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DELPH Seismic

Acquisition

User Guide

DELPH Seismic Acquisition– User Guide

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MU-DSA-AN-v30 Ed. A – May 2014 i

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MU-DSA-AN-v30 Ed. A – May 2014 ii

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MU-DSA-AN-v30 Ed. A – May 2014 iii

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MU-DSA-AN-v30 Ed. A – May 2014 iv

Overview of DELPH Seismic Acquisition User Manual

This document is the User Manual for DELPH Seismic Acquisition. It must be read and

understood prior to using DELPH Seismic Acquisition.

The manufacturer shall in no case be held liable for any application or use that does not

comply with the stipulations in this manual.

DELPH Seismic Acquisition User Manual is divided into the following parts:

• Part 1: Introduction – This section describes the architecture and purpose of DELPH

Seismic Acquisition.

• Part 2: Getting Started with DELPH Seismic Acquisition – This section describes

how to install the software and what the computer requirements are.

• Part 3: DELPH Seismic Acquisition – This part gives a global description of the

software main windows and other components.

• Part 4: Configuring DELPH Seismic Acquisition – This section describes how to

configure the software before a survey.

• Part 5: Real Time Mode – This section describes the operating mode during the

survey itself.

• Part 6: Replay Mode – This section describes the operating mode after the survey,

how to replay data already acquired.

• Part 7: Monitoring Display – This section explains how to handle the display of real

time and replay mode data.

The abbreviations and acronyms used in this manual are listed hereafter.

A Table of Contents is available in the following pages to allow a quick access to

dedicated information.

MU-DSA-AN-v30 Ed. A – May 2014 v

Text Usage and Icons

bold Bold text is used for items you must select or click in the

software. It is also used for the field names used into the dialog

box. Courier Text in this font denotes text or characters that you should enter

from the keyboard, the proper names of disk Drives, paths,

directories, programs, functions, filenames and extensions.

italic Italic text is the result of an action in the procedures.

The Note icon indicates that the following information is of interest to the operator and

should be read.

MU-DSA-AN-v30 Ed. A – May 2014 vi

Abbreviations and Acronyms

UDP User Defined Protocol

LAN Local Area Network

GIS Geographic Information System

SEG-Y Society of Exploration Geophysicists seismic data format

XTF eXtended Triton Format

MU-DSA-AN-v30 Ed. A – May 2014 vii

Table of Contents

I INTRODUCTION ...........................................................................................................................1

II GETTING STARTED WITH DELPH SEISMIC ACQUISITION .................................................................3 II.1 System Requirements .........................................................................................................3

II.2 Installing DELPH Seismic Acquisition ...............................................................................3 II.3 Service Pack ........................................................................................................................4

II.4 Managing License ...............................................................................................................5

III DELPH SEISMIC ACQUISITION OVERVIEW .....................................................................................7 III.1 Main Window .......................................................................................................................7

III.2 Specific Desktop Components .........................................................................................13 III.3 Customizing DELPH Seismic Acquisition ........................................................................14 III.3.1 Displaying Windows .......................................................................................................14

III.3.2 Customizing the Settings ................................................................................................14

III.3.2.1 Control Window Settings ................................................................................................15 III.3.2.2 Spectrum Window Settings .............................................................................................16 III.3.2.3 Indicators Settings ..........................................................................................................17 III.3.2.4 Playback Settings ...........................................................................................................18 III.3.2.5 Toolbar Settings .............................................................................................................19 III.3.2.6 Asynchronous Acquisition Settings .................................................................................20

IV CONFIGURING DELPH SEISMIC ACQUISITION ..............................................................................21 IV.1 Configuring the Acquisition Parameters..........................................................................21 IV.1.1 Server Window ...............................................................................................................22

IV.1.2 DELPH Seismic Analog 16 Bits AU32 PCI (legacy) Server .............................................23

IV.1.3 DELPH Seismic Analog 24 Bits PCI Server ....................................................................24

IV.1.4 DELPH Seismic Analog 24bits Ethernet Server ..............................................................26

IV.1.5 Edgetech Digital SBP Server ..........................................................................................27

IV.1.5.1 Using DELPH Acquisition on a Single Computer or an Edgetech Topside Unit ................27 IV.1.5.2 Using a Network Connection to an Edgetech Topside Unit (FSIU) ..................................27 IV.1.6 iXBlue ECHOES NI Server .............................................................................................33

IV.1.7 iXBlue ECHOES Digital Server .......................................................................................35

IV.1.8 BENTHOS Chirp III Server .............................................................................................36

IV.2 Configuring the Logging Parameters ...............................................................................38

IV.3 Configuring the Serial Port ...............................................................................................40 IV.4 Configuring the Plotting ...................................................................................................45

IV.5 DELPH Acquisition Network Remoting ............................................................................46 V DELPH SEISMIC ACQUISITION IN REAL-TIME MODE .....................................................................47

V.1 Receiving Navigation Data................................................................................................48

V.2 Transmitting an Acoustic Pulse .......................................................................................48 V.3 Receiving Seismic Data ....................................................................................................49

V.4 Testing Serial Port.............................................................................................................50 V.5 Testing Acquisition ...........................................................................................................51

MU-DSA-AN-v30 Ed. A – May 2014 viii

V.5.1 Navigation ..................................................................................................................... 51

V.5.2 Acoustic Pulse Transmission ......................................................................................... 52

V.5.3 Reflected Signals Reception .......................................................................................... 52

V.6 Testing Logging ............................................................................................................... 53 V.7 Plotting Data ..................................................................................................................... 54

VI DELPH SEISMIC ACQUISITION IN PLAYBACK MODE .................................................................... 55

VII MONITORING DISPLAY .............................................................................................................. 56 VII.1 Basic Monitoring .............................................................................................................. 56

VII.2 Data Quality ...................................................................................................................... 56 IXBLUE CONTACT - SUPPORT 24/7 CUSTOMER SUPPORT HELPLINE ................................ 58

IXBLUE CONTACT - SALES ......................................................................................................... 59

APPENDICES .................................................................................................................................. 60 A. Shortcut Keys / Keyboard Equivalent ............................................................................. 60

B. User Defined Protocol ...................................................................................................... 61 C. DELPH Analog Acquisition Unit ...................................................................................... 64 C.1 System Interfacing ......................................................................................................... 64

C.2 Power............................................................................................................................ 67

C.3 Ethernet Connection ...................................................................................................... 67

C.4 Analog signal I/O ........................................................................................................... 69

C.5 Serial Ports ................................................................................................................... 70

C.6 Performance & Specifications ........................................................................................ 73

C.7 Maintenance - Fuse Replacement ................................................................................. 75

D. DELPH Analog Acquisition Workstation ......................................................................... 76 D.1 Description .................................................................................................................... 76

D.2 Back Panel Connectors ................................................................................................. 77

D.3 Installing and Configuring the Trigger Board (CTR05) .................................................... 78

D.4 Installing and Configuring the Analog Converter Board (NI447x) .................................... 82

D.5 Analog Signal and Trigger Interfaces ............................................................................. 86

E. ECHOES Remote Control Advanced Configuration (Legacy) ........................................ 88 E.1 Customizing the Default Acquisition Mode ..................................................................... 88

E.2 Defining Additional Acquisition Mode ............................................................................. 90

MU-DSA-AN-v30 Ed. A – May 2014 ix

I INTRODUCTION

DELPH Seismic represents the new generation of seismic and sub-bottom profiler data

acquisition and processing software from iXBlue. The total software package is composed

of two primary applications: • DELPH Seismic Acquisition data logger for monitoring all incoming data streams and

recording to SEGY and XTF formats

• DELPH Seismic Interpretation for real time and replay mode seismic data interpretation

Figure 1 – DELPH Seismic solution architecture

This two-fold architecture was devised for a number of reasons, including: • Providing a simpler interface for field engineers responsible for monitoring and

recording data from a number of survey instruments.

• Providing a simpler and more streamlined method for configuring before a survey.

• Separating the data logging component from the processing and interpretation

components to provide greater stability to the logging software. Advancements in

processing and modifications of these software applications does not influence the

core responsibility of conducting a survey – logging quality seismic or sub-bottom data.

• Moving the analysis of seismic and sub-bottom data away from time-or shot-referenced

paper record interpretations towards true geo-referencing of the data in real-time or

post-processing.

Architecture

Benefits

MU-DSA-AN-v30 Ed. A – May 2014 1

The use of sophisticated, multi-component survey platforms composed of multi-beam

sonars, side-scan sonars, and sub-bottom profilers is becoming the standard for offshore

mapping operations. In addition, it is not atypical for a Local Area Network (LAN) to be installed on a vessel and

for the division of work offshore to be split between engineers responsible for acquiring the

data and geologists / geophysicists responsible for processing and interpreting the data.

The architecture of DELPH Seismic reflects these new survey strategies.

The global structure of the seismic data software solution is described on section III:

• A dedicated server: to drive the acquisition and trigger boards of a specific device

• An application dedicated to the seismic sensor enabling the parameterization of the

acquisition (DELPH Seismic Acquisition, the focus of this manual). Data are stored in

SEG-Y or XTF (Chirp only) files.

Existing Survey

Strategies

Structure

II GETTING STARTED WITH DELPH SEISMIC ACQUISITION

II.1 System Requirements The minimum PC configuration must be: • An Intel Pentium® IV or faster CPU running on a Microsoft® Windows®-based

computer (Windows® XP Service pack 2 minimum)

• 512 MB of RAM for data logging, 1 GB as minimum for full interpretation package

(excluding the memory required by the operating system)

• 500 MB of disk space for installation files

• Enough storage space to hold all data

• 3D Graphical board supporting OpenGL for DELPH RoadMap application

The standard PC configuration is:

• Intel Core 2 Duo @ 3 GHz CPU running on a Microsoft® Windows®-based computer

(Windows® XP Service pack 2 minimum)

• 4 GB of RAM for the complete interpretation package

II.2 Installing DELPH Seismic Acquisition

iXBlue issues a Release DVD to new customers and EMA (Extended Maintenance

Agreement) members containing the latest version of the software. An installation wizard

helps you through the installation.

Step Action

1. Insert DELPH software DVD in the DVD drive.

Minimum

Standard

Procedure

Step Action

2. Click on Install and follow the next steps by clicking on Next, and then Install.

3. Wait until the installation is finished.

The following folders are created on the workstation hard disk:

4. End of procedure.

II.3 Service Pack

In addition to the Release DVD, Service Packs are periodically released to fix bugs and

add features reported or requested by users. In such a case, iXBlue provides to you a

Service Pack DVD.

Do not remove DELPH software from your computer before installing the service pack.

Procedure

Step Action

1. Open the DVD main folder.

You find a release note .pdf file and a service pack folder (its name depends of the

software package).

2. Read the release notes .pdf file.

3. Copy the files from the service pack folder to your DELPH folder.

The service pack is now operating.

II.4 Managing License

The software protection type in case of a standard customer purchase is made through a

dongle that is physically plugged in the computer. Two kinds of dongle are available:

• USB key dongle

• Parallel key dongle

Figure 2 – USB and Parallel Dongles

Several key dongles can be simultaneously used. Usually one dongle is dedicated for the

acquisition on board the survey vessel and another dongle is used for the interpretation

software onshore. Parallel dongles can be plugged on each other when both software

packages are to be used on the same machine. As well USB and parallel dongles can be

simultaneously used.

At any time you can check if the dongle is operating properly. The application used on this

purpose is called ProtEdit.exe and can be found in the Protection folder

C:\IXBLUE\DELPH\Tools\Protection. It can also be run directly from the Start

If the dongle is present and active, it displays the window shown on Figure 3 (example of

a customer using the DELPH Seismic package).

If your dongle is not available (not plugged or damaged) the Detection indicator turns red.

See Figure 4.

DELPH dongles contain a version number. They enable all DELPH software versions up

to this value. Dongles are upgraded to the latest product version in the frame of the

Extended Maintenance Agreement - EMA.

The procedure to upgrade a physical dongle is supplied in the upgrade delivery

Dongle

Dongle Checking

Dongle Versioning

Figure 3 – ProtEdit application with an active Dongle

Figure 4 – ProtEdit application with a not present or damaged Dongle

III DELPH SEISMIC ACQUISITION OVERVIEW

III.1 Main Window The main window of DELPH Seismic Acquisition is composed of several windows that are

default opened upon launching. Other windows can also be displayed through the menus

and/or buttons. The Figure 5 and the Figure 6 show the application main window in real-

time mode and in replay mode.

Figure 5 – DELPH Seismic Acquisition in real-time mode

Figure 6 - DELPH Seismic Acquisition in playback mode

Main window

You can move your pointer above button or menu to access its tool tip:

• Windows, menus, and buttons common to both modes are described in Table 1.

• Windows, menus, and buttons specific to the real time mode are described in Table 2

and Table 3.

• Windows, menus, and buttons specific to the replay mode are described in Table 4 and

Table 5.

Table 1 – Window components common to both modes

The following component…. Allows to…

Application Menu

Real Time, Playback: choose between real time and

replay mode (Replay option not available during

acquisition).

Settings…: set the colors, sizes, and location of each

window of the main screen.

Close: close the application

Plotter Menu / button

Plotter: start or stop the plotter, display the plotter status

Configure Printing parameters…

Configure Plotter Parameters…

Windows Menu / button

Choose the bars (tools, menu) and windows to display.

Choose the way to display them.

Help Menu

Shortcut Keys…: get the definition of the shortcut

keysReset to Factory Settings…: reset all the

parameters to their factory settings,

About DELPH …: have the software version.

Tool tips

Information Window: it provides a text display of logging

and navigation information. Red and green indicator

boxes around the text provide visual confirmation of

acquisition, logging, and serial port

The parameters preceded by this icon are editable

on the fly during acquisition.

Navigation window: It shows the current X, Y position

(Longitude/Latitude or Easting/Northing) and heading of

vessel. Right-clicking on the window to select the heading

type (e.g., Course-Made-Good, True Course-Over-

Ground, etc.).

Sensor Depth: Fish depth below waterline.

Altitude: Fish altitude above the bottom.

Attitude window Display the roll, pitch and heave measured by the attitude

sensor.

Survey window

Display the Kilometer Point (KP) and the Fix Number

parameters

Profile Window: it provides a scrolling display or history

of the data for the duration of the window on a shot-by-

shot basis. Vertical time scale and horizontal shot

number lines may be overlaid on the data.

Trace or Oscilloscope Window: it provides a trace view

of the data on a shot-by-shot basis. Multiple channels

may be viewed in this window. Automated options exist

for cycling through channels or sets of channels (e.g.,

odd and even channels).

Indicators Window: it is used to monitor the status of

incoming data streams from the equipment and the

navigation system, and to monitor the logging of data.

Color-coded messages are linked with update time

thresholds (“watchdogs”) set by the user.

Filter Window: it shows the current filter settings being

applied to the data displayed on the screen. High and low

pass filter values may be set by clicking on the icon

adjacent to the value. Green colors indicate active

values. None of the filter values affect the raw data being

logged.

Spectrum Window: it shows the frequency spectrum of

the incoming signal.

Gain Window: This window displays the maximum

amplitude of the signal for each seismic channel.

Table 2 – Menus specific to the real time mode

The following component … Allows you to …

Acquisition menu

Start / Stop, to start/stop the acquisition,

Pause, to pause/resume the acquisition

Step, one ping forward and then pause

Configure Acquisition Parameters… : configures the settings of the

device dedicated server

Select an Acquisition Device Type… : select the device dedicated

server

Logging menu

Start / Stop: to start/stop the logging,

Log to a New File: to save the data in a new file,

Configure Logging Parameters…: to configure the logging parameters

Serial Ports menu

Connect / Disconnect: to connect/disconnect the serial ports,

Configure Serial Ports Parameters…: to configure the serial port

parameters

Configure Sensors Geometry…: to configure the geometry of the

external sensor.

Table 3 – Buttons specific to the real time mode

Button Task

Configure directly:

Acquisition Parameters…: same as Acquisition ►Configure Acquisition Parameters… menu

Acquisition Device Type…: same as Acquisition ►Select an Acquisition Device Type… menu

Logging Parameters…: same as Logging ►Configure Logging Parameters… menu

Serial Ports Parameters…: same as Serial Ports ►Configure Serial Ports Parameters… menu

Start/stop directly the acquisition (same as Acquisition ►Start / Stop menu)

Pause the acquisition (same as Acquisition ► Pause menu)

Ping by ping Acquisition, activated only if the Pause button is selected (same as Acquisition ► Step menu)

Start / stop directly the logging (same as Logging ►Start / Stop menu)

Log to a New File, to record the data in a new file which name is filename_n+1 where filename

is the previous file name and n is the previous suffix of the file name (activated only if the Logging

button is selected and the same menu as Logging ► Log to a New File).

Connect/disconnect directly the serial ports (the same as option Connect/Disconnect of menu

Serial Ports).

Table 4 - Menus specific to replay mode

The following component… Allows you to…

Replay menu

Open, to open the file to replay,

Close, to close the replay file,

Go To First Ping, to go to the first ping,

Go Backward, to go backward,

Step Backward, to go to one ping backward,

Pause, to pause the display,

Step Forward, to go to one ping forward,

Go Forward, to replay the file from the beginning,

Go To Last Ping, to go to the last ping,

Go To Ping…, to go to a specific numbered ping,

Full Speed, to scroll or not with the recording speed.

Enable/Disable Chirp Processing

Configure Chirp Processing Parameters…

Use Original Chirp Descriptor

Use a Chirp Descriptor file

Table 5 - Buttons specific to replay mode

The following component… Allows you to…

Find and open the file to replay.

Close the replay file.

Go to the first ping

Go backward.

Go one ping backward.

Interrupt the scrolling.

Go one ping forward.

Go to the last ping

Go to a specified ping number.

Scroll with the full speed of the record.

Upon launching the DELPH Seismic application,

• A server dedicated to the acquisition of the seismic equipment is automatically

launched.

• A server managing the input/output of the serial and Ethernet ports (iXBlue IO Server)

is also automatically launched (see Figure 7).

Figure 7 - I/O server

Servers

III.2 Specific Desktop Components

On the desktop, in DELPH Acquisition folder, the DELPH Seismic Acquisition icon

enables a quick access to the application:

Two icons located in the Windows taskbar allow you to directly manage (Figure 8):

• The server dedicated to the geophysical sensor data acquisition (for example: )

• The I/O server

Figure 8 – Windows taskbar

Shortcut key

Taskbar

III.3 Customizing DELPH Seismic Acquisition

You can customize DELPH Seismic Acquisition: you can choose the windows to display,

their sizes, locations, some colors etc. For the window displaying data, you can choose

the display type, the scales etc. You can also customize the toolbar.

III.3.1 DISPLAYING WINDOWS

Selection of the components to display can be made with the help of:

• The Windows button

• The Windows menu

Upon application launching, the default displayed components, in real time mode, are:

• The toolbar

• The Information window

• The Navigation window

• The Waterfall window

• The Control window

• The Indicator window

All the windows, except the Signal and Control windows, can be resized and/or moved.

III.3.2 CUSTOMIZING THE SETTINGS

You can set up some parameters for the following components:

• Control window

• Spectrum window

• Playback Settings

• Toolbar Settings

Important: To validate the modifications of the parameters contained in the tabs

described below, click OK.

Choices

Default

Actions

III.3.2.1 Control Window Settings To accede to the customization parameters of the Control window, select

Applications/Settings then choose Control Window tab (see Figure 9).

Figure 9 –Settings Window

• Graphics Colors: Choose the colors of the background (Background Color), of the

curve (Plot Color), and of the box surrounding the window (Trace Box Color).

• Amplitude Scale: Choose the vertical scale (User defined full scale) and its color

(Amplitude Scale color).

• Display Acceleration: Choose a scrolling display that prevents you from data loosing

(box Scroll without restoring data being covered checked) on a ping by ping base

(field Update All displays every set to 1) or on a ping packets base (field Update All displays every set to a value greater than 1).

• Multiple Channels Display: Display a range of input channels or switch between odd

and even channel numbers.

• Time / Range Scale: Define a sound speed in the water different from the standard

one that is 1500 m/s (box User defined speed of sound checked and value different

from 1500 m/s typed in the corresponding box). Choose to display fixed intervals in the

horizontal scale (box Fixed time/range scale interval checked) and to set their value

and color (Time scale color).

• Distance Scale Lines: Display transverse lines (box Display the distance scale

checked) labeled with the number of pings and choose the color of this line (Time Scale color).

• Annotations: Display and change the color of the annotations.

III.3.2.2 Spectrum Window Settings

To accede to the customization parameters of the Spectrum window, select the

Applications > Settings menu then select the Spectrum Settings tab (see Figure 10).

Figure 10–Spectrum window tab

This window allows you to edit the colors of the Background, Plot, Trace Box, Frequency Scale and Amplitude Scale. You can also edit the sampling of the

Frequency Range.

The Frequency Range defines the extent of the frequency scale in the spectrum window.

When oversampling the signal, the display frequency range can be adjusted to better

monitor the used bandwidth.

III.3.2.3 Indicators Settings

In real-time mode, to accede to the customization parameters of the indicators settings,

select Applications/Settings then choose Indicators Settings tab (see Figure 10).

Figure 11–Indicators Settings tab

The Indicator Settings parameters relate to the alarms that are displayed when events

do not occur within a specified period, or when parameters reach a critical level.

The acquisition, logging and navigation alarms are based on a period of time between

successive acquisition events:

• Acquisition: The period between successively acquired pings is monitored and an

alarm is fired when no sensor data is received within the specified period.

• Logging: The period between successively recorded pings is monitored and an alarm

is fired when data cannot be written to the storage media.

• Navigation: The period between successively received positions is monitored and an

alarm is fired when no positioning data is received.

When all data is acquired within the specified rates and the Indicators window is opened,

the three parts of it display in green.

When one of these time-out periods is surpassed without a new update, the

corresponding part of the Indicators window turns to yellow.

If two time-out periods are exceeded, the corresponding part of the Indicators window

turns to red.

When the sensor altitude is received and reaches a critical value (meaning that the

sensor is too close to the seabed), an alarm is triggered.

Timeouts

Altitude

When the critical altitude is reached, the right-most part of the Indicators window turns red

and displays the actual sensor altitude.

Figure 12 – Indicators window

During converting the analog signal into digital data, the amplitudes are monitored and the

resulting signal is checked for saturation. When the signal is saturating, the acquisition

part of the Indicators window displays 'Saturation' and turns into red. This alarm requires

no user setting.

III.3.2.4 Playback Settings

In replay mode, to accede to the customization parameters of the Playback Settings,

select the Applications > Settings menu then select the Playback Settings tab (see

Figure 13).

Figure 13 – Playback Settings tab

This window allows you to set the playback rate defined by a number of milliseconds per

ping. You have also the option to go back automatically to the beginning of the file when

the file is entirely read.

Saturation

III.3.2.5 Toolbar Settings

To accede to the customization parameters of the Indicator window, select

Applications/Settings then choose Toolbar Settings tab (see Figure 14).

Figure 14 –Toolbar Settings tab

• Text options : select one of the following options:

Show text labels No text labels

• Icon options : Display Big Icons or Small icons

III.3.2.6 Asynchronous Acquisition Settings

In asynchronous real-time mode, the Asynchronous Acquisition Settings page is present

in the DELPH Seismic Acquisition of the slow channel. It contains parameters for defining

or not synchronization for both data acquisition and data storage between the slow and

the fast channels. • When Acquisition State is activated, the events of start/end and pause for the data

acquisition are synchronized between the slow and fast channels.

• When Storage State is activated, the events such start/end and pause for the data

storage are synchronized between the slow and fast channels.

Figure 15 - Application Settings – Asynchronous Acquisition Settings Tab

IV CONFIGURING DELPH SEISMIC ACQUISITION

Before beginning the data recording, it is recommended to create the recording

directory(ies) where the data files are stored.

The recording file sizes depend on the option Line Switch Mode chosen when

configuring the recording (see section IV.2).

• Auto Switch Disabled: no automatic closing of the recording file. The file size

increases with time. The file is closed at the end of the recording operation.

• On file Size, the closing of the file occurs when it reaches the specified size,

Maximum File Size. Then another recording file with the same name but with a ‘_1’

suffix is created, it closes when it reaches the specified size. Then another recording

file with the same name but with a ‘_2’ suffix is created …

• On Ping Count: the closing of the file occurs when it reaches a specified number of

pings, Maximum Ping Count. Then another recording file with the same name but

with a ‘_1’ suffix is created, it closes when it reaches the specified number of pings.

Then another recording file with the same name but with a ‘_2’ suffix is created, …

The recorded files have the eXtended Triton XTF or the SEG-Y SEG, TRA, PAR format.

IV.1 Configuring the Acquisition Parameters Upon launching the DELPH Seismic application, a server is either automatically opened or

the user is prompted to select a server. These two behaviors are dependent on the

number of server options activated in the dongle (automatic server launching occurs when

only one option is activated on the dongle).

The available servers are:

• DELPH Seismic Analog 16 Bits AU32 PCI (legacy): server dedicated to drive the

AU32 DSP and trigger boards (obsolete equipment, available only with Windows 2000

OS), see section IV.1.2

• DELPH Seismic Analog 24 Bits PCI: server dedicated to drive the NI standard

seismic acquisition and trigger boards, see section IV.1.3

• DELPH Seismic Analog 24bits Ethernet: server dedicated to drive DELPH Analog

Acquisition Unit, see section IV.1.4

• Edgetech Digital SBP: server dedicated to drive the EdgeTech’s Full Spectrum Sub-

bottom Profilers (SB-424, SB-216S, or SB-0512i Tow vehicle), see section IV.1.5

• iXBlue ECHOES NI Server: server dedicated to drive the NI chirp acquisition and

trigger boards (available with the ECHOES sub-bottom profiler only), see section IV.1.6

• iXBlue ECHOES Digital SBP: server dedicated to drive ECHOES sub-bottom profilers

having an iXBlue COMGEN Ethernet link (available with the ECHOES sub-bottom

profiler only), see section IV.1.7

Recording Directory

File Sizes

File Format

Servers

• Benthos Chirp III Server: server dedicated to BENTHOS sub-bottom profiler, see

section IV.1.8

• DELPH Seismic File Server: server that reads existing data files for simulation and

training purpose

The selection of a server is proposed spontaneously or can be made via the menu

Acquisition > Select Acquisition Device Type:

Figure 16 – Choose your seismic server window

The acquisition parameters associated with a given server can be accessed through the

Acquisition menu of DELPH Seismic (Acquisition Configure Acquisition Parameters…) or with a right click on the Acquisition Parameters in the Information

Window.

IV.1.1 SERVER WINDOW

Figure 17 shows the typical Graphic User Interface (GUI) associated with a server.

A green indicator bar light shows the connection status. Information messages are available in a panel at the bottom of the dialog box. Finally, two buttons on the right side of the dialog box control the display of the server

interface on the desktop. Selecting the right button minimizes the dialog box in the system

tray (an icon appears adjacent to the system clock in the taskbar). The left button,

represented by a “stick pin”, controls whether other windows can hide the dialog box or

always the dialog box remains on top.

Figure 17 - Typical Server Dialog Box

Select Server

Server Parameters

IV.1.2 DELPH SEISMIC ANALOG 16 BITS AU32 PCI (LEGACY) SERVER

Analog AU32 seismic server (see Figure 18): it is the server designed for the old ELICS

AU32 boards. See ELICS documentation for the definition of the acquisition parameters.

Figure 18- Analog AU32 Seismic Server Acquisition Parameters

IV.1.3 DELPH SEISMIC ANALOG 24 BITS PCI SERVER

In the case of an Analog NI Seismic server the user has access to

• For Synchronous acquisitions (see Figure 19)

Synchronization mode: Master or Slave. In Slave mode, the external system

sends the trigger to DELPH Seismic. In Master mode the trigger rate is set from

within the DELPH Seismic software and the trigger is sent to the Source via the

“Trigger Out” BNC connector on the trigger cable. Shooting Rate, delay between two triggers (Master mode only)

Sampling Frequency, sampling frequency of analytic signal.

Recording Length: you can define the length of the recording depending on what

you want to visualize and log.

Recording Delay: you can begin the recording immediately or later by fixing a

recording delay

Number of Channels: for multi channel systems.

Coupling Mode: you can choose the type of the input signal on the analog channel

DC or AC. In AC mode, the signal is high pass filtered (a few Hz) before the AD

conversion. This is the recommended mode of operation.

Various Trigger parameters: Mode (no available in the current version), Level is

the low threshold for triggering, Edge is used to trigger on the Rising or Falling

edge of the pulse.

Figure 19- Analog NI Seismic Server Acquisition Parameters (Synchronous acquisition)

• For asynchronous acquisition: (see appendix C for the connections): to set DELPH

Seismic Acquisition in asynchronous mode acquisition, the user has to select the NI

Seismic server and then Application ► Real time ► Asynchronous Seismic.

DELPH Seismic Acquisition is now configured to acquire the slow channel data. A

second DELPH Seismic Acquisition window opens to acquire the fast channel data. As

each window allows the data acquisition, respectively on the slow and fast channels,

each instance can be used independently or can be synchronized as concern the data

recording and the data acquisition.

The user has access to the following parameters (see Figure 20)

Synchronization Mode: Master or Slave. In Slave mode, the external system

sends the trigger to DELPH Seismic. In Master mode the trigger rate is set from

within the DELPH Seismic software and the trigger is sent to the Source via the

“Trigger Out” BNC connector on the trigger cable.

Shooting Rate, delay between two triggers

Sampling Frequency, sampling frequency of analytic signal.

Recording Length: you can define the length of the recording depending on what

you want to visualize and log.

Recording Delay: you can begin the recording immediately or later by fixing a

recording delay Coupling mode: you can choose the type of the input signal on the

analog channel DC or AC. In AC mode, the signal is high pass filtered (a few Hz)

before the AD conversion. This is the recommended mode of operation.

and various Trigger parameters : Level is the low threshold for triggering, Edge is

used to trigger on the Rising or Falling edge of the pulse.

Figure 20 - Analog NI Seismic Server Acquisition Parameters (asynchronous acquisition)

IV.1.4 DELPH SEISMIC ANALOG 24BITS ETHERNET SERVER Please see Appendix C for the connection to the DELPH Analog Acquisition Unit.

In the case of a DELPH Analog Acquisition Unit the user has access to

• Synchronization Mode: Master or Slave. In Slave mode, the external system sends

the trigger to DELPH Seismic on the “Sync In” BNC connector. In Master mode the

trigger rate is set from within the DELPH Seismic software and the trigger is sent to the

Source via the “Sync Out” BNC connector.

• Number of Channels: Number for channels to acquire from signal input BNC

connectors. Set to 1 for single channel seismic or more in the case of multi-channel

seismic systems.

• Sampling Frequency: Number of samples per second of recorded signal (Hz). Must

be at least twice the maximum acoustic frequency in use.

• Shooting Rate: Delay (ms) between two triggers (Master mode only)

• Recording Length: Defines the length of the acquired and logged signal (ms), within

two triggers.

• Recording Delay: The acquired signal can begin immediately after the trigger event or

later by defining a recording delay (ms).

• Coupling Mode: Defines the type of input signal on the analog channel DC or AC. In

AC mode, the signal is high pass filtered (a few Hz) before the AD conversion. This is

the recommended mode of operation. The AC or DC filtering can be bypassed by

checking the Bypass filters checkbox.

• Trigger Edge: You can configure the external trigger detection (available in Slave

mode only) between the Rising and Falling edge of the synchronization signal.

Figure 21- DELPH Seismic Analog – 24bits Ethernet Acquisition Parameters

If the DELPH Analog Acquisition Unit is powered off and then started again while DELPH

is already running, the top-left icon in the server window turns red and a message is

displayed in the log. The software tries to reconnect itself automatically to the DELPH

analog Acquisition Unit for a few seconds. However, you may press on the red icon to

force the software reconnecting to the DELPH Analog Acquisition Unit.

IV.1.5 EDGETECH DIGITAL SBP SERVER

IV.1.5.1 Using DELPH Acquisition on a Single Computer or an Edgetech Topside Unit

DELPH Acquisition can be operated on a single computer:

• With a direct connection to the sub-bottom profiler

• Through Edgetech ETSI software

• Through Edgetech Discover software

In each configuration, DELPH has to connect to the Edgetech software or equipment

through a TCP/IP connection.

When connecting the sub-bottom profiler directly, the connection is made to the tow-fish

TCP/IP address on the sub-bottom profiler control and command ports.

When a connection is made to an Edgetech software, the TCP/IP address that will be

used is the localhost (127.0.0.1) as both software operate on a same computer.

Interfacing DELPH to the Edgetech sub-bottom only towfish

DELPH Seismic Acquisition can be installed on Edgetech's topside computer or a

secondary computer through an Ethernet link. DELPH Seismic Acquisition communicates

directly with the Edgetech tow-fish on Ethernet ports 1600 and 1601 (default values).

Therefore, the IP address to select is the locahost (127.0.0.1) if running on a same

computer or the Edgetech computer's IP address.

Care must be taken that no other software uses the connection to the sensor at that time.

In direct connection, the topside workstation must have a valid IP address in the same

space as the equipment which defaults to 192.9.0.100 and mask 255.255.255.0.

IV.1.5.2 Using a Network Connection to an Edgetech Topside Unit (FSIU)

EdgeTech’s FS-SB system interfaces via a standard Ethernet link at 10 Mb per second

between a network card in the DELPH Seismic computer and another one in the

EdgeTech system. Both computers run the TC/IP protocol. Note that the cable is wired in

a crossover configuration to allow connections between FS-SB and the PC. The user has

to know the TC/IP address of the EdgeTech FS-SB box (default is 192.10.0.100). The

data always contain two parts:

• The header: it describes the size and the type of the transmitted data

• The data coming from the FSSB system

Interfacing DELPH to Edgetech side-scan sonar & sub-bottom combined systems Edgetech combined side-scan sonar and sub-bottom profiler systems interface to

Edgetech topside computer - FSIU - which streams the sensor data to third party

acquisition systems. DELPH Acquisition can acquire the streamed data from a workstation

that is networked with the FSIU. DELPH Sonar Acquisition acquires the side-scan sonar

data while DELPH Seismic Acquisition acquires the sub-bottom profiler data. This allows

DELPH Acquisition software to be operated on a same or separate acquisition computers.

EdgeTech 2000 series Combined Tow Fish

EdgeTech FS-IU interface with

Starmux Digital Telemetry/Power

DELPH Sonar Acquisition +DELPH Seismic Acquisition

Data Logger

192.9.0.100

192.9.0.101

192.10.0.100192.10.0.99

Figure 22 - DELPH Sonar and DELPH Seismic acquisition on the same computer

DELPH Sonar AcquisitionData Logger

192.9.0.100

192.9.0.101

192.10.0.100

192.10.0.98

DELPH Seismic AcquisitionData Logger

192.10.0.99

Figure 23 - DELPH Sonar and DELPH Seismic acquisition on two separate computers

In such configurations, Edgetech's FSIU runs the ETSI software from Edgetech,

configured to transmit sensor data to third-party topsides.

ETSI software from Edgetech runs on the FS-SB topside unit. In the program directory

(defaults to C:\Edgetech\ETSI), the ETSI.ini file holds the present configuration. Its use is

described in the ETSI.txt file in the same directory.

In the present example we configure the system for using DELPH Seismic Acquisition and

DELPH Sonar Acquisition software (used on Edgetech's combined systems). This

configuration can be used for acquiring FS-SB data only.

Step Action

1. Close the ETSI software.

2. Edit the ETSI.ini file in a text file editor.

3. Increment the number of topsides to include DELPH Seismic and Acquisition software. ; number of topsides Topsides=3

4. Scroll down in the file to find the DELPH Seismic Acquisition topside ID.

ID 01 can be left available for Edgetech's software.

ID 02 can be reserved for DELPH Seismic Acquisition.

ID 03 can be reserved for DELPH Sonar Acquisition.

Configuring ETSI

Procedure

5. Configure DELPH Seismic Acquisition topside. ;---------------------------------------- ; Interface with second topside ;---------------------------------------- ; control socket info [FSTOPIN01] Port=1600 InputBuffer=32768 OutputBuffer=32768 HandlerType=1 ; data output socket info [FSTOPOUT01] Port=1601 InputBuffer=32768 OutputBuffer=200000 HandlerType=1 Active=0:0,100:0,101:0

6. Configure DELPH Sonar Acquisition topside (optional). ;---------------------------------------- ; Interface with third topside ;---------------------------------------- ; control socket info [FSTOPIN02] Port=1900 InputBuffer=32768 OutputBuffer=32768 HandlerType=1 ; data output socket info [FSTOPOUT02] Port=1901 InputBuffer=32768 OutputBuffer=200000 HandlerType=1 Active=20,21

7. Make sure that ports 1600,1601,1900,1901 are not used by the other listed topsides and

not used in the "Interface with J-Star topside" section at the end of the file (in such case

renumber J-Star port numbers to 1800 and 1801.

8. Save ETSI.ini file and start ETSI.exe software on Edgetech's workstation - FSIU.

9. End of Procedure.

When operated on a separate workstation, DELPH topside workstation must have a valid

IP address in the same address space as the Edgetech's FSIU which defaults to:

• IP address : 192.10.0.99

• Sub-network mask : 255.255.255.0

DELPH Sonar Acquisition +DELPH Seismic Acquisition

Data Logger

192.9.0.100

192.9.0.101

192.10.0.100192.10.0.99

Figure 24 - DELPH Sonar and DELPH Seismic acquisition on the same workstation

Installing the Connection

Configuring DELPH Seismic connection to Edgetech FS-SB (all configurations)

Step Action

1. Launch DELPH Seismic Acquisition.

2. If you have several servers installed on your computer you are prompted to choose

which one you are going to use. Choose the Edgetech FS-SB Server.

3. Launch the data acquisition. If the tow fish is correctly connected and the IP addresses

valid, the server window displays “Connected” in green.

Launching the Server

Configuring Edgetech's FS-SB from DELPH Seismic Acquisition

Figure 25 - FSSB Server Acquisition Parameters

The user has access to:

• Network tab: to configure and activate the connection

Host IP Address: it is the network address of the EdgeTech System, the Connect

button establishes the connection when clicking on it. Command/Data Ports: it is the Ethernet port numbers to send commands and

receive data to/from the sub-bottom profiler.

The sonar Statuses (shooting rate, sampling rate, ping number, samples per channel) are displayed in the Sonar Status area.

• General tab: use it to define the main acquisition parameters

Shooting Rate: it is the time between two emitted recurrences (in millisecond

The Recording Length: it is the length of the record at the signal reception after

the delay (in milliseconds)

Recording Delay: it is the delay before beginning the record (in milliseconds)

Enable Scaling: used it to normalize the signal to the maximum of the full scale.

• Gain tab:

Receive Gain: it is the gain to apply at the signal reception

Pulse Power: it is a percentage of the emitted power

• Trigger tab: use it to define the synchronization parameters

Trigger: to define the synchronization mode (internal, external, coupled)

Trigger Decimation: Decimate the data by 1/n. Choose n.

Master Id: use to define the synchronization source when coupled mode is selected

for Trigger (L(ow)F(requency Sonar, H(igh)F(requency) Sonar).

• Pressure tab: Offset to Add: the received pressure is displayed in Pressure field, Offset to Add

allows to enter an offset to apply to this value (in milli Pound per Square Inch).

IV.1.6 IXBLUE ECHOES NI SERVER

In the case of an NI chirp server (see Figure 26) the user has access to:

the trigger to DELPH Seismic. In Master mode the trigger rate is set from within the

DELPH Seismic software and the trigger is sent to the Source via the “Trigger Out”

BNC connector on the trigger cable.

• Sampling Frequency, sampling frequency of analytic signal.

• Shooting Rate: in case of a multi-ping option selected, it is the minimum supported

interval.

• Recording Length: you can define the length of the recording depending on what you

want to visualize and log. In multi-ping case, the recording length is always calculated

to lay between 2 pings.

• Recording Delay: you can begin the recording immediately or later by fixing a

recording delay.

• Multi-ping option: you can use a sensor depth (highly recommended) or not and

define the sound velocity. You have to define the recording delay step. When the

multi-ping option is activated, the actual shooting rate is automatically computed to

achieve the best horizontal resolution (up to the shooting rate).

• Chirp Model: list of predefined (low frequency - high frequency - emission duration –

window shape in amplitude (not only Cosbell shape available)) values.

• Emission Power: it is a percentage of the maximum power (5 V).

Figure 26- Analog NI Chirp Server Acquisition Parameters

Interfacing with iXBlue ECHOES

DELPH Seismic Acquisition interfaces with the iXBlue ECHOES products through this NI

chirp server. It provides functions to remote control both amplifiers: the ENERTEST type

for the acoustic emission and the RAP type for the data reception. These functions are

accessible by selecting Configure/ECHOES Amplifier Control… (see Figure 27). Refer

to Appendix E for more options.

Figure 27 - Echoes Remote Controller window

In this window, the green color (of the icon tabs and of the text) indicates that the

connection with the serial port is established.

• For the Transmit Amplifier tab (ENERTEST type), the user has to define the COM

port. The user controls the transmit amplifier (Start/Stop)

• For the Receive Amplifier tab (RAP type), the user has to define

The COM port,

The Acquisition Mode: three modes are proposed by default: Shallow Water,

Medium Water, Deep Water. For each of these three modes, the pre-Amplification

Gain (before signal processing) and the Amplification Gain (after signal processing)

are default set to 1. You have to set your own pre-Amplification or Amplification

values for each mode by modifying the file EchoesRemoteControl.txt (see

appendix A).

The choice User Defined mode enables you to define another one configuration

with the pre-Amplification and Amplification values in a list:

Pre-amplification Gain: 1, 10, 100, 1000

Amplification Gain: 1, 2, 4, 8, 16, 32, 64, 128, 256

clicking on Send activates these choices.

For both tabs, the TX/RX boxes display the frames transmitted to (TX) or received from

(RX) the amplifier.

IV.1.7 IXBLUE ECHOES DIGITAL SERVER

Figure 28 – iXBlue ECHOES digital server parameters

In the case of the ECHOES Digital server (see Figure 28) the user has access to:

the trigger to DELPH Seismic. In Master mode the trigger rate is set from within the

DELPH Seismic software and the trigger is sent to the Source via the “Trigger Out”

BNC connector on the trigger cable.

• Sampling Frequency in Hz: sampling frequency of analytic signal.

• Shooting Rate in ms: in case of a multi-ping option selected, it is the minimum

supported interval.

• Recording Length in ms: you can define the length of the recording depending on

what you want to visualize and log. In multi-ping case, the recording length is always

calculated to lay between 2 pings.

• Recording Delay in ms: you can begin the recording immediately or later by fixing a

recording delay.

• Multi-ping option: you can use a sensor depth (highly recommended) or not and

define the sound velocity. You have to define the recording delay step. When the

multi-ping option is activated, the actual shooting rate is automatically computed to

achieve the best horizontal resolution (up to the shooting rate).

• Chirp Model: list of predefined (low frequency - high frequency - emission duration –

window shape in amplitude (only Cosbell shape available)) values.

• Emission Power: it is a percentage of the maximum power (5 V)

• Available option to inhibit the Chirp emission (the power still active)

IV.1.8 BENTHOS CHIRP III SERVER In the network connection panel, select the Ethernet device that is used to connect the tow

fish and configure it with the following parameters:

• IP address : 192.168.0.25

• Sub-network mask : 255.255.255.0

Step Action

1. Launch DELPH Seismic Acquisition.

2. If you have several servers installed on your computer you are prompted to choose

which one you are going to use. Choose the Chirp III Server.

3. Launch the data acquisition. If the tow fish is correctly connected the server window

displays “Connected” in green.

The server is configured in the following procedure. A series of parameters must be set.

The list of these parameters is:

• Hardware Gain: gain on both Low and High frequency channels

• Shooting Rate: time between two pings (a larger shooting rate for a larger distance

between the tow fish and the seabed)

• User Defined Recording Length: time interval of recorded data (for large shooting

rates, choose a short recording length to avoid huge and useless data storage)

• User Defined Recording Delay: time between ping and start of storage

• Working frequencies: couple of low and high frequencies

• Pulse Length (ms): length of the emitted chirp

• Power Level: level of power emitted from 0 to 7 (no unit).

RECORDING DELAY + RECORDING LENGTH MUST NOT EXCEED SHOOTING RATE.

TO SET THESE OPTIONS, PLEASE ENSURE THE ACQUISITION IS STOPPED.

Installing the Connection

Launching the Server

Configuring Parameters

Step Action

1. On the DELPH Seismic Acquisition window, click on .

The parameter window opens.

2. Click in the editing field in front of Hardware Gain and type in a new value. You can also

use the arrows to set up the new value.

3. Click in the radio button corresponding to the Shooting Rate of your choice.

4. Click in the check box besides User Defined Recording Length, click in the editing field

and type in the recording length value.

5. Click in the check box besides User Defined Recording Delay, click in the editing field

and type in the recording length value.

6. In the Working Frequencies frame, click a check box to choose a frequency couple.

7. In front of Pulse Length move the cursor to choose a value on the slider.

8. In front of Power Level move the cursor to choose a value on the slider.

9. Click on OK to validate your configuration and to close the window.

If you don’t manage to launch the acquisition, please check the server window. If you see

the “Unable to open device” message, please check that:

• The tow fish is connected to the dedicated Ethernet port

• The IP address entered for this Ethernet port is 192.168.0.25

Procedure

Trouble shooting

IV.2 Configuring the Logging Parameters

Logging parameters can be accessed:

• By the Logging > Configure Logging Parameters… menu, see Figure 29

• By a right-click on the Logging option in the Information window

• By a left-click on then choose Logging Parameters

Figure 29 - Option Associated with Logging Menu

The following window opens:

Figure 30 - Logging Parameters

Parameters:

• Logging Folder: Name of the logging folder you have created yet.

• Line Naming Mode: Select between Line Name, Date and Time, Date & Time + Line Name, Line Name + Date & Time modes.

• Line Name: Generic name of the logging file.

• File Format: SEG-Y Float IEEE, SEG-Y Float IBM, XTF (chirp only) • Line Switch mode: Described how to close the file

Auto Switch Disabled: No automatic closing of the logging file. This choice is not

recommended as the size of the file can be huge.

On file Size: when the file size reaches the Maximum File Size (in Mo)

On Ping count: when the Maximum Ping Count number is reached

On KP Sign Change: when the KP becomes positive (start of line) or negative (end

of line)

• Automatic Start When starting acquisition: simultaneous start When the KP becomes positive (start of line)

Parameters

If the Line Name is specified to be “Line100” then the file created is “Line100.XTF”. If the

Line Switch Mode parameter is activated, then all files continue to use the generic name

but are appended with “_1”, “_2”, etc. In the case illustrated above, the subsequent files

created would be “Line100_1.XTF”, “Line100_2.XTF” etc.

Step Action

1. In DELPH Seismic Acquisition, select Logging ► Configure Logging Parameters…

The Logging Parameters window opens (see Figure 30).

2. Select the correct directory by clicking on the right of the Logging Folder field.

3. Select the Line Naming Mode in the scrolling menu that opens.

4. Type the file name in the Line Name field.

5. Activate the Line Switch Mode by selecting between On file Size or On Ping Count and by typing in the Maximum File Size or the Maximum Ping Count or On KP Sign Change.

6. You may select none, one or both following options:

• When starting acquisition

• When the KP becomes positive (start of line)

7. Click OK.

The Logging Parameters disappears. The new values are taken into account, the

logging starts if the acquisition has been started. The file datalog.XTF, datalog.idx

, and datalog.PRM are created.

Procedure

IV.3 Configuring the Serial Port

Serial Port parameters can be accessed through the Serial Ports menu of DELPH Seismic

(Serial Ports Configure Serial Ports Parameters…; see Figure 31) or by right-

clicking on the Serial Ports option in the Information window.

For an asynchronous acquisition, this menu is accessible from DELPH Seismic

Acquisition of the slow channel. Once the configuration of the serial ports is validated,

both channels establish the connections with these port parameters.

Figure 31 - Options associated with Serial Ports Menu

A Communication Settings dialog box opens after selecting Configure Serial Ports Parameters… option (see Figure 32). The dialog box consists of a series of three

possible system types with associated PC Port.

Initially, red Xs appear, indicating that no COM Ports have been assigned to the system

(None is the default displayed) or if the COM Port is already used.

Figure 32 - Communication Settings

Access

• Ship Position : The parameter PC Port allows the selection of serial or Ethernet port connected to an

external positioning system (Such a GPS). The characteristics of the selected port can be

defined by clicking on Browse button (see Figure 33).

Figure 33 –Serial Port Settings window

Default protocol is NMEA, the following sentences are valid:

$GPGGA,

$GPGLL.

$GPRMC

• Attitude Settings To set up a COM port for a particular System type, select the desired COM port (PC Port) and choose the communication Protocol corresponding to the different attitude sensors

listed. A user defined protocol (here UDP Parser000) can be also chosen. See appendix B

for more details on the string parser.

• Depth Sensor Settings To set up a COM port for a particular System type, choose a communication Protocol and

select the desired COM port (PC Port).

Figure 34 - IO Server Settings Dialog Box (with Terminal window)

The iXBlue IO-Server program starts automatically when the Serial Ports option in DELPH

Seismic is activated (or connected).

Alternatively, the server may be launched by right clicking on the Serial Ports option in

the Information window.

In either case, parameters for the serial port itself must be set and the port must be turned

ON in the server (i.e., green displayed in the Server Settings dialog box) prior to data

being received in DELPH Seismic.

(see Figure 34) shows COM port 3 turned ON.

If the Settings On option is deactivated the green selection turns red and the Setup button

becomes active ( ). Such serial port parameters as baud rate, stop bits, parity, and

hardware control can be set by selecting the Setup button.

Serial port parameter set in the IO-Server must match those on the device either sending

or receiving the incoming / outgoing serial data.

Port Settings

Once the COM port is turned ON again in IO-Server, the Spy button ( ) can be used

to preview the incoming message strings in the terminal window. If no information strings

appear in this window, check the Setup parameters and the serial cable.

If the Information window is open, then a green box appears around the Serial Ports

option when a successful connection is established (see Figure 35).

Selecting the “+” icon adjacent to this option expands the menu tree to show the various

system types selected and their associated COM ports.

Further information on data being received through the COM port can be accessed by

selecting the “+” icon adjacent to the COM label in the menu tree.

Figure 35 - COM Port Status in Information Window

Sensor Geometry configuration can be accessed through the Serial Ports menu of DELPH

Seismic (Serial Ports Configure Sensor Geometry…; see Figure 31).

The System Geometry window opens after selecting Configure Sensor Geometry option

of the Serial Ports menu. This window can be accessed only during logging.

Figure 36 – Sensor Geometry Window

This window allows the description of the geometry of the sensors used. Each line

corresponds to specific equipment: GPS, Attitude sensor (MRU), the winch for towed

equipment, the seismic source and the acoustic receiver.

Tool tips enables you to define the various offsets and specifically to know the sign

convention used: move your pointer above column title to access its tool tip.

Incoming messages

Serial Ports

Geometry Configuration

For each piece of equipment connected you have to enter:

• Its position relative to a reference position:

X(m): horizontal offset perpendicular to the vessel axle, positive towards starboard

Y(m): horizontal offset parallel to the vessel axle, positive towards the bow

Z(m): vertical offset, positive downward.

• Specifically for the MRU: angular offset as regards the Roll, Pitch, and Yaw

Roll: angular offset of the roll measurement of the attitude sensor, positive when

rolling towards starboard.

Pitch: angular offset of the pitch measurement of the attitude sensor, positive when

pointing upward

Yaw: angular offset of the heading measurement of the attitude sensor, positive

when turning right

• Specifically for the GPS: its latency and the angular yaw offset Latency: receive time-out (age of the measurement)

Yaw: angular offset of the heading measurement of the GPS, positive when turning

• For the seismic source and for the receiver, you also have to define its mounting

configuration: Hull Mounted or Towed. If towed, no position offsets to define.

The defined values are then recorded into the DELPHSeismic.geo file in DELPH default

data folder. This file keeps track of the changes in the geometry setup and must be

transferred with the logged data for post-processing in DELPH Seismic Interpretation.

IV.4 Configuring the Plotting

Plotter Parameters can be accessed through the Plotter menu of DELPH Seismic (see

Figure 37). For an asynchronous acquisition, both channels share the same plotter so only

one channel can print the data of the stored file at once.

Two configuration options exist: one for printing parameters (Configure Printing Parameters…) and one for plotter parameters (Configure Plotter Parameters…).

Figure 37 - Options Associated with Plotter Menu

Once you have chosen the parameters. Select Plotter to activate the plotting.

They relate to the type and Port of the Plotter (see Figure 38):

Figure 38 - Plotter Specifications

They relate to the range and appearance of the data to be printed. Three tabs compose

the Plotting Specifications dialog box (see Figure 39):

• Range tab: the channel and section of trace record to be plotted may be specified.

• Labels tab: choices are available for printing Shot Points (Trace Number, Date, KP,

Position and Time) or the Time Scale. Shot numbers are printed across the bottom of

the record whereas the time scale is printed across the record. The frequency at which

these annotations are shown may be specified based on number of shots. • Appearance tab: the options are available for Direct or Reverse plotting as well as

the Lookup Table to apply and the Contrast level. Direct or Reverse plotting allows all

printed sections to be oriented in the same direction.

The Lookup Table and Contrast level affects the lightness or darkness of the printed

record.

Rectification may also be applied such that only the Positive or Negative portion of

the wavelet is applied to the lookup table and printed. If the Rectified option is

selected, the negative portion of the wavelet is inverted and applied to the lookup table.

Parameters

Printing parameters

Figure 39 - Printing Options - Range – Labels- Appearance tabs

IV.5 DELPH Acquisition Network Remoting

DELPH Acquisition software can be remotely controlled by third party software.

Commands can be sent and status retrieved using a local or remote UDP Ethernet

connection. Protocol information is available on request at delph@ixblue.com. Control

from a third party software using UDP communication:

• Application

• Acquisition

• Storage

• Status

Step Action

1. Select Application > Remoting menu.

2. Activate the remoting by selecting the check box Enable DELPH UDP remoting.

3. Enter the IP Adress.

4. Enter the Port Number – Receive.

5. Enter the Port Number – Transmit.

6. Click on OK to validate your choice.

Procedure

V DELPH SEISMIC ACQUISITION IN REAL-TIME MODE

Two goals in developing this new generation of seismic / sub-bottom acquisition software

were to simplify the setup procedures for logging data and to present a more intuitive

display for quality control of the data.

In DELPH Seismic, dedicated servers have been written for each supported seismic

device type. Hence only those parameters directly related to the seismic or sub-bottom

profiler system are shown to the user.

In addition, the logging of data is completely separated from the processing and

interpretation of data. The processing tools supported in the data logger are

• A band-pass filter whose primary purpose is to eliminate low and high frequency noise

from the displayed data (i.e., no processing is applied to the logged raw data).

• Automatic gain (AutoGain button located beneath the Profile and Trace windows)

and/or linear one (sliding bar located beneath the Profile and Trace windows) to

increase the signal gain on the displayed data.

Large text windows inform the user about the state of the incoming data streams (arrival of

navigation and data), whether signal strength is too high or too low, whether logging is

active, and how much disk space remains.

The end result is a highly stable, easy-to-use, and easy-to-understand acquisition

package. The following sections provide an overview of the data logger as used in

acquisition mode, including the basic procedures for setting up the software for a survey.

In very general terms, any seismic survey consists in three basic tasks:

• Receiving Navigation data.

• Transmitting an acoustic pulse into the water (the Source).

• Receiving the signals reflected back (the Receiver).

All three tasks need to be implemented in DELPH Seismic, and all three should be tested

prior to starting a survey. The following sections describe the setup and testing of each

Server

Always informed

Main tasks

V.1 Receiving Navigation Data

DELPH Seismic can accept Navigation data from any available GPS receiver through an

RS232 port in ASCII format. The most common protocol from a GPS receiver is

NMEA0183 format, typically at a baud rate of 4800.

A cross-over (null modem) serial cable should be used to connect the GPS device with

any free COM port on the acquisition computer.

The Navigation system type in the Serial Port Setup dialog box of DELPH Seismic has a

predefined NMEA0183 option, and hence you should only need to check that the correct

baud rate is set for the relevant COM port in the IO-Server application.

The navigation can also be received through an Ethernet port. In this case, the

communication is realized in UDP (Datagram) mode for data with a format of NMEA type.

V.2 Transmitting an Acoustic Pulse

A number of different methods exist for generating an acoustic pulse depending on the

Source in use. However, there are only two ways for DELPH Seismic physically

connected to the Source to supply a trigger: • Via the “Trigger out” or “Trigger In” BNC connector. Typical sources connected by this

manner include air guns, sparkers, and boomers.

• Via an Ethernet connection. In this case the connection is usually bi-directional in that

triggering information and control messages go out and acoustic data come in.

• Examples of this type include all chirp-type systems.

For the first group of equipment, the only requirement is a suitable BNC cable to connect

to the Trigger Output.

Prior to beginning the survey a decision must be made as to whether DELPH Seismic will

operate in “Slave” mode or “Master” mode: • In “Slave” mode the external system runs at a fixed rate, sending triggers both to

DELPH Seismic and the Source. The trigger to DELPH Seismic is via the “Trigger In”

connector on the trigger cable.

• In “Master” mode the trigger rate is set from within the DELPH Seismic software and the trigger is sent to the Source via the “Trigger Out” BNC connector on the trigger

cable. Both of these connectors are designed to be compatible with Positive TTL.

For the second group, a Trigger is not required. However, some basic knowledge of

network connections is necessary. The TCP/IP protocol is used on all these systems and

the recording system will require a NIC (Network Interface Card) correctly configured for

this protocol with an appropriate IP address assigned. For all Digital systems the data pass through an iXBlue server application that has default

IP address assigned. This IP address is designed to match the default IP address of the

seismic device, although if data reception is not occurring this should be checked to be

Analog Systems

Digital Systems

As an example, the Edgetech FSSB system ships with an IP address of 192.10.0.100.

When the FSSB server starts, it will attempt to connect to this IP address. From a user’s

standpoint, all that should be necessary is to set the IP address of the NIC in the recording

system to be in the same “address range” (e.g., 192.10.0.101). Access to the acquisition

parameters is possible through the menu Acquisition►Configure Acquisition Parameters. IP addresses are unique. No two identical addresses can exist on the same

network. To be in the same “address range”, the first three groups of numbers must be the

same and the third number MUST be different

V.3 Receiving Seismic Data

In the case of an Analog system all that should be necessary is to connect the output from

the hydrophone streamer or preamplifier (if used) to the Signal input of the Acquisition

board with a suitable BNC cable.

In the case of a Digital system the data are transferred via the network connection as

discussed above.

V.4 Testing Serial Port

Navigation and auxiliary data is received in DELPH Acquisition through serial or Ethernet

ports. All connections are established through DELPH Acquisition IO-Server. Like an

acquisition server that is used to receive the sensor data, IO-Server connects to the

necessary serial and Ethernet ports and provides DELPH Acquisition with the received

data. This application incorporates a method of viewing the raw data as it appears at the

port (the Spy Data option).

If you do not see data in IO-Server using the Spy Data option, an independent method of

testing serial or Ethernet port communication is to use the HyperTerminal program that

ships with all Windows operating systems: (Programs Accessories Communications HyperTerminal).

The HyperTerminal test procedures is described here-below:

Procedure

Step Action

1. Close all active applications including IO Server (check for the “connector” icon in the

System Taskbar next to the clock)

2. Determine the baud rate of the signal sent from the GPS. For example, for a GPS

receiver outputting NMEA0183, the baud rate is 4800 or 9600.

3. Connect the GPS receiver to a free serial port on the acquisition system using a cross-

over cable (or null modem).

4. Launch HyperTerminal. The Connection Description dialog box opens.

5. Enter a name for this connection, and click OK.

The Connect To dialog box opens (if this is the first time HyperTerminal has been run

you may need to enter an area code at this point).

6. Near the bottom of the dialog box, use the Connect Using pull down menu to select the

correct Com Port; then click OK

7. Use the COM Properties dialog box to select the correct baud rate, set the Flow Control option to None and then click OK

If data are present at the serial port you see them scrolling down the screen at this point.

If no data are shown in HyperTerminal, the problem probably lies with the GPS receiver

or the serial cable.

8. If data are shown in HyperTerminal, exit the application and setup the serial port for

Navigation (NMEA option) in DELPH Seismic then check that data are being received by

IO Server using the Spy Data option .

V.5 Testing Acquisition

As described in System Setup three items should be tested:

• Navigation data.

• Transmission of an acoustic pulse into the water.

• Reception of the reflected signals.

V.5.1 NAVIGATION

When the instructions regarding Serial Port Setup have been followed (see section V.4),

perform the following procedure to test the navigation.

Step Action

1. Select the relevant COM port, or select an Ethernet socket and specify the relevant port

number.

2. Click the serial port Connect icon.

The Navigation Indicator turns from red to green.

The time display here should reflect the time being sent by the navigation system. Note

that the time of the PC’s internal clock will automatically be set to this time.

THIS TEST INVOLVES TRIGGERING THE ACOUSTIC SOURCE; SOME SOURCES SHOULD NEVER BE

FIRED WHEN THE SENSOR IS NOT IN THE WATER. CHECK THE SEISMIC EQUIPMENT MANUAL

BEFORE PROCEEDING!!

Procedure

V.5.2 ACOUSTIC PULSE TRANSMISSION

If DELPH Seismic is generating the trigger (Master mode) then the output trigger pulse

will be present as soon as DELPH Seismic is put into Acquisition mode.

If DELPH Seismic is configured in Slave mode then the trigger has to be generated by

some external device. In this case, as soon as DELPH Seismic is put into Acquisition

mode received signals will begin scrolling across the Profile window and updates will be

seen in the Trace window.

WHEN OPERATING IN SLAVE MODE MAKE SURE THAT DELPH SEISMIC IS TRIGGERING AT THE

CORRECT RATE. FOR EXAMPLE, IF THE SHOOTING RATE SET BY THE EXTERNAL DEVICE IS

500MSEC MAKE SURE THAT DELPH SEISMIC IS ACTUALLY UPDATING TWICE PER SECOND!

V.5.3 REFLECTED SIGNALS RECEPTION

With DELPH Seismic launched,

Step Action

1. Click the Acquisition button.

The Acquisition Indicator turns Green, and the displayed shot number starts updating at

the triggering rate.

2. Check that signals are present in the Trace and Profile window:

• Either rub the transducer if the receiver is a Chirp system.

• Or tap the hydrophones if the receiver is a streamer.

Some activity should be visible in the Profile and Trace windows indicating that the

signals are reaching DELPH Seismic.

If the seismic transducers or hydrophones are on deck then it will be necessary to

increase the amplitude of the signal through the “Zoom” slider bar located beneath the

Profile and Trace windows (see Figure 40). Sliding this bar to the right increases the

signal gain on the displayed data.

Figure 40- Amplitude Zoom Slider Bar

V.6 Testing Logging

Logging is the writing of the data to a file on disk. Two items should be checked prior to

the start of a survey:

• The data are being written.

• The logged file can be replayed.

Step Action

1. Left-click on the Logging button

The Logging status indicator beneath the Profile window turns from Not Started to

Logging, and a progress bar is displayed showing how much disc space is remaining on

the current disk drive.

If a problem occurs with the writing of data to disk then the Logging indicator will turn

Yellow and then Red.

After logging some data as described above, perform the following test.

Step Action

1. Left-click on the Logging button again to stop writing data to disk (thus closing the file).

2. Select Playback option in the Application menu to change DELPH Seismic from

Acquisition mode to Playback mode.

The Open window appears.

3. Select the file you have just recorded in the Open window and click Open.

If the Open window does not appear, select the Open button and choose the file you

have just recorded.

The replay begins. During replay make sure that the data displayed look correct, and

that navigation data have been registered with the recorded file.

Procedure

V.7 Plotting Data The data from one channel can be plotted in real time during acquisition. See the

description of the plotting parameters in section IV.4.

Step Action

1. Select Plotter > Configure Plotting Parameters.

2. Select the Seismic Range tab if it is not already selected. Select the Channel to Plot if it is appropriate. Select the range between Full Scan Plot Range and User Defined Plot Range with its Start Range and End Range values.

3. Select the Labels tab. Choose or not to plot the Trace Number & Position as well as

the Time Scale. Choose for each of these the appropriate Plotting Rate.

4. Select the Appearance tab. Choose between Direct Plotting and Reverse Plotting.

Select a Lookup Table in the corresponding scrolling menu. Choose to Reverse Colors

or not. Type in the Contrast level. Select the Rectification in the scrolling menu.

5. Click on OK to validate the plotting configuration.

6. Select Plotter > Configure Plotter Parameters

7. Select your plotter in the Plotter Identification scrolling list. Click on OK.

8. Select Plotter > Plotter to start the plotting of the data being acquired.

Procedure

VI DELPH SEISMIC ACQUISITION IN PLAYBACK MODE

To enter playback mode click Application Playback Open, and select a file.

The majority of the windows components during Playback are the same as those

described in the Record Data section of the manual. The most obvious difference is the

new icons in the Toolbar allowing control over the playback of data: playback direction,

jumping to the start and end of the file, pausing playback, or stepping through a file (see

Figure 41).

Figure 41- DELPH Seismic in Playback Mode

Procedure

Step Action

1. Switch to playback mode. Select the menu Application ► Playback.

The toolbar and menus are replaced by the replay toolbar and menus.

2. Click on , browse and select the data file you want to replay.

The replay starts.

VII MONITORING DISPLAY

As discussed in the preceding sections, it is important to test all equipment prior to

embarking on a survey. Of equal importance to the success of a survey is the monitoring

of data acquisition while operations are ongoing.

The following sections provide some general tips on what should be monitored during the

course of a survey.

VII.1 Basic Monitoring

During data acquisition all the system status indicators (i.e., Acquisition, Logging and

Navigation) should remain Green unless there is a problem. Anytime one of them turns Yellow or Red, the cause should be investigated before continuing the survey.

VII.2 Data Quality

At the start of the survey some adjustments to the frequency filter (see Figure 43) and

Amplitude scaling (Zoom factor) are necessary to obtain a reasonably good display of the

data in the Profile and Trace windows.

While conditions such as water depth and bottom type cause gradual changes in the way

the data appear in the Profile display, any sudden gain changes or increases in noise

should be investigated before continuing the survey. If at all possible, a further check of data quality and integrity should be made either with

DELPH Seismic Interpretation or a third-party processing package.

As no advanced processing is available through the data logger (i.e., AGC decremental,

TVG, stacking, deconvolution) it is prudent to make sure that the logged data, after

additional filters, etc. applied, will be of adequate quality to address the survey objectives.

The only available processing tasks in DELPH Acquisition are:

• An exponential AGC for amplifying the received signal

• Band pass filters that can be used to filter low-frequency and high-frequency noises.

The retained bandwidth can be tuned from in a dedicated Filters panel.

Both the Automatic Gain and the Filter can be activated and monitored from the

commands below:

Figure 42 – Filter

THE AVAILABLE PROCESSING APPLIES TO THE DISPLAY DATA ONLY. ONLY RAW DATA AS RECEIVED

FROM THE SENSOR IS LOGGED FOR FURTHER ADVANCED PROCESSING.

Figure 43- Filters

iXBlue CONTACT - SUPPORT 24/7 CUSTOMER SUPPORT HELPLINE

FOR NON-EMERGENCY SUPPORT:

support@ixblue.com

FOR GENUINE EMERGENCIES ONLY:

North America / NORAM +1 888-600-7573 Extension 2

Europe Middle-East Africa Latin-America / EMEA-LATAM +33 1 30 08 98 98 Asia Pacific / APAC +65 6747 7027

iXBlue CONTACT - SALES

North America / NORAM +1 888-600-7573 iXBlue Inc Boston US 11 Erie Drive, Natick, MA 01760, United States Office: Houston, USA

Europe Middle-East Africa Latin-America / EMEA-LATAM +33 1 30 08 88 88 iXBlue SAS Marly France 52 avenue de l’Europe Marly le Roi, 78160, France Offices: Dubai, Germany, Netherlands, Norway, UK, Italy

Asia Pacific / APAC +65 6747 4912 iXBlue Pte Limited Singapore 15A Changi Business Park Central 1#04-02 Eightrium Singapore 486035 Offices: Australia, China, India

Appendices

A. SHORTCUT KEYS / KEYBOARD EQUIVALENT

The table lists the keyboard equivalents for DELPH Seismic Acquisition for various

execution modes:

For the WINDOWS clipboard

Shortcut keys To…

[Ctrl]+C Copy the current selection into the clipboard

[Ctrl]+V Paste the clipboard content

[Ctrl]+X Copy the current selection and suppress it.

For Windowing function

Shortcut keys To…

[Alt]+R Horizontal allocation of the windows when several data windows are

present.

For Playback mode only

Shortcut keys To…

[F2] Select and open a data file to replay

[F3] Close the data file you are replaying

[F5] Locate the replay of a data file at the first ping.

[F7] or [SPACE] Pause/start the replay of the current data file

[F8] or [→] Activate the replay of the data file for increasing ping

[F10] Close the current data file and then offer to select a new file

[↓] Read the previous ping

[↑] Read the next ping

For Real time mode only

Shortcut keys To…

[F6] To start/end the record of a data file.

For Chartview

Shortcut keys To…

[F9] Modify the current mode:

Either end of the data file record and stop of the acquisition, replay mode

is activated and a file selection for the replay is offered

Or close the current data file under replay mode and then activate the

real time mode.

B. USER DEFINED PROTOCOL

This option allows the processing of any ASCII string coming in an unknown format from a

external sensor. The User Defined Protocol Editor allows you to affect the different

parameters fields constituting this string to the recognized DELPH parameters. The idea is

to define:

• which characters are the field delimiters

• which characters should be considered as numeric

• which pattern begins the string

• in which format and assignment (parameter meaning) each field should be read

• if there is a final pattern

The application builds a file with a PRS extension that contains the rules allowing the

parsing of the string.

To be valid the string must contain a beginning pattern and field delimiters.

Step Action

1. Launch UDPEditor.exe that is present in the DELPH Acquisition folder typically:

C:\IXBLUE\DELPH\DELPH Acquisition

2. Click on Edit to open the Editor and type the string that you want to parse in the Sample and Test String field:

For example we consider the following string:

Procedure

Step Action

3. Enter the characters that are delimiting the fields in the Delimiter field on the right side

of the window. All the characters that are not numeric must also be entered in this field.

For our example “,” should be entered as a delimiter.

4. Enter the numeric characters in the Numeric field.

For our example “.” should be entered in the Numeric field.

5. Right click on the PARSER DESCRIPTION & TEST REPORT and select New Field.

A new line appears in the list:

6. Left click on the line that you have just created to select it.

7. Left click in front of Format and choose the format in the drop menu that appears.

The format of the first field should be PATTERN. A field appears with the string “Pattern

to check”. While the string is not correct the status is “ERROR” and the Status LED

remains red.

8. In the Pattern field, enter the first field (pattern) of the string that you want to parse.

For our example enters “$GPHDT” The Status LED becomes green.

Step Action

9. Repeat steps 6, 7, 8 for each field of the string. Select also the Assignment for each

field.

10. The last field, in our example, “<CR><LF>” is only composed of delimiters. Insert “<CR><LF>” in the Delimiter field.

Create a new line in the list and let it to VOID (the Carriage Return (CR) and Line Feed

(LF) have no format).

11. Click on Save and save the file with a PRS extension. Make sure you save it in the

DELPH Acquisition directory. Typically C:\iXBlue\DELPH\DELPH Acquisition.

C. DELPH ANALOG ACQUISITION UNIT

C.1 System Interfacing DELPH Analog Acquisition Unit – DAAU - is a topside box able to acquire one or multiple

analog signal channels and serial ports and send all data to DELPH Acquisition software

over an Ethernet link.

Overview

Technology

• 24 bits Analogic Acquisition

• Load or Voltage entry

• Ethernet communication

• Chirp configurable

• Synchro in & Synchro out

• Easy to carry

DELPH Analog Acquisition Unit provides a very accurate digitization stage for analog

seismic systems. It can acquire from one to eight synchronous signal channels and be the

master synchronizer or work in slave mode.

DELPH Analog Acquisition Unit is a 19” 3U rack that integrates multiple components:

• A set of communication and analog conversion boards

• A RS232 to Ethernet converter

• The AC/DC power supply

• An Ethernet switch

ACQUISITION

COMGEN

RS232 Com

Switch Ethernet

CHANNEL 1

CHIRP SYNCHRO (in & out)

ETHERNET

The acquisition unit includes an iXBlue COMGEN board and one or several ADC

acquisition boards. Each signal channel is digitized with a bandwidth of 50 kHz and a

maximal dynamic input of 110dB. The COMGEN board retrieves the data from each

acquisition board, converts and sends them over an Ethernet link. The COMGEN board

also manages the internal and external synchronizations. When used with an iXBlue

ECHOES Sub-Bottom Profiler, a chirp signal input is also available to create the

waveforms that are forwarded to the power amplifier.

The embedded RS232/Ethernet converter offers two serial ports that can be used to

acquire positioning data, bathymetry or other sensors. When acquiring data from a laptop

or computer, no additional RS232 board is required then.

DELPH Analog Acquisition Unit integrates a 5 ports 10/100BaseT Ethernet switch that

links the COMGEN board and serial ports to the main RJ45 Ethernet port that is available

on the back panel.

The AC/DC power supply converts 220VAC/50Hz to the various components in the

acquisition unit.

C.2 Power DELPH Acquisition Unit is powered by a standard 220V AC power cable fitted in the rear-

panel power plug.

The system is powered on using the switch from the front panel. When starting up, air

cooling fans will start, a system beep can be heard and red lights in the power switch and

on the rear panel will light on.

C.3 Ethernet Connection DELPH Analog Acquisition Unit – DAAU - connects to the acquisition computer using an

Ethernet cable. A RJ45 connector is available on the back-panel.

DELPH Analog Acquisition Unit IP configuration

IP Address: 20.0.0.1

Subnet mask: 255.255.255.0

The topside computer running DELPH Acquisition software must be configured as follow

to connect to the DAAU:

DELPH Topside computer

IP Address: 20.0.0.2 Subnet mask: 255.255.255.0

Description

Step Action

1. Access Windows network adapters list. Edit the properties of the adapter corresponding

to the Local Area Connection physically linked to the DAAU.

2. In the adapter properties, select TCP/IP v4 protocol and edit its properties.

3. Configure the IP address manually to the above described settings.

Procedure

C.4 Analog signal I/O Depending on models, DELPH Analog Acquisition Unit offers 4 to 24 channels signal

inputs on the rear panel, and the necessary trigger links. Usual female BNC connectors

are used from/to the seismic equipment.

A number of analog signal input connectors are available and numbered. The 1st connector – Channel 1 - corresponds to the 1st acquire channel and so on.

BNC connectors coming from the pre-amplifier of the seismic system will connect to them.

When using DELPH software in master mode, a synchronization 5V. TTL signal is sent

from the Sync. Out BNC connector. This output typically connects to the seismic source

power amplifier.

WHEN DELPH SEISMIC ACQUISITION IS STARTED AND CONFIGURED AS THE MASTER TRIGGER, IT

IS HIGHLY RECOMMENDED NOT TO PLUG THE TRIGGER CABLE TO THE AMPLIFIER BEFORE THE

SEISMIC SOURCE IS IN THE WATER.

When using DELPH software in slave mode, the synchronization 5V. TTL signal will be

received on the Sync. In BNC connector.

DELPH Analog Acquisition Unit can be used as a topside for certain iXBlue ECHOES

Sub-Bottom Profilers. The chirp waveform is sent from the Chirp BNC connector and

transmitted to the power amplifier.

Analog signal input

Trigger output

Trigger input

Chirp Signal

C.5 Serial Ports DELPH Analog Acquisition Unit embeds two Ethernet serial ports, allowing the acquisition

of two external devices like a GPS and a Single-Beam Echo-sounder. These serial ports

are available from the topside computer running DELPH Acquisition software like usual

ports.

A few configuration steps on the topside computer are necessary to map the serial ports

physically available on the DAAU to logical serial ports into it.

Step Action

1. Install MOXA NPort Administration Suite software (also available on www.moxa.com).

Follow all default settings from the software installer.

2. Launch MOXA NPort Administration software

Procedure

Step Action

3. Use the Search command to locate the MOXA serial ports on DELPH Analog Acquisition

Unit. Once found, the remote device is added in the Configuration panel.

4. Switch to the COM Mapping panel, press the Add command from the toolbar and check

the serial ports adapter to add.

Step Action

5. The new couple of serial ports is added and affected COM numbers

C.6 Performance & Specifications

General characteristics

Numerical interface to the laptop and

DELPH Acquisition Software

1 Ethernet Port 10/100Mb (RJ45 connector)

Integrated Serial Port 2 serial ports RS232 configurable (DB9 connector)

Internal Synchronization Configurable shooting rate from DELPH software

TTL front configurable (BNC connector)

External Synchronization TTL front configurable (BNC connector)

Analog Output 1 Analog Ouput (BNC connector)

Anlog Input 1 Analog Input (BNC connector)

Power Supply 220VAC/50Hz

Serial Interface

Number of ports 2

Level RS232

Baud rate 50 bps - 921.6 kbps

Data bits 5, 6, 7, 8

Stop bits 1, 1.5, 2

Parity None, Even, Odd, Space, Mark

Flow Control RTS/CTS and DTR/DSR (RS-232 only), XON/XOFF

Serial Line Protection 15 KV ESD protection for all signals

2 KV isolation protection (NPort 5430I/5450I/5450I-T)

Analog Output

Ouput channel number 1

Resolution 16 bits

Sampling Frequency 32 kHz

Output level +-5 Volts

Analog Input

Channel number 1

Resolution 24 bits , 21 bits efficient

Sampling Frequency 1, 2, 4, 8, 16, 32, 64, 128 kHz

Dynamic 118 dB

Voltage pre-amplifier config Input level : +-10 V

Bandwidth :

Filtered mode : 157Hz – 16 kHz band

Unfiltered mode : DC - 50kHz band

Noise : -113 dBVRMS in the RTO band

Electronics specifications

Interface box

Width 19“

Height 3U

Depth 350 (with handles)

Global Weight (kg) 5

Width (cm) 55.88

Depth (cm) 35.56

Height (cm) 23.49

Global Weight (kg) 8

Workstation 110-240 Vac, 47-63 Hz, 1.6 A

Interface box 220 Vac, 47-63 Hz, 4 A

Warranty period: 1 year

Preventive maintenance None

Storage Specifications

Workstation -10 to 35°C

Interface box -10 to 35°C

Operational Specifications

Workstation < 25°C

Interface box < 25°C

Mechanical Specifications

Input Power supply

Reliability

Environment

C.7 Maintenance - Fuse Replacement When DELPH Analog Acquisition Unit cannot be powered on.

Cautions and hazards

Requirements 2 fuses: 250V 6A TD (5x20 model)

Step Action

1. Disconnect the power cable.

2. Open the AC input connector.

3. Remove all the fuses.

4. Change the fuses.

5. Close the AC input connector.

Procedure

D. DELPH ANALOG ACQUISITION WORKSTATION

Use this procedure when you are installing the DELPH Seismic hardware in a third party

or in case of a re-installation.

D.1 Description The DELPH Seismic hardware kit contains two boards:

• An acquisition board PCI NI 4472 or NI 4474 from National Instruments;

• A counter/timer board PCI-CTR05 from Measurement Computing (used to control

trigger/timing).

DELPH Seismic versions 1.3.0.0 and higher support this type of hardware.

Both boards use the computer’s PCI bus, the NI 4472 or NI 4474 board is a bus master

device and should be installed in a bus master capable PCI slot, these are the slots

closest to the CPU (usually slots 1 and 2). The NI 4472 or NI 4474 board will NOT work on

the other side of a PCI bridge.

The CTR05 board can be installed in any free PCI slot.

Board locations

D.2 Back Panel Connectors The picture below shows the connections from the DELPH Seismic Workstation to

external systems.

Figure 44 - WorkStation Back Panel Connectors

The picture below (Figure 45) shows the trigger connections from the CTR-05 board

(TRIG 1) to the seismic NI4472 or NI4474 board (CH0) and to the external seismic device.

The Trigger output has a 5V/TTL compatibility and a duration of 2 millisecond.

Figure 45 – Trigger Cable

The Analog signal from the seismic device is connected to the Seismic board CH1 with

the supplied SMB/BNC cable.

D.3 Installing and Configuring the Trigger Board (CTR05) The following screen shots are from Windows 2000, they might be different with Windows

XP and Vista.

It is important that the drivers are installed prior to the installation of the electronic boards.

• Installing the Drivers

Step Action

1. Insert the Measurement Computing CD-ROM into the CD-ROM drive.

2. If the auto-run feature is not enabled on your system, locate and run the program called

INSTALL.EXE.

The following installation dialog box opens:

Procedure

Step Action

3. Click Install InstaCal.

4. Follow all defaults until the installation is completed.

The final question is: Do you want to restart your computer now?

5. Answer No and exit the installation.

6. Select Shutdown option in the Start menu to close Windows, once shutdown is

completed, power the computer off (if necessary).

Figure 46 - Counter Timer CTR05 board package

• Installing the CTR05 Board in the System

Step Action

1. Power off the computer and disconnect the mains cord.

2. Install the CTR05 board in a free PCI slot, (note the comments above regarding location

of the board).

3. Connect the mains cord.

4. Restart the computer.

After a short pause the following message will appear

Indicating that Windows has detected the newly installed board.

5. Click Next. The following screen appears:

6. Check the box Search for the best driver in these locations, and click Next.

7. Check Specify a location and click Next.

8. Enter the location and filename C:\MCC\CBI95.INF then click Next.

9. Click Finish.

• Configuring the Counter Timer Board

Step Action

1. Select Start>Programs>Measurement Computing>InstaCal The following dialog box opens:

2. Click OK.

3. From the Install menu select Remove All option.

4. From the File menu select Exit option.

5. Re-start InstaCal (see step 1.).

6. Click OK to the P&P board detection.

You should see the following:

Note that the board is now enumerated as Bd#0 – this is correct.

Do not exit yet from the InstaCal program.

Procedure

• Setting the Correct Clock Speed

Procedure

Step Action

1. In InstaCal program, from the Install menu select Configure.

The board Configuration window opens.

2. In the Clock Speed options select 5 Mhz.

3. Click OK.

4. Close InstaCal.

D.4 Installing and Configuring the Analog Converter Board (NI447x) The following screen shots are from Windows 2000, they might be different with Windows

XP and Vista.

• Installing the Drivers It is important that the drivers are loaded before the board is installed in the system, the

drivers can be found on the National Instruments CD-ROM. (see Figure 47). The following

screen shots are valid with a 7.4.4 version of NI-DAQ and can be slightly different for

newer versions.

Figure 47 - Acquisition NI 4472 (left) and NI 4474 (right) board package

Step Action

1. Insert the National Instruments CD-ROM into the CD-ROM drive.

2. If the auto-run feature is not enabled on your system, locate and run the program called

Setup.exe from the CD.

The following window opens:

3. Click on Install Traditional NI-DAQ.

The following window displays :

4. Once the initialization is done, click Next then follow the instructions.

Procedure

Step Action

5. Click Next until the following window appears:

6. By default the following modules are selected:

• Traditional NI-DAQ 7.4.4 (Legacy)

• NI-DAQ OPC Server, Microsoft Visual C Support

• NI Measurement & Automation Explorer 4.2

Click Next then follow the instructions.

The final window displayed is

7. Click Finish.

Step Action

8. Click Restart.

After reboot, the driver is loaded in your system.

• Installing the Board in the System

The NI 4472 or 4474 board requires a Bus Master compatible PCI slot:

• On a system with a passive backplane and plug-in CPU these will be the 2 PCI slots

next to the CPU card.

• On a system with an active backplane the PCI slots are numbered, the card should

work in either PCI1 or PCI2

Step Action

1. Check that the power is OFF and that the mains cord is disconnected.

2. Install the NI 4472 or 4474 board in a PCI slot.

3. Connect the mains and restart the computer.

The following message appears:

4. Click Next.

5. Click Finish.

Procedure

D.5 Analog Signal and Trigger Interfaces

The synchronous and asynchronous acquisition modes are described below with a NI

4472 board. The connections are the same with a NI 4474 board.

The picture below (see Figure 48) shows the Trigger connections from the CTR-05 board

(TRIG CH0) to the seismic NI4472 board (CH0) and to the external seismic device.

The Trigger 1 output has a 5 V/TTL compatibility and a duration of 2 millisecond.

The Analog signal from the seismic device is connected to the Seismic board CH1 with

the supplied SMB/BNC cable.

Figure 48 - Trigger and Input cable

Synchronous acquisition

The configuration described for the synchronous acquisition above, applies to the slow

channel.

The figure below (see Figure 48) shows the Trigger connections from the CTR-05 board

to the seismic NI4472 board and to the external seismic device both for the slow and the

fast channels.

Figure 49 – Connections between the CTR-O5 and the NI 4472 boards for asynchronous acquisition

Asynchronous Acquisition

E. ECHOES REMOTE CONTROL ADVANCED CONFIGURATION

(LEGACY)

E.1 Customizing the Default Acquisition Mode By default, DELPH Seismic Acquisition offers three different acquisition modes for the

amplifier:

• Shallow Water

• Medium Water

• Deep Water

For each mode you can define your own Pre-Amplication Gain and Amplication Gain

values. Possible values are:

• For Pre-Amplification Gain: 1, 10, 100, 1000.

• For Amplification Gain: 1, 2, 4, 8, 16, 32, 64, 128, 256.

To do this, you need to modify the default values recorded in the

EchoesRemoteCtrl.ini file (see Figure 50).

Figure 50 – EchoesRemoteCtrl.ini default file content

The parameters of this file are then used to generate the Echoes Remote

Control.txt file containing the description of the command frames sent to the amplifier

(see Figure 51 for an example of this file).

Figure 51 – Echoes Remote Control.txt file

Step Action

1. Close DELPH Seismic Acquisition if opened.

2. Suppress Echoes Remote Control.txt file.

3. Edit EchoesRemotreCtrl.ini file and change the pre-Amplification and Amplification

values of the default Acquisition mode by your own value.

4. Launch DELPH Seismic Acquisition

Select NI Chirp Server in Acquisition►Select a Device Type

Click the Settings button and select Echoes Amplifier Control

The Echoes Remote Controller window opens, the Receive Amplifier tab displays your

own defined values for the Pre-Amplification Gain and Amplification Gain fields of the

default Shallow Water, Medium Water and Deep Water modes.

This is an example where the pre-Amplification Gain of the Deep Water is set to 10 and

the Amplification Gain to 32.

Procedure

E.2 Defining Additional Acquisition Mode You may define additional configurations you want to see displayed under Receive Amplifier tab of the Echoes Remote Controller window.

To do so you have to add lines between the markups <receive> and </receive> in the

Echoes Remote Control.txt file.

The Figure 52 shows the case where a new acquisition mode named ‘MyConfig’ is added

in the Echoes Remote Control.txt file.

Figure 52 – EchoesRemoteCtrl.ini file content with a user defined ‘MyConfig’ acquisition mode

The following procedure explains how to get the frames modifying the Pre-Amplication

Gain and Amplification Gain for the MyConfig acquisition mode.

Step Action

1. In DELPH Seismic Acquisition, open the serial port connection.

2. Choose Configure ► Echoes Amplifier Control … and select the Receive Amplifier tab:

3. In Acquisition Mode box, choose User Defined and then set the desired Pre-Amplification Gain and Amplification Gain.

4. Click on Send then select the content of the TX box in the clipboard.

Procedure

Step Action

5. Using the Copy option of the contextual menu open with the right mouse button, copy

the content of the TX box in the clipboard.

It is the frame to define the Pre-Amplification Gain and Amplifications Gain values.

6. Close DELPH Seismic Acquisition then edit Echoes Remote Control.txt file

create ‘MyConfig’ before the </receive> markup.

7. Paste the clipboard content in front of the MyConfig line:

8. At next Echoes server start, if the defined configuration is valid, it appears in the Echoes

Remote Controller window:

DELPH Seismic Acquisition - Smart Sea School...DELPH Seismic Acquisition– User Guide . Text Usage...

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