Upload
galya
View
54
Download
0
Tags:
Embed Size (px)
DESCRIPTION
F2E Convert On Demand. Team Members: Damola Alabi Andrew Hillocks Montaque Jones Jasmine Little. Background. - PowerPoint PPT Presentation
Citation preview
F2EConvert On DemandTeam Members:Damola AlabiAndrew HillocksMontaque JonesJasmine Little
Background Modern radar systems utilize digital signal
processing. The radar receivers contain high speed A/D converters at the end of the analog signal path. The digital data is transmitted by fiber to the signal processor. Data rates on these signal paths are extremely high (6+ Gb/sec).
Northrop Grumman would prefer
to not use expensive MIL-SPEC hardware simply to test receivers in the factory.
Problem We need to build a test receiver system that can
handle data at high rates but is more cost effective than the expensive MIL-SPEC hardware that is in use.
In a nutshell, we need to build a cost effective system that will help Northrop Grumman test receivers in the factory.
The main question asked is: How can we design and test this on demand converter
Design Requirements Overall Function:
The unit should receive data, convert it back into 32 bit words, buffer a large quantity of these words, and then upon request transfer the block over a lan interface to a requesting computer. The data comes in as serial data encoded in the Xilinx
Aurora 64B/66B protocol. Real time conversion from fiber to lan is not required.
Compliance IEEE electrical standard 802.3 Fibre channel physical and signaling standard ANSI X3.230-1994
ISO 14165-1
Aurora Interface Aurora is a scalable, lightweight, link-
layer protocol that is used to move data across point-to-point serial links.
It is an open protocol and is free of charge.
Why use the Aurora? Very efficient low-latency protocol that
uses the least possible amount of logic Aurora increases bandwidth through
bonded lanes. Aurora also requires little time to
integrate in to existing user designs.
Current Status of Art Currently there are no commercial
products that have the ability to do on demand conversations.
The only products available are MIL-SPEC hardware. This hardware is very expensive and is not for commercial sale.
Initial Solution Approach The basic operational concept
1. External controller commands box to acquire X words (commands come over the lan interface)
2. Box acquires data on fiber interface and buffers in memory.
3. Box reports completion (or is polled by controller).4. External controller requests data acquired be
transferred over lan (FTP or other standard TCP protocol required).
5. Box transfers data6. Box awaits next command.
Hardware diagram
RabbitCore RCM 2100 Design Advantages
5 V design 10Base-T Ethernet on-board Plug-in design
Applications Embedded Control Process Control Test and Measurement
Tasks/Duties Since we are dealing with Ethernet and fiber optic
cables we divided the research up: Montaque and Jasmine will focus on the Ethernet portion
of the project Damola and Andrew will handle fiber optics portion of
the project. Even though research on each side is done separately
we still we all will have a full understanding of both fiber optics and Ethernet. From the knowledge and information we gathered, we will then collaborate and be able to form a solution to the problem statement.
TimelineMilestone Scheduled Date Initial Proposal : Version I October 12, 2011
Initial Proposal Presentation October 19, 2011
Written Proposals: Version II October 19, 2011
Second Proposal Presentation November 2, 2011
Proposal Presentation November 9, 2001
Evaluation/Selection of Design November 2011
Finalize Design November 2011
Ordering of components/Parts December 2011
Project prototype January 2012
Project Presentation April 2012
Cost and Resources
Item Unit Cost ($) Quantity Cost ($) RabbitCore RCM 2100 kit 280 1 280
Fiber to Ethernet Converter 150 1 150
Aurora Interface Kit 60 1 60
Cables 20 2 40
Miscellaneous 150
Total Cost 680
Below we have provided a tentative budget chart to help us visualize what is needed physically and monetarily to go forward with the project.
Conclusion Our team will design and create an on demand
converter.
The box we develop will take in one fiber interface, converts it to copper, buffer it in local memory, and ultimately make it available to the test system through a lan interface.
Questions