CanSat 2016 Preliminary Design Review (PDR) Outline Version 1.0

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CanSat 2016 PDR: Team ### (Team Number and Name) 1

CanSat 2016 Preliminary Design Review (PDR)

Outline Version 1.0

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IMPORTANT PRESENTATION GUIDELINE:Teams should only present charts with this star icon during the

teleconference. Other charts should be skipped to save time; they will be reviewed by the judges off line.

Presentations are to be 30 minutes in length.


Presentation Outline

• Provide a simple outline of the presentation• If possible, indicate the team member(s) who will be

presenting each section• Terms:

– Container refers to the Re-entry Container component of the CanSat

– Payload refers to the Glider Science Payload component of the CanSat

Presenter: Name goes here

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Team Organization

• Single slide listing the team members and their roles– If possible, please include year (freshman, sophomore, etc.) for reference– This only needs to be provided once for team members showing up multiple

times on the org chart• Good format is the use of an organization chart, such as below:


Team Lead(s)Name(s)

SubSystem 2 Lead(s)Name(s)

SubSystem 3 Lead(s)Name(s)

SubSystem 1 LeadName(s)

Faculty Advisor

Subsystem Engineer 1 Subsystem Engineer 2

Subsystem Engineer 1

Subsystem Engineer 1

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Acronyms

• Provide a list of acronyms used throughout the presentation– During presentations, do not read through these

acronyms• These are for reference only


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Systems Overview

Presenter Name(s) Go Here

The purpose of this section is to introduce the reviewer to the overall requirements and configuration of the CanSat. This provides a basis for the details presented in the subsystem sections.

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Mission Summary

• Overview of the mission objectives• Indicate whether one or both selectable objectives

(bonus) are being attempted– Describe selection rationale

• Include any external objectives (personal, laboratory or sponsor, class, etc.) relevant to the design


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(If You Want) System Requirement Summary

• Overview of system (mission) level requirements– Use bullets or a table to demonstrate an understanding of

the mission requirements• This chart may be expanded to multiple charts as

needed• The purpose of the chart is to demonstrate the team

understands the system-level requirements

CanSat 2016 PDR: Team ### (Team Number and Name) 7Presenter: Name goes here

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System Level CanSat Configuration Trade & Selection

• Present preliminary system-level concepts considered– What configurations were considered

• Present criteria for final configuration selection– Include discussion of why the final configuration was selected

• Include sketches and diagrams of various concepts considered– Diagrams of non-selected configurations can include sketches of

physical layouts (e.g. scans of hand sketches rather than CAD drawings)

• Include variations on CONOPS considered• Limit discussions to 1-2 slides per preliminary configuration

– Presentation of the material may be at a cursory level (hit the highlights)


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System Concept of Operations

• 1-3 slides providing overview of CanSat operations• Include:

– Launch and descent operations• Be sure to include Glider operations

– Post-launch recovery and data reduction– Focus on selected configuration CONOPS

• Focus on how the CanSat will operate, not what everyone on the team will be doing (to be discussed at CDR)

• Simple flow diagrams and cartoons are a good way to present the CONOPS– Please no hand-drawn diagrams


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Physical Layout

• Diagram(s) showing physical layout of selected CanSat configuration

• Make sure to include:– Dimensions– Placement of major components– Relevant configurations

• Container, Payload, launch configuration, deployed, etc.• The goal is to present the physical idea of what the

CanSat will look like for reference prior to getting into details of the design


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Launch Vehicle Compatibility

• Discussion of how the CanSat is integrated into the rocket payload section• Discussion of how the rocket payload section compatibility will be verified

prior to launch day• Include a dimensioned drawing that shows clearances with the payload

section– Focus on launch configuration (Container + Payload)– Include all descent control apparatus (no sharp protrusions)– At PDR this may be allocated dimensions (if this is the case, these should be

requirements at the system and subsystem levels)– What is the clearance? (Leave margin to allow easy deployment!)

• Note:– In past years there were a large number of CanSats that did not deploy from

the payload sections of the rocket because of protrusions or because the CanSat was too wide to fit in the rocket

– Lack of sharp protrusions and fit within the Launch Vehicle will also be scored at the Flight Readiness Review


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Sensor Subsystem Design


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Sensor Subsystem Overview

• One slide providing an overview of the CanSat sensor system– Include summary of the selected sensors (type &

models)– Include brief discussion of what the sensors are used for– Focus on selected component (not all components

trades)– Include overview of both Container and Payload sensors,

as applicable


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Sensor Subsystem Requirements


• Overview of sensor subsystem requirements– Use bullets or a table to demonstrate an understanding of

the requirements for this subsystem• This chart may be expanded to multiple charts as

needed• The purpose of the chart is to demonstrate to the

judges an understanding of the requirements that apply to the subsystem

• Clearly indicate:– Which Competition Guide Requirements are allocated to

this subsystem– Any derived requirements for the subsysytem

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GPS Receiver Trade & Selection

• Summary of GPS receiver trade study and selection– Include both Carrier and Payload, as applicable


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Air Pressure Sensor Trade & Selection

• Summary of altitude sensor trade study and selection– Include both Carrier and Payload, as applicable


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Pitot Tube Trade & Selection

• Summary of altitude sensor trade study and selection– Include both Carrier and Payload, as applicable


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Air Temperature Sensor Trade & Selection

• Summary of air temperature sensor trade study and selection– Include both Carrier and Payload, as applicable


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Battery Voltage Sensor Trade & Selection

• Summary of battery voltage sensor trade study and selection– Include both Carrier and Payload, as applicable


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Camera Trade & Selection

• Summary of camera trade study and selection– Include both Carrier and Payload, as applicable


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Descent Control Design


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Descent Control Overview

• One slide providing an overview of the Container and Glider descent control system(s)

• Include overview of the selected configurations and components necessary

• Include diagrams outlining descent control strategy for various flight altitude ranges


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Descent Control Requirements


• Overview of subsystem requirements• Use bullets or a table to demonstrate an understanding

of the DCS requirements• This chart may be expanded to multiple charts as


judges that the team understands the system-level requirements


this subsystem– Any derived requirements for the subsystem

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Container Descent Control Strategy Selection and Trade

• Summary of container DCS strategy trade studies and selection

• Include:– Color selection– Shock force survival– DCS connections– Preflight review testability


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Payload Descent Control Strategy Selection and Trade

• Summary of Glider Science Payload DCS strategy trade studies and selection– Include details on glider operation such as configuration,

wing dimensions, and glide ratios– Include color selection– Preflight review testability


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Descent Rate Estimates

• Present numeric estimates for the following CanSat configurations– Container + Payload post rocket-separation (prior to

deployment of the Payload)– Container following deployment of the Payload– Glider Payload following separation from the Container

• Include discussion of – Calculations used – Assumptions

• This discussion can carry over to multiple slides if necessary


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Mechanical Subsystem Design


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Mechanical Subsystem Overview

• One slide providing overview of the mechanical subsystem– Include overview of major structural elements, material

selection, and interface definitions– Include Container and Payload mechanical

configurations


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Mechanical Sub-System Requirements


• Overview of mechanical sub-system requirements– Use bullets or a table to demonstrate an understanding of



judges that the team understands the requirements that apply to this sub-system


this subsystem– Any derived requirements for the subsytem

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Mechanical Layout of Components Trade & Selection

• Key trade issues related to mechanical layout and component selection

• Structural material selection(s)


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Camera Pointing Mechanism Trade & Selection

• Selectable objective – only required if Selectable Bonus 1 (camera pointing) is selected

• Details on mechanism that will be used to point the camera

• Key trade issues related to mechanical layout and component selection

• Structural material selection(s)


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(If You Want) Material Selections

• Discussion of what materials will be used for the mechanical components and why


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Container - Payload Interface

• Describe how the Payload will be connected to and released (mechanically) from the Container– Include:

• Discussion of how descent control apparatus will be accommodated

• Diagrams• Method of operation

– Clearance between Payload and Container


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(If You Want) Structure Survivability Trades

• For both Container and Payload discuss:– Electronic component mounting methods– Electronic component enclosures– Acceleration and shock force requirements and testing– Securing electrical connections (glue, tape, etc.)

• Consider required judge verification during pre-flight check in– Descent control attachments


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Mass Budget

• Table(s) providing the following:– Mass of all components– Mass of all structural elements– Sources/uncertainties – whether the masses are

estimates, from data sheets, measured values, etc.– Total mass– Margin and method of correction at launch site

• Must clearly distinguish between Container and Payload masses


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Communication and Data Handling (CDH) Subsystem Design


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CDH Overview

• One slide providing overview of the CDH subsystem– Should include selected components (with brief mention

of what each component is for)


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CDH Requirements


• Overview of CDH sub-system requirements– Use bullets or a table to demonstrate an understanding of






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CanSat 2016 PDR: Team ### (Team Number and Name)

39

Processor & Memory Trade & Selection

• Include processor speed• Include data interfaces (types and numbers)• Include memory storage requirements, if applicable• Power management


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(If You Want) Real-Time Clock

• Describe design for payload and container real-time clock functions– Hardware or software– Reset tolerance


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Antenna Trade & Selection

• Antenna selection criteria• Antenna range and patterns


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Radio Configuration

• Demonstrate an understanding of the protocol and configuration (e.g., mode and NETID) required to initialize and utilize the XBEE radio module

• Provide description of the impact those requirements have on the CanSat design

• Include transmission control– How is this managed during each mission phase?

• Note:– Communications failures have occurred often over the past several

years of the competition– You are encouraged to use your radios in all of your development

and testing to better ensure mission success• Ideally you have started working with the radio and communications

protocol


Start Radio Prototyping and Testing Early!

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Telemetry Format

• What data is included?– Check the competition guide for telemetry

requirements– Include fields for bonus objectives

• Data rate of packets?– Continuous or burst

• How is data formatted?– Include example frames with complete descriptions– Does the presented format match the Competition Guide

requirements?


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Electrical Power Subsystem (EPS) Design


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EPS Overview

• One slide providing overview of EPS components (with purposes)

• Include a diagram


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EPS Requirements


• Overview of EPS subsystem requirements• Use bullets or a table to demonstrate an understanding

of the mission requirements• This chart may be expanded to multiple charts as





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Electrical Block Diagram

• High-level schematic (not down to the resistor level) showing power connections– Include required voltages– Include all major components

• Include overview of how power will be controlled and verified externally without disassembling the CanSat– I.e., an easily accessible external switch– This will be scored again at the Flight Readiness Review

• Include diagrams for Container and Payload in one or two slides

• Umbilical power source for use in test and safety inspection


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(If You Want) Payload Battery Trade & Selection

• Describe payload energy harvesting strategy and considered options, including:– Power source– Energy storage– Rationale


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Power Budget

• Power budget in tabular format which includes:– Power consumption (W) of all components– Expected duty cycles for all components– Source/uncertainty for each line item

• Estimate, data sheet, measurement, etc.– Total power consumed (mAh)– Power sources and total power available– Power storage devices and strategy

• Graphical representation of charge / discharge cycles– Margins

• Include potential one hour wait on the launch pad for the Container


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Power Storage Trade & Selection

• Discussion of power storage selection


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Power Bus Voltage MeasurementTrade & Selection

• Discuss voltage measurements technique and circuit


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Flight Software (FSW) Design


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FSW Overview

• Overview of the CanSat FSW design• Should discuss

– Basic FSW architecture– Programming languages– Development environments– Brief summary FSW tasks


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FSW Requirements


• Overview of mechanical sub-system requirements• Use bullets or a table to demonstrate an understanding

of the mission requirements• This chart may be expanded to multiple charts as




this subsystem– Any derived requirements for the subsytem

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CanSat FSW State Diagram

• Software state diagrams for Payload and Container (as applicable) defining the states and transition conditions of the flight software

• Include:– Sampling of sensors (including rates)– Communications (command and telemetry)– Data storage (if applicable)– Mechanism activations– Major decision points in the logic– Power management

• FSW recovery to correct state after processor reset during flight– What data is used to recover?


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Glider FSW Plan

• Include details on how the Glider Flight Software will accomplish the objectives (glide for 2 minutes in a circular pattern not to exceed 1000m in diameter)– This can be shown with block diagrams, pseudocode, or by another

display method


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Software Development Plan

• A common CanSat problem is late software development

• Present a slide describing the plan for software development and plans to reduce the risk of late software development

• Include:– Prototyping and prototyping environments– Software subsystem development sequence– Development team– Test methodology


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Ground Control System (GCS) Design


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GCS Overview

• Include a simple context diagram showing major components (computers, antenna, adaptors, etc.)


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GCS Requirements


Examples of requirements to include:• Realtime plotting functions• Telemetry initialization• Portability design

• Overview of GCS requirements• Use bullets or a table to demonstrate an understanding

of the requirements for the GCS• This chart may be expanded to multiple charts as


judges that the team understands the requirements that apply to the GCS

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GCS Antenna Trade & Selection

• Make sure to include:– Antenna construction, placement, and coverage

• Diagram is recommended• Note: attaching to tent structure is not allowed

– Antenna portability strategy• How will the antenna fulfil requirements 34 and 35 while still

allowing for realitme telemetry reception?– Distance link predictions and margins


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(If You Want) GCS Software

• Telemetry display prototypes • Commercial off the shelf (COTS) software packages

used• Real-time plotting software design• Data archiving and retrieval approach• Command software and interface• Telemetry data recording and media presentation to

judges for inspection• Describe .csv telemetry file creation for judges


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CanSat Integration and Test


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CanSat Integration and Test Overview

• 3-5 slides• Discussion of how the CanSat subsystems will be integrated• Discussion of system-level tests to be performed on the integrated

CanSat• At PDR this should include concepts for how subsystems will be

integrated– Sequence (which subsystems are needed prior to others)– Test equipment necessary– Test environments necessary

• The goal(s) at PDR are– Get teams thinking about how to put all the pieces together– Get teams thinking about how to test the integrated assembly to

make sure it works as a unit


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Mission Operations & Analysis


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Overview of Mission Sequence of Events

• Preliminary launch-day sequence of events– Should start w/arrival at the launch site and proceed

through recovery and data analysis• Include:

– Flow chart of events– Team member roles and responsibilities– Antenna construction and ground system setup– CanSat assembly and test

• Preliminary at PDR


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Mission Operations Manual Development Plan

• Discuss development and content of the Missions Operations Manual for your CanSat


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CanSat Location and Recovery

• Discuss how you will find your CanSats in the field– Discuss Container and Payload recovery– Color selection of visible components– CanSat return address labeling

Presenter: Name goes herePresenter: Name goes here

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CanSat 2016 CDR: Team ### (Team Number and Name) 69

Requirements Compliance


The purpose of this section is to summarize and cross reference the compliance to the CanSat Competition Mission Guide requirements.

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(If You Want) Requirements Compliance Overview

• State current design compliance to requirements• Summarize content of the detailed slides that follow• If the design does not comply to the requirements, that

is a serious issue – why?

CanSat 2016 CDR: Team ### (Team Number and Name) 70Presenter: Name goes here

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71

Requirements Compliance(multiple slides, as needed)

• Provide a table demonstrating compliance to all competition base requirements– Use the following format in as many slides as required

CanSat 2016 PDR: Team ### (Team Name)

RqmtNum Requirement

Comply / No Comply /

Partial

X-Ref Slide(s) Demonstrating

Compliance

Team Commentsor Notes

1Total mass of CanSat, container, and all descent control devices shall be 700 grams. Mass shall not vary more than +/-10 grams.

Comply x, y, z Everything should be green by CDR.

2 The cansat must be installed in a container to protect it from deployment out of the rocket. -- -- --

3The container shall fit inside the cylindrical payload section of the rocket defined by the cylindrical payload envelope of 130 mm x 250 mm length control system including the descent

Partial Medium problem: why?

4 The container must use a descent control system. It cannot free fall.

No Comply Big problem: why?

5 The container shall not have any sharp edges that could cause it to get stuck in the rocket payload section.

6 The container must be a florescent color, pink or orange.

Use the Green (Comply), Yellow (Partial Compliance), and Red (No Comply) color codes as shown in the examples above for each requirementPresenter: Name goes here

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Management


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CanSat Budget – Hardware

• Provide a table listing the costs of the CanSat flight hardware

• Table should include– Cost of major components and hardware– Indication of whether these costs are actual, estimates,

or budgeted values– Indication of hardware re-use from previous years

• The current market value for re-used components should be included

• Note: re-used flight hardware has been known to be more likely to fail


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CanSat Budget – Other Costs

• Table(s) (same format as Hardware Budget) showing– Ground control station costs– Other costs

• Prototyping• Test facilities and equipment• Rentals• Computers• Travel

– Income• Sources of project income

• The goal(s) of this budget are– To provide an understanding of the overall design and development costs– Get the teams thinking about the overall costs including necessary funds for

travel– Identify shortfalls in the budget that require attention

• In the past some teams have not been able to attend the competition due to a lack of funds

• If caught early enough, there are a number of resources for funding that may available to teams

– THE COMPEITION DOES NOT PROVIDE ANY DEVELOPMENT FUNDING OR DONORS


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Program Schedule

• Overview of development schedule to include– Competition milestones– Academic milestones and holidays– Major development activities– Component/hardware deliveries– Major integration and test activities and milestones

• The schedule should be “wrapped up” to 1-2 levels– Show high-level tasks only in order to make the schedule readable– It is recommended a schedule at lower levels is developed in order to provide the

team with tools for tracking progress and assessing trouble areas• The goals of this schedule are to

– Provide a tool for the team to track progress of CanSat design and development– Provide tool for judges to assess trouble areas and offer ways for the team to best

meet the objectives of the competition• A one page Gantt summary chart showing task start and stop dates and durations

shall be presented– Schedule should include linkages between tasks to provide the team with an idea of

what happens in the overall flow when milestones are not met on time• Make sure the schedule is readable in the presentation

– This may require the schedule to be broken between multiple slides• Failure to do so will result in a loss of points


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Conclusions

• Presentation summary and conclusions• In general include the following:

– Major accomplishments– Major unfinished work– Why you are ready to proceed to next stage of

development


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Presentation Scoring & Additional Information

The following slides provide additional information regarding presentation scoring, as well as

recommendations for the presentations and slides

Do Not Include the Following Charts in the Presentations

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(If You Want) Presentation Scoring

• Each slide in this template is scored on a scale of 0 to 2 points– 0 = missing or no compliance to the intent of the requirement– 1 = topic incomplete or partial compliance to requirement(s)– 2 = complete and demonstrates requirement(s) met

• Each section of the presentation (System Overview, Sensor Subsystems, etc.) is weighted according to the table

• Each team will receive a link to a summary score sheet that will contain all their competition scores

CanSat 2016 PDR: Team ### (Team Name) 78

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PPT Template Use

• All teams shall use this presentation template• Team logos

– A team logo can be inserted into the placeholder location (and size) on the master slide

– If no logo is to be used, remove the placeholder from the master slide• Team numbers in the footer should be updated in the footer information

view– REMEMBER TO PUT YOUR TEAM NAME AND NUMBER IN THE FOOTER– Team names are optional – if no team name is used, please delete from

footer text• On each slide, replace the “Name goes here” in the bottom left corner with the

name of the person(s) presenting that slide– This will allow the judges to know the person to address any questions or

comments to

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Trade Studies

• The following recommendations are made with regards to trade studies and selections– Tabular formats listing configurations/components being considered are

helpful– Need to include a discussion of the criteria being used to make the selection

• What are the components/configurations being assessed on• How are values ascribed to the criteria

– Are high values good or low values (if a ranking system is chosen)– Why are different ranking selected

• Data sources for information impacting the criteria and rankings– Make sure it is clear which final component/configuration was selected

• Teams using hardware from previous years are still expected to do a trade to ensure the components are the most appropriate for the task– Already having a component or past experience with a component can be

criteria used in the trade space– Note that in past years re-used components have a higher failure rate

• The same format (whether table are used or not) and criteria (consistent rankings, etc.) be use for all trades to make it easier to review the various trades in a timely manner

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(If You Want)Presentation Template Update Log (Do not include in presentation)

• 1.0 Initial version for 2016


Documents

CanSat 2016 Preliminary Design Review (PDR) Outline Version 1.0