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CC of CO�Integrated Subsystems Test Review �(ISTR)

Arapahoe and Red Rocks Community Colleges

Team Members: Jillian Frimml, Skyler Puckett, Delaney Lim, Konstantin Zaremski, Kieran Shields, Sean Sharp, Meghan McCabe, Ben McDill, Ben Sprik

April 1, 2022

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Presentation Outline

Section 1: Mission Concept and Interfaces
Section 2: Design Overview
Section 3: Subsystem Testing Status
Section 4: Integrated Subsystem Testing Status
Section 5: Plan for FMSR
Section 6: Project Schedule
Section 7: Project Management
Section 8: Conclusion

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1.0 Mission Concept and Interfaces

Kieran Shields

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Mission Overview

1.0 Mission Statement

The mission outline for this year's payload is to iterate and improve on a legacy deployable boom arm by changing the mechanism used to generate torque with interlocking gears, use a 360-degree GoPro that shall shoot in a higher definition video with a clear view of the rocket and other payloads, and create an experiment that will test bit flips caused from high energy radiation. The aim of the mission is to innovate a mechanical design, explore an avenue of research on the effects of high-altitude radiation on modern computers chips, and record a high-definition video of a sounding rocket at apogee and splashdown.

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Success Criteria

Minimum Success:

Primary

Arm extension and retraction is captured on engineering camera.
Stored data confirms camera was successful in startup/recording operations.

Secondary:

Writing to the FRAM and send one complete copy stored in Pi.
Null hypothesis is confirmed, and no memory corruption was observed.

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Success Criteria

Comprehensive Primary Objectives

Increase the extension length of the deployable boom to capture views of the whole rocket during apogee by redesigning mechanical systems for operating extension/retraction of boom and optimizing deck space.

Begin camera recording before skirt deployment.

Continue recording footage during re-entry and splashdown.

Store data captured both internally on camera and engineering camera footage of back up on the microprocessor for redundancy.

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Success Criteria

Comprehensive Secondary Objectives

The payload shall carry an array of FRAM breakout boards that will be exposed to space while on flight deck.

The payload shall count when there is a change from 0 to 1 in computer memory, storing the information internally. The amount of bit flips will be measured.

The payload shall include a study of how often these soft errors occur per exposed area.

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8

Concept of Operations

t ≈ 20 sec

Altitude: 50 km

Go Pro Max start recording via Bluetooth signal

t ≈ 15 min

Splash Down

GoPro Max continues to record until internal battery dies

t ≈ 85 sec

Altitude: 90 km

TE-1 Arm extension

t ≈ 220 sec

Altitude: 150 km

TE-2 Arm retraction

Apogee

t ≈ 200 sec

Altitude: ≈150 km

End of Orion Burn

t ≈ 30 sec

Altitude: 20 km

t ≈ 336 sec

Altitude: 60 km

GSE Power off

Pi shutdown, Sensors stop collecting data,

SEU experiment ends

Altitude

t ≈ 330 sec

Chute Deploys

t ≈ -600 sec

Altitude: 0

GSE-1

Power on, Pi on, Sensors start collecting data

SEU Experiment start,

t ≈ 10 sec

Altitude: 5 km

TE-R Send Bluetooth signal turn on GoPro Max and start recording

Power flowing to GoPro

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Payload Location

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Pointing - West

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Sun

WFF

0

90

180

270

Zenith

Nadir

FWD/Top

East

Aft

(south)

Forward

(north)

West

East

West

CCofCO Deployment/Pointing

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Activation Sequence: CC of CO

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	School	Start (sec only)	Start (min, sec)	Dwell (sec)	End (sec only)	End (min, sec)	Comments
GSE 1	CC of CO	T-600s	T-10min	Flight	Flight	Flight	Power on Raspberry Pi, Sensors, SEU experiment, Supply power to Motor.
GSE 2
TE-R	CC of CO	T+10s	T+0min, 10sec	10sec	T+20s	T+0min, 20sec	Signal 360 camera Bluetooth turn-on record sequence
TE-1	CC of CO	T+85s	T+1min, 25sec	10sec	T+105s	T+1min, 35sec	Motor activation, arm extend just after skit deployment
TE-2	CC of CO	T+220s	T+3min, 40sec	10sec	T+230s	T+3min, 50sec	Motor activation, arm retraction seconds after apogee. Pi saves data, Pi boot down process after 60 sec
TE-3

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Pin Assignments: Power

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Power Connector--Customer Side
Pin	Function
1	GSE 1
2	TE-RA
3	N/A
4	TE-1
5	N/A
6	N/A
7	Ground GSE 1
8	Ground TE-RA
9	N/A
10	TE-2
11	N/A
12	N/A
13	N/A
14	Ground TE-1
15	Ground TE-2

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Pin Assignments: Telemetry

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Telemetry Connector--Customer Side
Pin	Function	Pin	Function
1		20
2		21
3		22
4		23
5		24
6		25
7		26
8		27
9		28
10		29
11		30
12		31
13		32	sensor and status data
14		33	ground
15		34
16		35
17		36
18		37
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Updated Power Budget

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CCofCO - Power Budget
Wallops Power Line	Subsystem	Voltage (V)	Max Current (A)	Start Time (min)	Time On (min)	Watts	Ah
GSE1/2	MCH/SDE	5.0	0.2	T – 10 min	15.6	8.76	0.46
GSE1/2	MOTOR	12.0	0.1	T – 10 min	1.67	8.64	0.02
TE1/2/3/R	GOPRO	5.0	0.01	0.16667	0.1667	15.00	0.01
	MOTOR HAT	5.0	0.01	1.41667	0.1667	15.00	0.01
	MOTOR HAT	5.0	0.01	3.66667	0.1667	15.00	0.01
						0.00	0.00

		GSE 1Total
		TE1/2/3/R Total
		Total	11.47			62.40	0.50
		Total Power Capacity					0.50
		Over/Under					0.0

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Detailed Weight Budget

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Weight Budget
Subsystem	Total Weight (lbs)
Computer Housing, Arms, Camera Housing	6.464
Electrical	2.028
Camera	0.385
Deck	3.425

Total	12.302
Over/Under	-2.698

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2.0 Design Overview

Ben McDill

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System Changes Since STR

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Changed GSE turn on event from T-180s to T-600s to facilitate SEU experiment

Reading and writing to the FRAMs take too long. We want to have time to write and read one image to the FRAM boards before launch

Removed multiplexers and using 16 FRAM boards

Multiplexers don’t read the addresses correctly
Created a 2^nd set of I2C addressing, but could not get 3 sets of I2C addressing to work correctly

Changed telemetry to serial RS-232 communications

Streamline telemetry and simplify code.

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Right Side And Left Side

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Prototype of integrated system. (Right Side)

Prototype left side view

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Right Side And Left Sides CAD

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Prototype left side view

Prototype of integrated system. (Right Side)

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Top Side and Front Side�

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Top view of integrated prototype

Front View with engineering camera

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Top side and Front Side CAD

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Top view of integrated prototype

Front View with engineering camera

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View of fully extended arm

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Functional Block Diagram

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Software Design Flow Diagram

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Software Design Flow Diagram

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Hazardous Mechanical Items

Hazardous materials

High heat epoxy

Hazardous operations

Deployable arm (48in. 1 in. per sec.) with motor

Mechanical components that may be hazardous

N/A

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Hazardous Electrical Items

Identify any high voltage items/components

N/A

Identify any operational hazards with your electrical design

N/A

Hazardous Operations:

N/A

Hazardous Components:

GoPro Max Rechargeable Lithium-Ion Battery
Real Time Clock Watch Battery

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Special Requests

Bluetooth – 2.4MHz

Used for GoPro camera to start recording

Battery

GoPro internal battery
Real Time Clock battery

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Update on Partnerships

Our current partnerships are:

Colorado School of Mines
Red Rocks Community College
Arapahoe Community College

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3.0 Subsystem Testing Status

Sean Sharp

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Subsystem Testing Status: Sensors

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Sensors

All sensors tested

All sensors tested including engineering camera
Need to integrate accelerometer with remaining sensors, but it works
Code starts as soon as Pi turns on – need to make inhibit code for June tests

75%

Sensor code confirming the sensors are functional

Test bench with main sensors attached

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Subsystem Testing Status: SEU Experiment

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SEU Experiment

All FRAMs can be written to and read from
Test was started on March 11th successfully wrote to the experiment but found an issue with the I2C and made the decision to drop a test group. Reduced from 24 to 16 FRAMs. The multiplexer addressing also did not work
Processing of the reading and writing takes 4-5 minutes per trial

75%

FRAM sensors connected to Pi during system test

Code confirms the FRAM boards have read test file

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Subsystem Testing Status: 360 Camera

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Camera

Camera code has been written and works

Code needs adjusting to guarantee the camera turns on in proper state
Code need to allow for power to flow to GoPro on TE-R activation.
Camera Housing still needs to be milled

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Subsystem Testing Status: Boom Arm

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Boom Arm

Code successfully activates the motor off timer events and limit switches
Arms have been milled
Needs to be assembled
Motor needs to be adjusted for 1in/sec
Gearing system milling specs are in the process of being ordered

75%

Extension

Retraction

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Subsystem Testing Status: Main Computer Housing

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Main Computer Housing

Design has been finalized
In the process of being ordered
Need to do a test fit test with parts once milled

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4.0 Sensors, SEU, Boom Arm, 360 Camera, Electrical Box,

USB camera

Manufacturing progress:

50%

Integrated Subsystem Testing Status:

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5.0 Plan for Full Mission Simulation Review (FMSR)

Ben Sprik

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Mechanical Testing

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Remaining Tests

Shake plate testing of assembled payload
Final mass and center of mass testing and adjustments with ballast material

Testing Schedule

Shake plate testing and final mass adjustments shall be performed when all parts have been milled and assembled (end of April)

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Mechanical Testing

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Camera Arm Deployment Testing

Once the payload is fully assembled, the motor power shall be calibrated to make the arm extend at less that 1 inch per second
The smooth operation of extension and retraction shall be confirmed
The arm has been prototyped and the speed of the extension was easily changed in the arm extension software

Mechanical Inhibits

N/A

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Electrical Testing

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Remaining Tests

Integrate accelerometer into full system test
Fit test with all the electrical components in the electrical box

Testing Schedule

Accelerometer will be integrated at next meeting (4/01)
Fit test will be conducted when the E-Box arrives (4/22)
Testing flight hardware with a full mission simulation (April)

No High Voltage Components

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Electrical Testing

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Internally Powered Components

Real Time Clock - will be tested by cutting power to system to rely on RTC to keep track of time
GoPro Battery - has been tested and is functional

Electrical Inhibits

RF inhibit for Bluetooth signal from RasPi to turn on GoPro. RF inhibit will be a screw inhibit so that it can be on during Wallops testing
Wire inhibit connected to the Pi and routed through the 44-pin Dsub will prevent extension of boom arm during Wallops testing and shall be cut before flight

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Software Testing

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Code that has been completed:

Code for all main electrical sensors has been written and tested
FRAM software has been tested and is able to send test image and scan for soft errors.
Code for the GoPro is working and can initiate Bluetooth to turn on camera.
Code for the motor is working and has been tested using timing events.

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Software Testing

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Code that needs to be completed:

Serial communication RS-232 code needs to be tested to make sure mission updates can be easily sent to mission control. (Testing on 04/01 and 04/08)
GoPro code will need to be tested to validate function to send power to the GoPro (Testing on 04/08)
Full integration test will need to be conducted to verify all system code interacts properly. (Testing on 04/08 and 04/15)
Inhibits will need to be tested once GoPro code is finalized (Testing on 04/15)

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Software Testing

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Software Inhibits:

The software inhibits will work by looking for a signal from the RF inhibit wire and the Motor inhibit wire.
The RF inhibit wire will listen for an open or closed circuit and either set the camera function to test or flight mode. Flight will run normally. Test will stop initiation of Bluetooth turn on/record function.
The Motor inhibit wire will also listen for an open or closed circuit and either stop the arm motor functions for testing or allow motor functions for flight. This wire will be cut before flight.

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System Level Testing

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Remaining Full System Tests

Flight simulation with telemetry
System testing with assembled mechanical and electrical components

Testing Approach

Telemetry will be tested at CU Boulder after initial testing at RRCC
Mechanical components will also be integrated and tested at CU Boulder at the same time as telemetry

Timeline

Initial testing at RRCC completed by 4/15
Second round of flight simulation testing at CU Boulder before 5/6

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Plan for FMSR

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Team focus will mainly be on the manufacturing of our electrical box, boom arms and camera housing. Our plan for FSMR is to run a full mission integration test with the mechanical parts to work out any kinks before testing in June.
The major hurdle we are facing currently is the waiting times for acquisitions and manufacturing.

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6.0 Project Schedule

Jillian Frimml

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Schedule: April, May, June

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4/1/2022	5/5/2022	FMSR preparation
4/1/2022	4/7/2022	Assemble arm members and anti-gravity system, test FRAM with radiation, order milled parts
4/8/2022	4/14/2022	Test epoxy heat resistance, mill GoPro housing, order milled parts, complete GoPro code
4/15/2022	4/21/2022	Assemble electronics components for flight, inhibit testing
4/22/2022	4/28/2022	Check-in #3 (4/22), assemble milled parts, inhibit testing
4/29/2022	5/5/2022	Vacuum test, shake test, G-force testing, waterproof testing
5/6/2022		FMSR presentation

5/6/2022	6/2/2022	Weekly Teleconferences
5/6/2022	5/12/2022	Finish any missing full mission simulation testing and assembling needed
5/13/2022	5/19/2022	Create slide deck for the steps that needs to be complete for Wallops testing and flight
5/20/2022	5/26/2022	Check-in #4 (5/20)
5/27/2022	6/2/2022	Verification Check-in (5/27)

6/3/2022	6/24/2022	Visual Verification Check-In
5/27/2022		Verification Check-in
6/1/2022		Payload delivery
6/6/2022	6/10/2022	COSGC GSE Check Outs
6/16/2022	6/17/2022	Wallops GSE Check Outs
6/17/2022		Experiment Weight and Power Checks, Mechanical Integration, Build up from Sequence
6/20/222		Pre-Vibe Sequence Testing
6/21/222		Pyro Mechanical install, Vibe testing
6/22/222		OPS Spin, RockOn/RockSat-C launch
6/23/222		RFI Testing, Post-Vibe Sequence Testing, June Payload Status Verifications
6/24/222		Build Up for Balance and MOIs

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June Operations

Detail the steps you will follow to operate your payload with or during the:

RS-X GSE

For this test we shall operate the payload in a testing mode, this will inhibit arm motor functions and Bluetooth functions. Sensors, telemetry and SEU experiment will function normally.

Sequence testing with Wallops GSE

For this test we shall operate the payload in a testing mode, this will inhibit arm motor functions and Bluetooth functions. Sensors, telemetry and SEU experiment will function normally.

Wallops RFI testing

For this test we shall operate the payload in a testing mode, this will inhibit arm motor functions. We shall use a screw inhibit to turn on and off Bluetooth functions as needed during this test. Sensors, telemetry, and SEU experiment will function normally.

Vibration testing

For this test we shall operate the payload in a testing mode, this will inhibit arm motor functions and Bluetooth functions. Sensors, telemetry, and SEU experiment will function normally.

Post-vibe sequence testing with Wallops GSE

For this test we shall operate the payload in a testing mode, this will inhibit arm motor functions and Bluetooth functions. Sensors, telemetry, and SEU experiment will function normally.

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June Operations

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Aspects that will be present for testing:

Arm
360 Camera
Sensors
Telemetry
SEU experiment
Electrical Box

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June Operations

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Aspects that will not be present for testing:

Arm extension and retraction will be inhibited during testing. This system needs a gravity off-loading system to be tested properly.

The SEU experiment functions will be partially tested. To fully test the SEU, experiment a radiation source is needed.

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7.0 Project Management

Jillian Frimml

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Payload Special Operations/Inhibits

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We will be using a screw inhibit that will make a complete circuit connection to enable and disable RF Bluetooth for Wallops testing.
There will be an arm extension inhibit wire that shall be cut before flight. These will be physical inputs for software inhibit code.

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User Guide Compliance

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Requirement	Status/Reason (if needed)
Center of gravity in 1" plane of plate?	Yes (confirmed with SolidWorks)
Weight 30.0+/- 1.0 (15.0 +/- 0.5) lbs?	12.5 lbs. (plan to add weight using steel bars)
Max Height < 10.75” (5.13”)	Yes
Bottom of deck has flush mount hardware?	Yes
Within Keep-Out Zone	Yes
Using < 10 A/D Lines	Not Using
Using/Understand Parallel Line	Not Using
Using/Understand Asynchronous Line	Yes(RS-232 Data, Ground)
Using X GSE Line(s)	Yes (GSE-1)
Using X Non-Redundant PWR Lines (TE-1, TE-2, TE-3)	Yes (TE-1,TE-2)
Using X Redundant Power Lines (TE-R)	Yes (TE-R)
Using < 1 Ah (< 0.5 Ah for half payload)	0.38 Ah
Using <= 28 V	Yes
Using RF (If yes, list frequency and TX Power)	Yes, 2.400-2.4835 GHz, 1.43mW (Bluetooth)
Using deployable?	Yes (boom arm under 1” per sec)
Whole team consists of US Persons	Yes
Using ITAR and/or Export Controlled hardware	No

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User Guide Compliance – Center of Mass

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Team Photos

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PMP: Team Organization

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Subsystem	Members
360 mission & arm	Jill	Meghan	Ben M.
Radiation Mission	Sean	Konstantin	Kieran
Main computer	Skyler	Ben S.	Delaney

Physical Structure	Members
Electrical	Ben S.	Delaney	Sean
Mechanical	Ben M.	Meghan	Kieran
Software	Skyler	Jill	Konstantin

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PMP: Mentors

Carlos Medina Hernandez – Red Rocks CC Advisor

carlos.medina@rrcc.edu

Barbra Sobhani – Red Rocks CC Advisor

barbra.sobhani@rrcc.edu
(303) 914-6366

Jennifer Jones – Arapahoe CC Advisor

jennifer.jones@arapahoe.edu
(720) 819-7625

Salma Dandass – Arapahoe CC Advisor

salma.mfaddel@arapahoe.edu
(662) 694-2633

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Budget

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Updated budget:

More detailed June/August breakdown
Added telemetry RS-232 testing parts
Budget includes raw material for milling
Lead purchased for SEU testing

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Latest Contact Matrix

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ACC and RRCC - CCofCO
Fall 2018 RS-X Contact Matrix
Role	Name	Day Phone	Cell Phone	Receive Texts?	Email	Citizenship	Add to mailing list?
Super Boss	Clark Kent	555-555-5555	555-555-5555	Yes	email@address.com	U.S.	Yes
Team Advisor	Jennifer Jones	303-797-5839	720-819-7625	Yes	jennifer.jones@arapahoe.edu	U.S.A.	Yes
Team Advisor	Barbra Sobhani	303-914-6366	303-905-4718	yes	barbra.sobhani@rrcc.edu	U.S.A	Yes
Team Advisor	Carlos Medina	720-486-4499	720-486-4499	yes	carlos.medina@rrcc.edu	Colombia (usa perm res)	Yes
Team Advisor	Salma Dandass	662-694-2633	662-694-2633	yes	salma.mfaddel@arapahoe.edu	Morocco	Yes
Student Point of Contact	Jillian Frimml	720-690-4001	720-690-4001	yes	jillian.frimml@gmail.com	U.S.A.	Yes
Team Member	Skyler Puckett	720-431-8803	720-431-8803	yes	skypuckett2302@gmail.com	U.S.A.	No
Team Member	Sean Sharp	720-236-4538	720-2364538	Yes	ssharp23@student.cccs.edu	U.S. / Panama	No
Team member	Meghan McCabe	720-772-0579	720-772-0579	yes	peachbook49@gmail.com	U.S.A.	No
Team member	Delaney Lim	303-882-7745	303-882-7745	Yes	sunflower5101520@gmail.com	U.S.A.	No
Team Member	Kieran Shields	610-999-3146	610-999-3146	yes	kieran.shields.contact@gmail.com	U.S.A. / Ireland	No
Team Member	Konstantin Zaremski	720-375-4405	720-375-4405	yes	konstantin.zaremski@gmail.com	U.S.A. / Ukraine	Yes
Team Member	Ben McDill	971-227-4136	971-227-4136	Yes	bmcdill@student.cccs.edu	U.S.A	No
Team Member	Ben Sprik	303-704-9437	303-704-9437	Yes	bensprik@gmail.com	U.S.A	No

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Availability Matrix

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ACC and RRCC – CC of CO
Fall RS-X Team Availability Matrix
			PLEASE USE MOUNTAIN TIME ZONE TIMES
	Monday	Tuesday	Wednesday	Thursday	Friday
7:00 AM	3	3	3	3	2
8:00 AM	3	2	2	2	2
9:00 AM	4	4	4	4	2
10:00 AM	4	4	4	4	2
11:00 AM	4	4	4	4	2
12:00 PM	4	4	4	4	1
1:00 PM	4	4	4	4	1
2:00 PM	4	4	4	4	1
3:00 PM	4	3	3	2	1
4:00 PM	4	3	3	1	1
5:00 PM	3	2	2	1	1

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8.0 Conclusions

Skyler Puckett

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Worries and Concerns

Limitation of budget leaves very little room for error if a part needs to be replaced

The test sensors can be used if a flight sensor fails

Trying to catch up on the manufacturing process and to be ready for a full mission simulation review in May

Meet up more often or for longer to assemble

GoPro consistency – reliability turning on has been a challenge.

Looking at exception handling if an error occurs for retry of commands

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Conclusion – Questions

Confirmation on how the power budget is meant to be calculated and confirmed for GSE testing
Will wallops lodging be open to students this summer to cut down on travel cost?
Historically, is our current progress in line with other teams around ISTR?
What area do you believe should be focused on more?
Where do teams fall short between now and delivery?
Can we revisit Boulder on April 22?
During June testing, how often will the payload be on/off? Could we wipe the data before launch in August? (For camera and storage)

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What is your favorite number?

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Appendix

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