Download - Team Victorious Secret Final Presentation
Team Victorious SecretFinal Presentation
Crawford LeedsJacob Broadway
Tanya HardonDevan Corona
Dylan Reed
November 29, 2011
• Effects of high altitude • Individual effects of high altitude • Space elevator protection • Lack of applicable information
Mission Overview
Arduino to measure: Pressure Temperature Humidity
HOBO for temperature and humidity Spy cameras LED array
Design Overview
Functional Block Diagram
Originally had accelerometer Added 2 pressure sensors Added 2 humidity sensors Changed from 2 to 4 cockroaches Added additional LEDs
Design Overview
Predicted: Video cameras would record
whole flight Arduino would collect data Burst at 30,480 m HOBO would collect data
successfully 2 cockroaches would survive Structure would hold
What really happened:
Video cameras shut off at 35 and 37 minutes
Arduino did not collect data Burst at 22,000 m HOBO collected temperature
and humidity data successfully
2 cockroaches survived Structure held
Results and Analysis
Results and AnalysisP
ress
ure
(mb)
Duration (s)
Pressure
Start of
depressuriza
tio
n
Restored pressure
Results and Analysis
External TemperatureLaunch
Burst
Landing
Tropopaus
e
Results and Analysis
Internal Temperature
Landing
BurstLaunch
Tropopause
Cockroach
Arduino Failure Did not record any data
Fixed by shorting reset pin Data now recording
Failure Analysis
Two unheated cockroaches died Two heated cockroaches lived Cold is most detrimental Most important for high altitude space elevator is
thermal control Unsure of effects of pressure on humans
Humans less resilient than cockroaches Can only know for sure cold at 22,000 m will kill a
person
Conclusions
Keep subsystems better isolated while loading cockroaches
Test arduino in morning before at launch site Get programing done earlier DO NOT DRIP EPOXY
Lessons Learned
Isolate and feed cockroaches until launch Keep satellite away from extreme environmental factors. To activate payload: Put cockroaches in containers and seal two pressured
boxes using epoxy 24 hours before launch. Set hobo to run at the designated time. Turn on all switches including camera button. Reset micro SD shield until yellow light blinks. Turn on both video cameras Seal box with aluminum
Ready to fly again
Requirement Compliance Matrix
Requirement
Detail
A RoachSat successfully ascended to approximately 22,000 meters by balloon on November 5 ,2011
B Weight was accepted at 905gC RoachSat carried 4 cockroachesD RoachSat descended safely to groundA.1 RoachSat remained attached to balloonB Passed final weigh-inC.1 Control cockroach was presentC.2 Cockroach 1 was presentC.3 Cockroach 2 was presentC.4 Cockroach 3 was presentC.5 Cockroach 4 was presentD.1 Structure remained intactD.2 Attachments were secure
Level0
1
Mass/Cost Final BudgetItem Cost Source of
purchaseWeight (G)
Digital camera with 2gb Memory card
Provided Provided in class 130
HOBO Data logger Provided Provided in class 30Heater Kit Provided Provided in class 100Switches Provided Provided in class 15USA Flag sticker Provided Provided in class .2Flight tube Provided Provided in class 47Foam Core Provided Provided in class 1402 Lithium 9V batteries Provided Provided in class 652 Lithium AA batteries Provided Provided in class 293 Alkaline 9V batteries Provided Provided in class Part of
heaterAluminum tape Provided Provided in class 10Hot glue Provided Provided in class 10Velcro Provided Provided in class 10
Mass/Cost Final BudgetItem Cost Source of purchase Weight (G)
Insulation Provided Provided in class 50Test batteries $8.38 Target N/ADry ice $6.48 King Soopers N/AArduino Omega 2560 (did not fly)
$58.95 SparkFun N/A
Arduino Uno Provided Space Grant 32 2 Humidity sensor- HIH-4030 Breakout
$33.90 SparkFun 2
2 Barometric Pressure Sensor - BMP085 Breakout
$39.90 SparkFun 20
10 cockroaches $16.00 www.buydubiaroaches.com
52
Micro SD shield $14.95 SparkFun N/AMicro SD shield N/A Borrowed from team 3 22 micro SD card $19.98 Target 2.8Cockroach containers $7.90 Container store 1203 White Led Lights $2.85 SparkFun 3
Mass/Cost Final Budget
Item Cost Source of purchase Weight (G)
3 White LED Lights $15.90 McGuckins 36-330 Ohm Resistor Ohm 1/6th Watt PTH
$2.50 SparkFun 2
2-720 x 480 Hi-Res Key Chain Car Remote Spy Camera DVR
$11.22 www.tmart.com 15
Proposed Total (team provided materials not included in total)
$224.05 896
Actual value $188.96 945
I promise you, this class is harder than you think it is. Be prepared for all-nighters, because you’ll probably pull at least one. You will work a ridiculous amount of hours in preparation for the flight, but as soon as that balloon takes off, it will suddenly all be worth it. Also, TEST EVERYTHING. If you don’t think something needs to be tested, test it anyway. Teamwork is the most important thing to a successful satellite. If you don’t get along with someone on your team, suck it up and put the team on your back. For Madden.
Message to next year