Victorious Secret

Critical Design Review Presentation

Team Members

Jake Broadway

Tanya Hardon

Crawford Leeds

Dylan Reed

Jannine Vela

6 October 2011

Project RoachSat

Mission Overview

• Effects of high altitude. • Individual effects of high altitude • Team hypothesis • Space elevator protection. • Lack of applicable information

Requirements Flow Down Requirement

Detail

A RoachSat shall ascend to approximately 30,500 meters by balloon on November 5 ,2011

B Weight will be no more than 850 g

C RoachSat shall carry 4 cockroaches

D Descend safely to ground

A.1 Attached to balloon with adequate pre-testing

B Final weigh-in

C.1 Control cockroach

C.2 Cockroach 1

C.3 Cockroach 2

C.4 Cockroach 3

C.5 Cockroach 4

D.1 Structural Integrity

D.2 Secure Attachments

Level

0

1

Design

• Four individual containers • Video feed • Atmospheric Sensors • Different conditions on containers • Proposal Requirements • Strategies to meet requirements

Parts

Ordered Parts

Arduino mega 2560

2 Humidity sensor- HIH- 4030 breakout

2 Barometric Pressure sensor- BMP085 Breakout

Micro SD shield

3 White LED lights

Unordered Parts Estimated Shipping time

Cockroaches 2-3 days

Cockroaches Containers 5-7 days

2 micro SD card Can be picked up at store

2 resistors 1 day

Cameras 5-7 days

3-D Model

Functional Block Diagram

Item Cost Source Weight (g)

Digital Camera Provided Provided in class

130

HOBO Data Logger Provided Provided in class

30

Heater Kit Provided Provided in class

100

Heater Kit #2 $4.59 Digikey 100

Flight Tube Provided Provided in class

20

USA Flag Sticker Provided Provided in class

.2

Switches Provided Provided in class

15

Foam Core Provided Provided in class

140

Lithium 9v Batteries (2)

Provided Provided in class

65

Lithium AA Batteries (2)

Provided Provided in class

29

Alkaline 9v Batteries (3)

Provided Provided in class

(in heater weight)

Alkaline 9v Batteries (3)

$6.95 Target (in heater weight #2)

Aluminum Tape Provided Provided in class

10

Budget

Item Cost Source Weight (g)

Hot Glue Provided Provided in class 10

Velcro Insulation Provided Provided in class 10

Insulation Provided Provided in class 21

Test Batteries $8.38 Radio Shack N/A

Aluminum Tape Provided Provided in class 10

Arduino Mega 2560 $58.95 SparkFun 38

Multi-Layer Insulation Provided Provided in class 2

Humidity Sensor HIH-4030 Breakout (2)

$33.90 SparkFun 2

Barometric PressureSensors-BMP085 Breakout (2)

$39.90 SparkFun 20

Budget

Test Name Specifics Date

Structure Tests Perform Structure Tests (whip, roll, drop)

Oct 6, 2011

Cockroach Containers

Test the cockroaches containers (condensation potential, strength)

Oct 6, 2011

Isolation Test Test cockroaches to get base data (temperature they freeze at, livability in containers without food or water for extended periods of time)

Oct 6, 2011

Cooler Test (structure, hardware, and cockroaches freezing)

Oct 21, 2011

Day in the life (DITL) Testing Camera functionality, hardware functionality, ensure the entire satellite is integrated and functional.

Oct 21, 2011

Integration and final testing

Integrate subsystems and perform final testing

Oct 19-24, 2011

Test Plan

• Testing so far:• Drop Test

• Testing to be done:• Drop, Whip, & Roll Test• DITL and Cold Test• Isolation Test

Test Plan

. Most detrimental condition

. Effects at important altitudes

. 12,200 meters . Survival of cockroaches

Expected Results

Project Lead Assistant Design Devan Crawford Build Devan Tanya Budget Dylan Jannine Programming Crawford Jacob Hardware Jacob Crawford Structural Testing Tanya Devan Cockroach Testing Dylan Tanya Hardware Testing Jacob Dylan Integration Jannine (members are responsible for their subsystem)

Team Organizational Chart

Project Lead Assistant

Design Devan Crawford

Build Devan Tanya

Budget Dylan Jannine

Programming Crawford

Jacob

Hardware Jacob Crawford

Structural Testing

Tanya Devan

Cockroach Testing

Dylan Tanya

Hardware Testing

Jacob Dylan

Integration Jannine (Members are responsible for their subsystem)

. Weight . Safety . Time . Container Strength . Electrical Connections

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