User Tools

Site Tools


high_altitude_balloon

High_Altitude_Balloon

Current state of the Cylon HAB

Payload

*Flight Computer HTC EVO 4G IOIO for Android Seeed Studio Relay Shield Barometric Altimeter- Parallax MS5607 Barometric Altimeter Cylon HAB Dock Board *GoPro Hero HD w/ SD Card *Power- Battery *VHF/UHF Radio- Yaesu VX-3R HT =====Communications===== *Wifi- Ground Ops (Possibility for future long range applications) *Cellular (Currently Disabled) *VHF- ARPS Tracking =====Power===== *Each of the following components has it's own battery: Flight Computer GoPro Hero VHF Radio *A 11.1V Battery Pack powers the following devices IOIO Relay Shield *Individual 9V Batteries power the pyrotechnics and Audible Alarm

Hotel Power Requirements

*Factors: Predicted Flight Time: 2 hrs Estimated Recovery Time: 4 hrs Battery: 11.1V LiPo Battery Pack Safety Factor: 2 Battery Requirement: 12 hrs {| class=“wikitable” style=“color: green;” !Loads!!Battery Type!!Power Requirement |- | *IOIO *Relay Board *Flight Computer ||Standard 9V||1W |} Power = Current x Voltage = 1W 1W/11.1V = 90 mA Charge = Current * Time = 90mA * 12hrs = 1081 mAh =====Recovery===== *Cut-Down Wire- Disconnects the Balloon from the Payload after a specified altitude or time. *Parachute System- Deploys parachute after payload falls below a specified altitude. *Marking Smoke- Ignites smoke to aid in tracking. *Alarm- Audible Alarm activates on loss of power or touchdown *Plaque- Just in case it winds up in Oz. =====Airframe===== *1/8“ plywood for structural support *Foam panel for insulation =====Lift===== *Helium Filled Weather Balloon =Ground Station= *Downlink Station Computer Wireless Bridge Directional Antenna *METOC Computer Spot Tracking Software Balloon Trajectory Software Google Maps for Route Guidance =Flight Theory= *Stage 1- Lift Balloon Travels through lower atmosphere. *Stage 2- Flight Balloon rises above weather systems. Curvature of the earth is visible *Stage 3- Disconnect Either at flight ceiling or immediately after burst detected, Arduino closes relay which disconnects payload from balloon. *Stage 4- Freefall Payload free falls back to ground. *Stage 5- Parachute Deployment At the designated altitude, Arduino closes relays which causes parachutes to be ejected and smoke to be activated. *Stage 6- Recovery Ground Crew retrieves payload based on predictions, real time GPS location data, audible alarm and smoke trail. =Crew Requirements= *METOC/Route Coordinator- Responsible for choosing launch site, running predictions, tracking *Chase Vehicle Driver Spotter *Tech Support =Project Benchmarks= Bold indicates steps currently in development. <strike>Striked</strike> indicates steps completed. *Develop Flight System <strike>Hello World for Android</strike> <strike>Access Sensors</strike> <strike>List All Sensors</strike> <strike>Display All Sensors</strike> <strike>Develop Control Loop</strike> <strike>Develop Dock Board</strike> <strike>Install IOIO</strike> <strike>Integrate Altimeter</strike> <strike>Log file</strike> <strike>Assemble Dock Board</strike> Test Altimeter Build TinyTNC Test APRS Range Test Relay outputs Develop Flight Logic Develop Web Based Control *<strong>Airframe Development</strong> <strike>Manufacture Base</strike>

  • Manufacture Top

<strike>Mount Android</strike> <strike>Mount GoPro</strike> Mount Battery Mount Dock Board Mount Recovery System Battery Pack *Recovery System Cut-down System Parachute Deployment System Smoke System Audible Alarm System *Build Insulating Airframe Cutouts for camera view-ports and recovery systems Identifying Plaque *Testing *Setup Tracking Vehicle *Setup Tracking Base Station

high_altitude_balloon.txt · Last modified: 2014/09/04 17:31 (external edit)