Avionics Home Page
The Avionics team is currently working on 'AV3' class hardware and firmware for the Launch Vehicle No. 2c airframe. The AV3 hardware is run by an Intel Atom-based PCI-104 flight computer (FC) attached to various sensor and actuator nodes using Ethernet as a low-latency safety critical bus and USB as an easy bulk-data bus. The sensors and actuators include a GPS, IMU, power system, and amateur TV broadcast.
- If you're new to the avionics team, or you want some information on a previous sytem, please see our Introduction to PSAS Avionics Page, and then see our list of project ideas below.
- For more in depth reading about the avionics nodes, see the 2006 Capstone Project Final Report (CapstoneLV2bProjectReport).
Avionics System version 3
Here are the block diagrams of our avionics system:
Here are the current subsystems in the AV3 avionics system:
- Flight computer
- Sensor/actuator nodes
These projects are undergraduate engineering capstones that PSAS has sponsored:
- Capstone 2012 project: RocketNet hub (Power and Ethernet distribution board)
- Capstone 2010 project: Flight computer carrier board
- Capstone 2009 project: The Avionics Power Supply (APS)
- Capstone 2006 project: The node 4 generic front end
Deprecated and unorganized subsystems:
- AV3 Power System
- PV-700 Digital Video Recorder
- ARTS-2 Flight Computer
- New LV2c recovery node
- IMU Calibration
- Avionics to-do list
- Avionics to-get list
- Bob-4 Video Overlay Board
- Airframe Test Computer Info
- Generic USB node front end: 2006 Capstone Project
- OLD: Amateur TV System: Broadcasts NTSC video with overlay at 1.25 GHz.
- OLD: Avionics Power System: power switches, battery and bus monitoring
- Inertial Measurement Unit: inertial sensors (also pressure and temperature sensors)
- Magnetometer: 3D sensing of the Earth's magnetic field
- OLD: Recovery Node: Battery backed up 2m radio receiver and pyrotechnic actuators
- ST Boards: STM32-E407 OlimexSTM32-E407
- Launch Tower:
- Launch Tower Computer (LTC): A Linux-based x86 PC104 stack with Lucent Orinoco 802.11b card and CAN.
- 24dBi 2.4GHz 802.11b parabolic dish antenna ("BBQ" grill antenna).
- Launch Tower Relay (LTR) board: PIC18F458-based CAN node with four relays and some analog sampling.
- RocketReady Relay (RRR) board: PIC18F458-based board which provides rocketready relay interlock in firing chain.
- Launch Igniter Circuit: igniter circuit for launch igniter.
- Umbilical cord: Connects LV2 to the electronics box. Provides shore power, includes rocketready relay interlock.
- Launch Tower Power System:Solar array, charge controller, and battery
Avionics Hardware Tools
- EagleCad: Cadsoft's EAGLE schematic capture/PCB CAD program
- LPKF 91 router information
Avionics Software Tools
- To develop firmware on the rocket nodes, you'll need to get set up for .
- Deprecated: Page for the software for the sensor nodes
- Deprecated: Getting up and running with Olimex LPC2148, openocd, eclipse etc
- Deprecated: Yet another getting started tool chain and development environment setup
- Deprecated: LPC USB Isochronous Mode
Other Advanced Amateur Avionics Systems
- MARS Society: http://www.ukrocketman.com/rocketry/gimbal.shtml
- Robert DeHate: http://www.geocities.com/rdh82000/L3/
- MIT's Autonomous Helicopter: http://web.mit.edu/%7Eferon/Public/www/DASC.pdf
From Spencer Webb of AntennaSys:
- Webb's Law of Project Complexity: "All good projects go from simple to insanely complex, then back to simple after a required epiphany."
- Corollary to WLPC: "If the project never gets to the insanely complex stage, it is probably not worth doing."
- Second Corollary to WLPC: "If the epiphany never comes, the project will likely be an insanely complex failure."
Avionics Team Meeting Minutes
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