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Team RAPTORSREMOTE AVIONICS PACKET TRANSCEIVER WITH OBSERVATIONAL REAL-TIME SENSING
Joe TrefilekJeff Kubascik
Paul SchefflerMatt Rockey
Project Overview
• Remotely operated drone aircraft with a realRemotely operated drone aircraft with a realRemotely operated drone aircraft with a realRemotely operated drone aircraft with a real----time flight data acquisition system. time flight data acquisition system. time flight data acquisition system. time flight data acquisition system.
• Custom radio transceiver and sensing Custom radio transceiver and sensing Custom radio transceiver and sensing Custom radio transceiver and sensing equipment will relay inertial and navigation equipment will relay inertial and navigation equipment will relay inertial and navigation equipment will relay inertial and navigation data. data. data. data.
• Data transmitted to ground station and Data transmitted to ground station and Data transmitted to ground station and Data transmitted to ground station and displayed onscreen in realdisplayed onscreen in realdisplayed onscreen in realdisplayed onscreen in real----time.time.time.time.
• The ground station will also send control The ground station will also send control The ground station will also send control The ground station will also send control commands from a pilot to the aircraft.commands from a pilot to the aircraft.commands from a pilot to the aircraft.commands from a pilot to the aircraft.
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Project-Specific Success Criteria
1. An ability to wirelessly transmit and receive packet data.
2. An ability to relay aircraft position and orientation utilizing inertial and navigational sensors.
3. An ability to capture images and relay them serially to the ground station.
4. An ability to control the aircraft servo motors via a microcontroller interface.
5. An ability to amplify an RF signal to 1 watt PEP of transmission power.
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Block Diagram
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Major Components
• Microcontroller: PIC24FJ256GB106
• RF Transceiver: CC1101
• Camera: SEN-09334
• GPS: GPS-08975
• 3-Axis Accelerometer: SEN-00252
• 2-Axis Gyroscope: SEN-09413
• Barometric Pressure Sensor: SEN-08161
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Microcontroller Selection
Microchip PIC24FJ256GB106
• Extensive development experience
• Excellent debugging support
• Meets peripheral requirements
• 64 pin TQFP
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RF Transceiver Selection
Texas Instruments CC1101
• Date rate up to 500 kbps
• Amateur band: 420-450MHz
• Greater propagation distance
• Must comply with Part 97 of FCC Regulations
• Maximum power transmission 1W PEP (Section 97.215)
• Amateur radio operator license required
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Packaging Design – Aircraft
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Packaging Design – Ground Station
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• Less restricted than aircraft
• Must be portable and reasonably rugged for field use
• Diecast aluminum box; acts as ground plane and provides RF shielding
• 6.73” x 4.76” x 3.98”
• Powered by external 7.5 V Battery
• USB Port on one side
• Antenna and Status LEDs on top
Schematic – Power Supply
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Schematic – µC
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Schematic – Servo Control
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Schematic – RF Transceiver Section
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Schematic – RF Amplifier Section
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Schematic – Sensor Board
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PCB Layout – Power Supply
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PCB Layout – µC and Servo Control
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PCB Layout – RF Section
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PCB Layout – Sensor Board
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Software - Preliminary Design
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Software – Development Status
• Most computation intensive – Kalman filter
– Researched
– Open-source skeleton algorithm found
– Variable location: Ground or Plane uC
• Second greatest – Sensor interfacing
– Preliminary pseudocode created for all protocols
and handshaking
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Product Launch Timeline
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Things Yet to Come…
• Mounting holes for standoffs (layout)
• Add More Descriptive Connector Labels to
the silkscreen for the off-board Connectors
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