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FPR Keeping The Secret

This document outlines the specifications and requirements for a portable radio communication system capable of secure voice transmissions. Key steps include sending a test signal, measuring reception strength, and transmitting messages over distances of up to 300 meters while maintaining a battery life of at least 12 hours. The system is designed to operate during movement with a secure communication protocol that minimizes interception rates to below 10%. Challenges addressed include noise management, proper signal thresholds, and data reliability. A demonstration and schematic details are provided for testing.

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FPR Keeping The Secret

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Presentation Transcript

  1. FPRKeeping The Secret Group: Adebayo Adeyemi, Joseph Hayward, Mark Kohls, Simon McAuliffe Advisor: Dennis Goeckel

  2. Brief Overview Step 1: Send test signal to desired radio. Step 2: RX radio sends back reply signal. Friends measure this signal strength. Step 3: TX radio sends out message. Friends not in range transmit noise.

  3. System Requirements • Battery life of at least 12 hours • Receive and transmit • Operate while walking • Operate up to 300 meters. • Receive signal with 95% success rate. • Voice Transmission Bandwidth • Maintain secure communications • Less than 10% interception rate • Handheld and less than 2lbs.

  4. Software Requirements RX Radio TX Radio RX Radio RX Radio

  5. Radio Diagram Transceiver Microphone Transmitter Antenna Microcontroller Receiver Speaker

  6. Design Challenges • Noise • Appropriate Signal Threshold • Duration for transmission • Variable transmission strength • Procuring reliable data • Demonstrate functioning system • Computer display of radio activity • Consistent receiving and transmitting

  7. Schematic

  8. PCB

  9. Testing • Conclusion difference of .1 volt

  10. Simulation Data

  11. How Data Was Found

  12. How Data Was Found Distance

  13. How Data Was Found Angle

  14. How Data Was Found If wall wallhit++

  15. How Data Was Found If wall wallhit++

  16. How Data Was Found

  17. Radio Program Flow Chart

  18. GUI Demonstration

  19. Radio Demonstration

  20. System Requirements • Battery life of at least 12 hours • Receive and transmit • Operate while walking • Operate up to 300 meters. • Receive signal with 95% success rate. • Voice Transmission Bandwidth • Maintain secure communications • Less than 10% interception rate • Handheld and less than 2lbs.

  21. Questions?

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