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MDR Keeping The Secret

MDR Keeping The Secret. Group: Adebayo Adeyemi, Joseph Hayward, Mark Kohls, Simon McAuliffe Advisor: Dennis Goeckel. Brief Overview. Step 1 : Send test signal to desired radio. Step 2 : RX radio sends back reply signal. Friends measure this signal strength.

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MDR Keeping The Secret

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  1. MDRKeeping 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 Receiver Antenna Microcontroller Transmitter Speaker

  6. MDR Demo The goal for MDR will be to demonstrate measurement of receive signal and transmitting noise. Step 2: RX radio sends back reply signal. Friends measure this signal strength. Step 1: Send test signal to desired radio. Step 3: TX radio sends out message. Friends not in range transmit noise.

  7. Statistical Analysis Computer Simulation Results (full area) Percentage of Coverage Number of friends

  8. Statistical Analysis Computer Simulation Results (radius) Percentage of Coverage Number of friends

  9. Design Challenges • Noise • Appropriate Signal Threshold • Duration for transmission • Variable transmission strength • Making overall system compact • SMD vs. Through Hole components • Demonstrate functioning system • Computer display of radio activity

  10. Team Roles • Adebayo – Hardware design, hardware production, radio debugging • Mark – Hardware design, programming radio unit, radio debugging • Joe – Report, simulations calculations, production • Simon – Simulation programming, GUI for final demonstration, radio programming

  11. What is next • Use of Received Signal Strength • Complete protocols for all radios • Battery choice and integration • Field testing • GUI for Final Demonstration • Fabrication of Radios

  12. Questions?

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