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Can’tTouchThis

Can’tTouchThis

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Can’tTouchThis

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  1. Can’tTouchThis KSM Hammer Jun Wei Chuah Shihong Ng Ming Yang Koh

  2. Architecture Block Diagram

  3. State Chart for Laptop

  4. State Chart for Microcontroller

  5. State chart for RFID reader State chart for Buzzer State chart for Accelerometer

  6. List of Use Cases • TearDown • Bootstrapping

  7. List of Use Cases (continued…) • User moves laptop • User leaves laptop

  8. List of Use Cases (continued…) • User approaches laptop • Thief moves laptop

  9. Risks • R1. Compatibility between RFID reader and Telos Motes • R2. Compatibility between voltage regulator, RFID reader and Telos Motes • R3. Compatibility of rechargeable battery with rechargeable mechanisms on Telos Motes • R4. Real-world performance of RFID reader with respect to range • R5. Constraints with respect to the ports available on Telos Motes • R6. Difficulty in finding suitable algorithms differentiating significant and non-significant movements • R7. Usage under different laptop operating environments

  10. Mitigation of Risks • Worst case usage of Zigbee protocol and Telos Motes for passive device • (R1, R2, R4) • Requires device to always be plugged into laptop • (R3) • Usage of 18-348 board to meet specific port requirements • (R5) • Usage of multiplexers to meet port requirements • (R5) • For worst case, any slight movement would trigger alarm • (R6) • Requires Windows as main Operating System • (R7)