1. Home Security With AD HOC Networks

2. The Home Security Problem

3. rmote2500

4. Block Diagram Microcontroller Sensor Radio Central Node

5. Sensor Types Ultra-sonic Magnetic Vibration Infrared Optic Low maintenance 1259677 Easy installation 439877 Accurate detection of intruders 20104897 Low false alarm rate 1699268 Doesn’t get in the way 8510977 Hard to detect 12310977 Difficult to bypass 16106887 Cost 12581077 Sum/Rank 100712760724740716 Weight Ultra-SonicMagnetic Vibration InfraredOptic

6. Example Sensor Network

7. MicroMag 3-Axis Magnetometer Features: 500uA @ 3.3V DC Field measurement range +/- 1100uT Resolution as low as 0.015uT SPI interface - no additional circuitry needed

8. Accelerometer – ADXL202JE +/-2g

9. PIR Motion Sensor Module