home security with ad hoc networks. the home security problem

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Home Security With AD HOC Networks

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Page 1: Home Security With AD HOC Networks. The Home Security Problem

Home Security

With AD HOC Networks

Page 2: Home Security With AD HOC Networks. The Home Security Problem

The Home Security Problem

Page 3: Home Security With AD HOC Networks. The Home Security Problem

rmote2500

Page 4: Home Security With AD HOC Networks. The Home Security Problem

Block Diagram

MicrocontrollerMicrocontrollerSensorSensorRadioRadio

CentralNode

CentralNode

Page 5: Home Security With AD HOC Networks. The Home Security Problem

Sensor Types

Ultra-sonic Magnetic Vibration Infrared Optic

Low maintenance 12 5 9 6 7 7

Easy installation 4 3 9 8 7 7

Accurate detection of intruders 20 10 4 8 9 7

Low false alarm rate 16 9 9 2 6 8

Doesn’t get in the way 8 5 10 9 7 7

Hard to detect 12 3 10 9 7 7

Difficult to bypass 16 10 6 8 8 7

Cost 12 5 8 10 7 7

Sum/Rank 100 712 760 724 740 716

Weight

Ultra-Sonic

Magnetic

Vibration

Infrared

Optic

Page 6: Home Security With AD HOC Networks. The Home Security Problem

Example Sensor Network

Page 7: Home Security With AD HOC Networks. The Home Security Problem

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

Page 8: Home Security With AD HOC Networks. The Home Security Problem

Accelerometer – ADXL202JE +/-2g

Page 9: Home Security With AD HOC Networks. The Home Security Problem

PIR Motion Sensor Module