Direction of travel motion sensor

Details Direction of travel motion sensor Direction of travel motion sensor

G - Physics

08

B

G08B 13/181 (2006.01) G01S 13/56 (2006.01) G01S 13/62 (2006.01) G08B 13/19 (2006.01) G01P 13/00 (2006.01)

Patent

CA 2639441

A microwave direction of travel detector and method of detecting the direction of an intruder in a protected region. The microwave direction of travel detector transmits and receives, by a microwave transceiver a microwave signal directed toward a protected area. The microwave return signal is modulated by a moving target to produce a Doppler signal. The microcontroller monitors the output of the amplifier chain and stores the signal and compares it with previously stored signals. If the amplitude is increasing or decreasing over a preset time period, this would indicate that the target it approaching or receding respectively and an alarm would be generated by the microcontroller.

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