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MOTION SENSING IN A WIRELESS RF NETWORK

  • US 20070296571A1
  • Filed: 06/13/2007
  • Published: 12/27/2007
  • Est. Priority Date: 06/13/2006
  • Status: Abandoned Application
First Claim
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1. A sensor system, comprising:

  • a sensor module comprising a sensor attached to a person or object and operable to measure data of the person, a microprocessor operable to process the sensor data and to generate an alert signal when the sensor data indicates an abnormal condition of the person or object, and a wireless transceiver operable to wirelessly transmit the sensor data;

    a network of wireless transceiver nodes distributed at fixed locations to receive the sensor data wirelessly transmitted by the sensor module; and

    a central monitor in communication with the network of wireless transceiver nodes to communicate with the sensor module and operable to obtain a location of the sensor module based on signal strengths of a signal generated by the sensor module and received by a plurality of wireless transceiver nodes close to the sensor module.

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