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Failure detection method and apparatus for sensor network

  • US 6,714,019 B2
  • Filed: 01/24/2002
  • Issued: 03/30/2004
  • Est. Priority Date: 03/09/2001
  • Status: Expired due to Fees
First Claim
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1. A failure detection method for a matrix sensor network comprising:

  • connecting a plurality of pressure sensitive sensors to row lines and column lines in a matrix, each sensor changing a resistance thereof according to a pressure applied thereto, characterized by;

    connecting a monitoring device to at least one of ends of two row lines and ends of two column lines to form a series circuit;

    applying a voltage to the series circuit;

    checking a voltage of the series circuit to detect failure of the matrix sensor network;

    connecting one end of the series circuit to a pull-up resistor and grounding the other end;

    applying the voltage to the series circuit through the pull-up resistor; and

    checking the voltage across the monitoring device.

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