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Monitoring terminal device

  • US 7,639,158 B2
  • Filed: 05/27/2004
  • Issued: 12/29/2009
  • Est. Priority Date: 05/28/2003
  • Status: Active Grant
First Claim
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1. A monitoring terminal device;

  • comprising;

    a sensor unit;

    a wireless transmitting unit to transmit, by wireless, an output from said sensor unit; and

    a control unit to start operations of said sensor unit in a specified cycle and to have said sensor unit operate for a specified period of time and to start operations of said wireless transmitting unit in a cycle being longer than said specified cycle and to have said wireless transmitting unit to perform operations of communications for a specified period of time,wherein said control unit, by learning a frequency of a change in said output from said sensor unit, changes starting cycles of said sensor unit.

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