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Multi-station RF thermometer and alarm system

  • US 20020017988A1
  • Filed: 04/06/2001
  • Published: 02/14/2002
  • Est. Priority Date: 11/12/1997
  • Status: Active Grant
First Claim
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1. A single-channel RF weather monitoring and display system displaying information at one location representative of weather monitored at multiple, other locations remote from said one location, comprising:

  • a portable, battery-powered and hand-holdable weather station, deployable at each of said remote locations, including a housing;

    a sensor connected to said housing for measuring a predetermined parameter representative of the weather prevailing in the environ of said sensor at the location where said station may be deployed;

    an antenna mounted to said housing;

    means for setting station ID; and

    a processor-controlled transmitter mounted in the housing and coupled to said sensor, said station ID setting means and said antenna repetitively operative (1) to compile a data packet having information representative of station ID and of said weather parameter sensed by said sensor at said location where said station may be deployed, (2) to generate a unique schedule of at least one transmission times in such a way that the unique schedule of at least one transmission times does not overlap in time with that of other remote locations where portable, battery-operated and hand-holdable weather stations may be deployed and, in accord therewith, to schedule a time to transmit said data packet, and operative (3) to modulate a predetermined-frequency RF carrier wave to transmit said data packet at said scheduled time to enable at said one location contention-free receipt over said single-channel of data packets transmitted from said multiple, remote locations where portable, battery-powered and hand-holdable weather stations may be deployed.

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