Security system including a daughter station for monitoring an area and a remote parent station connected thereto

  • US 4,651,143 A
  • Filed: 06/26/1985
  • Issued: 03/17/1987
  • Est. Priority Date: 09/25/1984
  • Status: Expired due to Fees
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First Claim
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1. In a security system including a daughter station unit installed at a site to be monitored for trespass upon said site and a parent station unit installed at a monitoring site remote from the daughter station unit and connected with the daughter station unit through a signal transmission path, said system comprising:

  • a sensor installed at the site to be monitored for sensing a trespass upon a predetermined region and outputting a signal;

    a television camera positioned to produce an image of said predetermined region, said camera being started by said signal;

    a video recorder at the site to be monitored connected to said television camera for recording the image produced by said television camera;

    means responsive to said signal output by said sensor for transmitting said signal from said daughter station unit to said parent station unit through said signal transmission path; and

    means at said parent station for producing a display, upon receipt of said signal in response to said received signal;

    said system further comprising a plurality of sensors for monitoring a plurality of different conditions and said daughter station unit including means for converting the outputs of said plurality of sensors and that of said sensor for sensing a trespass into serialized codes; and

    means for transmitting said serialized codes over said signal transmission path to said parent station unit;

    said system further comprising a monitoring panel connected with said parent station unit for displaying the output of each of said sensors;

    said signal transmission path being capable of transmitting only the signals from said plurality of sensors and from said sensor for sensing a trespass.

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