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Security and energy control system

  • US 6,700,224 B2
  • Filed: 11/01/2002
  • Issued: 03/02/2004
  • Est. Priority Date: 08/04/2000
  • Status: Expired due to Term
First Claim
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1. A presence detection and control system comprising:

  • a card reader for generating an identification (ID) code in response to detecting an ID card;

    a motion sensor for generating a motion signal in response to detecting motion in a field of view of the motion sensor;

    a temperature sensor for generating a temperature signal based on a temperature detected thereby;

    a transmitter for generating at least one wireless control signal based on the ID code, the motion signal and/or the temperature signal;

    a first relay connected between an energy source and an energy consumption device;

    a first receiver responsive to a first wireless control signal from the transmitter for causing the first relay to connect the energy source to the power consumption device;

    means for conveying a message on a communication line; and

    a second receiver responsive to a second wireless control signal from the transmitter for causing the conveying means to convey the message on the communication line, wherein the conveying means includes a first controller for producing the message based on the second wireless control signal, transmitting means responsive to the first controller for transmitting the message on the communication line and a second relay connected between the transmitting means and the communication line, the second relay responsive to the first controller for connecting the transmitting means to the communication line.

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