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Alarm system

  • US 7,893,826 B2
  • Filed: 02/07/2005
  • Issued: 02/22/2011
  • Est. Priority Date: 02/05/2004
  • Status: Expired due to Fees
First Claim
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1. An alarm system intended to trigger an alarm signal upon deviation from at least one environment-dependent reference predetermined for a specific environment, the alarm system comprising:

  • at least one portable unit having a size not greater than a mobile telephone and intended to be placed in said environment, each portable unit comprising;

    a sensor system that records a normal state of the environment when placed in the environment, the predetermined environment-dependent reference being comprised of at least a recorded sound/vibration image of the normal state of the environment in which the at least one portable unit is placed, the sensor system comprising an accelerometer/silicon crystal, microphone and temperature sensor, said accelerometer being triaxial,a processor member connected to the sensor system that compares signals received from the sensor system and said predetermined environment-dependent reference and that causes an alarm to be triggered upon determining an occurrence of a predetermined deviation of the signals received from the sensor system from the predetermined environment-dependent reference,a communication member of a unique identity connected to the processor member for wireless communication at least upon the triggering of the alarm signal, anda positioning member connected to the processor member that indicates, at least upon the triggering of an alarm signal, the position of said unit, anda memory member connected to the processor member via a distributed computer network, the memory member storing said predetermined reference for dynamic and interactive update and development for different purposes by maneuvering via fixed and/or mobile telephony and/or radio and/or computer unit.

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