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Sensor suite and communication system for cargo monitoring and identification

  • US 7,019,640 B2
  • Filed: 05/19/2003
  • Issued: 03/28/2006
  • Est. Priority Date: 05/19/2003
  • Status: Expired due to Term
First Claim
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1. A system for monitoring a cargo container comprising:

  • a sensor module mounted in said container, said module including one or more sensors and first means for transmitting data from said sensor, said first means including a first transceiver, each transceiver being capable of receiving signals from other sensor modules to relay signals of a particular module in a daisy chain fashion to and from the central monitoring system;

    a central monitoring system having second means for receiving said data and third means for processing said data; and

    means for preventing circular loops and dead ends in a communication chain from a sensor module to said central monitoring system.

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