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Security system for cargo trailers

  • US 20060117820A1
  • Filed: 11/14/2005
  • Published: 06/08/2006
  • Est. Priority Date: 02/06/2003
  • Status: Abandoned Application
First Claim
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1. A method of operating a security system for a cargo container including a cargo door, a latch, and an electronic controller configured to control movement of the latch, the method comprising:

  • monitoring the cargo door to detect a change in the cargo door'"'"'s position;

    monitoring the latch to detect a change in the latch'"'"'s position;

    determining whether the latch or the cargo door changed position;

    determining whether user input regarding the position of the cargo door or the latch is received within a predetermined time period; and

    moving the latch to a first position in response to either the latch or the door changing position and a failure to receive user input, within a predetermined time period, regarding the position of the cargo door or the latch.

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