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Infrared Communication System For Activating Power Drive Units In An Aircraft Cargo Loading System

  • US 20110273313A1
  • Filed: 07/21/2011
  • Published: 11/10/2011
  • Est. Priority Date: 11/13/2007
  • Status: Active Grant
First Claim
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1. A cargo loading system installed in a cargo compartment of an aircraft, the cargo loading system comprising:

  • a plurality of power drive units (PDUs), each of the PDUs comprising a light detector coupled to a PDU processor and configured to receive and process an incoming light signal;

    at least one main control panel (MCP) mounted on the aircraft;

    a controller connected by a wired network to the plurality of PDUs and also to the main control panel; and

    at least one wireless remote control handset configured to selectively emit a coded light signal;

    wherein;

    each PDU processor is programmed to;

    determine whether a coded light signal received at the light detector comprises a valid command signal from the handset to be provided to the controller; and

    provide an appropriate first command information signal to the controller, if the received coded light signal is determined to be a valid command signal from the handset; and

    the controller is programmed to;

    obtain the first command information signal provided by the PDU;

    determine which, if any, of said plurality of PDUs should be activated, in response to the first command information signal; and

    send a first PDU control signal to activate only those PDUs that the controller has determined should be activated in response to the first command information signal.

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