Patent ID: 6127939
Filing Date: 2000-10-03
Classification: B60R,B60T

Abstract:
A communications system for a trailer for communicating a status of a subsystem positioned on the trailer, the system comprising:a power bus which supplies electrical power to the trailer;spread spectrum signal producing means, responsive to a status signal from the subsystem and positioned on the trailer, for producing a spread spectrum data communications signal representing the status of the subsystem on the power bus, wherein said spread spectrum signal producing means comprises means for producing said spread spectrum data communications signal from the status signal; andstatus determining means, remotely positioned relative to the trailer and responsive to the power bus, for determining the status of the subsystem from the spread spectrum data communications signal, wherein said status determining means comprises:spread spectrum signal receiving means, responsive to the power bus, for receiving said spread spectrum data communications signal; andmeans, responsive to said spread spectrum signal receiving means, for determining the status of the subsystem from the received spread spectrum data communications signal.