Patent ID: 6463367
Filing Date: 2002-10-08
Classification: B61B,B61L

Abstract:
A communications system for an electrified monorail system having an electrified monorail including at least one electrically conductive buss bar and a vehicle, said communication system comprising;a first programmable logic controller having an output configured be electrically coupled to at least one electrically conductive buss bar, said output assuming more than one state, said first programmable logic controller being programmed to sequentially set said output at a series of states corresponding to a message; and a second programmable logic controller configured to be carried by the vehicle having an input configured to be electrically coupled to said at least one electrically conductive buss bar, said second programmable logic controller being programmed to store in memory said series of states output from said first programmable logic controller through the at least one electrically conductive buss bar.