TRAIN CAR-TO-CAR COMMUNICATION DEVICE

摘要

A communication network between train vehicles which can sustain communication processing without interrupting the same when compositions of different composition direction are united. The communication apparatus between train vehicles includes a terminal, a transmission path in composition connected with terminals in the same composition for transmitting information, an inter-composition communication relay device connected with the transmission path in composition for receiving first information from a terminal in the composition to transmit the first information to other adjacent composition and receiving second information from the other adjacent composition to transmit the second information to a terminal in the composition; and an inter-composition transmission path for connecting the inter-communication relay devices in the adjacent compositions to transmit information. The inter-communication relay device has a composition direction judgment means for judging the difference in composition direction between the composition of the transmission origin of the received information and the composition concerned, and a direction dependence information rewriting means for rewriting direction dependence information included in the received information so as to reverse the same information when the composition direction judging means judges that the composition direction is different.