TRAIN COMMUNICATION SYSTEM AND TRAIN COMMUNICATION METHOD

摘要

A train communication system is provided with a communication relay device installed in each train car, and a communication terminal device connected to the communication relay device.  The communication relay device acquires car information indicating the position of a car, in which the communication relay device is installed, in the train.  With reference to a correspondence table that defines the correspondence relationship between car information and communication identification information, the communication terminal device determines communication identification information to be given to the communication terminal device on the basis of the car information obtained from the communication relay device.