NETWORK SYSTEM FOR INTERCONNECTION OF ELECTRIC RAIL PASSENGER CARS USING IP BASED MODEM EQUIPMENTS

摘要

PURPOSE: A network system of an electric train using IP based modem equipment for building fast Ethernet communication network at low cost is provided to secure data transfer rate at high rate through IP based modem using power line or communication line. CONSTITUTION: A dedicated communication line(8) is distributed for connecting a communication device within each carriage. A modem(9) loads signal of power line on power line(7). A communication is performed by using dedicated power line. A communication is performed through a modem an actuator uses the power line between vehicles as the communication line. The power line is classified into use power line and preliminary power line. The blocking filter is installed on the use power line.