DATA TRANSMISSION SYSTEM AND DATA TRANSMISSION METHOD

摘要

The present invention includes an electric wire laid in cars, a PLC modem connected with each electric wire and a terminal connected with each PLC modem. The terminal can communicate through the electric wire by using the PLC modem. When the cars are coupled with each other, the electric wires are electrically connected with each other and a new address is allocated to a control unit which has a unique address provided for each terminal.