SHIP'S COMMUNICATION SYSTEM USING MULTIPLEX LINE COMMUNICATION

摘要

PURPOSE: A communication system in a ship using multiplex line communication is provided to perform communication in a ship itself using a power line without a separate communication line in the ship. CONSTITUTION: A PLC(Power line carrier) modem(120) is connected to an outlet in a ship(100) to transmit a data signal of TCP/IP type to a power line pre-constructed on the same phase. An MLC(Multiplex line carrier) modem transmits a data signal of TCP/IP type using a broadcasting line in the ship. A master control unit(110) bridges a data signal of the PLC modem and a data signal of the MLC modem through an Ethernet switch by receiving a power line signal or a telephone line signal through the PLC modem or the MLC modem.