DISASTER COMMUNICATION SERVICE PROVIDING SYSTEM USING VISIBLE LIGHT COMMUNICATION CAPABLE OF EXECUTING SMOOTH COMMUNICATION BY USING A POWER LINE COMMUNICATION NETWORK AND A METHOD THEREOF

摘要

PURPOSE: A disaster communication service providing system using a visible light communication and a method thereof are provided to utilize a communication network in a ship by constructing a back-up communication network with a power line communication network supplying power for the visible light communication.;CONSTITUTION: LED(Light Emitting Diode) lighting communication units(216,218,228,230) execute communication through a network by forming the network with a plurality of LEDs(Light Emitting Diodes) through a visible light communication transmission and reception unit. The LED lighting communication units sense the state of the network. The LED lighting communication units control the plurality of the LED lightings. A ship network unit(210) executes power line communication by connecting to the LED lighting communication units. The ship network unit checks errors and power states in the LED lighting communication units. The ship network unit transmits the checked information to the outside.;COPYRIGHT KIPO 2013;[Reference numerals] (216) LED lighting communication unit #2; (220) Control unit; (224) Visible light communication transceiving unit; (225) LED element light emitting unit; (228) LED lighting communication unit #3; (230) LED lighting communication unit #4; (231) Mobile node 1; (AA) Power line; (BB) Voltage sensor; (CC) Current sensor; (DD) Illuminance sensor; (EE) Temperature sensor; (FF) Mobile node N;