PROBLEM TO BE SOLVED: To enable a power line communication system to perform full duplex communication while avoiding an increase in a communication line.SOLUTION: In a power line communication system 1, a master communication device 2 includes voltage switching circuits 2d, 2f for switching supply voltage to power lines 5, 7. Slave communication devices 3, 4 transmit image information to the master communication device 2 by differential transmission, and the master communication device 2 transmits winker information to the slave communication devices 3, 4 by switching supply voltage to the power lines 5, 7.
【課題】電力線通信システムにおいて、通信線の増設を回避しながらも、全二重通信を行えるようにする。【解決手段】電力線通信システム1において、マスタ通信装置2は、電源線5、7への供給電圧を切換える電圧切換回路2d、2fを有する。スレーブ通信装置3、4からマスタ通信装置2への画像情報の伝送を差動伝送で行い、マスタ通信装置2からスレーブ通信装置3、4へのウィンカー情報の伝送を電源線5、7への供給電圧を切換えることで行う。【選択図】図1
POWER LINE COMMUNICATION SYSTEM AND MASTER COMMUNICATION DEVICE
電力線通信システム及びマスタ通信装置
2016-01-18
Patent
Electronic Resource
Japanese
IPC: | H04B TRANSMISSION , Übertragung / B60Q ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL , Anordnung von Signal- oder Beleuchtungsvorrichtungen, deren Einbau oder Halterung oder deren Schaltkreise bei Fahrzeugen allgemein / H04L TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION , Übertragung digitaler Information, z.B. Telegrafieverkehr |
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