APPARATUS FOR RESTORING NETWORK INFORMATION OF HOME NETWORK SYSTEM, AND METHOD THEREFOR - THE APPARATUS IS COMPRISED OF A NONVOLATILE MEMORY CAPABLE OF STORING REGARDLESS OF A POWER FAILURE, A CPU FOR PERFORMING A OPERATION FOR RESTORING NETWORK INFORMATION OF A SLAVE, A MASTER FOR TRANSMITTING NETWORK INFORMATION, AND A POWER LINE COMMUNICATION MODEM

摘要

PURPOSE: An apparatus for restoring network information of a home network system, and a method therefor are provided to perform again operations executed before slave equipments are reset, without necessity for setting up operations of the reset slave equipments by memorizing the state before the reset. CONSTITUTION: A master(34) controls each slave equipment(31,32,33). The master(34) stores network information related to equipment control and operation states on an EEPROM(Electrically Erasable and Programmable Read Only Memory)(342) by slave equipments(31,32,33). The master(34) judges whether the slave equipments(31,32,33) are reset due to an electricity failure or equipment abnormality. If so, the master(34) searches for the network information stored on the EEPROM(342). The master(34) transmits the network information related to operation states before the electricity failure to the reset slaves(31,32,33).