The Intelligent Home Network-based Powerline Communications Technology Research

As known, the 21st century is an information epoch whose core is the network technologies. With the rapid development of the network technology, consuming electronic products are becoming combined with computer and communication technologies closely, which makes it possible to connect household appliances to Internet and to implement intelligence home networks. The slogan Bring the Internet to life brought forward by the corporation Echelon indicates that it is a trend to realize intelligence home networks with computer network developments in the household living field.In solutions to connect household appliances to computer networks, power lines are utilized as transmission medium without laying lines and the plug and play is also realized.Considering large communication interferences, bad transmission reliabilities and low transmission velocities, the theis designs a power line transceiver that is embedded into household appliances. You can connect computer networks if you connect your household appliances with power, the other words, "Plug and Play, PNP". In the meantime, analogue filterings and digital filterings are used to resist interferences.Besides, wrapped product codes and intertexture codes are used to reduce transmission errors.