Patent ID: 7853662

Claim:
A network control system for home appliances provided with a low performance microcomputer of 8 bits or less having a serial communication function, the system comprising: a master and slave type communication structure, wherein at least one appliance in the group of appliances includes either at least one of a master device or a slave device; each master or slave device having a communication standard consisting of an application layer, data link layer, and physical layer; a network that connects the appliances through the serial communication function, wherein the appliances communicate with one another in the unit of a specified packet according to the communication structure and communication standard if a predetermined communication event is produced, wherein the communication standard of the at least one master device includes: an application layer having regions of application software, message construction and division, and message combination; a data link layer having regions of packet structure, confirmation of packet transmission, CSMA/CD, packet check, address check, and packet data reception; and a physical layer having a UART, wherein, the each master device or slave device on the network is recognized as an address which is divided into a physical address which includes at least a product code field and is fixed unchangeable, and a logical address field which is changeable through a communication, and wherein the logical address is used for classifying the master device or slave device of the same kind or as a group address.