Operation method for main unit of intelligent electric appliance serial bus

• Main Authors: YU DINGHUI, GAO WENLE
• Format: Patent
• Language: Chinese; English
• Published: 14.01.2009
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION

The invention relates to a working method of a communicating system, comprising: a main intellectual electrical appliance and an accessory intellectual electrical appliance, connected through an RS-485 bus; building data communication channels after searching the accessory intellectual electrical appliance by the main intellectual electrical appliance, then transmitting data package each other; transmitting an affirmed handshake package to the main intellectual electrical appliance after the accessory intellectual electrical appliance receives correct data; transmitting a unaffirmed handshake package to the accessory intellectual electrical appliance after the accessory intellectual electrical appliance receives error data, and retransmitting a data package to the accessory intellectual electrical appliance by the main intellectual electrical appliance; transmitting the affirmed handshake package to the accessory intellectual electrical appliance after the main intellectual electrical appliance receives the c