Study on communication technology in intelligent electrical apparatus

The device net technology is analyzed from its physical layer characteristics, its format of data frame, and the carrier sense multiple access with non-destruction bitwise arbitration for data transmission in this paper. The Ethernet technology, which has application potential in the industrial field, is also demonstrated. The data transmission protocol in device net is presented. There is also a discussion on how to improve the reliability and the real-time quality of data transmission. Finally, the communication technology based on device net in intelligent electrical apparatus is researched.