XU Mei ling , ZHAO Guo jun

 

(Key Laboratory of Special Equipment and Advanced Manufacturing Technology, Ministry

 

of Education, Zhejiang University of Technology, Hangzhou 310014, China)

 

 

Abstract: Aiming at the problems of too many communication lines, poor stability, high cost and high failure rate caused by using many cables in traditional group control elevator, the wireless communication technology was investigated to elevator group control communication. After the analysis of structure and working principle of the group control system, the ZigBee as a group control module of every elevator′s main control board while the STM32W108 chip as the core of it, communication relationship and process between one group control module and the other group control module were established. By programming which was wrote by the KeiluVision4 and building a test platform, a wireless group control communication system was designed to elevator. Through the waveform graph data frame of time intervals, verified the reliability of communication. The results indicate that compared with traditional elevator group control communication technology, This system design under the premise that guarantees the normal communication, not only improves the stability of communication, but also reduces the use of cable, there is an important practical significance to current group control the development of communication technology.

 

Key words: ZigBee; wireless communication; group control system