Application of ZigBee wireless communication technology in elevator car control system

ZHANG Jun, ZHAO Guojun, WEI Junyan, ZENG Xinyan

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

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

Abstract: In order to solve the problems of the complicated arrangement of wire in elevator installation and the long process of checking elevator for the elevator installed and repairers, the ZigBee wireless technology which was considered to be the communication mode between the lift car and the elevator control system was investigated. After the analysis of the circuit configuration of the elevator and the communication theory of the lift car, the communication connection between bp304 elevator controller and the car controller was established. A method was presented to improve the circuit of the elevator and optimize the communication program between bp304 elevator controller and the car controller. The communication between elevator controller and the car controller was evaluated on the bp304 elevator control system, ZigBee wireless modules applying STM32W108 radio frequency chip which were used in the elevator communication were tested.The experimental results show that the effective communication distance between the elevator controller and the car is about 140m, that meets the distance requirement in a building with 32 floors, correctness and completeness of data frames are ensured by the wireless communication program, so the communication between elevator controller and the car controller can be connected stably, the cost for the arrangement of wire is saved.

Key words: ZigBee; elevator; wireless communication;STM32F107;STM32W108