Elevator wireless communication system based on ZigBee technology
                                                       YE Kai, ZHAO Guo jun, TANG Chen yu
（Key Laboratory of Special Equipment and Advanced Manufacturing Technology， Ministry of Education， Zhejiang University of Technology， Hangzhou 310014， China）

Abstract: Aiming the traditional elevator control system by complicated communication cable， difficult to troubleshoot the problem， and the cost of cable is more and more expensive with the increase of the floor， through the analysis of communication demand in elevator control system， a new elevator wireless communication scheme based on ZigBee technology was put forward. The overall communication scheme of the system was designed， the structure of ZigBee wireless communication network was established， and the system communication protocol was formulated. The system wireless communication feasibility， software communication protocol， the response of the system when the wireless communication is abnormal， system delay in emergency signal transmission and wireless communication distance under different antennagain were tested by writing programs and building test platform.The results indicate that relative to traditional elevator cable communication， the wireless communication system can not only establish a stable communication platform， but also achieved no traveling cable in the elevator， there is an important practical significance to current cable elevator communication technology.

Key words: traveling cable; ZigBee; wireless communication