关键词: 压力监测, ZigBee, WiFi, 丢包率, 传输距离

Abstract: Aiming at the complexity of current monitoring system of hydraulic support cable wiring, and the defects of ZigBee wireless technology short transmission distance, low penetrability and high packet loss rate, a hybrid network hydraulic support pressure monitoring system based on ZigBee+WiFi is designed. The sensor nodes of the system use the ZigBee protocol to send data, and then pass the ZigBee to the WiFi gateway to send data to the host computer by WiFi protocol, and the pressure data is finally monitored and saved through the host computer. Tested, the ZigBee+WiFi hybrid network can control the packet loss rate below 5%, and the transmission distance can be extended to 300 meters, which provides a reliable and effective solution for monitoring the pressure of the downhole hydraulic support.