Wireless Remote High Temperature Monitoring System for Xinjiang Coal Fire Field

In view of monitoring underground temperature of coalfield fire area, the real time, dynamic, remote and high temperature Wireless Sensor Networks (WSN) monitoring system equipped with a sustainable energy was developed, including network model, software and hardware platform. High temperature monitoring node We use JN5139-Z01-M03 chip as the core of high temperature monitoring node, design minimal peripheral circuit meeting demand of system to reduce energy consumption, take advantage of MAX31855 temperature signal conditioning chip connected with K type thermocouple to collect temperature of coalfield area, utilize solar power supply device with charging and discharging protection circuit to prolong the network lifetime. The temperature signal of coalfield area be remotely transferred using GPRS (General Packet Radio Service) through mobile communication network and Internet network. WSN deployed in Xinjiang coalfield has continued to work for 15 months, it can collected locale high temperature data on time and sent to Urumqi monitoring center server. Monitoring results show that the system can realize the dynamic and real-time monitoring.