Design of Wireless Monitoring System for Mine Temperature and Humidity Based on nRF401

For the mine safety situation in China,a wireless monitoring system based on the radio frequency chip nRF401was proposed.It was composed of the multi field terminals and the monitoring center.The field terminal used SHT11 in regular and random way to detect temperature and humidity inside the mine,and used nRF401 module to complete wireless data communications with the monitoring center.The experimental testing results show that:the system monitors the temperature range of-10~80℃ and the error humidity of ±3%,and can realize real-time,reliable temperature and humidity data transmission.