Development of Low Power Transmission Line Clamp Temperature Measurement System Based on Lora Communication

In order to monitor the temperature of the transmission line clamp, a low-power transmission line clamp temperature measurement system based on Lora communication is developed in this paper. The system uses lowpower STM32L446 as the main chip of the controller, SX1268 series low-power Lora chip, and PT100 temperature sensor. After the gateway collects and monitors the temperature, it is transmitted to the remote platform through the 4G network. The experimental test shows that the Lora transmission distance of the system is 150m. According to the set mode, the button battery can work for 5 years, the high temperature of 150°C can work normally for two hours, and the measurement accuracy is 0.5°C, which has the advantage of differentiation.