WORKING PRINCIPLE
The power supply status monitoring sensor is installed in the chassis to monitor the current status of the power supply circuit. When the current of power supply circuit is less than the preset current threshold, the current status recorded by the sensor changes, and the state quantity. The MCU sends alarm information through the LoRa wireless network after processing; when the current of the power supply is greater than the preset current threshold, the alarm information is no longer sent. The sensors report data once at a certain interval.