Fire hazard monitoring system and LoRa-based fire hazard monitoring method

The present invention provides a fire hazard monitoring system and an LoRa-based fire hazard monitoring method, and belongs to the fire-fighting field. The fire hazard monitoring system of the presentinvention comprises a fire hazard monitoring device, a gateway, a cloud sever and a monitoring terminal, wherein an MCU, a wireless transmitting-receiving module, an alarm module, a smog combustiblegas sensor, a flame sensor, a temperature sensor, a power supply management module and a battery connected with the power supply management module are arranged in the fire hazard monitoring device, and the MCU is separately connected with the wireless transmitting-receiving module, the power supply management module, the input end of the alarm module, the smog combustible gas sensor, the flame sensor and the output end of the temperature sensor; the fire hazard monitoring device is connected with the cloud server via the gateway, the registration information of the fire hazard monitoring device is stored in the cloud server, and the monitoring terminal is connected with the cloud server. According to the present invention, by the multi-sensor multiplexing detection, the fire hazard alarm precision and accuracy are improved substantially.