Design and Implementation of Coal Mine Wireless Sensor Ad Hoc Network Based on LoRa

This paper studies the application of wireless transmission of sensor data in coal mine monitoring. Based on LoRa wireless communication technology, wireless sensor network adopts ad hoc network architecture. The low-power design, long-distance transmission and self-organizing network communication of the sensor are studied. Compared with similar technologies, LoRa spread spectrum modulation technology can provide longer communication distance and lower power consumption. LoRa-based wireless sensor network in coal mine adopts clustering tree self-organizing network. The capacity of the network can be dynamically expanded. The network has strong anti-interference ability. This paper expands the application scenario of mobile Internet of Things technology, and improves the intelligent level of coal mine.