Research on Agricultural Environment Information Collection System Based on LoRa

In order to realize intelligent agricultural environment information collection system with long distance and low power consumption, an information collection system based on LoRa communication was designed in this paper. The SX1278 chip was used as communication module to send and receive data; Communication protocols were designed between sensor nodes and central nodes; sensor nodes take the form of contention-based in the random access time to join LoRa wireless network; The way of time-division multiplexing was applied to send data packets simultaneously for sensor nodes. The system has completed the design of hardware and software, and achieved data collection. By testing, the system runs well, meets application requirements and has full practicability.