Most orchards in southern China were located in mountainous areas,and large-scale spray equipment cannot enter.In order to achieve automatic sequential spraying in mountainous orchards,this paper designed a pipeline automatic sequential spray system based on LoRa wireless communication technology.The system was based on the stm32 one-chip microcomputer.Six solenoid valve control nodes were deployed on the pipe network.LoRa wireless transceiver module was used for communication between node,and design program controls the six solenoid valves to open in sequence.The sys-tem can be opened remotely through the mobile phone APP.According to the test results,when the distance between nodes was 250 m,the data receiving rate was 5％.The test data showed that the system has long communication distance,low packet loss rate and high reliability,and was suitable for use in mountain orchards.
维普
万方数据