SOLENOID VALVE CONTROL METHOD, AGRICULTURAL UNMANNED AERIAL VEHICLE AND SOLENOID VALVE CONTROL DEVICE

摘要

A solenoid valve control method, an agricultural unmanned aerial vehicle, and a solenoid valve control device. The method is applied to an agricultural unmanned aerial vehicle (100), which is mounted with at least one spray head (1003). An electromagnetic valve (1002) in the agricultural unmanned aerial vehicle is used to control the opening and closing of the spray head (1003), and then control the agricultural unmanned aerial vehicle (100) to spray. When a valve of the solenoid valve (1002) needs to be closed, a larger current is used to control the valve of the solenoid valve (1002) to close, and once the valve of the solenoid valve (1002) is closed, a smaller current is used to keep the valve of the solenoid valve (1002) closed. Without changing the original design index of the solenoid valve (1002), the power consumption of the solenoid valve (1002) is reduced, and the battery lifetime of the agricultural unmanned aerial vehicle is increased. Moreover, the heat generation may be reduced, and device aging and even damage to some components are avoided while solving the problem in which the electrical resistance of the solenoid valve (1002) changes due to the overheating thereof. Furthermore, the current changes rapidly in response to the loaded voltage, thereby improving the opening response of the solenoid valve (1002), and meeting the requirements of precise spraying in some scenarios.