3. Results The DJI T30 plant protection UAV was selected as the theoretical model with a maximum flight time of 20 min. Since the maximum drug load is 30 kg and the pesticide spraying speed is 0.1 kg/s, the time for one application is 300 s, which is much less than the maximum flight time of 20 min. Therefore, it is assumed that when replenishing the liquid, the UAV battery is replaced to maintain sufficient power. The relevant energy consumption calculation parameters are shown in Table 1.
