关键词: 植保无人机, 续航, 太阳能, 锂电池

Abstract: For the needs of UAV in agriculture field, limited battery life is undoubtedly one of the important issues facing the plant protection unmanned aerial vehicle (UAV). Due to the bottleneck in battery producing technology, the effective operating time of plant protection UAV is mostly limited to about 12 min which is difficult to break through. As an inexhaustible “non source” power, the sun has gained special attention. This paper designed a scheme for flight duration of plant protection UAV based on solar energy. Feasibility of this scheme was tested on the six rotor UAV platform. The results showed that the flight life time of UAV installed on solar module was averagely increased 70 s compared with that before the installation. This design based on multi-axis UAV flight platform, which converted the solar energy into electricity to charge lithium batteries during UAV flight, thereby reducing the lithium battery consumption, and prolonging the effective operating time of the plant protection UAV. To a certain extent, it alleviated the problem existing in current unmanned aerial vehicle (UAV), and could be extend to application of other platforms based on the UAV.

Key words: plant protection unmanned aerial vehicle (UAV), battery life, solar energy, lithium battery