Intelligent unmanned sowing aerial vehicle

Abstract

The invention discloses an intelligent unmanned sowing aerial vehicle. The unmanned aerial vehicle comprises a lifting part and an unmanned aerial vehicle body. The lifting part is a parafoil which pulls the unmanned aerial vehicle through control ropes. A power unit is arranged at the tail of the unmanned aerial vehicle body. An intelligent sowing flight control system is also arranged on the unmanned aerial vehicle body and comprises steering engines and an onboard flight control system arranged at the head of the unmanned aerial vehicle body. A spraying device is also arranged in the middle part of the unmanned aerial vehicle body and comprises a liquid tank arranged in the middle part of the unmanned aerial vehicle body. A spray lance and a booster pump are fixed to the lower part of the unmanned aerial vehicle body; the booster pump pumps out the liquid to be sprayed from the bottom of the liquid tank through a liquid pipe, and conveys the liquid to the spray lance with spray nozzles. Power supply equipment is also arranged on the unmanned aerial vehicle body and provides power for the unmanned aerial vehicle body. The intelligent unmanned sowing aerial vehicle disclosed by the invention has the advantages of high loading capacity, long operating time, high working efficiency, low using and maintaining cost and the like.

Description

technical field [0001] The invention belongs to the field of agricultural aviation plant protection, and more specifically relates to an intelligent sowing unmanned aerial vehicle. Background technique [0002] According to statistics, the plant protection machinery currently used in China is mainly manual and small electromechanical sprayers. Among them, manual pesticide spraying machinery and backpack motorized pesticide machinery account for 93.07% and 5.53% of the domestic plant protection machinery respectively. Tractor-mounted plant protection machinery is about It accounts for 0.57%. Plant protection operations require a lot of labor and labor intensity, and poisoning incidents of pesticide applicators occur from time to time. At present, the amount of pesticides in China is increasing, the operation cost is high, and the waste is serious, the effective utilization rate of resources is low, and the crop yield and quality are difficult to be guaranteed. At the same tim...

AI Technical Summary

Problems solved by technology

At present, the amount of domestic pesticides is increasing, the operating cost is high, and the waste is serious, the effective utilization rate of resources is low, and the crop yield and quality are difficult to be guaranteed. At the same time, it brings serious pollution of water and soil resources, ecological system imbalance, and decline in the quality of agricultural products.

[0003] In order to solve the above problems, there are more commonly used agricultural aviation sowing UAVs. The main forms of UAVs are unmanned helicopters and multi-rotor UAVs, but most of them have small drug loads and cannot Realize intelligent sowing, and its operation, use and maintenance are complicated, and the problem of high risk of experiment

Among them, the structure of the unmanned helicopter is complex, and the flight attitude needs to be adjusted continuously according to the layout and height of the crops during the operation process. However, the coupling problem of lift and thrust needs to be solved in the process of lifting, flying, and rotating of the helicopter. On the one hand, It increases the complexity of the helicopter's mechanical structure and control algorithm, and on the other hand, it also increases the complexity of its remote operation, so professional training is required for drone remote operators

On the other hand, as a plant protection operation platform, the multi-rotor UAV has a much smaller load than the helicopter. The main reason is that it uses multiple small-sized rotors, and because the power supply cannot be too large, its continuous operation time is relatively short.

Therefore, during the operation of the multi-rotor UAV, it is necessary to return to add medicine and replace the battery many times, the work efficiency is low, and it also causes a waste of energy.

In addition, it also has other problems such as: 1. The drug load is small, about 10-20kg, the take-off weight is within 35kg, and the operating efficiency is relatively low; 2. It is impossible to accurately control the key parameters such as the sowing height, the sowing line and the sowing dosage. , and it is impossible to judge whether to replay or miss broadcast; 3. Complex operation, difficult maintenance, easy damage, and high risk of use

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