An unmanned aerial vehicle precision seeding device

Abstract

The invention discloses an unmanned aerial vehicle precision sowing device, which belongs to the technical field of precision sowing in agriculture, and includes a sorting module, a seed throwing module, a connecting hose, a direction adjustment module, and a control module. The sorting module can be conveniently composed of different The size of the sorting hole can meet the needs of different crop seed sizes, and can complete the precise sorting of single or several seeds according to the demand. The control module integrates the drone's attitude, position and speed, and wind speed information, and automatically controls the steering gear and The motor control signal and the control signal of the direction adjustment module make the seeds that are accurately sorted accelerate from the seed throwing hole of the throwing module to the accurate ground position at a required angle, and the seeds accelerated by the throwing module fall to the ground. There can be a certain depth of penetration behind the ground, which can not only ensure the accuracy of the seeds landing, but also overcome the changes in the position of the seeds caused by the blowing of the wind and the impact of rain on the seeds, thereby ensuring the accuracy of seed planting and realizing the accuracy of crops grow.

Description

technical field [0001] The invention relates to the technical field of precision sowing in agriculture, in particular to an unmanned aerial vehicle precision sowing device. Background technique [0002] The precision sowing device is the key equipment to achieve precise sowing operations, and its performance is directly related to the yield and quality of crop production. At present, there are mainly three types of precision seeding devices: mechanical, air suction and vibration. Mechanical seeders mainly use grooved wheel type, socket wheel type and convex head type as the core working parts. They have simple structure and low cost, but the uniformity of sowing is poor, the amount of seed used is large, and there are many damaged seeds, so it is impossible to achieve single-grain precision sowing. Air-suction seeding devices mainly include suction needle type, suction cup type, air-suction drum type, etc., which can realize single-grain precision sowing, but the structure ...

AI Technical Summary

Problems solved by technology

However, traditional precision planting equipment for ground machinery is large in size and weight, and the carrying capacity of existing drones is limited. Therefore, traditional precision planting equipment for ground machinery cannot be used on drones

In addition, the existing UAV planting device cannot achieve precise sowing. At the same time, the seeds are in a free fall state after leaving the device. Affected by the wind, the attitude and height of the UAV, the landing range is very large, and precise sowing cannot be achieved.

[0004] For example, the patent application with the application number CN 110073779 A provides a kind of seeding structure for drone sowing. The drum is driven to rotate through the geared motor, and the same or similar amount of seeds are spread by using the rows of concave grids on the drum. , the seeds are in a state of free fall after leaving the device. Affected by factors such as wind, drone attitude and height, the range of seeds landing varies greatly, making it impossible to accurately sow

[0005] Another example is the patent application with the application number CN 110040252 A, which provides a spreading mechanism for unmanned aerial vehicles. By using the drive structure to drive the blanking assembly and the casting piece to rotate, the material falling through the blanking hole of the blanking assembly is guided. The material cylinder falls to the multiple guide grooves of the spreading parts. The rotation of the spreading parts can make the materials be evenly scattered, so as to realize the uniformity of sowing seeds or fertilizers. This scheme cannot achieve precise sowing, and the sowing seeds also fall freely to ground

[0006] Another example is that the patent application with the application number CN 109665103 A provides a sowing device and a sowing drone with the device. The container, the rotating rod drives multiple seed containers to rotate. Since each seed container is filled with seeds in advance, the moment of inertia of the rotating rod and multiple seed containers is very large, resulting in high power consumption, low rotational speed, and low seed throwing speed , and the throwing direction of the seeds may be upwards, downwards or obliquely, so this scheme cannot accurately sow seeds

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