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A material spreading device and method mounted on an agricultural drone

A technology of spreading device and unmanned aerial vehicle, which is applied in the direction of launching device, planter parts, and sowing planter, can solve the problems of discontinuous material flow, inaccurate control, slow response speed, etc. , the effect of easier control of airflow

Active Publication Date: 2019-08-16
SOUTH CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, in these existing devices and technologies, the material flow is simply adjusted, the control is not precise, the material flow is discontinuous, and the response speed is slow. At present, there is no relatively complete control system that can control the sowing according to the operating parameters of agricultural drones. Real-time precise adjustment of volume
In addition, the existing technology mainly uses the centrifugal force of the disc to throw the particles out. The seed falling area is a circular or semi-circular belt, and the seed falling is uneven in the direction perpendicular to the forward direction of the agricultural drone.

Method used

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  • A material spreading device and method mounted on an agricultural drone
  • A material spreading device and method mounted on an agricultural drone
  • A material spreading device and method mounted on an agricultural drone

Examples

Experimental program
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Embodiment 1

[0042] A material spreading device mounted by an agricultural drone, comprising an agricultural drone 1 and a material spreading device 2. The material spreading device 2 is mounted on the agricultural drone 1; the material spreading device 2 includes a material box 21. The fan 22 (preferably a ducted fan in this embodiment), an air flow distribution box 23 and a flow guide device 26. The air flow distribution box 23 is provided with an air flow inlet 231 and an air flow outlet 232; one end of the flow guide device 26 is provided There are air inlet 262 and material inlet 261; the other end of the guide device 26 is an outflow outlet 263, and the guide device 26 is provided with a number of grid plates 264, and the outflow outlet 263 is formed by the grid plates 264 to form a gas-solid two-phase flow Outlet; the bottom of the material box 21 is a discharge port, the air inlet 262, the material inlet 261 and the discharge port are in sealed communication with each other, and the ...

Embodiment 2

[0047] A material spreading method for agricultural unmanned aerial vehicles adopts the material spreading device mounted on agricultural unmanned aerial vehicles described in Example 1, and the fan adopts a ducted fan, which specifically includes the following steps:

[0048] a. Load materials into the material box on the ground;

[0049] b. Control the take-off of agricultural drones and maintain the preset operating height;

[0050] c. The spreading width is preset according to the flying height and flying speed, and the fan is started to reach the preset wind speed;

[0051] d. Start the discharge motor and set the rotation speed of the discharge wheel according to the preset displacement;

[0052] e. Control the agricultural drone to carry out the spreading operation according to the predetermined path;

[0053] f. During the spreading operation, the position and attitude sensor in the control system collects real-time information on the flight height and flight speed of the agricul...

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Abstract

The invention relates to the field of agricultural machinery equipment, in particular to an agricultural unmanned aerial vehicle-mounted material spreading device and method. The agricultural unmanned aerial vehicle-mounted material spreading device is characterized in that an agricultural unmanned aerial vehicle (1) and a material spreading device (2) are included, and the material spreading device (2) is mounted on the agricultural unmanned aerial vehicle (1); the material spreading device (2) comprises a material box (21), a draught fan (22), a gas flow distribution box (23) and a flow guide device (26), the gas flow distribution box (23) is provided with a gas flow inlet (231) and a gas flow outlet (232), one end of the flow guide device (26) is provided with a gas flow inlet (262) and a material inlet (261), the other end of the flow guide device (26) is provided with a gas-solid two-phase flow outlet (263), the bottom of the material box (21) is provided with a discharge port, the gas flow inlet (262), the material inlet (261) and the discharge port communicate with one another in a sealed mode, and the draught fan (22) is installed on the gas flow inlet (231).

Description

Technical field [0001] The invention relates to the field of agricultural machinery equipment, in particular to a material spreading device and method mounted by an agricultural drone. Background technique [0002] With the development of agricultural aviation and intelligent communication technology, intelligent agricultural equipment has gradually replaced traditional mechanical tools. The seeding method has undergone a transformation from manual seeding to mechanical seeding, and even to integrated operation. However, the terrain of our country is complex, and the area of ​​arable land in non-plain areas is large, especially in hilly areas and paddy fields. Ground walking machinery is difficult to operate. In addition, in areas with serious land desertification such as wastelands and wastelands, ground machinery is not suitable for large-area spreading of grass and tree seeds. The operation efficiency is low and the survival rate of vegetation is not high. [0003] Existing me...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01C7/16A01C7/20B64D1/02
CPCA01C7/16A01C7/20B64D1/02
Inventor 周志艳宋灿灿罗锡文臧英
Owner SOUTH CHINA AGRI UNIV
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