Variable-rate mist spraying system and control method

A spray system and variable technology, applied in the fields of trapping or killing insects, applications, animal husbandry, etc., can solve problems such as poor droplet distribution quality, low pesticide utilization rate, pesticide loss, etc., to ensure uniformity, large size, etc. The effect of improving the utilization rate of pesticides and expanding the range of changes

Inactive Publication Date: 2019-08-30
秦邵恩
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AI Technical Summary

Problems solved by technology

[0003] One of the main reasons for the extensive use of pesticides is the low utilization rate of pesticides, only about 30%
The main reason for the low utilization rate of pesticides is the inaccurate and uneven spraying. The use of traditional spraying techniques will cause most of the pesticides to be lost to the environment, which will affect or even break the agricultural ecosystem.
[0004] The pressure variable spray widely used in the prior art is to change the flow rate of the nozzle by changing the pressure value at the pressure nozzle, and the atomization effect of the liquid medicine will change with the change of the pressure at the nozzle, and this variation range Small, when the pressure is insufficient, the nozzle cannot atomize the liquid medicine, the liquid medicine will be sprayed in the form of water droplets, the distribution quality of the droplets is poor, and the coverage of the liquid medicine is small, which cannot meet the actual operation needs

Method used

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Examples

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Effect test

Embodiment 1

[0027] Refer to attached figure 1 , the variable spraying system of the present invention is a portable system that can be placed on different sprayers and vehicles, which includes a control module, a measurement module and a spray module,

[0028] The control module includes a main control device 1 and a controller 2. The main control device 1 is used to receive the measurement data of the measurement module and send the flow control signal to the controller 2. The main control device 1 is preferably a STM32 main control module. Obviously, Can be other conventional control devices known to those skilled in the art, the controller 2 controls the spray flow of the spray module, the controller 2 is a motor drive module, and the motor drive module is used to receive instructions from the main control device 1 and control the water pump 6 Rotating speed,

[0029] The measurement module includes a speed sensor 3 for measuring the walking speed of the walking device and a flow sens...

Embodiment 2

[0039] Continue to refer to the attached figure 1 , the basic structure and principle of this embodiment are basically the same as the first embodiment above, the difference is that the minimum atomization flow values ​​of the first nozzle 7 and the second nozzle 8 are equal, which can also be understood as the first nozzle 7 and the second nozzle 8 The second nozzle 8 is the nozzle of the same type. When the main control device 1 controls the spraying of the above-mentioned nozzles, the nozzle spraying is divided into the following three stages according to the moving speed of the traveling device from low to high.

[0040] (1) When the calculated theoretical spray flow value is less than the maximum atomization flow value of the first spray head 7, the main control device 1 controls the pump body 6 corresponding to the first spray head 7 or the second spray head 8 to stop working through the controller 2, Control the pump body 6 corresponding to the other nozzle to work, and...

Embodiment 3

[0044] Refer to attached figure 2 , the basic structure and principle of this embodiment are the same as those of Embodiment 1 or 2 above. The difference is that there are two speed sensors 3, which are respectively arranged near the traveling wheels on both sides of the traveling device, and are used to measure the corresponding side walking Number of rotations.

[0045] In the control method of this embodiment, when the rotation numbers of the traveling wheels on both sides measured by the two speed sensors 3 are consistent, that is, the traveling device travels straight and sprays, and the spraying process of the nozzle is the same as that of the first or second embodiment. When the number of revolutions of the traveling wheels on both sides measured by the two speed sensors 3 is different, that is, the traveling device turns to spray, and the spraying amount of the spraying nozzle on the inside of the steering is smaller than that of the spraying nozzle on the outside, an...

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Abstract

The invention relates to a variable-rate mist spraying system and a control method. The system includes a control module, a measuring module and a mist spraying module. The control module comprises amain control device and a controller, the measuring module comprises a speed sensor for measuring the walking speed of a walking device and a flow sensor for measuring the mist spraying flow of showernozzles, and the mist spraying module includes pesticide boxes, several water pumps and the shower nozzles, wherein the drug boxes are connected in sequence through pipelines, and the shower nozzlescorrespond to the water pumps one to one. The variation range of the mist spraying flow is enlarged, the fogdrop size is changed within a range without affecting the mist spraying effect, the uniformity and comprehensiveness of mist spraying are ensured, non-interruption continuous mist spraying is achieved, sudden change and interruption of the mist spraying flow do not exist, it is well ensuredthat the mist spraying quantity per unit area of drugs is same after a mist spraying machine runs unit length, and the utilization rates of pesticides are maximized.

Description

technical field [0001] The invention relates to the technical field of variable spraying, in particular to a variable spraying system and a control method. Background technique [0002] my country's annual pesticide use is huge, 2.5 times the world average. The difference between China's arable land area and the United States is only tens of square kilometers. However, China currently uses about 4.7 million tons of various pesticides every year, and the average amount of pesticides used per unit area is four times that of the United States. The abuse of pesticides not only causes environmental and ecological problems, but also has great harm to human health. The amount of pesticides directly sprayed on pests and diseases accounts for only 0.03% of the pesticides used. Every year, as many as 80,000 people are poisoned due to pesticide application in the field, and the number of people poisoned by pesticides is also showing an upward trend. At present, how to do a good job i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01M7/00
CPCA01M7/0089A01M7/0042
Inventor 秦邵恩
Owner 秦邵恩
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