A fully automatic control device and method for an agricultural anti-frost machine

A control device and fully automatic technology, applied in the direction of electrical program control, botany equipment and method, program control in sequence/logic controller, etc., can solve the problem that the anti-frost machine cannot realize automatic control and the efficiency of the anti-frost machine low, limited frost protection effect, etc., to achieve the effect of improving frost protection effect, improving use efficiency, and reducing frost damage loss

Active Publication Date: 2015-12-30
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the fact that the existing domestic and foreign anti-frost machines cannot realize automatic control, the use efficiency of the anti-frost machines is low and the anti-frost effect is limited

Method used

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  • A fully automatic control device and method for an agricultural anti-frost machine
  • A fully automatic control device and method for an agricultural anti-frost machine
  • A fully automatic control device and method for an agricultural anti-frost machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Take tea gardens on slopes in mountainous areas as an example.

[0041] The tea tree plant height is small, and the temperature inversion intensity is weak, so the following scheme is adopted: set the height of the hydraulic lifting column to 8m, the fan speed to 580rpm, and the fan depression angle The rotation range of the gimbal is 90°, and the rotation period of the gimbal is 1min.

[0042] Specific implementation plan: first, input the height setting value of the hydraulic lifting column 8m in the PLC, start the oil pump 21, the pull wire displacement sensor detects the height of the hydraulic lifting column 1 in real time, and transmits the output signal to the PLC, and the PLC detects the height of the hydraulic lifting column The value 6m is compared with the set value 8m, and the upward oil circuit of the three-position four-way solenoid valve is opened to increase the height of the hydraulic lifting column. When the height of the hydraulic lifting column rea...

Embodiment 2

[0044] Take an apple orchard on flat terrain as an example.

[0045] The apple tree has a relatively high plant height. Under the condition of strong temperature inversion, the following scheme is adopted: set the height of the hydraulic lifting column to 12m, the fan speed to 450rpm, and the fan depression angle The rotation range of the gimbal is 120°, and the rotation period of the gimbal is 2 minutes.

[0046] Specific implementation plan: first, input the height setting value of the hydraulic lifting column 12m in the PLC, start the oil pump 21, the pull wire displacement sensor detects the height of the hydraulic lifting column 1 in real time, and transmits the output signal to the PLC, and the PLC detects the height of the hydraulic lifting column The value 6m is compared with the set value 12m, and the upward oil circuit of the three-position four-way solenoid valve is opened to increase the height of the hydraulic lifting column. When the height of the hydraulic lif...

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Abstract

The invention discloses a fully automatic control device and method for an agricultural anti-frost machine, belonging to the field of agricultural machinery automation. None of the existing agricultural anti-frost machines can realize fully automatic control, resulting in low use efficiency of the anti-frost machines and limited anti-frost effect. The invention utilizes the height sensor and the angle sensor to detect the operating parameters of the anti-frost machine, including the height of the hydraulic lifting column, the depression angle of the fan, the speed of the fan, the rotation range of the pan-tilt, and the rotation period of the pan-tilt, and collects the height sensor and the angle sensor signal through the acquisition control terminal. And control the oil pump, solenoid valve, electric telescopic rod drive motor, frequency converter, and stepper driver, so as to realize the fully automatic control of the height of the hydraulic lifting column, the depression angle of the fan, the speed of the fan, the rotation range of the pan and tilt, and the rotation period of the pan and tilt. The invention can realize the automatic control of the agricultural anti-frost machine, can improve the anti-frost effect and the use efficiency of the anti-frost machine, and is suitable for the automatic control of the anti-frost machine in complex environments.

Description

technical field [0001] The invention belongs to the fields of agricultural machinery automation and agricultural meteorological disaster resistance, and relates to a fully automatic control device and method for an agricultural anti-frost machine. Background technique [0002] In recent years, low temperature and freezing weather have brought serious losses to crops in our country. In the existing anti-frost machines at home and abroad, the parameters such as the height of the column, the speed of the fan, and the rotation period of the pan / tilt are all obtained based on experience and fixed, and have been set at the factory; the depression angle of the fan of some anti-frost machines is variable, but There are a limited number of fixed angles, and manual adjustment is required; the rotation range of the gimbal is limited to one or a limited number of fixed angles, and manual adjustment is also required. [0003] U.S. Patent No. 5,244,346 discloses a portable anti-frost dev...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B19/05A01G13/08
Inventor 胡永光刘萍杨朔赵梦龙吴文叶
Owner JIANGSU UNIV
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