Method and device for setting solenoid valve opening and closing cycle period

A cycle, solenoid valve technology, applied in the direction of valve operation/release device, valve device, botanical equipment and method, etc., can solve the problem of non-uniform solenoid valve opening time, reduced water use efficiency, and reduced farmland production efficiency. , to achieve the effect of improving lifespan, improving efficiency and reducing irrigation errors

Active Publication Date: 2017-02-15
CHINA INST OF WATER RESOURCES & HYDROPOWER RES +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] Since the sprinkler is in the "go-stop-go" intermittent walking state, it will cause a certain irrigation error due to the intermittent walking state during the uniform irrigation process; Due to the state of the solenoid valve, the opening time of the solenoid valve cannot be evenly in the running and stopping stages of the sprinkler irrigation machine, which further causes irrigation errors, reduces the production efficiency of cultivated land and reduces the water use efficiency.

Method used

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  • Method and device for setting solenoid valve opening and closing cycle period
  • Method and device for setting solenoid valve opening and closing cycle period
  • Method and device for setting solenoid valve opening and closing cycle period

Examples

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Embodiment 1

[0055] The embodiment of the present invention provides a method for setting the opening and closing cycle of the solenoid valve, see figure 1 , the method flow includes:

[0056] 101: Obtain the percentage timer limit and walking speed percentage of the sprinkler;

[0057] 102: According to the percentage timer limit and the walking speed percentage, calculate the walking time and stopping time of each time the sprinkler is walking in the current irrigation area;

[0058] 103: Calculate the first common divisor of the walking time and the stopping time, wherein the first common divisor is the greatest common divisor between the walking time and the stopping time;

[0059] 104: When the first common divisor satisfies the preset condition, determine the first common divisor as the opening and closing cycle period of the solenoid valve in the sprinkler, so as to calculate the opening time of the solenoid valve through the determined opening and closing cycle period of the solen...

Embodiment 2

[0062] The embodiment of the present invention provides a method for setting the opening and closing cycle of the solenoid valve, see figure 2 , the method flow includes:

[0063] 201: Obtain the percentage timer limit value of the sprinkler and the walking speed percentage corresponding to the sprinkler in the current irrigation area.

[0064] Wherein, this step is performed each time the sprinkler moves from one irrigation area to another, and the currently entered irrigation area is used as the current irrigation area. Therefore, step 201 can be realized through the following steps:

[0065] When it is detected that the pivot machine enters the current irrigation area, the process of obtaining the percentage timer limit value of the pivot machine and the corresponding walking speed percentage of the pivot machine in the current irrigation area is executed.

[0066] 202: According to the percentage timer limit value and the walking speed percentage, calculate the running ...

Embodiment 3

[0103] The embodiment of the present invention provides a device for setting the open and close cycle of the solenoid valve, see image 3 , the device consists of:

[0104] The obtaining module 301 is used to obtain the percentage timer limit value of the sprinkler and the corresponding walking speed percentage of the sprinkler in the current irrigation area;

[0105] The first calculation module 302 is used to calculate the running time and stop time of each sprinkler when walking in the current irrigation area according to the percentage timer limit and the walking speed percentage;

[0106] The second calculation module 303 is used to calculate the first common divisor of the walking time and the stopping time, wherein the first common divisor is the greatest common divisor between the walking time and the stopping time;

[0107] The first determination module 304 is used to determine the first common divisor as the opening and closing cycle period of the solenoid valve in...

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Abstract

The invention discloses a method and device for setting the start-stop cycle period of an electromagnetic valve, and belongs to the field of irrigation control. The method includes the steps that the percentage timer limiting value of a sprinkling machine and the corresponding traveling speed percentage of the sprinkling machine at a current irrigation area are acquired; the traveling time and the stopping time of the sprinkling machine which travels at the current irrigation area every time are calculated according to the percentage timer limiting value and the traveling speed percentage; first common divisors of the traveling time and the stopping time are calculated; when the first common divisors meet the preset condition, the first common divisors are determined as the start-stop cycle period of the electromagnetic valve in the sprinkling machine. By the adoption of the method and device, the start-stop cycle period of the electromagnetic valve covers the traveling time and the stopping time of the sprinkling machine more evenly, hence, the irrigation efficiency of the sprinkling machine is improved, and irrigation errors are lowered; the start-stop cycle period of the electromagnetic valve is set according to the maximum first common divisor, the start-stop frequency of the electromagnetic valve is lowered, and the service life of the electromagnetic valve is prolonged.

Description

technical field [0001] The invention relates to the field of irrigation control, in particular to a method and device for setting the opening and closing cycle of an electromagnetic valve. Background technique [0002] Variable irrigation is one of the core components of precision agriculture. By applying precise amounts of water in real time to meet the water needs of crops in all irrigated areas within a field, it improves land productivity and water use efficiency. The variable irrigation system is mainly based on the transformation of the original uniform spraying large-scale sprinkler irrigation system. It is realized by installing a solenoid valve at the nozzle of the large-scale sprinkler and using the pulse principle to adjust the duty cycle of the solenoid valve in an opening and closing cycle. Precise control of irrigation depth. [0003] For the uniform spraying large-scale sprinkler irrigation machine, according to the design principle of the sprinkler irrigatio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K31/06A01G25/16
CPCA01G25/16F16K31/06
Inventor 赵伟霞李久生王春晔栗岩峰
Owner CHINA INST OF WATER RESOURCES & HYDROPOWER RES
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