Pipeline leakage monitoring method and control unit, device and system

A technology of a control unit and a monitoring device, which is applied to the pipeline drip monitoring method, control unit, device and system field, can solve the problems of too narrow detection range, increased starting inertia, poor general type, etc., and achieves low power consumption and large Effect of detection range

Active Publication Date: 2017-05-10
SHANGHAI KOHLER ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Obviously, the impeller flowmeter in series is equivalent to adding an additional load, which increases the pressure loss of the waterway and affects the performance of the back-end water equipment
In addition, impeller flowmeters of different diameters need to be adapted to pipelines of different diameters, and the ...

Method used

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  • Pipeline leakage monitoring method and control unit, device and system
  • Pipeline leakage monitoring method and control unit, device and system
  • Pipeline leakage monitoring method and control unit, device and system

Examples

Experimental program
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Embodiment 1

[0061] This embodiment provides a pipeline drip monitoring method, which is applied to equipment for detecting water leakage in domestic water pipelines. The pipelines include water outlet equipment and water pipelines. The water outlet equipment may include showers, kitchen faucets, Toilet water tank, etc., the water pipeline is a pipeline for water circulation. Such as figure 1 shown, including the following steps:

[0062] S100: Judging whether all the water equipment connected to the pipeline section to be tested are in the off state, if so, start the monitoring mode, and perform step S200; that is, only when the water equipment connected to the pipeline section to be tested are all in the off state, start the monitoring mode , to close the section of the pipe to be tested, thereby avoiding affecting the normal water use of the water-using equipment.

[0063] S200: Execute the monitoring mode, and within the monitoring period, close the section of the pipeline to be test...

Embodiment 2

[0069] The pipeline leakage monitoring method provided in this embodiment, such as image 3 shown, including the following steps:

[0070] S101: Start the initialization mode. When the water equipment connected to the pipeline section to be tested is closed, control the conduction of the pipeline section to be tested. During the learning period, obtain the sampling pressure value of the inner wall of the pipeline according to the preset sampling period , obtaining a reference pressure value according to the plurality of sampled pressure values. The learning period may be set as a fixed period, such as ten minutes. The sampling period can be selected as ten seconds, and the reference pressure value is obtained according to the results obtained from multiple samplings. When processing multiple sampled pressure values, filtering, noise reduction and other processing methods are used to eliminate the influence of occasional abnormal values. Use the finally obtained reference pr...

Embodiment 3

[0085] This embodiment provides a control unit, such as Figure 4 shown, including:

[0086] Judgment module 101, judges whether the water equipment connected with the pipeline section to be tested is all closed, and if so, starts the monitoring mode; that is, only when the water equipment connected with the pipeline section to be tested is all closed, the monitoring mode is turned off. The pipe section to be tested can avoid affecting the normal water use of water equipment.

[0087] The monitoring module 102 executes the monitoring mode, and within the monitoring period, closes the pipe section to be tested at intervals of a preset time, and obtains the first pressure value of the inner wall of the pipe every time the pipe section to be tested is closed; The monitoring cycle is set according to the actual household water use conditions. For example, in the morning and evening, when the household water equipment is turned on more often and the water is used more frequently, ...

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Abstract

The embodiment of the invention provides a pipeline leakage monitoring method and a control unit, device and system. When it is determined that water use equipment communicated with a pipeline segment to be detected is in a closed state, the monitoring mode is exerted, and it is avoided that normal water use of a user is affected. Under the monitoring mode, the pipeline segment to be detected is closed at the interval of preset time during the monitoring period, and when the pipeline segment to be detected is closed each time, a first pressure valve of the inner wall of the pipeline is obtained; if the change rate of the first pressure valve of the inner wall of the pipeline exceeds a preset threshold value, water leakage of the pipeline segment to be detected is determined. Whether the pipeline segment to be detected leaks water or not can be accurately judged through the water pressure valve of the inner wall of a sampling pipeline. According to pressure detection, a pressure sensor low in power consumption can work by adopting a low-power source without increasing pressure loss in a water route, and compared with an existing impeller flowmeter, the pressure sensor has a larger detection range.

Description

technical field [0001] The invention relates to water leakage detection of water equipment or pipelines, in particular to a pipeline leakage monitoring method, control unit, device and system. Background technique [0002] A plurality of water use equipment in the family and between the water inlet main pipes are sealed and connected by pipelines. However, there are often various degrees of water leakage in the pipeline or water equipment caused by various reasons such as pipeline damage, sealing device failure, and improper human operation. In order to avoid the waste of water resources caused by the above situation, in the prior art, an impeller flowmeter is installed in the pipeline to detect whether there is water leakage. However, the impeller flowmeter must be connected in series in the waterway. When there is water leakage, the impeller flowmeter will be driven to start measurement during the flow of water in the pipeline. Obviously, the impeller flowmeter in series...

Claims

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Application Information

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IPC IPC(8): F17D5/02G01M3/28
CPCF17D5/02G01M3/2815
Inventor 陆峻薛政明
Owner SHANGHAI KOHLER ELECTRONICS TECH
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