KR101454288B1 - System for detecting leakage of service water tube - Google Patents

System for detecting leakage of service water tube Download PDF

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Publication number
KR101454288B1
KR101454288B1 KR1020140053177A KR20140053177A KR101454288B1 KR 101454288 B1 KR101454288 B1 KR 101454288B1 KR 1020140053177 A KR1020140053177 A KR 1020140053177A KR 20140053177 A KR20140053177 A KR 20140053177A KR 101454288 B1 KR101454288 B1 KR 101454288B1
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South Korea
Prior art keywords
leakage
gateway
information
relay node
leak
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KR1020140053177A
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Korean (ko)
Inventor
엄두섭
최재성
박연종
주정돈
김영진
전종원
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에스케이건설 주식회사
주식회사 센서웨이
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17D—PIPE-LINE SYSTEMS; PIPE-LINES
    • F17D5/00—Protection or supervision of installations
    • F17D5/02—Preventing, monitoring, or locating loss
    • F17D5/06—Preventing, monitoring, or locating loss using electric or acoustic means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
    • G01M3/24—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using infrasonic, sonic, or ultrasonic vibrations
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q50/00—Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism
    • G06Q50/06—Energy or water supply
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C19/00—Electric signal transmission systems
    • G08C19/02—Electric signal transmission systems in which the signal transmitted is magnitude of current or voltage
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2223/00—Investigating materials by wave or particle radiation
    • G01N2223/60—Specific applications or type of materials
    • G01N2223/647—Specific applications or type of materials leak detection

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Business, Economics & Management (AREA)
  • General Physics & Mathematics (AREA)
  • Economics (AREA)
  • Health & Medical Sciences (AREA)
  • Water Supply & Treatment (AREA)
  • Marketing (AREA)
  • Mechanical Engineering (AREA)
  • Public Health (AREA)
  • Acoustics & Sound (AREA)
  • General Health & Medical Sciences (AREA)
  • Human Resources & Organizations (AREA)
  • General Engineering & Computer Science (AREA)
  • Primary Health Care (AREA)
  • Strategic Management (AREA)
  • Tourism & Hospitality (AREA)
  • General Business, Economics & Management (AREA)
  • Theoretical Computer Science (AREA)
  • Examining Or Testing Airtightness (AREA)

Abstract

The present invention discloses a water leakage detection system, comprising: a plurality of spaced sensors arranged on a plurality of pipes and measuring water leakage signals; a plurality of water leakage detection units for detecting the generation of water leakage by using the signals received from the plurality of sensors; and a plurality of relay nodes for detecting the water leakage positions by using the information received from the plurality of water leakage detection units so as to transmit the same to the outside.

Description

SYSTEM FOR DETECTING LEAKAGE OF SERVICE WATER TUBE

The present invention relates to a detection system capable of detecting the leakage of water and sewage pipes buried underground.

Generally, water pipes for the supply of water to houses, buildings, factories and apartments are buried in the ground, and clean water is supplied to them from branch pipes separated from the main building. Although the old water pipes are replaced periodically, they are not wasted in the case of leakage due to the failure to replace the water pipes and water pipes, and there is a possibility of water pollution due to the influx of foreign substances.

The water leakage measurement of the water pipe is mainly based on the fact that the water pipe is buried in the underground and the dangerous area, and the method such as the ultrasonic wave generation or the measurement by the pipe input device and the microwave laser is used.

However, this is a measurement after leakage, and there are many practical difficulties to locate at the same time as leakage. The water leakage of the water supply pipe is compared with the difference between the supply amount and the consumed amount, or the staff member is walking around the site in the middle of the night and recognizes it as an audible sound. However, There is a problem that a considerable effort and cost are required for sensing and measuring the flow rate.

The present invention provides a leakage detection system capable of detecting a precise leakage position of a pipe embedded in a basement.

According to an aspect of the present invention, there is provided a leakage detection system comprising: a plurality of sensors spaced apart from a plurality of pipelines to measure leakage signals; A plurality of leakage detection units for detecting occurrence of leaks using signals received from the plurality of sensors; And a plurality of relay nodes for detecting a leakage occurrence position using the information received from the plurality of leakage detection units and transmitting the detection result to the outside.

In the leakage detection system according to an aspect of the present invention, the relay node calculates a plurality of leakage positions using the difference in distance between the sensors, and determines the average value as a leakage position.

In the leakage detection system according to an embodiment of the present invention, a gateway for transmitting leak information received from the plurality of relay nodes to a central management server, the relay node including a relay node disposed on the shortest distance to the gateway And transmits leak information to the gateway.

In a leakage detection system according to an aspect of the present invention, when the transmitted information is not transmitted to the gateway, the relay node transmits leak information to the gateway using the bypass relay node.

In a leakage detection system according to an aspect of the present invention, the gateway transmits leakage information to the central management server using a wired network.

A leakage detection method according to one aspect of the present invention includes: collecting signals from a plurality of pipelines; Determining whether a leak is detected using the signal; And determining a leakage position using a difference in distance between the plurality of sensors when the leakage is determined to be a leakage.

In the leakage detection method according to an aspect of the present invention, the step of determining the leakage position may include calculating a plurality of leakage positions using a difference in distance between the plurality of sensors, and determining an average value of the leakage positions.

According to the present invention, it is possible to detect the accurate leak position of the pipe embedded in the underground. Further, according to the present invention, the central management server can wirelessly communicate with the leak detecting unit to use a small number of leak sensors. As a result, the installation cost can be reduced by installing a small number of equipment in the leak detection area and covering a wide range.

In addition, leakage detection can be performed at a set time when the water use is low, thereby eliminating the complaint of the user due to the interruption of the water supply during the detection period for leak detection.

1 is a conceptual diagram of a leakage detection system according to an embodiment of the present invention,
Figure 2 is a block diagram of a sensor and leakage detection unit according to an embodiment of the present invention,
3 is a block diagram of a relay node according to an embodiment of the present invention,
4 and 5 are conceptual diagrams for explaining a concept of determining a leakage position of a water supply and drainage pipe according to an embodiment of the present invention,
FIG. 6 is a view for explaining a leakage detection principle according to an embodiment of the present invention, and FIG.
7 is a diagram for explaining a difference in arrival time obtained from collected leak information according to an embodiment of the present invention,
8 is a view for explaining a concept of determining a leakage position according to an embodiment of the present invention,
9 is a view for explaining a concept of a relay node transmitting information to a gateway according to an embodiment of the present invention.

The present invention is capable of various modifications and various embodiments, and specific embodiments are illustrated and described in the drawings. It should be understood, however, that the invention is not intended to be limited to the particular embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

The terms including ordinal, such as second, first, etc., may be used to describe various elements, but the elements are not limited to these terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the second component may be referred to as a first component, and similarly, the first component may also be referred to as a second component. And / or < / RTI > includes any combination of a plurality of related listed items or any of a plurality of related listed items.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, . On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between.

The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the terms "comprises" or "having" and the like are used to specify that there is a feature, a number, a step, an operation, an element, a component or a combination thereof described in the specification, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

Hereinafter, embodiments will be described in detail with reference to the accompanying drawings, wherein like or corresponding elements are denoted by the same reference numerals, and redundant description thereof will be omitted.

1 is a conceptual diagram of a leakage detection system according to an embodiment of the present invention.

Referring to FIG. 1, the pipe 1 is made to have a predetermined length and is buried in the ground. This pipe (1) is a concept that collectively refers to all kinds of pipes in which a fluid flows under the ground. Hereinafter, the piping will be described as a water piping. Each branch pipe (1) can be provided with a branch pipe (1a) for supplying water to the customer.

A plurality of sensors 10 are disposed along the longitudinal direction of the water pipe 1 and embedded in the indicator 2 together with the water pipe 1. The sensor 10 measures a leakage signal generated in the water pipe 1 at a predetermined time and transmits it to the leakage detection unit 20. [

The leak detection unit 20 receives a detection signal from the sensor 10 and judges whether the leaked water pipe 1 is leaked or not. The leak detection unit 20 is connected to the sensor 10 individually. Therefore, the number of sensors 10 and the number of leakage detection units 20 can be the same. However, one leak detection unit 20 may receive detection signals from the plurality of sensors 10 as necessary.

The relay node (30) wirelessly receives leakage information from the plurality of leak detection units (20). The relay node 30 judges at which point of the actual water pipe the leakage has occurred using the information of the point where the water leak occurred. The relay node 30 transmits leak information and leakage location information to the gateway 40. For example, the relay node 30 may be installed in the telephone pole 3.

The gateway 40 receives leakage information and leakage location information from the plurality of relay nodes 30 and transmits the leakage information and leakage location information to the central management server 60. The gateway 40 transmits information through a wired network (Ethernet, Sonnet) 50 or the like.

The central management server 60 receives information from the plurality of gateways 40 and can instantaneously confirm which point of the entire water pipe 1 has leaked.

FIG. 2 is a block diagram of a sensor and leakage detection unit according to an embodiment of the present invention, and FIG. 3 is a block diagram of a relay node according to an embodiment of the present invention.

The sensor 10 can be applied to both the sensor 10 for measuring the leak sound or the vibration. That is, the present invention can be applied to any configuration without any restrictions as long as it is capable of sensing information for judging leakage. Further, the sensor 10 may further include a function of measuring the flow rate of the fluid. Hereinafter, it will be described that the sensor 10 measures leak sound.

The sensor 10 includes a sensor element 11 for outputting a detection signal and an A / D converter 12 for converting an analog signal generated from the sensor element 11 into a digital signal.

The leakage detection unit 20 is connected to the sensor 10 in a wired or wireless manner and uses the detection signal measured by the sensor 10 to determine whether or not the leakage occurs. The leak detection unit 20 includes a synchronization signal receiving unit 21, an A / D conversion control unit 22, a signal filter unit 23, a fast Fourier transform unit (FFT) 24, a frequency analysis unit 25, (26), and a communication module (27).

The synchronization signal receiving unit 21 receives the synchronization signal from the outside and provides it to the A / D conversion control unit 22. At this time, the synchronizing signal is a GPS signal of the satellite, and the synchronizing signal receiving unit 21 may be a GPS receiving module.

The A / D conversion control section 22 transmits a control signal for performing leakage measurement in synchronism with a preset leak measurement signal to the sensor 10. The sensor 10 samples the leak detection signal output from the sensor element 11 using the control signal and provides the resultant digital converted data to the leak detection unit 20, respectively. According to the present invention, since the plurality of sensors 10 sense according to the synchronous signal, accurate leakage information can be secured even when the leakage detection units are separated from each other.

The signal filter unit 23 of the leak detection unit 20 removes the DC component and the high-band component in order to extract a signal pattern that is necessary for leak determination and includes the characteristics of the leakage pattern, and then outputs the signal pattern to the FFT unit 24 to provide.

The fast Fourier transform unit 24 converts the frequency domain into an frequency domain using an analysis algorithm and transmits the frequency domain analysis result to the frequency analysis unit 25. Then, the frequency analyzer 25 generates a deformation frequency whose amplitude is changed according to the signal size, and provides the deformation frequency to the leak determining unit 26 and the averaging unit 28.

When the amplitude of the deformation frequency repeatedly exceeds the threshold value, the leak determining unit 26 determines that a leak has occurred, and sends the leak information wirelessly through the communication module 27. At this time, a threshold value for determining whether leakage occurs is provided from the threshold setting unit 29. [

Referring to FIG. 3, the relay node 30 includes a communication module 31, a leakage position calculation unit 32, The relay node 30 receives the leakage information from the plurality of leakage detection units 20 and determines the leakage position using the information transmitted from the plurality of leakage detection units 20. [

FIGS. 4 and 5 are conceptual diagrams for explaining a concept of determining a leakage position of a water supply and drainage pipe according to an embodiment of the present invention. FIGS. 6 and 7 illustrate the principle of leakage detection according to an embodiment of the present invention. And FIG. 8 is a view for explaining a concept of determining a leakage position according to an embodiment of the present invention.

Referring to Figs. 4 and 5, when a plurality of leakage information is received from the leakage detection unit 20 disposed in a specific area, the relay node determines the leakage position using the distance between the leakage detection units.

For example, if leak information is generated from the three leak detection units 20a, 20b, and 20c in the area A of Fig. 4, the distance between the first leak detection unit 20a and the second leak detection unit 20b, The first leak point is calculated using the time difference. Thereafter, the second leak point can be calculated using the distance between the first leak detection unit 20a and the third leak detection unit 20c and the time difference.

6, when there is a leakage occurrence point K between two points A and B, two points and a sound source are generated from the difference (Td) between the two-point distance D, the sound velocity V and the sound arrival time By calculating the interval (L1) (L2) between the points (K), the leakage position can be obtained.

7, when one leakage data M obtained at the point A and another leakage data S obtained at the point B are observed at the same time, And the interval between the peaks represents the difference (Td) of the arrival times of the sound waves. The difference (Td) of the sound arrival times can be determined by analyzing the leakage data (M) (S) collected at the relay node (30).

When leakage occurs between a plurality of points, the leakage points derived by using the above calculation method for each point may be different from each other.

8, the leakage position using the first leak detection unit 20a and the second leak detection unit 20b is the first point P1 and the first leak detection unit 20a and the third leak detection unit The average value of the first point P1 and the second point P2 can be determined as the final leak position P3 when the leak position using the second leak point 20c is the second point P2.

That is, there is an advantage that, when the information between the plurality of leak detection units 20a to 20c is respectively calculated and the leakage position is calculated by the average value, the leakage position can be measured more accurately.

9 is a diagram for explaining a concept of a relay node transmitting information to a gateway according to an embodiment of the present invention.

Referring to FIG. 9, a plurality of relay nodes 30 within a certain area transmit leakage information and leakage location information to the gateway 40 via neighboring relay nodes 30. [0040] FIG.

At this time, the first relay node 30a transmits the information using the relay nodes 30b and 30c arranged in the path having the shortest distance from the gateway 40. [ For example, the first relay node 30a can transmit information to the gateway 40 via the second relay node 30b and the third relay node 30c.

At this time, when the information transmitted from the first relay node 30a is not transmitted to the gateway 40, the first relay node 30a can transmit information to the gateway 40 using the relay relay node 30b (Add-hoc function). According to this configuration, there is less risk of loss of information, and the leakage point and position can be accurately grasped by the central management server.

10: Sensor
20: Leak detection unit
30: relay node
40: Gateway
50: Central Management Server

Claims (7)

A plurality of sensors spaced apart from a plurality of pipes to measure leakage signals;
A plurality of leakage detection units for detecting occurrence of leaks using signals received from the plurality of sensors;
A plurality of relay nodes for detecting a leakage occurrence position using information received from the plurality of leakage detection units and transmitting the detection result to the outside; And
And a gateway for transmitting leakage information received from the plurality of relay nodes to a central management server,
The relay node transmits leakage information to the gateway using a relay node disposed on the shortest distance to the gateway,
Wherein the relay node transmits leakage information to the gateway using the bypass relay node when the transmitted information is not transmitted to the gateway.
The method according to claim 1,
Wherein the relay node calculates a plurality of leak positions using the difference between the sensors and determines the average value as a leak position.
delete delete The method according to claim 1,
Wherein the gateway transmits leakage information to the central management server using a wired network. delete delete
KR1020140053177A 2014-05-02 2014-05-02 System for detecting leakage of service water tube KR101454288B1 (en)

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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20180055214A (en) * 2016-11-16 2018-05-25 이창우 The defect detecting system of oil pipeline
KR20180079128A (en) 2016-12-31 2018-07-10 주식회사 에스씨솔루션 Leak detecting apparatus and method thereof
KR20190078433A (en) 2017-12-26 2019-07-04 주식회사 에스씨솔루션 System and Method for checking leakage of underground pipe
KR102036631B1 (en) 2019-05-03 2019-10-25 주식회사 에스씨솔루션 System for checking leakage of underground pipe and Method using thereof
KR102036649B1 (en) 2019-06-17 2019-10-25 주식회사 에스씨솔루션 System for managing water leakage and Method for forecasting water leakage point using the same
KR102036642B1 (en) 2019-06-15 2019-11-26 주식회사 에스씨솔루션 System for managing water leakage and Method for offering water leakage information using the same
KR102220047B1 (en) * 2020-10-08 2021-02-24 인천대학교 산학협력단 Leak location determination system apparatus capable of determining the location of the leak within the water pipe network and operating method thereof
WO2021049731A1 (en) * 2019-09-09 2021-03-18 한국수자원공사 Water leakage detection system
KR20220063928A (en) * 2020-11-11 2022-05-18 인천대학교 산학협력단 Water leak monitoring apparatus that monitors whether there is water leakage in the water pipe network and the operating method thereof
KR102535109B1 (en) 2022-11-08 2023-05-26 주식회사 에스씨솔루션글로벌 Leak sensing system and method for the same
KR20230080564A (en) 2021-11-30 2023-06-07 주식회사 에스씨솔루션글로벌 Leak sensing system
KR20230080551A (en) 2021-11-30 2023-06-07 주식회사 에스씨솔루션글로벌 Leak sensing system
KR20230080584A (en) 2021-11-30 2023-06-07 주식회사 에스씨솔루션글로벌 Leak sensing system and mothod for the same

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KR20110032272A (en) * 2009-09-22 2011-03-30 주식회사 센서웨이 Leak detection apparatus and method thereof
KR20110093245A (en) * 2010-02-12 2011-08-18 (재)국토연구원 A method to manage the district heating facility
JP2013210347A (en) * 2012-03-30 2013-10-10 Nec Corp Leakage detection method, water leakage detection method, leakage detector and water leakage detector

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Publication number Priority date Publication date Assignee Title
KR20110032272A (en) * 2009-09-22 2011-03-30 주식회사 센서웨이 Leak detection apparatus and method thereof
KR20110093245A (en) * 2010-02-12 2011-08-18 (재)국토연구원 A method to manage the district heating facility
JP2013210347A (en) * 2012-03-30 2013-10-10 Nec Corp Leakage detection method, water leakage detection method, leakage detector and water leakage detector

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20180055214A (en) * 2016-11-16 2018-05-25 이창우 The defect detecting system of oil pipeline
KR20180079128A (en) 2016-12-31 2018-07-10 주식회사 에스씨솔루션 Leak detecting apparatus and method thereof
KR20190078433A (en) 2017-12-26 2019-07-04 주식회사 에스씨솔루션 System and Method for checking leakage of underground pipe
KR102036631B1 (en) 2019-05-03 2019-10-25 주식회사 에스씨솔루션 System for checking leakage of underground pipe and Method using thereof
KR102036642B1 (en) 2019-06-15 2019-11-26 주식회사 에스씨솔루션 System for managing water leakage and Method for offering water leakage information using the same
KR102036649B1 (en) 2019-06-17 2019-10-25 주식회사 에스씨솔루션 System for managing water leakage and Method for forecasting water leakage point using the same
WO2021049731A1 (en) * 2019-09-09 2021-03-18 한국수자원공사 Water leakage detection system
KR102220047B1 (en) * 2020-10-08 2021-02-24 인천대학교 산학협력단 Leak location determination system apparatus capable of determining the location of the leak within the water pipe network and operating method thereof
KR20220063928A (en) * 2020-11-11 2022-05-18 인천대학교 산학협력단 Water leak monitoring apparatus that monitors whether there is water leakage in the water pipe network and the operating method thereof
KR102476941B1 (en) 2020-11-11 2022-12-12 인천대학교 산학협력단 Water leak monitoring apparatus that monitors whether there is water leakage in the water pipe network and the operating method thereof
KR20230080564A (en) 2021-11-30 2023-06-07 주식회사 에스씨솔루션글로벌 Leak sensing system
KR20230080551A (en) 2021-11-30 2023-06-07 주식회사 에스씨솔루션글로벌 Leak sensing system
KR20230080584A (en) 2021-11-30 2023-06-07 주식회사 에스씨솔루션글로벌 Leak sensing system and mothod for the same
KR102535109B1 (en) 2022-11-08 2023-05-26 주식회사 에스씨솔루션글로벌 Leak sensing system and method for the same

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