KR102036642B1 - System for managing water leakage and Method for offering water leakage information using the same - Google Patents

Abstract

The present invention relates to a system for managing water leakage and a method for providing water leakage information. According to the present invention, the system for managing water leakage comprises: a detection unit (100-N) which is installed on a pipe and acquires and detects sky radio wave RF and vibratory sound waves; a management server (200) to learn change data of the vibratory sound waves in accordance with temporal change, and output state information of the pipe and position information of the vibratory sound waves; and a terminal (300) to visually provide a detection mark in accordance with the state information of the pipe and the position information of the vibratory sound waves. According to the present invention, the method for providing water leakage information comprises: a step (S100) of learning collected water leakage data to acquire a water leakage model; a step (S200) of receiving sky radio wave RF and vibratory sound waves from a detection unit; a step (S300) of using the water leakage model to output state information of a pipe from the received vibratory sound waves; and a step (S400) of outputting position information of the vibratory sound waves from the received sky radio wave RF and vibratory sound waves.

Description

System for managing water leakage and Method for offering water leakage information using the same

The present invention relates to a leak management system and a leak information providing method capable of providing leak information from detected vibration sound waves.

With the improvement of living standards, the use of water is increasing every year. Water pipes to supply water are usually buried underground, and the buried water pipes are leaked due to various factors such as impact and aging. Although much effort and research has been made to find leak points, it is still not easy to find exactly where leaks occur.

Methods for finding leak points include acoustic detection and correlation detection. The correlation detection method is a method of finding a leak point by installing acoustic sensors on both sides of a water pipe and calculating a time difference at which a leak sound detected from both sensors arrives.

However, due to various factors such as the material of the water pipe, the amount of water in the water pipe, the soil around the water pipe, and the connection of the water pipe, the propagation speed of the leak sound was different.

Korean Patent Publication No. 10-2010-0014046, Leakage Detection Section for Water Supply and Distribution Pipes and Leakage Consulting Section Detection System Patent Registration No. 10-1454288, Leakage Detection System Korean Patent Publication No. 10-1563279, Leakage Position Detection Method and Leakage Position Detection System Based on Seismic Velocity Measured by Section in a Pipe Patent Publication No. 10-2011-0032272, Leakage detection apparatus and method

It is an object of the present invention to provide a leak management system and a leak information providing method capable of detecting vibration sound waves transmitted from a pipe and providing information on a generation point of the vibration sound waves.

Another object of the present invention is to provide a leak management system and a leak information providing method for learning a change in vibration sound waves according to a temporal change and providing leak information using a learned leak model.

In addition, the present invention, by using the delay time of the airwave RF, the synchronization of the sound wave detection time of the sensors spaced apart from each other, and the leakage management to remove the time error that can occur from the time of detection of the vibration sound wave to the leak position calculation The purpose is to provide a system and a leak information providing method.

The problem to be solved of the present invention is not limited to the aforementioned problem. Other technical problems not mentioned will be clearly understood by those skilled in the art from the following description.

Leakage management system according to the present invention, the detection unit (100-N) is installed in the pipe to acquire and detect the airborne RF and vibration sound waves, and learning the change data of the vibration sound waves according to the time changes, the pipe state information and vibration It comprises a management server 200 for outputting the position information of the sound wave, and the terminal 300 for visually providing a detection marker according to the position information of the pipe and the state information of the pipe.

In one embodiment, the change data of the vibration sound wave according to the temporal change is the change data of the vibration sound wave according to the surface corrosion of the pipe, the change data of the vibration sound wave due to aging of the connection member, the change data of the vibration sound wave according to the material of the pipe, At least one of the change data of the vibration sound waves due to leakage.

The management server 200 according to the present invention receives the leakage learning module 210 and the vibration sound wave transmitted from the detection unit 100-N to obtain a leakage model from the collected leakage data, and using the leakage model, Signal analysis module 220 for outputting the pipe state information, and received the airwave RF and vibration sound wave transmitted from the detection unit 100-N, calculate the position of vibration sound wave, and output the position information of the vibration sound wave A coordinate calculation module 230 is included.

Leakage information providing method according to the present invention, learning the collected leakage data to obtain a leakage model (S100), receiving the airwave RF and vibration sound wave from the detection unit (S200), and using the leakage model, And outputting state information of the pipe from the received vibration sound wave (S300), and outputting position information of the vibration sound wave from the received airwave RF and vibration sound wave (S400).

In one embodiment, the collected leakage data is the change data of the vibration sound waves according to the surface corrosion of the pipe, the change data of the vibration sound waves due to the aging of the connecting member, the change data of the vibration sound waves according to the material of the pipe, vibration sound waves due to leakage At least one of the change data of the.

Acquiring a leak model according to the present invention (S100), the step of receiving the collected leak data (S110), learning the leak data to obtain a leak model (S120), and stores the obtained leak model It includes a step (S130).

In one embodiment, the leak model has a learned vibration frequency band consisting of a leak frequency band and a leakable frequency band.

According to the present invention, the state information of the pipe and the position information of the vibration sound wave are transmitted to the terminal, and a detection mark indicating a leak marker or a leakable marker is displayed on the screen of the terminal.

According to the present invention, it is possible to learn the change data of the vibration sound wave according to the temporal change, and detect the leak position of the pipe using the learned leak model.

According to the present invention, by using the delay time of the airwave RF, by synchronizing the vibration sound wave detection time of the sensors spaced apart from each other, it is possible to eliminate the time error that can occur from the detection time of the vibration sound wave to the leak position calculation.

According to the present invention, the field operator can easily know the leak location of the pipe by looking at the detection marker displayed on the pipe map screen of the terminal.

1 shows a leak management system according to an embodiment of the present invention.
2 is a flowchart illustrating a method of providing leak information according to the present invention.
3 is a flowchart illustrating a method of learning a leak model according to the present invention.
4 is a flowchart illustrating a method of obtaining positional information of vibration sound waves according to the present invention.
5 is a schematic view showing that a detector is installed in a pipe.
6 is a view for explaining a method for synchronizing the first and second vibration sound waves according to the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. The terms "unit", "module", "device", "terminal", "server", and "system" used in the embodiments may be a combination of hardware and software. The hardware may be a data processing device including a CPU or a processor, and the software may refer to a program executed in the hardware.

1 shows a leak management system according to an embodiment of the present invention.

Leakage management system according to an embodiment of the present invention is installed in the pipe and the detection unit 100-N for acquiring and detecting the airborne RF and vibration sound waves, and learning the change data of the vibration sound waves over time, the state of the pipe It comprises a management server 200 for outputting information and position information of the vibration sound wave, and the terminal 300 for visually providing a detection marker according to the status information of the pipe and the position information of the vibration sound wave.

According to an embodiment, the change data of the vibration sound waves according to the temporal change may include change data of the vibration sound waves due to surface corrosion of the pipe, change data of the vibration sound waves due to aging of the connecting member, change data of the vibration sound waves according to the material of the pipe, At least one of the change data of the vibration sound waves due to leakage.

Signals and data between the detection unit 100 -N, the management server 200, and the terminal 300 may be transmitted by wired communication using a cable, wireless communication, 3G, 4G, or other communication methods. In an embodiment, the wired / wireless communication may be one or more communication methods selected from the group consisting of LAN, GSM, WCDMA, CDMA, Bluetooth, Zigbee, Wi-Fi, VoIP, LTE, and the like, and is not limited thereto.

The detection unit 100-N, where N is natural water is installed in the pipe. Fluid may move through the piping, and the fluid may be a gas or a liquid. In the present invention, the pipe is a water supply pipe, and the fluid is described as water (water).

The detection unit 100 -N may be installed in plural places at a predetermined distance from the pipe. The detection unit 110-N for detecting the vibration sound wave and the RF receiving module 120-N for acquiring air frequency RF, and the communication module 130-N for transmitting the vibration sound wave and air RF to the management server ) May be included.

In an embodiment, the first detector and the second detector may be installed at positions spaced apart from the pipe PW by a predetermined distance, and the first and second sensors detect vibration sound waves generated between the first and second detectors, respectively. can do.

The RF receiving module 120-N obtains over-the-air RF. The airwave RF may be an AM broadcast signal or an FM broadcast signal. As will be described later, over-the-air RF is used for the synchronization of vibration sound waves.

The management server 200 may be a computing device including a signal and data processing processor and a communication module. An input device such as a mouse or a keyboard may be connected to the management server, and an output device such as a monitor or a printer may be connected to the management server.

The management server learns a leak model from the leak data collected. Training of such a leak model may be performed in a neural network.

In addition, the management server outputs the pipe state information from the vibration sound wave input using the leak model. In addition, the management server outputs the position information of the vibration sound wave from the input RF and vibration sound wave.

The management server 200 according to the present invention includes a leak learning module 210, a signal analysis module 220, a coordinate calculation module 230, and a communication module 240.

The leak learning module 210 obtains a leak model. The leak learning module learns and updates leak models from the leak data collected. In this case, the collected leakage data may be signal change data of vibration sound waves generated from surface corrosion of the pipe, aging of the connecting member, and the like to finally leak.

The leak model has a range of vibration frequencies by learning, that is, a learned vibration frequency band. The learned vibration frequency band may be signal change data of the vibration frequency occurring in the leaking step and the leaking step. In an embodiment, the learned vibration frequency band may be a leakage frequency band and a leakable frequency band.

The signal analysis module 220 receives the vibration sound wave transmitted from the detection unit 100 -N and outputs the state information of the pipe using the leak model. In this case, the state information of the pipe may be a leak signal or a leak possible signal.

On the other hand, after the pipe is buried aging proceeds, the pipe surface may be gradually corroded. Finally, surface corrosion leads to leakage. In addition, leakage may occur due to aging of the connection member such as a clamp or a packing. Due to corrosion or leakage, vibration sound waves having a specific frequency band are generated.

The signal analysis module outputs pipe state information from the input vibration sound wave. The state information may be a leak signal or a leak possible signal.

In this case, when the input vibration sound wave is the learned leak frequency band, the leakage signal may be output. When the input vibration sound wave is the learned leak frequency band, the leakable signal may be output.

As an example, the frequency analysis of the vibration sound wave using the leak model may be performed by a fast fourier transform, and may be performed by comparing the second harmonic and the third harmonic included in the frequency of the vibration sound wave. have.

The coordinate calculation module 230 receives the airwave RF and the vibration sound wave transmitted from the detector 100 -N, calculates the generation position of the vibration sound wave, and outputs the position information of the vibration sound wave. The location information may be coordinate data.

As an example, the coordinate calculation module may calculate the generation position of the vibration sound wave by aligning the vibration sound waves based on the airwave RF, and calculating the difference in arrival time of the aligned vibration sound waves.

The communication module 240 outputs the pipe state information to the terminal. In addition, the communication module outputs the position information of the vibration sound waves to the terminal.

The terminal 300 may be a device carried by a field worker. The terminal 300 receives the status information of the pipe and the position information of the vibration sound wave from the management server 200 and provides a leakage position to the field worker. The terminal may include a GPS module, a map information module, a display module, and a communication module.

According to an embodiment, the pipe line may be displayed on the display screen of the terminal by overlapping a map, and a detection mark may be visually displayed at at least one point of the pipe line. The detection marker may be a leak marker or a leakable marker.

Hereinafter, a leak information providing method using a leak management system according to the present invention will be described.

2 is a flowchart illustrating a method of providing leak information according to the present invention.

Leakage information providing method according to the invention learning the leaked data collected to obtain a leaking model (S100), receiving the airwave RF and vibration sound wave from the detection unit (S200), using a leaking model, And outputting state information of the pipe from the received vibration sound wave (S300), and outputting position information of the vibration sound wave from the received airwave RF and vibration sound wave (S300).

In step S100, the collected leak data is learned to obtain a leak model. In one embodiment, the leak data may be a change in the leaking vibration sound wave with time. The leak data may be a vibration sound generated from the aging of the pipe to the final leak.

In step S200, airwaves RF and vibration sound waves are received from the detection unit. The airwave RF may be an AM signal or an FM signal.

The transmitted vibration sound waves are input to the signal analysis module and the coordinate calculation module, and the airwave RF is input to the coordinate calculation module.

In step S300, the signal analysis module outputs the state information of the pipe. The signal analysis module outputs the pipe state information from the input vibration sound wave by using the learned leak model. As an embodiment, the state information of the pipe may be a leak signal or a leak possible signal.

The signal analysis module may output a leak signal when the input vibration sound wave is a learned leak frequency band, and output a leak signal when the input vibration sound wave is a learned leak frequency band.

In step S400, the coordinate calculation module outputs the position information of the vibration sound wave. The coordinate calculation module calculates the position information of the vibration sound wave from the input airwave RF and vibration sound wave. As an embodiment, the positional information of the vibration sound waves may be coordinate data of a pipe in which the vibration sound waves are generated.

As another example, step S300 and step S400 may be performed at the same time, respectively, and may transmit the result to the terminal.

Thereafter, the pipe state information and the position information of the vibration sound waves are transmitted to the terminal. The map image of the pipe line may be displayed on the screen of the terminal, and a detection mark may be visually displayed at at least one point of the pipe line.

In one embodiment, the detection marker may be a leak marker or a leakable marker. The leak marker may be a marker according to the leak, the leakable marker may be a marker according to the surface corrosion of the pipe.

The operator carrying the terminal can visually check the detection markers appearing on the screen of the terminal and check whether there is a leak or a possibility that the leak may occur at the corresponding point.

Hereinafter, the learning of the leak model performed in the leak learning module according to the present invention will be described.

3 is a flowchart illustrating a method of learning a leak model according to the present invention.

Each step of the learning method of the leak model according to an embodiment of the present invention is described as being made in the leak learning module, but may be processed in a separate device according to the embodiment, and the processing result may be transmitted to the management server.

In accordance with an embodiment of the present invention, a method of learning a leak model includes: receiving received leak data (S110), learning leak data to obtain a leak model (S120), and storing the obtained leak model (S130). ).

In step S110, the leak learning module receives the collected leak data. The leak data may be stored in the learning module storage space connected to the leak learning module, or may be stored in the storage space of the management server.

The collected leak data may be change data of vibration sound waves according to a temporal change. For example, the collected leakage data may include change data of vibration sound waves according to aging pipes, change data of vibration sound waves due to aging pipe connecting members, and change data of vibration sound waves according to materials of the pipes.

In step S120, the leak learning module learns the leak data collected to obtain a leak model.

The leak model learns a vibration frequency band from the change data of the vibration sound wave according to a temporal change, and the learned vibration frequency band may include a leakable frequency band and a leaking frequency band.

In step S130, the leak learning module stores the obtained leak model. In an embodiment, the learned leak model may be stored in a learning module storage space connected to a leak learning module, or may be stored in a storage space of a management server.

Hereinafter, a method of obtaining position information of vibration sound waves in a coordinate calculation module according to the present invention will be described.

4 is a flowchart illustrating a method of obtaining positional information of vibration sound waves according to the present invention.

According to an embodiment of the present invention, a method of acquiring position information of vibration sound waves includes receiving an air wave RF and vibration sound waves (S410), detecting a delay time of the air wave RF, and aligning the vibration sound waves with the detected delay time. Synchronizing the vibration sound wave (S420), and calculating the difference in time of arrival from the synchronized vibration sound wave (S430).

5 is a schematic view showing that a detector is installed in a pipe.

Referring to FIG. 5, the first detection unit 100-1 and the second detection unit 100-2 are provided in the pipe PW at predetermined intervals D, respectively. Reference numeral LP denotes a generation position of vibration sound waves.

The RF receiving module of the detection unit according to the present invention obtains the airwave RF. In addition, the sensor of the detection unit detects the vibration sound waves transmitted to the pipe (PW).

In an embodiment, the first RF receiving module of the first detector and the second RF receiving module of the second detector acquire first and second airwave RFs, respectively. In addition, the first sensor of the first detector and the second sensor of the second detector detect the first and second vibration sound waves, respectively.

Subsequently, the first and second detectors transmit the first and second airwaves RF and the first and second vibration sound waves to the management server.

In one embodiment, the first communication module of the first detection unit transmits the first airwave RF and the first vibration sound wave to the management server, and the second communication module of the second detection unit transmits the second airwave RF and the second vibration sound wave to the management server. To send.

In step S410, the coordinate calculation module receives the first and second airwaves RF and the first and second vibration sound waves.

In step S420, the delay time between the first and second airwave RF transmitted from the first and second detectors is detected, and the first and second vibration sound waves are aligned based on the detected delay time. Synchronize vibration sound waves.

6 is a view for explaining a method for synchronizing the first and second vibration sound waves according to the present invention.

6 (a) shows the air wave RF (RF-1) and the vibration sound wave (LF-1) obtained by the first detection unit, Figure 6 (b) shows the air wave RF (RF-2) obtained by the second detection unit And oscillating sound wave (LF-2).

First, referring to ① of FIG. 6, the delay time Δt is detected by comparing the airwave RFs RF-1 and RF-2. As an example, the delay time Δt may be detected using cross correlation.

Next, referring to (2), the detected delay time is set as a correction value to align the vibration sound waves. Fig. 6 (C) shows the alignment of the vibration sound waves LF-2 by the delay time Δt, which is a correction value. By correcting the vibration sound wave LF-2 by the delay time, that is, the correction value, the first vibration sound wave LF-1 and the second vibration sound wave LF-2 can be used as the vibration sound waves detected at the same time.

Through this process, the arrival time difference Td can be obtained from the synchronized vibration sound waves. The arrival time difference is shown in ③.

In step S430, the position information from which the vibration sound waves are generated is obtained from the difference in arrival time.

Based on the time difference Td between the first vibration sound wave LF-1 and the second vibration sound wave LF-2, position information, that is, coordinate data, is generated from the vibration sound wave in the pipe. The method of acquiring such coordinate data may be performed by a known calculation method or an acquisition method.

Leakage information providing method according to an embodiment of the present invention may be at least partly implemented as a computer program and recorded on a computer-readable recording medium. In an embodiment, the recording medium includes all kinds of recording devices for storing data that can be read by a computer.

In one embodiment, examples of the computer-readable recording medium may be ROM, RAM, HDD, SDD, optical data storage, cloud, etc. The program stored in the computer-readable recording medium may be stored in a networked computer system. It may be executed in a distributed manner.

As mentioned above, although this invention was demonstrated in detail through the specific Example, this invention is not limited to the said Example, A various deformation | transformation is possible for a person with ordinary knowledge within the scope of the technical idea of this invention.

100-N: detector
110-N: Sensor
120-N: RF Receiving Module
130-N: Communication module (detection unit)
200: management server
210: leak learning module
220: signal analysis module
230: coordinate calculation module
240: communication module (of management server)
300: terminal
PW: Piping

Claims (5)

A detection unit (100-N) installed in the pipe for acquiring and detecting airwave RF and vibration sound waves;
Management server 200 for learning the change data of the vibration sound wave according to the time change, and outputs the status information and position information of the vibration sound wave of the pipe,
It comprises a terminal 300 for visually providing a detection marker according to the state information of the pipe and the position information of the vibration sound wave,
The management server 200 receives a leak learning module 210 for obtaining a leak model from the leak data collected and the vibration sound waves transmitted from the detection unit 100 -N, and uses the leak model to determine the pipe state information. Coordinate calculation module for receiving the signal analysis module 220 and the airwave RF and the vibration sound wave transmitted from the detection unit 100-N, calculate the generation position of the vibration sound wave, and output the position information of the vibration sound wave (230),
The leakage model is a leakage management system, characterized in that learning the change data of the vibration sound waves from the aging of the pipe and the connecting member of the pipe to the leakage occurs.
The method according to claim 1,
The position information of the vibration sound wave receives the airwave RF and the vibration sound wave from the detection unit, aligns the vibration sound waves by using the airwave RF, calculates the difference in arrival time of the synchronized vibration sound waves, and then calculates coordinate data of the vibration sound waves. Leakage management system characterized in that.
Learning the leak data collected to obtain a leak model (S100);
Receiving the air wave RF and vibration sound wave from the detection unit (S200),
Outputting state information of a pipe from the received vibration sound wave by using a leakage model (S300);
And outputting position information of the vibration sound wave from the received airwave RF and vibration sound wave (S400),
The obtaining of the leak model (S100) may include receiving the leak data (S110), learning the leak data to obtain a leak model (S120), and storing the obtained leak model ( S130),
The leakage model learns the change data of the vibration sound waves from the aging of the pipe and the connecting member of the pipe to the leakage occurs,
Leakage information providing method characterized in that it has a learned vibration frequency band consisting of a leakage frequency band and a leakable frequency band.
The method according to claim 3,
The position information of the vibration sound wave receives the airwave RF and the vibration sound wave from the detection unit, aligns the vibration sound waves by using the airwave RF, calculates the difference in arrival time of the synchronized vibration sound waves, and then calculates coordinate data of the vibration sound waves. Leak information providing method, characterized in that.
The method according to claim 3 or 4,
Leak information providing method characterized in that the state information of the pipe and the position information of the vibration sound wave is transmitted to the terminal, the detection marker indicating a leak marker or a leakable marker on the screen of the terminal.

Images