KR102313851B1 - Water leak detection system - Google Patents

Abstract

The present invention relates to a water leak sound management/operation system. More specifically, since software in a portable terminal can automatically determine whether there is a water leak based on a measurement value measured from a water leak sound collector, the water leak sound management/operation system can determine whether there is a water leak from an underground pipe regardless of a skill level of a worker. Since the measurement value is matched with position information and stored, the system can quickly identify in which spot a water leak occurs. Since the measurement value is matched with pipe type information or facility information and stored, the system can determine whether there is a water leak using water leak sound data of a zone having similar pipe type information or facility information even when there is an ongoing water leak on a new measurement position. Since the system can accumulate measurement values and determine whether there is a water leak by simply performing measurement on a position corresponding to position information using a portable water leak sound collector and a portable terminal, there is no need to install a measurement device in every underground pipe. Since the portable terminal can be placed on the water leak sound collector to be used, the system can be easily held. The water leak sound management/operation system includes a water leak sound collector; a portable terminal determining whether there is a water leak; and a server receiving and storing a result of the determination.

Description

Water leak detection system {Water leak detection system}

The present invention relates to a water leak management operating system, and more particularly, since it is possible to automatically determine whether a water leak occurs in software of a portable terminal based on a measurement value measured from a water leak sound collecting device, regardless of the skill level of the operator It is possible to determine whether there is a leak in the underground pipe, and because the measured value is stored by matching the location information, it is possible to quickly find out whether the leak occurred at any point, and the measured value is stored by matching the pipe type information or facility information. , even if a leak is already in progress at the new measurement location, it is possible to determine whether there is a leak using the leak sound data of the area having similar pipe type information or facility information, Since it is possible to determine the accumulation of measured values and whether there is a leak even by measuring only at the corresponding location, it is not necessary to have a measuring device for every underground pipe, and it is easy to hold because it can be used by attaching a portable terminal to the leak sound collecting device An object of the present invention is to provide a leak sound management operating system.

Waterworks pipelines are operated underground, but they are damaged by earthquakes, subsidence, and pressure from the top, resulting in leakage. In particular, since such a water supply pipe is often located under the road, there is a problem in that it is continuously subjected to pressure according to the passage of a vehicle and is damaged.

Since such a water leak in the water supply pipe has various problems, such as not only waste of water resources, but also weakening of the ground in the leaking area, it is important to repair the leaking part quickly.

However, since most of the water supply pipes are buried underground, in the prior art, one end of the rod-shaped listening rod was placed in contact with the ground, and the other end was inserted into the ear to check for leaks through the underground noise propagating through the listening rod.

However, the method using such a hearing rod had a problem that a skilled worker was necessarily required, such as a false positive rate of 10% to 80% depending on the skill level of the operator.

Therefore, it is necessary to develop a system that allows non-experts to perform leak exploration work and accurately analyze leak sound.

KR20-0355166 (registration number) 2004.06.24.

According to the present invention, since it is possible to automatically determine whether the software of the portable terminal is leaking based on the measured value measured from the leak sound collecting device, the leak sound management operation that can determine whether the underground pipe is leaking regardless of the skill level of the operator The purpose is to provide a system.

In addition, an object of the present invention is to provide a leak sound management operating system that can quickly find out whether a leak has occurred at any point because the measured value is matched with location information and stored.

In addition, since the present invention stores the measured value by matching it with pipe type information or facility information, even if water leakage is already in progress at the new measurement location, it is determined whether water leaks by using water leak data from an area having similar pipe type information or facility information. It aims to provide a leak sound management operating system that can do this.

In addition, the present invention, since it is possible to determine the accumulation and leakage of measured values even if the measurement is performed at a location corresponding to the location information using a portable leak sound collecting device and a portable terminal, the measuring device for every underground pipeline An object of the present invention is to provide a leak sound management operating system that does not need to be provided.

In addition, an object of the present invention is to provide a leak sound management operating system that can be utilized by mounting a portable terminal on a water leak sound collecting device, which is easy to hold and can freely use a measurer's hand.

The present invention includes a housing having a hollow portion formed therein, a controller provided in the housing, a communication unit provided in the housing and electrically connected to the controller, and the controller provided inside the lower end of the housing a sound wave sensor that is electrically connected to and transmits a measurement value to the controller when vibration is transmitted, and a rechargeable battery provided inside the housing to provide driving power to the controller, the communication unit, and the sound wave sensor; a leak sound collecting device coupled to the outside of the lower end of the housing and including a bracket for transmitting an external vibration signal to the sound wave sensor; a portable terminal for receiving the measurement value of the sound wave sensor from the leak sound collecting device and determining whether a leak occurs; A server for receiving and storing the measurement value of the sound wave sensor or the determination result of whether leakage occurs from the portable terminal; including, wherein the portable terminal converts the measurement value of the sound wave sensor into frequency data, and then the frequency data A pattern is extracted from the , and it is determined that a leak has occurred if the similarity is greater than or equal to a set ratio by comparing the extracted pattern with a leak suspicious frequency pattern set based on past leak sound data.

In addition, the bracket for sound transmission of the present invention is detachably provided on the housing, is formed in a disk shape, and a plurality of sound transmission protrusions are formed at the bottom of the bracket for contacting the road surface or a bracket for contacting a buried valve formed in a rod shape. Either one is mounted on the housing.

In addition, the present invention includes a cradle coupled to one side of the housing to mount the portable terminal, wherein the cradle includes a cradle head on which the mobile terminal is seated and fixed, and one end coupled to the cradle head and the other end It is coupled to one side of the housing and includes a mounting arm having an auxiliary battery mounting portion formed on one side.

In addition, the portable terminal of the present invention is provided with a GPS module, and when transmitting the measurement value of the sound wave sensor, transmits the location coordinates of the place where the measurement value of the sound wave sensor is generated to the server.

In addition, in the portable terminal of the present invention, the pipe type information corresponding to the location coordinates is pre-stored, or the pipe type information corresponding to the location coordinates is transmitted and stored from the server, and the extracted pattern and the pipe type information It is determined whether there is a leak by comparing the leak suspicious frequency pattern corresponding to the .

In addition, when it is reported that the actual leak has occurred at the point corresponding to the location coordinates, the server of the present invention corrects and stores the suspected leak frequency pattern corresponding to the pipe type information by using the extracted pattern.

In addition, in the portable terminal of the present invention, facility information corresponding to the location coordinates is pre-stored, or facility information corresponding to the location coordinates is transmitted and stored from the server, and the extracted pattern and the facility information It is determined whether there is a leak by comparing the leak suspicious frequency pattern corresponding to the .

In addition, when it is reported that the actual leak has occurred at the point corresponding to the location coordinates, the server of the present invention corrects and stores the suspected leak frequency pattern corresponding to the facility information using the extracted pattern.

According to the present invention, since it is possible to automatically determine whether the software of the portable terminal is leaking based on the measured value measured from the leak sound collecting device, there is an effect that can determine whether the underground pipe is leaking regardless of the skill level of the operator.

In addition, since the present invention stores the measured value by matching the location information, there is an effect that it is possible to quickly find out whether the leak occurred at any point.

In addition, since the present invention stores the measured value by matching it with pipe type information or facility information, even if water leakage is already in progress at the new measurement location, it is determined whether water leaks by using water leak data from an area having similar pipe type information or facility information. There is an effect that can be done.

In addition, the present invention, since it is possible to determine the accumulation and leakage of measured values even if the measurement is performed at a location corresponding to the location information using a portable leak sound collecting device and a portable terminal, the measuring device for every underground pipeline There is an effect that it is not necessary to have it.

In addition, since the present invention can be utilized by mounting the portable terminal on the leak sound collecting device, it is easy to hold and the hand of the measurer can be freely used.

1 is a perspective view of a portable terminal mounted on a water leakage sound collecting device of a water leakage sound management operating system according to an embodiment of the present invention;
Figure 2 is a perspective view showing a modified example of the sound transmission bracket of Figure 1;
3 is an exploded perspective view of a water leakage sound collecting device of a water leakage sound management operating system according to an embodiment of the present invention;
4 is a perspective view of a water leakage sound collecting device of a water leakage sound management operating system according to another embodiment of the present invention;
5 is an exemplary monitoring diagram of a leak sound management operating system according to an embodiment of the present invention.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

The present invention, as shown in Figures 1 to 5, a water leak sound collecting device 100 that collects sound waves transmitted in the form of vibration signals from a pipe on the ground or underground, and a sound wave sensor from the leak sound collecting device 100 A portable terminal 200 that receives the measurement value and determines whether leakage occurs, and a server (not shown) that receives and stores the measurement value of the sound wave sensor or the determination result of whether leakage occurs from the portable terminal 200 is composed by

The leak sound collection device 100 serves to collect sound waves transmitted in the form of vibration signals from pipes on the ground or underground and transmit them to the portable terminal 200 .

To this end, the leak sound collection device 100 includes a housing having a hollow portion formed therein, a controller provided in the housing, a communication unit provided in the housing and electrically connected to the controller, and a lower inner side of the housing. a sound wave sensor that is electrically connected to the controller and transmits a measured value to the controller when vibration is transmitted; a rechargeable battery provided inside the housing to provide driving power to the controller, communication unit, and sound wave sensor; and the lower outer part of the housing It is coupled to and is configured to include a sound transmission bracket (110, 120) for transmitting an external vibration signal to the sound wave sensor.

The housing has a hollow interior and is configured to accommodate a controller, a communication unit, a sound wave sensor, and a rechargeable battery in the hollow interior, and although a cylindrical housing is illustrated in the drawing, it is not limited thereto and may be formed in various shapes.

Brackets 110 and 120 for sound transmission are coupled to the lower end of the housing, and a coupling protrusion 101 for coupling the brackets 110 and 120 for sound transmission may be formed to protrude from the lower end of the housing. And, it is preferable that the sound wave sensor is provided at the lower inner side of the housing so as to sense the vibration signal transmitted from the sound transmission brackets (110, 120) when the sound transmission brackets (110, 120) are coupled.

The material of the housing is preferably made of a synthetic resin material so that the radio waves of the communication unit provided therein can be emitted into the housing, but it can also be formed of a material that blocks radio waves, such as metal, and the housing is made of a material that blocks radio waves. In this case, the antenna for transmitting and receiving radio waves should be exposed to the outside of the housing.

A signal input unit 103 may be provided in the form of a connector on one side of the housing to receive a separate pressure signal, power signal, and flow signal, and the signal input unit 103 is normally sealed by a cap. In addition, a power button 104 for turning on/off the power of the controller and other electronic components is provided on the other side of the housing.

On the other hand, the upper end of the housing is provided with a fixing unit 102 so as to couple the holder 300 to be described later. The fixing part 102 is fixed to the upper end of the housing in the form of a bolt or a nut. A rope 105 may be coupled to this fixing part 102, and when the rope 105 is coupled, a measurer holds the end of the rope 105 in his hand and carries the housing and is used in a manner to seat it on the ground. At this time, the portable terminal 200 is held by the measurer in the other hand and the measurement result can be checked, and since he carries the housing using the rope 105, there is an advantage in that there is no need to bow down to seat the housing in the measurement place. .

The cradle 300 integrates the portable terminal 200 with the housing to facilitate gripping like a single piece of equipment, and helps fix the portable terminal 200 during measurement so that the measurer can freely use both hands, For this, one side of the housing, preferably, is provided coupled to the upper end of the housing.

The holder 300 includes a mounting head 310 on which the portable terminal 200 is seated and fixed, one end coupled to the mounting head 310 and the other end coupled to one side of the housing, and an auxiliary battery mounting unit 321 on one side. It is configured to include a mounting arm 320 is formed.

The mounting head 310 presses both sides of the portable terminal 200 while supporting the rear surface of the portable terminal 200 so that the portable terminal 200 can be fixed, and has the same structure as the conventional mobile phone holder 300 . has

The mounting arm 320 is coupled between the mounting head 310 and the housing so as to be fixed by supporting the mounting head 310 from the housing, and the mounting arm 320 may be configured in a single frame form, or in a multi-joint form. It may be configured so that the support angle of the mounting head 310 can be varied. In addition, the auxiliary battery mounting unit 321 is formed on one side of the mounting arm 320 , and the auxiliary battery mounting unit 321 may be provided with an adhesive pad or a fixing clip on one surface for fixing the auxiliary battery 210 .

The controller serves to receive the measurement value of the sound wave sensor and transmit it to the portable terminal 200 through the communication unit, and for this purpose, it is provided in the housing and is electrically connected to the sound wave sensor and the communication unit. In this case, the measured value of the sound wave sensor may be converted into a voice signal form and stored as a file, and configured to transmit the stored voice file to the portable terminal 200 .

The communication unit serves to receive the measurement value of the sound wave sensor or the voice file from the controller and transmit it to the portable terminal 200, and for this purpose, it is provided in the housing and electrically connected to the controller.

The communication unit communicates with the portable terminal 200 using a communication standard such as Bluetooth or Wi-Fi, and other known short-range wireless communication standards may be applied.

The sound wave sensor serves to generate a measurement value corresponding to the vibration signal when vibration is transmitted from the sound transmission brackets 110 and 120 and transmit it to the controller. To this end, the sound wave sensor is provided at the inner lower end of the housing and is electrically connected to the controller.

The sound wave sensor is in direct contact with the sound transmission brackets 110 and 120 to receive a vibration signal, but a sealed sound amplifying unit with a hollow inside is provided between the sound wave sensor and the sound transmitting brackets 110 and 120 to receive sound. It may be configured to amplify the vibration signal conducted on the transmission brackets 110 and 120 and provide it to the sound wave sensor.

The sound transmission brackets 110 and 120 are coupled to the lower end of the housing to transmit vibrations of the ground or pipe to the sound wave sensor, and are detachably provided in the housing.

These sound transmission brackets (110, 120) are formed in a disk shape and a plurality of sound transmission protrusions 111 are formed at the bottom of the road contact bracket 110, or a buried valve contact bracket formed in a rod shape ( 120) is mounted on the housing.

The rechargeable battery serves to provide driving power to the controller, the communication unit, the sound wave sensor, and the like, and for this purpose, it is provided in the housing and is electrically connected to the controller, the communication unit, and the sound wave sensor. In addition, a charging terminal for charging the rechargeable battery may be exposed to the outside of the housing.

The portable terminal 200 receives the measurement value of the sound wave sensor from the water leak sound collection device 100 and determines whether water leakage occurs. For this purpose, the portable terminal 200 is capable of Bluetooth or Wi-Fi communication with the communication unit of the water leak sound collection device 100, and can communicate with a remote server through a commercial mobile communication line, and it is possible to install software for water leak detection And a normal smartphone or tablet PC that can display the information processing result can be the target. In addition, the portable terminal 200 is provided with a GPS module to generate the location coordinates of the measurement location.

The portable terminal 200 converts the measured value of the sound wave sensor into frequency data, extracts a pattern from the frequency data, compares the extracted pattern with a leak suspicious frequency pattern set based on past leak sound data, and sets the similarity If it is more than the ratio, it is determined that a leak has occurred.

Looking at the process of determining whether a water leak has occurred in the portable terminal 200 , first, the portable terminal 200 receives a measurement value of the sound wave sensor or a voice file generated therefrom from the water leakage sound collecting apparatus 100 . At this time, since the data transmitted to the portable terminal 200 is data of sound measured by the sound wave sensor, it has a waveform shape that varies in time series. In such a time series waveform, since a noise component is added to a leaky sound component and distortion of the waveform occurs, it is separated into a noise component and a leaky sound component, and it is difficult to extract a specific pattern, so it is not necessary to transform it into a frequency series waveform have. A Fast Fourier Transform (FFT) is used to transform the frequency series. The FFT can specify the amplitude for each frequency of each sine wave in a waveform in which sine waves of different frequencies are superimposed. Since the FFT method is a well-known technique, detailed formulas will be omitted.

The portable terminal 200 converts time series data into frequency data by performing FFT on the transmitted measurement value. Then, a pattern is extracted from the frequency data, and the extracted pattern is compared with a leak suspicious frequency pattern set based on past leak sound data, and if the similarity is greater than a set ratio, it is determined that a leak has occurred.

When a leak occurs in a pipe, a peak in a specific frequency band is formed to be high, unlike when water normally flows in the pipe. The frequency and peak value of the frequency band in which the peak is formed at the time of such leakage become the target of pattern formation. Therefore, when the frequency pattern measured and converted at the measurement location is similar to the frequency pattern of cases in which the leak has actually occurred in the past, it is determined that the leak has occurred. At this time, the similarity is calculated by comparing which frequency band has which peak value and how many times larger peak value than that of other frequency bands, etc. An example of this may be a method of confirming as .

However, in most cases, the water supply pipe is buried underground, and the pipe is formed of various materials such as synthetic resin and metal, and it leaks due to the geology around the pipe, the road pavement condition, the presence or absence of a large building nearby, etc. The frequency pattern at the time of occurrence may be very different depending on the measurement location.

For example, with the urban topography of city A, 10 high-rise buildings with 20 stories or more, and the conventional measurement value pattern and water leak information of 100 surrounding shopping malls, the urban topography of city B, 9 high-rise buildings with 20 stories or more , if there is a new measurement location of 80 nearby shopping malls, the measurement value pattern and leak sound information of city A can be similarly applied to city B at the beginning. If city B is newly measured without such initial pattern information or leak sound information, if the pipeline in city B has already leaked, a pattern is formed by measuring the leaking sound, and this pattern will be used in the future as well. This is because it is difficult to determine whether there is a leak unless there is a change in the leaking part because it must be used to determine whether there is a leak.

In addition, the initial pattern and leak sound information based on the location information and facility information become more subdivided and precise as the measurement cases are repeated, so that the measurement at the new measurement location also has the effect of becoming more precise.

At this time, since the measured value pattern varies according to the depth of the pipeline buried, the geology of the point where the pipeline is buried, etc., even if the pipe type or facility is similar, first, at the new measurement location, it is necessary to determine whether a leak has already occurred in the area. It is better to focus on checking whether or not Since the frequency spectrum pattern of the leak sound is relatively characteristic compared to the normal noise of the pipeline, it is possible to determine only whether there is a leak at the new measurement location, and to form a measurement value pattern only at the location from the newly measured values. It is preferable to do To this end, when it is determined that a leak has occurred at a certain measurement location, the server corrects and stores leak sound information by pipe type or facility at the location based on location information and facility information of the measurement location, and stores it at the new measurement location. When determining the leak of , it is applied as an initial pattern of leak sound information corresponding to the pipe type or facility extracted based on the facility information of the new measurement location. At this time, the portable terminal 200 determines that the measured value is leaked when the similarity with the leak sound pattern stored as the initial pattern is greater than or equal to the set ratio of the measured value at the new measuring position.

Therefore, to summarize, the portable terminal 200 transmits the location coordinates of the place where the measurement value of the sound wave sensor is generated to the server when the measurement value of the sound wave sensor is transmitted. In addition, the portable terminal 200 pre-stores information on the type of government or facility information corresponding to the location coordinates of the place to be currently measured, or transmits and stores information on the type or facility information corresponding to the location coordinates from the server. By comparing the extracted frequency pattern with the suspected leak frequency pattern corresponding to the pipe type information or facility information, it is determined whether there is a leak.

And, when it is reported that an actual leak has occurred at a point corresponding to the location coordinates where the measured value is generated, the server uses the measured and extracted pattern to correct the pattern of the suspected leak frequency corresponding to the pipe type information or facility information. will be saved In addition, as these cases are repeated, not only the pattern of the suspected leak frequency in the area becomes more accurate, but also sufficient data can be accumulated for more detailed parameters such as which geology, which pipe type, which burial depth, and which facility is near. Through this, even when the first measurement is made in a new area, it will be possible to provide a frequency pattern with a suspected leak that meets the conditions of the new area.

And, as shown in FIG. 5 , the location where the water leak was measured is displayed on the map on the monitoring device of the portable terminal 200 or the server, and when the corresponding point is selected, a leak sound can be heard or a frequency series pattern of the leak data can confirm.

In addition, when the result determined that the leak has occurred is output from the portable terminal, additional measurements are made at a set interval around the measurement location, and the peak value of the pattern among the additional measurement points is the largest, that is, the leak sound. It becomes possible to derive the point where the greatest occurrence occurs, and when the location coordinates of the point are transmitted to the server, the server specifies the location of the leak in response to the facility information or the pipe type information of the point where the leak sound is the most and determines the location of the point. excavation, actual leak check and repair work will be carried out.

According to the present invention having the above-described configuration, since the software of the portable terminal 200 can automatically determine whether there is a water leak based on the measured value measured from the leak sound collecting device 100, regardless of the skill level of the operator, the It has the effect of determining whether there is a leak or not.

In addition, since the present invention stores the measured value by matching the location information, there is an effect that it is possible to quickly find out whether the leak occurred at any point.

In addition, since the present invention stores the measured value by matching it with pipe type information or facility information, even if water leakage is already in progress at the new measurement location, it is determined whether water leaks by using water leak data from an area having similar pipe type information or facility information. There is an effect that can be done.

In addition, according to the present invention, it is possible to determine the accumulation and leakage of measured values even if only measurement is performed at a location corresponding to the location information using the portable water leak sound collecting device 100 and the portable terminal 200 , so that all There is an effect that it is not necessary to provide a measuring device for each underground pipe.

In addition, since the present invention can be utilized by mounting the portable terminal 200 on the leak sound collecting device 100 , it is easy to hold and the hand of the measurer can be freely used.

100: leak sound collecting device 101: protrusion for coupling
102: fixed unit 103: signal input unit
104: power button 105: rope
110: bracket for road surface contact 111: sound transmission projection
120: bracket for contacting buried valve
200: portable terminal 210: auxiliary battery
300: holder 310: mounting head
320: mounting arm 321: auxiliary battery mounting part

Claims (8)

A housing having a hollow portion formed therein, a controller provided in the housing, a communication unit provided in the housing and electrically connected to the controller, and provided inside the lower end of the housing and electrically connected to the controller and a sound wave sensor that generates and transmits a measured value when vibration is transmitted to the controller; a rechargeable battery provided inside the housing to provide driving power to the controller, the communication unit, and the sound wave sensor; a leak sound collecting device coupled to a sound transmission bracket for transmitting an external vibration signal to the sound wave sensor;
a portable terminal receiving the measurement value of the sound wave sensor from the leak sound collecting device and determining whether a leak occurs;
a server for receiving and storing the measurement value of the sound wave sensor or the determination result of whether leakage occurs from the portable terminal;
including,
The portable terminal converts the measurement value of the sound wave sensor into frequency data, extracts a pattern from the frequency data, and compares the extracted pattern with a leak suspicious frequency pattern set based on past leak sound data to determine the similarity. If it exceeds the set ratio, it is determined that a leak has occurred,
The portable terminal is provided with a GPS module, and when transmitting the measured value of the sound wave sensor, transmits the location coordinates of the place where the measured value of the sound wave sensor is generated to the server,
In the portable terminal, pipe type information or facility information corresponding to the location coordinates is pre-stored, or information or facility information corresponding to the location coordinates is transmitted and stored from the server, and the extracted pattern and the pipe type are stored. Determining whether there is a leak by comparing the leak suspicious frequency pattern corresponding to the information or the facility information,
The server, when it is reported that an actual leak has occurred at a point corresponding to the location coordinates, corrects and stores a suspected leak frequency pattern corresponding to the pipe type information or the facility information at the location using the extracted pattern and a leak sound management operating system that is applied as an initial pattern of leak sound information corresponding to pipe type information or facility information extracted based on facility information of the new measurement location when water leakage is determined at the new measurement location.
The method of claim 1,
The sound transmission bracket is detachably provided on the housing, and any one of a road surface contact bracket formed in a disk shape and formed with a plurality of sound transmission protrusions at the lower end or a buried valve contact bracket formed in a rod shape is selected from the housing. The leak sound management operating system mounted on the
The method of claim 1,
and a cradle coupled to one side of the housing to mount the portable terminal.
The cradle includes a mounting head on which the portable terminal is seated and fixed, and a mounting arm having one end coupled to the mounting head and the other end coupled to one side of the housing and having an auxiliary battery mounting part formed on one side thereof. .
delete delete delete delete delete

Images