KR20220063928A - Water leak monitoring apparatus that monitors whether there is water leakage in the water pipe network and the operating method thereof - Google Patents

Abstract

Disclosed are a water leakage monitoring device for monitoring water leakage in a water pipe network and an operating method thereof. The present invention relates to a water leakage monitoring device and an operating method thereof. The water leakage monitoring device receives sensing values from leak detection sensors distributed in the water pipe network, identifies a leak detection sensor which transmits a sensing value within a predetermined outlier range among the leak detection sensors and determines whether or not a leak water has occurred in the water pipe network based on an identification result.

Description

A leak monitoring device for monitoring water leaks in a water pipe network and an operating method thereof

The present invention relates to a water leak monitoring device for monitoring water leaks in a water pipe network and an operating method thereof.

In general, a water pipe for supplying water is buried in the ground in houses, shopping malls, factories, and apartments, and a plurality of water pipes are connected like a mesh to form a water pipe network.

Usually, people want to receive clean water, so waterworks offices replace old water pipes on a regular basis, but sometimes the replacement of water pipes is not done properly.

In this way, if the replacement of the old water pipe is not performed properly, a large amount of water may be wasted, and water quality may be contaminated due to the inflow of foreign substances.

Accordingly, in order to replace and repair the leak pipe, a leak detection technology that detects the leak site has been developed.

In the past, a hearing aid was used to listen to the sound flowing through the water pipe and detect the leak. However, this method has a disadvantage in that it is not easy to detect a water leak when the water pipe is buried deep in the ground or when ambient noise is generated.

On the other hand, in recent years, as sensor technology develops, a monitoring system capable of sensing various information occurring in a water pipe using a sensor and identifying an event occurring in a water pipe based on this has been widely distributed.

In this regard, by arranging predetermined leak detection sensors in the water pipe network, it is determined whether a leak has occurred in the water pipe network, and when a leak occurs in the water pipe network, information about the location of the leak is notified to the manager. The introduction of a system may be considered.

If such a system is introduced, there will be no need to dispatch a worker to the site for leak detection, and it will be possible to quickly detect the location of the leak, which will further improve economic efficiency and efficiency.

The present invention receives a sensing value from leak detection sensors distributed and installed in a water pipe network, identifies a leak detection sensor that transmits a sensing value belonging to a predetermined outlier range among the leak detection sensors, and based on the identification result By presenting a leak monitoring device capable of determining whether or not a leak has occurred in the water pipe network and an operating method thereof, an object of the present invention is to support an administrator to more quickly check whether a water leak has occurred in the water pipe network.

A water leak monitoring device for monitoring whether water leaks in the water pipe network using k (k is a natural number of 3 or more) water leak detection sensors distributed and installed in the water pipe network according to an embodiment of the present invention detects the k water leaks A sensor identification unit for receiving a sensing value from each of the sensors and identifying a water leak detection sensor that has transmitted a sensing value belonging to a preset outlier range among the k water leak detection sensors, the outlier range among the k water leak detection sensors By assigning a component of 1 to the leak detection sensor that has transmitted a sensing value belonging to When the detection vector generator and the k-dimensional detection vector are generated, the Manhattan norm is calculated by calculating a Manhattan Norm of the k-dimensional detection vector, and then it is checked whether the Manhattan norm exceeds a preset threshold, so that the Manhattan norm is the threshold. If it is confirmed that exceeds, it includes a determination unit that determines that a leak has occurred in the water pipe network.

In addition, the operation method of the water leak monitoring device for monitoring whether water leakage in the water pipe network by utilizing k (k is a natural number of 3 or more) water leak detection sensors distributed and installed in the water pipe network according to an embodiment of the present invention is Receiving a sensing value from each of the k water leak detection sensors, and identifying a water leak detection sensor that has transmitted a sensing value belonging to a preset outlier range among the k water leak detection sensors, among the k water leak detection sensors By allocating a component of 1 to the leak detection sensor that has transmitted the sensing value belonging to the outlier range, and assigning a component of 0 to the leak detection sensor that does not transmit the sensing value belonging to the outlier range, a k-dimensional detection vector and when the k-dimensional detection vector is generated, after calculating the Manhattan norm of the k-dimensional detection vector, it is checked whether the Manhattan norm exceeds a preset threshold, so that the Manhattan norm exceeds the threshold If it is confirmed, it includes the step of determining that a leak has occurred in the water pipe network.

The present invention receives a sensing value from leak detection sensors distributed and installed in a water pipe network, identifies a leak detection sensor that transmits a sensing value belonging to a predetermined outlier range among the leak detection sensors, and based on the identification result By presenting a leak monitoring apparatus capable of determining whether a leak has occurred in the water pipe network and an operating method thereof, it is possible to support an administrator to more quickly check whether a water leak has occurred in the water pipe network.

1 is a diagram showing the structure of a water leak monitoring device according to an embodiment of the present invention.
2 is a view for explaining the operation of the water leak monitoring device according to an embodiment of the present invention.
3 is a flowchart illustrating a method of operating a water leak monitoring device according to an embodiment of the present invention.

Hereinafter, embodiments according to the present invention will be described in detail with reference to the accompanying drawings. These descriptions are not intended to limit the present invention to specific embodiments, and should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention. While describing each drawing, like reference numerals are used for similar components, and unless otherwise defined, all terms used in this specification, including technical or scientific terms, refer to those of ordinary skill in the art to which the present invention belongs. It has the same meaning as is commonly understood by those who have it.

In this document, when a part "includes" a certain component, it means that other components may be further included, rather than excluding other components, unless otherwise stated. In addition, in various embodiments of the present invention, each of the components, functional blocks or means may be composed of one or more sub-components, and the electrical, electronic, and mechanical functions performed by each component are electronic. A circuit, an integrated circuit, an ASIC (Application Specific Integrated Circuit), etc. may be implemented as various well-known devices or mechanical elements, and may be implemented separately or two or more may be integrated into one.

On the other hand, the blocks in the accompanying block diagram or steps in the flowchart are computer program instructions that are loaded in a processor or memory of equipment capable of data processing, such as a general-purpose computer, a special-purpose computer, a portable notebook computer, and a network computer, and perform specified functions. can be interpreted as meaning Since these computer program instructions may be stored in a memory provided in a computer device or in a memory readable by a computer, the functions described in the blocks of the block diagrams or the steps of the flowcharts are produced as articles of manufacture containing instruction means for performing the same. it might be In addition, each block or each step may represent a module, segment, or portion of code comprising one or more executable instructions for executing the specified logical function(s). It should also be noted that, in some alternative embodiments, it is also possible for the functions recited in blocks or steps to be executed out of the prescribed order. For example, two blocks or steps shown one after another may be performed substantially simultaneously or in the reverse order, and in some cases, some blocks or steps may be omitted.

1 is a diagram showing the structure of a water leak monitoring device according to an embodiment of the present invention.

Referring to Figure 1, the water leak monitoring device 110 according to the present invention utilizes k (k is a natural number of 3 or more) water leak detection sensors distributed and installed in the water pipe network to monitor whether there is a water leak in the water pipe network. The device includes a sensor identification unit 111 , a detection vector generation unit 112 , and a determination unit 113 .

The sensor identification unit 111 receives a sensing value from each of the k water leak detection sensors, and identifies a water leak detection sensor that has transmitted a sensing value belonging to a preset outlier range among the k water leak detection sensors.

The detection vector generator 112 allocates a component of 1 to the leak detection sensor that has transmitted the sensing value belonging to the outlier range among the k leak detection sensors, and does not transmit the sensing value belonging to the outlier range. By assigning a component of 0 to the detection sensor, a k-dimensional detection vector is generated.

When the k-dimensional detection vector is generated, the determination unit 113 calculates a Manhattan Norm of the k-dimensional detection vector and checks whether the Manhattan norm exceeds a preset threshold, so that the Manhattan norm is the If it is confirmed that the threshold is exceeded, it is determined that a leak has occurred in the water pipe network.

Here, the Manhattan norm is an L1 norm indicating the size of a vector or matrix, and may be calculated according to Equation 1 below.

은 맨해튼 노름을 의미하고, x_i는 벡터나 행렬에 포함되어 있는 i번째 성분을 의미한다.In Equation 1 above

denotes the Manhattan norm, and x _i denotes the i-th component included in a vector or matrix.

For example, it is said that there are a total of 10 leak detection sensors distributed in the water pipe network as 'leakage detection sensors 1, 2, 3, 4, 5, 6, 7, 8, 9 10', and the sensor identification unit 111 ), when 'water leak detection sensors 1, 3, 5, 6' are identified as the leak detection sensors that have transmitted the sensing values belonging to the outlier range among the 10 leak detection sensors, the detection vector generation unit 112 is 10 A component of 1 is assigned to 'Leak Detection Sensor 1, 3, 5, and 6' among the leak detection sensors, and a component of 0 is assigned to the remaining 'Leak Detection Sensors 2, 4, 7, 8, 9, 10'. By assigning, it is possible to generate a 10-dimensional sense vector called '[1 0 1 0 1 1 0 0 0 0]'.

Then, the determination unit 113 calculates the Manhattan norm of the 10-dimensional detection vector called '[1 0 1 0 1 1 0 0 0 0]' as '4', and then the Manhattan norm '4' is If it is checked whether the preset threshold value is exceeded and it is confirmed that the Manhattan gambling '4' exceeds the threshold value, it may be determined that a leak has occurred in the water pipe network.

In this regard, if the threshold value is '3', the determination unit 113 determines that the Manhattan norm '4' exceeds the threshold value '3' and determines that a leak has occurred in the water pipe network. can

At this time, according to an embodiment of the present invention, the water leak monitoring apparatus 110 may further include a first table holding unit 114 and a second table holding unit 115 .

The first table holding unit 114 stores and maintains a first table in which the monthly upper limit correction value and the monthly lower limit correction value set differently for each month are recorded.

For example, information may be recorded in the first table as shown in Table 1 below.

month Monthly upper limit correction Monthly lower limit correction January 0.8 0.9 February 1.1 One In March 0.9 1.2 ... ... ... December 1.2 0.7

The second table holding unit 115 stores and maintains a second table in which an upper limit correction value for each time period and a lower limit correction value for each time period that are set differently for each of a plurality of preset time periods are recorded.

For example, information may be recorded in the second table as shown in Table 2 below.

slot Upper limit correction value by time period Lower limit correction by time 0 o'clock to 6 o'clock One 1.1 6 o'clock to 12 o'clock 0.8 1.2 12 o'clock to 18 o'clock 1.1 0.8 18:00 - 24:00 1.2 0.7

At this time, the sensor identification unit 111 receives time information of the current time from a preset time information server, checks the month and time zone corresponding to the current time from the time information of the current time, and then checks the current time from the first table. Extracting the first monthly upper limit correction value and the first monthly lower limit correction value for the month corresponding to Then, the upper limit value constituting the outlier range is multiplied by the first monthly upper limit correction value and the first time period upper limit correction value, and the lower limit value constituting the outlier range is multiplied by the first monthly lower limit correction value and the first lower limit correction value for each time period After performing correction on the outlier range by multiplying by , a leak detection sensor that transmits a sensing value belonging to the corrected outlier range among the k leak detection sensors may be identified.

For example, as a result of checking the time information of the current time received from the time information server, if the month corresponding to the current time is 'February' and the time zone corresponding to the current time is '6:00 to 12:00', The sensor identification unit 111 extracts '1.1' and '1' as the first monthly upper limit correction value and the first monthly lower limit correction value corresponding to 'February' from the first table as in Table 1, respectively, and the table 2, '0.8' and '1.2' may be extracted as the upper limit correction value for each first time period and the lower limit correction value for each first time period corresponding to '6 o'clock to 12:00' from the second table, respectively.

Then, the sensor identification unit 111 multiplies the upper limit value constituting the outlier range by '1.1', which is the first monthly upper limit correction value, and '0.8', which is the first time period upper limit correction value, to configure the outlier range The outlier range may be corrected by multiplying the lower limit value by '1', which is the first monthly lower limit correction value, and '1.2', which is the first lower limit correction value for each time period.

Thereafter, the sensor identification unit 111 may identify a water leak detection sensor that has transmitted a sensing value belonging to the outlier range for which correction is performed among the k water leak detection sensors.

That is, in the water leak monitoring device 110 according to the present invention, the usage or pattern of water may vary by month and by time period, so that the sensing values measured by the water leak detection sensors may slightly differ by month and by time, month and After analyzing the characteristics of the sensed values measured by the leak detection sensors according to the time period, by setting the predetermined upper and lower limit correction values as shown in Table 1 and Table 2 according to the month and time zone, when determining whether water leakage, Correction of the outlier may be performed according to the month and time of the current time at which the determination of whether leakage is performed. For this reason, the water leak monitoring apparatus 110 according to the present invention can calculate a more accurate water leak determination result in consideration of the month and time.

According to an embodiment of the present invention, the water leak monitoring device 110 may further include an information table maintenance unit 116 , a branch point extraction unit 117 , and a location determination unit 118 .

The information table maintaining unit 116 stores and maintains an information table in which information on at least one branch point previously designated as corresponding to each of the k water leak detection sensors is recorded.

Here, at least one branch point corresponding to each of the k water leak detection sensors is among the n (n is a natural number greater than or equal to 3) branch points where a water pipe and a water pipe meet, constituting the water pipe network, the k It means a branch point designated to be located adjacent to each of the leak detection sensors.

For example, if k is 3 and n is 4, the water pipe network is 4 junctions 131, 132, 133, 134, junction 1 (131), junction 2, as shown in the figure shown in FIG. (132), branch point 3 (133), may be composed of branch point 4 (134), the water pipe network is three water leak detection sensors (101, 102, 103), water leak detection sensor 1 (101), leak detection Sensor 2 (102), the leak detection sensor 3 (103) may be provided.

At this time, water pipe 1 (141), water pipe 2 (142), and water pipe 3 (143) may meet at junction 1 (131), and at junction 2 (132), water pipe 3 (143), water pipe 4 (144), and water pipe 5 (145) may meet, at junction 3 (133), water pipe 5 (145), water pipe 6 (146), and water pipe 7 (147) may meet, and at junction 4 (134), water pipe 4 (144) and water pipe 8 (148) can meet.

In this situation, information may be recorded in the information table as shown in Table 3 below.

3 leak detection sensors 4 junctions Leak Detection Sensor 1 (101) Junction 1 (131) Leak Detection Sensor 2 (102) Junction 2 (132), Junction 4 (134) Leak Detection Sensor 3 (103) Junction 3 (133)

When it is determined by the determination unit 113 that a leak has occurred in the water pipe network, the branch point extraction unit 117 corresponds to each of the leak detection sensors that have transmitted a sensing value belonging to the outlier range among the k water leak detection sensors. By extracting all of the at least one branch point, a plurality of branch points for determining the location of a leak are extracted among the n branch points constituting the water pipe network.

In addition, when the plurality of branch points are extracted, the location determination unit 118 determines that a leak has occurred in a plurality of water pipes connected to the plurality of branch points in the water pipe network.

For example, when it is assumed that the water pipe network is configured as shown in the figure shown in FIG. 2 , the branch point extraction unit 117 determines that a water leak has occurred in the water pipe network by the determination unit 113, three leak detection sensors Among the 101, 102, and 103, at least one branch point corresponding to each of the leak detection sensors that transmits the sensing value belonging to the outlier range may be all extracted.

In this regard, when the water leak detection sensor that transmits the sensing value belonging to the outlier range among the three water leak detection sensors 101, 102, 103 is the water leak detection sensor 2 102 and the water leak detection sensor 3 103, The branch point extraction unit 117 extracts the branch point 2 132 and branch point 4 134, which are at least one branch point corresponding to the water leak detection sensor 2 102, from the information table as shown in Table 3, and the water leak detection sensor 3 ( By extracting all of the branch points 3 (133), which are at least one branch point corresponding to 103), branch point 2 (132), branch point 3 (133), branch point 4 (134), which are a plurality of branch points for determining the leak location, can be extracted there is.

In this way, when the plurality of branch points are extracted as branch point 2 (132), branch point 3 (133), and branch point 4 (134) by the branch point extraction unit 117, the position determination unit 118 is Water pipe 3 (143), water pipe 4 (144), water pipe 5 (145), water pipe 6 which are a plurality of water pipes connected to the plurality of junctions, junction 2 (132), junction 3 (133), and junction 4 (134). (146), water pipe 7 (147), water pipe 8 (148) can be determined that the leak has occurred.

In this case, according to an embodiment of the present invention, the leak monitoring apparatus 110 may further include a map data storage unit 119 and a map display unit 120 .

The map data storage unit 119 stores data on a water pipe network map that visually expresses the water pipe network.

For example, the map data storage unit 119 may store data for a water pipe network map that visually expresses the water pipe network, as shown in the figure shown in FIG. 2 .

When it is determined that a leak has occurred in the plurality of water pipes through the location determination unit 118 , the map display unit 120 may display the water based on the data for the water pipe network map stored in the map data storage unit 119 . The pipe network map is displayed on the screen, and the background color of the plurality of water pipes in the water pipe network map is applied and displayed as a preset first color for notifying that a leak has occurred.

In relation to this, the operation of the map display unit 120 will be described with reference to the figure shown in FIG. 2 .

First, it is assumed that the first color is 'orange'. At this time, through the position determination unit 118, water pipe 3 (143), water pipe 4 (144), water pipe 5 (145), water pipe 6 (146), water pipe 7 (147), water pipe 8 (148), it is determined that water leakage has occurred. When it is determined, the map display unit 120 displays the water pipe network map on the screen 200 based on the data for the water pipe network map stored in the map data storage unit 119 as shown in FIG. 2 . However, in the water pipe network map, the background color of water pipe 3 (143), water pipe 4 (144), water pipe 5 (145), water pipe 6 (146), water pipe 7 (147), and water pipe 8 (148) was leaked. It can be displayed by applying the first color 'orange' to inform.

That is, the map display unit 120 applies the background color of the plurality of water pipes determined to have a leak as a specific color, so that the manager can more quickly check the plurality of water pipes determined to have a leak. .

3 is an operation method of a water leak monitoring device for monitoring whether water leaks in the water pipe network by using k (k is a natural number of 3 or more) water leak detection sensors distributed and installed in the water pipe network according to an embodiment of the present invention; is a flowchart showing

In step S310, a sensing value is received from each of the k water leak detection sensors, and a water leak detection sensor that has transmitted a sensing value belonging to a preset outlier range among the k water leak detection sensors is identified.

In step S320, a component of 1 is assigned to a leak detection sensor that has transmitted a sensing value belonging to the outlier range among the k water leak detection sensors, and a leak detection sensor that does not transmit a sensing value belonging to the outlier range By assigning a component of 0 to , a k-dimensional sense vector is generated.

In step S330, when the k-dimensional detection vector is generated, after calculating the Manhattan norm of the k-dimensional detection vector, it is checked whether the Manhattan norm exceeds a preset threshold, so that the Manhattan norm exceeds the threshold If confirmed, it is determined that a leak has occurred in the water pipe network.

At this time, according to an embodiment of the present invention, the operation method of the water leak monitoring device includes the steps of storing and maintaining a first table in which the monthly upper limit correction value and the monthly lower limit correction value set differently for each month are recorded and maintained and a plurality of preset time zones The method may further include storing and maintaining a second table in which an upper limit correction value for each time period and a lower limit correction value for each time period set differently for each of the values are recorded.

At this time, in step S310, the time information of the current time is received from the preset time information server, the month and time zone corresponding to the current time are checked from the time information of the current time, and then the first table corresponds to the current time. After extracting the first monthly upper limit correction value and the first monthly lower limit correction value for the month being The upper limit value constituting the outlier range is multiplied by the first monthly upper limit correction value and the first time period upper limit correction value, and the lower limit value constituting the outlier range is multiplied by the first monthly lower limit correction value and the first time period lower limit correction value After performing the correction on the outlier range, it is possible to identify a water leak detection sensor that transmits a sensing value belonging to the corrected outlier range among the k water leak detection sensors.

In addition, according to an embodiment of the present invention, the method of operation of the water leak monitoring device is at least one branch point (at least corresponding to each of the k water leak detection sensors that is pre-designated to correspond to each of the k water leak detection sensors. One branch point is a branch point designated to be located adjacent to each of the k water leak detection sensors in the water pipe network among n (n is a natural number greater than 3) branch points where a water pipe and a water pipe meet, constituting the water pipe network. ), when it is determined that a leak has occurred in the water pipe network through the step (S330) of storing and maintaining an information table in which information about the By extracting all of at least one branch point corresponding to each leak detection sensor that has transmitted , The method may further include determining that a leak has occurred in a plurality of water pipes connected to the plurality of branch points in the water pipe network.

At this time, according to an embodiment of the present invention, the method of operating the leak monitoring device includes the steps of maintaining a map data storage unit in which data for a water pipe network map visually expressing the water pipe network is stored, and in the plurality of water pipes When it is determined that a leak has occurred, the water pipe network map is displayed on the screen based on the data for the water pipe network map stored in the map data storage unit, and the background color of the plurality of water pipes in the water pipe network map is selected. The method may further include applying and displaying a preset first color to inform that a leak has occurred.

In the above, the operation method of the water leak monitoring device according to an embodiment of the present invention has been described with reference to FIG. 3 . Here, the operation method of the water leak monitoring apparatus according to an embodiment of the present invention may correspond to the configuration of the operation of the water leakage monitoring apparatus 110 described with reference to FIGS. 1 and 2 , and thus a more detailed description thereof will be omitted. decide to do

The operation method of the leak monitoring device according to an embodiment of the present invention may be implemented as a computer program stored in a storage medium for execution through combination with a computer.

In addition, the operating method of the leak monitoring apparatus according to an embodiment of the present invention may be implemented in the form of a program command that can be executed through various computer means and recorded in a computer readable medium. The computer-readable medium may include program instructions, data files, data structures, etc. alone or in combination. The program instructions recorded on the medium may be specially designed and configured for the present invention, or may be known and available to those skilled in the art of computer software. Examples of the computer-readable recording medium include magnetic media such as hard disks, floppy disks and magnetic tapes, optical media such as CD-ROMs and DVDs, and magnetic media such as floppy disks. - includes magneto-optical media, and hardware devices specially configured to store and execute program instructions, such as ROM, RAM, flash memory, and the like. Examples of program instructions include not only machine language codes such as those generated by a compiler, but also high-level language codes that can be executed by a computer using an interpreter or the like.

As described above, in the present invention, specific matters such as specific components, etc., and limited embodiments and drawings have been described, but these are only provided to help a more general understanding of the present invention, and the present invention is not limited to the above embodiments. , various modifications and variations are possible from these descriptions by those of ordinary skill in the art to which the present invention pertains.

Therefore, the spirit of the present invention should not be limited to the described embodiments, and not only the claims described below, but also all of the claims and all equivalents or equivalent modifications to the claims will be said to belong to the scope of the spirit of the present invention. .

110: leak monitoring device
111: sensor identification unit 112: detection vector generation unit
113: determination unit 114: first table holding unit
115: second table holding unit 116: information table holding unit
117: branch point extraction unit 118: position determination unit
119: map data storage unit 120: map display unit

Claims (10)

In the water leak monitoring device for monitoring water leakage in the water pipe network by using k (k is a natural number of 3 or more) water leak detection sensors distributed and installed in the water pipe network,
a sensor identification unit that receives a sensing value from each of the k water leak detection sensors and identifies a water leak detection sensor that transmits a sensing value belonging to a preset outlier range among the k water leak detection sensors;
A component of 1 is assigned to a leak detection sensor that has transmitted a sensing value belonging to the outlier range among the k water leak detection sensors, and a component of 0 is assigned to a leak detection sensor that does not transmit a sensing value belonging to the outlier range a detection vector generator generating a k-dimensional detection vector by assigning; and
When the k-dimensional detection vector is generated, after calculating a Manhattan Norm of the k-dimensional detection vector, it is checked whether the Manhattan norm exceeds a preset threshold, and confirming that the Manhattan norm exceeds the threshold If it is, a determination unit that determines that a leak has occurred in the water pipe network
A leak monitoring device comprising a. According to claim 1,
a first table holding unit for storing and maintaining a first table in which a monthly upper limit correction value and a monthly lower limit correction value set differently for each month are recorded; and
A second table holding unit for storing and maintaining a second table in which the upper limit correction value for each time period and the lower limit correction value for each time period set differently for each of a plurality of preset time periods are recorded
further comprising,
The sensor identification unit
After receiving the time information of the current time from the preset time information server, checking the month and time zone corresponding to the current time from the time information of the current time, the first month for the month corresponding to the current time from the first table After extracting the upper limit correction value and the first monthly lower limit correction value, and extracting the first upper limit correction value for each time period and the first lower limit correction value for each first time period for the time zone corresponding to the current time from the second table, the upper limit value constituting the outlier range is multiplied by the first monthly upper limit correction value and the first time period upper limit correction value, and the lower limit value constituting the outlier range is multiplied by the first monthly lower limit correction value and the first time period lower limit correction value to correct the outlier range After performing, a water leak monitoring device for identifying a water leak detection sensor that has transmitted a sensing value belonging to the outlier range for which correction is performed among the k water leak detection sensors. According to claim 1,
At least one branch pre-designated to correspond to each of the k water leak detection sensors - At least one branch point corresponding to each of the k water leak detection sensors is n (n) where a water pipe and a water pipe meet, constituting the water pipe network is a branch point designated to be located adjacent to each of the k water leak detection sensors in the water pipe network among the three or more) branch points ;
When it is determined by the determination unit that a leak has occurred in the water pipe network, by extracting all of the at least one branch point corresponding to each of the water leak detection sensors that have transmitted the sensing value belonging to the outlier range among the k water leak detection sensors, a branch point extraction unit for extracting a plurality of branch points for determining a leak location among n branch points constituting the water pipe network; and
When the plurality of branch points are extracted, a position determination unit that determines that water leakage has occurred in a plurality of water pipes connected to the plurality of branch points in the water pipe network
A leak monitoring device further comprising a. 4. The method of claim 3,
a map data storage unit in which data for a water pipe network map visually expressing the water pipe network is stored; and
When it is determined that a leak has occurred in the plurality of water pipes through the location determination unit, the water pipe network map is displayed on the screen based on the data for the water pipe network map stored in the map data storage unit, A map display unit for displaying the background color of the plurality of water pipes in a pipe network map by applying a preset first color to notify that a leak has occurred
A leak monitoring device further comprising a. In the method of operating a water leak monitoring device for monitoring whether water leaks in the water pipe network by using k (k is a natural number of 3 or more) water leak detection sensors distributed and installed in the water pipe network,
Receiving a sensing value from each of the k water leak detection sensors, identifying a water leak detection sensor that has transmitted a sensing value belonging to a preset outlier range among the k water leak detection sensors;
A component of 1 is assigned to a leak detection sensor that has transmitted a sensing value belonging to the outlier range among the k water leak detection sensors, and a component of 0 is assigned to a leak detection sensor that does not transmit a sensing value belonging to the outlier range by assigning, generating a k-dimensional sense vector; and
When the k-dimensional detection vector is generated, after calculating a Manhattan Norm of the k-dimensional detection vector, it is checked whether the Manhattan norm exceeds a preset threshold, and confirming that the Manhattan norm exceeds the threshold If it is, determining that a leak has occurred in the water pipe network
Method of operation of a leak monitoring device comprising a. 6. The method of claim 5,
storing and maintaining a first table in which a monthly upper limit correction value and a monthly lower limit correction value set differently for each month are recorded; and
Storing and maintaining a second table in which the upper limit correction value for each time zone and the lower limit correction value for each time zone are recorded differently for each of a plurality of preset time zones
further comprising,
The step of identifying
After receiving the time information of the current time from the preset time information server, checking the month and time zone corresponding to the current time from the time information of the current time, the first month for the month corresponding to the current time from the first table After extracting the upper limit correction value and the first monthly lower limit correction value, and extracting the first upper limit correction value for each time period and the first lower limit correction value for each first time period for the time zone corresponding to the current time from the second table, the upper limit value constituting the outlier range is multiplied by the first monthly upper limit correction value and the first time period upper limit correction value, and the lower limit value constituting the outlier range is multiplied by the first monthly lower limit correction value and the first time period lower limit correction value to correct the outlier range After performing, the method of operating a water leak monitoring device for identifying a water leak detection sensor that has transmitted a sensing value belonging to the range of the outlier in which the correction is performed among the k water leak detection sensors. 6. The method of claim 5,
At least one branch pre-designated to correspond to each of the k water leak detection sensors - At least one branch point corresponding to each of the k water leak detection sensors is n (n) where a water pipe and a water pipe meet, constituting the water pipe network is a natural number of 3 or more) a branch point designated to be located adjacent to each of the k water leak detection sensors in the water pipe network among branch points - storing and maintaining an information table in which information about is recorded;
When it is determined that a leak has occurred in the water pipe network through the determining step, at least one branch point corresponding to each of the leak detection sensors that has transmitted a sensing value belonging to the outlier range among the k water leak detection sensors is extracted. By doing so, extracting a plurality of branch points for determining a leak location among n branch points constituting the water pipe network; and
When the plurality of branch points are extracted, determining that a leak has occurred in a plurality of water pipes connected to the plurality of branch points in the water pipe network
Operation method of the leak monitoring device further comprising a. 8. The method of claim 7,
maintaining a map data storage unit in which data for a water pipe network map visually expressing the water pipe network is stored; and
When it is determined that a leak has occurred in the plurality of water pipes, the water pipe network map is displayed on the screen based on the data on the water pipe network map stored in the map data storage unit, and the plurality of water pipe network maps are Applying and displaying the background color of the water pipes of
Operation method of the leak monitoring device further comprising a. A computer-readable recording medium recording a computer program for executing the method of any one of claims 5 to 8 through combination with a computer. A computer program stored in a storage medium for executing the method of any one of claims 5 to 8 through combination with a computer.

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