KR101953035B1 - Monitoring apparatus and method for pipe line state - Google Patents

Abstract

Provided is an apparatus for monitoring the status of a pipe. The apparatus for monitoring the status of a pipe comprises: a communicating unit which receives measurement data from a plurality of text boxes; a memory which groups the plurality of test boxes depending on an installation area, and which stores a specific resistivity parameter and an average measurement value with respect to the installation area by each group; and a processor which calculates a normal status with respect to the each group according to the specific resistivity parameter and the average measurement value, and which detects the test boxes in a section where oiling is suspected by comparing the calculated normal status and the measurement data of each of the plurality of test boxes.

Description

Technical Field [0001] The present invention relates to a monitoring apparatus,

The following embodiments relate to a piping condition monitoring apparatus and method.

Among the piping facilities, pipelines represent pipelines transporting oil, gasoline, diesel, kerosene, and aviation oil within a range of several tens of kilometers or hundreds of kilometers. In case piping is corroded by oil pipeline, piping is damaged due to earthquake such as earthquake, and piping is damaged due to excavation of outside construction site, etc., Leaks may occur due to malicious damage to the piping.

Specifically, when an arc welding is performed to oil the oil flowing along the pipe, or another facility is attached, an abnormal electric signal can be measured in the oil pipeline. By analyzing the above abnormal electrical signal in advance, it is possible to prevent illegal activities and regularly repair the condition of the pipeline.

Korean Patent No. 10-0954605 is an invention relating to a ubiquitous-based piping facility status monitoring system. More specifically, the present invention provides a diagnostic program for detecting damage to piping or whether piping contents are taken out through a vibration sensor and a seismometer installed on a piping facility.

According to one aspect, a piping condition monitoring device is provided. The pipeline condition monitoring apparatus includes a communication unit for receiving measurement data from a plurality of test boxes, a memory for grouping the plurality of test boxes according to installation areas, and storing a resistivity parameter and an average measurement value for the installation area for each group And calculating a steady state for each group according to the resistivity parameter and the average measured value, comparing the calculated steady state with measurement data of each of the plurality of test boxes, and detecting a test box of the probable duration Processor.

According to one embodiment, the communication unit receives the current value and the voltage value as the measurement data, and the processor compares the measurement data with the current direction and voltage magnitude of the steady state to detect the test box of the probation period . In addition, the current value and the voltage value may be data measured from a pipe in which each of the plurality of test boxes is contacted.

According to another embodiment, the processor may detect a first test box having a different current direction from a plurality of test boxes belonging to the same group, as a test box of the suspect section.

According to yet another embodiment, the processor may include a first test box in which a voltage peak value exceeding the steady voltage range of the group is included in the measurement data and the slope of the voltage peak value is greater than or equal to a normal threshold, Can be detected.

According to another embodiment, the memory may store a specific resistance parameter determined according to at least one of soil, moisture content and temperature for each of the installation areas and an average measurement of each group for a predetermined time.

According to another aspect, a method of monitoring a piping condition is provided. The method comprising the steps of: receiving measurement data from a plurality of test boxes; confirming from the predefined database a specific parameter of each group to which the plurality of test boxes belong and an average measurement value for a predetermined time; Calculating a steady state for each group according to the parameter and the average measurement value, and comparing the calculated steady state and measurement data of each of the plurality of test boxes to detect a test box of the probable duration .

According to an embodiment, the step of receiving the measurement data may include receiving a measured current value and a voltage value from the pipeline in contact with each of the plurality of test boxes, and detecting a test box of the probabilistic section The step may include comparing the measurement data with the current direction and voltage magnitude of the steady state.

According to another embodiment, the step of detecting the test box of the probation section includes detecting a plurality of test boxes belonging to the same group and a first test box having a different current direction as test boxes of the probation section can do.

According to another embodiment, the step of detecting the test box of the probing section may include detecting a test box having a voltage peak value exceeding a steady voltage range of the group, the first peak voltage value being included in the measurement data and the slope of the voltage peak value being not less than a normal threshold value And detecting the test box as a test box of an armed suspect section.

1 is an exemplary diagram illustrating a plurality of test boxes communicating with a designated server in accordance with one embodiment.
FIG. 2 is an enlarged view of a first group of a plurality of test boxes illustrated in FIG. 1. FIG.
3 is a block diagram of a piping condition monitoring apparatus according to one embodiment.
Figures 4A-4C are graphs of measurement data received by the piping condition monitoring device in accordance with one embodiment.
5 is a flowchart showing a piping condition monitoring method according to another embodiment.

Specific structural or functional descriptions of embodiments are set forth for illustration purposes only and may be embodied with various changes and modifications. Accordingly, the embodiments are not intended to be limited to the specific forms disclosed, and the scope of the disclosure includes changes, equivalents, or alternatives included in the technical idea.

The terms first or second, etc. may be used to describe various elements, but such terms should be interpreted solely for the purpose of distinguishing one element from another. For example, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component.

It is to be understood that when an element is referred to as being "connected" to another element, it may be directly connected or connected to the other element, although other elements may be present in between.

The singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, the terms "comprises ", or" having ", and the like, are used to specify one or more of the features, numbers, steps, operations, elements, But do not preclude the presence or addition of steps, operations, elements, parts, or combinations thereof.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the meaning of the context in the relevant art and, unless explicitly defined herein, are to be interpreted as ideal or overly formal Do not.

Hereinafter, embodiments will be described in detail with reference to the accompanying drawings. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the following description of the present invention with reference to the accompanying drawings, the same components are denoted by the same reference numerals regardless of the reference numerals, and a duplicate description thereof will be omitted.

Arc discharge can be a phenomenon in which a current equal to or greater than a threshold value flows between electrodes through a gas between two electrodes (for example, a pipe and a welding electrode). Specifically, a user can generate an electric current through a non-conductive medium such as air, and perform arc discharge by causing thermal ion emission of electrons from an electrode supporting an arc.

Electric arc welding shows the process of melting metal by using strong heat energy generated by arc discharge. Specifically, when power is connected to each of the welding base material and the welding rod, an arc is generated between the surface of the welding base material and the welding rod, and the base material is bonded.

If the above electric arc welding is performed on the pipe, an abnormal electrical signal will be measured from the pipe. Hereinafter, various embodiments of a server for detecting an armed suspect section using measurement data received from a plurality of test boxes provided in a pipeline will be described in detail.

1 is an exemplary diagram illustrating a plurality of test boxes communicating with a designated server in accordance with one embodiment. Referring to FIG. 1, a plurality of test boxes 111, 112, 113, 114, 121, 122, 123, 131, 132, 133 installed along a pipe are shown. In the following description, a test box represents a facility installed to monitor the status of piping remotely from a central server. Specifically, the test box may include a communication module for communicating with a remote server, an ammeter for measuring the current value flowing along the pipe, and a voltmeter for measuring the potential difference of the pipe to the standard voltage.

A plurality of test boxes 111, 112, 113, 114, 121, 122, 123, 131, 132, 133 provided in the piping may be grouped into a plurality of groups, respectively. More specifically, the plurality of test boxes 111, 112, 113, 114, 121, 122, 123, 131, 132, and 133 may be grouped according to the installed area. For example, the first test box 111 to the fourth test box 114 are grouped in the first group 110 according to the area where the piping is disposed. The fifth test box 121 to the seventh test box 123 are grouped in the second group 120 and the eighth test box 131 to the tenth test box 133 are grouped in the third group 130. [ Can be grouped. For example, the first group 110 may be a test box installed in a piping covering the horseracing section, and the second group 120 may be a test box installed in a piping covering a large section in Ulsan. In addition, the third group 130 may represent a test box installed in a pipe covering the Cheonan section in the competition. The grouping method of the plurality of test boxes 111, 112, 113, 114, 121, 122, 123, 131, 132, and 133 described above is an exemplary description only for the sake of understanding, It should not be. In the present embodiment, 10 test boxes are arranged along the piping, but this should not be construed as limiting or limiting other embodiments. For example, 50 test boxes or 100 test boxes may be installed in a pipe covering a specific area.

As shown in Fig. 1, a plurality of rectifiers (for example, a first rectifier, a second rectifier and a third rectifier) may be installed in the piping at predetermined intervals. Each of the plurality of rectifiers may supply the designated charge to the piping. In one embodiment, the negative cable of the output cable of each of the plurality of rectifiers may be connected to the piping. Thus, even if a positive charge is supplied from the land to the pipe, the corrosion current formed on the metal surface can be lost due to the influence of the negative charge supplied by the plurality of rectifiers. Each of the first rectifier, the second rectifier and the third rectifier can minimize the corrosion phenomenon which may be caused by the influence of moisture and oxygen in the soil. An embodiment in which three rectifiers are arranged along the pipe as in the previously described embodiment is shown, but this should not be construed as limiting or limiting other embodiments. Depending on the needs of the specialist in the field of technology, a pipe covering a specific area may have 10 rectifiers or 100 rectifiers installed.

FIG. 2 is an enlarged view of a first group of a plurality of test boxes illustrated in FIG. 1. FIG. Referring to FIG. 2, the area in which the test boxes of the first group 110 described in FIG. 1 are installed is shown in more detail. A plurality of test boxes 111, 112, 113, and 114 may be installed in the pipe corresponding to the first group 110 together with the first rectifier 140.

The plurality of test boxes 111, 112, 113, and 114 transmit measurement data to a predetermined server. More specifically, the measurement data may indicate a current value and a voltage value for a pipe in which a plurality of test boxes 111, 112, 113, and 114 are installed. The server may calculate the steady state of the current value and the voltage value for each region using a database stored in the memory. In the following description, the steady state of the pipe indicates a state where there is no abnormal electrical contact to the pipe, and no other load is connected. More specifically, the server can calculate the normal size of the piping voltage drop for each region using Equation (1) below.

In Equation (1), U _L (volt) represents a piping voltage drop value, and I (A) represents a load current flowing along a pipe. Also, R _L (?) Can represent the pipe resistance.

More specifically, when arc welding is performed on the pipe, R _L can be calculated in consideration of the inherent resistance ρ of the pipe circumference, the pipe cross-sectional area A, the pipe conductivity y, and the welder efficiency η. As described above, the resistivity p can exhibit a value determined according to the influence of the surrounding environment of the pipe.

Referring to FIG. 2, a first group 110 in which a plurality of test boxes 111, 112, 113 and 114 are installed is divided into a first group 110 by a river 150 flowing along the oil pipeline and a land 160 having a high moisture content, The resistance p can be determined. The server according to this embodiment can store at least one of soil, water content, and temperature, which determine the resistivity p, as a resistivity parameter. More specifically, the server may map and store the resistivity parameter and the average measured value for a predetermined time for each of the installation areas where the plurality of test boxes 111, 112, 113, and 114 are installed. The server of this embodiment can calculate the steady state value for each group using the resistivity parameters and the average measured values stored in the database.

The server can calculate a steady state in consideration of an installation environment such as a soil or a river instead of applying uniform criteria to measurement values received from a plurality of test boxes. Accordingly, the server can define a steady state according to an actual installation area, and an effect of detecting an abnormal state of the pipe more accurately can be expected. Hereinafter, the configuration of the server according to the present embodiment and the process of calculating the steady state by the server will be described in detail.

3 is a block diagram of a piping condition monitoring apparatus according to one embodiment. Referring to FIG. 3, the piping condition monitoring apparatus 300 may include a communication unit 310, a memory 320, and a processor 330. The communication unit 310 can receive measurement data from a plurality of test boxes. The plurality of test boxes are installed in different areas and contact the piping. In addition, the plurality of test boxes can acquire measurement data indicating the piping condition of the installation area and transmit them to the communication unit 310. Illustratively, the communication unit 310 can receive the current value and the voltage value for the pipe as the measurement data.

The communication unit 310 can perform data communication with each of a plurality of test boxes provided at different positions through a predetermined communication interface. The communication interface may be a communication interface such as a WLAN (Wireless LAN), a WiFi (Wireless Fidelity) Direct, a DLNA (Digital Living Network Alliance), a Wibro (Wireless broadband), a Wimax (World Interoperability for Microwave Access), HSDPA A wireless Internet interface and a short range communication interface such as Bluetooth ™, Radio Frequency Identification (RFID), Infrared Data Association (IrDA), Ultra Wideband (UWB), ZigBee and Near Field Communication have. In addition, the communication interface may represent any interface (e.g., a wired interface) capable of communicating with the outside.

The memory 320 may group and store a plurality of test boxes according to an installation area. For example, memory 320 may group a plurality of test boxes associated with a first region into a first group and a plurality of test boxes associated with a second region into a second group. With the same principle, the memory 320 can group a plurality of test boxes associated with the Nth region into the Nth group.

Also, the memory 320 may map and store the resistivity parameter for the installation area and the average measurement value for a predetermined time, for each group. The average measured value may represent the average value of the current value and the voltage value measured by a plurality of test boxes in the same group for a predetermined time. The memory 320 may store and store a resistivity parameter determined according to at least one of soil, water content, and temperature corresponding to each of the installation areas in which the plurality of test boxes are installed, and an average measurement value of each group for a predetermined time .

Illustratively, the memory 320 may store the resistivity parameters for a plurality of test boxes belonging to the first group as shown in Table 1 below.

The first group (TB1 to TB150) Pipe resistance 0.17 ( _μΩm ) Coating resistance 100 ( _kΩFT ² ) Coating permeability 2.4 ( _μ0 ) Pipe metal permeability 300 ( _μ0 ) Soil resistivity 100 ( _Ωm )

을 가질 수 있다. 본 실시예에 따른 배관 상태 모니터링 장치(300)는 각각의 그룹에 대응하는 비저항 파라미터를 저장하여 그룹 별 정상 상태를 계산하는데 이용할 수 있다. 그에 따라, 종래와 같이 일괄적으로 정상 범위를 설정하는 방식에 비해 도유 의심 구간을 검출하는 정확도와 신뢰도가 향상될 수 있다.In Table 1, TB1 to TB150 may indicate index values for identifying a plurality of test boxes included in the first group. In the above Table 1, μ0 is the vacuum permeability

Lt; / RTI > The piping condition monitoring apparatus 300 according to the present embodiment can be used to calculate the steady state for each group by storing the resistivity parameters corresponding to the respective groups. Accordingly, accuracy and reliability for detecting the suspect section can be improved as compared with the conventional method of collectively setting the normal range as in the conventional art.

In another embodiment, the communication unit 310 may receive the system temperature measurement values and the pipe temperature measurement values from the plurality of test boxes as measurement data. Each of the plurality of test boxes may include a temperature sensor for measuring an external temperature. The processor 330 may calculate the piping resistance temperature coefficient R _T based on the received measurement data. More specifically, the processor 330 may calculate the piping resistance temperature coefficient R _{T according} to Equation (2) below.

In the above equation (1), R _t represents a resistance value at a reference temperature,? Represents a resistance temperature coefficient corresponding to a pipe, and? T represents a temperature variation amount from the reference temperature. The processor 330 may calculate the attenuation ratio of the electrical signal passing through the piping based on the inherent resistance of the piping, the length of the piping, the cross-sectional area, the permeability, and the temperature of the piping.

The processor 330 may calculate the steady state for each of the groups using the resistivity parameters stored in the memory 320 and the average measurements. More specifically, the processor 330 may calculate the pipe voltage drop value corresponding to each of the abnormal state and the steady state by applying the resistivity parameters and the average measured value stored in Equation (1). In addition, the processor 330 can calculate the current direction of the corresponding pipe in each of the abnormal state and the steady state using the average measurement value.

The processor 330 may compare the steady state and the measurement data of each of the plurality of test boxes to detect a test box belonging to the suspect section. In one embodiment, the processor 330 may compare the current direction of the steady state with the measurement data for each group to detect the test box of the probing period. Specifically, there may be a case where a plurality of test boxes belonging to the first group according to the average measurement value indicate the current direction of the right side with respect to the rectifier. In this case, if some of the test boxes in the first group indicate the current direction of the left, the processor 330 recognizes that there is electrical contact in the piping in the installation area, Can be detected.

In another embodiment, the processor 330 may compare the measured voltage and the magnitude of the steady state voltage for each group to detect the test box of the suspect period. The voltage magnitude may represent a pipe voltage drop value calculated according to Equation (1). Processor 330 may determine whether a voltage peak value that exceeds a predefined nominal voltage range for each group is included in the measurement data. If a voltage peak value exceeding the normal voltage range is not included in the measurement data, the processor 330 may determine that the group is in a normal state. On the other hand, when a voltage peak value exceeding the normal voltage range is included in the measurement data, the processor 330 can check whether the slope of the voltage peak value exceeds the normal threshold value. The processor 330 may detect a first test box whose slope of the voltage peak value exceeds a normal threshold value as a test box of the suspect section. In another embodiment, the processor 330 may detect that current is leaking from other fixtures in the piping area where the first test box is installed, if the slope of the voltage peak value is below the normal threshold. For example, a leakage current may be introduced into the pipe through an underground facility such as a subway in the vicinity.

The piping condition monitoring apparatus 300 according to the present embodiment is capable of monitoring not only the magnitude of the voltage peak value itself but also the current flowing from the fixed facilities in the vicinity through the slope at which the voltage peak value is increasing, It is possible to judge whether or not there is an existence of a suspicious section. As described above, the arc discharge transfers a large amount of energy to the piping for a short time, resulting in a large current fluctuation. Therefore, the arc discharge will have a large difference in the amount of change over time rather than naturally occurring piping corrosion.

Also, if the detected suspect section is in the section where pipe maintenance work is scheduled, the users will know that the construction is underway in the installation area. However, if there is no pre-notified construction in the suspect section, the user can easily know that illegal electrical contact is currently taking place with respect to the piping of the installation area.

Figures 4A-4C are graphs of measurement data received by the piping condition monitoring device in accordance with one embodiment. Referring to Figures 4A-4C, there is shown a graph of measurement data received by the piping condition monitoring device from each group. In FIGS. 4A to 4C, the X-axis represents an index of a test box belonging to each group, and the Y-axis represents a voltage value (mV) measured by the test box.

FIG. 4A shows the voltage values obtained at the designated time points of the test boxes belonging to the first group. The first group includes the first test box TB1 to the 105th test box TB105. Similarly, FIG. 4B shows the voltage values obtained at the designated time points of the test boxes belonging to the second group. The second group includes the first test box TB1 to the 249th test box TB249. FIG. 4C shows the voltage values obtained at the designated time points of the test boxes belonging to the third group. The third group includes the first test box TB1 to the 178th test box TB178. As in the present embodiment, different numbers of test boxes may be grouped into each group. The number of test boxes to be grouped may be determined according to the length of the piping and the environment of the area. The number of test boxes installed in each group in the present embodiment is an exemplary description only for the sake of understanding and should not be construed as limiting or limiting other embodiments. A wide variety of test boxes may be assigned to each group depending on the choice of experts in the art.

The processor of the piping condition monitoring apparatus can calculate the steady voltage range corresponding to each group. Also, the piping condition monitoring apparatus may map the calculated normal voltage range to each group in a memory area and store the same. As shown in FIG. 4A, for the first group of test boxes, the voltage range of y ₁ or less and y ₂ or more may be set to the normal state. 4B and 4C, a voltage range of y ₃ or less and y ₄ or more is described as a steady state for the test boxes of the second group, and a voltage of y ₅ or less and y ₆ or more for the test boxes of the third group The range can be set to the normal state. The steady-state voltage ranges for each group may represent different ranges. More specifically, a resistivity parameter is determined according to a soil environment, a moisture environment, and a temperature environment in which a plurality of test boxes belonging to each group are installed, and different voltage ranges can be calculated as a steady state by the resistivity parameter.

Referring to FIG. 4A, two measurements 411, 412 are shown that exceed the steady state range. The piping condition monitoring apparatus can detect the test boxes obtained by obtaining the two measured values 411 and 412 as test boxes of the suspect section. There may be external interference, such as arc welding or subway current inflow, in the area where the test box obtained the two measured values 411, 412 is installed. Accordingly, the user can block the illegality behavior by examining the suspect period.

Similarly, referring to FIG. 4B, a measurement interval 420 that exceeds the steady state range is shown. The piping condition monitoring apparatus can detect the corresponding measurement section 420 as an arched suspicion section. Similarly, the user may visit the measurement interval 420 to investigate the cause of the measurement of the abnormal electrical signal and to prevent unauthorized access to the pipeline in advance.

Referring to FIG. 4C, a measured value 430 is shown that does not fall within the steady state range. The piping condition monitoring apparatus can detect the test box in which the measured value 430 is obtained as a test box of the suspect section. In another embodiment, a departure from normal range of the measured value 430 may result from failure of the test box or damage to the piping. The user can visit the relevant section to check the damage of the pipe and the test box.

The piping condition monitoring apparatus according to the present embodiment can detect measurement probabilities by comparing measurement data for each group. Since the resistivity parameters are different depending on the environment in which the piping is disposed, reference values for dividing the normal state and the abnormal state are applied differently. The piping condition monitoring apparatus according to the present embodiment can calculate the steady state for each group through the database implemented in the memory. Accordingly, the piping condition monitoring apparatus can detect the suspect section with higher accuracy and reliability than the conventional system.

5 is a flowchart showing a piping condition monitoring method according to another embodiment. Referring to FIG. 5, a method for monitoring a piping condition includes receiving measurement data from a plurality of test boxes (510), measuring a resistivity parameter of each group to which the plurality of test boxes belong, (530) computing a steady state for each of the groups according to the resistivity parameter and the average measurement, and determining a steady state for each of the plurality of test boxes (540) a test box of the probation period. Each of the steps described in FIG. 5 may be performed at a designated central server. The central server may communicate data with a plurality of test boxes in a predetermined communication manner and may be an apparatus for auditing an abnormal state of a pipe.

In step 510, the server may receive measurement data from a plurality of test boxes. The plurality of test boxes may be grouped into a plurality of different groups according to respective installation areas. In step 510, the server may receive the current value, the voltage value, and the pipe temperature value measured from the piping, from each of the plurality of test boxes.

In step 520, the server can check the resistivity parameters of each group to which the plurality of test boxes belong and a mean measurement value for a predetermined time from a predetermined database. The predetermined database may be stored in a memory space implemented in the server. In another embodiment, the predetermined database may be stored in a cloud server that is in data communication with the server.

In step 530, the server may calculate a steady state for each of the groups according to the resistivity parameters and the average measurements. More specifically, the server can calculate a steady voltage range corresponding to a steady state for each group. In addition, the server can calculate the current direction corresponding to the steady state for each group.

In step 540, the server compares the calculated steady state with the measurement data of each of the plurality of test boxes to detect a test box of the probable period. More specifically, the server may compare the measurement data with the current direction and voltage magnitude of the steady state. In one embodiment, the server may detect a first test box having a different current direction from a plurality of test boxes belonging to the same group, as a test box of the suspect section. In another embodiment, a first test box in which a voltage peak value exceeding a normal voltage range of the group is included in the measurement data and whose slope of the voltage peak value is equal to or higher than a normal threshold value may be detected as a test box of the suspect interval period .

The embodiments described above may be implemented in hardware components, software components, and / or a combination of hardware components and software components. For example, the devices, methods, and components described in the embodiments may be implemented within a computer system, such as, for example, a processor, a controller, an arithmetic logic unit (ALU), a digital signal processor, such as an array, a programmable logic unit (PLU), a microprocessor, or any other device capable of executing and responding to instructions. The processing device may execute an operating system (OS) and one or more software applications running on the operating system. The processing device may also access, store, manipulate, process, and generate data in response to execution of the software. For ease of understanding, the processing apparatus may be described as being used singly, but those skilled in the art will recognize that the processing apparatus may have a plurality of processing elements and / As shown in FIG. For example, the processing unit may comprise a plurality of processors or one processor and one controller. Other processing configurations are also possible, such as a parallel processor.

The software may include a computer program, code, instructions, or a combination of one or more of the foregoing, and may be configured to configure the processing device to operate as desired or to process it collectively or collectively Device can be commanded. The software and / or data may be in the form of any type of machine, component, physical device, virtual equipment, computer storage media, or device , Or may be permanently or temporarily embodied in a transmitted signal wave. The software may be distributed over a networked computer system and stored or executed in a distributed manner. The software and data may be stored on one or more computer readable recording media.

The method according to an embodiment 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, and the like, alone or in combination. Program instructions to be recorded on a computer-readable medium may be those specially designed and constructed for an embodiment or may be available to those skilled in the art of computer software. Examples of computer-readable media include magnetic media such as hard disks, floppy disks and magnetic tape; optical media such as CD-ROMs and DVDs; magnetic media such as floppy disks; Magneto-optical media, and hardware devices specifically configured to store and execute program instructions such as ROM, RAM, flash memory, and the like. Examples of program instructions include machine language code such as those produced by a compiler, as well as high-level language code that can be executed by a computer using an interpreter or the like. The hardware devices described above may be configured to operate as one or more software modules to perform the operations of the embodiments, and vice versa.

Although the embodiments have been described with reference to the drawings, various technical modifications and variations may be applied to those skilled in the art. For example, it is to be understood that the techniques described may be performed in a different order than the described methods, and / or that components of the described systems, structures, devices, circuits, Lt; / RTI > or equivalents, even if it is replaced or replaced.

Claims (9)

A communication unit for receiving measurement data from a plurality of test boxes;
A memory for grouping the plurality of test boxes according to installation areas and storing resistivity parameters and average measurement values for the installation areas for each group; And
A processor for calculating a steady state for each group according to the resistivity parameter and the average measurement value and for comparing the calculated steady state with measurement data of each of the plurality of test boxes,
Lt; / RTI >
Wherein the memory stores a resistivity parameter determined according to at least one of soil, moisture content and temperature for each of the installation areas and an average measurement of each group for a predetermined time,
Plumbing condition monitoring device.
The method according to claim 1,
Wherein the communication unit receives the current value and the voltage value as the measurement data, and the processor compares the measurement data with the current direction and voltage magnitude of the steady state to detect the test box of the probing period,
Wherein the current value and the voltage value are data measured from piping in contact with each of the plurality of test boxes.
3. The method of claim 2,
Wherein the processor detects a first test box having a different current direction from a plurality of test boxes belonging to the same group, as a test box of a suspect section.
A communication unit for receiving measurement data from a plurality of test boxes;
A memory for grouping the plurality of test boxes according to installation areas and storing resistivity parameters and average measurement values for the installation areas for each group; And
A processor for calculating a steady state for each group according to the resistivity parameter and the average measurement value and for comparing the calculated steady state with measurement data of each of the plurality of test boxes,
Lt; / RTI >
Wherein the communication unit receives the current value and the voltage value as the measurement data, and the processor compares the measurement data with the current direction and voltage magnitude of the steady state to detect the test box of the probing period,
Wherein the current value and the voltage value are data measured from a pipe in contact with each of the plurality of test boxes,
Wherein the processor detects a first test box having a voltage peak value exceeding the steady voltage range of the group in the measurement data and having a slope of the voltage peak value equal to or higher than a normal threshold value, as a test box of the suspect section.
delete Receiving measurement data from a plurality of test boxes;
Confirming from the predetermined database a specific resistance parameter of each group to which the plurality of test boxes belong and an average measurement value for a predetermined time;
Calculating a steady state for each group according to the resistivity parameter and the average measurement; And
Comparing the calculated steady state with measurement data of each of the plurality of test boxes, and detecting a test box of the probation period
Lt; / RTI >
Wherein receiving the measurement data comprises receiving a measured current value and a voltage value from the piping in contact with each of the plurality of test boxes,
Wherein the step of detecting the test box of the probing section includes comparing the measurement data with the current direction and voltage magnitude of the steady state,
Wherein the step of detecting a test box of the probing period includes detecting a first test box in which a voltage peak value exceeding a normal voltage range of the group is included in the measurement data and a slope of the voltage peak value is equal to or higher than a normal threshold value, Detecting with a test box
How to monitor the piping condition.
delete The method according to claim 6,
Wherein the step of detecting the test box of the probation section includes:
Detecting a first test box having a different current direction from a plurality of test boxes belonging to the same group as a test box of a suspect section;
Wherein the piping condition monitoring method comprises:
delete

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