KR101759201B1 - Sensing module for checking leakage of underground pipe - Google Patents

Sensing module for checking leakage of underground pipe Download PDF

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KR101759201B1
KR101759201B1 KR1020150147208A KR20150147208A KR101759201B1 KR 101759201 B1 KR101759201 B1 KR 101759201B1 KR 1020150147208 A KR1020150147208 A KR 1020150147208A KR 20150147208 A KR20150147208 A KR 20150147208A KR 101759201 B1 KR101759201 B1 KR 101759201B1
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sensing
unit
information
weight
pipeline
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KR1020150147208A
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Korean (ko)
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KR20170046950A (en
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안경수
조선남
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안경수
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H17/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves, not provided for in the preceding groups
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K13/00—Thermometers specially adapted for specific purposes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
    • G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
    • G01M3/2807—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes
    • G01M3/2815—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes using pressure measurements
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
    • G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
    • G01M3/2853—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipe joints or seals
    • G01M3/2861—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipe joints or seals for pipe sections by testing its exterior surface
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V15/00—Tags attached to, or associated with, an object, in order to enable detection of the object
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01W—METEOROLOGY
    • G01W1/00—Meteorology
    • G01W1/11—Weather houses or other ornaments for indicating humidity

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geophysics (AREA)
  • Engineering & Computer Science (AREA)
  • Atmospheric Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Ecology (AREA)
  • Environmental Sciences (AREA)
  • Examining Or Testing Airtightness (AREA)

Abstract

The present invention relates to a sensing module, and more particularly, to a plurality of sensing modules spaced at predetermined intervals along a channel embedded in the ground so as to be installed at one side of a channel or at a joint of a channel, A sensing unit configured to generate sensing information; And an RFID unit that is connected to the sensing unit and stores pipeline information of the pipeline that is a point where the sensing unit is installed and communicates with a reader on the ground so as to accurately recognize the position of the pipeline in case of leakage, The present invention relates to a sensing module for detecting a leakage of a buried pipe.

Figure R1020150147208

Description

TECHNICAL FIELD [0001] The present invention relates to a sensing module for detecting a leakage of a buried pipe,

The present invention relates to a sensing module, and more particularly, to a sensing module for detecting a leakage of a buried channel, which is installed in a buried channel and is configured to detect a leakage of a channel.

In the context of increasing unevenness of rainfall due to climate change and increasing population and water usage due to urbanization, the disparity of supply and demand is intensifying. Therefore, management of water supply network is one of the most basic and important matters in the management of tap water It is one.

In general, the water supply network accounts for about 70% of the water supply facilities, but the maintenance of the water supply network is inadequate. In Korea, the amount of water leakage during the process of supplying water is 640 million ㎥ (2.1 times that of Namkang dam in 2010), and the amount of water leaked in the last 10 years is 7.5 billion ㎥.

In addition, the reliability of tap water is deteriorating due to aging of pipe network and deterioration of water quality caused by improper supply system.

In addition, the management of leaks is essential for the network to be installed for the purpose of gas and oil supply, not only to reduce the loss but also to prevent major accidents.

In order to detect such leakage, a variety of techniques have been proposed in the past. In particular, in the case of a water pipe, a leakage sensor disclosed in Korean Patent Laid-Open No. 10-2007-0005234 has been proposed. However, Is installed to detect the leakage of the chemical by winding it on a pipe or the like. In this case, the installation cost and the construction period are excessively required to be applied to a wide range of waterworks pipe network, and it is difficult to precisely detect the leakage point This will remain.

Korean Patent Publication No. 10-2007-0005234

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and it is an object of the present invention to provide a leak detection method and a leak detection method capable of instantly detecting a leak point when a leak occurs in a large scale pipe network, To a sensing module.

In order to solve the above problems, a sensing module for detecting water leakage in a buried pipe according to the present invention is a plurality of sensing modules spaced apart from each other along a channel embedded in the ground and installed at a joint of a channel or a channel, A sensing unit for generating sensing information, which is a value obtained by measuring information on the perimeter of the channel and the channel; And an RFID unit coupled to the sensing unit and storing pipeline information of a corresponding channel, which is a point where a sensing unit is installed, and communicating with a reader on the ground.

The sensing unit may include at least one of a temperature sensor, a humidity sensor, a pressure sensor, and a vibration sensor. The sensing unit may store a unique code assigned to each sensing module, and at least one of the temperature sensor, the humidity sensor, the pressure sensor, And a storage unit for collecting and storing the sensing information generated by the sensing unit and transmitting the sensing information to the data processing unit.

In addition, the storage unit is connected to the data processing unit, and the data processing unit receives the sensing information and the unique code from the storage unit, transmits the sensing information and the unique code to the central server, and supplies power to the sensing unit.

In addition, the central server compares whether the sensing information transmitted is included in the leakage range region of the predetermined sensing information, determines whether the leakage of the pipeline is leaked, analyzes the inherent code of the sensing module when the leakage occurs, .

The sensing unit is connected to the data processing unit through a first line, the sensing information of the sensing unit is transmitted to the data processing unit through the first line, and the sensing unit is configured to receive power from the data processing unit, And the RFID unit is connected to the data processing unit through the second line to receive power.

As described above, the sensing module for sensing the leakage of the buried channel according to the present invention can be improved in workability because the sensing unit and the RFID unit are configured as a single sensing module. There is an advantage that the position of the pipeline can be precisely detected at the time of occurrence of leakage, and immediate maintenance can be performed.

1 is a view showing an example in which a sensing module according to the present invention is applied to a buried channel;
2 is a schematic diagram illustrating a sensing module according to the present invention;
3 is a schematic diagram showing an embodiment of a sensing unit which is an embodiment of the present invention;
4 is a view showing an embodiment of a vibration sensor which is an embodiment of the present invention.
5 is a diagram showing an embodiment of a signal generating section which is a constitution of the present invention.
6 shows an embodiment of a sensing module according to the invention;

In describing the present invention, terms and words used in the present specification and claims are to be construed in accordance with the principles of the present invention, on the basis that the inventor can properly define the concept of a term in order to best explain his invention It should be construed as meaning and concept consistent with the technical idea of.

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

2 is a schematic diagram showing a sensing module according to the present invention, and FIG. 3 is a block diagram showing an example of a sensing unit according to an embodiment of the present invention. Referring to FIG. 1, Fig. 5 is a view showing an embodiment of a signal generating unit, which is a constitution of the present invention, and Fig. 6 is a diagram showing an example of a vibration sensor according to the present invention, Lt; RTI ID = 0.0 > 1 < / RTI >

The sensing module for detecting the leakage of the buried channel according to the present invention is installed in the buried channel P so that the exact position of the channel P can be detected at the occurrence of leakage of the channel P, do.

As shown in FIG. 1, the sensing module 1 is spaced a predetermined distance along a conduit P buried in the ground, and is connected to one side of the conduit P or a conduit P and a conduit The sensing module for detecting leakage of the buried channel according to the present invention includes a sensing unit 100 and an RFID unit 200 as shown in FIG.

The sensing unit 100 may include a storage unit 120 and the storage unit 120 may include at least one of a temperature sensor 110a, a humidity sensor 110b, a pressure sensor 110c, and a vibration sensor 110d. Lt; / RTI >

The storage unit 120 stores a unique code assigned to each sensing module 1 and stores at least one of the temperature sensor 110a, the humidity sensor 110b, the pressure sensor 110c, and the vibration sensor 110d And transmits the stored sensing information to the intermediate processing unit 2, which will be described later.

The RFID unit 200 is coupled to the sensing unit 100 and stores the channel information of the channel P where the sensing unit 100 is installed and transmits the channel information to the reader 4 on the ground. And transmits it.

As described above, since the sensing unit 100 and the RFID unit 200 are combined into one module structure, the construction time and cost can be reduced by excavating the ground, .

Here, the pipeline information means unique information such as a date of burial for each pipeline P, a buried organs, a depth of buried, a buried position, a buried direction, a material, a diameter, and production information. Based on the pipeline information, So that a quicker construction can be performed during repair and replacement work.

As shown in FIG. 1, the sensing module 1 according to the present invention includes an intermediate processing unit 2 having a plurality of sensing modules 1 arranged along a pipeline P, The inherent code of the sensing module 1 may be primarily transmitted to the intermediate processing unit 2 together with the sensing information generated from the plurality of sensing modules 1 installed in the predetermined region.

The intermediate processing unit 2 includes a communication unit 21 for receiving sensing information and unique code from the storage unit 120 and transmitting the sensing information and unique code to the central server 3, a power supply unit 22 for supplying power to the sensing unit, Lt; / RTI >

In addition, the sensing information and the unique code collected by the intermediate processing unit 2 of the other area including the intermediate processing unit 2 provided for each predetermined area are transmitted to the central server 3 through the communication network, It is possible to grasp the leakage of the pipeline P through the unique code and the position of the sensing module 1 when the leakage occurs.

At this time, the central server 3 receives the intrinsic code value and the sensing information value of each sensing module 1 collected in the intermediate processing unit 2, and detects leakage and leakage positions of the pipeline P, The central server 3 can determine whether the leaked pipe is leaked by comparing the sensing information transmitted in advance by setting the leaked range region of the sensing information and comparing whether the transmitted sensing information is included in the leaked range region of the preset sensing information.

When the leak is detected, the central server 3 can track the position of the pipeline P through the unique code assigned to each sensing module 1, so that immediate maintenance can be performed.

The reason why the unique code is assigned to each of the sensing modules 1 is that the sensing module 1 installed along the pipeline P is referred to as a first sensing module 1-1 and a second sensing module N) sensing module (1-n), and the like, it is possible to track the position of the pipeline (P) through the unique code when leakage occurs in the pipeline (P).

In addition, the manager can assign the unique code assigned to each sensing module 1 through an input device (not shown) separately provided in the central server 3 or the intermediate processing part 2, It is preferable that the editing module can be freely edited such as adding and re-assigning the inherent code assigned to the sensing module 1.

The sensing module 1 is configured such that the sensing unit 100 and the RFID unit 200 are combined to form a single module. It is possible to generate the sensing information of the peripheral information of the sensing module 1 and to transmit the channel information of the channel P to which the sensing module 1 is installed to the central server 3. [

At this time, the pipeline information of the RFID unit 200 is placed on the ground on the upper side of the RFID unit 200 embedded in the ground and the radio waves are received from the RFID unit 200 through the reader 4, The central server 3 is configured to transmit the pipeline information to the central server 3 so that the central server 3 can receive the pipeline information of the sensing unit 100 and the corresponding pipeline information It is possible to grasp the specific information such as the position of the pipeline (P) and the depth of the pipeline, the buried position, the buried direction, the material, the diameter, and the production information.

Hereinafter, the sensing unit 100, which is a constitution of the present invention, will be described in more detail with reference to FIG.

One or more of the temperature sensor 110a, the humidity sensor 110b, the pressure sensor 110c and the vibration sensor 110d are connected to the sensing unit 110 and the conduit P and the conduit P, Sensing information, which is a value obtained by measuring the ambient information, that is, the temperature and humidity of the soil around the pipeline P, the pressure of the fluid flowing in the pipeline P, and the vibration signal generated by the flow of the fluid, In the storage unit 120, which is one configuration of the < RTI ID = 0.0 >

6) in the case where the temperature sensor 110a is applied to the sensing unit 100 so that when leakage occurs in the pipeline P, It is possible to detect that leakage occurs when the temperature value is lower than the sensing information of the neighboring sensing module 1 because the temperature of the point is lowered.

When the humidity sensor 110b is applied to the sensing unit 100, it is arranged in the surrounding soil (refer to FIG. 6) as in the case of the temperature sensor 110a (see FIG. 6) It is possible to detect that leakage occurs when the humidity value becomes higher than the sensing information of the neighboring sensing module 1 because the humidity is high.

At this time, it is preferable to simultaneously apply the temperature sensor 110a and the humidity sensor 110b to the sensing unit 100. This is because when the leakage of water occurs in the specific channel P, The central server 3 can detect that leakage of the pipeline P occurs more accurately. If only the temperature sensor 110a is applied, if the temperature of the soil is lowered due to reasons other than leakage, In order to compensate for this, it is possible to compare the temperature and humidity sensing values together. As a result, even if the temperature drops, it can be confirmed that there is no leakage when there is no change in the humidity value. .

Also, when the sensing module 1 is distributed along the channel P, even when the temperature and humidity values of a certain region are changed due to rain or the like, the sensing module 1 is compared with the sensing information change amount of the peripheral sensing module 1, It will not be mistaken.

When the pressure sensor 110c is applied to the sensing unit 100, the pressure sensor 110c is installed inside the conduit P (see FIG. 6), and when the fluid flows in the conduit P, It is possible to detect the leakage of the fluid through the difference between the fluid pressure of the other section and the fluid pressure of the other section because if the fluid pressure in one section is lower than the pressure in the other section, .

When the vibration sensor 110d is applied to the sensing unit 100, the vibration sensor 110d is attached to the outer surface of one side of the conduit P (refer to FIG. 6) It is possible to grasp the leakage through the generated vibration.

Specifically, the vibration sensor 110d includes a body 110d-1, a weight 110d-2, and a signal generator 110d-3 as shown in FIG.

A space portion 110d-12 provided in a watertight manner is formed inside the main body 110d-1 and a pressing projection 110d-11 protrudes upward from a bottom surface of the space portion 110d-12 .

Although the main body 110d-1 is not shown to be attached to the pipeline, a magnetic body may be provided on the bottom surface of the main body 110d-1 so that the main body 110d- Or the like.

In addition, a cover (not shown) may be fastened to an upper portion of the main body 110d-1 so that the inner space portion 110d-12 may have a watertight structure.

The weight 110d-2 is spaced upward from the inner bottom surface of the body in the space 110d-12, and a pressing end 110d-22 protrudes from the bottom.

On the other hand, the signal generating unit 110d-3 has an upper surface that is in close contact with the pressure terminal 110d-22 and a lower surface that is closely disposed to the pressure projection 110d-11, And transmits the sensing information to the storage unit 120. The storage unit 120 stores the sensing information.

5, the signal generating unit 110d-3 includes a socket 110d-31, a piezoelectric element 110d-33, a first board 110d-3, -34), and a second board 110d-35.

The socket 110d-31 has a hollow 110d-32 at its center, and the piezoelectric element 110d-33 is disposed at the hollow 110d-32.

The upper surface of the first board 110d-34 is fixed to the upper surface of the socket 110d-31 so that the upper surface of the first board 110d-34 is in close contact with the pressing terminal 110d-22, So as to generate a first signal.

The second board 110d-35 is fixed to the lower surface of the socket so that the lower surface of the second board 110d-35 is in close contact with the pressing projection and the upper surface of the second board 110d-35 closely contacts with the lower surface of the piezoelectric element.

The vibration pressure generated by the vibration of the weight 110d-2 is transmitted to the piezoelectric element 110d-33 through the first board 110d-34, and the vibration of the main body 110d-1 Is transmitted to the piezoelectric element 110d-33 through the second board 110d-35 so that the vibration of the upper board 110d-34 is transmitted to the first board 110d- The second board 110d-35 generates a first signal that is sensing information generated from the piezoelectric element 110d-33, and the second board 110d-35 generates sensing information generated from the piezoelectric element 110d-33, And the generated first and second signals are transmitted to the storage unit.

For example, in the intermediate processing unit 2 or the central server 3, the first signal and the second signal are collected, and the average value of each signal is calculated and compared, or the first signal and the second signal are compared By selecting a signal having a small deviation of the signal value among the two signals, it is possible to precisely diagnose the leak or not by using more stable sensing information.

The vibration sensor 110d is applied to the sensing unit 100 to detect the leakage of water as described above so that a plurality of sensing modules 1 are installed at predetermined intervals in the pipeline P, By measuring the sensing information which is the vibration signal of the flowing fluid, a vibration signal of a certain frequency band is generated by the pressure when the fluid flows through the pipe P, that is, when the fluid does not flow to the pipe P, If the leakage occurs due to cracks or the like in the pipeline P, the flow rate of the fluid flowing after passing through the leak point and the flow rate of the fluid flowing after the leakage point So that the vibration signal is also changed.

Therefore, when the vibration signal of the pipeline P is measured at any time, it is possible to detect whether or not the pipeline P leaks.

Piezoelectric, Piezo ceramic, Piezo quartz, etc. can be used as these piezoelectric elements. Since these piezoelectric elements are high in accuracy and relatively low in cost, It is possible to prevent the installation cost from being burdensome even if a plurality of units are installed.

4, the outer peripheral coating layer 110d-24 may be formed on the outer circumferential surface of the weight 110d-2. This is because the sensing module according to the present invention is buried in the ground, Humidity environment, and when moisture accumulates on the weight 110d-2 or dew condensation occurs, the vibrating motion is adversely affected, and an error may occur in the sensing information.

Accordingly, the outer circumferential coating layer 110d-24 may be formed on the outer circumferential surface of the weight 110d-2 to generate more accurate sensing information. The outer circumferential coating layer 110d-24 may be formed of polyacrylic acid resin 100 10 to 20 parts by weight of a cerium oxide powder, 1 to 5 parts by weight of manganese oxide, 0.5 to 3 parts by weight of cellulose acetate, and 1 to 5 parts by weight of calcium nitrite, based on the weight.

As a main material, a polyacrylic resin is used, which is to add water to the outer coating layer 110d-24 as a water-soluble binder to prevent the occurrence of condensation.

The sericite serves to reinforce the strength of the outer coating layer 110d-24 as a filler. In particular, the sericite prevents the occurrence of condensation of the outer coating layer 110d-24 as a hydrophilic mineral, So that vibration can be performed.

In addition, cellulose acetate is added to the outer coating layer 110d-24. The cellulose acetate is added as a hydrophilizing agent to control the scale generation by the weight 110d-2 by hydrophilization.

On the other hand, even if hydrophilic property is imparted by adding cellulose acetate to the polymer, the scale of the foreign substance on the surface of the weight 110d-2 can not be controlled. Generally, colloidal materials such as EPS, protein, and the like have a weak negative charge due to the selective adsorption of anions, especially hydroxide ions, in the medium, so that manganese oxide is further added to the outer coating layer 110d-24. The manganese oxide exhibits a negative charge at a pH of 6 to 8 to generate sludge and repulsive force, so that the generation of scale due to sludge can be controlled.

The above-mentioned calcium nitrite is intended to improve the anti-rust property and to prevent the scale 110d-2 from depositing scale due to corrosion. And acts to protect the outer peripheral coating layer 110d-24 from corrosion without adversely affecting the strength of the outer peripheral coating layer 110d-24. Thus, the anti-rusting effect of preventing the corrosion of the metal weight weight 110d-2 is achieved even if a relatively small amount is used .

This small nitrite ion (NO2-) of the calcium nitrite reacts with the iron ion (Fe ++) eluted from iron (Fe) to prevent the formation of ferric hydroxide [Fe (OH) 3] The compound Fe2O3 is produced. The resulting Fe2O3 forms a film at a corrosion point formed on the surface of the weight 110d-2 and closes it, thereby preventing corrosion of the weight 110d-2.

Hereinafter, an embodiment of the sensing module 1 according to the present invention will be described with reference to FIG.

The sensing unit 100 may be connected to the communication unit 21 of the intermediate processing unit 2 through the first line 130. The sensing unit 100 may be connected to the sensing unit 100 through the first line 130, The sensing information of the intermediate processing unit 2 may be transmitted to the intermediate processing unit 2 and power may be supplied from the power supply unit 22 of the intermediate processing unit 2 to the sensing unit 100. [

The RFID unit 200 may be connected to the second line 230 to receive power from the power supply unit 22 of the intermediate processing unit 2 so that the RFID unit 200 is always powered So that replacement of the battery of the RFID unit 200 becomes unnecessary, and semi-permanent use of the battery can be achieved.

In addition, since the RFID unit 200 is supplied with power through the second line 230 as described above, the RFID unit 200 can be disposed closer to the ground than the sensor unit, The communication environment can be improved.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, Of the right.

P: channel 1: sensing module
2: intermediate processing unit 3: central server
4: reader 100: sensing unit
200: RFID section

Claims (6)

A plurality of sensing modules spaced apart from each other by a predetermined distance along a pipeline buried in the ground, the sensing module being installed at one side of the pipeline or at a joint portion of the pipeline, the sensing module comprising sensing means for generating sensing information, And an RFID unit connected to the sensing unit and storing pipeline information of a corresponding channel, which is a location where a sensing unit is installed, and communicating with a reader on the ground, the sensing module comprising:
The sensing unit is connected to at least one of a temperature sensor, a humidity sensor, a pressure sensor, and a vibration sensor. The sensing unit generates a sensing signal, which is generated through at least one of the temperature sensor, the humidity sensor, the pressure sensor, And a storage unit for collecting and storing information,
Wherein the pressure sensor is a watertight structure having a space formed on an inner side thereof and a pressing protrusion formed on an inner bottom surface thereof and attached to the duct; A weight weight spaced upward from the inner bottom surface of the body in the space portion and having a pressing end projecting from the bottom; And a signal generator which is disposed in close contact with the pressing protrusions, and converts a vibration signal of the weight to sensing information and transmits the sensing information to the storage unit,
Wherein the signal generating unit comprises: a socket having a center hollow; A piezoelectric element disposed in the hollow; A first board fixed on an upper surface of the socket and having an upper surface closely contacted with the pressure terminal and a lower surface closely contacting the upper surface of the piezoelectric element to generate a first signal; And a second board fixed on a lower surface of the socket and having a lower surface closely contacted with the pressing projection and an upper surface closely contacting a lower end of the piezoelectric element to generate a second signal,
Wherein an outer circumferential surface of the weights is coated with an outer coating layer comprising 10 to 20 parts by weight of a cericite powder, 1 to 5 parts by weight of a manganese oxide, 0.5 to 3 parts by weight of cellulose acetate, and 1 to 5 parts by weight of calcium nitrate per 100 parts by weight of a polyacrylic acid resin. And a sensing module for sensing the leakage of the buried channel.
delete The method according to claim 1,
The storage unit
And an intermediate processing unit,
The intermediate processing unit
A communication unit for receiving the sensing information and the unique code from the storage unit and transmitting the sensing information and the unique code to the central server;
A power supply unit for supplying power to the sensing unit;
And a sensing module for sensing the leakage of the buried channel.








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KR102168923B1 (en) 2019-12-09 2020-10-22 주식회사 뉴보텍 Leakage Sensing System With Pipe Rehabilitation Method

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KR101980524B1 (en) * 2018-10-19 2019-05-21 (주)동명엔터프라이즈 Apparatus for protecting soil/underground water pollution
CN113654687A (en) * 2021-06-19 2021-11-16 广州欧纳电子科技有限公司 Cable type temperature observation chain
KR102503510B1 (en) * 2022-10-11 2023-02-28 (주)조은공간정보 Underground facility survey system for monitoring position change of underground facility and survey method therefor

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101535286B1 (en) * 2015-01-07 2015-07-09 주식회사 디앤샤인 System for checking leakage of water pipe

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101535286B1 (en) * 2015-01-07 2015-07-09 주식회사 디앤샤인 System for checking leakage of water pipe

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200069688A (en) * 2018-12-07 2020-06-17 (주)동명엔터프라이즈 Fuel leakage monitoring apparatus and method in pipe line
KR102189240B1 (en) * 2018-12-07 2020-12-09 (주)동명엔터프라이즈 Fuel leakage monitoring apparatus and method in pipe line
KR102168923B1 (en) 2019-12-09 2020-10-22 주식회사 뉴보텍 Leakage Sensing System With Pipe Rehabilitation Method

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