KR101694700B1 - Diagnostic systems using vibration measurement devices for water distribution - Google Patents

Abstract

The present invention relates to a vibration measurement apparatus for a water piping network and a water piping network diagnostic system using the same, capable of correctly measuring vibration of the water piping network when vibrations of a road factor and environmental factors are minimized; and correctly diagnosing a state of the water piping network through a pattern comparison analysis based on past data. According to the present invention, the system comprises: a water piping network vibration measurement apparatus to detect vibrations of a water pipe buried underground; and a water piping network diagnostic apparatus sampling a vibration detection signal output from the vibration measurement apparatus to accumulate and store the signal, generating a past vibration pattern from past vibration information stored by performing measurement in a state not affected from the surrounding environments, generating a present vibration pattern from a currently measured vibration detection signal, and comparing and analyzing the generated past and present vibration pattern to determine a state of the water pipe.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water pipe system,

The present invention relates to a water pipe network diagnosis system using a water pipe network vibration measuring apparatus and more particularly to a water pipe network system that accurately measures the water pipe network vibration with minimized vibration of road and environmental factors, The present invention relates to a water supply pipe network diagnosis system using a water pipe network vibration measuring device for accurately diagnosing a state of a pipe network.

Water runoff is an essential urban infrastructure, and the water basin is the basic framework. However, due to the nature of the water pipe, which is mainly buried in the underground, there is a problem that it is not easy to accurately grasp the breakage state and aging.

If the water pipe is damaged due to external factors or aging, it may cause economic loss due to occurrence of leaking water, etc. Also, pollutants may penetrate into the damaged part, Causing many small problems. Here, the breakage of the water pipe is not necessarily proportional to the old state of the water pipe, and therefore it is difficult to say that replacing the water pipe in order from old to new is not preferable from the viewpoint of economy and efficiency.

Therefore, it is required to accurately diagnose the water supply pipe in order to apply to the change priority order of the water supply pipe.

Conventionally proposed techniques for diagnosis of a water supply network are disclosed in the following Patent Documents 1 to Patent Documents.

The prior art disclosed in Patent Document 1 includes a pipe network model automatic generation module for automatically generating a pipe network model for pipe network diagnosis, a pipe network analysis module for analyzing pipe network considering the hydraulic pressure, flow rate, and leakage amount information, A pipe condition evaluation module for automatically evaluating using parameters, a repair / water quality diagnostic module for analyzing repair / water quality information including leakage amount and water quality information of the pipe network, and determining the pipe improvement priority using the collected data And the facility improvement decision module for the improvement.

Through such a configuration, it is possible to prioritize the maintenance of the network by using the automatic analysis results of the water network estimated based on the repair, water quality, and facility diagnosis results.

In addition, the prior art disclosed in Patent Document 2 includes an acoustic sensing unit for sensing the sound of the object, a storage unit, a transmitter, and a leakage detection module, and it is possible to more precisely and easily detect leakage and leakage Minimizing waste of time and manpower for exploration in areas where there is no leakage, thereby maximizing work efficiency.

In addition, the prior art disclosed in Patent Document 3 includes a sensing sensor unit for sensing the sound of the object to which the fluid flows, a storage unit for storing sound data, a leakage sensing device, and an operation unit for analyzing the sound data, The noise level and the noise distribution are used to analyze the noise generated by the noise, and the leakage and leak location can be more precisely and easily detected, minimizing waste of time and manpower for exploration in an area without leakage Thereby maximizing work efficiency.

In the prior art disclosed in Patent Document 4, both ends of a mold are connected to each other between cut pipes, respectively. Both ends of the mold are connected to both sides of the mold, and an upper end of the mold is formed with an inlet flange And a stopper flange is provided at the entrance flange so as to be openable and closable so that the endoscopic equipment can be inserted without cutting the drain pipe to reduce the construction cost and shorten the number of steps according to the construction time.

Korea Registered Patent No. 10-1283828 (Registered on July 23, 2013) (Water Supply Network Diagnosis System) Korean Registered Patent No. 10-1382231 (Registered on April 04, 2014) (Leakage Diagnosis System Using Negative Continuity) Korean Patent Laid-open Publication No. 10-2014-0063380 (Published May 2014, May 27, 2007) (Continuous Leakage Diagnosis System Using Noise Level and Distribution) Korea public utility model 20-2010-0003282 issue (2010.03.25. Public) (diversion pipe for water pipe diagnosis)

However, in the conventional technique, the diagnosis information of the water pipe is collected using the noise of the water pipe or the endoscope, and the water pipe is diagnosed by analyzing the diagnosis information. The method using the noise measurement method or the endoscope is a water pipe diagnosis It is inconvenient to acquire the information for the water pipe network and the accuracy of the diagnosis of the water pipe network is lacking.

In particular, the prior art disclosed in Patent Document 1 has a disadvantage in that the water pipe network is analyzed in consideration of hydraulic pressure, flow rate, and water leakage amount information, the water pipe network analysis is complex, and information collection is complicated and inconvenient due to a large number of information collection .

SUMMARY OF THE INVENTION Accordingly, the present invention has been made in order to solve all the problems occurring in the related art as described above, and it is an object of the present invention to accurately measure a water network vibration in a state where vibration of road and environmental factors is minimized, The present invention provides a water pipe network diagnostic system using a water pipe network vibration measuring device that can accurately diagnose the state of a water pipe network through a network.

It is another object of the present invention to provide a water pipe network diagnosis system using a water pipe network vibration measuring apparatus which can easily acquire state information for diagnosing a water pipe network.

According to another aspect of the present invention, there is provided an apparatus for measuring a pipe network vibration, comprising: a fixing member for fixing a vibration transmission shaft to a water pipe embedded in a basement; A vibration transmission shaft that contacts the water pipe by the fixing member and transmits vibration generated in the water pipe; And a vibration sensor for converting the vibration transmitted through the vibration transmission shaft into an electrical signal and outputting the electrical signal as a vibration detection signal.

Wherein the vibration transmission shaft is in contact with the water pipe at right angles.

In order to accomplish the above object, a water pipe network diagnosis system using a water pipe network vibration measuring apparatus according to the present invention comprises: a water pipe network vibration measuring device for detecting a vibration of a water pipe buried underground; A vibration detection signal output from the vibration measurement device is sampled and cumulatively stored, a past vibration pattern is generated from past vibration information measured and stored in the state without influence of the surrounding environment, and a current vibration pattern And a water pipe network diagnosing device for comparing the generated past vibration pattern with a current vibration pattern to determine a water pipe state.

The above-mentioned water pipe network vibration measuring device includes a fixing member for fixing a vibration transmission shaft to a water pipe buried in the ground; A vibration transmission shaft that contacts the water pipe by the fixing member and transmits vibration generated in the water pipe; And a vibration sensor for converting the vibration transmitted through the vibration transmission shaft into an electrical signal and outputting the electrical signal as a vibration detection signal.

Wherein the vibration transmission shaft is in contact with the water pipe at right angles, and the vibration sensor transmits the vibration detection signal to the water pipe diagnostic apparatus by wire or wirelessly.

In the above, the water pipe network diagnostic apparatus includes a vibration receiving unit that receives the vibration detection signal transmitted through the water pipe network vibration measuring apparatus; A vibration sampling unit for sampling the vibration detection signal received by the vibration receiving unit; A vibration information storage unit for cumulatively storing the vibration signal sampled by the vibration sampling unit in a memory as vibration information; And a vibration pattern generation unit for generating a past vibration pattern with past vibration information measured and stored in the state without influence of the surrounding environment stored in the memory and generating a current vibration pattern using the currently measured vibration detection signal .

The water pipe network diagnosing apparatus may include a pattern comparing unit for comparing the past vibration pattern generated by the vibration pattern generating unit and the current vibration pattern on a time basis to extract a difference therebetween; And a water pipe state determination unit for determining a water pipe state based on the difference of the vibration pattern extracted by the pattern comparison unit.

According to the present invention, it is possible to accurately measure the water pipe network vibration in a state where the vibration of the road and environmental factors is minimized, and to accurately diagnose the state of the water pipe network through the pattern comparison analysis based on the past data.

In addition, according to the present invention, it is possible to detect the vibration of the water pipe according to the flow of the fluid by connecting the vibration transmission shaft to the water pipe embedded in the underground, Detection is simple and convenient.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram of a water pipe network vibration measuring apparatus according to the present invention,
FIG. 2 is a block diagram of the water tube network vibrating apparatus of FIG. 1;
3 is a diagram illustrating a pattern comparison and analysis example for diagnosing a water distribution network in the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a water pipe network vibration apparatus and a water pipe network diagnosis system using the same according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram of a water pipe network vibration measuring apparatus according to a preferred embodiment of the present invention and a water pipe network diagnosis system using the same.

The present invention is broadly classified into a water pipe network vibration measuring device for measuring the vibration of a water pipe network and a diagnosis system for diagnosing the water pipe network using the same. In order to clarify the explanation, the water pipe network vibration measuring device and the water pipe network diagnosis system .

The water pipe network diagnosis system using the water pipe network vibration measuring apparatus according to the present invention includes a water pipe network measuring apparatus 30 and a water pipe network diagnosis apparatus 40.

Here, it is preferable that the water pipe network diagnosis apparatus 40 is implemented in a small size so that it can be easily moved to the water pipe network vibration measuring apparatus 30 while moving and acquire water pipe network vibration measurement information.

The water pipe network vibration measuring device 30 serves to detect the vibration of the water pipe 20 buried in the ground.

In this water pipe network vibration measuring apparatus 30, the vibration transmission shaft 32 is fixedly attached to the water pipe 20 embedded in the ground by the fixing member 31. At this time, it is preferable that the vibration transmission shaft 32 is installed at a right angle (90 °) to the water pipe 31. The fixing member 31 may be any of various known fixing devices, and it is assumed that a fixing band is used in the present invention.

The vibration transmission shaft 32 vibrates directly to the vibration sensor 33 provided on the upper surface of the surface layer / wrapping plate 12 due to breakage, defects or deterioration of the water pipe 20, It is a role to deliver. It is preferable to use a material having high rigidity to prevent the vibration transmission shaft 32 from being bent or broken by an external force.

The vibration sensor 33 receives the vibration transmitted through the vibration transmission shaft 32 and converts it into an electrical vibration detection signal.

As the vibration sensor 33, various known vibration sensors can be used as they are, and a piezoelectric acceleration system, a cantilever vibration system, an ultrasonic system, or the like can be used.

Although not shown in the drawing, it is assumed that the vibration sensor 33 can transmit the detected vibration detection signal to the outside by wire or convert it to wireless and transmit it by wireless communication.

The water pipe network oscillator 50 samples and accumulates a vibration detection signal output from the vibration measuring device 30, accumulates the vibration detection signal, generates a past vibration pattern with past vibration information measured and stored in the state without influence of the surrounding environment And generates a current vibration pattern with the currently measured vibration detection signal and compares and analyzes the generated past vibration pattern with the current vibration pattern to determine the state of the water pipe.

The water pipe network diagnosing apparatus 50 includes a vibration receiving unit 51 for receiving the vibration detecting signal transmitted through the water pipe network vibration measuring apparatus 30 and a vibration detecting unit 51 for receiving the vibration detecting signal received by the vibration receiving unit 51. [ A vibration information storage unit 53 for cumulatively storing the vibration signals sampled by the vibration sampling unit 52 in the memory 57 as vibration information; And a vibration pattern generation unit 54 for generating a past vibration pattern from the past vibration information measured and stored in the absence of the vibration detection signal and generating a current vibration pattern using the currently measured vibration detection signal.

The water pipe network diagnosing apparatus 50 further includes a pattern comparing unit 55 for comparing the past vibration pattern generated by the vibration pattern generating unit 54 and the current vibration pattern on a time basis and extracting the difference, 55) for determining the state of the water pipe based on the difference of the vibration pattern extracted by the water pipe state determining unit (56).

The operation of the water pipe network diagnosis system using the water pipe network vibration measuring apparatus according to the preferred embodiment of the present invention will now be described in detail.

First, the vibration transmission shaft 32 of the water pipe network vibration measuring device 30 is brought into close contact with the water pipe 20 buried in the basement, and fixed with the fixing member 31.

At this time, the vibration sensor 33 of the water pipe network vibration measuring device 30 is installed on the upper surface of the surface layer / packing plate 12 so as to be easily coupled with the water pipe network diagnostic device 50.

In the vibration measurement of the water pipe 20, the input end of the water pipe network diagnostic device 50, which is a mobile type, and the output end of the vibration sensor 33 are connected by a signal transmission cable 40. Thus, the vibration sensor 33 and the water pipe diagnostic apparatus 50 are connected to each other by a cable using the signal transmission cable 40.

Then, when the vibration measurement is started, the natural vibration generated in accordance with the flow of the fluid in the water pipe 20 is transmitted to the vibration sensor 33 through the vibration transmission shaft 32, and the vibration sensor 33 is transmitted Converts the vibration into an electrical signal, and transmits it as a vibration detection signal to the water pipe diagnostic apparatus 50 through the signal transmission cable 40. In this case, when the vibration sensor 33 and the water pipe network diagnostic apparatus 50 transmit and receive the vibration detection signal wirelessly, it is preferable to use a short-range wireless communication method such as ZigBee, Wi-Fi, or Bluetooth. When transmitting and receiving vibration detection signals in a wireless manner, there is an advantage that an inconvenient operation of interconnecting signal transmission cables unlike the wired method is not necessary.

The water pipe network diagnostic apparatus 50 analyzes the pattern of the transmitted vibration detection signal to diagnose the state of the water pipe network.

Here, in order to accurately diagnose the water network, the present invention measures the vibration of the water pipe 20 at a time when vibration of the vehicle or surrounding environment factors are minimized, that is, when the vehicle is small or the surrounding environment is stable. When the vibration measurement of the water pipe starts, the vibration receiving unit 51 of the water pipe network diagnosing apparatus 50 receives the vibration and sends it to the vibration sampling unit 52.

The vibration sampling unit 52 samples and normalizes the transmitted vibration detection signal, and transmits the vibration data to the vibration information adjustment unit 53. The vibration information storage unit 53 maps current time information and vibration sensor information together with the transmitted vibration data and stores the same in the memory 57 as past vibration data. Here, it is preferable to accumulate past vibration data based on various time zones.

In order to diagnose the actual water pipe 20, the vibration of the water pipe 20 is measured and sampled to generate vibration detection data. Here, the vibration of the water pipe 20 is a combined vibration of vibration caused by road and environmental factors and vibration generated by the actual water pipe 20. If the actual water pipe 20 is broken, defective, or aged, the natural vibration of the water pipe 20 varies depending on the flow of the fluid. It is preferable to measure the vibration at the time when the vibration of the road and environmental factors is minimized during the diagnosis of the water pipe 20. However, since the past vibration data measured before is also the vibration data measured at various time points, There is no need to limit it to time.

The vibration pattern generation unit 54 outputs the past vibration data of the vibration sensor corresponding to the past time to the memory 57 based on the current vibration sensor information and the time information, .

Next, a vibration pattern is generated based on the extracted past vibration data, and a vibration pattern is generated by the currently-measured vibration detection data. Here, the vibration pattern means that the detected vibration data are arranged in terms of time.

Thereafter, the generated vibration pattern is displayed through the display unit 58, and the manager views the vibration pattern and analyzes the state of the water pipe network or the state of the water pipe to determine the state.

In addition, the pattern comparing unit 55 compares the past vibration pattern generated by the vibration pattern generating unit 54 with the current vibration pattern on a time basis, extracts the difference, and transmits the difference to the water pipe state determining unit 56. The difference extraction can be simply extracted by superimposing two vibration patterns on the basis of the same time and calculating the difference value. The water conduit state determination section (56) determines the state of the water pipe based on the difference value of the vibration pattern extracted by the pattern comparison section (55). For example, the reference value for determining the state of the water pipe can be determined in advance, compared with the extracted difference value, and the state of the water pipe can be determined based on whether it is large or small. If the extracted difference value is larger than the reference value, it can be judged that the water pipe is damaged, defective or aged. For more accurate diagnosis, it is possible to accurately diagnose the state of the water pipe by setting a plurality of reference values at a plurality of levels, comparing the difference with each of a plurality of reference values, and analyzing whether the difference is large or small.

Although not shown in the drawings, when it is determined that a problem has occurred in the water pipe as a result of the water pipe state determination, an alarm is generated and the administrator can easily recognize the water pipe state.

FIG. 3 is a view showing a screen for a water pipe network vibration analysis. In FIG. 3, A is a low frequency band in which vibration of the road and environmental factors is minimized, and B is a water pipe due to breakage, defects, It is a vibration data pattern detected when a problem occurs in the water pipe.

Therefore, by analyzing the vibration pattern with past vibration data and pattern comparison, it is possible to easily and accurately analyze the state of the water pipe.

As described above, according to the present invention, vibration data in which vehicle vibration and environmental factors are minimized are measured as past data and set as reference data, and the vibration of the water pipe is simply measured in the field, The state of the water pipe can be easily and accurately diagnosed by pattern comparison and analysis.

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, but, on the contrary, It is obvious to those who have.

The present invention is effectively applied to a technique for diagnosing a water pipe network in a water pipe network.

11:
12: Surface layer / packing plate
20: Water pipe
30: Vibration measuring device for water pipes
31: Fixing member
32: Vibration transmission shaft
33: Vibration sensor
40: Signal transmission cable
50: Water pipe network diagnosis system
51:
52: Vibration sampling section
53: vibration information storage unit
54: Vibration pattern generating unit
55: pattern comparison unit
56: Water pipe state determination section
57: Memory
58:

Claims (7)

delete delete A system for diagnosing the state of a water supply network using a water pipe network vibration measuring device,
A water pipe vibration measuring device for detecting the vibration of a water pipe buried underground; And
A vibration detection signal output from the vibration measurement device is sampled and cumulatively stored, a past vibration pattern is generated from past vibration information measured and stored in the state without influence of the surrounding environment, and a current vibration pattern And a water pipe network diagnosing device for comparing the generated past vibration pattern with the current vibration pattern to determine a water pipe state,
Wherein the water pipe network diagnostic apparatus comprises: a vibration pattern generation unit for generating a past vibration pattern by past vibration information measured and stored in a state where there is no influence of the surrounding environment stored in the memory, and generating a current vibration pattern by the currently measured vibration detection signal;
A pattern comparing unit for comparing the past vibration pattern generated by the vibration pattern generating unit and the current vibration pattern on a time basis and extracting the difference;
And a water pipe state determination unit that determines a water pipe state based on a difference between the vibration patterns extracted by the pattern comparison unit,
The water pipe network vibration measuring apparatus includes: a fixing member for fixing a vibration transmission shaft to a water pipe embedded in a basement; A vibration transmission shaft that contacts the water pipe by the fixing member and transmits vibration generated in the water pipe; And a vibration sensor for converting the vibration transmitted through the vibration transmission shaft into an electric signal and outputting the vibration signal as a vibration detection signal.
delete [Claim 4] The method according to claim 3, wherein the vibration transmission shaft is in contact with the water pipe at right angles, and the vibration sensor transmits the vibration detection signal to the water pipe network diagnostic device by wire or wirelessly. Network Diagnosis System.
The water pipe network diagnostic apparatus may further include: a vibration receiving unit that receives the vibration detection signal transmitted through the water pipe network vibration measuring apparatus; A vibration sampling unit for sampling the vibration detection signal received by the vibration receiving unit; And a vibration information storage unit for accumulating vibration signals sampled by the vibration sampling unit in the memory as vibration information.




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