CN106322123B - Pipeline leak detection method, system and its sampler and host - Google Patents
Pipeline leak detection method, system and its sampler and host Download PDFInfo
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- CN106322123B CN106322123B CN201610742221.5A CN201610742221A CN106322123B CN 106322123 B CN106322123 B CN 106322123B CN 201610742221 A CN201610742221 A CN 201610742221A CN 106322123 B CN106322123 B CN 106322123B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/02—Preventing, monitoring, or locating loss
- F17D5/06—Preventing, monitoring, or locating loss using electric or acoustic means
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Abstract
The present invention relates to pressure pipeline leak detection technology field, a kind of pipeline leak detection method, system and its sampler and host are disclosed, to overcome the problems, such as to be easy present in separate unit leak detector to lead to erroneous judgement because of liquid, gas flow rate or the pressure change in pipeline.Pipeline leak detection method disclosed by the invention includes: to arrange one group of sampler in the region of leaking hunting of pipeline with linear array or matrix-style；In the wireless mode by the operating mode setting of host, then sampler carries out data acquisition simultaneously in key group, and the sampled data of each sampler is stored according to the number piecemeal of sampler, by the synchronously sampled data of each sampler of comparative analysis, determine leak source position.
Description
Technical field
The present invention relates to pressure pipeline leak detection technology field more particularly to a kind of pipeline leak detection methods, system and its sampling
Device and host.
Background technique
The water supply line in city is affected by various factors, causes with the fast development of construction and the passage of time
Local leakage, as natural aging, the differential settlement of ground, the impact of traffic loading, the salinization of soil, urban construction influence,
Pipeline construction is bad etc..However, for the pipe leakage phenomenon in city, due to the effect of leaking hunting of existing leak detecting device is undesirable
Timely it can not be managed and be repaired, to cause the waste of water resource.Existing leak test plant mainly passes through acquisition leakage
Inactivating signal is judged, and missed signal is influenced very by ambient noise, the transaudient characteristic of pipeline and test point position, embedded situation
Greatly.Therefore, improve leak detecting device anti-interference ability and data-handling capacity very it is necessary to.
Entitled " the pipeline leak detection instrument " of applicant in this case's earlier application No. 201521102012.1 patents (publication number:
205278788U), as shown in Figure 1, the pipeline leak detection instrument includes: sound pick-up, microphone, monitoring headpone, low noise Switching Power Supply
And CPU, and further include that the noise treatment module 1, speech processing module 2, multi-path choice connecting with CPU are monitored module 3, touched
Screen 4 and memory module 5, wherein sound pick-up is connected to the input terminal of noise treatment module 1, and microphone is connected to speech processes mould
The input terminal of block 2, monitoring headpone are connected to the output end that multi-path choice monitors module 3, and multi-path choice monitors the input terminal of module 3
It is connect with noise treatment module 1 and speech processing module 2.The pipeline leak detection instrument in the operating condition, is made an uproar by sound pick-up collection
Then the noise transmission received is filtered by sound to noise treatment module, the leak noise screened out is counted
After word filtering/spectrum analysis, converts through CPU and shown by touch screen, operator can be visually observed that corresponding frequencies model
Enclose interior corresponding instantaneous noise signal；Corresponding Filtering Analysis mode is selected according to the distribution of frequency, and is issued by touch screen
Operational order is filtered analysis, and the more close leakage point position of reselection collects noise again and carries out accurate measurement or point survey, touching
Touch the continuous noise curve that shields and can draw automatically in certain time.Wherein fine mode can exclude the interference of ambient noise, point
Judgement is further analyzed in the suspicious leakage point that survey mode can detect investigation to early period.Work as in addition, can be recorded by microphone
The position of preceding noise understands specific location when facilitating post analysis, keeps the determination of leakage point position more quick；It can pass through simultaneously
Headphone monitor noise and voice assist operator to make more accurate judgement.
However separate unit leak detector is relied on to be collected by multiple noise to check suspicious leakage point, efficiency is relatively low；And
Since the sampling time is there are tandem, the data of acquisition are easy because of liquid, gas flow rate or the pressure change in pipeline
Cause to judge by accident, to need to be further improved.
Summary of the invention
Present invention aims at a kind of pipeline leak detection method, system and its sampler and host is disclosed, to overcome separate unit to survey
The problem of leading to erroneous judgement because of liquid, gas flow rate or the pressure change in pipeline is easy present in leakage instrument.
To achieve the above object, the present invention discloses a kind of sampler applied to pipeline leak detection system, comprising: the first CPU
And its first noise treatment module of connection, the input terminal of the first noise treatment module is connect with the first sound pick-up, described
The mark module of number of first CPU also with first communication module and for identifying each sampler is connect；
First CPU, for being interacted by the first communication module with host, comprising: logical from described first
Believe that module obtains the operational order of host, then instructs the first noise treatment module of collaboration to carry out corresponding configuration according to corresponding operating
And data acquisition, and sampler number is carried in the data response for returning to the host.
To achieve the above object, invention additionally discloses a kind of hosts applied to pipeline leak detection system, comprising:
2nd CPU and the mode setting module being connect with the 2nd CPU, second communication module, the second noise treatment module,
Multi-path choice monitors module, touch screen and memory module, and the input terminal of the second noise treatment module and the second sound pick-up connect
It connects, and is equipped with monitoring headpone and is connected to the output end that multi-path choice monitors module, the multi-path choice monitors the input terminal of module
It is connect with the second noise treatment module；
2nd CPU, for determining the current operating mode of host, the operating mode packet by mode setting module
Self test mode and wireless mode are included, and in the wireless mode, is interacted by the second communication module and each sampler, it should
Interaction includes indicating that at least two sampler arranged with linear array or matrix-style carries out data acquisition simultaneously, and according to adopting
The number piecemeal of sample device stores the sampled data of each sampler, by the synchronously sampled data of each sampler of comparative analysis, determines
Leak source position.
To achieve the above object, invention additionally discloses a kind of pipeline leak detection systems, comprising:
At least two one group of above-mentioned sampler that pipeline leak detection region is arranged in linear array or matrix-style；And
At least one above-mentioned host, the second communication module of the host and the first communication module for organizing interior each sampler
It establishes and is wirelessly connected.
To achieve the above object, corresponding with above system and device, invention additionally discloses a kind of pipeline leak detection method,
Include:
One group of sampler is arranged with linear array or matrix-style in the region of leaking hunting of pipeline；
In the wireless mode by the operating mode setting of host, then sampler carries out data acquisition simultaneously in key group,
And the sampled data of each sampler is stored according to the number piecemeal of sampler, pass through the synchronized sampling number of each sampler of comparative analysis
According to determining leak source position.
The invention has the following advantages:
The doubtful leakage noise of underground piping can be acquired by multiple collectors same time, not only measuring speed is fast,
It ensure that collected data are the same time simultaneously, and then pass through the synchronously sampled data of each sampler of comparative analysis, really
Determine leak source position, avoids causing to judge by accident because of liquid, gas flow rate or the pressure change in pipeline.
Below with reference to accompanying drawings, the present invention is described in further detail.
Detailed description of the invention
The attached drawing constituted part of this application is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the structure chart of prior art patent pipeline leak detection instrument；
Fig. 2 is measuring method flow chart disclosed by the embodiments of the present invention.
Specific embodiment
The embodiment of the present invention is described in detail below in conjunction with attached drawing, but the present invention can be defined by the claims
Implement with the multitude of different ways of covering.
Embodiment 1
The embodiment of the present invention discloses a kind of pipeline leak detection system first, comprising: at least two with linear array or matrix side
Formula is arranged in one group of sampler in pipeline leak detection region；And at least one host, in the second communication module and group of the host
The first communication module of each sampler, which is established, to be wirelessly connected.
In the present embodiment, which includes: the first noise treatment module of the first CPU and its connection, the first noise
The input terminal of processing module is connect with the first sound pick-up, and the first CPU is also with first communication module and for identifying each sampler
The mark module of number connects.Wherein, the first CPU, for being interacted by first communication module and host, comprising: from
One communication module obtains the operational order of host, then instructs the first noise treatment module of collaboration to carry out according to corresponding operating corresponding
Configuration and data acquisition, and sampler number is carried in the data response for returning to host.Wherein, to the first noise treatment mould
The corresponding configuration of block includes but is not limited to that user passes through filtering parameter set by manipulation host touch screen etc..
Corresponding, in the present embodiment, above-mentioned host includes: the 2nd CPU and the mode setting mould that connect with the 2nd CPU
Block, second communication module, the second noise treatment module, multi-path choice, which monitor module, (can be used for different with acquisition signal all the way
Switching between the leak noise that is screened out of filtering frequency range), touch screen and memory module, the second noise treatment module it is defeated
Enter end to connect with the second sound pick-up, and is equipped with monitoring headpone and is connected to the output end that multi-path choice monitors module, and the multichannel is selected
The input terminal for selecting monitoring module is connect with the second noise treatment module.Wherein, the 2nd CPU, for passing through mode setting module
Determine the current operating mode of host, operating mode includes self test mode and wireless mode, and in the wireless mode, passes through second
Communication module is interacted with each sampler, which includes that instruction is at least two is adopted with what linear array or matrix-style arranged
Sample device carries out data acquisition simultaneously, and the sampled data of each sampler is stored according to the number piecemeal of sampler, by score
The synchronously sampled data for analysing each sampler determines leak source position；And when host work is in self test mode, make an uproar by described second
Sound processing module and the second sound pick-up carry out data acquisition.
In the present embodiment, above-mentioned first noise treatment module and the second noise treatment are mainly used for that sound pick-up reception will be corresponded to
To noise be filtered, exclude the interference of environmental noise, by the leak noise screened out carry out digital filtering/frequency spectrum
The first and second CPU are transferred to after analysis respectively.Optionally, the first noise treatment module of the sampler in the present embodiment and master
Second noise treatment module of machine can be using the similar structures in Fig. 1.Such as:
First noise treatment module includes sequentially connected pre-amplification circuit, 50Hz trap circuit, eight rank low-pass filtering
Circuit, high-pass filtering circuit, the first rear class amplifying circuit, programmable bandwidth-limited circuit, the second rear class amplifying circuit and number
Filtering/spectrum analyzer circuit, digital filtering/spectrum analyzer circuit output end are connect with the first CPU, and the first sound pick-up is connected to
The input terminal of the input terminal of pre-amplification circuit, eight rank low-pass filter circuits is also connect with the first CPU.
Second noise treatment module includes sequentially connected pre-amplification circuit, 50Hz trap circuit, eight rank low-pass filtering
Circuit, high-pass filtering circuit, the first rear class amplifying circuit, programmable bandwidth-limited circuit, the second rear class amplifying circuit and number
Filtering/spectrum analyzer circuit, digital filtering/spectrum analyzer circuit output end are connect with the 2nd CPU, and the second sound pick-up is connected to
The input terminal of the input terminal of pre-amplification circuit, eight rank low-pass filter circuits is also connect with the 2nd CPU, and multi-path choice monitors mould
Block includes variable connector and power amplifier, and variable connector is separately connected with pre-amplification circuit, the second rear class amplifying circuit, power amplifier
The output end of circuit is connect with monitoring headpone.
In other words, sampler disclosed in the present embodiment can be deleted in the structure of the pipeline leak detection instrument disclosed in Fig. 1
Speech processing module 2, multi-path choice monitor module 3, touch screen 4 and memory module 5, and add the first communication connecting with CPU
Module and mark module.Similarly, host disclosed in the present embodiment can in the structure of the pipeline leak detection instrument disclosed in Fig. 1,
Add the mode setting module connecting with CPU and second communication module；It is worth noting that master in embodiments of the present invention
Machine, the speech processing module and microphone corresponded in pipeline leak detection instrument shown in FIG. 1 then becomes option, because being adopted by multiple
Sample device can quick positioning leakage point Position Approximate so that passing through speech processing module in existing pipeline leak detection instrument
Seem extra successively to record the information such as coordinate of each sampling, but for convenient for user by the host directly as existing pipeline
Leak detector uses, and can also retain.Wherein, the wireless communication protocol between first communication module and second communication module can be adopted
With the standard of the 802.11 of existing IEEE, 802.15,802.16 and 802.20, WLAN WLAN is respectively referred to (using WIFI
Etc. standards), wireless personal area network WPAN (including bluetooth and ultra wide band UWB etc.), wireless MAN WMAN (including WIMAX etc.) and width
The mobile access WBMA of band.Whereby, it by carrying out corresponding programming to first and second single-chip microcontroller, can be realized such as Fig. 2 institute
The leak detection method shown, this method comprises:
Step S1, one group of sampler is arranged with linear array or matrix-style in the region of leaking hunting of pipeline.
Step S2, in the wireless mode by the operating mode setting of host, then sampler is counted simultaneously in key group
According to acquisition, and the sampled data of each sampler is stored according to the number piecemeal of sampler, passes through the same of each sampler of comparative analysis
Sampled data is walked, determines leak source position.
Wherein, in step s 2, which can draw the noise curve of each sampler according to corresponding sampled data, and
The sampling curve of each sampler is dispatched into display on a display screen for user, voluntarily screening is carried out by user and determines leak point
It sets；Intelligent screening can also be carried out to the data after digital filtering or spectrum analysis by the 2nd CPU, to determine leak
Point position.Such as: it is directed to foggara, different sensitivity is set by host, in data-signal collected, noise curve
It fluctuates and maximum can be determined that its corresponding sampler closer to leakage point；And if this group of sampler is made an uproar under different sensitivity
The fluctuation of sound curve less, that is, can determine that it is sampled in overlay area, no leakage point；Further, it is also possible in water use peak and use water
Two groups of data acquisitions are carried out when ebb in two times with same sensitivity, if comparing the noise curve amplitude on peak with water ebb
Increase, it is possible to determine that there are leak regions, then adopt according to the fluctuation size of each sampler amplitude is determining nearest from leakage point
Sampling point.In addition, the sampled data for analyzing the same time point of each sampler by comparing whether there is exception, for example, in one group of sampling
In device, if a certain sampler occurs in the noise amplitude at same time point and/or signal strength etc. compared to other sampled points
It uprushes, then then the sampled point that can go out the exception with preliminary screening may pass through again the self test mode of host closer to leakage point
Further accurately measured.
In the present embodiment, the arrangement mode of linear array is suitable for the predictable application scenarios of pipeline location, and is directed to pipeline
The application scenarios of location fuzzy are then more suitable for the arrangement mode using matrix.Meanwhile being set for accurate measurement leak positioning, it can be with
The mode of range is gradually reduced in sampling several times.For example, carrying out data simultaneously with the linear array sampler at one group of 10 meters of 10 interval
Acquisition acquires determine leak source position between the 5th and the 6th sampler for the first time, then further in the 5th and the 6th
Linear array in sampler interval region with 1 meter of interval rearranges and analysis of data collected determines leakage point in which two sampler
Between, to the position of leakage point is located within 1 meter of error range.
Further, during actual measurement, host can also be arranged in self test mode, and by the second noise
It manages module and the second sound pick-up carries out data acquisition.Such as: after determining leak source position, the operating mode of host is switched to certainly
Survey mode carries out data acquisition and analysis processing further to pass through the second noise treatment module and the second sound pick-up of host.
To sum up, pipeline leak detection method, apparatus and system disclosed in the present embodiment can pass through multiple collectors same time
The doubtful leakage noise of underground piping is acquired, not only measuring speed is fast, while ensure that collected data are the same time
, and then pass through the synchronously sampled data of each sampler of comparative analysis, it determines leak source position, avoids because of liquid, the gas in pipeline
Body flow velocity or pressure change cause to judge by accident.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (6)
1. a kind of host applied to pipeline leak detection system characterized by comprising
2nd CPU and the mode setting module being connect with the 2nd CPU, second communication module, the second noise treatment module, multichannel
Selection is monitored module, touch screen and memory module, the input terminal of the second noise treatment module and is connect with the second sound pick-up, and
It is connected to the output end that multi-path choice monitors module equipped with monitoring headpone, the multi-path choice monitors the input terminal and second of module
The connection of noise treatment module；
2nd CPU, for determining that the current operating mode of host, the operating mode include certainly by mode setting module
Survey mode and the wireless mode that leak source position range is gradually reduced can be sampled several times, and respectively in the wireless mould of each unitary sampling
It under formula, is interacted by the second communication module and each sampler, which includes that instruction is at least two with linear array
Or the sampler of matrix-style arrangement carries out data acquisition simultaneously, and stores adopting for each sampler according to the number piecemeal of sampler
Sample data determine leak source position by the synchronously sampled data of each sampler of comparative analysis.
2. host according to claim 1, which is characterized in that the 2nd CPU is also used to when the host work is certainly
When survey mode, data acquisition is carried out by the second noise treatment module and the second sound pick-up.
3. host according to claim 2, which is characterized in that before the second noise treatment module includes sequentially connected
It sets amplifying circuit, 50Hz trap circuit, eight rank low-pass filter circuits, high-pass filtering circuit, the first rear class amplifying circuit, may be programmed
Bandwidth-limited circuit, the second rear class amplifying circuit and digital filtering or spectrum analyzer circuit, the digital filtering or spectrum analysis
The output end of circuit is connect with the 2nd CPU, and second sound pick-up is connected to the input terminal of the pre-amplification circuit, institute
The input terminal for stating eight rank low-pass filter circuits is also connect with the 2nd CPU, and it includes multichannel that the multi-path choice, which monitors module,
Switch and power amplifier, the variable connector are separately connected with the pre-amplification circuit, the second rear class amplifying circuit, the function
The output end on electric discharge road is connect with monitoring headpone.
4. a kind of pipeline leak detection system including host as claimed any one in claims 1 to 3, which is characterized in that also wrap
Include at least two one group of sampler that pipeline leak detection region is arranged in linear array or matrix-style；And the second of the host
Communication module and the first communication module for organizing interior each sampler, which are established, to be wirelessly connected；
The sampler includes: the first noise treatment module of the first CPU and its connection, the first noise treatment module it is defeated
Enter end to connect with the first sound pick-up, the mark of number of the first CPU also with first communication module and for identifying each sampler
Know module connection；
First CPU, for being interacted by the first communication module with host, comprising: from the first communication mould
Block obtains the operational order of host, then instructs the first noise treatment module of collaboration to carry out corresponding configuration and number according to corresponding operating
Sampler number is carried according to acquisition, and in the data response for returning to the host.
5. a kind of leak detection method applied to pipeline leak detection system described in claim 4 characterized by comprising
One group of sampler is arranged with linear array or matrix-style in the region of leaking hunting of pipeline；
In the wireless mode by the operating mode setting of the host as described in claims 1 to 3 is any, then sampling in key group
Device carries out data acquisition simultaneously, and the sampled data of each sampler is stored according to the number piecemeal of sampler, passes through comparative analysis
The synchronously sampled data of each sampler determines leak source position.
6. leak detection method according to claim 5, which is characterized in that further include:
After determining leak source position, the operating mode of the host is switched to self test mode, further to pass through the host
The second noise treatment module and the second sound pick-up carry out data acquisition and analysis processing.
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| CN107229082B (en) * | 2017-05-26 | 2019-03-26 | 湖南普奇地质勘探设备研究院（普通合伙) | Physical prospecting instrument and its collecting method |
| CN109163225A (en) * | 2018-10-29 | 2019-01-08 | 湖南普奇地质勘探设备研究院（普通合伙) | A kind of leakage water detector and its data processing method |
| CN110159935B (en) * | 2019-06-14 | 2021-06-22 | 哈尔滨工业大学 | Sampler, detection host, pipeline leakage detection system and leakage detection method thereof |
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| CN202469499U (en) * | 2012-03-05 | 2012-10-03 | 四川科伦药业股份有限公司 | Leakage point detection and positioning system for purified water conveying pipeline |
| CN203162558U (en) * | 2013-04-15 | 2013-08-28 | 武建 | Pipeline water leakage electronic monitoring and managing device |
| JP2015011030A (en) * | 2013-06-27 | 2015-01-19 | エルジー シーエヌエス カンパニー リミテッド | Real time remote leak detection system and method |
| CN205278788U (en) * | 2015-12-28 | 2016-06-01 | 陈波 | Pipeline appearance that leaks hunting |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN202469499U (en) * | 2012-03-05 | 2012-10-03 | 四川科伦药业股份有限公司 | Leakage point detection and positioning system for purified water conveying pipeline |
| CN203162558U (en) * | 2013-04-15 | 2013-08-28 | 武建 | Pipeline water leakage electronic monitoring and managing device |
| JP2015011030A (en) * | 2013-06-27 | 2015-01-19 | エルジー シーエヌエス カンパニー リミテッド | Real time remote leak detection system and method |
| CN205278788U (en) * | 2015-12-28 | 2016-06-01 | 陈波 | Pipeline appearance that leaks hunting |
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