CN107606493B - A kind of pipeline leakage checking system - Google Patents
A kind of pipeline leakage checking system Download PDFInfo
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- CN107606493B CN107606493B CN201711025866.8A CN201711025866A CN107606493B CN 107606493 B CN107606493 B CN 107606493B CN 201711025866 A CN201711025866 A CN 201711025866A CN 107606493 B CN107606493 B CN 107606493B
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Abstract
This application discloses a kind of pipeline leakage checking systems, for acquiring the temperature pixel map of pipeline detection zone by temperature collector, after temperature pixel map is converted to bright temperature figure by 3 thermometry by server, the case where judging whether pipe detection region leaks, pipe leakage can be accurately obtained.The system includes: temperature collector, server and application platform, and temperature collector is connect with the server, and server is connect with application platform；Temperature collector, for obtaining the temperature pixel map in pipe detection region；Server is schemed for temperature pixel map to be converted to bright temperature by 3 thermometry；Server is also used to be schemed according to bright temperature to judge whether pipe detection region leaks；Server is also used to when judging that pipe detection region leaks, and generates warning information；Application platform, for according to warning information signal an alert.
Description
Technical field
This application involves pipeline field, in particular to a kind of pipeline leakage checking system.
Background technique
There are two main classes for current pipeline leakage detection method: direct detecting method and Indirect Detecting Method.Directly detect
Method is exactly directly to measure leaking medium using the detecting element (such as leak detection cable or oily sensing element) being preset at outside pipeline.
Indirect Detecting Method is exactly the generation for being inferred to leakage by detecting the variation of pipeline operating parameter, such as detection pressure, flow
Method.
But although direct detecting method can detecte small leakage, and can position, but require in pipe-line construction
It is installed simultaneously with pipeline；Indirect Detecting Method sensitivity is high not as good as direct detecting method, is only suitable for detecting biggish leakage.
Summary of the invention
This application provides a kind of pipeline leakage checking systems, for acquiring pipeline detection zone by temperature collector
Temperature pixel map judges whether pipe detection region occurs after temperature pixel map is converted to bright temperature figure by 3 thermometry
The case where leaking, pipe leakage can be accurately obtained.
The application first aspect provides a kind of pipeline leakage checking system, comprising:
Temperature collector, server and application platform, the temperature collector are connect with the server, the server
It is connect with the application platform；
The temperature collector, for obtaining the temperature pixel map in pipe detection region；
The server is schemed for the temperature pixel map to be converted to bright temperature by 3 thermometry；
The server is also used to judge whether the pipe detection region leaks according to the bright temperature figure；
The server is also used to when judging that the pipe detection region leaks, and generates warning information；
The application platform, for according to the warning information signal an alert.
In conjunction with the application in a first aspect, in the application first aspect first embodiment, the system also includes three electricity
Sub- thermo detector, electronic thermometer are installed on the pipe detection region；
The electronic thermometer, for obtaining the measurement pixel value and test temperature value in the pipe detection region.
In conjunction with the application first aspect first embodiment, in the application first aspect second embodiment, the service
Device includes:
External apparatus interface and processor；
The external apparatus interface is connect with the temperature collector and the electronic thermometer；
The external apparatus interface, for obtaining the measurement picture of three electronic thermometers on the pipe detection region
Element value and test temperature value；
The processor is also used to that temperature temperature transition is calculated according to the measurement pixel value and test temperature value
Equation；
The processor is also used to obtain the pixel value of each pixel in the hot spot pixel map；
The processor is also used to pixel value and the temperature temperature transition equation according to each pixel,
Obtain the calculating temperature value of each pixel；
The processor is also used to choose a pixel as target pixel points；
The processor is also used to choose the pixel of preset quantity in the target pixel points peripheral region as adjusting
Pixel；
The processor, be also used to calculate the target pixel points calculates temperature value and the calculating for adjusting pixel
The average value of temperature value obtains the actual temperature value of the target pixel points；
The processor is also used to obtain the actual temperature value of all pixels point in the hot spot pixel map, obtains bright temperature
Figure.
In conjunction with the application first aspect second embodiment, in the application first aspect third embodiment,
The processor is also used to be schemed according to the bright temperature, obtains the actual temperature value of each pixel；
The processor is also used to judge in the bright temperature figure with the presence or absence of actual temperature value be more than preset temperature threshold value
Pixel；
The processor is also used to when there are the pictures that actual temperature value is more than the preset temperature threshold value in the bright temperature figure
When vegetarian refreshments, determine that the pipe detection region leaks；
The processor is also used to when there is no actual temperature values more than the preset temperature threshold value in the bright temperature figure
When pixel, determine that the pipe detection region does not leak.
In conjunction with the application first aspect second embodiment, in the application first aspect third embodiment,
The processor is also used to be schemed according to the bright temperature, obtains the actual temperature value of each pixel；
The processor is also used to obtain the bright temperature figure of history in record sheet, obtains the historical temperature of each pixel
Value；
The processor is also used to obtain each pixel according to the actual temperature value and the historical temperature value
Temperature change value；
The processor is also used to judge in the bright temperature figure with the presence or absence of temperature change value be more than preset change threshold
Pixel；
The processor is also used to when there are the pictures that temperature change value is more than the preset change threshold in the bright temperature figure
When vegetarian refreshments, determine that the pipe detection region leaks；
The processor is also used to when there is no temperature change values more than the preset change threshold in the bright temperature figure
When pixel, determine that the pipe detection region does not leak.
In conjunction with the application first aspect, first aspect first embodiment, first aspect second embodiment, first aspect
The 4th embodiment of third embodiment or first aspect, in the 5th embodiment of the application first aspect, the temperature acquisition
Device is infrared camera.
In conjunction with the 5th embodiment of the application first aspect, in the application first aspect sixth embodiment, the system
Further include: image processor；
Described image processor is connect with the external apparatus interface of the infrared camera and the server；
The infrared camera, specifically for shooting the temperature figure of conduit region；
Described image processor is also used to determine the pipe detection region for detection in the conduit region；
Described image processor, is also used to by way of mapping, calibrates the pipe detection in the temperature figure
The location of pixels in region obtains the temperature pixel map in the pipe detection region.
In conjunction with the application first aspect sixth embodiment, in the 7th embodiment of the application first aspect,
The server is also used to not generate warning information when judging that the pipe detection region does not leak.
As can be seen from the above technical solutions, pipeline leakage checking system includes that temperature collector, server and application are flat
Platform, temperature collector obtain the temperature pixel map in pipe detection region；Server is turned temperature pixel map by 3 thermometry
It is changed to bright temperature figure, is schemed to judge whether pipe detection region leaks according to bright temperature, when judging that pipe detection region leaks
When, generate warning information, after application platform receives the warning information of server, signal an alert, with existing direct inspection
Survey method is compared, and the application is not necessarily to and pipeline is installed together, and compared with existing Indirect Detecting Method, the application's be can detecte
To the pipe leakage of pixel specification, high sensitivity.
Detailed description of the invention
Fig. 1 is one embodiment schematic diagram of pipeline leakage checking system provided by the present application；
Fig. 2 is another embodiment schematic diagram of pipeline leakage checking system provided by the present application；
Fig. 3 is the another embodiment schematic diagram of pipeline leakage checking system provided by the present application；
Fig. 4 is the another embodiment schematic diagram of pipeline leakage checking system provided by the present application；
Fig. 5 is the another embodiment schematic diagram of pipeline leakage checking system provided by the present application.
Specific embodiment
This application provides a kind of pipeline leakage checking systems, for acquiring pipeline detection zone by temperature collector
Temperature pixel map after temperature pixel map is converted to bright temperature figure by 3 thermometry by server, judges that pipe detection region is
It is no to leak, the case where pipe leakage can be accurately obtained.
Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of embodiments of the present application, instead of all the embodiments.
The description and claims of this application and term " first ", " second ", " third ", " in above-mentioned attached drawing
The (if present)s such as four " are to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should manage
The data that solution is demarcated in this way are interchangeable under appropriate circumstances, so that the embodiments described herein can be in addition to illustrating herein
Or the sequence other than the content of description is implemented.In addition, term " includes " and " having " and their any deformation, it is intended that
Cover it is non-exclusive include, for example, containing the process, method, system, product or equipment of a series of steps or units need not limit
In step or unit those of is clearly listed, but may include be not clearly listed or for these process, methods, produce
The other step or units of product or equipment inherently.
The application obtains the first image information first, wherein the first image newly includes that human face image information or target acquisition are set
The ambient image information of standby surrounding, that is to say, that target acquisition equipment is likely to be at the region for having personnel to enter and leave, it is also possible to
The region entered and left in one without personnel, in order to make it easy to understand, being said respectively to the application below with reference to Fig. 1 and Fig. 2
It is bright.
Referring to Fig. 1, the embodiment of the present application provides a kind of pipeline leakage checking system, comprising:
Temperature collector 101, server 102 and application platform 103, temperature collector 101 are connect with server 102, clothes
Business device 102 is connect with application platform 103；
Temperature collector 101, for obtaining the temperature pixel map in pipe detection region；
Server 102 is schemed for the temperature pixel map to be converted to bright temperature by 3 thermometry；
Server 102 is also used to judge whether the pipe detection region leaks according to the bright temperature figure；
Server 102 is also used to when judging that the pipe detection region leaks, and generates warning information；
Application platform 103, for according to the warning information signal an alert.
In the embodiment of the present application, leading scene to be applied to be is high-temp liquid in pipeline, if pipeline leakage, in pipe line area
The temperature in domain can change, then getting the temperature pixel in pipe detection region by the shooting of temperature collector 101
Figure, because what is obtained from temperature collector 101 is pixel value, generic term is digital quantization value or DN value, it is usually used to
Description is calibrated to the pixel value of meaningful unit not yet, and DN value can be converted to radiance by linear transformation, i.e.,
Radiance=a*DN+b, and thermal infrared radiation luminance picture can be changed into bright temperature image by Planck equation by radiance,
Therefore, it after server 102 receives the temperature pixel map that temperature collector 101 obtains, can be counted by 3 thermometry
Transfer equation is calculated, then temperature pixel map can be converted to bright temperature figure by 3 thermometry.Since bright temperature figure is by temperature picture
What sketch map was converted to, and it is pipe detection region that temperature pixel map is corresponding, then pipe detection region is sent out if there is somewhere
If raw leakage, the temperature that bright temperature figure corresponds at this is necessarily increased, and therefore, bright temperature figure may be implemented server 102 according to the observation
The detection of pipe detection area leakage needs that user pipe detection zone is prompted to have occurred and that have leaked in case of leakage,
To facilitate user timely to handle leakage, therefore server 102 generates warning information, transmits alert information to application platform
103, application platform 103 is according to warning information signal an alert, and alarm signal user reminding user pipe detection zone is
It is leaked.Compared with existing direct detecting method, the application is not necessarily to and pipeline is installed together, with existing indirect detection
Method is compared, the pipe leakage that can detecte pixel specification of the application, high sensitivity.
Optionally, as shown in Fig. 2, in some embodiments of the present application, system further includes three electronic thermometers 201, electricity
Sub- thermo detector 201 is installed on pipe detection region；
Electronic thermometer 201, for obtaining the measurement pixel value and test temperature value in pipe detection region.
Optionally, as shown in figure 3, in some embodiments of the present application, server 102 includes:
External apparatus interface 301 and processor 302；
External apparatus interface 301 is connect with temperature collector 101 and electronic thermometer 201；
External apparatus interface 301, for obtaining on pipe detection region the measurement pixel value and survey of three electronic thermometers
Try temperature value；
Processor 302, for temperature temperature transition equation to be calculated according to measurement pixel value and test temperature value；
Processor 302 is also used to obtain the pixel value of each pixel in hot spot pixel map；
Processor 302 is also used to pixel value and temperature temperature transition equation according to each pixel, obtains each
The calculating temperature value of pixel；
Processor 302 is also used to choose a pixel as target pixel points；
Processor 302 is also used to choose the pixel of preset quantity in target pixel points peripheral region as adjusting pixel
Point；
Processor 302 is also used to calculate the calculating temperature value for calculating temperature value and adjusting pixel of target pixel points
Average value obtains the actual temperature value of target pixel points；
Processor 302 is also used to obtain the actual temperature value of all pixels point in hot spot pixel map, obtains bright temperature figure.
In the embodiment of the present application, three electronic thermometers 201 are installed by three measurement points in pipe detection region,
External apparatus interface 301 can obtain the measurement pixel value and test temperature value of these three measurement points, since DN value can lead to
It crosses linear transformation and is converted to radiance, i.e. Radiance=a*DN+b, and radiance can be by Planck equation by thermal infrared
Radiance image changes into bright temperature image, then an available normalized equation:
Temperature=K2/ln (1/ (a'*DN+b')+1) Temperature=K2/ln(1/(a′*DN+b′)+1)；
Processor 302 can by by three measurement points measurement pixel value (DN) and test temperature value (Temperature),
It brings above-mentioned formula into, can calculate, wherein K_2, a', tri- parameters of b' and K2, the occurrence of three parameters of a ', b ', that
It can obtain temperature temperature transition equation.Processor 302 first obtains hot spot picture after having obtained temperature temperature transition equation
The pixel value of each pixel is updated to temperature temperature transition equation respectively by the pixel value of each pixel in sketch map
In, to calculate the calculating temperature value of each pixel, the calculating temperature value obtained according to pixel value is only according to temperature
Temperature transition equation calculation obtains, then its accuracy just not can guarantee, therefore also needs to carry out certain adjustment, processor
302 choose a pixel as target pixel points, choose the pixel conduct of preset quantity in target pixel points peripheral region
Pixel is adjusted, specifically, can choose the pixel of the 5*5 neighborhood of pixels around target pixel points as adjusting pixel.
Processor 302 carries out mean value computation to the calculating temperature value for calculating temperature value and adjusting pixel of target pixel points, obtains
It is exactly the actual temperature value of target pixel points.Processor 302 obtains the actual temperature value of all pixels point in hot spot pixel map, obtains
Scheme to bright temperature, ensures that the flatness and robustness of entire bright temperature figure in this way.
In the embodiment shown in figure 3 above, processor 302 judges whether pipe detection region occurs according to bright temperature figure
Leakage can specifically be realized by two ways, be illustrated below:
(1), optional, in some embodiments of the present application,
Processor 302 is also used to be schemed according to bright temperature, obtains the actual temperature value of each pixel；
Processor 302 is also used to judge the pixel in bright temperature figure with the presence or absence of actual temperature value more than preset temperature threshold value
Point；
Processor 302, be also used to when in bright temperature figure there are actual temperature value be more than preset temperature threshold value pixel when, really
Determine pipe detection region to leak；
Processor 302 is also used to when pixel of the actual temperature value more than preset temperature threshold value is not present in bright temperature figure,
Determine that pipe detection region does not leak.
(2), optional, in some embodiments of the present application,
Processor 302 is also used to be schemed according to bright temperature, obtains the actual temperature value of each pixel；
Processor 302 is also used to obtain the bright temperature figure of history in record sheet, obtains the historical temperature of each pixel
Value；
Processor 302 is also used to obtain the temperature change of each pixel according to actual temperature value and historical temperature value
Value；
Processor 302 is also used to judge the pixel in bright temperature figure with the presence or absence of temperature change value more than preset change threshold
Point；
Processor 302, be also used to when in bright temperature figure there are temperature change value be more than preset change threshold pixel when, really
Determine pipe detection region to leak；
Processor 302 is also used to when pixel of the temperature change value more than preset change threshold is not present in bright temperature figure,
Determine that pipe detection region does not leak.
The processing mode of processor 302 can detect whether pipe detection region leaks in (1) and (2) above,
And it can determine the position that pipe detection region leaks.
Optionally, as shown in figure 4, in some embodiments of the present application, temperature collector is specially infrared camera 401.
Optionally, as shown in figure 4, in some embodiments of the present application, system further include: image processor 402；
Image processor 402 is connect with the external apparatus interface 301 of infrared camera 401 and server；
Infrared camera 401, specifically for shooting the temperature figure of conduit region；
Image processor 402 is also used to determine the pipe detection region for detection in conduit region；
Image processor 402, is also used to by way of mapping, and the pixel in pipe detection region is calibrated in temperature figure
Position obtains the temperature pixel map in pipe detection region.
In the embodiment of the present application, being due to pipeline leakage checking system master scene to be applied is high-temp liquid in pipeline,
If pipeline leakage, can change in the temperature of conduit region, then getting pipeline by the shooting of infrared camera
The temperature pixel map of detection zone, cheap infrared camera can be obtained by pixel map of the range between 0-255 to indicate
Temperature, therefore, temperature collector have a possibility that realization when using infrared camera 401, since infrared camera 401 is shot
Range be a region, and pipe detection region is not fixed, full conduit region, therefore, infrared camera 401
Need first to shoot the temperature figure of conduit region, image processor 402 determines one section or a certain range region in conduit region
It is detected, referred to as pipe detection region, image processor 402 calibrates pipeline inspection by way of mapping in temperature figure
The location of pixels for surveying region, can obtain the temperature pixel map in pipe detection region.
Optionally, as shown in figure 4, in some embodiments of the present application,
The processor is also used to not generate warning information when judging that pipe detection region does not leak.
Optionally, as shown in figure 5, in some embodiments of the present application, application platform 103 includes:
Alarm device 501, for generating alarm signal according to warning information.
In the embodiment of the present application, application platform 103 can be a user terminal, such as mobile phone, computer etc., can also look forward to
The application system etc. of industry, application platform 103 include alarm device 501, are sent in the processor 303 for receiving server 102
After warning information, 501 signal an alert of alarm device, the effect of alarm signal is the user for prompting application platform 103, pipeline
Detection zone has occurred that leakage, and specific alarm signal can be the voice signal of the types such as buzzing, is also possible to answering
With on the screen of platform with the signal of the color types such as red, can also be the position in entire conduit region in pipe detection region
Confidence breath is shown.
Based on the above embodiments, the pipeline leakage checking system of the application acquires pipeline detection zone by temperature collector
Temperature pixel map judge pipe detection region after temperature pixel map is converted to bright temperature figure by 3 thermometry by server
The case where whether leaking, being accurately obtained pipe leakage, if pipe detection region leaks, server is generated
Warning information, application platform is according to warning information signal an alert, and compared with existing direct detecting method, the application is not necessarily to
It is installed together with pipeline, compared with existing Indirect Detecting Method, the pipeline that can detecte pixel specification of the application is let out
Leakage, high sensitivity.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description,
The specific work process of device and unit, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.
In several embodiments provided herein, it should be understood that disclosed system, device and method can be with
It realizes by another way.For example, the apparatus embodiments described above are merely exemplary, for example, the unit
It divides, only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components
It can be combined or can be integrated into another system, or some features can be ignored or not executed.Another point, it is shown or
The mutual coupling, direct-coupling or communication connection discussed can be through some interfaces, the indirect coupling of device or unit
It closes or communicates to connect, can be electrical property, mechanical or other forms.
Claims (7)
1. a kind of pipeline leakage checking system characterized by comprising
Temperature collector, server and application platform, the temperature collector are connect with the server, the server and institute
State application platform connection；
The temperature collector, for obtaining the temperature pixel map in pipe detection region；
The server is schemed for the temperature pixel map to be converted to bright temperature by 3 thermometry；
The server is also used to judge whether the pipe detection region leaks according to the bright temperature figure；
The server is also used to when judging that the pipe detection region leaks, and generates warning information；
The application platform, for according to the warning information signal an alert；
The system also includes three electronic thermometers, electronic thermometer is installed on the pipe detection region；
The electronic thermometer, for obtaining the measurement pixel value and test temperature value in the pipe detection region；
The server includes:
External apparatus interface and processor；
The external apparatus interface is connect with the temperature collector and the electronic thermometer respectively；
The external apparatus interface, for obtaining the measurement pixel value of three electronic thermometers on the pipe detection region
And test temperature value；
The processor, for temperature temperature transition equation to be calculated according to the measurement pixel value and test temperature value；
The processor is also used to obtain the pixel value of each pixel in the temperature pixel map；
The processor is also used to be obtained according to the pixel value and the temperature temperature transition equation of each pixel
The calculating temperature value of each pixel；
The processor is also used to choose a pixel as target pixel points；
The processor is also used to choose the pixel of preset quantity in the target pixel points peripheral region as adjusting pixel
Point；
The processor, be also used to calculate the target pixel points calculates temperature value and the calculating temperature for adjusting pixel
The average value of value obtains the actual temperature value of the target pixel points；
The processor is also used to obtain the actual temperature value of all pixels point in the temperature pixel map, obtains bright temperature figure.
2. system according to claim 1, which is characterized in that
The processor is also used to be schemed according to the bright temperature, obtains the actual temperature value of each pixel；
The processor is also used to judge the pixel in the bright temperature figure with the presence or absence of actual temperature value more than preset temperature threshold value
Point；
The processor is also used to when there are the pixels that actual temperature value is more than the preset temperature threshold value in the bright temperature figure
When, determine that the pipe detection region leaks；
The processor is also used to when there is no the pixels that actual temperature value is more than the preset temperature threshold value in the bright temperature figure
When point, determine that the pipe detection region does not leak.
3. system according to claim 1, which is characterized in that
The processor is also used to be schemed according to the bright temperature, obtains the actual temperature value of each pixel；
The processor is also used to obtain the bright temperature figure of history in record sheet, obtains the historical temperature value of each pixel；
The processor is also used to obtain the temperature of each pixel according to the actual temperature value and the historical temperature value
Spend changing value；
The processor is also used to judge the pixel in the bright temperature figure with the presence or absence of temperature change value more than preset change threshold
Point；
The processor is also used to when there are the pixels that temperature change value is more than the preset change threshold in the bright temperature figure
When, determine that the pipe detection region leaks；
The processor is also used to when there is no the pixels that temperature change value is more than the preset change threshold in the bright temperature figure
When point, determine that the pipe detection region does not leak.
4. system according to any one of claim 1 to 3, which is characterized in that the temperature collector is infrared photography
Head.
5. system according to claim 4, which is characterized in that the system also includes: image processor；
Described image processor is connect with the external apparatus interface of the infrared camera and the server；
The infrared camera, specifically for shooting the temperature figure of conduit region；
Described image processor is also used to determine the pipe detection region for detection in the conduit region；
Described image processor, is also used to by way of mapping, and the pipe detection region is calibrated in the temperature figure
Location of pixels, obtain the temperature pixel map in the pipe detection region.
6. system according to claim 5, which is characterized in that
The processor is also used to not generate warning information when judging that the pipe detection region does not leak.
7. system according to claim 6, which is characterized in that the application platform includes:
Alarm device, for generating alarm signal according to warning information.
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| CN109900366B (en) * | 2019-03-22 | 2021-05-07 | 国网重庆市电力公司电力科学研究院 | Method and device for detecting abnormal temperature point of lightning arrester |
| CN109827075A (en) * | 2019-04-04 | 2019-05-31 | 常德市鼎城九申管道燃气有限公司 | A kind of method of the contactless remote detection leakage of pair of outdoor aerial gas pipeline |
| FR3097963B1 (en) * | 2019-06-27 | 2021-06-04 | Liebherr Aerospace Toulouse Sas | Monitoring the state of an exchanger in an aircraft air circuit |
| CN112284619B (en) * | 2020-11-06 | 2022-10-14 | 重庆大唐国际彭水水电开发有限公司 | Oil leakage real-time monitoring device and detection method |
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