CN110319978A - Valve airtightness detection method, device, terminal device and storage medium - Google Patents
Valve airtightness detection method, device, terminal device and storage medium Download PDFInfo
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- CN110319978A CN110319978A CN201810269341.7A CN201810269341A CN110319978A CN 110319978 A CN110319978 A CN 110319978A CN 201810269341 A CN201810269341 A CN 201810269341A CN 110319978 A CN110319978 A CN 110319978A
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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
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Abstract
The invention discloses a kind of valve airtightness detection methods, comprising: generates first frequency signal, and first frequency signal is transmitted to the valvular pipeline of installation, transmit first frequency signal in pipeline；Obtain the second frequency signal exported from pipeline；Analyze the correlation between first frequency signal and second frequency signal；The airtightness of valve is determined according to correlation.The first frequency signal of generation is input in the valvular pipeline of installation and transmits by the present invention, acquisition is acquired to it after first frequency signal passes through valve in pipeline, obtain second frequency signal, the airtightness of pipeline inner valve is then determined by the correlation between analysis first frequency signal and second frequency signal, specific frequency signal is utilized to carry out the detection of valve airtightness, detection accuracy, detection efficiency are greatly improved, while expanding the scope of application of valve airtightness detection.The present invention also provides a kind of valve tightness detector, terminal device and storage mediums.
Description
Technical field
The present invention relates to valve detection technical fields more particularly to a kind of valve airtightness detection method, device, terminal to set
Standby and storage medium.
Background technique
Valve be it is a kind of in the fluid system, for controlling the device of flow direction, pressure, flow, be widely used in oil
With the transmission of gas and water oily in control system etc. in the pipelines such as feed channel, water supply line.And the operation long-term with pipeline, often
It will appear the occurrence of closed situation of valve is deteriorated and causes pipeline leakage, this not only results in serious economic problems, also
It will cause environmental pollution, it could even be possible to personal injury can be brought.
To avoid the occurrence of pipeline leakage, takes and quarter valve airtightness in pipeline is detected accordingly, to mention
Before know healthy hidden danger present in pipeline, take corresponding control measure to avoid or reduce hidden danger in time thus convenient.It is existing
Have in technology, generallys use intelligent sphere or audition leak hunting technology to carry out the detection of valve airtightness, although intelligent sphere, audition
Leak hunting technology can detect the closed implementations of valve to a certain extent, but intelligent sphere, audition leak hunting technology can only often fit
It is simple for pipeline, bury in not deep pipeline, use environment is limited, and the accuracy that detects, efficiency are also not and manage very much
Think.
To sum up, how to improve valve airtightness detects in pipeline accuracy, efficiency and the scope of application becomes this field
Technical staff's urgent problem to be solved.
Summary of the invention
The embodiment of the invention provides a kind of valve airtightness detection method, device, terminal device and storage mediums, can
The airtightness of valve, improves valve airtightness detection efficiency, detection accuracy in accurate detection pipeline, expands the inspection of valve airtightness
The scope of application of survey.
The embodiment of the present invention in a first aspect, providing a kind of valve airtightness detection method, comprising:
First frequency signal is generated, and the first frequency signal is transmitted to the valvular pipeline of installation, makes described the
One frequency signal transmits in the pipeline；
Obtain the second frequency signal exported from the pipeline；
Analyze the correlation between the first frequency signal and the second frequency signal；
The airtightness of the valve is determined according to the correlation.
Optionally, the correlation analyzed between the first frequency signal and the second frequency signal, comprising:
Obtain the first waveform curve of the first frequency signal and the second wavy curve of the second frequency signal；
Calculate the related coefficient between the first waveform curve and second wavy curve；
The correlation between the first frequency signal and the second frequency signal is determined according to the related coefficient.
Preferably, the related coefficient calculated between the first waveform curve and second wavy curve, comprising:
The related coefficient is calculated according to following formula of correlation coefficient:
Wherein, R is related coefficient, and X is the numerical value of data point in second wavy curve,It is bent for second waveform
The mean values of all data points in line, Y are the numerical value of the first waveform curve data point,For the first waveform curve
In all data points mean values.
Preferably, the frequency of the first frequency signal is greater than 0Hz and is less than or equal to 30Hz.
The second aspect of the embodiment of the present invention provides a kind of valve tightness detector, comprising:
Signal transmission module for generating first frequency signal, and the first frequency signal is transmitted to and is equipped with valve
The pipeline of door, transmits the first frequency signal in the pipeline；
Signal acquisition module, for obtaining the second frequency signal exported from the pipeline；
Signal analysis module, for analyzing the correlation between the first frequency signal and the second frequency signal；
Valve airtightness determining module, for determining the airtightness of the valve according to the correlation.
Optionally, the signal analysis module, comprising:
Wavy curve acquiring unit, for obtaining the first waveform curve and the second frequency of the first frequency signal
Second wavy curve of signal；
Related coefficient computing unit is related between the first waveform curve and second wavy curve for calculating
Coefficient；
Correlation determination unit, for determining the first frequency signal and the second frequency according to the related coefficient
Correlation between signal.
Preferably, the related coefficient computing unit is specifically used for calculating the correlation according to following formula of correlation coefficient
Coefficient:
Wherein, R is related coefficient, and X is the numerical value of data point in second wavy curve,It is bent for second waveform
The mean values of all data points in line, Y are the numerical value of the first waveform curve data point,For the first waveform curve
In all data points mean values.
Preferably, the frequency of the first frequency signal is greater than 0Hz and is less than or equal to 30Hz.
The third aspect of the embodiment of the present invention provides a kind of valve airtightness detection terminal device, including memory, place
The computer program managing device and storage in the memory and can running on the processor, the processor execute institute
It is realized when stating computer program as described in aforementioned first aspect the step of valve airtightness detection method.
The fourth aspect of the embodiment of the present invention, provides a kind of computer readable storage medium, described computer-readable to deposit
Storage media is stored with computer program, and the valve as described in aforementioned first aspect is realized when the computer program is executed by processor
The step of airtightness detection method.
As can be seen from the above technical solutions, the embodiment of the present invention has the advantage that
In the embodiment of the present invention, transmitted by the way that the first frequency signal of generation to be transmitted in the valvular pipeline of installation,
And acquisition is acquired to it after the first frequency signal is transmitted through valve in pipeline, to obtain second frequency letter
Number, the closed of pipeline inner valve is then determined by the correlation between analysis first frequency signal and second frequency signal
Property.I.e. in the embodiment of the present invention, the detection of valve airtightness is carried out using analysis set specific frequency signal feature, is greatlyd improve
The detection accuracy of valve airtightness, detection efficiency, while the scope of application of valve airtightness detection has also been enlarged.
Detailed description of the invention
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to embodiment or description of the prior art
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only of the invention some
Embodiment for those of ordinary skill in the art without any creative labor, can also be according to these
Attached drawing obtains other attached drawings.
Fig. 1 is one embodiment flow chart of valve airtightness detection method provided in an embodiment of the present invention；
Fig. 2 is to analyze the first frequency signal and described second in valve airtightness detection method in the embodiment of the present invention
Flow diagram of the correlation steps under an application scenarios between frequency signal；
Structural schematic diagram when Fig. 3 is signal acquisition in valve airtightness detection method provided in an embodiment of the present invention；
Fig. 4 is one embodiment structure chart of valve tightness detector provided in an embodiment of the present invention；
Fig. 5 is the schematic diagram that valve airtightness provided in an embodiment of the present invention detects terminal device.
Specific embodiment
The embodiment of the invention provides a kind of valve airtightness detection method, device, terminal device and computer-readable deposit
Storage media, to improve detection accuracy, the detection efficiency of valve airtightness, expands valve for detecting the airtightness of valve in pipeline
The scope of application of door airtightness detection.
In order to make the invention's purpose, features and advantages of the invention more obvious and easy to understand, below in conjunction with the present invention
Attached drawing in embodiment, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that disclosed below
Embodiment be only a part of the embodiment of the present invention, and not all embodiment.Based on the embodiments of the present invention, this field is general
Logical technical staff all other embodiment obtained without making creative work belongs to what the present invention protected
Range.
Referring to Fig. 1, the embodiment of the invention provides a kind of valve airtightness detection method, the valve airtightness detection
Method includes:
Step S101, first frequency signal is generated, and the first frequency signal is transmitted to the valvular pipeline of installation,
Transmit the first frequency signal in the pipeline.
In real life, water supply line etc. is generally buried in underground, bury in these water supply lines of underground often
The valve of medium transmission in control water supply line is installed, and is then equipped with multiple is connected with groundwater supply pipeline on the ground
Fire hydrant that is logical and being connected with groundwater supply pipeline, that is to say, that have the fire hydrant of connection, fire hydrant in water supply piping system
It can directly fetch water in municipal water supply pipeline after unlatching, the embodiment of the present invention can carry out first frequency signal by means of fire hydrant
Generation and transmission, meanwhile, first frequency signal can be transmitted in pipeline by means of media such as water.
In the embodiment of the present invention, Special fire-fighting bolt sender unit is utilized in the first fire hydrant for being located at valve one end
The first frequency signal is generated, and the first frequency signal is transmitted in water supply line by first fire hydrant,
The first frequency signal can distally be transmitted by media such as water in the water supply line, to pass through in the water supply line
The valve of installation.For example, utilizing Special fire-fighting bolt sender unit to water supply in the first fire hydrant for being located at valve one end
The pressure wave of transmitting specific frequency, the pressure wave can distally pass in the water supply line by media such as water in pipeline
It is defeated, to pass through the valve installed in the water supply line, when the pressure wave passes through the valve, the valve it is closed with
Otherwise will affect the transmission situation of the pressure wave so that can according to pass through the valve before with the pressure after the valve
The situation of change of wave judges the airtightness of the valve.
It is understood that the first frequency signal is known specific frequency letter before transmitting in the embodiment of the present invention
Number, optionally, the frequency of the first frequency signal is greater than 0Hz and is less than or equal to 40Hz.Preferably, the first frequency letter
Number frequency be greater than 0Hz and be less than or equal to 30Hz.
Further, in the embodiment of the present invention, when generating the first frequency signal, while described first is acquired in real time
Frequency signal simultaneously carries out record preservation, to facilitate subsequent progress signal correlation analysis, and improves the accuracy of signal contrast.
Step S102, the second frequency signal exported from the pipeline is obtained.
After the first frequency signal passes through the valve in the pipeline, in the fire hydrant of the valve other end
On the frequency signal after the valve is then acquired using signal pickup assembly, to obtain second frequency signal, to make
The valve can be determined according to the comparative situation between the collected second frequency signal and the first frequency signal by obtaining
The closed situation of door.
Step S103, the correlation between the first frequency signal and the second frequency signal is analyzed.
Be in the embodiment of the present invention by pass through valve after the second frequency signal with pass through valve before described in
First frequency signal does correlation analysis to determine the airtightness of the valve.As shown in Figure 2, in the embodiment of the present invention, really
The fixed first frequency signal is realized with the correlation between the second frequency signal especially by following step:
Step S201, the first waveform curve of the first frequency signal and the second wave of the second frequency signal are obtained
Shape curve；Step S202, the related coefficient between the first waveform curve and second wavy curve is calculated；Step
S203, the correlation between the first frequency signal and the second frequency signal is determined according to the related coefficient.
In step s 201, obtain the first frequency signal first waveform curve and the second frequency signal
Two wavy curves.
Here, in the embodiment of the present invention, institute that the fire hydrant sender unit generates in first fire hydrant
Stating first frequency signal can be specially pressure wave, i.e., pressure wave is input in the pipeline by first fire hydrant.Cause
And in the embodiment of the present invention, when to correlation judgement is carried out between the first frequency signal and the second frequency signal,
It can draw to obtain using the time as abscissa, using pressure as the first waveform curve of ordinate and the second wavy curve.
It specifically, can be described when generating the pressure wave in first fire hydrant to transmit into the pipeline
The first pressure value of the pressure wave is acquired on first fire hydrant in real time, and acquires the pressure in real time on second fire hydrant
Reeb is transmitted through the second pressure value after the valve, is drawn according to single first pressure value collected and the relationship of time
The first waveform curve, and the second waveform song is drawn according to single second pressure value collected and the relationship of time
Line.
It is understood that in the embodiment of the present invention, can by the first pressure value acquired every time and corresponding thereto when
Between be stored in database profession, and the time by the second pressure value acquired every time and corresponding thereto is stored in database profession.It needs
When carrying out correlation analysis, the first pressure value of single acquisition is transferred from database and draws with the corresponding time
One wavy curve, while corresponding second pressure value and correlation time are transferred to draw the second wavy curve.
It further, is the accuracy, the stability that ensure the second frequency signal acquisition, to improve correlation judgement
Accuracy, in the embodiment of the present invention, can near second fire hydrant multi collect second frequency signal, such as carry out two
Secondary, second frequency signal three times acquisition.
In step S202, the related coefficient between the first waveform curve and second wavy curve is calculated.
In the embodiment of the present invention, is influenced to reduce hardware device and sensor nuance bring, improve related coefficient
Calculate accuracy, it is preferable that first average to the numerical value of data point in every group of wavy curve, and with the difference of numerical value and average value
Value does related coefficient calculating as new variable, i.e., calculates the related coefficient according to following formula of correlation coefficient:
Wherein, R is related coefficient, and X is the numerical value of data point in second wavy curve,It is bent for second waveform
The mean values of all data points in line, Y are the numerical value of the first waveform curve data point,For the first waveform curve
In all data points mean values.
As shown in figure 3, the first frequency signal generated in first fire hydrant 300 is worn in the embodiment of the present invention
After crossing the valve 301 in the pipeline, it is preferable that respectively in A acquisition position 302, B acquisition position 303 and C acquisition position 304
Place carries out the acquisition of a second frequency signal, i.e., after the valve 301 that the first frequency signal passes through in the pipeline, into
The acquisition of capable second frequency signal three times, to obtain collected second frequency signal A, B acquisition position at A acquisition position 302
Collected second frequency signal C at collected second frequency signal B and C acquisition position 304 at 303, then, according to
Two frequency signal A draw to obtain the second wavy curve A, according to second frequency signal B draw to obtain the second wavy curve B and according to
Second frequency signal C draws to obtain the second wavy curve C, in turn, obtains described first according to above-mentioned related coefficient calculation formula
The first coefficient R 1 of wavy curve and the second wavy curve A, the first waveform curve and second waveform are bent
The third related coefficient R3 of the second coefficient R 2 of line B and the first waveform curve and the second wavy curve C.
Here, in the embodiment of the present invention, the C acquisition position 304 of the second frequency signal C and the second frequency signal
Without valve between the B acquisition position 303 of B and between the A acquisition position 302 of the second frequency signal A, although
There is valve but valve is full-gear, similarly, the B acquisition position 303 of the second frequency signal B and the second frequency are believed
Without valve between the A acquisition position 302 of number A, although having valve valve is full-gear so that second frequency
For rate signal A when continuing to be transmitted to the B acquisition position and the C acquisition position, signal is interference-free, to ensure the second frequency
The validity of rate signal acquisition.
In step S203, according to the related coefficient determine the first frequency signal and the second frequency signal it
Between correlation.
By above-mentioned related coefficient calculation formula be calculated first coefficient R 1, the second coefficient R 2 and
After third related coefficient R3, final related coefficient can be determined according to the mean value of R1, R2, R3, can also be taken wherein a certain
A correlation coefficient value or certain two correlation coefficient value determine final related coefficient, with according to final related coefficient come
Determine the correlation between the second frequency signal and the first frequency signal.
It is understood that the signal acquisition quality when the first frequency signal is bad, and can not draw to obtain described
When first waveform curve, the 4th related coefficient of the second wavy curve A Yu the second wavy curve B can be directly calculated
The 5th coefficient R 5 of R4, the second wavy curve A and the second wavy curve C, according to coefficient R 4 and R5
It determines final related coefficient, and determines the first frequency signal and the second frequency according to final related coefficient
Correlation between signal.
Specifically, the correlation in the embodiment of the present invention, between the first frequency signal and the second frequency signal
It include: that highly linear is related, conspicuousness is related and minuent is linearly related.When final identified related coefficient ︱ R ︱ is greater than or waits
When the first preset correlation coefficient number threshold value, then it is assumed that be altitude line between the first frequency signal and the second frequency signal
Property it is related；When final identified related coefficient ︱ R ︱ is less than the second preset correlation coefficient number threshold value, then it is assumed that the first frequency
It is low linearly related between signal and the second frequency signal；When final identified related coefficient ︱ R ︱ is greater than or equal to
The second preset correlation coefficient number threshold value and when being less than the first preset correlation coefficient number threshold value, then it is assumed that first frequency letter
It is related for conspicuousness number between the second frequency signal.
Wherein, the first preset correlation coefficient number threshold value, the second preset correlation coefficient number threshold value can be according to pipeline and
The actual conditions of one frequency signal determine, as can determine according to the actual situation the first preset correlation coefficient number threshold value be 0.4, institute
Stating the second preset correlation coefficient number threshold value is 0.7, thus, when final identified related coefficient ︱ R ︱ is greater than or equal to 0.7, then
Think related for highly linear between the first frequency signal and the second frequency signal；When final identified phase relation
When number ︱ R ︱ is less than 0.4, then it is assumed that be low linearly related between the first frequency signal and the second frequency signal；When
Related coefficient ︱ R ︱ determined by final is greater than or equal to 0.4 and when less than 0.7, then it is assumed that the first frequency signal with it is described
It is related for conspicuousness between second frequency signal.
It is understood that in the embodiment of the present invention, between the first frequency signal and the second frequency signal
Correlation can also only include: highly linear correlation and minuent are linearly related, preset correlation coefficient number threshold value can also with only one,
As the preset correlation coefficient number threshold value is determined as 0.4 according to the actual situation, thus, as final identified related coefficient ︱ R ︱
It is when more than or equal to 0.4, then it is believed that related for highly linear between the first frequency signal and the second frequency signal；
And when final identified related coefficient ︱ R ︱ is less than 0.4, then it is believed that the first frequency signal and the second frequency are believed
It is low linearly related between number.
It is understood that above-mentioned acquired three times to the second frequency signal only does schematic view, should not manage
Solution is the limitation to the embodiment of the present invention, and those skilled in the art it is understood that can also only acquire one certainly in the embodiment of the present invention
The secondary second frequency signal, can also acquire twice the second frequency signal, can also acquire three times or more than three times institute certainly
State second frequency signal.
Step S104, the airtightness of the valve is determined according to the correlation.
It is that highly linear is related, conspicuousness is related or low linear phase according to the correlation in the embodiment of the present invention
Close the airtightness to determine the valve.Specifically, when finally determining correlation is highly linear correlation, show across institute
The wavy curve variation for stating the first frequency signal and the second frequency signal before and after valve less, that is, thinks described the
One frequency signal then can determine that the airtightness of the valve is poor essentially across the valve；And the correlation that ought finally determine
Property when being low linearly related, show the first frequency signal before and after the valve and the second frequency signal
Wavy curve difference is more, that is, thinks that the valve hinders the transmission of the first frequency signal, then can determine the valve
Airtightness it is good；It, then can be directly true according to a large amount of history detection datas when finally determining correlation is conspicuousness correlation
The fixed valve be the good perhaps described valve of airtightness be airtightness it is poor at this point, certainly can also by manual inspection or
Other modes further determine that the airtightness of the valve.
In the embodiment of the present invention, transmitted by the way that the first frequency signal of generation to be input in the valvular pipeline of installation,
And acquisition is acquired to it after the first frequency signal is transmitted through valve in pipeline, to obtain second frequency letter
Number, the closed of pipeline inner valve is then determined by the correlation between analysis first frequency signal and second frequency signal
Property.In the embodiment of the present invention, the detection of valve airtightness is carried out using analysis set specific frequency signal feature, i.e., it is special using analysis
The signal characteristic of the first frequency signal of frequency is determined to carry out the detection of valve airtightness, greatly improves valve airtightness
Detection accuracy, detection efficiency, while the scope of application of valve airtightness detection has also been enlarged.
It should be understood that the size of the serial number of each step is not meant that the order of the execution order in above-described embodiment, each process
Execution sequence should be determined by its function and internal logic, the implementation process without coping with the embodiment of the present invention constitutes any limit
It is fixed.
A kind of valve airtightness detection method is essentially described above, a kind of valve airtightness device will be carried out below detailed
Thin description.
Fig. 4 shows valve tightness detector one embodiment structure chart in the embodiment of the present invention, as shown in figure 4,
The valve tightness detector, comprising:
Signal transmission module 401 for generating first frequency signal, and the first frequency signal is transmitted to and is equipped with
The pipeline of valve transmits the first frequency signal in the pipeline；
Signal acquisition module 402, for obtaining the second frequency signal exported from the pipeline；
Signal analysis module 403 is related between the first frequency signal and the second frequency signal for analyzing
Property；
Valve airtightness determining module 404, for determining the airtightness of the valve according to the correlation.
Optionally, the signal analysis module 403, comprising:
Wavy curve acquiring unit, for obtaining the first waveform curve and the second frequency of the first frequency signal
Second wavy curve of signal；
Related coefficient computing unit is related between the first waveform curve and second wavy curve for calculating
Coefficient；
Correlation determination unit, for determining the first frequency signal and the second frequency according to the related coefficient
Correlation between signal.
Preferably, the related coefficient computing unit is specifically used for calculating the correlation according to following formula of correlation coefficient
Coefficient:
Wherein, R is related coefficient, and X is the numerical value of data point in second wavy curve,It is bent for second waveform
The mean values of all data points in line, Y are the numerical value of the first waveform curve data point,For the first waveform curve
In all data points mean values.
Preferably, in the signal emission module 401, the frequency of the first frequency signal be greater than 0Hz and be less than or
Equal to 30Hz.
Fig. 5 is the schematic diagram for the valve airtightness detection terminal device that one embodiment of the invention provides.As shown in figure 5, should
The valve airtightness detection terminal device 500 of embodiment includes: processor 501, memory 502 and is stored in the memory
In 502 and the computer program 503 that can run on the processor 501, such as valve airtightness detect program.The processing
Device 501 realizes the step in above-mentioned each valve airtightness detection method embodiment when executing the computer program 503, such as
Step S101 shown in FIG. 1 to step S104.Alternatively, the processor 501 realized when executing the computer program 503 it is above-mentioned
The function of each module/unit in each Installation practice, such as module shown in Fig. 4 401 is to the function of module 404.
Illustratively, the computer program 503 can be divided into one or more module/units, it is one or
Multiple module/the units of person are stored in the memory 502, and are executed by the processor 501, to complete the present invention.Institute
Stating one or more module/units can be the series of computation machine program instruction section that can complete specific function, the instruction segment
For describing implementation procedure of the computer program 503 in valve airtightness detection terminal device 500.For example, institute
Signal transmission module, signal acquisition module, signal analysis module, valve airtightness can be divided by stating computer program 503
Determining module, each module concrete function are as follows:
Signal transmission module for generating first frequency signal, and the first frequency signal is transmitted to and is equipped with
The pipeline of valve transmits the first frequency signal in the pipeline；
Signal acquisition module, for obtaining the second frequency signal exported from the pipeline；
Signal analysis module, for analyzing the correlation between the first frequency signal and the second frequency signal；
Valve airtightness determining module, for determining the airtightness of the valve according to the correlation.
The valve airtightness detection terminal device 500 can be desktop PC, notebook, palm PC and cloud
Server etc. calculates equipment.The valve airtightness detection terminal device may include, but be not limited only to, processor 501, memory
502.It will be understood by those skilled in the art that Fig. 5 is only the example of valve airtightness detection terminal device 500, do not constitute
Restriction to valve airtightness detection terminal device 500 may include than illustrating more or fewer components, or combination
Certain components or different components, for example, the valve airtightness detection terminal device can also include input-output equipment,
Network access equipment, bus etc..
The processor 501 can be central processing unit (Central Processing Unit, CPU), can also be
Other general processors, digital signal processor (Digital Signal Processor, DSP), specific integrated circuit
(Application Specific Integrated Circuit, ASIC), ready-made programmable gate array (Field-
Programmable Gate Array, FPGA) either other programmable logic device, discrete gate or transistor logic,
Discrete hardware components etc..General processor can be microprocessor or the processor is also possible to any conventional processor
Deng.
The memory 502 can be the internal storage unit of the valve airtightness detection terminal device 500, such as valve
The hard disk or memory of door airtightness detection terminal device 500.The memory 502 is also possible to the valve airtightness detection eventually
The plug-in type hard disk being equipped on the External memory equipment of end equipment 500, such as valve airtightness detection terminal device 500,
Intelligent memory card (Smart Media Card, SMC), secure digital (Secure Digital, SD) card, flash card (Flash
Card) etc..Further, the memory 502 can also both include the inside of valve airtightness detection terminal device 500
Storage unit also includes External memory equipment.The memory 502 is for storing the computer program 503 and the valve
Other programs and data needed for airtightness detects terminal device 500.The memory 502 can be also used for temporarily storing
Data through exporting or will export.
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 the above-described embodiments, it all emphasizes particularly on different fields to the description of each embodiment, is not described in detail or remembers in some embodiment
The part of load may refer to the associated description of other embodiments.
Those of ordinary skill in the art may be aware that each embodiment described in conjunction with the examples disclosed in this document
Module, unit and/or method and step can be realized with the combination of electronic hardware or computer software and electronic hardware.This
A little functions are implemented in hardware or software actually, the specific application and design constraint depending on technical solution.Specially
Industry technical staff can use different methods to achieve the described function each specific application, but this realization is not
It is considered as beyond the scope of this invention.
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.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme
's.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.Above-mentioned integrated list
Member both can take the form of hardware realization, can also realize in the form of software functional units.
If the integrated unit is realized in the form of SFU software functional unit and sells or use as independent product
When, it can store in a computer readable storage medium.Based on this understanding, the present invention realizes above-described embodiment side
All or part of the process in method can also instruct relevant hardware to complete, the computer by computer program
Program can be stored in a computer readable storage medium, and the computer program is when being executed by processor, it can be achieved that above-mentioned each
The step of a embodiment of the method.Wherein, the computer program includes computer program code, and the computer program code can
Think source code form, object identification code form, executable file or certain intermediate forms etc..The computer-readable medium can be with
It include: any entity or device, recording medium, USB flash disk, mobile hard disk, magnetic disk, light that can carry the computer program code
Disk, computer storage, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random
Access Memory), electric carrier signal, telecommunication signal and software distribution medium etc..It should be noted that the computer
The content that readable medium includes can carry out increase and decrease appropriate according to the requirement made laws in jurisdiction with patent practice, such as
It does not include electric carrier signal and telecommunication signal according to legislation and patent practice, computer-readable medium in certain jurisdictions.
The above, the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although referring to before
Stating embodiment, invention is explained in detail, those skilled in the art should understand that: it still can be to preceding
Technical solution documented by each embodiment is stated to modify or equivalent replacement of some of the technical features；And these
It modifies or replaces, the spirit and scope for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution.
Claims (10)
1. a kind of valve airtightness detection method characterized by comprising
First frequency signal is generated, and the first frequency signal is transmitted to the valvular pipeline of installation, makes first frequency
Rate signal transmits in the pipeline；
Obtain the second frequency signal exported from the pipeline；
Analyze the correlation between the first frequency signal and the second frequency signal；
The airtightness of the valve is determined according to the correlation.
2. valve airtightness detection method according to claim 1, which is characterized in that analyze the first frequency signal with
Correlation between the second frequency signal, comprising:
Obtain the first waveform curve of the first frequency signal and the second wavy curve of the second frequency signal；
Calculate the related coefficient between the first waveform curve and second wavy curve；
The correlation between the first frequency signal and the second frequency signal is determined according to the related coefficient.
3. valve airtightness detection method according to claim 2, which is characterized in that described to calculate the first waveform song
Related coefficient between line and second wavy curve, comprising:
The related coefficient is calculated according to following formula of correlation coefficient:
Wherein, R is related coefficient, and X is the numerical value of data point in second wavy curve,For in second wavy curve
The mean values of all data points, Y are the numerical value of the first waveform curve data point,For institute in the first waveform curve
There are the mean values of data point.
4. valve airtightness detection method according to any one of claims 1 to 3, which is characterized in that the first frequency
The frequency of signal is greater than 0Hz and is less than or equal to 30Hz.
5. a kind of valve tightness detector characterized by comprising
Signal transmission module, for generating first frequency signal, and it is valvular that the first frequency signal is transmitted to installation
Pipeline transmits the first frequency signal in the pipeline；
Signal acquisition module, for obtaining the second frequency signal exported from the pipeline；
Signal analysis module, for analyzing the correlation between the first frequency signal and the second frequency signal；
Valve airtightness determining module, for determining the airtightness of the valve according to the correlation.
6. valve tightness detector according to claim 5, which is characterized in that the signal analysis module, comprising:
Wavy curve acquiring unit, for obtaining the first waveform curve and the second frequency signal of the first frequency signal
The second wavy curve；
Related coefficient computing unit, for calculating the phase relation between the first waveform curve and second wavy curve
Number；
Correlation determination unit, for determining the first frequency signal and the second frequency signal according to the related coefficient
Between correlation.
7. valve tightness detector according to claim 6, which is characterized in that the related coefficient computing unit,
Specifically for calculating the related coefficient according to following formula of correlation coefficient:
Wherein, R is related coefficient, and X is the numerical value of data point in second wavy curve,For in second wavy curve
The mean values of all data points, Y are the numerical value of the first waveform curve data point,For institute in the first waveform curve
There are the mean values of data point.
8. valve tightness detector according to any one of claims 5 to 7, which is characterized in that first frequency
The frequency of rate signal is greater than 0Hz and is less than or equal to 30Hz.
9. a kind of valve airtightness detects terminal device, including memory, processor and storage are in the memory and can
The computer program run on the processor, which is characterized in that the processor is realized when executing the computer program
As described in any one of claims 1 to 4 the step of valve airtightness detection method.
10. a kind of computer readable storage medium, the computer-readable recording medium storage has computer program, and feature exists
In realization valve airtightness detection side as described in any one of claims 1 to 4 when the computer program is executed by processor
The step of method.
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