CN107703209A - Workpiece identification method and detection terminal - Google Patents
Workpiece identification method and detection terminal Download PDFInfo
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- CN107703209A CN107703209A CN201710775873.3A CN201710775873A CN107703209A CN 107703209 A CN107703209 A CN 107703209A CN 201710775873 A CN201710775873 A CN 201710775873A CN 107703209 A CN107703209 A CN 107703209A
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- 238000000034 method Methods 0.000 title claims abstract description 48
- 238000001514 detection method Methods 0.000 title claims abstract description 28
- 230000005284 excitation Effects 0.000 claims description 15
- 241001269238 Data Species 0.000 claims description 12
- 238000012545 processing Methods 0.000 claims description 11
- 230000000644 propagated effect Effects 0.000 claims description 9
- 238000004590 computer program Methods 0.000 claims description 8
- 238000000605 extraction Methods 0.000 claims description 7
- 230000011218 segmentation Effects 0.000 claims description 5
- 239000000463 material Substances 0.000 abstract description 19
- 238000004891 communication Methods 0.000 description 8
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- 238000002604 ultrasonography Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000013480 data collection Methods 0.000 description 3
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- 230000008859 change Effects 0.000 description 2
- 230000002123 temporal effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/04—Analysing solids
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/44—Processing the detected response signal, e.g. electronic circuits specially adapted therefor
- G01N29/4454—Signal recognition, e.g. specific values or portions, signal events, signatures
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
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Abstract
The embodiments of the invention provide a kind of workpiece identification method and detection terminal.This method includes：Obtain the ultrasonic echo that target workpiece returns to workpiece surface from workpiece bottom；The ultrasonic echo of the target workpiece is compared with reference data, the identity corresponding to similarity highest reference data is defined as to the identity of the target workpiece.The embodiment of the present invention, by being analysed and compared to the ultrasonic echo signal that workpiece returns, workpiece identification can be carried out according to the material structure characteristic of workpiece itself, improve the accuracy and reliability of workpiece identification.
Description
Technical field
The present invention relates to technical field of wind power, more particularly to a kind of workpiece identification method and detection terminal.
Background technology
In heavy mechanical equipment (for example, wind power generating set), thousands of workpiece be related to equipment operating and
The safety of operating personnel.Therefore, it is particularly important for having installed inspecting periodically for workpiece (especially crucial workpiece).Right
When having installed workpiece and being checked, because piece count is numerous, plus the own dimensions of workpiece, installation site, mounting means etc.
Factor so that the identification of workpiece turns into a difficult point.
Inventor has found that at least there are the following problems for prior art during the present invention is realized：In the prior art, one
As using ink-jet or laser engraving numbering, paste or the mode such as hang tag distinguishes different workpieces.But sprayed in workpiece surface
Ink or engraving numbering, are easily influenceed by surface contamination and metal rusty stain；And stickup or hang tag, its life and reliability is then
In the presence of certain deficiency.
The content of the invention
The embodiment of the present invention provides a kind of workpiece identification method and detection terminal, to solve to rely on outside mark in the prior art
Note can not be carried out inherently the defects of workpiece identification, realize accurate, reliable workpiece identification.
To reach above-mentioned purpose, the embodiments of the invention provide a kind of workpiece identification method, including：Obtain target workpiece from
Workpiece bottom returns to the ultrasonic echo of workpiece surface；The ultrasonic echo of the target workpiece is compared with reference data
It is right, the identity corresponding to similarity highest reference data is defined as to the identity of the target workpiece.
The embodiment of the present invention additionally provides a kind of detection terminal, including：Echo acquirement module, for obtain target workpiece from
Workpiece bottom returns to the ultrasonic echo of workpiece surface；Data comparing module, for the ultrasonic wave of the target workpiece to be returned
Ripple is compared with reference data, and the identity corresponding to similarity highest reference data is defined as into the target workpiece
Identity.
The embodiment of the present invention additionally provides a kind of computer equipment, including：Memory, for storing computer program；Place
Device is managed, for running the computer program stored in the memory, for：Target workpiece is obtained to return from workpiece bottom
Return to the ultrasonic echo of workpiece surface；The ultrasonic echo of the target workpiece is compared with reference data, will be similar
Identity corresponding to degree highest reference data is defined as the identity of the target workpiece.
The embodiment of the present invention additionally provides a kind of non-transitorycomputer readable storage medium, and being stored thereon with to be processed
The computer program that device performs, the program realize workpiece identification method described above when being executed by processor.
Workpiece identification method and detection terminal provided in an embodiment of the present invention, believed by the ultrasonic echo returned to workpiece
Number analysed and compared, workpiece identification can be carried out according to the material structure characteristic of workpiece itself, improve workpiece identity
The accuracy and reliability of identification.
Described above is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention,
And can be practiced according to the content of specification, and in order to allow above and other objects of the present invention, feature and advantage can
Become apparent, below especially exemplified by the embodiment of the present invention.
Brief description of the drawings
By reading the detailed description of hereafter preferred embodiment, it is various other the advantages of and benefit it is common for this area
Technical staff will be clear understanding.Accompanying drawing is only used for showing the purpose of preferred embodiment, and is not considered as to the application
Limitation.And in whole accompanying drawing, identical part is denoted by the same reference numerals.In the accompanying drawings：
Fig. 1 is the flow chart of workpiece identification method one embodiment provided by the invention；
Fig. 2 is the flow chart of another embodiment of workpiece identification method provided by the invention；
Fig. 3 is the flow chart of another embodiment of workpiece identification method provided by the invention；
Fig. 4 is the flow chart of workpiece identification method further embodiment provided by the invention；
Fig. 5 is the flow chart of workpiece identification method a still further embodiment provided by the invention；
Fig. 6 is the structural representation of detection terminal one embodiment provided by the invention；
Fig. 7 is the structural representation of another embodiment of detection terminal provided by the invention；
Fig. 8 is the structural representation of computer equipment embodiment provided by the invention.
Embodiment
The exemplary embodiment of the disclosure is more fully described below with reference to accompanying drawings.Although the disclosure is shown in accompanying drawing
Exemplary embodiment, it being understood, however, that may be realized in various forms the disclosure without should be by embodiments set forth here
Limited.On the contrary, these embodiments are provided to facilitate a more thoroughly understanding of the present invention, and can be by the scope of the present disclosure
Completely it is communicated to those skilled in the art.
Embodiment one
Fig. 1 is the flow chart of workpiece identification method one embodiment provided by the invention.As shown in figure 1, the present invention is implemented
Example provides a kind of workpiece identification method, and the executive agent of this method can be the detection terminal for carrying out workpiece identification, should
Method can also be performed with detection terminal and database.This method comprises the following steps：
S101, obtain the ultrasonic echo that target workpiece returns to workpiece surface from workpiece bottom.
In embodiments of the present invention, the principle of echo is produced to ultrasonic wave using workpiece, ultrasonic wave is produced in workpiece surface
(for example, ultrasonic piezoelectric can be installed in workpiece surface, encouraged, be allowed to by applying specific voltage to ultrasonic piezoelectric
The ultrasonic wave propagated towards workpiece bottom direction is produced in workpiece surface), and obtain and workpiece surface is returned to by workpiece bottom
(ultrasonic echo reaches workpiece bottom to ultrasonic echo from workpiece surface through inside workpiece structure, then further along bottom
The transmission path of the surface returned to where ultrasonic piezoelectric, ultrasonic wave and ultrasonic echo has run through the whole inside of workpiece
Structure.Because each workpiece has the structure and material characteristic of itself so that the ultrasonic echo of different workpieces has and workpiece
The related characteristic of self-characteristic, the characteristic of this ultrasonic echo can be as the identity identification information of workpiece), by ultrasound
The analyzing and processing of ripple echo, reach the material structure characteristic according to workpiece itself, carry out the purpose of workpiece identification.
Before the mounting, it is necessary first to reference data collection is carried out to each workpiece, generally, at fixed 20 DEG C
At a temperature of carry out reference data collection.The base of workpiece (needing to carry out all workpiece of identification) is obtained by above-mentioned means
Quasi- data, it is each workpiece setting identity (e.g., numbering), the reference data equipped with identity is stored (for example, can
It is stored in concentrating in special database).
When needing to carry out identification to some workpiece, target workpiece (body to be identified is obtained again by above-mentioned means
Part workpiece) ultrasonic echo, the echo-signal is converted into voltage signal.
S102, the ultrasonic echo of target workpiece is compared with reference data, by similarity highest reference data
Corresponding identity is defined as the identity of the target workpiece.
The ultrasonic echo of target workpiece is compared with the reference data being stored in database, obtains similarity highest
Reference data corresponding to identity, be the target workpiece identity.
Workpiece identification method provided in an embodiment of the present invention, by analyzing the ultrasonic echo signal that workpiece returns
Compare, workpiece identification can be carried out according to the material structure characteristic of workpiece itself, improve the accurate of workpiece identification
Degree and reliability.
Embodiment two
Fig. 2 is the flow chart of another embodiment of workpiece identification method provided by the invention.As shown in Fig. 2 in above-mentioned Fig. 1
On the basis of illustrated embodiment, workpiece identification method provided in an embodiment of the present invention may further include following steps：
S201, apply ultrasonic excitation signal to being pre-set at the ultrasonic piezoelectric of workpiece surface of target workpiece,
To produce the ultrasonic wave propagated towards workpiece bottom direction in workpiece surface.
S202, obtain the ultrasonic echo that target workpiece returns to workpiece surface from workpiece bottom.
In embodiments of the present invention, ultrasonic piezoelectric can be installed on target workpiece surface, by ultrasonic piezoresistive material
Material applies specific voltage excitation, is allowed to produce the ultrasonic wave towards the propagation of workpiece bottom direction in workpiece surface, and obtain target
The ultrasonic echo of workpiece.
S203, ultrasonic echo and each reference data being stored in database are entered into Correlation series respectively and calculated.
In embodiments of the present invention, the comparison of the ultrasonic echo of target workpiece and reference data, which operates, to be specially：
Each reference data in the ultrasonic echo and database of target workpiece is entered into Correlation series successively in a manner of traversal
Calculating operation (for example, calculate cross-correlation function maximum of ultrasonic echo and reference data etc.).
S204, the identity corresponding to the maximum reference data of coefficient correlation is defined as to the identity mark of target workpiece
Know.
All coefficient correlations calculated in step S204 are sorted from big to small, obtained maximum coefficient correlation
The identity (numbering) of corresponding reference data is exactly the identity of target workpiece.
Workpiece identification method provided in an embodiment of the present invention, in a manner of traversal by the ultrasonic echo of target workpiece
Enter Correlation series calculating with each reference data being stored in database, so as to obtain the maximum base value of coefficient correlation
According to the identity of corresponding identity, as target workpiece, can be carried out according to the material structure characteristic of workpiece itself
Workpiece identification, improve the accuracy and reliability of workpiece identification.
Embodiment three
Fig. 3 is the flow chart of another embodiment of workpiece identification method provided by the invention.As shown in figure 3, in above-mentioned Fig. 1
On the basis of illustrated embodiment, workpiece identification method provided in an embodiment of the present invention may further include following steps：
S301, apply ultrasonic excitation signal to being pre-set at the ultrasonic piezoelectric of workpiece surface of target workpiece,
To produce the ultrasonic wave propagated towards workpiece bottom direction in workpiece surface.
S302, obtain the ultrasonic echo that target workpiece returns to workpiece surface from workpiece bottom.
In embodiments of the present invention, ultrasonic piezoelectric can be installed on target workpiece surface, by ultrasonic piezoresistive material
Material applies specific voltage excitation, is allowed to produce the ultrasonic wave towards the propagation of workpiece bottom direction in workpiece surface, and obtain target
The ultrasonic echo of workpiece.
S303, by the finger of the designated band of the ultrasonic echo of target workpiece and each reference data being stored in database
Standing wave section is compared.
In embodiments of the present invention, the comparison of ultrasonic echo and reference data, which operates, to be specially：To specified number
According to section, (for example, designated band can preferably represent the inherent characteristic of target workpiece, the inherent characteristic is usually constant or change
Very little) it is compared.
S304, the identity corresponding to similarity highest reference data is defined as to the identity of target workpiece.
For example, the total length for the ultrasonic echo (voltage signal) that detection terminal collects at the scene is 100 μ s, root
2~12 μ s of voltage signal waveform is thought according to experience can represent the inherent characteristic of target workpiece, then detection terminal intercepts
2nd~12 μ s of voltage signal issue database as specified data segment.Database is by its finger with the reference data of storage
Standing wave section (2~12 μ s) is compared, for example, Correlation series calculating can be entered respectively, the maximum reference data of coefficient correlation
Corresponding identity is the identity of target workpiece.
Workpiece identification method provided in an embodiment of the present invention, pass through specifying for the inherent characteristic to target workpiece can be represented
Wave band is compared, and can significantly improve the accuracy of workpiece identification.
Example IV
Fig. 4 is the flow chart of workpiece identification method further embodiment provided by the invention.As shown in figure 4, in above-mentioned Fig. 1
On the basis of illustrated embodiment, workpiece identification method provided in an embodiment of the present invention may further include following steps：
S401, apply ultrasonic excitation signal to being pre-set at the ultrasonic piezoelectric of workpiece surface of target workpiece,
To produce the ultrasonic wave propagated towards workpiece bottom direction in workpiece surface.
S402, obtain the ultrasonic echo that target workpiece returns to workpiece surface from workpiece bottom.
In embodiments of the present invention, ultrasonic piezoelectric can be installed on target workpiece surface, by ultrasonic piezoresistive material
Material applies specific voltage excitation, is allowed to produce the ultrasonic wave towards the propagation of workpiece bottom direction in workpiece surface, and obtain target
The ultrasonic echo of workpiece.
S403, segment processing is carried out to the ultrasonic echo of target workpiece, forms multiple segment datas.
S404, multiple segment datas of target workpiece are segmented with each reference data being stored in database respectively
Compare.
In embodiments of the present invention, the comparison of the ultrasonic echo of target workpiece and reference data, which operates, to be specially：
Segmentation comparison is carried out to ultrasonic echo and reference data.
S405, the identity corresponding to the reference data most by comparison success count is segmented are defined as target workpiece
Identity.
Illustrate, it is assumed that database has gathered and stored in advance reference data (100 voltage letters of 100 workpiece
Number waveform), when to target workpiece carry out collection in worksite obtain ultrasonic echo (voltage signal), segment processing is carried out to it
Afterwards, 5 segment datas (being assumed to be T0, T1, T2, T3 and T4) are obtained.Database is by this 5 segment datas and 100 base values
(calculated for example, Correlation series can be entered according to being compared respectively, when coefficient correlation is more than predetermined threshold value, then regard as comparing
Success), it is assumed that after finishing all comparisons, 3 segment datas (T0, T1, T3), reference data B have been compared successfully in reference data A
It is middle compared successfully 4 segment datas (T1, T2, T3 and T4) ....It is right then to compare the most reference data B institutes of success count
The identity answered is the identity of target workpiece.Further, if in comparison process, the segmentation all with target workpiece is found
Data all compare successful reference data, e.g., compared successfully in reference data C 5 segment datas (T0, T1, T2, T3 and
T4), then can stop comparing, the identity directly by the identity validation corresponding to reference data C for target workpiece.
Workpiece identification method provided in an embodiment of the present invention, then will be each by carrying out segment processing to ultrasonic echo
Individual segment data is compared with reference data, can significantly improve the accuracy of workpiece identification.
Embodiment five
Fig. 5 is the flow chart of workpiece identification method a still further embodiment provided by the invention.As shown in figure 5, in above-mentioned Fig. 1
On the basis of illustrated embodiment, workpiece identification method provided in an embodiment of the present invention may further include following steps：
S501, apply ultrasonic excitation signal to being pre-set at the ultrasonic piezoelectric of workpiece surface of target workpiece,
To produce the ultrasonic wave propagated towards workpiece bottom direction in workpiece surface.
S502, obtain the ultrasonic echo that target workpiece returns to workpiece surface from workpiece bottom.
In embodiments of the present invention, ultrasonic piezoelectric can be installed on target workpiece surface, by ultrasonic piezoresistive material
Material applies specific voltage excitation, is allowed to produce the ultrasonic wave towards the propagation of workpiece bottom direction in workpiece surface, and obtain target
The ultrasonic echo of workpiece.
S503, feature extraction is carried out to the ultrasonic echo of target workpiece, obtains characteristic.
S504, the characteristic of target workpiece and each reference data being stored in database are subjected to characteristic matching.
In embodiments of the present invention, the comparison of the ultrasonic echo of target workpiece and reference data, which operates, to be specially：
Aspect ratio pair is carried out to ultrasonic echo and reference data.Detection terminal can carry out feature to ultrasonic echo (voltage signal)
Extract (time domain, frequency domain, time-frequency domain).For example, temporal signatures can be：It is maximum, minimum value, top value, floors, amplitude, positive and negative
Overshoot, average value, variance, standard deviation, virtual value or mean-square value；Frequency domain character can be：Amplitude versus frequency characte, phase-frequency characteristic, it is concerned with
Function, centre frequency or bandwidth；Or temporal signatures and frequency domain character can be combined.
S505, the identity corresponding to the reference data that the match is successful is defined as to the identity of target workpiece.
In the above embodiment of the present invention, ultrasonic wave reaches workpiece bottom via workpiece surface, through inside workpiece structure
Portion simultaneously finally returns that echo to workpiece surface, the time span undergone, referred to as echo duration.Experiments verify that material of the same race
Material, the workpiece of same size (model), its influence of temperature (Tp) to echo duration (T) is linear.That is, temperature shadow
The propagation velocity of wave of ultrasonic wave in media as well is rung, temperature is higher, and ultrasonic velocity is slower.After temperature change so that ultrasonic echo
In, the crest that should appear in some position is moved forward or rearward.Therefore, when the scene temperature of target workpiece becomes
When changing larger, before the ultrasonic echo of target workpiece is compared with reference data, target workpiece place can be obtained
The temperature data at scene, and ultrasonic echo is modified according to the temperature data.Then by revised ultrasonic echo
It is compared with reference data, the final identity for obtaining target workpiece.
Workpiece identification method provided in an embodiment of the present invention, carried by carrying out feature to the ultrasonic echo of target workpiece
Take, characteristic matching is then carried out with reference data, and temperature-compensating is carried out to ultrasonic echo by scene temperature so that workpiece
The accuracy of identification is higher.
Embodiment six
Fig. 6 is the structural representation of detection terminal one embodiment provided by the invention, can use and perform side as shown in Figure 1
Method step.As shown in fig. 6, the embodiments of the invention provide a kind of detection terminal, including：Echo acquirement module 61 and comparing
Module 62.
Wherein, echo acquirement module 61 is used to obtain the ultrasonic wave time that target workpiece returns to workpiece surface from workpiece bottom
Ripple；Data comparing module 62 is used to the ultrasonic echo of target workpiece being compared with reference data, by similarity highest
Identity corresponding to reference data is defined as the identity of target workpiece.
In embodiments of the present invention, the principle of echo is produced to ultrasonic wave using workpiece, ultrasonic wave is produced in workpiece surface
(for example, ultrasonic piezoelectric can be installed in workpiece surface, it is allowed to by applying specific voltage excitation to ultrasonic piezoelectric
Workpiece surface produces the ultrasonic wave propagated towards workpiece bottom direction), and obtain and the super of workpiece surface is returned to by workpiece bottom
Sound echo, the identity identification information as workpiece.By the analyzing and processing to ultrasonic echo, reach according to workpiece itself
Material structure characteristic, carry out the purpose of workpiece identification.
Before the mounting, it is necessary first to which reference data collection is carried out to each workpiece.Obtaining workpiece by above-mentioned means (needs
Carry out all workpiece of identification) reference data, be each workpiece setting identity (e.g., number), will be furnished with identity mark
The reference data of knowledge is stored and (is stored in for example, can concentrate in special database).
When needing to carry out identification to some workpiece, echo acquirement module 61 obtains target workpiece by above-mentioned means
The ultrasonic echo of (workpiece of identity to be identified), the echo-signal is converted into voltage signal.Data comparing module 62 is by mesh
The ultrasonic echo of mark workpiece compares with the reference data being stored in database, obtains similarity highest reference data institute
Corresponding identity, it is the identity of the target workpiece.
Detection terminal provided in an embodiment of the present invention, analysis ratio is carried out by the ultrasonic echo signal returned to workpiece
It is right, workpiece identification can be carried out according to the material structure characteristic of workpiece itself, improve the accuracy of workpiece identification
And reliability.
Embodiment seven
Fig. 7 is the structural representation of another embodiment of detection terminal provided by the invention.As shown in fig. 7, in above-mentioned Fig. 6
On the basis of illustrated embodiment, Workpiece recognition device provided by the invention can also include：Ultrasonic excitation module 71.The ultrasound
Ripple excitation module 71 can be used for be pre-set at workpiece surface ultrasonic piezoelectric apply ultrasonic excitation signal, with
Workpiece surface produces the ultrasonic wave propagated towards workpiece bottom direction.
Further, the data comparing module 62 in the embodiment of the present invention can include：The He of first comparing unit 621
First identity recognizing unit 622.Wherein, the first comparing unit 621 is used for the ultrasonic echo of target workpiece and storage
Each reference data in database enters Correlation series calculating respectively；First identity recognizing unit 622 is used for coefficient correlation
Identity corresponding to maximum reference data is defined as the identity of target workpiece.
Further, the data comparing module 62 in the embodiment of the present invention can also include：Second comparing unit
623 and second identity recognizing unit 624.Wherein, the second comparing unit 623 is used for the ultrasonic echo of target workpiece
The designated band of each reference data of the designated band with being stored in database is compared；Second identity recognizing unit 624 is used
In the identity that the identity corresponding to similarity highest reference data is defined as to target workpiece.
In addition, the data comparing module 62 in the embodiment of the present invention can also include：Segment processing unit the 625, the 3rd counts
According to comparing unit 626 and tiers e'tat recognition unit 627.Wherein, segment processing unit 625 is used for the ultrasonic wave to target workpiece
Echo carries out segment processing, forms multiple segment datas；3rd comparing unit 626 is used for respectively by the multiple of target workpiece
Segment data carries out segmentation with each reference data being stored in database and compared；Tiers e'tat recognition unit 627 is used to divide
The identity that section is compared corresponding to the most reference data of success count is defined as the identity of target workpiece.
In addition, the data comparing module 62 in the embodiment of the present invention can also include：Feature extraction unit the 628, the 4th counts
According to the identity recognizing unit 6210 of comparing unit 629 and the 4th.Wherein, feature extraction unit 628 is used for the ultrasound to target workpiece
Ripple echo carries out feature extraction, obtains characteristic；4th comparing unit 629 be used for by the characteristic of target workpiece with
Each reference data being stored in database carries out characteristic matching；4th identity recognizing unit 6210 is used for the base that the match is successful
Identity corresponding to quasi- data is defined as the identity of target workpiece.
In addition, detection terminal provided in an embodiment of the present invention can also include：Temperature adjustmemt module 72.The temperature adjustmemt mould
Block 72 is used for before operation is compared in data comparing module 72, obtain target workpiece temperature data at the scene, according to
The temperature data is modified to the ultrasonic echo of target workpiece.
The concrete function of each functional module and unit, which is realized, in the embodiment of the present invention refers to retouching in above method embodiment
State, will not be repeated here.
Detection terminal provided in an embodiment of the present invention, ultrasonic echo and base value by various modes to target workpiece
According to being compared, workpiece identification can be carried out according to the material structure characteristic of workpiece itself, improve workpiece identification
Accuracy and reliability.
Embodiment eight
The built-in function and structure of detection terminal are the foregoing described, the device can be realized as a kind of computer equipment.Fig. 8 is
The structural representation of computer equipment embodiment provided by the invention.As shown in figure 8, the computer equipment includes the He of memory 81
Processor 82.
Memory 81, for storage program.In addition to said procedure, memory 81 is also configured to store other various
Data are to support operation on a computing device.The example of these data includes any for operating on a computing device
The instruction of application program or method, contact data, telephone book data, message, picture, video etc..
Memory 81 can realize by any kind of volatibility or non-volatile memory device or combinations thereof, such as
Static RAM (SRAM), Electrically Erasable Read Only Memory (EEPROM), erasable programmable is read-only to be deposited
Reservoir (EPROM), programmable read only memory (PROM), read-only storage (ROM), magnetic memory, flash memory, disk or
CD.
Processor 82, coupled with memory 81, perform the computer program that memory 81 is stored, for：
Obtain the ultrasonic echo that target workpiece returns to workpiece surface from workpiece bottom；By the ultrasound of the target workpiece
Ripple echo is compared with reference data, and the identity corresponding to similarity highest reference data is defined as into the target
The identity of workpiece.
Further, as shown in figure 8, computer equipment can also include：Communication component 83, power supply module 84, audio-frequency assembly
85th, other components such as display 86.Members are only schematically provided in Fig. 8, are not meant to that computer equipment only includes Fig. 8
Shown component.
Communication component 83 is configured to facilitate the communication of wired or wireless way between computer equipment and other equipment.Meter
The wireless network based on communication standard, such as WiFi, 2G or 3G, or combinations thereof can be accessed by calculating machine equipment.In an example
Property embodiment in, communication component 83 receives broadcast singal from external broadcasting management system via broadcast channel or broadcast is related
Information.In one exemplary embodiment, the communication component 83 also includes near-field communication (NFC) module, to promote junction service.
For example, radio frequency identification (RFID) technology, Infrared Data Association (IrDA) technology, ultra wide band (UWB) skill can be based in NFC module
Art, bluetooth (BT) technology and other technologies are realized.
Power supply module 84, electric power is provided for the various assemblies of computer equipment.Power supply module 84 can include power management
System, one or more power supplys, and other generate, manage and distribute the component that electric power is associated with for computer equipment.
Audio-frequency assembly 85 is configured as output and/or input audio signal.For example, audio-frequency assembly 85 includes a microphone
(MIC), when computer equipment is in operator scheme, during such as call model, logging mode and speech recognition mode, microphone by with
It is set to reception external audio signal.The audio signal received can be further stored in memory 81 or via communication component
83 send.In certain embodiments, audio-frequency assembly 85 also includes a loudspeaker, for exports audio signal.
Display 86 includes screen, and its screen can include liquid crystal display (LCD) and touch panel (TP).If screen
Including touch panel, screen may be implemented as touch-screen, to receive the input signal from user.Touch panel includes one
Or multiple touch sensors are with the gesture on sensing touch, slip and touch panel.The touch sensor can not only sense tactile
Touch or the border of sliding action, but also detect and touched or duration and pressure that slide is related with described.
The embodiment of the present invention also provides a kind of non-transitorycomputer readable storage medium.Being stored with the storage medium can
The computer program being executed by processor, the workpiece described in each embodiment as described above is realized when the program is executed by processor
Recognition methods.
One of ordinary skill in the art will appreciate that：Realizing all or part of step of above-mentioned each method embodiment can lead to
The related hardware of programmed instruction is crossed to complete.Foregoing program can be stored in a computer read/write memory medium.The journey
Sequence upon execution, execution the step of including above-mentioned each method embodiment；And foregoing storage medium includes：ROM, RAM, magnetic disc or
Person's CD etc. is various can be with the medium of store program codes.
Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；To the greatest extent
The present invention is described in detail with reference to foregoing embodiments for pipe, it will be understood by those within the art that：Its according to
The technical scheme described in foregoing embodiments can so be modified, either which part or all technical characteristic are entered
Row equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology
The scope of scheme.
Claims (16)
- A kind of 1. workpiece identification method, it is characterised in that including：Obtain the ultrasonic echo that target workpiece returns to workpiece surface from workpiece bottom；The ultrasonic echo of the target workpiece is compared with reference data, by corresponding to similarity highest reference data Identity be defined as the identity of the target workpiece.
- 2. workpiece identification method according to claim 1, it is characterised in that in the target workpiece that obtains from workpiece bottom Return to before the ultrasonic echo of workpiece surface, in addition to：The ultrasonic piezoelectric of workpiece surface to being pre-set at the target workpiece applies ultrasonic excitation signal, with work Part surface produces the ultrasonic wave propagated towards workpiece bottom direction.
- 3. workpiece identification method according to claim 1, it is characterised in that the ultrasonic wave by the target workpiece returns Ripple is compared with reference data, and the identity corresponding to similarity highest reference data is defined as into the target workpiece Identity, including：The ultrasonic echo of the target workpiece and each reference data being stored in database are subjected to phase relation respectively Number calculates；Identity corresponding to the maximum reference data of coefficient correlation is defined as to the identity of the target workpiece.
- 4. workpiece identification method according to claim 1, it is characterised in that the ultrasonic wave by the target workpiece returns Ripple is compared with reference data, and the identity corresponding to similarity highest reference data is defined as into the target workpiece Identity, including：By the finger of the designated band of the ultrasonic echo of the target workpiece and each reference data being stored in database Standing wave section is compared；Identity corresponding to similarity highest reference data is defined as to the identity of the target workpiece.
- 5. workpiece identification method according to claim 1, it is characterised in that the ultrasonic wave by the target workpiece returns Ripple is compared with reference data, and the identity corresponding to similarity highest reference data is defined as into the target workpiece Identity, including：Segment processing is carried out to the ultrasonic echo of the target workpiece, forms multiple segment datas；Multiple segment datas of the target workpiece and each reference data being stored in database are carried out respectively Segmentation compares；Identity corresponding to the reference data most by comparison success count is segmented is defined as the identity of the target workpiece Mark.
- 6. workpiece identification method according to claim 1, it is characterised in that the ultrasonic wave by the target workpiece returns Ripple is compared with reference data, and the identity corresponding to similarity highest reference data is defined as into the target workpiece Identity, including：Feature extraction is carried out to the ultrasonic echo of the target workpiece, obtains characteristic；The characteristic of the target workpiece and each reference data being stored in database are subjected to characteristic matching；Identity corresponding to the reference data that the match is successful is defined as to the identity of the target workpiece.
- 7. the workpiece identification method according to any claim in claim 1 to 6, it is characterised in that described by institute State target workpiece ultrasonic echo be compared with reference data before, in addition to：Obtain the target workpiece temperature data at the scene；The ultrasonic echo of the target workpiece is modified according to the temperature data.
- 8. a kind of detection terminal, including：Echo acquirement module, the ultrasonic echo of workpiece surface is returned to for obtaining target workpiece from workpiece bottom；Data comparing module, for the ultrasonic echo of the target workpiece to be compared with reference data, by similarity most Identity corresponding to high reference data is defined as the identity of the target workpiece.
- 9. detection terminal according to claim 8, it is characterised in that also include：Ultrasonic excitation module, the ultrasonic piezoelectric for the workpiece surface to being pre-set at the target workpiece apply super Sound wave excitation signal, to produce the ultrasonic wave propagated towards workpiece bottom direction in workpiece surface.
- 10. detection terminal according to claim 8, it is characterised in that the data comparing module includes：First comparing unit, for by the ultrasonic echo of the target workpiece and each base for being stored in database Quasi- data enter Correlation series calculating respectively；First identity recognizing unit, for the identity corresponding to the maximum reference data of coefficient correlation to be defined as into the mesh Mark the identity of workpiece.
- 11. detection terminal according to claim 8, it is characterised in that the data comparing module includes：Second comparing unit, for that the designated band of the ultrasonic echo of the target workpiece and will be stored in database The designated band of each reference data be compared；Second identity recognizing unit, for the identity corresponding to similarity highest reference data to be defined as into the target The identity of workpiece.
- 12. detection terminal according to claim 8, it is characterised in that the data comparing module includes：Segment processing unit, for carrying out segment processing to the ultrasonic echo of the target workpiece, form multiple segment datas；3rd comparing unit, for respectively by multiple segment datas of the target workpiece with being stored in database Each reference data carry out segmentation comparison；Tiers e'tat recognition unit, determined for the identity compared corresponding to the most reference data of success count will to be segmented For the identity of the target workpiece.
- 13. detection terminal according to claim 8, it is characterised in that the data comparing module includes：Feature extraction unit, for carrying out feature extraction to the ultrasonic echo of the target workpiece, obtain characteristic；4th comparing unit, for by the characteristic of the target workpiece and each benchmark for being stored in database Data carry out characteristic matching；4th identity recognizing unit, for the identity corresponding to the reference data that the match is successful to be defined as into the mesh Mark the identity of workpiece.
- 14. the detection terminal according to any claim in claim 8 to 13, it is characterised in that also include：Temperature adjustmemt module, for before operation is compared in the data comparing module, obtaining the target workpiece place The temperature data at scene, is modified according to the temperature data to the ultrasonic echo of the target workpiece.
- A kind of 15. computer equipment, it is characterised in that including：Memory, for storing computer program；Processor, for running the computer program stored in the memory, for：Obtain the ultrasonic echo that target workpiece returns to workpiece surface from workpiece bottom；The ultrasonic echo of the target workpiece is compared with reference data, by corresponding to similarity highest reference data Identity be defined as the identity of the target workpiece.
- 16. a kind of non-transitorycomputer readable storage medium, the computer program that can be executed by processor is stored thereon with, its It is characterised by, the workpiece identification method as described in any in claim 1 to 7 is realized when the program is executed by processor.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109187772A (en) * | 2018-10-29 | 2019-01-11 | 四川升拓检测技术股份有限公司 | It is applied to the method for impact elasticity wave analysis based on speech recognition |
| CN110441397A (en) * | 2018-05-02 | 2019-11-12 | 奥林巴斯株式会社 | The method for making of apparatus for ultrasonic examination, 3D printer device and inference pattern |
| CN111595944A (en) * | 2020-06-02 | 2020-08-28 | 中国铁建重工集团股份有限公司 | Real-time detection method for compactness of perfusion vault |
| CN112162041A (en) * | 2020-09-30 | 2021-01-01 | 陕西师范大学 | Method for identifying metal material based on Gaussian distribution of amplitude root mean square value |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202119912U (en) * | 2011-05-16 | 2012-01-18 | 福建省电力有限公司厦门电业局 | Transmission line identification device based on ultrasonic wave echo characteristics |
| CN103245729A (en) * | 2013-05-14 | 2013-08-14 | 江苏大学 | Detection method and device for internal defects of welding seams |
| CN103926317A (en) * | 2014-04-25 | 2014-07-16 | 上海势华电子科技有限公司 | Method for screening workpieces through ultrasonic wave |
-
2017
- 2017-08-31 CN CN201710775873.3A patent/CN107703209A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202119912U (en) * | 2011-05-16 | 2012-01-18 | 福建省电力有限公司厦门电业局 | Transmission line identification device based on ultrasonic wave echo characteristics |
| CN103245729A (en) * | 2013-05-14 | 2013-08-14 | 江苏大学 | Detection method and device for internal defects of welding seams |
| CN103926317A (en) * | 2014-04-25 | 2014-07-16 | 上海势华电子科技有限公司 | Method for screening workpieces through ultrasonic wave |
Non-Patent Citations (2)
| Title |
|---|
| 夏纪真: "《无损检测导论》", 31 August 2016 * |
| 王广斌等: "《机械故障诊断技术与应用》", 30 April 2014 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110441397A (en) * | 2018-05-02 | 2019-11-12 | 奥林巴斯株式会社 | The method for making of apparatus for ultrasonic examination, 3D printer device and inference pattern |
| CN109187772A (en) * | 2018-10-29 | 2019-01-11 | 四川升拓检测技术股份有限公司 | It is applied to the method for impact elasticity wave analysis based on speech recognition |
| CN111595944A (en) * | 2020-06-02 | 2020-08-28 | 中国铁建重工集团股份有限公司 | Real-time detection method for compactness of perfusion vault |
| CN112162041A (en) * | 2020-09-30 | 2021-01-01 | 陕西师范大学 | Method for identifying metal material based on Gaussian distribution of amplitude root mean square value |
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