CN107703210A - workpiece identification method and device - Google Patents
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- CN107703210A CN107703210A CN201710775874.8A CN201710775874A CN107703210A CN 107703210 A CN107703210 A CN 107703210A CN 201710775874 A CN201710775874 A CN 201710775874A CN 107703210 A CN107703210 A CN 107703210A
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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
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Abstract
The embodiments of the invention provide a kind of workpiece identification method and device.This method includes：Obtain the ultrasonic echo that each workpiece returns to workpiece surface from workpiece bottom, and identity corresponding to each workpiece；The ultrasonic echo of each workpiece is pre-processed, extracts the reference data for workpiece identification；Based on the reference data, the identity of target workpiece is determined.The embodiment of the present invention to the ultrasonic echo for returning to each workpiece surface by carrying out pretreatment operation, to extract more optimal reference data, to determine the identity of target workpiece in the identification stage, so as to improve the accuracy and efficiency of workpiece identification, 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 device.
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 device, with solve in the prior art by external label without
Method inherently carries out the defects of workpiece identification, realizes accurate, reliable workpiece identification.
To reach above-mentioned purpose, the embodiments of the invention provide a kind of workpiece identification method, including：Each workpiece is obtained from work
Part bottom returns to the ultrasonic echo of workpiece surface, and identity corresponding to each workpiece；To each workpiece
Ultrasonic echo is pre-processed, and extracts the reference data for workpiece identification；Based on the reference data, target work is determined
The identity of part.
The embodiment of the present invention additionally provides a kind of Workpiece recognition device, including：Acquisition module, for obtaining each workpiece from work
Part bottom returns to the ultrasonic echo of workpiece surface, and identity corresponding to each workpiece；Pretreatment module, it is used for
The ultrasonic echo of each workpiece is pre-processed, extracts the reference data for workpiece identification；Identification module,
For based on the reference data, determining the identity of target workpiece.
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：Each workpiece is obtained to return from workpiece bottom
To the ultrasonic echo of workpiece surface, and identity corresponding to each workpiece；To the ultrasonic echo of each workpiece
Pre-processed, extract the reference data for workpiece identification；Based on the reference data, the identity mark of target workpiece is determined
Know.
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 as described above when being executed by processor.
Workpiece identification method and device provided in an embodiment of the present invention, by being returned to the ultrasonic wave for returning to each workpiece surface
Ripple carries out pretreatment operation, to extract more optimal reference data, to determine target workpiece in the identification stage
Identity, so as to improve the accuracy and efficiency of workpiece identification, it can be carried out according to the material structure characteristic of workpiece itself
Workpiece identification, improve the accuracy and reliability of workpiece 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 structural representation of Workpiece recognition device one embodiment provided by the invention；
Fig. 6 is the structural representation of another embodiment of Workpiece recognition device provided by the invention；
Fig. 7 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 Workpiece recognition device, such as detection terminal, also may be used
To be performed with detection terminal and database.This method comprises the following steps：
S101, the ultrasonic echo that each workpiece returns to workpiece surface from workpiece bottom is obtained, and corresponding to each workpiece
Identity.
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 to 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 workpiece is installed, it is necessary first to carry out ultrasonic echo collection to each workpiece, and be each workpiece setting identity
Mark (e.g., is numbered), generally, the collection of ultrasonic echo is carried out at a temperature of fixed 20 DEG C.Pass through above-mentioned hand
Section obtains the ultrasonic echo of workpiece (needing to carry out all workpiece of identification), and the echo-signal is converted into voltage letter
Number.
S102, the ultrasonic echo of each workpiece is pre-processed, extract the reference data for workpiece identification.
In embodiments of the present invention, ultrasonic echo can be carried out being easy to compare the pretreatment operated, extracts and be used for
The reference data of workpiece identification, and the identity of reference data and workpiece is stored (for example, storage can be concentrated together
In special database).
S103, based on said reference data, determine the identity of target workpiece.
When the field data for getting target workpiece (workpiece of identity to be identified), (field data is also by target workpiece
Workpiece bottom return to the ultrasonic echo of workpiece surface) after, based on said reference data, determine the identity mark of target workpiece
Know, for example, the field data of target workpiece and said reference data are compared, it is right to obtain similarity highest reference data institute
The identity answered, it is the identity of the target workpiece.
Workpiece identification method provided in an embodiment of the present invention, by being carried out to the ultrasonic echo for returning to each workpiece surface
Pretreatment operation, to extract more optimal reference data, to determine the identity of target workpiece in the identification stage, from
And the accuracy and efficiency of workpiece identification is improved, workpiece identity can be carried out according to the material structure characteristic of workpiece itself
Identification, improve the accuracy and reliability of workpiece identification.
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, ultrasonic excitation signal is applied to the ultrasonic piezoelectric for being pre-set at workpiece surface, with workpiece table
Face produces the ultrasonic wave propagated towards workpiece bottom direction.
S202, the ultrasonic echo that each workpiece returns to workpiece surface from workpiece bottom is obtained, and corresponding to each workpiece
Identity.
In embodiments of the present invention, ultrasonic piezoelectric can be installed in workpiece surface, by being applied to ultrasonic piezoelectric
Add specific voltage to encourage, be allowed to produce the ultrasonic wave towards the propagation of workpiece bottom direction in workpiece surface.Obtain the super of each workpiece
Sound echo and corresponding identity.
S203, the designated band of ultrasonic echo is intercepted, as reference data.
In embodiments of the present invention, the ultrasonic echo progress pretreatment operation to each workpiece can be specially：To each super
Sound echo carries out interception designated band (for example, designated band can preferably represent the inherent characteristic of workpiece, the inherent characteristic
It is usually constant or vary less) operation.
S204, the designated band of the field data of target workpiece is compared with each reference data.
S205, the identity corresponding to similarity highest reference data is defined as to the identity of target workpiece.
For example, the total length of the ultrasonic echo (voltage signal) for each workpiece that detection terminal collects is both greater than
100 μ s, rule of thumb think that the waveform for pressing 2~12 μ s of signal can represent the inherent characteristic of workpiece, then database is cut
The 2nd~12 μ s of each workpiece ultrasonic echo are taken, are stored as reference data.In the comparing stage, same interception is existing
The specified data segment (the 2nd~12 μ s) of field data is compared, for example, can carry out correlation calculations respectively (e.g., calculates scene
Coefficient correlation or cross-correlation function maximum of data and reference data etc.), corresponding to the reference data of correlation maximum
Identity is the identity of target workpiece.
Workpiece identification method provided in an embodiment of the present invention, the specified ripple of the inherent characteristic of workpiece can be represented by extraction
Duan Zuowei reference datas so that the identification stage is compared using more optimal reference data with field data, can
Significantly improve the accuracy 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, ultrasonic excitation signal is applied to the ultrasonic piezoelectric for being pre-set at workpiece surface, with workpiece table
Face produces the ultrasonic wave propagated towards workpiece bottom direction.
S302, the ultrasonic echo that each workpiece returns to workpiece surface from workpiece bottom is obtained, and corresponding to each workpiece
Identity.
In embodiments of the present invention, ultrasonic piezoelectric can be installed in workpiece surface, by being applied to ultrasonic piezoelectric
Add specific voltage to encourage, be allowed to produce the ultrasonic wave towards the propagation of workpiece bottom direction in workpiece surface.Obtain the super of each workpiece
Sound echo and corresponding identity.
S303, segment processing is carried out to ultrasonic echo, forms the reference data of multiple segmentations.
In embodiments of the present invention, the ultrasonic echo progress pretreatment operation to each workpiece can be specially：To each super
Sound echo carries out segment processing.
S304, multiple segmentations of each reference data are subjected to segmentation with field data respectively and compared.
S305, 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 acquired in advance 100 workpiece ultrasonic echo (100 voltage signals
Waveform), this 100 ultrasonic echos are carried out with segment processing (assuming that each echo is divided into 5 sections), then reference data NiBy 5
Individual segmentation Ni,jComposition, it is segmented Ni,jThe jth section segmentation of i-th of ultrasonic echo is represented, wherein 0≤i≤99,0≤j≤4, i and j
For natural number.And after carrying out segment processing to the field data of target workpiece, obtain 5 segmentations (be assumed to be T0, T1, T2, T3 and
T4).Database by this 5 segmentation respectively with each Ni,jIt is compared (for example, Correlation series calculating, coefficient correlation can be entered
During more than predetermined threshold value, then regard as comparing successfully), it is assumed that after finishing all comparisons, reference data N3It is middle to have compared successfully 3
It is segmented (T0, T1, T3), reference data N5It is middle compared successfully 4 segmentations (T1, T2, T3 and T4) ....Then compare and successfully count
The most reference data N of mesh5Corresponding identity is the identity of target workpiece.Further, if in comparison process, look for
Successful reference data is all compared to all segmentations of target workpiece, e.g., reference data N8It is middle to have compared successfully 5 segmentations
(T0, T1, T2, T3 and T4), then it can stop comparing, directly by reference data N8Corresponding identity validation is target workpiece
Identity.
Workpiece identification method provided in an embodiment of the present invention, it is used as by extracting each segmentation of ultrasonic echo of each workpiece
Reference data so that the identification stage is compared using more optimal reference data with field data, can be 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, ultrasonic excitation signal is applied to the ultrasonic piezoelectric for being pre-set at workpiece surface, with workpiece table
Face produces the ultrasonic wave propagated towards workpiece bottom direction.
S402, the ultrasonic echo that each workpiece returns to workpiece surface from workpiece bottom is obtained, and corresponding to each workpiece
Identity.
In embodiments of the present invention, ultrasonic piezoelectric can be installed in workpiece surface, by being applied to ultrasonic piezoelectric
Add specific voltage to encourage, be allowed to produce the ultrasonic wave towards the propagation of workpiece bottom direction in workpiece surface.Obtain the super of each workpiece
Sound echo and corresponding identity.
S403, feature extraction is carried out to ultrasonic echo, forms reference data.
In embodiments of the present invention, carrying out pretreatment operation to each ultrasonic echo can be specially：Each ultrasonic wave is returned
Ripple carries out feature extraction.Feature extraction (time domain, frequency domain, time-frequency domain) can be carried out to ultrasonic echo (voltage signal).For example,
Temporal signatures can be：Maximum, minimum value, top value, floors, amplitude, positive and negative overshoot, average value, variance, standard deviation, effectively
Value or mean-square value；Frequency domain character can be：Amplitude versus frequency characte, phase-frequency characteristic, coherent function, centre frequency or bandwidth；Or can be with
Temporal signatures and frequency domain character are combined.
S404, each reference data and field data are subjected to characteristic matching.
S405, the identity corresponding to the reference data that the match is successful is defined as to the identity of target workpiece.
In embodiments of the present invention, ultrasonic wave reaches workpiece bottom and most via workpiece surface, through inside workpiece structure
Whole back echo is to workpiece surface, the time span undergone, referred to as echo duration.Experiments verify that same material, same to chi
The workpiece of very little (model), its influence of temperature (Tp) to echo duration (T) is linear.That is, temperature influences ultrasound
The propagation velocity of wave of ripple in media as well, temperature is higher, and ultrasonic velocity is slower.After temperature change so that in ultrasonic echo, originally
The crest that some position should be appeared in is moved forward or rearward.Therefore, when the variation of ambient temperature of workpiece is larger,
While obtaining each workpiece ultrasonic echo, can also obtain each workpiece fiducial temperature data at the scene, and according to benchmark
Temperature data, ultrasonic echo is modified, forms the reference data that can be used in workpiece identification.Then by field data with
The reference data obtained after amendment is compared, for example, enter Correlation series calculating 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, it is used as base by extracting the feature of ultrasonic echo of each workpiece
Quasi- data so that the identification stage carries out characteristic matching using more optimal reference data and field data, and according to base
Quasi- temperature data carries out temperature-compensating to ultrasonic echo so that the accuracy of workpiece identification is higher.
Embodiment five
Fig. 5 is the structural representation of Workpiece recognition device one embodiment provided by the invention, can use and perform as shown in Figure 1
Method and step.As shown in figure 5, the embodiments of the invention provide Workpiece recognition device, including：Acquisition module 51, pretreatment mould
Block 52 and identification module 53.
Wherein, acquisition module 51 is used to obtain the ultrasonic echo that each workpiece returns to workpiece surface from workpiece bottom, with
And identity corresponding to each workpiece；Pretreatment module 52 is used to pre-process the ultrasonic echo of each workpiece, extracts
Reference data for workpiece identification；Identification module 53 is used to be based on said reference data, determines the identity of target workpiece
Mark.
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 workpiece is installed, it is necessary first to carry out ultrasonic echo collection to each workpiece, and be each workpiece setting identity
Mark (e.g., is numbered).Acquisition module 51 obtains the super of workpiece (needing to carry out all workpiece of identification) by above-mentioned means
Sound echo, the echo-signal is converted into voltage signal.Pretreatment module 52 carries out being easy to compare grasping to each ultrasonic echo
The pretreatment of work.
When the field data for getting target workpiece (workpiece of identity to be identified), (field data is also by target workpiece
Workpiece bottom return to the ultrasonic echo of workpiece surface) after, identification module 53 is based on said reference data, determines mesh
The identity of workpiece is marked, for example, the field data of target workpiece and said reference data are compared, obtains similarity highest
Reference data corresponding to identity, be the target workpiece identity.
Workpiece recognition device provided in an embodiment of the present invention, by being carried out to the ultrasonic echo for returning to each workpiece surface
Pretreatment operation, to extract more optimal reference data, to determine the identity of target workpiece in the identification stage, from
And the accuracy and efficiency of workpiece identification is improved, workpiece identity can be carried out according to the material structure characteristic of workpiece itself
Identification, improve the accuracy and reliability of workpiece identification.
Embodiment six
Fig. 6 is the structural representation of another embodiment of Workpiece recognition device provided by the invention.As shown in fig. 6, upper
On the basis of stating embodiment illustrated in fig. 5, Workpiece recognition device provided by the invention can also include：Ultrasonic excitation module 61.
The ultrasonic excitation module 61 can be used for applying ultrasonic excitation letter to the ultrasonic piezoelectric for being pre-set at workpiece surface
Number, to produce the ultrasonic wave propagated towards workpiece bottom direction in workpiece surface.
Further, the pretreatment module 52 in the embodiment of the present invention can include：Interception unit 521.The interception unit
521 designated band for intercepting ultrasonic echo, as reference data；Now, identification module 53 can include：First
The determining unit 532 of comparing unit 531 and first.Wherein, the first comparing unit 531 is used for the finger of the field data of target workpiece
Standing wave section is compared with the designated band of each reference data；First determining unit 532 can be used for similarity highest base
Identity corresponding to quasi- data is defined as the identity of target workpiece.
Further, the pretreatment module 52 in the embodiment of the present invention can also include：Segment processing unit 522.Should
Segment processing unit 522 is used to carry out segment processing to ultrasonic echo, forms the reference data of multiple segmentations；Now, identity
Identification module 53 can include：Second comparing unit 533 and the second determining unit 534.Wherein, the second comparing unit 533 can be with
Compared for multiple segmentations of each reference data to be carried out into segmentation with field data respectively；Second determining unit 534 can be used
It is defined as the identity of target workpiece in the identity corresponding to the reference data most by comparison success count is segmented.
In addition, the pretreatment module 52 in the embodiment of the present invention can also include：Feature extraction unit 523.This feature carries
Take unit 523 to be used to carry out feature extraction to ultrasonic echo, form reference data；Now, identification module 53 can wrap
Include：The determining unit 536 of characteristic matching unit 535 and the 3rd.Wherein, characteristic matching unit 535 can be used for each reference data
Characteristic matching is carried out with field data；3rd determining unit 536 is used for the identity mark corresponding to the reference data that the match is successful
Know the identity for being defined as target workpiece.
In addition, in embodiments of the present invention, acquisition module 51 can be also used for, returned obtaining each workpiece from workpiece bottom
To workpiece surface ultrasonic echo when, obtain each workpiece fiducial temperature data at the scene；And pretreatment module 52 is then used
Echo is modified in the scene temperature data according to target workpiece and said reference temperature data, formed for workpiece identification
Reference data.
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.
Workpiece recognition device provided in an embodiment of the present invention, by carrying out pretreatment behaviour to the ultrasonic echo of each workpiece
Make, extract more optimal reference data so that the identification stage is compared using reference data with field data, is carried
The high accuracy and efficiency of comparing, can carry out workpiece identification according to the material structure characteristic of workpiece itself, carry
The high accuracy and reliability of workpiece identification.
Embodiment seven
The built-in function and structure of Workpiece recognition device are the foregoing described, the device can be realized as a kind of computer equipment.
Fig. 7 is the structural representation of computer equipment embodiment provided by the invention.As shown in fig. 7, the computer equipment includes storage
Device 71 and processor 72.
Memory 71, for storage program.In addition to said procedure, memory 71 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 71 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 72, coupled with memory 71, perform the computer program that memory 71 is stored, for：
Obtain the ultrasonic echo that each workpiece returns to workpiece surface from workpiece bottom, and identity mark corresponding to each workpiece
Know；The ultrasonic echo of each workpiece is pre-processed, extracts the reference data for workpiece identification；Based on reference data,
Determine the identity of target workpiece.
Further, as shown in fig. 7, computer equipment can also include：Communication component 73, power supply module 74, audio-frequency assembly
75th, other components such as display 76.Members are only schematically provided in Fig. 7, are not meant to that computer equipment only includes Fig. 7
Shown component.
Communication component 73 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 73 receives broadcast singal from external broadcasting management system via broadcast channel or broadcast is related
Information.In one exemplary embodiment, the communication component 73 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 74, electric power is provided for the various assemblies of computer equipment.Power supply module 74 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 75 is configured as output and/or input audio signal.For example, audio-frequency assembly 75 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 71 or via communication component
73 send.In certain embodiments, audio-frequency assembly 75 also includes a loudspeaker, for exports audio signal.
Display 76 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 (14)
- A kind of 1. workpiece identification method, it is characterised in that including：Obtain the ultrasonic echo that each workpiece returns to workpiece surface from workpiece bottom, and identity mark corresponding to each workpiece Know；The ultrasonic echo of each workpiece is pre-processed, extracts the reference data for workpiece identification；Based on the reference data, the identity of target workpiece is determined.
- 2. workpiece identification method according to claim 1, it is characterised in that returned in each workpiece of acquisition from workpiece bottom Return to before the ultrasonic echo of workpiece surface, in addition to：Ultrasonic excitation signal is applied to the ultrasonic piezoelectric for being pre-set at workpiece surface, to produce direction in workpiece surface The ultrasonic wave that workpiece bottom direction is propagated.
- 3. workpiece identification method according to claim 1, it is characterised in thatThe ultrasonic echo to each workpiece pre-processes, and extracts the reference data for workpiece identification, including：The designated band of the ultrasonic echo is intercepted, as the reference data；It is described to be based on the reference data, the identity of target workpiece is determined, including：The designated band of the field data of the target workpiece is compared with each reference data；Identity corresponding to similarity highest reference data is defined as to the identity of the target workpiece.
- 4. workpiece identification method according to claim 1, it is characterised in thatThe ultrasonic echo to each workpiece pre-processes, and extracts the reference data for workpiece identification, including：Segment processing is carried out to the ultrasonic echo, forms the reference data of multiple segmentations；It is described to be based on the reference data, the identity of target workpiece is determined, including：Multiple segmentations of each reference data are carried out into segmentation with the field data respectively to compare；Identity corresponding to the reference data most by comparison success count is segmented is defined as the identity of the target workpiece Mark.
- 5. workpiece identification method according to claim 1, it is characterised in thatThe ultrasonic echo to each workpiece pre-processes, and extracts the reference data for workpiece identification, including：Feature extraction is carried out to the ultrasonic echo, forms the reference data；It is described to be based on the reference data, the identity of target workpiece is determined, including：Each reference data and the field data 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.
- 6. the workpiece identification method according to any claim in claim 1 to 5, it is characterised in that described in execution When obtaining the step for the ultrasonic echo that each workpiece returns to workpiece surface from workpiece bottom, in addition to：Obtain each workpiece fiducial temperature data at the scene；The ultrasonic echo to each workpiece pre-processes, and extracts the reference data for workpiece identification, including：The ultrasonic echo is modified according to the fiducial temperature data, forms the reference data.
- 7. a kind of Workpiece recognition device, including：Acquisition module, the ultrasonic echo of workpiece surface, and each work are returned to for obtaining each workpiece from workpiece bottom Identity corresponding to part；Pretreatment module, for being pre-processed to the ultrasonic echo of each workpiece, extract the base for workpiece identification Quasi- data；Identification module, for based on the reference data, determining the identity of target workpiece.
- 8. Workpiece recognition device according to claim 7, it is characterised in that also include：Ultrasonic excitation module, for applying ultrasonic excitation signal to the ultrasonic piezoelectric for being pre-set at workpiece surface, To produce the ultrasonic wave propagated towards workpiece bottom direction in workpiece surface.
- 9. Workpiece recognition device according to claim 7, it is characterised in thatThe pretreatment module includes：Interception unit, for intercepting the designated band of the ultrasonic echo, as the reference data；The identification module includes：First comparing unit, for the designated band of the field data of the target workpiece and each reference data to be compared It is right；First determining unit, for the identity corresponding to similarity highest reference data to be defined as into the target workpiece Identity.
- 10. Workpiece recognition device according to claim 7, it is characterised in thatThe pretreatment module includes：Segment processing unit, for carrying out segment processing to the ultrasonic echo, form the reference data of multiple segmentations；The identification module includes：Second comparing unit, for multiple segmentations of each reference data and the field data to be carried out into segmentation ratio respectively It is right；Second determining unit, it is defined as institute for the identity compared corresponding to the most reference data of success count will to be segmented State the identity of target workpiece.
- 11. Workpiece recognition device according to claim 7, it is characterised in thatThe pretreatment module includes：Feature extraction unit, for carrying out feature extraction to the ultrasonic echo, form the reference data；The identification module includes：Characteristic matching unit, for each reference data and the field data to be carried out into characteristic matching；3rd determining unit, for the identity corresponding to the reference data that the match is successful to be defined as into the target work The identity of part.
- 12. the Workpiece recognition device according to any claim in claim 7 to 11, it is characterised in thatThe acquisition module is additionally operable to, and when each workpiece of acquisition returns to the ultrasonic echo of workpiece surface from workpiece bottom, is obtained Take each workpiece fiducial temperature data at the scene；The pretreatment module is additionally operable to, and the ultrasonic echo is modified according to the fiducial temperature data, forms institute State reference data.
- A kind of 13. 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 each workpiece returns to workpiece surface from workpiece bottom, and identity mark corresponding to each workpiece Know；The ultrasonic echo of each workpiece is pre-processed, extracts the reference data for workpiece identification；Based on the reference data, the identity of target workpiece is determined.
- 14. 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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| CN201710775874.8A CN107703210A (en) | 2017-08-31 | 2017-08-31 | workpiece identification method and device |
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