CN107478155A - Product inspection method, apparatus and system - Google Patents
Product inspection method, apparatus and system Download PDFInfo
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- CN107478155A CN107478155A CN201710732580.7A CN201710732580A CN107478155A CN 107478155 A CN107478155 A CN 107478155A CN 201710732580 A CN201710732580 A CN 201710732580A CN 107478155 A CN107478155 A CN 107478155A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
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Abstract
The invention provides a kind of product inspection method, apparatus and system, wherein methods described includes：Obtain the product image that image collecting device gathers when the detection platform of fixation product to be measured is moved to each predeterminated position, each corresponding at least product image of predeterminated position；Determine in every product image image distance between the first coordinate of fisrt feature, the second coordinate of second feature and first coordinate and second coordinate；According to the corresponding relation between default image distance and actual range, calculate and the corresponding actual range of described image distance；Testing result is determined according to the actual range and default Product checking scope, has reached simplified Product checking process, the technique effect for shortening detection time, improving detection efficiency.
Description
Technical field
The present invention relates to detection technique field, more particularly, to a kind of product inspection method, apparatus and system.
Background technology
Quality Detection is also known as quality testing, refers in process of production, with various detection means, including organoleptic detection,
The modes such as chemical detection, Instrumental Analysis, physical testing, microbiologic inhibition tests, quality, rule are carried out to the product to be detected of production
Lattice, grade etc. detect, and determine whether product to be detected meets defined process.
At present, when being detected to the size of product, the camera typically moved by position gathers the platform of fixed position
The product image of upper product to be measured, still, in actual applications, camera is in moving process, it may occur that rocks, loses image
Very, and then it can not accurately be determined the actual range of any point-to-point transmission on product, it is necessary to which testing staff adopts again manually according to image
Collect image, operation is comparatively laborious time-consuming, reduces detection efficiency.
The content of the invention
In view of this, it is an object of the invention to provide a kind of product inspection method, apparatus and system, to alleviate existing skill
Technical problem time-consuming, detection efficiency is low cumbersome to product size detection process present in art.
In a first aspect, the embodiments of the invention provide a kind of product inspection method, methods described includes：
Obtain the production that image collecting device gathers when the detection platform of fixation product to be measured is moved to each predeterminated position
Product image, the corresponding at least product image of each predeterminated position；
Determine the first coordinate of fisrt feature in every product image, the second coordinate of second feature and described
Image distance between one coordinate and second coordinate；
According to the corresponding relation between default image distance and actual range, calculate corresponding with described image distance real
Border distance；
Testing result is determined according to the actual range and default Product checking scope.
With reference in a first aspect, the embodiments of the invention provide the possible embodiment of the first of first aspect, wherein, institute
State and obtain the product image that image collecting device gathers when the detection platform of fixation product to be measured is moved to each predeterminated position,
Including：
Control drive mechanism drives the detection platform to be moved to predeterminated position along default guide rail；
When receiving the feedback signal that the sensing device for being arranged at the predeterminated position is sent, control described image collection
Device gathers product image, is finished until the product image of multiple predeterminated positions all gathers.
With reference in a first aspect, the embodiments of the invention provide the possible embodiment of second of first aspect, wherein, institute
Stating method also includes：
Before product to be measured is measured, mark that control described image harvester multi collect is fixed in the detection platform
The scaling board image of fixed board, position and angle of the scaling board in the detection platform in the scaling board image gathered every time
It is different；
Determine the preset calibrations position in the scaling board image；
When by the scaling board image scaling to it is identical with the actual size of the scaling board after, according to the preset calibrations
Position is demarcated to described image harvester.
With reference in a first aspect, the embodiments of the invention provide the possible embodiment of the third of first aspect, wherein, institute
Stating method also includes：
Control drive mechanism drives the detection platform for being fixed with demarcation thing to be moved to predeterminated position along default guide rail；
When receiving the feedback signal that the sensing device for being arranged at the predeterminated position is sent, control described image collection
Device gathers reference object image；
Determine that the pixel coordinate of predeterminated position and the demarcation thing are in default space coordinates in the reference object image
Space coordinates in system；
Determine each calibration point position and any two described in image distance between calibration point；
According to the pixel coordinate and the space coordinates, the corresponding relation between image distance and actual range is determined.
With reference in a first aspect, the embodiments of the invention provide the possible embodiment of the 4th of first aspect kind, wherein, institute
State and testing result is determined according to the actual range and default Product checking scope, including：
When the actual range is located in the range of the Product checking, determine that the Product checking to be measured is qualified；
When the actual range is located at outside the Product checking scope, determine that the Product checking to be measured is unqualified.
Second aspect, the embodiment of the present invention also provide a kind of product detection device, and described device includes：
Acquisition module, each default position is moved in the detection platform of fixation product to be measured for obtaining image collecting device
The product image gathered when putting, the corresponding at least product image of each predeterminated position；
First determining module, for determining the first coordinate of fisrt feature in every product image, second feature
Image distance between second coordinate and first coordinate and second coordinate；
Computing module, for according to the corresponding relation between default image distance and actual range, calculating and the figure
Image distance is from corresponding actual range；
Second determining module, for determining testing result according to the actual range and default Product checking scope.
With reference to second aspect, the embodiments of the invention provide the possible embodiment of the first of second aspect, wherein, institute
Acquisition module is stated to be additionally operable to：
Control drive mechanism drives the detection platform to be moved to predeterminated position along default guide rail；
When receiving the feedback signal that the sensing device for being arranged at the predeterminated position is sent, control described image collection
Device gathers product image, is finished until the product image of multiple predeterminated positions all gathers.
With reference to second aspect, the embodiments of the invention provide the possible embodiment of second of second aspect, wherein, institute
Stating device also includes：
First control module, for before product to be measured is measured, control described image harvester multi collect to be fixed on
The scaling board image of scaling board in the detection platform, scaling board is in the detection in the scaling board image gathered every time
Position and angle on platform is different；
3rd determining module, for determining the preset calibrations position in the scaling board image；
Demarcating module, for when by the scaling board image scaling to it is identical with the actual size of the scaling board after, root
Described image harvester is demarcated according to the preset calibrations position.
With reference to second aspect, the embodiments of the invention provide the possible embodiment of the third of second aspect, wherein, institute
Stating device also includes：
Second control module, the detection platform that demarcation thing is fixed with for controlling drive mechanism to drive move along default guide rail
To predeterminated position；
3rd control module, for when the feedback signal for receiving the sensing device for being arranged at predeterminated position transmission
When, control described image harvester collection reference object image；
4th determining module, for determining the pixel coordinate of predeterminated position and the demarcation thing in the reference object image
Space coordinates in default space coordinates；
5th determining module, for determine each calibration point position and any two described in image between calibration point away from
From；
6th determining module, for according to the pixel coordinate and the space coordinates, determine image distance with it is actual away from
Corresponding relation between.
The third aspect, the embodiment of the present invention additionally provide a kind of products detection system, including：Image collecting device, driving
Mechanism, detection platform and control module；
Described image harvester, for gathering the image in image acquisition region according to the control of the control module,
And described image is sent to the control module；
The drive mechanism, for driving the detection platform to move according to the control of the control module；
The control module, it is moved to for obtaining image collecting device in the detection platform of fixation product to be measured each pre-
If the product image gathered during position, the corresponding at least product image of each predeterminated position；Determine every product image
Image between first coordinate of middle fisrt feature, the second coordinate of second feature and first coordinate and second coordinate
Distance；According to the corresponding relation between default image distance and actual range, calculate corresponding with described image distance actual
Distance；And testing result is determined according to the actual range and default Product checking scope.
The embodiment of the present invention brings following beneficial effect：The embodiment of the present invention is existed by obtaining image collecting device first
The detection platform of fixed product to be measured is moved to the product image gathered during each predeterminated position, and each predeterminated position is corresponding at least
One product image；It is then determined that the first coordinate of fisrt feature, the second coordinate of second feature in every product image
And image distance between first coordinate and second coordinate；Further according between default image distance and actual range
Corresponding relation, calculate with described image apart from corresponding actual range；Finally according to the actual range and default product
Detection range determines testing result.
The embodiment of the present invention by the detection platform for being fixed with product to be detected by being moved to predeterminated position, by IMAQ
Device is acquired to the image of the product to be detected of the predeterminated position, is carrying out the multiple IMAQ to multiple predeterminated positions
During do not need mobile image acquisition device, avoid due to image collecting device rock cause image fault, measurement
As a result the problem of inaccurate, meanwhile, testing staff is it also avoid because above mentioned problem resurveys image, province simple to operate manually
When, detection efficiency also further improves.
Other features and advantages of the present invention will illustrate in the following description, also, partly become from specification
Obtain it is clear that or being understood by implementing the present invention.The purpose of the present invention and other advantages are in specification, claims
And specifically noted structure is realized and obtained in accompanying drawing.
To enable the above objects, features and advantages of the present invention to become apparent, preferred embodiment cited below particularly, and coordinate
Appended accompanying drawing, is described in detail below.
Brief description of the drawings
, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical scheme of the prior art
The required accompanying drawing used is briefly described in embodiment or description of the prior art, it should be apparent that, in describing below
Accompanying drawing is some embodiments of the present invention, for those of ordinary skill in the art, before creative work is not paid
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of flow chart of product inspection method provided in an embodiment of the present invention；
Fig. 2 is the flow chart of another product inspection method provided in an embodiment of the present invention；
Fig. 3 is the flow chart of another product inspection method provided in an embodiment of the present invention；
Fig. 4 is a kind of schematic diagram of product detection device provided in an embodiment of the present invention；
Fig. 5 is a kind of schematic diagram of products detection system provided in an embodiment of the present invention.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with accompanying drawing to the present invention
Technical scheme be clearly and completely described, it is clear that described embodiment is part of the embodiment of the present invention, rather than
Whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, belongs to the scope of protection of the invention.
It is cumbersome to the detection process of product at present it is time-consuming, measurement efficiency is low, based on this, one kind provided in an embodiment of the present invention
Product inspection method, apparatus and system, detection process can be simplified, improve detection efficiency.
For ease of understanding the present embodiment, a kind of product inspection method disclosed in the embodiment of the present invention is entered first
Row is discussed in detail, and Fig. 1 is a kind of product inspection method provided in an embodiment of the present invention.As shown in figure 1, product inspection method can be with
Comprise the following steps：
Step S101, image collecting device is obtained when the detection platform of fixation product to be measured is moved to each predeterminated position
The product image of collection, the corresponding at least product image of each predeterminated position.
Specifically, when being detected to product to be measured, product to be measured is fixed in detection platform, it is fixed to make
Image collecting device can obtain product different parts to be measured, the image of different angle, multiple predeterminated positions are set in advance, made
The detection platform for being fixed with product to be detected is moved to predeterminated position, and image collecting device is respectively to the product of each predeterminated position
IMAQ is carried out, image collecting device can be camera or with other electronic equipments of image collecting function.
In order to which the process is more clearly explained, this is illustrated exemplified by sentencing three predeterminated positions of setting, by three default positions
Put and be denoted as the first predeterminated position, the second predeterminated position and the 3rd predeterminated position respectively, the inspection of product to be detected will be fixed with first
Survey platform and be moved to the first predeterminated position, the product image of the predeterminated position of image acquisition device first, the first predeterminated position
IMAQ complete after, detection platform is moved to the second predeterminated position, image collecting device gathers the second default position again
The product image put, after the IMAQ completion of the second predeterminated position, detection platform is moved to the 3rd predeterminated position, image
Harvester gathers the product image of the 3rd predeterminated position.In order to improve the accuracy of testing result, image collecting device is to every
One predeterminated position carries out IMAQ at least once.
Exemplary, image collecting device is obtained in the step S101 and is moved in the detection platform of fixation product to be measured
The product image gathered during each predeterminated position may comprise steps of：
1) drive mechanism is controlled to drive the detection platform to be moved to predeterminated position along default guide rail.
2) when receiving the feedback signal that the sensing device for being arranged at the predeterminated position is sent, control described image is adopted
Acquisition means gather product image, are finished until the product image of multiple predeterminated positions all gathers.
Specifically, product to be measured is fixed on after detection platform, detection platform is driven along in advance by controlling drive mechanism
If track moves, when detection platform is moved to the first predeterminated position, can be sent instead positioned at the sensing device of the first predeterminated position
Feedback signal, and then control the product image of the predeterminated position of image acquisition device first, the IMAQ of the first predeterminated position
After completion, drive mechanism is controlled to drive detection platform to be moved along predetermined trajectory, when detection platform is moved to the second default position
When putting, feedback signal can be sent positioned at the sensing device of the second predeterminated position, and then control image acquisition device second pre-
If the product image of position, after the IMAQ completion of the second predeterminated position, drive mechanism is controlled to drive detection platform edge
Predetermined trajectory is moved, and when detection platform is moved to three predeterminated positions, the sensing device positioned at the 3rd predeterminated position can be sent
Feedback signal, and then control the product image of the predeterminated position of image acquisition device the 3rd.
Step S102, determine the first coordinate of fisrt feature, the second coordinate of second feature in every product image
And image distance between first coordinate and second coordinate.
Specifically, characteristics of image is the graphics feature that possesses of image in itself, including gray value, rate of change, figure away from and
Dimension of picture etc., fisrt feature and second feature described in the present embodiment are the size characteristic of product image.For every product
Image, two characteristic points are chosen, are denoted as fisrt feature and second feature, by signature analysis, obtain fisrt feature first sits
Mark (X1, Y1), the second coordinate (X2, Y2) of second feature, the image distance d between the first coordinate and the second coordinate can be with table
It is shown as：
Step S103, according to the corresponding relation between default image distance and actual range, calculate with described image away from
From corresponding actual range.
Exemplary, if the corresponding relation between default image distance D and actual range L is：
L=AD (1)
Wherein, A is the function of the camera parameter of image collecting device, then actual corresponding to the image distance d of product to be measured
Distance l is：
L=Ad
Step S104, testing result is determined according to the actual range and default Product checking scope.
Exemplary, detection knot is determined according to the actual range and default Product checking scope in the step S104
Fruit includes following result：
When the actual range is located in the range of the Product checking, determine that the Product checking to be measured is qualified.
When the actual range is located at outside the Product checking scope, determine that the Product checking to be measured is unqualified.
For correcting image harvester camera distortion, on the basis of previous embodiment, in the another implementation of the present invention
In example, as shown in Fig. 2 before step S101, it can also comprise the following steps.
Step S201, before product to be measured is measured, control described image harvester multi collect is fixed on the detection
The scaling board image of scaling board on platform, scaling board is in the detection platform in the scaling board image gathered every time
Position and angle are different.
Specifically, the scaling board image for the scaling board that the collection of described image harvester is fixed in the detection platform
Number is at least three times.
Step S202, determine the preset calibrations position in the scaling board image.
Step S203, when by the scaling board image scaling to it is identical with the actual size of the scaling board after, according to institute
Preset calibrations position is stated to demarcate described image harvester.
Exemplary, after the scaling board image of image acquisition device to the scaling board being fixed in detection platform,
Chosen in the scaling board image and be a little used as preset calibrations position, according to scaling board picture size and scaling board actual size
Pantograph ratio scaling board image is zoomed in and out, by by the preset calibrations position of the scaling board image after scaling and the pre- bidding
Positioning is put the corresponding physical location in scaling board and alignd to carry out the demarcation to image collecting device.
In order to determine the corresponding relation between the image distance and actual range of the product image of image acquisition units collection,
On the basis of previous embodiment, in another embodiment of the present invention, as shown in figure 3, before step S101, it can also wrap
Include following steps.
Step S301, control drive mechanism drive the detection platform for being fixed with demarcation thing to be moved to default position along default guide rail
Put.
Step S302, when receiving the feedback signal that the sensing device for being arranged at the predeterminated position is sent, control institute
State image acquisition device reference object image.
Step S303, determine that the pixel coordinate of predeterminated position and the demarcation thing are default in the reference object image
Space coordinates in space coordinates.
Step S304, determine each calibration point position and any two described in image distance between calibration point.
Step S305, according to the pixel coordinate and the space coordinates, determine between image distance and actual range
Corresponding relation.
Specifically, obtaining the pixel coordinate of predeterminated position in the reference object image, the pixel coordinate is converted into image
Coordinate, then by being calculated between the space coordinates of the image coordinate and the demarcation thing in default space coordinates
Relation, if described image coordinate is (m1, n1), the space coordinates is (m2, n2, p), and relation between the two can represent
For：
Wherein M is 3 × 3 matrixes being made up of the camera parameter of image collecting device, is (m1, n1) in known image coordinate
, can be to obtain the concrete numerical value of matrix M individual matrix element in the case of being (m2, n2, p) with space coordinates, also can
The camera parameter of image collecting device is obtained, and then can be obtained by the value of A in formula (1), the image acquisition device
Any 2 points of product image between image distance and actual range between corresponding relation can with determine.
In another embodiment of the present invention, a kind of product detection device is also provided, Fig. 4 is provided in an embodiment of the present invention
A kind of schematic diagram of product detection device.As shown in figure 4, including：
Acquisition module 11, each preset is moved in the detection platform of fixation product to be measured for obtaining image collecting device
The product image gathered during position, the corresponding at least product image of each predeterminated position；
First determining module 12, for determining the first coordinate of fisrt feature, second feature in every product image
The second coordinate and first coordinate and second coordinate between image distance；
Computing module 13, for according to the corresponding relation between default image distance and actual range, calculate with it is described
Actual range corresponding to image distance；
Second determining module 14, for determining testing result according to the actual range and default Product checking scope.
The device that the embodiment of the present invention is provided, its realization principle and caused technique effect and preceding method embodiment phase
Together, to briefly describe, device embodiment part does not refer to part, refers to corresponding contents in preceding method embodiment.
Optionally, acquisition module can be additionally used in：
Control drive mechanism drives the detection platform to be moved to predeterminated position along default guide rail；
When receiving the feedback signal that the sensing device for being arranged at the predeterminated position is sent, control described image collection
Device gathers product image, is finished until the product image of multiple predeterminated positions all gathers.
Optionally, described device also includes：
First control module, for before product to be measured is measured, control described image harvester multi collect to be fixed on
The scaling board image of scaling board in the detection platform, scaling board is in the detection in the scaling board image gathered every time
Position and angle on platform is different；
3rd determining module, for determining the preset calibrations position in the scaling board image；
Demarcating module, for when by the scaling board image scaling to it is identical with the actual size of the scaling board after, root
Described image harvester is demarcated according to the preset calibrations position.
Optionally, described device also includes：
Second control module, the detection platform that demarcation thing is fixed with for controlling drive mechanism to drive move along default guide rail
To predeterminated position；
3rd control module, for when the feedback signal for receiving the sensing device for being arranged at predeterminated position transmission
When, control described image harvester collection reference object image；
4th determining module, for determining the pixel coordinate of predeterminated position and the demarcation thing in the reference object image
Space coordinates in default space coordinates；
5th determining module, for determine each calibration point position and any two described in image between calibration point away from
From；
6th determining module, for according to the pixel coordinate and the space coordinates, determine image distance with it is actual away from
Corresponding relation between.
In another embodiment of the present invention, a kind of products detection system is also provided, Fig. 5 is provided in an embodiment of the present invention
A kind of schematic diagram of products detection system.As shown in figure 5, the system includes：Image collecting device 2, drive mechanism 3, detection are flat
Platform 4 and control module 1；
Image collecting device 2, for the image in the control collection image acquisition region according to control module 1, and by institute
State image and be sent to control module 1；
Drive mechanism 3, for driving detection platform 4 to move according to the control of control module 1；
Control module 1, it is moved to for obtaining image collecting device 2 in the detection platform 4 of fixation product to be measured each pre-
If the product image gathered during position, the corresponding at least product image of each predeterminated position；Determine every product image
Image between first coordinate of middle fisrt feature, the second coordinate of second feature and first coordinate and second coordinate
Distance；According to the corresponding relation between default image distance and actual range, calculate corresponding with described image distance actual
Distance；And testing result is determined according to the actual range and default Product checking scope.
The embodiment of the present invention is moved to respectively by obtaining image collecting device first in the detection platform of fixation product to be measured
The product image gathered during individual predeterminated position, the corresponding at least product image of each predeterminated position；It is then determined that described in every
First coordinate of fisrt feature, the second coordinate of second feature and first coordinate and second coordinate in product image
Between image distance；Further according to the corresponding relation between default image distance and actual range, calculate and described image distance
Corresponding actual range；Testing result is finally determined according to the actual range and default Product checking scope.
The embodiment of the present invention by the detection platform for being fixed with product to be detected by being moved to predeterminated position, by IMAQ
Device is acquired to the image of the product to be detected of the predeterminated position, is carrying out the multiple IMAQ to multiple predeterminated positions
During do not need mobile image acquisition device, avoid due to image collecting device rock cause image fault, measurement
As a result the problem of inaccurate, meanwhile, testing staff is it also avoid because above mentioned problem resurveys image, province simple to operate manually
When, detection efficiency also further improves.
Flow chart and block diagram in accompanying drawing show system, method and the computer journey of multiple embodiments according to the present invention
Architectural framework in the cards, function and the operation of sequence product.At this point, each square frame in flow chart or block diagram can generation
The part of one module of table, program segment or code, a part for the module, program segment or code include one or more use
In the executable instruction of logic function as defined in realization.It should also be noted that marked at some as in the realization replaced in square frame
The function of note can also be with different from the order marked in accompanying drawing generation.For example, two continuous square frames can essentially base
Originally it is performed in parallel, they can also be performed in the opposite order sometimes, and this is depending on involved function.It is also noted that
It is the combination of each square frame and block diagram in block diagram and/or flow chart and/or the square frame in flow chart, can uses and perform rule
Fixed function or the special hardware based system of action are realized, or can use the group of specialized hardware and computer instruction
Close to realize.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description
With the specific work process of device, the corresponding process in preceding method embodiment is may be referred to, will not be repeated here.
In addition, in the description of the embodiment of the present invention, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in invention.
If the function is realized in the form of SFU software functional unit and is used as independent production marketing or in use, can be with
It is stored in a computer read/write memory medium.Based on such understanding, technical scheme is substantially in other words
The part to be contributed to prior art or the part of the technical scheme can be embodied in the form of software product, the meter
Calculation machine software product is stored in a storage medium, including some instructions are causing a computer equipment (can be
People's computer, server, or network equipment etc.) perform all or part of step of each embodiment methods described of the present invention.
And foregoing storage medium includes：USB flash disk, mobile hard disk, read-only storage (ROM, Read-Only Memory), arbitrary access are deposited
Reservoir (RAM, Random Access Memory), magnetic disc or CD etc. are various can be with the medium of store program codes.
In the description of the invention, it is necessary to explanation, term " " center ", " on ", " under ", "left", "right", " vertical ",
The orientation or position relationship of the instruction such as " level ", " interior ", " outer " be based on orientation shown in the drawings or position relationship, merely to
Be easy to the description present invention and simplify description, rather than instruction or imply signified device or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second ",
" the 3rd " is only used for describing purpose, and it is not intended that instruction or hint relative importance.
Finally it should be noted that：Embodiment described above, it is only the embodiment of the present invention, to illustrate the present invention
Technical scheme, rather than its limitations, protection scope of the present invention is not limited thereto, although with reference to the foregoing embodiments to this hair
It is bright to be described in detail, it will be understood by those within the art that：Any one skilled in the art
The invention discloses technical scope in, it can still modify to the technical scheme described in previous embodiment or can be light
Change is readily conceivable that, or equivalent substitution is carried out to which part technical characteristic；And these modifications, change or replacement, do not make
The essence of appropriate technical solution departs from the spirit and scope of technical scheme of the embodiment of the present invention, should all cover the protection in the present invention
Within the scope of.Therefore, protection scope of the present invention described should be defined by scope of the claims.
Claims (10)
1. a kind of product inspection method, it is characterised in that methods described includes：
Obtain the product figure that image collecting device gathers when the detection platform of fixation product to be measured is moved to each predeterminated position
Picture, the corresponding at least product image of each predeterminated position；
Determine the first coordinate of fisrt feature in every product image, the second coordinate of second feature and first seat
Image distance between mark and second coordinate；
According to the corresponding relation between default image distance and actual range, calculate with described image apart from it is corresponding actually away from
From；
Testing result is determined according to the actual range and default Product checking scope.
2. product inspection method according to claim 1, it is characterised in that the acquisition image collecting device is treated in fixation
The detection platform for surveying product is moved to the product image gathered during each predeterminated position, including：
Control drive mechanism drives the detection platform to be moved to predeterminated position along default guide rail；
When receiving the feedback signal that the sensing device for being arranged at the predeterminated position is sent, described image harvester is controlled
Product image is gathered, is finished until the product image of multiple predeterminated positions all gathers.
3. product inspection method according to claim 1, it is characterised in that methods described also includes：
Before product to be measured is measured, scaling board that control described image harvester multi collect is fixed in the detection platform
Scaling board image, position and angle of the scaling board in the detection platform be not in the scaling board image gathered every time
Together；
Determine the preset calibrations position in the scaling board image；
When by the scaling board image scaling to it is identical with the actual size of the scaling board after, according to the preset calibrations position
Described image harvester is demarcated.
4. product inspection method according to claim 1, it is characterised in that methods described also includes：
Control drive mechanism drives the detection platform for being fixed with demarcation thing to be moved to predeterminated position along default guide rail；
When receiving the feedback signal that the sensing device for being arranged at the predeterminated position is sent, described image harvester is controlled
Gather reference object image；
Determine that the pixel coordinate of predeterminated position and the demarcation thing are in default space coordinates in the reference object image
Space coordinates；
Determine each calibration point position and any two described in image distance between calibration point；
According to the pixel coordinate and the space coordinates, the corresponding relation between image distance and actual range is determined.
5. product inspection method according to claim 1, it is characterised in that it is described according to the actual range with it is default
Product checking scope determines testing result, including：
When the actual range is located in the range of the Product checking, determine that the Product checking to be measured is qualified；
When the actual range is located at outside the Product checking scope, determine that the Product checking to be measured is unqualified.
6. a kind of product detection device, it is characterised in that described device includes：
Acquisition module, for obtaining image collecting device when the detection platform of fixation product to be measured is moved to each predeterminated position
The product image of collection, the corresponding at least product image of each predeterminated position；
First determining module, for determine the first coordinate of fisrt feature in every product image, second feature second
Image distance between coordinate and first coordinate and second coordinate；
Computing module, for according to the corresponding relation between default image distance and actual range, calculate with described image away from
From corresponding actual range；
Second determining module, for determining testing result according to the actual range and default Product checking scope.
7. product detection device according to claim 6, it is characterised in that the acquisition module is additionally operable to：
Control drive mechanism drives the detection platform to be moved to predeterminated position along default guide rail；
When receiving the feedback signal that the sensing device for being arranged at the predeterminated position is sent, described image harvester is controlled
Product image is gathered, is finished until the product image of multiple predeterminated positions all gathers.
8. product detection device according to claim 6, it is characterised in that described device also includes：
First control module, for before product to be measured is measured, control described image harvester multi collect to be fixed on described
The scaling board image of scaling board in detection platform, scaling board is in the detection platform in the scaling board image gathered every time
On position and angle it is different；
3rd determining module, for determining the preset calibrations position in the scaling board image；
Demarcating module, for when by the scaling board image scaling to it is identical with the actual size of the scaling board after, according to institute
Preset calibrations position is stated to demarcate described image harvester.
9. product detection device according to claim 6, it is characterised in that described device also includes：
Second control module, it is pre- for controlling drive mechanism to drive to be fixed with the detection platform of demarcation thing to be moved to along default guide rail
If position；
3rd control module, for when receiving the feedback signal that the sensing device for being arranged at the predeterminated position is sent, controlling
Described image harvester processed gathers reference object image；
4th determining module, for determining that the pixel coordinate of predeterminated position and the demarcation thing are pre- in the reference object image
If space coordinates in space coordinates；
5th determining module, for determine each calibration point position and any two described in image distance between calibration point；
6th determining module, for according to the pixel coordinate and the space coordinates, determine image distance and actual range it
Between corresponding relation.
A kind of 10. products detection system, it is characterised in that including：Image collecting device, drive mechanism, detection platform and control
Module；
Described image harvester, for the image in the control collection image acquisition region according to the control module, and will
Described image is sent to the control module；
The drive mechanism, for driving the detection platform to move according to the control of the control module；
The control module, each default position is moved in the detection platform of fixation product to be measured for obtaining image collecting device
The product image gathered when putting, the corresponding at least product image of each predeterminated position；Determine in every product image
Between first coordinate of one feature, the second coordinate of second feature and first coordinate and second coordinate image away from
From；According to the corresponding relation between default image distance and actual range, calculate with described image apart from it is corresponding actually away from
From；And testing result is determined according to the actual range and default Product checking scope.
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| CN201710732580.7A CN107478155A (en) | 2017-08-24 | 2017-08-24 | Product inspection method, apparatus and system |
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| CN201710732580.7A CN107478155A (en) | 2017-08-24 | 2017-08-24 | Product inspection method, apparatus and system |
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