CN113048902A - Plate deformation measuring equipment and method based on image processing - Google Patents
Plate deformation measuring equipment and method based on image processing Download PDFInfo
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- CN113048902A CN113048902A CN202110252767.3A CN202110252767A CN113048902A CN 113048902 A CN113048902 A CN 113048902A CN 202110252767 A CN202110252767 A CN 202110252767A CN 113048902 A CN113048902 A CN 113048902A
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- 238000012545 processing Methods 0.000 title claims abstract description 47
- 238000000034 method Methods 0.000 title claims abstract description 34
- 238000005259 measurement Methods 0.000 claims abstract description 12
- 238000005516 engineering process Methods 0.000 claims abstract description 8
- 230000000694 effects Effects 0.000 claims abstract description 7
- 238000004364 calculation method Methods 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims description 13
- 238000000691 measurement method Methods 0.000 claims 1
- 238000005034 decoration Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
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- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052918 calcium silicate Inorganic materials 0.000 description 1
- 239000000378 calcium silicate Substances 0.000 description 1
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 1
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- 238000001514 detection method Methods 0.000 description 1
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- 238000010586 diagram Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
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- 238000004519 manufacturing process Methods 0.000 description 1
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- 238000012360 testing method Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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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
- G01B11/16—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
Abstract
The invention discloses a plate deformation measuring device and method based on image processing, wherein the device comprises: a sample platform (1) for placing panel, a scale (2) for auxiliary measurement and as reference scale, support post (3) of being connected perpendicularly with the sample platform, connect lift-draw pole connecting piece (4) of support post (3) and lift-draw pole (5), telescopic link (5) of scalable control height, be fixed in LED lamp pole (7) that can provide the parallel light compensation on the support post, plug (8) that the LED lamp pole has connect, be connected perpendicularly and be on a parallel with the cell-phone of scale direction with the telescopic link and press from both sides (6), cell-phone presss from both sides (6) short axle both sides activity clip (9), cell-phone presss from both sides fixed clip (10) in major axis one side. The invention adopts the image processing technology to carry out contour processing on the plate in the picture, measures the data required by deformation calculation, and derives the format which can be used for subsequent use. The method can quickly and accurately measure the deformation data of the plate.
Description
Technical Field
The invention relates to the field of plate deformation measurement, in particular to plate deformation measurement equipment and method based on image processing.
Background
With the continuous increase of the occupancy of finished houses and the continuous increase of the area of the fully-decorated houses, the plates are applied in a large amount as indispensable decoration materials. At present, common boards mainly comprise wood boards, fiber cement boards, calcium silicate boards, gypsum boards, glass magnesium boards, artificial boards and the like, and the boards are mainly applied to indoor and outdoor decoration and finishing projects. The plate can deform under different environments, such as a humid environment or a high-temperature environment and a long-term natural condition, the flatness of the plate can be damaged by deformation, the appearance and the service performance of the plate can be seriously influenced, the deformation of the plate needs to be controlled, and therefore the deformation of the plate needs to be measured in the plate production and plate development processes, and then corresponding measures are taken to control the deformation.
At present, the laboratory is mainly through the deformation of artifical measuring mode to panel to be measured, adopts slide caliper, scale etc. to measure panel length direction, width direction and the required data of thickness direction, and it is inconvenient to the panel measurement of warp deformation, surface or section unevenness, produces the error easily. And because the operating level of experimenters is different, cause human error easily. The plate deformation test data volume is large, and the manual detection efficiency is low.
Therefore, it is desirable to provide an apparatus and method capable of rapidly detecting deformation of a sheet material and providing accurate data.
Disclosure of Invention
In view of the above, the present invention has been made to provide an image processing-based sheet material deformation measuring apparatus and method that overcome or at least partially solve the above-mentioned problems.
In order to solve the technical problem, the embodiment of the application discloses the following technical scheme:
an image processing-based sheet material deformation measuring apparatus, comprising: a sample platform (1) for placing panel, a scale (2) for auxiliary measurement and as reference scale, support post (3) of being connected perpendicularly with the sample platform, connect lift-draw pole connecting piece (4) of support post (3) and lift-draw pole (5), telescopic link (5) of scalable control height, be fixed in LED lamp pole (7) that can provide the parallel light compensation on the support post, plug (8) that the LED lamp pole has connect, be connected perpendicularly and be on a parallel with the cell-phone of scale direction with the telescopic link and press from both sides (6), cell-phone presss from both sides (6) minor axis both sides activity clip (9), cell-phone presss from both sides major axis one side fixed clip (10), activity clip (9) and fixed clip (10) are used for fixed not unidimensional cell-phone.
Further, the sample stage (1) is a black cube.
Furthermore, the maximum measuring range of the scale (2) is not less than 100mm, the minimum scale value is not less than 1mm, and the two rulers of the scale (2) are perpendicular to each other and are respectively parallel to the two sides of the sample table.
Furthermore, the supporting column (3) is black, and the supporting column (3) is vertically connected with the sample table (1).
Furthermore, the telescopic rod (5) is connected with the supporting column (3) through a telescopic rod connecting piece (4), and the length of the telescopic rod can be adjusted through the tightness of the telescopic rod connecting piece (4).
Further, LED lamp pole (7) are fixed in on supporting post (3) for measure for panel and provide parallel light source, connect plug (8) on the LED lamp pole, can use according to actual need.
Furthermore, a mobile phone clamp (6) is fixed on a cross rod vertically connected with the telescopic rod (5), the mobile phone clamp (6) is parallel to any straight ruler direction of the scale (2), a movable clamp (9) is arranged on one side of a short shaft of the mobile phone clamp (6), a fixed clamp (10) is arranged on one side of the long shaft, and mobile phones of various models can be fixed through the movable clamp (9) and the fixed clamp (10).
The invention also discloses a plate deformation measuring method based on image processing, which comprises the following steps:
s100, placing a plate to be measured on a sample table (1), wherein the length and the width of the plate to be measured are aligned with a scaling ruler (2);
s200, fixing the mobile phone by using a mobile phone clamp (6), keeping the parameters of the mobile phone unchanged in the measurement process, and using the same mobile phone when measuring the same batch of samples;
s300, adjusting the length of the telescopic rod (5) to enable a complete and clear plate image to appear in a mobile phone screen, fixing the telescopic rod (5) by using a telescopic rod connecting piece (4), and not changing the length of the telescopic rod any more in the measuring process;
s400, transmitting the shot picture to a computer, setting a calibration point through two vertical rulers on a calibration scale (2), and inputting calibration point information into the computer for calibration initialization;
s500, performing contour processing on the plate in the vertical orthographic view by using initialized data calibrated in a computer and adopting an image processing technology to obtain data to be measured in the length direction, the width direction or the thickness direction of the plate and the like, and deriving a file available for processing in an Excel format;
and S600, calculating the derived data to obtain plate deformation data.
The image processing-based sheet material deformation measuring method according to claim 8, characterized in that:
the step S500 includes the following steps:
s501: collecting a calculation frame through a computer;
s502: extracting a plate processing area;
s503: and carrying out contour processing on the vertical positive shot view image, adopting gray level image Gaussian denoising, self-adaptive threshold value binarization, primary opening operation and primary closing operation to obtain the partitioned contour, and calculating required data in the contour according to the partitioned contour.
The technical scheme provided by the embodiment of the invention has the beneficial effects that at least:
the invention discloses a plate deformation measuring device and method based on image processing. The shot picture is led into a computer, calibration points are set on two perpendicular rulers, calibration initialization is carried out on calibration point information, the calibration point information is utilized, an image processing technology is adopted to carry out contour processing on the plate in the picture, data required by deformation calculation are measured, and Excel type tables and the like are led out to be used for follow-up use. The method can be effectively combined with a computer image processing technology to quickly and accurately measure the deformation data of the plate.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is a structural diagram of a plate deformation measuring apparatus based on image processing in embodiment 1 of the present invention;
fig. 2 is a flowchart of a method for measuring sheet deformation based on image processing in embodiment 1 of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
In order to solve the problems in the prior art, embodiments of the present invention provide a sheet material deformation measurement apparatus and method based on image processing.
Example 1
The embodiment discloses a plate deformation measuring device based on image processing, as shown in fig. 1, including: a sample platform (1) for placing panel, a scale (2) for auxiliary measurement and as reference scale, support post (3) of being connected perpendicularly with the sample platform, connect lift-draw pole connecting piece (4) of support post (3) and lift-draw pole (5), telescopic link (5) of scalable control height, be fixed in LED lamp pole (7) that can provide the parallel light compensation on the support post, plug (8) that the LED lamp pole has connect, be connected perpendicularly and be on a parallel with the cell-phone of scale direction with the telescopic link and press from both sides (6), cell-phone presss from both sides (6) minor axis both sides activity clip (9), cell-phone presss from both sides major axis one side fixed clip (10), activity clip (9) and fixed clip (10) are used for fixed not unidimensional cell-phone.
In some preferred embodiments, the specimen table (1) is a black cube.
In some preferred embodiments, the maximum measuring range of the scale (2) is not less than 100mm, the minimum scale value is not less than 1mm, and two straight edges of the scale (2) are perpendicular to each other and are respectively parallel to two sides of the sample table.
In some preferred embodiments, the support column (3) is black, and the support column (3) is vertically connected with the sample table (1).
In some preferred embodiments, the telescopic rod (5) is connected with the supporting column (3) through a telescopic rod connecting piece (4), and the length of the telescopic rod can be adjusted through tightness of the telescopic rod connecting piece (4).
In some preferred embodiments, the LED lamp post (7) is fixed on the supporting post (3) and used for providing a parallel light source for the plate measurement, and the LED lamp post is connected with a plug (8) which can be used according to actual needs.
In some preferred embodiments, the mobile phone clamp (6) is fixed on a cross rod vertically connected with the telescopic rod (5), the mobile phone clamp (6) is parallel to any ruler direction of the scale (2), a movable clamp (9) is arranged on one side of a short shaft of the mobile phone clamp (6), a fixed clamp (10) is arranged on one side of a long shaft, and mobile phones of various models can be fixed through the movable clamp (9) and the fixed clamp (10).
The embodiment also discloses a plate deformation measuring method based on image processing, which comprises the following steps:
s100, placing a plate to be measured on a sample table (1), wherein the length and the width of the plate to be measured are aligned with a scaling ruler (2);
s200, fixing the mobile phone by using a mobile phone clamp (6), keeping the parameters of the mobile phone unchanged in the measurement process, and using the same mobile phone when measuring the same batch of samples;
s300, adjusting the length of the telescopic rod (5) to enable a complete and clear plate image to appear in a mobile phone screen, fixing the telescopic rod (5) by using a telescopic rod connecting piece (4), and not changing the length of the telescopic rod any more in the measuring process;
s400, transmitting the shot picture to a computer, setting a calibration point through two vertical rulers on a calibration scale (2), and inputting calibration point information into the computer for calibration initialization;
s500, performing contour processing on the plate in the vertical orthographic view by using initialized data calibrated in a computer and adopting an image processing technology to obtain data to be measured in the length direction, the width direction or the thickness direction of the plate and the like, and deriving a file available for processing in an Excel format;
and S600, calculating the derived data to obtain plate deformation data.
In some preferred embodiments, step S500 includes the following steps:
s501: collecting a calculation frame through a computer;
s502: extracting a plate processing area;
s503: and carrying out contour processing on the vertical positive shot view image, adopting gray level image Gaussian denoising, self-adaptive threshold value binarization, primary opening operation and primary closing operation to obtain the partitioned contour, and calculating required data in the contour according to the partitioned contour.
In the image processing-based plate deformation measuring equipment and method disclosed by the embodiment, a plate sample to be tested is placed on a black sample table, two sides of the plate are abutted against vertical rulers, image recording is performed on the sample by adopting a mobile phone parallel to the rulers in a certain direction, the mobile phones used for the samples in the same batch are the same, and the heights of the telescopic rods are the same. The shot picture is led into a computer, calibration points are set on two perpendicular rulers, calibration initialization is carried out on calibration point information, the calibration point information is utilized, an image processing technology is adopted to carry out contour processing on the plate in the picture, data required by deformation calculation are measured, and Excel type tables and the like are led out to be used for follow-up use. The method can be effectively combined with a computer image processing technology to quickly and accurately measure the deformation data of the plate.
It should be understood that the specific order or hierarchy of steps in the processes disclosed is an example of exemplary approaches. Based upon design preferences, it is understood that the specific order or hierarchy of steps in the processes may be rearranged without departing from the scope of the present disclosure. The accompanying method claims present elements of the various steps in a sample order, and are not intended to be limited to the specific order or hierarchy.
In the foregoing detailed description, various features are grouped together in a single embodiment for the purpose of streamlining the disclosure. This method of disclosure is not to be interpreted as reflecting an intention that the claimed embodiments of the subject matter require more features than are expressly recited in each claim. Rather, as the following claims reflect, invention lies in less than all features of a single disclosed embodiment. Thus, the following claims are hereby expressly incorporated into the detailed description, with each claim standing on its own as a separate preferred embodiment of the invention.
Those of skill would further appreciate that the various illustrative logical blocks, modules, circuits, and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both. To clearly illustrate this interchangeability of hardware and software, various illustrative components, blocks, modules, circuits, and steps have been described above generally in terms of their functionality. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the overall system. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present disclosure.
The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. A software module may reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. Of course, the storage medium may also be integral to the processor. The processor and the storage medium may reside in an ASIC. The ASIC may reside in a user terminal. Of course, the processor and the storage medium may reside as discrete components in a user terminal.
For a software implementation, the techniques described herein may be implemented with modules (e.g., procedures, functions, and so on) that perform the functions of the present application. The software codes may be stored in memory units and executed by processors. The memory unit may be implemented within the processor or external to the processor, in which case it can be communicatively coupled to the processor via various means as is known in the art.
What has been described above includes examples of one or more embodiments. It is, of course, not possible to describe every conceivable combination of components or methodologies for purposes of describing the aforementioned embodiments, but one of ordinary skill in the art may recognize that many further combinations and permutations of various embodiments are possible. Accordingly, the embodiments described herein are intended to embrace all such alterations, modifications and variations that fall within the scope of the appended claims. Furthermore, to the extent that the term "includes" is used in either the detailed description or the claims, such term is intended to be inclusive in a manner similar to the term "comprising" as "comprising" is interpreted when employed as a transitional word in a claim. Furthermore, any use of the term "or" in the specification of the claims is intended to mean a "non-exclusive or".
Claims (9)
1. The utility model provides a panel deformation measuring equipment based on image processing which characterized in that: the method comprises the following steps: a sample platform (1) for placing panel, a scale (2) for auxiliary measurement and as reference scale, support post (3) of being connected perpendicularly with the sample platform, connect lift-draw pole connecting piece (4) of support post (3) and lift-draw pole (5), telescopic link (5) of scalable control height, be fixed in LED lamp pole (7) that can provide the parallel light compensation on the support post, plug (8) that the LED lamp pole has connect, be connected perpendicularly and be on a parallel with the cell-phone of scale direction with the telescopic link and press from both sides (6), cell-phone presss from both sides (6) minor axis both sides activity clip (9), cell-phone presss from both sides major axis one side fixed clip (10), activity clip (9) and fixed clip (10) are used for fixed not unidimensional cell-phone.
2. The image-processing-based sheet material deformation measuring apparatus according to claim 1, wherein: the sample table (1) is black cube.
3. The image-processing-based sheet material deformation measuring apparatus according to claim 1, characterized in that: the maximum measuring range of the scale (2) is not less than 100mm, the minimum scale value is not less than 1mm, and the two rulers of the scale (2) are perpendicular to each other and are parallel to the two sides of the sample table respectively.
4. The image-processing-based sheet material deformation measuring apparatus according to claim 1, characterized in that: the supporting column (3) is black, and the supporting column (3) is vertically connected with the sample table (1).
5. The image-processing-based sheet material deformation measuring apparatus according to claim 1, characterized in that: the telescopic rod (5) is connected with the supporting column (3) through a telescopic rod connecting piece (4), and the length of the telescopic rod can be adjusted through the tightness of the telescopic rod connecting piece (4).
6. The image-processing-based sheet material deformation measuring apparatus according to claim 1, characterized in that: LED lamp pole (7) are fixed in on supporting post (3) for measure for panel and provide parallel light source, connect plug (8) on the LED lamp pole, can use according to actual need.
7. The image-processing-based sheet material deformation measuring apparatus according to claim 1, characterized in that: the mobile phone clamp (6) is fixed on a cross rod vertically connected with the telescopic rod (5), the mobile phone clamp (6) is parallel to any ruler direction of the scale (2), a movable clamp (9) is arranged on one side of a short shaft of the mobile phone clamp (6), a fixed clamp (10) is arranged on one side of the long shaft, and mobile phones of various models can be fixed through the movable clamp (9) and the fixed clamp (10).
8. A plate deformation measurement method based on image processing is characterized in that: the method comprises the following steps:
s100, placing a plate to be measured on a sample table (1), wherein the length and the width of the plate to be measured are aligned with a scaling ruler (2);
s200, fixing the mobile phone by using a mobile phone clamp (6), keeping the parameters of the mobile phone unchanged in the measurement process, and using the same mobile phone when measuring the same batch of samples;
s300, adjusting the length of the telescopic rod (5) to enable a complete and clear plate image to appear in a mobile phone screen, fixing the telescopic rod (5) by using a telescopic rod connecting piece (4), and not changing the length of the telescopic rod any more in the measuring process;
s400, transmitting the shot picture to a computer, setting a calibration point through two vertical rulers on a calibration scale (2), and inputting calibration point information into the computer for calibration initialization;
s500, performing contour processing on the plate in the vertical orthographic view by using initialized data calibrated in a computer and adopting an image processing technology to obtain data to be measured in the length direction, the width direction or the thickness direction of the plate and the like, and deriving a file available for processing in an Excel format;
and S600, calculating the derived data to obtain plate deformation data.
9. The image processing-based sheet material deformation measuring method according to claim 8, characterized in that:
the step S500 includes the following steps:
s501: collecting a calculation frame through a computer;
s502: extracting a plate processing area;
s503: and carrying out contour processing on the vertical positive shot view image, adopting gray level image Gaussian denoising, self-adaptive threshold value binarization, primary opening operation and primary closing operation to obtain the partitioned contour, and calculating required data in the contour according to the partitioned contour.
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| CN202110252767.3A CN113048902A (en) | 2021-03-09 | 2021-03-09 | Plate deformation measuring equipment and method based on image processing |
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| CN202110252767.3A CN113048902A (en) | 2021-03-09 | 2021-03-09 | Plate deformation measuring equipment and method based on image processing |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116071366A (en) * | 2023-04-04 | 2023-05-05 | 北京城建集团有限责任公司 | Reverse construction method monitoring method, system, equipment and storage medium based on image processing |
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| CN201218724Y (en) * | 2008-06-24 | 2009-04-08 | 上海埃蒙特自动化系统有限公司 | Detection system for position, size and appearance of large surface sheet material |
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