CN114877819A - Product deformation detection system and method - Google Patents
Product deformation detection system and method Download PDFInfo
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- CN114877819A CN114877819A CN202110167309.XA CN202110167309A CN114877819A CN 114877819 A CN114877819 A CN 114877819A CN 202110167309 A CN202110167309 A CN 202110167309A CN 114877819 A CN114877819 A CN 114877819A
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- 238000001514 detection method Methods 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000005259 measurement Methods 0.000 description 4
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- 238000010586 diagram Methods 0.000 description 2
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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
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Abstract
The invention provides a product deformation detection system and a method, wherein the product deformation detection system comprises: the input unit inputs numerical values in sequence and numbers the numerical values; wherein the serial numbers are positive integers and are sequentially increased in arithmetic difference; the processing unit generates coordinate points according to the numerical values and the serial numbers thereof, fits a first function according to the coordinate points, and differentiates the first function twice to generate a second function; the judging unit obtains a judging result according to the value range of the second function; and the display unit displays characters or images according to the judgment result. The product deformation detection system and the product deformation detection method have the advantages that the deformation condition of the product can be rapidly judged, the detection efficiency is improved, the judgment result is not influenced when the product is obliquely placed, and the precision requirement on the jig is reduced.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of detection systems, in particular to a product deformation detection system and method.
[ background of the invention ]
When detecting the deformation degree of a product (such as a shell of a notebook computer), the product needs to be placed on a jig so as to be horizontally placed, then height values of a plurality of positions are measured in sequence along a straight line direction, and after the data are measured, the data are manually analyzed to obtain a result. However, this method requires the product to be placed strictly horizontally to obtain an accurate height value, so the accuracy requirement for the jig is high, and the method of manually analyzing data is inefficient.
Therefore, there is a need for improvements in the prior art.
[ summary of the invention ]
The technical problem to be solved by the invention is as follows: the method aims to solve the problems that in the prior art, the method for detecting the degree of deformation of a product has high requirements on the precision of a jig, and the efficiency is low by adopting a mode of manually analyzing data. The invention provides a product deformation detection system and a method to solve the problems.
The technical scheme for solving the technical problem is as follows:
a product deformation detection system comprising:
the input unit inputs numerical values in sequence and numbers the numerical values; wherein the serial numbers are positive integers and are sequentially increased in arithmetic difference;
the processing unit generates coordinate points according to the numerical values and the serial numbers thereof, fits a first function according to the coordinate points, and differentiates the first function twice to generate a second function;
the judging unit obtains a judging result according to the value range of the second function;
and the display unit displays characters or images according to the judgment result.
Preferably, the coordinate points are respectively ordinate and abscissa with the numerical value and the number thereof.
Preferably, the first function is differentiated to form an intermediate function, and the intermediate function is differentiated to form the second function.
Preferably, when a positive value and a negative value exist in the range of the second function at the same time, the judgment result is unqualified; otherwise, the judgment result is qualified.
Preferably, the display unit displays "OK" when the determination result is pass; and when the judgment result is unqualified, the display unit displays NG.
The invention also provides a product deformation detection method, which comprises the following steps:
an input step, wherein an input unit sequentially inputs numerical values and numbers the numerical values; wherein the serial numbers are positive integers and are sequentially increased in arithmetic difference;
processing, namely generating coordinate points by a processing unit according to the numerical values and the serial numbers thereof, fitting the coordinate points into a first function, and differentiating the first function twice to generate a second function;
a judging step, wherein a judging unit obtains a judging result according to the value range of the second function;
and a display step, wherein the display unit displays characters or images according to the judgment result.
Preferably, the coordinate points are respectively ordinate and abscissa with the numerical value and the number thereof.
Preferably, the differentiating the first function twice to generate the second function specifically includes differentiating the first function to form an intermediate function, and differentiating the intermediate function to form the second function.
Preferably, obtaining the determination result according to the value range of the second function specifically includes that when a positive value and a negative value exist in the value range of the second function at the same time, the determination result is unqualified; otherwise, the judgment result is qualified.
Preferably, the displaying the text or the image according to the determination result specifically includes displaying "OK" on the display unit when the determination result is qualified; and when the judgment result is unqualified, the display unit displays NG.
The product deformation detection system and the product deformation detection method have the advantages that the deformation condition of the product can be rapidly judged, the detection efficiency is improved, the judgment result is not influenced when the product is obliquely placed, and the precision requirement on the jig is reduced.
[ description of the drawings ]
FIG. 1 is a schematic diagram of a product deformation detection system of the present invention.
FIG. 2 is a flow chart of a method of detecting deformation of a product according to the present invention.
[ detailed description ] embodiments
To further illustrate the technical means and effects of the present invention, the following detailed description is given with reference to the embodiments of the present invention and the accompanying drawings.
Referring to fig. 1 and 2, fig. 1 is a schematic diagram illustrating a product deformation detection system according to the present invention. FIG. 2 is a flow chart of a method for detecting product deformation according to the present invention. The present invention provides a product deformation detection system 100, comprising:
the recording unit 1 is used for sequentially recording numerical values (namely the measured height numerical values of the products) and numbering the numerical values, wherein the numerical values are positive integers and are sequentially increased in arithmetic progression. For example, the first measured value is a1, numbered 1; the second measurement has a value a2, numbered 2; the third measurement is a3, numbered 3 … … and so on, starting with 1 and then incrementing one by one with a tolerance of 1.
And the processing unit 2 is used for generating coordinate points according to the numerical values and the serial numbers thereof, fitting the coordinate points into a first function, and differentiating the first function twice to generate a second function.
And the judging unit 3 is used for obtaining a judging result according to the value range of the second function by the judging unit 3.
And a display unit 4, wherein the display unit 4 displays characters or images according to the judgment result.
Wherein, the coordinate points respectively take numerical values and numbers thereof as vertical coordinates and horizontal coordinates. Such as (1, A1), (2, A2), (3, A3) … …
Wherein an intermediate function is formed after differentiating the first function, and a second function is formed after differentiating the intermediate function.
When a positive value and a negative value exist in the value range of the second function at the same time, the result is judged to be unqualified; otherwise, judging the result to be qualified.
Wherein, when the judgment result is qualified, the display unit 4 displays "OK"; when the judgment result is not good, the display unit 4 displays "NG".
The display unit 4 can also display a function image and a coordinate axis of the second function, so that a user can intuitively judge whether a positive value and a negative value exist in the value range of the second function at the same time.
Based on the product deformation detection system 100, the invention further provides a product deformation detection method, which includes:
s1: and in the recording step, the recording unit 1 sequentially records numerical values and numbers the numerical values, wherein the numbers are positive integers and are sequentially increased in arithmetic difference. For example, the first measured value is a1, numbered 1; the second measurement has a value a2, numbered 2; the third measurement is a3, numbered 3 … … and so on, starting with 1 and then incrementing one by one with a tolerance of 1.
S2: and in the processing step, the processing unit 2 generates coordinate points according to the numerical values and the serial numbers thereof, synthesizes a first function according to the coordinate points, and differentiates the first function twice to generate a second function.
S3: and a judging step, wherein the judging unit 3 obtains a judging result according to the value range of the second function.
S4: and a display step, in which the display unit 4 displays characters or images according to the judgment result.
Wherein, the coordinate points respectively take numerical values and numbers thereof as vertical coordinates and horizontal coordinates. Such as (1, A1), (2, A2), (3, A3) … …
The step of differentiating the first function twice to generate the second function specifically includes differentiating the first function to form an intermediate function, and differentiating the intermediate function to form the second function.
The step of obtaining the judgment result according to the value range of the second function specifically comprises the step of judging that the judgment result is unqualified when a positive value and a negative value exist in the value range of the second function at the same time; otherwise, the judgment result is qualified.
Specifically, displaying the text or the image according to the determination result includes displaying "OK" on the display unit 4 when the determination result is acceptable; when the judgment result is not good, the display unit 4 displays "NG".
The display unit 4 can also display a function image and a coordinate axis of the second function, so that a user can intuitively judge whether a positive value and a negative value exist in the value range of the second function at the same time.
The principle of the product deformation detection system 100 and method is as follows: because the first function is formed by fitting the coordinate points, the variation trend of the function image of the first function represents the variation trend of the product height, namely the deformation condition of the product, and when the first function is S-shaped, the product deformation is unqualified. The first function is S-shaped, which reflects the condition that the slope of the first function is firstly increased and then decreased or firstly decreased and then increased on the function image of the first function, and reflects whether the value range of the second function has a positive value and a negative value simultaneously or not on the function image of the second function, namely whether the image of the second function passes through the X axis or not. Therefore, whether the product deformation is qualified or not can be judged by judging the value range condition of the second function.
The invention has the beneficial effects that: the product deformation detection system 100 and the method can rapidly judge the deformation condition of the product, improve the detection efficiency, and the judgment standard is the slope change condition of the first function, so that when the product is placed obliquely, the judgment result is not influenced, and the precision requirement on the jig is reduced.
It should be noted that the present invention is not limited to the above embodiments, and any simple modification, equivalent change and modification made to the above embodiments by those skilled in the art based on the technical solution of the present invention fall within the protection scope of the present invention.
Claims (10)
1. A product deformation detection system, comprising:
the input unit inputs numerical values in sequence and numbers the numerical values; wherein the serial numbers are positive integers and are sequentially increased in arithmetic difference;
the processing unit generates coordinate points according to the numerical values and the serial numbers thereof, fits a first function according to the coordinate points, and differentiates the first function twice to generate a second function;
the judging unit obtains a judging result according to the value range of the second function;
and the display unit displays characters or images according to the judgment result.
2. A product deformation detection system as claimed in claim 1, wherein:
and the coordinate points take the numerical values and the numbers thereof as vertical coordinates and horizontal coordinates respectively.
3. A product deformation detection system as claimed in claim 2, wherein:
and differentiating the first function to form an intermediate function, and differentiating the intermediate function to form the second function.
4. A product deformation detection system as claimed in claim 3, wherein:
when a positive value and a negative value exist in the value range of the second function at the same time, the judgment result is unqualified; otherwise, the judgment result is qualified.
5. A product deformation detection system as claimed in claim 4, wherein:
when the judgment result is qualified, the display unit displays 'OK'; and when the judgment result is unqualified, the display unit displays NG.
6. A method of detecting product deformation, comprising:
an input step, an input unit sequentially inputs numerical values and numbers the numerical values; wherein the serial numbers are positive integers and are sequentially increased in arithmetic difference;
processing, namely generating coordinate points by a processing unit according to the numerical values and the serial numbers thereof, fitting the coordinate points into a first function, and differentiating the first function twice to generate a second function;
a judging step, wherein a judging unit obtains a judging result according to the value range of the second function;
and a display step, wherein the display unit displays characters or images according to the judgment result.
7. A method for detecting deformation of a product as claimed in claim 6, characterized in that:
and the coordinate points take the numerical values and the numbers thereof as vertical coordinates and horizontal coordinates respectively.
8. A method of detecting deformation of a product as claimed in claim 7, characterized in that:
the differentiating the first function twice to generate a second function specifically includes differentiating the first function to form an intermediate function, and differentiating the intermediate function to form the second function.
9. A method for detecting deformation of a product as claimed in claim 8, characterized in that:
obtaining a judgment result according to the value range of the second function specifically comprises that when a positive value and a negative value exist in the value range of the second function at the same time, the judgment result is unqualified; otherwise, the judgment result is qualified.
10. A method of detecting deformation of a product as claimed in claim 9, characterized in that:
displaying the text or the image according to the judgment result specifically includes that when the judgment result is qualified, the display unit displays 'OK'; and when the judgment result is unqualified, the display unit displays NG.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110167309.XA CN114877819A (en) | 2021-02-05 | 2021-02-05 | Product deformation detection system and method |
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| CN202110167309.XA CN114877819A (en) | 2021-02-05 | 2021-02-05 | Product deformation detection system and method |
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| JPH08159740A (en) * | 1994-12-08 | 1996-06-21 | Honda Motor Co Ltd | Surface distortion judging method |
| JP2002214147A (en) * | 2001-01-12 | 2002-07-31 | Nissan Motor Co Ltd | Surface flaw inspecting device |
| CN1488933A (en) * | 2002-08-22 | 2004-04-14 | 丰田自动车株式会社 | Good-or-not decision device, decision programme, method and multi-variable statistical analyzing device |
| US20070121121A1 (en) * | 2005-10-17 | 2007-05-31 | Robert Wilhelm | Method and apparatus for detecting the deformation of objects |
| CN101421582A (en) * | 2006-06-12 | 2009-04-29 | 住友电装株式会社 | Device and method for inspecting external appearance of wire harness |
| JP2016085153A (en) * | 2014-10-28 | 2016-05-19 | 株式会社ジェイテクト | Infrared stress measurement method and infrared stress measurement device |
-
2021
- 2021-02-05 CN CN202110167309.XA patent/CN114877819A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08159740A (en) * | 1994-12-08 | 1996-06-21 | Honda Motor Co Ltd | Surface distortion judging method |
| JP2002214147A (en) * | 2001-01-12 | 2002-07-31 | Nissan Motor Co Ltd | Surface flaw inspecting device |
| CN1488933A (en) * | 2002-08-22 | 2004-04-14 | 丰田自动车株式会社 | Good-or-not decision device, decision programme, method and multi-variable statistical analyzing device |
| US20070121121A1 (en) * | 2005-10-17 | 2007-05-31 | Robert Wilhelm | Method and apparatus for detecting the deformation of objects |
| CN101421582A (en) * | 2006-06-12 | 2009-04-29 | 住友电装株式会社 | Device and method for inspecting external appearance of wire harness |
| JP2016085153A (en) * | 2014-10-28 | 2016-05-19 | 株式会社ジェイテクト | Infrared stress measurement method and infrared stress measurement device |
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