CN109186940A - The monitoring method of measuring accuracy and the monitoring device of measuring accuracy - Google Patents
The monitoring method of measuring accuracy and the monitoring device of measuring accuracy Download PDFInfo
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- CN109186940A CN109186940A CN201810866091.5A CN201810866091A CN109186940A CN 109186940 A CN109186940 A CN 109186940A CN 201810866091 A CN201810866091 A CN 201810866091A CN 109186940 A CN109186940 A CN 109186940A
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- sfr
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
Abstract
A kind of monitoring method of measuring accuracy, comprising the following steps: selected test sample, test sample is qualified product；Multiple SFR are set up according to predetermined detection environment and detect board, and multiple SFR detection boards detect test sample, and output test result, select qualified SFR detection board according to testing result, qualified SFR detection board is for detecting mould set product to be measured；Set point examines the time, detects mould set products to be measured, while timing using more qualified SFR detection boards, and when qualified SFR detection board work timing reaches inspection time, qualified SFR detection board is sounded an alarm and stopped working.The monitoring method of measuring accuracy of the invention can facilitate the problematic SFR detection board of discovery；Underproof SFR detection board is adjusted in time, plays the purpose of monitoring.The present invention also provides a kind of monitoring devices of measuring accuracy.
Description
Technical field
The present invention relates to lens optical the field of test technology, in particular to the monitoring method and test essence of a kind of measuring accuracy
The monitoring device of degree.
Background technique
With growing stronger day by day for smart phone market, mobile phone camera module gradually develops towards high pixel, now most of
People get used to mobile phone camera replace general traditional camera go record live and by mobile phone directly shares to interconnection
Net.Therefore the quality of a camera module is also a judgment basis of the people for selection smart phone, but a camera shooting
The quality of mould group is needed by Verification of Science, and the efficiency of one camera module of evaluation of general science is important using two
Index: resolution and contrast.Wherein resolution also known as parses power, resolution, and it is thin substantially to refer to that camera module reproduces subject
The ability of section, camera module resolution is higher, and image is more clear.Often have for the detection mode of camera module resolution at present
MTF (modulation transfer function), SFR (spatial frequency response) and CTF (contrast transfer function).
By taking SFR as an example, during existing SFR test, SFR tester table is easy to be influenced by detection environment,
The levelness of such as image, the distance taken pictures, in order to guarantee that the product of SFR tester table detection meets the requirement of client, generally
All the detection environment of more SFR tester tables in factory is set as unanimously, but these SFR tester tables are easy to appear many and ask
Topic causes SFR tester table for example, detection environment is easy to change because of factors such as the losses or human negligence of tester table
There is the phenomenon of test inaccuracy, and can not find and monitor in time at present these test environment in factory, causes not meeting visitor
The product of family standard flows out, and causes customer complaint；With batch mould group when different platform detects, the SFR test result performance of each board is not
Unanimously, SFR score value difference is more than 6 points, and board otherness is larger, stability is poor, and again without test software and survey
The standard evaluation method of examination detection environmental stability, it is low to cause SFR test result NG, test first-pass yield.
Summary of the invention
In view of this, the present invention provides a kind of monitoring method of measuring accuracy and the monitoring device of measuring accuracy, it can be convenient
It was found that problematic SFR detects board；Underproof SFR detection board is adjusted in time, can play the purpose of monitoring.
A kind of monitoring method of measuring accuracy, the monitoring method of the measuring accuracy the following steps are included:
Selected test sample, test sample is qualified product；
Multiple SFR are set up according to predetermined detection environment and detect board, and multiple SFR detection boards examine test sample
It surveys, and output test result, selects qualified SFR detection board according to testing result, qualified SFR detection board is for detecting
Mould set product to be measured；
Set point examines the time, detects mould set product to be measured, while timing using more qualified SFR detection boards, works as conjunction
When the SFR detection board work timing of lattice reaches the inspection time, qualified SFR detection board is sounded an alarm and is stopped working.
In the preferred embodiment, described to reach a little when qualified SFR detection board detects mould set product to be measured
When examining the time, test sample is detected using qualified SFR detection board, illustrates to close if detection show that test sample is qualified product
The SFR detection board of lattice still maintains qualification, and there is no variations for the predetermined detection environment of qualified SFR detection board；If inspection
Measuring out test sample is that rejected product then illustrates that qualified SFR detects board and becomes unqualified, and SFR detects the pre- regular inspection of board
It surveys environment and has occurred and that variation, then the predetermined detection environment of qualified SFR detection board is adjusted, until qualified SFR detection machine
Platform display is qualified.
In the preferred embodiment, the step of selected test sample includes:
One group of mould set product is provided, mould set product is detected, qualified product is picked out；
Client detects above-mentioned qualified product under predetermined detection environment, and client is detected as qualified mould set product and is chosen to be
Test sample.
In the preferred embodiment, described to select qualified product from group mould set product specifically: to be wanted according to client
Setting predetermined detection environment, criterion of acceptability value and scheduled measurement error are asked, when first detected under predetermined detection environment
Testing result compared with criterion of acceptability value be located at scheduled measurement error in the range of, illustrate mould set product be qualified product, otherwise for
Rejected product；
Client selectes test sample in qualified product specifically: and client detects above-mentioned qualified product under predetermined detection environment,
When the second testing result obtained compared with criterion of acceptability value be located at scheduled measurement error range in, illustrate mould set product for qualification
Product.
In the preferred embodiment, described to set up multiple SFR detection boards according to predetermined detection environment, it is multiple
SFR detection board detects test sample, and output test result, selects qualified SFR detection machine according to testing result
The step of platform, specifically includes: test sample is detected using multiple SFR detection board, when detection obtains test sample for qualified product then
Illustrate that SFR detection board is qualified, when detection show that test sample is that rejected product then illustrates that SFR detection board is unqualified.
In the preferred embodiment, described that conjunction is selected to the testing result of test sample according to SFR detection board
The step of SFR detection board of lattice, specifically includes: using SFR detection board detection test sample and third testing result is obtained,
When the third testing result of SFR detection board detection test sample is located at scheduled measurement error range compared with criterion of acceptability value
It is interior, illustrate that SFR detection board is qualified, is otherwise unqualified.
The present invention also provides a kind of monitoring device of measuring accuracy, include the following:
Selected unit, for selecting test sample, test sample is the qualified product of pre-selection；
Detection unit detects board for setting up multiple SFR according to predetermined detection environment, and multiple SFR detection boards are to inspection
Sample is detected, and output test result, so that qualified SFR detection board is selected in judgement according to testing result；
Point inspection unit, for recording the working time of detection unit, and when qualified SFR detection board work timing reaches
To inspection the time when send a warning.
In the preferred embodiment, the monitoring device of the measuring accuracy includes execution unit, is closed for selecting
The predetermined detection environment of the SFR detection board of lattice has occurred and that the board of variation, when qualified SFR detection board detects mould to be measured
When set product reaches the inspection time, test sample is detected with qualified SFR detection board, if detection obtains test sample for qualification
Product then illustrate that qualified SFR detection board is also qualified, and there is no variations for the predetermined detection environment of qualified SFR detection board；
Illustrate that qualified SFR detects board and becomes unqualified if detection show that test sample is rejected product, qualified SFR detection machine
The predetermined detection environment of platform has occurred and that variation.
In the preferred embodiment, the selected unit is provided for selecting test sample from mould set product
One group of mould set product picks out qualified product from mould set product；Client selectes test sample from qualified product again.
In the preferred embodiment, the monitoring device of the measuring accuracy further includes judging unit, for judging
Multiple SFR detect board acceptance or rejection, test sample are detected using multiple SFR detection board, when detection obtains detection sample
Product are that qualified product then illustrates that SFR detects board qualification, when detection show that test sample is that rejected product then illustrates that SFR detects board
It is unqualified.
The monitoring method of measuring accuracy of the invention detects board using test sample monitoring SFR, discovery can be facilitated to ask
The SFR of topic detects board；Underproof SFR detection board is adjusted in time, plays the purpose of monitoring；It can be directed to according to list
Property adjust SFR detection board, improve efficiency；For the predetermined detection environment of SFR detection board, make to detect machine frame in SFR
If when have establishing criteria；Detection for new product, is conducive to find and changes in the predetermined detection environment of new product
Unstable factor.
Detailed description of the invention
Fig. 1 is the flow diagram of the monitoring method of measuring accuracy of the invention.
Fig. 2 is the structural schematic diagram of the monitoring device of measuring accuracy of the invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to implementation of the invention
Mode is further described.
Fig. 1 is the flow diagram of the monitoring method of measuring accuracy of the invention.As shown in Figure 1, the prison of the measuring accuracy
Prosecutor method the following steps are included:
Step S1 selectes test sample, and test sample is qualified product.Specifically, step S1 specifically includes: S11 and provides one
Group mould set product, detects mould set product, picks out qualified product.Specifically, qualified product is selected from one group of mould set product
Are as follows: it is selected according to predetermined detection environment, criterion of acceptability value and the scheduled measurement error that customer requirement is set, when in predetermined detection ring
The first testing result detected under border in scheduled measurement error range, illustrates mould set product compared with criterion of acceptability value
It is otherwise rejected product for qualified product.In the present embodiment, predetermined detection environment specifically includes that take pictures image and SFR detection machine
The levelness of platform, intensity of illumination when taking pictures and the distance of taking pictures between camera and image.
In the present embodiment, group mould set product includes excellent product, qualified product and rejected product, selects excellent product, qualified product
It is detected with three kinds of products of rejected product, illustrates three kinds of products when detecting and can occur the same measurement error, it can be with
Guarantee that detection can carry out under identical conditions, eliminates the difference due to product category and the shadow of different measurement error occur
It rings, causes testing result not accurate enough.
S12, client detects above-mentioned qualified product under predetermined detection environment, and client is detected as qualified qualified product and is selected
For test sample.Specifically, client selectes test sample in qualified product are as follows: client detects above-mentioned conjunction under predetermined detection environment
Lattice product, when the second testing result obtained compared with criterion of acceptability value be located at scheduled measurement error range in, illustrate mould set product
For qualified product.
Step S2, setting up multiple SFR detection boards according to predetermined detection environment, (SFR is a kind of camera image resolution
Measurement method), multiple SFR detection boards detect test sample, and output test result, select according to testing result
Qualified SFR detects board, and qualified SFR detection board is for detecting mould set product to be measured.Specifically, it is examined using multiple SFR
It surveys board and detects test sample, when to show that test sample is that qualified product then illustrates that the SFR detects board qualified for detection, when detecting
Test sample is that rejected product then illustrates that SFR detection board is unqualified out, specifically, using SFR detection board detection detection
Sample simultaneously obtains third testing result, when the third testing result and criterion of acceptability value phase of SFR detection board detection test sample
Than being located in scheduled measurement error range, illustrates that SFR detection board is qualified product, be otherwise rejected product.
Step S3, set point examine the time, detect mould set product to be measured using more qualified SFR detection boards, count simultaneously
When, when qualified SFR detection board work timing reaches inspection time, qualified SFR detection board sounds an alarm and stops
Work.In the present embodiment, the point inspection time is set as 12 hours, but is not limited thereto, and it includes alarm dress that SFR, which detects board,
It sets, inspection software controls warning device, when SFR detection board work timing reaches the inspection time, inspection software control alarm
Device sounds an alarm, and SFR detection board stops working.
Step S4, when qualified SFR detection board, which detects mould set product to be measured, reaches inspection time, using qualified
SFR detects board and detects test sample, illustrates that qualified SFR detects board still if detection show that test sample is qualified product
Qualification is kept, there is no variations for the predetermined detection environment of qualified SFR detection board；If detection show that test sample is not conform to
Lattice product then illustrate that qualified SFR detection board becomes unqualified, and the predetermined detection environment of qualified SFR detection board has occurred and that
Variation then adjusts the predetermined detection environment of qualified SFR detection board, until qualified SFR detection board display is qualified.Judgement
The mode of SFR detection board qualification are as follows: when SFR detection board detection test sample, SFR detects board and generates a detection knot
Fruit, if the absolute value of the difference between testing result and criterion of acceptability value in scheduled measurement error range, illustrates that the SFR is examined
It is qualified to survey board；If the absolute value of the difference between testing result and criterion of acceptability value not in scheduled measurement error range,
Illustrate that SFR detection board is unqualified.In the present embodiment, SFR is adjusted in order to facilitate staff and detect board, by pre- regular inspection
Survey environment and be made into list, the list mainly include take pictures the levelness of image and SFR detection board, intensity of illumination when taking pictures and
The specific value of distance of taking pictures between camera and image.
In the present embodiment, the monitoring method of measuring accuracy is realized using the monitoring system of measuring accuracy, measuring accuracy
Monitoring system includes test sample and SFR detection board, and SFR detects board and detects test sample, is equipped in SFR detection board
Inspection software, inspection software are used to judge the detection data that SFR detection board generates and output test result.According to scheduled measurement
Error development logic judges formula, and is written in inspection software, the logic judgment formula principle are as follows: when the inspection of SFR detection board
Measured value and be stored in SFR detection board in criterion of acceptability value between difference absolute value in scheduled measurement error range,
Then illustrate that the mould set product to be measured is qualified；When SFR detects the detected value of board and the criterion of acceptability being stored in SFR detection board
The absolute value of difference between value then illustrates that the mould set product to be measured is unqualified not in scheduled measurement error range.
The monitoring method of measuring accuracy of the invention detects board using test sample monitoring SFR, discovery can be facilitated to ask
The SFR of topic detects board；Underproof SFR detection board is adjusted in time, plays the purpose of monitoring；It can be directed to according to list
Property adjust SFR detection board, improve efficiency；For the predetermined detection environment of SFR detection board, make to detect machine frame in SFR
If when have establishing criteria；Detection for new product, is conducive to find and changes in the predetermined detection environment of new product
Unstable factor.
Fig. 2 is the structural schematic diagram of the monitoring device of measuring accuracy of the invention.The present invention also provides a kind of measuring accuracies
Monitoring device 100, as shown in Fig. 2, the monitoring device 100 of measuring accuracy includes selected unit 101, detection unit 102, point inspection
Unit 103, execution unit 104 and judging unit 105.Selected unit 101 is pre-selection for selecting test sample, test sample
Qualified product specifically selectes unit 101 and is used to select test sample from mould set product, one group of mould set product is provided, from mould group
Product picks out qualified product, and client selectes test sample from qualified product again；Detection unit 102 is used for according to predetermined detection environment
Multiple SFR detection boards are set up, multiple SFR detection boards detect test sample, and output test result, thus according to
Qualified SFR detection board is selected in testing result judgement；Point inspection unit 103 is used to record the working time of detection unit, and
It sends a warning when qualified SFR detection board work timing reaches inspection time；Execution unit 104 is for selecting qualification
The predetermined detection environment of SFR detection board have occurred and that the board of variation, when qualified SFR detection board detects mould group to be measured
When product reaches the inspection time, test sample is detected with qualified SFR detection board, if detection show that test sample is qualified product
Then illustrate that qualified SFR detection board still maintains qualification, there is no becoming for the predetermined detection environment of qualified SFR detection board
Change；Illustrate that qualified SFR detects board and becomes unqualified if detection show that test sample is rejected product, qualified SFR inspection
The predetermined detection environment for surveying board has occurred and that variation；Judging unit 105 is for judging that multiple SFR detection boards are qualified or do not conform to
Lattice detect test sample using multiple SFR detection board, when detection show that test sample is that qualified product then illustrates SFR detection machine
Platform is qualified, when detection show that test sample is that rejected product then illustrates that SFR detection board is unqualified.
It is described the prefered embodiments of the present invention in detail above in conjunction with attached drawing, but the present invention is not limited to above-mentioned implementations
Detail in mode can carry out technical solution of the present invention a variety of simple within the scope of the technical concept of the present invention
Modification, these simple variants all belong to the scope of protection of the present invention.It is as described in the above specific embodiments each specific
Technical characteristic can be combined in any appropriate way in the case of no contradiction.In order to avoid unnecessary heavy
Multiple, the invention will not be further described in various possible combinations.
Claims (10)
1. a kind of monitoring method of measuring accuracy, which is characterized in that the monitoring method of the measuring accuracy the following steps are included:
Selected test sample, the test sample are qualified product；
Multiple SFR are set up according to predetermined detection environment and detect board, and multiple SFR detection board examines the test sample
It surveys, and output test result, qualified SFR is selected according to the testing result and detects board, the SFR detection board of the qualification is used for
Detect mould set product to be measured；
Set point examines the time, mould set product to be measured, while timing is detected using this more qualified SFR detection boards, when the conjunction
When the SFR detection board work timing of lattice reaches the inspection time, the SFR of qualification detects board and sounds an alarm and stop working.
2. the monitoring method of measuring accuracy as described in claim 1, which is characterized in that when the SFR detection board inspection of the qualification
When surveying mould set product to be measured and reaching the inspection time, which is detected using the SFR detection board of qualification, is obtained if detecting
The test sample is that qualified product then illustrates that the SFR of the qualification detects board and still maintains qualified, the SFR detection board of the qualification
There is no variations for predetermined detection environment；Illustrate the SFR detection of the qualification if detection show that the test sample is rejected product
Board becomes unqualified, and the predetermined detection environment of the SFR detection board of the qualification has occurred and that variation, then adjusts the qualification
SFR detects the predetermined detection environment of board, until the SFR detection board display of the qualification is qualified.
3. the monitoring method of measuring accuracy as described in claim 1, which is characterized in that the step of selecting test sample packet
It includes:
One group of mould set product is provided, which is detected, qualified product is picked out；
Client detects above-mentioned qualified product under the predetermined detection environment, and client is detected as qualified mould set product and is chosen to be inspection
Sample.
4. the monitoring method of measuring accuracy as claimed in claim 3, which is characterized in that select qualification from this group of mould set product
Product specifically: predetermined detection environment, criterion of acceptability value and scheduled measurement error are set according to customer requirement, when in the predetermined detection
The first testing result detected under environment is located in the scheduled measurement error range compared with the criterion of acceptability value, illustrates this
Mould set product is qualified product, is otherwise rejected product；
Client selectes test sample in qualified product specifically: and client detects above-mentioned qualified product under predetermined detection environment, when
The second testing result out is located in the scheduled measurement error range compared with the criterion of acceptability value, illustrates the mould set product to close
Lattice product.
5. the monitoring method of measuring accuracy as claimed in claim 4, which is characterized in that set up according to predetermined detection environment multiple
SFR detects board, and multiple SFR detection board detects the test sample, and output test result, according to the detection knot
The step of SFR that fruit selects qualification detects board specifically includes: the test sample is detected using multiple SFR detection board, when
Detection show that the test sample is that qualified product then illustrates that the SFR detects board qualification, when detection show that the test sample is not conform to
Lattice product then illustrate that SFR detection board is unqualified.
6. the monitoring method of measuring accuracy as claimed in claim 5, which is characterized in that described to select conjunction according to the testing result
The step of SFR detection board of lattice, specifically includes: detecting the test sample using SFR detection board and obtains third detection knot
Fruit, when the third testing result of SFR detection board detection test sample is located at the scheduled measurement compared with the criterion of acceptability value
In error range, illustrates that SFR detection board is qualified, be otherwise unqualified.
7. a kind of monitoring device of measuring accuracy, which is characterized in that the monitoring device (100) of the examination precision include the following:
Selected unit (101), for selecting test sample, which is the qualified product of pre-selection；
Detection unit (102) detects board for setting up multiple SFR according to predetermined detection environment, and multiple SFR detects board pair
The test sample is detected, and output test result, to select qualified SFR detection machine according to testing result judgement
Platform；
Point inspection unit (103), for recording the working time of the detection unit, and when qualified SFR detection board work meter
When send a warning when reaching the inspection time.
8. the monitoring device of measuring accuracy as claimed in claim 7, which is characterized in that the monitoring device of the examination precision includes holding
Row unit (104), the predetermined detection environment that the SFR for selecting the qualification detects board has occurred and that the board of variation, when this
When qualified SFR detection board detects mould set product to be measured and reaches inspection time, board is detected with the SFR of qualification and detects the inspection
Sample illustrates that the SFR of the qualification detects board and still maintains qualified, the conjunction if detection show that the test sample is qualified product
There is no variations for the predetermined detection environment of the SFR detection board of lattice；It is said if detection show that the test sample is rejected product
The SFR detection board of the bright qualification becomes unqualified, and the predetermined detection environment of the SFR detection board of the qualification has occurred and that change
Change.
9. the monitoring device of measuring accuracy as claimed in claim 7, which is characterized in that selected unit (101) are used for from mould
Test sample is selected in set product, and one group of mould set product is provided, picks out qualified product from the mould set product, client is again from the qualification
Test sample is selected in product.
10. the monitoring device of measuring accuracy as claimed in claim 7, which is characterized in that the monitoring device of the examination precision also wraps
Judging unit (105) are included, for judging multiple SFR detection board acceptance or rejection, using multiple SFR detection board inspection
The test sample is surveyed, when detection show that the test sample is that qualified product then illustrates that the SFR detects board qualification, when detection obtains this
Test sample is that rejected product then illustrates that SFR detection board is unqualified.
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Address after: No.3, Taihong Road, Kunshan high tech Industrial Development Zone, Suzhou, Jiangsu Province, 215300 Patentee after: Kunshan Qiuti Microelectronics Technology Co.,Ltd. Address before: No.3, Taihong Road, Kunshan high tech Industrial Development Zone, Suzhou, Jiangsu Province, 215300 Patentee before: KUNSHAN Q TECHNOLOGY Co.,Ltd. |