CN106934313A - A kind of Quick Response Code decoding algorithm contrast verification system - Google Patents
A kind of Quick Response Code decoding algorithm contrast verification system Download PDFInfo
- Publication number
- CN106934313A CN106934313A CN201710177262.9A CN201710177262A CN106934313A CN 106934313 A CN106934313 A CN 106934313A CN 201710177262 A CN201710177262 A CN 201710177262A CN 106934313 A CN106934313 A CN 106934313A
- Authority
- CN
- China
- Prior art keywords
- barcode scanning
- scanning gun
- mipi
- quick response
- cmos sensor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10544—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum
- G06K7/10821—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum further details of bar or optical code scanning devices
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/14—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation using light without selection of wavelength, e.g. sensing reflected white light
- G06K7/1404—Methods for optical code recognition
- G06K7/1408—Methods for optical code recognition the method being specifically adapted for the type of code
- G06K7/1417—2D bar codes
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Electromagnetism (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Artificial Intelligence (AREA)
- Computer Vision & Pattern Recognition (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Image Input (AREA)
Abstract
The present invention relates to a kind of Quick Response Code decoding algorithm contrast verification system, mainly solve the comparing result degree of accuracy present in prior art low, the technical problem of complex operation, the present invention includes barcode scanning gun by using, the on-off circuit switching device being connected with barcode scanning gun, arm processor and host computer, on-off circuit switching device are also connected with MIPI decoding apparatus and fpga chip；Arm processor is also connected with MIPI decoding apparatus, host computer and fpga chip；MIPI decoding apparatus are also connected with fpga chip, can be used in the actual design of Quick Response Code algorithm.
Description
Technical field
The present invention relates to Quick Response Code decoding algorithm field, a kind of Quick Response Code decoding algorithm contrast verification system is related specifically to
System.
Background technology
For Quick Response Code decoding algorithm newly developed, to verify the decoding capability of the Quick Response Code decoding algorithm, and and other
The decoding capability contrast of Quick Response Code decoding algorithm.First developed the existing barcode scanning of Quick Response Code decoding algorithm decoding capability and market
Rifle decoding capability be it is strong, it is secondary or identical.
After existing contrast verification generally carries out each self-demarking code using manual type using two decoding algorithms, decoding is tied
Fruit is contrasted.It is present because decoding condition and the inconsistent caused comparing result accuracy rate of environment are low, and method complexity is cumbersome
Technical problem.Therefore it provides a kind of comparing result accuracy rate is high, the Quick Response Code decoding algorithm contrast verification of high degree of automation
System is just necessary.
The content of the invention
The technical problems to be solved by the invention are that comparing result accuracy rate present in prior art is low, and complex operation is numerous
Trivial technical problem.There is provided a kind of new Quick Response Code decoding algorithm contrast verification system, the system has high degree of automation, right
The characteristics of higher than result accuracy rate.
In order to solve the above technical problems, the technical scheme for using is as follows：
A kind of Quick Response Code algorithm contrast verification system, the system includes barcode scanning gun, the switch being connected with the barcode scanning gun
Circuit switch device, arm processor and host computer, the on-off circuit switching device also with MIPI decoding apparatus and fpga chip
Connection；The arm processor is also connected with MIPI decoding apparatus, host computer and fpga chip；The MIPI decoding apparatus also with
The fpga chip is connected；The fpga chip is used to control the on-off circuit to walk around connection device, and fpga chip includes FLASH
Module；The barcode scanning gun includes cmos sensor, and the cmos sensor is by the on-off circuit switching device and barcode scanning gun
Central processing unit is connected；The barcode scanning gun button being connected with barcode scanning gun central processing unit；The barcode scanning gun button also with the ARM at
Reason device connection；The barcode scanning gun central processing unit is also connected with the host computer；The on-off circuit switching device includes two choosings
One switch, for the connection of control selections cmos sensor and MIPI decoding apparatus and barcode scanning gun central processing unit；The MIPI
Decoding apparatus are changed for bi-directional data, and the bi-directional data is converted to parallel port-MIPI and MIPI- parallel ports；The host computer is used
In comparison chart is as quality comparison calculation and controls the arm processor and barcode scanning gun central processing unit.
It is optimization in such scheme, further, the cmos sensor is by on-off circuit switching device to barcode scanning gun
The line length of central processing unit is equal to and the circuit by on-off circuit switching device and MIPI decoding apparatus to arm processor
Length.
Further, the either-or switch includes first switch unit, second switch unit and the 3rd switch element；Institute
It is connected with first switch unit after stating second switch unit and the parallel connection of the 3rd switch element；The first switch, second switch list
Unit is for controlling the cmos sensor to be connected with MIPI decoding apparatus；3rd switch element is used to control cmos sensor
It is connected with the barcode scanning gun central processing unit.
Further, the Quick Response Code algorithm contrast verification system also includes three axle motors being connected with host computer, with three
The support of axle motor connection, the support is used for accelerated scan rifle, the LCD1 being connected with the FLASH；The LCD1 is used to show
Show the two-dimension code image in storage and FLASH；The three axles motor is relative with LCD1 for adjusting scanner cmos sensor
Position, including X-axis motor, Y-axis motor and Z axis motor；The Z axis motor is used to adjust horizontal stand from shooting grease head highness；The X
Axle motor is used to adjust deflection angle of the Z axis horizontal stand in X-axis；The Y-axis motor is used to adjust Y-axis horizontal stand in Y-axis
Deflection angle.
The present invention also provides a kind of application method based on Quick Response Code algorithm contrast verification system, and methods described includes：
(1) period parameters before being detected using oscillograph, the preceding period parameters include that the scanner receives picture size, CMOS
Sensor output signal form, the cmos sensor output signal form is MIPI or parallel port；
(2) hardware circuit is connected, Quick Response Code algorithm contrast verification system is constituted；
(3) outside two-dimension code image is directed at using scanner, cmos sensor collection two-dimension code image in the scanner
Data, scanner central processing unit and arm processor distinguish decoding process gathered data, and the cmos sensor output data is
MIPI, then the MIPI conversion equipments carry out the conversion of MIPI- parallel ports；
(4) consequential signal that will be decoded prints to host computer, picture quality comparison is carried out to print result, according to image
Quality versus draw contrast verification result.
It is optimization in such scheme, further, the step (3) also includes：
(A) the internal two-dimension code image of storage two-dimension code image conduct in FLASH in advance；
(B) press barcode scanning gun button to transfer the inside two-dimension code image deposited in FLASH and be displayed on LCD1 manually, hand
Two-dimension code image in control scanner alignment LCD1, cmos sensor collection two-dimension code image data；
(C) scanner central processing unit and arm processor difference decoding process gathered data, barcode scanning gun center treatment
It is MIPI that device receives data, then the MIPI conversion equipments carry out parallel port-MIPI conversions.
Further, the step (B) also includes：
A () PC control automatic mode starts, a two-dimension code image is sequentially transferred from FLASH as internal two dimension
Code pictorial information is shown on LCD1；
B () sets three axle motors, control the scanner cmos sensor with the position of LCD1 and apart from corresponding；
Cmos sensor collection two-dimension code image data in (c) described arm processor control scanner.
Further, three axle motors of the setting include：Z axis motor is set, and adjustment horizontal stand is from shooting grease head highness；Set
X-axis motor horizontal stand is contrasted in X-axis upper deflecting angle using acceleration of gravity detection angles and with given threshold, and gravity accelerates
Degree detection angles then enter next step not less than given threshold XS, and the acceleration of gravity detection angles are not less than given threshold
XS then repeats this step；Y-axis motor horizontal stand is set in Y-axis upper deflecting angle, using acceleration of gravity detection angles and with set
Determine threshold comparison, acceleration of gravity detection angles then enter next step, the acceleration of gravity inspection not less than given threshold YS
Measuring angle then repeats this step not less than given threshold YS.
Further, the scanner receives picture size detection and includes using oscilloscope measurement two signals of HS and VS,
Calculate scanner and receive picture size.
Further, the detection cmos sensor output signal form includes that measuring CMOS using oscilloscope measurement passes
Sensor output signal, output signal is that D0~D7/HS/VS/PLCK signals are then parallel port output signal；Output signal is CLK_N/
CLKP, D0_N/D0_P differential pair form are then MIPI signals.
The present invention can be by on-off circuit pinboard by use, and the cmos sensor output signal carried to barcode scanning gun is entered
Row monitoring, the signal of cmos sensor output has not only been connected in barcode scanning gun on central processing unit, while being also coupled to arm processor
On, arm processor deposits Quick Response Code decoding algorithm to be contrasted.After barcode scanning gun is directed at Quick Response Code, by the button in barcode scanning gun,
The system that scanner is carried can start gathered data and be decoded, while the hardware system of oneself also gathers current data carrying out
Decoding.
In order to improve comparing result precision, the line length of two-way can be controlled appropriate and equal, it is possible to increase environment and data
Homogeneity.
Beneficial effects of the present invention：
Effect one, improves the comparing result degree of accuracy；
Effect two, improves test automation degree, improves convenient degree；
Effect three, due to improve automatic test degree, therefore reduces human cost.
Brief description of the drawings
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1, Quick Response Code decoding algorithm contrast verification system schematic.
Fig. 2, the data flow schematic diagram of contrast verification experiment is carried out according to outside two-dimension code image.
Fig. 3, the schematic flow sheet of contrast verification experiment is carried out according to outside two-dimension code image.
Fig. 4, the two-dimension code image according to advance storage carries out the data flow schematic diagram of contrast verification experiment.
Fig. 5, the two-dimension code image according to advance storage carries out the schematic flow sheet transferred manually in contrast verification experiment.
Fig. 6, the two-dimension code image according to advance storage carries out the automatic schematic flow sheet transferred in contrast verification experiment.
In accompanying drawing, 1- first switch units, 2- second switch units, the switch elements of 3- the 3rd.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to
Limit the present invention.
Embodiment 1.
The present embodiment provides a kind of Quick Response Code algorithm contrast verification system and its application method.The Quick Response Code algorithm contrast
Checking system as shown in figure 1, including barcode scanning gun, the on-off circuit switching device being connected with the barcode scanning gun, arm processor and on
Position machine, the on-off circuit switching device is also connected with MIPI decoding apparatus and fpga chip；The arm processor also with MIPI
The connection of decoding apparatus, host computer and fpga chip；The MIPI decoding apparatus are also connected with the fpga chip；The FPGA cores
Piece is used to control the on-off circuit to walk around connection device, and fpga chip includes FLASH modules；The barcode scanning gun is sensed including CMOS
Device, the cmos sensor is connected by the on-off circuit switching device with barcode scanning gun central processing unit；With barcode scanning gun center
The barcode scanning gun button of processor connection；The barcode scanning gun button is also connected with the arm processor；Barcode scanning gun center treatment
Device is also connected with the host computer；The on-off circuit switching device includes either-or switch, for control selections CMOS sensings
The connection of device and MIPI decoding apparatus and barcode scanning gun central processing unit；The MIPI decoding apparatus are changed for bi-directional data, institute
State bi-directional data and be converted to parallel port-MIPI and MIPI- parallel ports；The host computer is used for comparison chart as quality comparison calculation and control
The arm processor and barcode scanning gun central processing unit.Host computer can use PC.Ensure that under identical environment, same frame
Image, two systems carry out decoding contrast verification simultaneously
Preferably, line length etc. of the cmos sensor by on-off circuit switching device to barcode scanning gun central processing unit
In with the line length by on-off circuit switching device and MIPI decoding apparatus to arm processor.Environment and two can be improved
The accuracy and homogeneity of code decoding data are tieed up, reduces the error of contrast verification result.Improve environment and image in 2 D code
Uniformity.
Preferably, either-or switch can use first switch unit, second switch unit and the 3rd switch element；It is described
It is connected with first switch unit after second switch unit and the parallel connection of the 3rd switch element；The first switch, second switch unit
For controlling the cmos sensor to be connected with MIPI decoding apparatus；3rd switch element be used for control cmos sensor with
The barcode scanning gun central processing unit is connected.Switching function can be in more detail realized by 3 switch elements.
Preferably, Quick Response Code algorithm contrast verification system also includes the LCD1 being connected with the FLASH, for according in
Portion stores the test of the two-dimension code image in FLASH, and three axle motors being connected with host computer are internally stored in for basis
The automatic test of two-dimension code image in FLASH, the support being connected with three axle motors, the support is used for accelerated scan rifle；LCD1
For showing the two-dimension code image in storage and FLASH；The three axles motor is used to adjust scanner cmos sensor and LCD1
Relative position, including X-axis motor, Y-axis motor and Z axis motor；The Z axis motor is used to adjust horizontal stand from shooting head height
Degree；The X-axis motor is used to adjust deflection angle of the Z axis horizontal stand in X-axis；The Y-axis motor is used to adjust Y-axis horizontal stand
Deflection angle in Y-axis.The automaticity of energy Gu Tigao tests, further reduces the cumbersome degree of test, reduction human cost.
If Fig. 2 and Fig. 3, Fig. 2 are signal flow graph, Fig. 3 is flow chart.
The present embodiment also provides a kind of application method based on foregoing Quick Response Code algorithm contrast verification system, including：
(1) period parameters before being detected using oscillograph, the preceding period parameters include that the scanner receives picture size, CMOS
Sensor output signal form, the cmos sensor output signal form is MIPI or parallel port；Specially：Scanner receives figure
As size detection includes using oscilloscope measurement two signals of HS and VS, calculate scanner and receive picture size；CMOS is sensed
Device output signal format detection includes measuring cmos sensor output signal using oscilloscope measurement, and output signal is D0~D7/
HS/VS/PLCK signals are then parallel port output signal；Output signal is then for CLK_N/CLKP, D0_N/D0_P differential pair form
MIPI signals；
(2) hardware circuit is connected, Quick Response Code algorithm contrast verification system is constituted；
(3) outside two-dimension code image is directed at using scanner, cmos sensor collection two-dimension code image in the scanner
Data, scanner central processing unit and arm processor distinguish decoding process gathered data, and the cmos sensor output data is
MIPI, then the MIPI conversion equipments carry out the conversion of MIPI- parallel ports；
(4) consequential signal that will be decoded prints to host computer, picture quality comparison is carried out to print result, according to image
Quality versus draw contrast verification result.
The step (3) is also included according to the test for being internally stored in two-dimension code image in FLASH：
(A) the internal two-dimension code image of storage two-dimension code image conduct in FLASH in advance；
(B) it is to press barcode scanning gun button to transfer the inside two-dimension code image deposited in FLASH manually to transfer mode manually
It is displayed on LCD1, two-dimension code image in hand control scanner alignment LCD1, cmos sensor collection two-dimension code image data；
(C) scanner central processing unit and arm processor difference decoding process gathered data, barcode scanning gun center treatment
It is MIPI that device receives data, then the MIPI conversion equipments carry out parallel port-MIPI conversions.
Step (B) also includes transferring mode automatically, including：
A () PC control automatic mode starts, a two-dimension code image is sequentially transferred from FLASH as internal two dimension
Code pictorial information is shown on LCD1；
B () sets three axle motors, control the scanner cmos sensor with the position of LCD1 and apart from corresponding；
Cmos sensor collection two-dimension code image data in (c) described arm processor control scanner.
The automatic method for transferring setting cmos sensor and LCD1 relative positions in mode is specially setting Z axis motor, adjusts
Whole horizontal stand is from shooting grease head highness；X-axis motor horizontal stand is set in X-axis upper deflecting angle, acceleration of gravity detection angles are used
And contrasted with given threshold, acceleration of gravity detection angles then enter next step not less than given threshold XS, and the gravity adds
Velocity measuring angle then repeats this step not less than given threshold XS；Y-axis motor horizontal stand is set in Y-axis upper deflecting angle, is made
Contrasted with acceleration of gravity detection angles and with given threshold, acceleration of gravity detection angles then enter not less than given threshold YS
Next step, the acceleration of gravity detection angles then repeat this step not less than given threshold YS.
Although being described to illustrative specific embodiment of the invention above, in order to the technology of the art
Personnel are it will be appreciated that the present invention, but the present invention is not limited only to the scope of specific embodiment, to the common skill of the art
For art personnel, as long as long as various change is in appended claim restriction and the spirit and scope of the invention for determining, one
The innovation and creation using present inventive concept are cut in the row of protection.
Claims (4)
1. a kind of Quick Response Code decoding algorithm contrast verification system, it is characterised in that：The system includes barcode scanning gun, with the barcode scanning
The on-off circuit switching device of rifle connection, arm processor and host computer, the on-off circuit switching device are also decoded with MIPI and filled
Put and fpga chip connection；The arm processor is also connected with MIPI decoding apparatus, host computer and fpga chip；The MIPI
Decoding apparatus are also connected with the fpga chip；
The fpga chip is used to control the on-off circuit to walk around connection device, and fpga chip includes FLASH modules；
The barcode scanning gun includes cmos sensor, and the cmos sensor is by the on-off circuit switching device and barcode scanning gun
Central processor is connected；The barcode scanning gun button being connected with barcode scanning gun central processing unit；The barcode scanning gun button also with the ARM treatment
Device is connected；The barcode scanning gun central processing unit is also connected with the host computer；
The on-off circuit switching device includes either-or switch, for control selections cmos sensor and MIPI decoding apparatus and
The connection of barcode scanning gun central processing unit；
The MIPI decoding apparatus are changed for bi-directional data, and the bi-directional data is converted to parallel port-MIPI and MIPI- parallel ports；
The host computer is used for comparison chart as quality comparison calculation and controls the arm processor and barcode scanning gun central processing unit.
2. Quick Response Code decoding algorithm contrast verification system according to claim 1, it is characterised in that：The cmos sensor leads to
Cross on-off circuit switching device to the line length of barcode scanning gun central processing unit be equal to by on-off circuit switching device and
Line length of the MIPI decoding apparatus to arm processor.
3. Quick Response Code decoding algorithm contrast verification system according to claim 1, it is characterised in that：The either-or switch bag
Include first switch unit (1), second switch unit (2) and the 3rd switch element (3)；The second switch unit (2) and the 3rd
It is connected with first switch unit (1) after switch element (3) parallel connection；The first switch (1), second switch unit (2) are for controlling
The cmos sensor is made to be connected with MIPI decoding apparatus；3rd switch element (3) is for controlling cmos sensor and institute
Barcode scanning gun central processing unit is stated to be connected.
4. Quick Response Code decoding algorithm contrast verification system according to claim 1, it is characterised in that：The Quick Response Code algorithm pair
Also include three axle motors being connected with host computer than checking system, the support being connected with three axle motors, the support is used to accelerate
Scanner, the LCD1 being connected with the FLASH；
The LCD1 is used to show the two-dimension code image in storage and FLASH；
The three axles motor is used to adjust the relative position of scanner cmos sensor and LCD1, including X-axis motor, Y-axis motor
And Z axis motor；
The Z axis motor is used to adjust horizontal stand from shooting grease head highness；
The X-axis motor is used to adjust deflection angle of the Z axis horizontal stand in X-axis；
The Y-axis motor is used to adjust deflection angle of the Y-axis horizontal stand in Y-axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710177262.9A CN106934313B (en) | 2017-03-23 | 2017-03-23 | Two-dimensional code decoding algorithm comparison verification system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710177262.9A CN106934313B (en) | 2017-03-23 | 2017-03-23 | Two-dimensional code decoding algorithm comparison verification system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106934313A true CN106934313A (en) | 2017-07-07 |
| CN106934313B CN106934313B (en) | 2020-07-14 |
Family
ID=59426282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710177262.9A Active CN106934313B (en) | 2017-03-23 | 2017-03-23 | Two-dimensional code decoding algorithm comparison verification system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106934313B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113835689A (en) * | 2021-09-14 | 2021-12-24 | 深圳市长龙铁路电子工程有限公司 | Decoding algorithm verification method and device, electronic equipment and storage medium |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201262751Y (en) * | 2008-09-01 | 2009-06-24 | 无锡市同威科技有限公司 | Control circuit structure for bar-code scanning gun |
| CN104112152A (en) * | 2013-10-30 | 2014-10-22 | 北京安捷天盾科技发展有限公司 | Two-dimensional code generation device, human image identification device and identity verification device |
| JP2015055985A (en) * | 2013-09-11 | 2015-03-23 | 三菱製紙株式会社 | Point giving system |
| CN104581151A (en) * | 2015-02-05 | 2015-04-29 | 昆山软龙格自动化技术有限公司 | Image detection device based on parallel transition board card |
-
2017
- 2017-03-23 CN CN201710177262.9A patent/CN106934313B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201262751Y (en) * | 2008-09-01 | 2009-06-24 | 无锡市同威科技有限公司 | Control circuit structure for bar-code scanning gun |
| JP2015055985A (en) * | 2013-09-11 | 2015-03-23 | 三菱製紙株式会社 | Point giving system |
| CN104112152A (en) * | 2013-10-30 | 2014-10-22 | 北京安捷天盾科技发展有限公司 | Two-dimensional code generation device, human image identification device and identity verification device |
| CN104581151A (en) * | 2015-02-05 | 2015-04-29 | 昆山软龙格自动化技术有限公司 | Image detection device based on parallel transition board card |
Non-Patent Citations (1)
| Title |
|---|
| 马超: "基于人工智能算法的QR码识别系统应用与比较", 《中国优秀硕士学位论文全文数据库 信息科技辑》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113835689A (en) * | 2021-09-14 | 2021-12-24 | 深圳市长龙铁路电子工程有限公司 | Decoding algorithm verification method and device, electronic equipment and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106934313B (en) | 2020-07-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106468668B (en) | Industrial camera cylinder detection method | |
| CN104155310B (en) | 360 degree of detection devices of roller open defect and method | |
| TWI512302B (en) | Detection system and its detection method | |
| CN106885622B (en) | A kind of big visual field multiple spot three-dimensional vibrating measurement method | |
| CN105424324B (en) | A kind of device for being used to carry out cmos image sensor nonlinear parameter real-time testing | |
| TWI566579B (en) | Detecting device for display and detecting method thereof | |
| CN104460064A (en) | Automatic optical detection mechanism of liquid crystal module | |
| CN204479864U (en) | A kind of automatic optical detector structure of liquid crystal module | |
| CN107633187A (en) | A kind of method and terminal for testing barcode scanning performance | |
| CN109464148A (en) | Measure the apparatus and system of spinal curvature | |
| CN101635130B (en) | System and method for adjusting brightness point by point | |
| CN101603817B (en) | Glass thickness detection device and method | |
| US8736914B2 (en) | Image scanning apparatus and methods of using the same | |
| CN106934313A (en) | A kind of Quick Response Code decoding algorithm contrast verification system | |
| CN103575461B (en) | Sensor check system and method | |
| CN103300874A (en) | Image generating method, image generating apparatus and radiation tomographic imaging apparatus, and program therefor | |
| CN204759438U (en) | Two -dimensional code printing product examine article machine | |
| CN106971125A (en) | A kind of Quick Response Code decoding algorithm contrast verification method | |
| AU2012325242B2 (en) | Optical device and method for measuring a complexly formed object | |
| CN209570521U (en) | Plume one camera repeats vision inspection apparatus | |
| JP6110512B2 (en) | Near infrared inspection equipment | |
| CN103901039A (en) | Detection system | |
| CN205262998U (en) | Electronic components detects machine and detection device | |
| CN113608105A (en) | Probe station drive configuration method and system in chip CP test | |
| CN208570554U (en) | A kind of chip exfactory inspection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |