CN205539254U - Charactron detecting system - Google Patents
Charactron detecting system Download PDFInfo
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- CN205539254U CN205539254U CN201620195169.1U CN201620195169U CN205539254U CN 205539254 U CN205539254 U CN 205539254U CN 201620195169 U CN201620195169 U CN 201620195169U CN 205539254 U CN205539254 U CN 205539254U
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- charactron
- controller
- processing module
- image
- image processing
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Abstract
The utility model discloses a charactron detecting system, including controller, image acquisition device and image processing module, the first output of controller is connected with the PCB's who installs the bei ce charactron input electricity, and the second output of controller is connected with image processing module's first input end electricity, and the controller is configured as to the corresponding demonstration signal of image processing module input, image acquisition device's output and image processing module's second input electricity is connected, after being applicable to the bei ce charactron and carrying out corresponding demonstration, takes a picture to the beice charactron and obtains display image, image processing module is configured as and receives the demonstration signal and read display image, according to showing that the display image after signal and the processing judges whether the charactron normally shows. Its automated inspection who has realized the bei ce charactron, and do not need the manual work to judge, consequently effectively solved traditional artifical mode that detects the charactron result in detection efficiency low with the testing result problem of accuracy inadequately.
Description
Technical field
This utility model relates to charactron detection technique field, particularly relates to a kind of charactron detecting system.
Background technology
Along with the development of science and technology, various electronic products more and more enter in the live and work of people.
Generally, its quality and performance the most all can be detected, especially to electronics by every kind of electronic product
Charactron on the printed circuit board (PCB) (that is, Printed circuit board is called for short pcb board) of product is examined
Survey, to guarantee that charactron can normally and accurately show.The method of traditional detection charactron, it is common that
Detection person is relied on to estimate.That is, by controlling opening or closing of charactron, detection person's naked eyes judge
Charactron the most normally shows, and charactron display whether meet preset requirement.But, usual electronics
Product is all batch production, and the charactron quantity thus needing detection is bigger.Iff relying on detection person's meat
Eye detection, then need to take a substantial amount of time and manpower, had a strong impact on detection efficiency.Further, people is passed through
Work identification numeral method, it is easy to affected by extraneous factor, causes testing result the most accurate.
Utility model content
Based on this, it is necessary to the mode for traditional manual detection charactron causes detection efficiency low and inspection
Survey the accurate not problem of result, it is provided that a kind of charactron detecting system.
For realizing a kind of charactron detecting system that this utility model purpose provides, obtain including controller, image
Fetching is put and image processing module；
First outfan of described controller electrically connects with the input of the PCB being provided with tested charactron, institute
The first input end of the second outfan and described image processing module of stating controller electrically connects；And
Described controller, is configured to described PCB input test signal, and control on described PCB is described
Charactron shows accordingly, and shows signal accordingly to the input of described image processing module simultaneously；
The outfan of described image acquiring device electrically connects with the second input of described image processing module, suitable
After described tested charactron shows accordingly, acquisition display image that described tested charactron is taken pictures；
Described image processing module, is configured to receive described display signal and read described display image, root
Judge that described charactron the most normally shows according to the described display image after described display signal and process.
Wherein in an embodiment, described display signal is: to described tested charactron at described test letter
Number the lower normal display of excitation after normal picture carry out the positive usual coordinates obtained by after coordinatograph and color filtering
Normal digital signal after value and normal color value analog-to-digital conversion；
Described display image after process is: described display image carries out gained after coordinatograph and color filtering
Actual digital signal after the actual coordinate value arrived and actual color value analog-to-digital conversion.
Wherein in an embodiment, also include mobile terminal；
Described image processing module is installed on mobile terminals；And
Second outfan of described controller is by the serial ports of described mobile terminal and described image processing module
First input end electrically connects；
The outfan of described image acquiring device is by the USB interface of described mobile terminal and described image procossing
Second input electrical connection of module.
Wherein in an embodiment, described mobile terminal is computer.
Wherein in an embodiment, also include test fixture；
Described test fixture is provided with fixed part and connects thimble；
Described fixed part, it is adaptable to fixing described PCB；
First outfan of described controller is electrically connected with the input of described PCB by described connection thimble.
Wherein in an embodiment, described test fixture is additionally provided with fixed support；Described Image Acquisition fills
Put and be fixed on described fixed support.
Wherein in an embodiment, described controller is analogue-key controller.
Wherein in an embodiment, described test signal is: the input of described analogue-key controller is to described
The high and low level of the continuous print predetermined number of PCB.
Wherein in an embodiment, described analogue-key controller is provided with startup button；
Described analogue-key controller, is additionally configured to the clicked state according to described startup button, to institute
State PCB and input described test signal.
Wherein in an embodiment, described image acquiring device is industrial camera.
The beneficial effect of above-mentioned charactron detecting system:
The input of its first outfan with the PCB being provided with tested charactron by arranging controller is electrically connected
Connect so that controller can receive according to PCB controlling tested charactron to PCB input test signal
Test signal show accordingly, and arrange controller second outfan electrical connection image processing module
First input end so that controller can export and corresponding with testing signal display signal to image procossing mould
Block.Meanwhile, also by arranging image acquiring device, image acquiring device tested charactron is taken pictures
Obtain the display image after tested charactron shows accordingly, and then read figure by image processing module again
The display image obtained as acquisition device, and according to the display signal sent by controller received and reading
The display of tested charactron is judged by the display image got, thus realizes the detection of tested charactron.
It need to can be realized the automatic of tested charactron by testing staff by controller input corresponding test signal
Detection, is effectively increased detection efficiency.And, it is not necessary to artificial naked eyes obtain testing result so that detection
Result is more accurate.The mode finally efficiently solving traditional manual detection charactron causes detection efficiency low
The accurate not problem of lower and testing result.
Accompanying drawing explanation
Fig. 1 is the structural representation of a specific embodiment of charactron detecting system of the present utility model；
Fig. 2 is the structural representation of another specific embodiment of charactron detecting system of the present utility model.
Detailed description of the invention
For making technical solutions of the utility model clearer, below in conjunction with drawings and the specific embodiments to this practicality
Novel it is described in further detail.
Seeing Fig. 1, as a specific embodiment of charactron detecting system 100 of the present utility model, it includes
Controller 110, image acquiring device 120 and image processing module 130.Wherein, the first of controller 110
Outfan electrically connects with the input of the PCB200 being provided with tested charactron (not shown), for
PCB200 input test signal, the tested charactron controlled on PCB200 shows accordingly.Meanwhile,
Second outfan of controller 110 electrically connects with the first input end of image processing module 130, for
While PCB200 input test signal, also to image processing module 130 input with test that signal is corresponding shows
Show signal.
Meanwhile, the outfan of image acquiring device 120 is electrically connected with the second input of image processing module 130
Connect, after tested charactron shows under the excitation of test signal accordingly, tested charactron is entered
Row is taken pictures and is shown image accordingly to obtain.Wherein, in charactron detecting system 100 of the present utility model
In one specific embodiment, image acquiring device 120 control of taking pictures tested charactron can pass through image procossing
Module 130 realizes.That is, receive, when image processing module 130, the display signal that controller 110 sends
After, open at the imaged acquisition device of Preset Time internal control 120 so that image acquiring device 120 is to tested
Charactron is taken pictures.Herein, it should be noted that Preset Time is that PCB200 receives test signal,
Tested charactron is according to testing the time after signal shows accordingly.Further, image processing module 130
It is additionally configured to receive the display signal that controller 110 sends the display figure reading image collection module acquisition
Picture, the most normally shows according to the display image log code pipe after display signal and process and judges, from
And obtain final testing result.
It is by arranging controller 110, image acquiring device 120 and image processing module 130 as charactron
Detecting system 100, controller 110 the tested charactron controlled on PCB200 shows accordingly, by
Tested charactron is captured by image acquiring device 120, obtains after tested charactron shows accordingly
Display image, and then the theoretic display sent according to controller 110 by image processing module 130 again
Signal and the display image of actual tested charactron, the most normally show tested charactron and judge,
Thus realize the detection of charactron.It needs testing staff to operate controller 110 to being provided with tested charactron
PCB200 input corresponding test signal can realize the automatic detection of tested charactron, thus be effectively improved
The detection efficiency of charactron.Meanwhile, the display of tested charactron and the display to tested charactron are obtained
Analysis realized by image acquiring device 120 and image processing module 130 respectively, it is not necessary to manually carry out
Judge, the most also avoid the anthropic factor impact on testing result so that the final testing result obtained
More objective and then the most accurate.
Herein, it should be noted that as charactron detecting system 100 of the present utility model is concrete real
Executing example, display signal is: the normal picture after normally showing tested charactron under the excitation of test signal
Carry out after the normal coordinate figure obtained by after coordinatograph and color filtering and normal color value analog-to-digital conversion is normal
Digital signal.Accordingly, the display image after process is then: display image is carried out coordinatograph and color mistake
Actual coordinate value obtained by after filter and the actual digital signal after actual color value analog-to-digital conversion.That is, pass through
It is right that the signal of the normal display of theoretic tested charactron and the signal of tested charactron actual displayed are carried out
Ratio, thus can directly pass through to arrange one or several comparator in image processing module 130 and carry out signal ratio
Relatively, simple in construction, it is easy to accomplish.
Further, seeing Fig. 2, another as charactron detecting system 100 of the present utility model is specifically real
Executing example, it also includes mobile terminal 140.Wherein, image processing module 130 is arranged on mobile terminal 140
On.Further, the second outfan of controller 110 passes through serial ports and the image processing module of mobile terminal 140
The first input end electrical connection of 130.The outfan of image acquiring device 120 USB by mobile terminal 140
Interface electrically connects with the second input of image processing module 130.Herein, it should be noted that in this reality
With in a specific embodiment of novel charactron detecting system 100, mobile terminal 140 is computer, i.e.
PC(Personal Computer).Preferably, computer is the PC of band serial ports, and it is provided with Windows
The operating system of more than XP, and CPU frequency is at more than 2.0GHZ, internal memory is more than or equal to 2GB, hard disk
For more than 100GB.
It addition, see Fig. 2, as the still another embodiment of charactron detecting system 100 of the present utility model,
It also includes test fixture 150.Wherein, test fixture 150 is provided with fixed part and connects thimble (in figure
The most not shown).Fixed part is used for fixing PCB200 so that when image acquiring device 120 is on PCB200
The display image acquired when capturing of the actual displayed situation of tested charactron the most accurate, it is ensured that
The integrity of the display image obtained and accuracy.This most just judges tested number for follow-up according to display image
The displaying whether of pipe normally provides premise accurately, further ensures the accuracy and accurately of testing result
Property.
Meanwhile, the first outfan of controller 110 then by the connection thimble on test fixture 150 with
The input electrical connection of PCB200, thus ensure the steady of the test signal between controller 110 and PCB200
Fixed transmission.
Further, Fig. 2, the test fixture in charactron detecting system 100 of the present utility model are seen
Fixed support 151 it is additionally provided with on 150.Wherein, fixed support 151 may be provided at the one of test fixture 150
Side, fixes with test fixture 150 and is connected.Meanwhile, image acquiring device 120 is fixedly mounted on fixing
On frame 151.Concrete, tested charactron (is i.e. clapped by the image capture portion of image acquiring device 120
According to part) be directed at the tested charactron on the PCB200 being positioned on test fixture 150.It will be by scheming
As acquisition device 120 is fixedly mounted on fixed support 151, further ensure it and tested charactron is entered
The definition of the display image that row is acquired when taking pictures and accuracy, it is to avoid due to image acquiring device 120
Instability caused the display image obtained to be the phenomenon of broad image or the virtual image, this is the most further
Improve the degree of accuracy of testing result.
Wherein, it should be noted that be embodied as in the one of charactron detecting system 100 of the present utility model
In example, controller 110 can use analogue-key controller to realize.When using analogue-key controller conduct
During controller 110 in charactron detecting system 100 of the present utility model, the simulation of analogue-key controller
Holding wire by test fixture 150 connect thimble and be provided with tested charactron PCB200 input electricity
Connect.Thus, by analogue-key controller when PCB200 sends corresponding test signal, can be by even
The several low and high levels of continuous output realize.Wherein, a low and high level characterizes user's click and is provided with measurand
Button on the PCB200 of code pipe once, exports the button quilt that several low and high level then characterizes on PCB200
Click on corresponding number of times.So that PCB200 is according to the number of clicks of button, according to the operation journey that it is intrinsic
Sequence controls tested charactron and makes corresponding display.User operation is not had to allow even if this is also achieved that
Tested charactron on PCB200 carries out corresponding display operation.When PCB200 does not has rosin joint, damage
Or during the phenomenon of false circuit connection, the display situation of tested charactron should with theoretic display signal (i.e.
Signal is corresponding shows signal with testing) consistent.If PCB200 existing rosin joint, damage or circuit even
During the phenomenon that wrong misses, tested charactron the most likely can not normally show, or its actual displayed situation and reason
Display signal in opinion is not inconsistent.
Further, as a specific embodiment of charactron detecting system 100 of the present utility model, it uses mould
When intending button controller as controller 110, analogue-key controller is also provided with start button.Its
In, analogue-key controller, it is additionally configured to, according to the clicked state starting button, survey to PCB input
Trial signal.That is, by according to starting the most clicked or clicked number of times of button, control to simulate by
Key controller switches to startup test module, and then realizes analogue-key controller to PCB input test signal
Purpose.It is simple to operate, with low cost.
Further, the image acquiring device 120 in charactron detecting system 100 of the present utility model can be adopted
Realize with industrial camera.Concrete, when industrial camera is fixedly mounted on fixed support 151, industry phase
The camera lens of machine should be directed at tested charactron, to ensure that acquisition clearly indicates image.Meanwhile, industrial camera
Outfan electrically connected with the second input of image processing module 130 by the USB interface of computer, and
Signal communication and data transmission is carried out with image processing module 130.It is by using industrial camera as image
Acquisition device 120, it is possible to the real-time image processing module that the display image captured is sent in computer
In 130, and also the work of high intensity can be carried out, it is adaptable on busy PCB200 production line, effectively
Ensure that the reliability and stability of charactron detecting system 100.
For the technical scheme of clearer explanation charactron of the present utility model detecting system 100, below with work
Industry camera is specific embodiment as image acquiring device 120, analogue-key controller as controller 110,
The process that charactron detecting system 100 of the present utility model is detected tested charactron is described in detail.
First, PCB200 is fixed on test fixture 150.Wherein, the tested charactron on PCB200
Upward, industrial camera is fixed on the top of test fixture 150, the mirror of industrial camera by fixed support 151
Tested charactron on alignment PCB200 upside down.Then, the analog signal line of analogue-key controller passes through
The thimble that connects of test fixture 150 is connected with the input of PCB200.Analogue-key controller by serial ports with
The computer being provided with image processing software is connected and communicates.Industrial camera is then by the USB of computer
Interface is connected with computer and communicates.
And then, analogue-key controller and computer are both powered up, by the startup of operation simulation button controller
Button, starts test.Wherein, analogue-key controller is sent out by the input of analogue signal alignment PCB200
Send the low and high level (i.e. testing signal) of predetermined number, it is achieved click on the button on the PCB200 of preset times
Operation so that PCB200 is according to the low and high level of the predetermined number received, according to intrinsic operation program control
Make tested charactron to show accordingly.Meanwhile, analogue-key controller sends and default to computer
The low and high level of number shows signal accordingly, and the image processing module 130 on computer receives display signal
After, the display controlling industrial camera logarithmic code pipe according to display signal is captured.
After industrial camera receives the control signal of image processing module 130, to the tested number on PCB200
Pipe is captured, and obtains and shows image accordingly.Then, image processing module 130 industrial camera is read
Capture the display image arrived, image is carried out a series of coordinatograph and color filtering processes.Specifically comprise the steps that
To image coordinate, preserve every segment numeral pipe coordinate position in display image, image is carried out color mistake
Filter, is converted into the color signal of every segment numeral pipe on an off the signal of 1 and 0.Then, obtain after process
The data message taken and the original every segment numeral pipe coordinate data in the picture preserved and color value (i.e. controller
The 110 display signals sent) compare, thus draw the tested numeral method correctness of PCB200
Result.That is, image processing module 130 arranges processor and comparator (not shown), by processing
Device carries out above-mentioned a series of process to display image, comparator carry out above-mentioned comparison, thus obtain final
Testing result.
By using charactron detecting system 100 of the present utility model, it is achieved that the automatic inspection of tested charactron
Survey, thus be effectively increased the detection efficiency of charactron.Simultaneously, it is not necessary to manually judge, thus also
Avoid the anthropic factor impact on testing result so that the final testing result obtained is more objective.?
It is effectively increased the detection efficiency of charactron and the degree of accuracy of testing result eventually.
Embodiment described above only have expressed several embodiments of the present utility model, its describe more concrete and
In detail, but therefore can not be interpreted as the restriction to this utility model the scope of the claims.It should be pointed out that,
For the person of ordinary skill of the art, without departing from the concept of the premise utility, it is also possible to
Making some deformation and improvement, these broadly fall into protection domain of the present utility model.Therefore, this utility model
The protection domain of patent should be as the criterion with claims.
Claims (10)
1. a charactron detecting system, it is characterised in that include controller, image acquiring device and image
Processing module；
First outfan of described controller electrically connects with the input of the PCB being provided with tested charactron, institute
The first input end of the second outfan and described image processing module of stating controller electrically connects；And
Described controller, is configured to described PCB input test signal, and control on described PCB is described
Charactron shows accordingly, and shows signal accordingly to the input of described image processing module simultaneously；
The outfan of described image acquiring device electrically connects with the second input of described image processing module, suitable
After described tested charactron shows accordingly, acquisition display image that described tested charactron is taken pictures；
Described image processing module, is configured to receive described display signal and read described display image, root
Judge that described charactron the most normally shows according to the described display image after described display signal and process.
System the most according to claim 1, it is characterised in that described display signal is: to described quilt
Survey charactron normal picture under the excitation of described test signal after normal display and carry out coordinatograph and color mistake
Normal coordinate figure obtained by after filter and the normal digital signal after normal color value analog-to-digital conversion；
Described display image after process is: described display image carries out gained after coordinatograph and color filtering
Actual digital signal after the actual coordinate value arrived and actual color value analog-to-digital conversion.
System the most according to claim 1, it is characterised in that also include mobile terminal；
Described image processing module is installed on mobile terminals；And
Second outfan of described controller is by the serial ports of described mobile terminal and described image processing module
First input end electrically connects；
The outfan of described image acquiring device is by the USB interface of described mobile terminal and described image procossing
Second input electrical connection of module.
System the most according to claim 3, it is characterised in that described mobile terminal is computer.
System the most according to claim 1, it is characterised in that also include test fixture；
Described test fixture is provided with fixed part and connects thimble；
Described fixed part, it is adaptable to fixing described PCB；
First outfan of described controller is electrically connected with the input of described PCB by described connection thimble.
System the most according to claim 5, it is characterised in that described test fixture is additionally provided with fixing
Support；Described image acquiring device is fixed on described fixed support.
7. according to the system described in any one of claim 1 to 6, it is characterised in that described controller is mould
Intend button controller.
System the most according to claim 7, it is characterised in that described test signal is: described simulation
The high and low level of the button controller input extremely continuous print predetermined number of described PCB.
System the most according to claim 7, it is characterised in that described analogue-key controller is provided with
Start button；
Described analogue-key controller, is additionally configured to the clicked state according to described startup button, to institute
State PCB and input described test signal.
10. according to the system described in any one of claim 1 to 6, it is characterised in that described Image Acquisition
Device is industrial camera.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620195169.1U CN205539254U (en) | 2016-03-14 | 2016-03-14 | Charactron detecting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620195169.1U CN205539254U (en) | 2016-03-14 | 2016-03-14 | Charactron detecting system |
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| Publication Number | Publication Date |
|---|---|
| CN205539254U true CN205539254U (en) | 2016-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620195169.1U Expired - Fee Related CN205539254U (en) | 2016-03-14 | 2016-03-14 | Charactron detecting system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111239589A (en) * | 2020-01-20 | 2020-06-05 | 福建宏泰智能工业互联网有限公司 | Electronic lock circuit board testing method, device and system |
-
2016
- 2016-03-14 CN CN201620195169.1U patent/CN205539254U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111239589A (en) * | 2020-01-20 | 2020-06-05 | 福建宏泰智能工业互联网有限公司 | Electronic lock circuit board testing method, device and system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160831 Termination date: 20210314 |