CN109309829A - A kind of capture card and a kind of test method - Google Patents
A kind of capture card and a kind of test method Download PDFInfo
- Publication number
- CN109309829A CN109309829A CN201710626310.8A CN201710626310A CN109309829A CN 109309829 A CN109309829 A CN 109309829A CN 201710626310 A CN201710626310 A CN 201710626310A CN 109309829 A CN109309829 A CN 109309829A
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- component
- tested
- signal
- processing terminal
- binary signal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N17/00—Diagnosis, testing or measuring for television systems or their details
- H04N17/004—Diagnosis, testing or measuring for television systems or their details for digital television systems
Abstract
The present invention provides a kind of capture card and a kind of test method, and capture card includes: the first interface connecting with component to be tested, the second interface connecting with processing terminal, acquisition unit and processing unit；The acquisition unit, for acquiring the vision signal that the component to be tested is sent and being transferred to the processing unit by the first interface；The processing unit is connect with the acquisition unit, for the vision signal to be converted to binary signal and is sent to the processing terminal through the second interface.Compared with prior art, the test signal of component to be tested is not to be directly output to processing terminal output image, but acquired card is converted to the binary signal that processing terminal is capable of handling, processing terminal can be made not only to export image, but image is analyzed according to binary signal, with this to determine to be measured is whether component qualified, improve judge component to be tested whether He Ge accuracy.
Description
Technical field
The present invention relates to video/audio export technique field more particularly to a kind of capture card and a kind of test methods.
Background technique
Video or the collecting test of audio refer to the chip or circuit board to be tested of processing video or audio
The test of signal handling capacity, it is whether qualified to detect chip or circuit board to be tested.
Test method in the prior art be signal source is connected to chip or circuit board to be tested signal input connect
Mouthful, the video/audio output signal of chip to be tested or circuit board is then connected to display image screen by cable, this
Sample, by comparing the image of display, whether the sound captured is qualified to judge chip or circuit board to be tested.
But in the prior art, need to be judged with human eye the image quality of image, and human eye is lower than 120 feelings to color range
Condition can not judge, will cause erroneous judgement in this way；In addition, excessive artificial intervention, can also have an impact test, cause to misjudge
Or erroneous judgement.
Summary of the invention
The present invention provides a kind of capture card and a kind of test method, sentences in the prior art using only human eye for solving
The image quality of disconnected image, and the no qualified inaccurate problem of chip or circuit board to be tested is judged according to image quality.
The embodiment of the present invention provides a kind of capture card, comprising: the first interface and processing terminal connecting with component to be tested
Second interface, acquisition unit and the processing unit of connection；
The acquisition unit, for acquiring the vision signal of the component transmission to be tested simultaneously by the first interface
It is transferred to the processing unit；
The processing unit is connect with the acquisition unit, for the vision signal to be converted to binary signal simultaneously
The processing terminal is sent to through the second interface.
In the embodiment of the present invention, vision signal is acquired by capture card, and vision signal is converted, after conversion
Binary signal is sent to processing terminal, so that processing terminal can determine whether component to be tested closes according to binary signal
Lattice.Compared with prior art, the test signal of component to be tested is not directly output to processing terminal output image instead of, through adopting
Truck is converted to the binary signal that processing terminal is capable of handling, and processing terminal can be made not only to export image, but according to two
Binary signal analyzes image, determines that be measured is whether component is qualified with this, that is to say, that compared with prior art, improve
Judge component to be tested whether He Ge accuracy.
Further, Double Data Rate synchronous DRAM DDR SDRAM, the DDR SDRAM and the processing
Unit connection, passes through the binary signal for storing the binary signal, and under the calling of the processing unit
The second interface is sent to the processing terminal.
In the embodiment of the present invention, capture card has used DDR SDRAM, convenient for the high speed processing of capture card.
Further, the first interface is connect with the component to be tested by certain amount of output cable, wherein
The certain amount of output cable is determined according to the signal attribute of the vision signal.
In the embodiment of the present invention, the attribute of the signal of component to be tested output based on the received, it is determined that capture card with to
Number of cables between test suite.
Further, the second interface is also used to:
Receive the control instruction that the processing terminal is sent；
The capture card further includes flash cell, is connect with the processing unit, is sent for storing the processing terminal
Control instruction；
The processing unit, is also used to call the control instruction in the flash cell, control mechanical arm place or
Person removes the component to be tested.
In the embodiment of the present invention, capture card can receive the control instruction of processing terminal, and due to component to be tested compared with
Small, artificial place will cause destruction, so capture card controls mechanical arm according to control instruction and places or remove to be tested group
Part.
Further, the first interface is high-speed video data interface, and the second interface is hi-speed USB interface.
In the embodiment of the present invention, capture card can grab high-speed video data, and place can be sent to by high-speed interface
Terminal is managed, the control instruction that processing terminal is sent to capture card can also be received by high-speed interface.
The present invention provides a kind of test method, and capture card is after receiving test sign on；The capture card will be described
Vision signal to be measured is converted to binary signal to be measured, and the binary signal to be measured is sent to processing terminal, so that institute
Processing terminal is stated according in the normal binary signal, the binary signal to be measured and the test sign on saved
Including the attribute information of component to be tested determine whether the component to be tested qualified；Wherein, the normal binary signal
It is to be obtained according to the video standard signal of standard component output, the attribute information of the standard component and the component to be tested
It is identical.
In the embodiment of the present invention, capture card obtains to be tested after the test sign on for receiving processing terminal transmission
The vision signal of component output, and vision signal is converted into the binary signal that processing terminal is capable of handling, so that processing is eventually
End can determine whether component to be tested is qualified according to binary signal to be measured and the normal binary saved signal, with
The prior art is compared, and is converted the comparison function to realize processing terminal to vision signal by capture card, improves determination
Component to be tested whether He Ge accuracy.
The present invention also provides a kind of test methods, which comprises
Processing terminal receives the binary signal to be measured that capture card is sent, and it is corresponding to obtain the binary signal to be measured
The attribute information of component to be tested, wherein the attribute information of the corresponding component to be tested of the binary signal to be measured is the place
What reason terminal determined when sending the acquisition binary signal to be measured to the capture card；
The processing terminal determines the attribute information of the component to be tested according to the attribute information of the component to be tested
Corresponding normal binary signal；
The processing terminal determines described to be measured according to the binary signal to be measured and the normal binary signal
Whether qualified try component.
In the embodiment of the present invention, processing terminal is by the binary signal to be measured that capture card is sent and the standard two saved
Binary signal is compared, rather than directly exports image, is differentiated by human eye, improves and whether determines component to be tested
Qualified accuracy.
Further, the processing terminal is according to the signal processed to be measured and normal binary signal determination
Whether component to be tested is qualified, comprising:
The binary signal to be measured is converted to the first image information by the processing terminal, and the normal binary is believed
Number be converted to standard picture information；
The processing terminal determines the component to be tested according to the first image information and the standard picture information
It is whether qualified.
In the embodiment of the present invention, image information and standard two that processing terminal is changed into according to binary signal to be measured into
The image information that signal processed is changed into determines whether measured signal qualified, improve determine component to be tested whether He Ge standard
True property.
Further, the method also includes:
The processing terminal obtains the first audio signal that the component to be tested is sent；
First audio signal is converted to waveform signal by the processing terminal, and the waveform signal is sent to aobvious
Show device, so that the display shows the waveform signal.
The embodiment of the present invention waveform signal can also be shown over the display, with it is in the prior art directly with human ear come
Directly judge that be measured is that the first audio signal of component output is compared, improves and determine whether qualified accurate of component to be tested
Property.
The present invention also provides a kind of non-transient computer readable storage medium, the non-transient computer readable storage medium
Computer instruction is stored, the computer instruction is for making the computer execute any of the above-described the method.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly introduced, it should be apparent that, drawings in the following description are only some embodiments of the invention, for this
For the those of ordinary skill in field, without any creative labor, it can also be obtained according to these attached drawings
His attached drawing.
Fig. 1 is a kind of structural schematic diagram of capture card provided in an embodiment of the present invention；
Fig. 2 is a kind of structural schematic diagram of capture card provided in an embodiment of the present invention；
Fig. 3 is a kind of structural schematic diagram of capture card provided in an embodiment of the present invention；
Fig. 4 is a kind of structural schematic diagram of capture card provided in an embodiment of the present invention；
Fig. 5 is a kind of structural schematic diagram of capture card provided in an embodiment of the present invention；
Fig. 6 is a kind of flow diagram of test method provided in an embodiment of the present invention；
Fig. 7 is a kind of flow diagram of test method provided in an embodiment of the present invention.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached drawing to the present invention make into
It is described in detail to one step, it is clear that the described embodiments are only some of the embodiments of the present invention, rather than whole implementation
Example.Based on the embodiments of the present invention, obtained by those of ordinary skill in the art without making creative efforts
All other embodiment, shall fall within the protection scope of the present invention.
The present invention provides a kind of capture card 100, as shown in Figure 1, comprising: the first interface connecting with component 110 to be tested
101, second interface 102, acquisition unit 103 and the processing unit 104 being connect with processing terminal 120；
The acquisition unit 103, for acquiring the vision signal of the transmission of component 110 to be tested simultaneously by first interface 101
It is transferred to processing unit 104；Processing unit 104 connect 103 with acquisition unit, for vision signal to be converted to binary system letter
Number and be sent to processing terminal 120 through second interface 102.
In embodiments of the present invention, component 110 to be tested handles test video signal, and handles test video signal, and
By first interface 101 by video signal transmission to processing unit 104, optionally, in embodiments of the present invention, first interface
101 be high-speed video data interface, that is to say, that by first interface 101, acquisition unit 103 can acquire high-speed video number
According to optionally, in embodiments of the present invention, high-speed video data is low-voltage differential signal LVDS data, uses LVDS technology
Product data rate can be from several hundred Mbps to 2Gbps；High-speed video data is also possible to V-by-OneHS (VBO) number
According to maximum speed can reach 3.75G.
In embodiments of the present invention, as shown in Fig. 2, capture card 100 further includes Double Data Rate synchronous DRAM
DDR SDRAM105, DDR SDRAM105 is connect with processing unit 104, for storing binary signal, and in processing unit 104
Calling under binary signal is sent to processing terminal 120 by second interface 102.
That is, in embodiments of the present invention, processing unit 104 acquires acquisition unit 103 by first interface 101
To vision signal be converted to binary signal after, binary signal is stored in DDR SDRAM105, processing unit 104 exists
When needing to send binary signal to processing terminal 120 by second interface 102, processing unit 104 calls DDR SDRAM105
In binary signal, and binary signal is sent to processing terminal 120 by second interface 102.
Optionally, in embodiments of the present invention, first interface 101 and component 110 to be tested pass through certain amount of output
Cable connection, wherein certain amount of output cable is determined according to the signal attribute of vision signal.
For example, in embodiments of the present invention, it is corresponding if vision signal is VGA (Video Graphics Array)
The quantity of output cable is LVDS 28Pin；If vision signal is LVDS, the quantity of corresponding output cable is V-BY-ONE
51Pin。
Optionally, in embodiments of the present invention, if vision signal is high-speed video, cable is also wanted and high-speed video
The transmission speed of signal matches.
Optionally, in embodiments of the present invention, as shown in figure 3, second interface 102 is also used to receive the hair of processing terminal 120
The control instruction sent；Capture card 100 further includes flash cell 106, is connect with processing unit 104, for storing processing terminal 120
The control instruction of transmission；Processing unit 104 is also used to call the control instruction in flash cell 106, control mechanical arm place or
Person removes component 110 to be tested.
Since the size of component 110 to be tested is smaller, removing or place by artificial will cause wafer damage etc. and asks
Topic, so control instruction can be sent to capture card 100 after processing terminal 120 determines and has been received that binary signal, it should
Control instruction is stored in flash cell 106, and processing unit 104 calls the control instruction in flash cell 106, controls mechanical arm
Movement.
The present invention also provides a kind of test macros, as shown in figure 4, including capture card 100, component 110 to be tested and place
Terminal 120 is managed, the vision signal obtained after processing is sent to capture card for handling test signal by component 110 to be tested
100, after vision signal is converted to binary signal by capture card 100, binary signal is sent to processing terminal 120, is handled
Terminal 120 determines whether component 110 to be tested is qualified after receiving binary signal.
In embodiments of the present invention, processing terminal 120 is in order to being determined more accurately whether component 110 to be tested closes
Lattice are not that binary signal is directly exposed directly to user, and user is allowed to go to distinguish by human eye, but by determining binary system
Otherness between the image information that signal is converted to and standard picture information determines whether component 110 to be tested is qualified.
So in embodiments of the present invention, processing terminal 120 is firstly the need of determining normal binary signal, that is to say, that place
It manages terminal 120 and sends acquisition instructions to capture card 100 first, capture card 100 starts to acquire the vision signal of standard component output,
The attribute information of standard component is stored in processing terminal 120, and processing terminal 120 is after collecting binary signal, meeting
The attribute information of binary signal and standard component is established into binding relationship and is saved.
When user needs to carry out the test of component 110 to be tested, acquisition instructions, capture card 100 are sent to capture card 100
The vision signal to be tested that component 110 to be tested is handled is received, and vision signal to be tested is converted into binary signal to be measured,
Binary signal to be measured is sent to processing terminal 120 by capture card 100.
Processing terminal 120 determines the attribute information of component 110 to be tested after getting binary signal to be measured, processing
Terminal 120 determines normal binary signal according to the attribute information of component 110 to be tested, i.e., component 110 to be tested is wanted and standard
The attribute information of the corresponding component of binary signal is consistent.
Processing terminal 120 is converted to standard picture letter after normal binary signal has been determined, by normal binary signal
Binary signal to be measured is converted to the first image information by breath, and processing terminal 120 is believed according to the first image information and standard picture
Breath determines whether the component 110 to be tested is qualified.
Optionally, in embodiments of the present invention, processing terminal 120 determines in the first image information and standard picture information
Each minimum pixel it is whether identical, however, it is determined that each minimum pixel phase in the first image information and standard picture information
Together, it is determined that component 110 to be tested is qualified；Or processing terminal 120 determines in the first image information and standard picture information
The identical ratio of minimum pixel be greater than preset threshold, it is determined that component to be tested 110 is qualified.
Optionally, in embodiments of the present invention, processing terminal 120 can be by the first image information and standard picture information
It shows in the display, which pixel unit in the first image information and standard picture information can also be shown in the display
Be different, be conducive to tester can it is convenient, be apparent from test result.
Optionally, in embodiments of the present invention, component 110 to be tested in addition to can be handle vision signal chip or
Outside circuit board, the chip or circuit board of processing audio signal can also be, as shown in figure 5, processing terminal 120 can also obtain
First audio signal is converted to waveform signal by the first audio signal that component 110 to be tested is sent, processing terminal 120, and will
The waveform signal is sent to display, and display shows the waveform signal.
Based on same principle, the embodiment of the present invention also provides a kind of test method, as shown in Figure 6, comprising:
Step 601, capture card obtains the video to be measured letter of component output to be tested after receiving test sign on
Number；
Step 602, the vision signal to be measured is converted to binary signal to be measured by the capture card, and will be described to be measured
Binary signal is sent to processing terminal, so that the processing terminal is according to the normal binary signal, described to be measured saved
The attribute information for the component to be tested for including in binary signal and the test sign on determines the component to be tested
It is whether qualified；Wherein, the normal binary signal is obtained according to the video standard signal of standard component output, the mark
Prospective component is identical as the attribute information of the component to be tested.
The embodiment of the present invention also provides a kind of test method, as shown in fig. 7, comprises:
Step 701, processing terminal receives the binary signal to be measured that capture card is sent, and obtains the binary system letter to be measured
The attribute information of number corresponding component to be tested, wherein the attribute information of the corresponding component to be tested of the binary signal to be measured
It is that the processing terminal determines when sending to the capture card and acquire the binary signal to be measured；
Step 702, the processing terminal determines the component to be tested according to the attribute information of the component to be tested
The corresponding normal binary signal of attribute information；
Step 703, the processing terminal is determined according to the binary signal to be measured and the normal binary signal
Whether the component to be tested is qualified.
Further, the processing terminal is according to the signal processed to be measured and normal binary signal determination
Whether component to be tested is qualified, comprising:
The binary signal to be measured is converted to the first image information by the processing terminal, and the normal binary is believed
Number be converted to standard picture information；
The processing terminal determines the component to be tested according to the first image information and the standard picture information
It is whether qualified.
Further, the method also includes:
The processing terminal obtains the first audio signal that the component to be tested is sent；
First audio signal is converted to waveform signal by the processing terminal, and the waveform signal is sent to aobvious
Show device, so that the display shows the waveform signal.
The embodiment of the present invention also provides a kind of non-transient computer readable storage medium, and the non-transient computer is readable to deposit
Storage media stores computer instruction, and the computer instruction is for making the computer execute any of the above-described the method.
The present invention be referring to according to the method for the embodiment of the present invention, the process of equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions
The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs
Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real
The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basic
Property concept, then additional changes and modifications may be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as
It selects embodiment and falls into all change and modification of the scope of the invention.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (10)
1. a kind of capture card characterized by comprising the first interface that connect with component to be tested is connect with processing terminal
Second interface, acquisition unit and processing unit；
The acquisition unit, for acquiring the vision signal that the component to be tested is sent and transmission by the first interface
To the processing unit；
The processing unit is connect with the acquisition unit, for the vision signal to be converted to binary signal and through institute
It states second interface and is sent to the processing terminal.
2. capture card according to claim 1, which is characterized in that the capture card further include:
Double Data Rate synchronous DRAM DDR SDRAM, the DDR SDRAM connect with the processing unit, are used for
The binary signal is stored, and sends out the binary signal by the second interface under the calling of the processing unit
Give the processing terminal.
3. capture card according to claim 1, which is characterized in that
The first interface is connect with the component to be tested by certain amount of output cable, wherein described certain amount of
Output cable is determined according to the signal attribute of the vision signal.
4. capture card according to claim 1, which is characterized in that the second interface is also used to:
Receive the control instruction that the processing terminal is sent；
The capture card further includes flash cell, is connect with the processing unit, the control sent for storing the processing terminal
System instruction；
The processing unit, is also used to call the control instruction in the flash cell, and control mechanical arm is placed or moved
The component to be tested out.
5. capture card according to any one of claims 1 to 4, which is characterized in that
The first interface is high-speed video data interface, and the second interface is hi-speed USB interface.
6. a kind of test method, which is characterized in that the described method includes:
Capture card obtains the vision signal to be measured of component output to be tested after receiving test sign on；
The vision signal to be measured is converted to binary signal to be measured by the capture card, and the binary signal to be measured is sent out
Give processing terminal so that the processing terminal according to saved normal binary signal, the binary signal to be measured with
And the attribute information for testing the component to be tested for including in sign on determines whether the component to be tested is qualified；Its
In, the normal binary signal is obtained according to the video standard signal of standard component output, the standard component and institute
The attribute information for stating component to be tested is identical.
7. a kind of test method, which is characterized in that the described method includes:
Processing terminal receives the binary signal to be measured that capture card is sent, and it is corresponding to be measured to obtain the binary signal to be measured
The attribute information of component is tried, wherein the attribute information of the corresponding component to be tested of the binary signal to be measured is that the processing is whole
It holds and sends determination when acquiring the binary signal to be measured to the capture card；
The processing terminal determines that the attribute information of the component to be tested is corresponding according to the attribute information of the component to be tested
Normal binary signal；
The processing terminal determines described to be tested group according to the binary signal to be measured and the normal binary signal
Whether part is qualified.
8. the method according to the description of claim 7 is characterized in that the processing terminal is according to the signal processed to be measured and institute
It states normal binary signal and determines whether the component to be tested is qualified, comprising:
The binary signal to be measured is converted to the first image information by the processing terminal, and the normal binary signal is turned
It is changed to standard picture information；
Whether the processing terminal determines the component to be tested according to the first image information and the standard picture information
It is qualified.
9. the method according to the description of claim 7 is characterized in that the method also includes:
The processing terminal obtains the first audio signal that the component to be tested is sent；
First audio signal is converted to waveform signal by the processing terminal, and the waveform signal is sent to display
Device, so that the display shows the waveform signal.
10. a kind of non-transient computer readable storage medium, which is characterized in that the non-transient computer readable storage medium is deposited
Computer instruction is stored up, the computer instruction is for making the computer perform claim require 7~9 any the methods.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710626310.8A CN109309829A (en) | 2017-07-27 | 2017-07-27 | A kind of capture card and a kind of test method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710626310.8A CN109309829A (en) | 2017-07-27 | 2017-07-27 | A kind of capture card and a kind of test method |
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| Publication Number | Publication Date |
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| CN109309829A true CN109309829A (en) | 2019-02-05 |
Family
ID=65202144
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710626310.8A Withdrawn CN109309829A (en) | 2017-07-27 | 2017-07-27 | A kind of capture card and a kind of test method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111464809A (en) * | 2020-04-08 | 2020-07-28 | 昆山丘钛微电子科技有限公司 | Data stability test circuit and test method of image acquisition card |
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| CN101751572A (en) * | 2008-12-05 | 2010-06-23 | 比亚迪股份有限公司 | Pattern detection method, device, equipment and system |
| CN101887737A (en) * | 2009-05-13 | 2010-11-17 | 鸿富锦精密工业（深圳）有限公司 | Audio-visual chip detection system and method |
| CN103002317A (en) * | 2012-11-16 | 2013-03-27 | 福州德州电子科技有限公司 | Automatic PCBA (printed circuit board assembly) testing method and system for display device |
| CN104168477A (en) * | 2014-09-02 | 2014-11-26 | 深圳市兆驰股份有限公司 | Automatic TV decoding deck test system and method |
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| CN101751572A (en) * | 2008-12-05 | 2010-06-23 | 比亚迪股份有限公司 | Pattern detection method, device, equipment and system |
| CN101887737A (en) * | 2009-05-13 | 2010-11-17 | 鸿富锦精密工业（深圳）有限公司 | Audio-visual chip detection system and method |
| CN103002317A (en) * | 2012-11-16 | 2013-03-27 | 福州德州电子科技有限公司 | Automatic PCBA (printed circuit board assembly) testing method and system for display device |
| CN104168477A (en) * | 2014-09-02 | 2014-11-26 | 深圳市兆驰股份有限公司 | Automatic TV decoding deck test system and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111464809A (en) * | 2020-04-08 | 2020-07-28 | 昆山丘钛微电子科技有限公司 | Data stability test circuit and test method of image acquisition card |
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