CN101437133A - Test switching device - Google Patents
Test switching device Download PDFInfo
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- CN101437133A CN101437133A CNA2007101702425A CN200710170242A CN101437133A CN 101437133 A CN101437133 A CN 101437133A CN A2007101702425 A CNA2007101702425 A CN A2007101702425A CN 200710170242 A CN200710170242 A CN 200710170242A CN 101437133 A CN101437133 A CN 101437133A
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Abstract
The invention provides a test switching device, which is applicable to signal test operation which uses test equipment to test a video interface, wherein a video connecting port of the video interface comprises a plurality of first pins. The test switching device comprises a test switching port and a test panel, wherein one end of the test switching port is connected with the video connecting port to be tested, while the other end is provided with the test panel; and the test panel is provided with a plurality of test points which are in electrical connection with a plurality of second pins of the test switching port. Therefore, the device is electrically connected with the test equipment through the test points to test the video interface.
Description
Technical field
The present invention relates to a kind of test switching device, more detailed it, relate to a kind of test switching device that is applied to the signal testing operation of video interface.
Background technology
In recent years, because under the high development of electronics and information related industry and the epoch trend that people have asked seeking change and innovation, electronics miscellaneous and information products are constantly come out of the stove, and existing product also constantly update pattern or renewal version.For production firm, the research and development exploitation of each new product, always unavoidably to do various test jobs, whether can correctly operate, so the quality management of many products and detection also just become great problem of each manufacturer with the design of verifying this product at the sample of each specification.
With Video Graphics Array (Video Graphic Array, VGA) interface card is an example, the standard display unit of present VGA interface card in computer equipment generally used.Simultaneously, along with popularizing of computer, the market demand of VGA interface card increases just gradually, and must can guarantee that just it meets the function of expection through detecting before the VGA interface card comes into operation.Generally, when the VGA interface card is tested, in advance the VGA interface card is mounted on the mainboard of computer equipment, a plurality of leads also is provided, and the end that will go between is welded on each pin to be measured of VGA joint of this VGA interface card, the other end then is connected on the connection detecting head of for example oscillographic testing equipment of far-end, for the signal testing operation of carrying out the test video interface.
But, above-mentioned prior art but is implied with many defectives: at first, in the wire bonds operation, because of the VGA joint of VGA interface is the standard box of 15 pins for example, lead-in wire is had to be welded on each pin of VGA joint rear end, and this VGA joint is installed on the mainboard, so need in advance mainboard to be taken out from computer housing so that weld.In other words, all must weld after each test, using this kind prior art, to draw the process of signal comparatively complicated and time-consuming; When simultaneously changing test signal again even must the reopening machine, not only use inconvenience, and do not meet the economic benefit of time and cost.
In addition, because of the spacing between each pin of VGA joint less, higher to the technology of institute's welding requirements, cause weld job cumbersome.And on the one hand, need ask will go between in the narrow and small confined space is soldered on the corresponding pin securely, to reach effective transmission of signal, avoids the phenomenon that produces the line rosin joint even open circuit; On the other hand, in welding process, need avoid between each pin or line Yin Lianxi takes place and the short circuit phenomenon that produces.So, cause the preparation of this VGA test jobs loaded down with trivial details and consuming time, and open circuit in the welding process or probability that short circuit etc. is wrong higher.Have, more because of number of pins to be measured, the Test Engineer often mixes up the pairing lead-in wire of a plurality of pins, causes the mistake of test event again, and this is that we do one's utmost to avoid.
Therefore, how to provide a kind of test switching device, use and overcome the loaded down with trivial details inconvenience of welding pin in the existing test jobs, waste time and energy and disappearance that testing efficiency is not high, become present problem demanding prompt solution then for test.
Summary of the invention
In view of the defective of above-mentioned prior art, one of purpose of the present invention is to provide a kind of test switching device with ease of use.
Another object of the present invention is to provide a kind of test switching device simple in structure.
A further object of the present invention is to provide a kind of test switching device with economic benefit.
For reaching above-mentioned purpose and other purposes, the present invention promptly provides a kind of test switching device, in the signal testing operation that is applied to utilize testing equipment to come the test video interface, video interface to be measured has the video interface, this the video interface comprises a plurality of first pins, this test switching device then comprises: the test adaptor port, be connected to this video interface, and have a plurality of second pins that should a plurality of first pins; And test panel, be arranged at this test adaptor port and be not connected to the other end of this video interface to be measured, and have a plurality of test points that electrically connect with a plurality of second pins, thereby be electrically connected to the signal of this testing equipment for this video interface of test by described test point.
In the aforementioned test switching device, this test adaptor port is chosen as the connectivity port of plug-type.This test adaptor port can be a Video Graphics Array (Video Graphics Array, VGA) male joint, and the video interface of this video interface is a female joint.
The information that also has corresponding each test point on the above-mentioned test panel.In one embodiment, described test point is electrically connected to this testing equipment by lead-in wire; That is, this test switching device also can comprise a plurality of leads that connects described test point, but this a plurality of leads also can be located at this testing equipment certainly.In other embodiments, described test point is the salient point of for example probe or the concave point of inspecting hole.
Test switching device design one of the present invention can be connected to the test adaptor port of the video interface of video interface, and this test adaptor port connects test panel.So, the test adaptor port by plug-type is connected to this video interface correspondence on the testing equipment of far-end, can carry out test video signal targetedly to this video interface.In other words, use the present invention and can in test process, select the test point of various combination as required, to finish repeatedly test.
The mainboard that needs in the prior art video interface will be installed takes out in host computer, also many lines is soldered to one by one on each pin in the video interface of video interface, the present invention has ease of use, improve operating efficiency relatively, and can reduce the probability that makes a mistake and improve the test effect; In addition, this test switching device simple in structure, thus save manufacturing cost.And the present invention need not welding after each test, solve the prior art complexity, time-consuming, and do not have defectives such as economic benefit of time and cost.
Description of drawings
Fig. 1 is for showing the basic structure schematic diagram of test switching device of the present invention.
The main element symbol description
1 test switching device
10 test adaptor ports
100 second pins
12 test panels
120 test points
2 video interfaces
20 the video interfaces
200 first pins
Execution mode
Below by specific instantiation explanation embodiments of the present invention, those skilled in the art can understand other advantages of the present invention and effect easily by the content that this specification disclosed.
See also Fig. 1, shown the basic structure schematic diagram of test switching device one embodiment of the present invention.In the signal testing operation that test switching device 1 of the present invention is applied to utilize testing equipment (not shown) to come test video interface 2, wherein, this video interface to be measured 2 has the video interface 20, and 20 of this video interfaces include a plurality of first pins 200.In the present embodiment, this video interface 2 is for example Video Graphics Array (Video Graphics Array, VGA) interface, and this video interface 20 is for for example having the standard specification VGA female joint of 15 first pin 200, and respectively this first pin 200 comprises for example pin of video component such as R, G, B, HSY, VSY and earth terminal (GND) of correspondence.Be noted that, in the present embodiment, this video interface 2 is that example describes with the VGA interface, but not as limit, also can be for example digital image interface (Digital Visual Interface, DVI), (High Definition Multimedia Interface HDMI) waits other similar video interfaces to high-definition multimedia digital transmission interface.In addition, this testing equipment can be for example oscilloscope, but non-as limit.
In the present embodiment, test switching device 1 of the present invention comprises: test adaptor port one 0 and the test panel 12 of being located at these test adaptor port one 0 one ends.
This test adaptor port one 0 has a plurality of second pins 100, thereby is connected to the video interface 20 of this video interface 2.In the present embodiment, this test adaptor port one 0 is designed to the connectivity port of plug-type, and can directly be plugged to this video interface 20; In other words, this video interface 20 is a female joint, and 0 of this test adaptor port one can be a VGA male joint corresponding with this video interface 20, so that an end is connected to this video interface 20.Because of VGA male joint conformance with standard standard, the known technology that is well known to those skilled in the art is so no longer given unnecessary details at this.Described second pin 100 comprises for example pin of video component such as R, G, B, HSY, VSY and earth terminal (GND) of correspondence.
This test panel 12 is arranged at a relative end of this test adaptor port one 0, that is, this test panel 12 is located at the other end that this test adaptor port one 0 is not connected to this video interface 20 to be measured.Simultaneously, this test panel 12 has a plurality of test points 120 that electrically connect with a plurality of second pins 100.In the present embodiment, described test point 120 is corresponding with a plurality of second pins 100, can connect described test point 120 to the detecting head of the testing equipment of far-end by for example welding lead (diagram), but not as limit.For example, this test point 120 for example can be designed to and the corresponding probe of the detecting head of this testing equipment, or be designed to and the corresponding inspecting hole of the detecting head of this testing equipment, promptly, can design coupling probe of this detecting head size or inspecting hole as the signal measurement point, so that the signal that will measure is introduced this detecting head by this probe or inspecting hole.And this test switching device 1 also can comprise a plurality of leads (diagram) that connects described test point 120, makes this lead terminal can mate this detecting head; But the present invention can have other variations certainly, and for example this a plurality of leads also can be located at this testing equipment, as long as therefore can connect described test point 120 to this testing equipment, all is applicable to the present invention.In addition, for ease of differentiating each test point 120 pairing video components, in the present embodiment, more can be in this test point 120 positions other mark information to video component that should second pin, 100 representatives is arranged.
When using vision signal that test switching device 1 of the present invention carries out this video interface 2 and measure, can be in advance with 0 pair of the test adaptor port one of this test switching device 1 should the video interface 20 of video interface 2 on, then; Each lead-in wire that is welded in a plurality of test points 120 on this test panel 12 is electrically connected to this testing equipment.So can test each video component signal of this video interface 2 by this testing equipment.
In sum, test switching device of the present invention is by providing the test adaptor port of the video interface that can be connected to this video interface to be measured, and the test panel of being located at a relative end of this test adaptor port, and this test panel has a plurality of test points corresponding with a plurality of pins of this test adaptor port, so, by described test point correspondence is connected on this testing equipment, can be in test process, select the test point of various combination as required, to finish repeatedly test.
The mainboard that needs to be equiped with this video interface in the prior art takes out in host computer and carries out the pin welding, and the present invention only reserves needs the signal measured, directly is connected on the video interface and can tests, simple and easy, corresponding raising operating efficiency.Simultaneously, using that the present invention need not to start shooting again is replaceable test signal, the defective of phenomenon such as can avoid prior art to produce short circuit again in welding process or to open circuit; In addition, by this test switching device, after executing test event, can change the lead-in wire of test point under the situation that computer system is not shut down, operation is quite convenient.Have again, this test switching device simple in structure, thus save manufacturing cost.
The foregoing description is illustrative principle of the present invention and effect thereof only, but not is used to limit the present invention.Any those skilled in the art all can be under spirit of the present invention and category, and the foregoing description is modified and changed.Therefore, the scope of the present invention, claim is listed as described later.
Claims (8)
1, a kind of test switching device, in the signal testing operation that is applied to utilize testing equipment to come the test video interface, video interface to be measured has the video interface, and this video interface includes a plurality of first pins, and this test switching device then comprises:
The test adaptor port, an end is connected to this video interface, has a plurality of second pins of corresponding a plurality of first pins; And
Test panel, be located at the other end that this test adaptor port is not connected to this video interface to be measured, and a plurality of test points that have and should many second pins electrically connect, thereby be electrically connected to the signal of this testing equipment for this video interface of test by this test point respectively.
2, test switching device according to claim 1, wherein, this test adaptor port is the Video Graphics Array male joint, and this video interface is female joint.
3, test switching device according to claim 1, wherein, this test adaptor port is the connectivity port of plug-type.
4, test switching device according to claim 1 wherein, also has the corresponding respectively information of this test point on this test panel.
5, test switching device according to claim 1 also comprises a plurality of leads that connects each test point, and each test point is electrically connected to this testing equipment by each lead-in wire.
6, test switching device according to claim 1, wherein, each test point is one of them of salient point and concave point.
7, test switching device according to claim 6, wherein, this salient point is a probe.
8, test switching device according to claim 6, wherein, this concave point is an inspecting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101702425A CN101437133A (en) | 2007-11-15 | 2007-11-15 | Test switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101702425A CN101437133A (en) | 2007-11-15 | 2007-11-15 | Test switching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101437133A true CN101437133A (en) | 2009-05-20 |
Family
ID=40711326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101702425A Pending CN101437133A (en) | 2007-11-15 | 2007-11-15 | Test switching device |
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| CN (1) | CN101437133A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102752623A (en) * | 2011-04-19 | 2012-10-24 | 鸿富锦精密工业（深圳）有限公司 | Signal testing device |
| CN104219519A (en) * | 2014-09-16 | 2014-12-17 | 硅谷数模半导体（北京）有限公司 | Testing adapter plate, system and method of audio and video interface |
| CN105891559A (en) * | 2016-06-24 | 2016-08-24 | 福建联迪商用设备有限公司 | HDMI (high definition multimedia interface) high-speed signal testing clamp and testing method |
| CN106249004A (en) * | 2016-08-29 | 2016-12-21 | 福建联迪商用设备有限公司 | HDMI active termination test fixture and method of testing |
| CN106908633A (en) * | 2017-02-09 | 2017-06-30 | 广州视源电子科技股份有限公司 | board card testing machine |
| CN107454382A (en) * | 2017-06-14 | 2017-12-08 | 深圳天珑无线科技有限公司 | The test suite and method of testing of camera |
| CN109932622A (en) * | 2017-12-16 | 2019-06-25 | 神讯电脑(昆山)有限公司 | The high pressure resistant test device of Type-c connector |
-
2007
- 2007-11-15 CN CNA2007101702425A patent/CN101437133A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102752623A (en) * | 2011-04-19 | 2012-10-24 | 鸿富锦精密工业（深圳）有限公司 | Signal testing device |
| CN104219519A (en) * | 2014-09-16 | 2014-12-17 | 硅谷数模半导体（北京）有限公司 | Testing adapter plate, system and method of audio and video interface |
| CN105891559A (en) * | 2016-06-24 | 2016-08-24 | 福建联迪商用设备有限公司 | HDMI (high definition multimedia interface) high-speed signal testing clamp and testing method |
| CN105891559B (en) * | 2016-06-24 | 2019-04-30 | 福建联迪商用设备有限公司 | HDMI high speed signal test fixture and test method |
| CN106249004A (en) * | 2016-08-29 | 2016-12-21 | 福建联迪商用设备有限公司 | HDMI active termination test fixture and method of testing |
| CN106249004B (en) * | 2016-08-29 | 2018-10-23 | 福建联迪商用设备有限公司 | The active termination test fixtures of HDMI and test method |
| CN106908633A (en) * | 2017-02-09 | 2017-06-30 | 广州视源电子科技股份有限公司 | board card testing machine |
| CN107454382A (en) * | 2017-06-14 | 2017-12-08 | 深圳天珑无线科技有限公司 | The test suite and method of testing of camera |
| CN109932622A (en) * | 2017-12-16 | 2019-06-25 | 神讯电脑(昆山)有限公司 | The high pressure resistant test device of Type-c connector |
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Open date: 20090520 |