CN214954016U - HDMI interface open/short circuit testing device - Google Patents
HDMI interface open/short circuit testing device Download PDFInfo
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- CN214954016U CN214954016U CN202121520087.7U CN202121520087U CN214954016U CN 214954016 U CN214954016 U CN 214954016U CN 202121520087 U CN202121520087 U CN 202121520087U CN 214954016 U CN214954016 U CN 214954016U
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Abstract
The utility model relates to a short circuit testing arrangement is opened to HDMI interface, including MCU treater, interface converter, quick dry reed relay switch board, power, impedance collection module and shift knob panel, the control end of MCU treater with quick dry reed relay switch board links to each other, interface converter's output then with quick dry reed relay switch board electricity is connected, interface converter's input passes through the HDMI cable and links to each other with the HDMI interface that waits to detect the product, the data output end of MCU treater with impedance collection module links to each other, the shift knob panel with the trigger end of MCU treater links to each other, the power is used for opening the power supply of short circuit testing arrangement. The HDMI automatic detection system has the advantage of being fast in detection, can realize automatic judgment of each node in an HDMI interface, and is small in size and convenient to carry and transport.
Description
Technical Field
The utility model relates to a short circuit testing arrangement is opened to HDMI interface.
Background
The existing testing mode for the HDMI interface is a plug-in test in the same field, that is, the HDMI interface of the product is connected to a display through an HDMI cable for testing, but the testing mode has the following defects: the plug-in test efficiency is low, an auxiliary display and a signal source are needed, the product can be tested only by powering on and starting up, the cost is not easy to be reduced, and the problem of leakage is easily caused because some temporarily unused signal lines cannot be covered.
Disclosure of Invention
The utility model aims at providing a short circuit testing arrangement is opened to HDMI interface, it has the quick advantage of detection, can realize the automatic judgement to each node in the HDMI interface, and is small, conveniently carry the transportation.
In order to achieve the above purpose, the utility model adopts the technical scheme that:
the utility model provides a short circuit testing arrangement is opened to HDMI interface, including MCU treater, interface converter, quick dry reed relay switch board, power, impedance collection module and shift knob panel, the control end of MCU treater with quick dry reed relay switch board links to each other, the output of interface converter then with quick dry reed relay switch board electricity is connected, the input of interface converter passes through the HDMI cable and links to each other with the HDMI interface that waits to detect the product, the data output end of MCU treater with impedance collection module links to each other, the shift knob panel with the trigger end of MCU treater links to each other, the power is used for opening the power supply of short circuit testing arrangement.
Optionally, a control circuit is arranged in the rapid reed relay switching board, the control circuit includes two groups of control branches, a first control branch is connected in series with a second control branch, the first control branch includes at least one switch connected in parallel, the second control branch includes at least one relay connected in parallel, and the MCU processor controls the change between the access nodes of the HDMI interface by controlling the on/off of the relay and the switch in each group of control branches.
Optionally, the system further comprises a liquid crystal screen, and the liquid crystal screen is connected with the data output end of the MCU processor.
Because of the application of the technical scheme, compared with the prior art, the utility model has the following advantages:
the utility model discloses a short circuit testing arrangement is opened to HDMI interface through the break-make of each switch and relay in the quick reed relay switching board of MCU treater control, realizes the test to impedance between each node of HDMI interface, compares with standard parameter, can realize the quick test to the HDMI interface, and it judges fast, can realize short-term test, and is efficient.
Drawings
Some specific embodiments of the present invention will be described in detail hereinafter, by way of illustration and not by way of limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
fig. 1 is a schematic structural diagram of an HDMI interface open/short circuit testing apparatus according to an embodiment of the present invention;
fig. 2 is a schematic diagram illustrating a connection between the switch board of the reed switch and the HDMI interface in the HDMI open/short circuit testing apparatus shown in fig. 1.
Wherein the reference numerals are as follows:
1. MCU treater, 2, quick dry reed relay switch board, 3, interface converter, 4, detect the product, 41, HDMI interface, 5, shift knob panel, 6, impedance acquisition module, 7, LCD screen, 8, power.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.
The embodiment provides a short-circuit testing device is opened to HDMI interface, as shown in fig. 1, including MCU treater 1, interface converter 3, quick reed relay switch board 2, power 8, impedance collection module 6 and shift knob panel 5, MCU treater 1's control end with quick reed relay switch board 2 links to each other, interface converter 3's output then with quick reed relay switch board 2 electricity is connected, interface converter 3's input passes through the HDMI cable and links to each other with the HDMI interface 41 of waiting to detect product 4, MCU treater 1's data output end with impedance collection module 6 links to each other, shift knob panel 5 with MCU treater 1's trigger end links to each other, is used for opening the work that stops testing device, power 8 is used for opening the short-circuit testing device power supply.
As shown in fig. 2, a control line is arranged in the fast reed relay switching board 2, the control line includes two groups of control branches, a first control branch is connected in series with a second control branch, the first control branch includes at least one switch connected in parallel, the second control branch includes at least one relay connected in parallel, and the MCU processor 1 controls the change between the access nodes of the HDMI interface 41 by controlling the on/off of the relay and the switch in each group of control branches.
Optionally, the system further comprises a liquid crystal screen 7, and the liquid crystal screen 7 is connected with the data output end of the MCU processor 1.
To sum up, the utility model discloses a short circuit testing arrangement is opened to HDMI interface 41 through the break-make of each switch and relay in the quick reed relay switch board 2 of MCU treater 1 control, realizes the test to impedance between each node of HDMI interface 41, compares with standard parameter, can realize the quick test to HDMI interface 41, and it judges fast, can realize short-term test, and is efficient.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, so as not to limit the protection scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (3)
1. The utility model provides a short circuit testing arrangement is opened to HDMI interface, its characterized in that, includes MCU treater, interface converter, quick reed relay switch board, power, impedance collection module and shift knob panel, the control end of MCU treater with quick reed relay switches the board and links to each other, the output of interface converter then with quick reed relay switches the board electricity and connects, the input of interface converter passes through the HDMI cable and links to each other with the HDMI interface of waiting to detect the product, the data output of MCU treater with impedance collection module links to each other, the shift knob panel with the trigger end of MCU treater links to each other, the power is used for opening the power supply of short circuit testing arrangement.
2. The HDMI open/short circuit test device according to claim 1, wherein a control circuit is disposed in the fast reed relay switching board, the control circuit includes two sets of control branches, a first control branch is connected in series with a second control branch, the first control branch includes at least one switch connected in parallel, the second control branch includes at least one relay connected in parallel, and the MCU processor controls the change between the access nodes of the HDMI by controlling the on/off of the relay and the switch in each set of control branches.
3. The HDMI open/short circuit test device according to claim 1, further comprising a liquid crystal screen, wherein the liquid crystal screen is connected to a data output terminal of the MCU processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121520087.7U CN214954016U (en) | 2021-07-06 | 2021-07-06 | HDMI interface open/short circuit testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121520087.7U CN214954016U (en) | 2021-07-06 | 2021-07-06 | HDMI interface open/short circuit testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214954016U true CN214954016U (en) | 2021-11-30 |
Family
ID=79077214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121520087.7U Active CN214954016U (en) | 2021-07-06 | 2021-07-06 | HDMI interface open/short circuit testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214954016U (en) |
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2021
- 2021-07-06 CN CN202121520087.7U patent/CN214954016U/en active Active
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