CN219143449U - Computer HDMI interface test system - Google Patents
Computer HDMI interface test system Download PDFInfo
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- CN219143449U CN219143449U CN202320043771.3U CN202320043771U CN219143449U CN 219143449 U CN219143449 U CN 219143449U CN 202320043771 U CN202320043771 U CN 202320043771U CN 219143449 U CN219143449 U CN 219143449U
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Abstract
The application provides a computer HDMI interface test system, which comprises a computer and a conversion device, wherein the computer comprises an HDMI interface, a redundant interface and a controller; the controller is in signal connection with the HDMI interface and the redundant interface. The conversion device is independent of the computer, one end of the conversion device is connected with the HDMI interface circuit, the other end of the conversion device is connected with the redundant interface circuit, and the conversion device is used for converting HDMI signal data sent by the HDMI interface into video signal data which can be received by the redundant interface. The controller is configured to: in a first aspect, the controller is configured to send HDMI signal data to the HDMI interface; in a second aspect, the controller is configured to receive video signal data from the redundant interface and analyze and determine whether the signal output of the HDMI interface is normal. According to the technical scheme, under the condition that an external display is not externally connected, the computer is utilized to automatically realize the test of the HDMI of the computer, so that time and labor are saved, the efficiency is high, and the unified judgment standard can be realized.
Description
Technical Field
The application relates to the technical field of computer equipment testing, in particular to a computer HDMI interface testing system.
Background
The conventional HDMI (High Definition Multimedia Interface, high definition multimedia) interface test is to connect an HDMI interface of a computer to be tested with a display, and an operator checks whether the displayed content is correct or not through the display, so as to determine whether the signal output by the HDMI interface of the computer to be tested is normal or not.
The signals output by the HDMI are displayed by means of the external display, the signals are not foolproof in a manual observation mode, and operators have no unified standard for color perception, so that consistency is lacking in testing and judging of the computer HDMI, all testing steps are finished manually, time and labor are wasted, and efficiency is low.
Disclosure of Invention
An object of the embodiment of the application is to provide a computer HDMI interface test system, which can automatically realize the test of a computer HDMI interface by using a computer under the condition of not externally connecting an external display, and has the advantages of time saving, labor saving, high efficiency and unified judgment standard.
A computer HDMI interface test system comprises a computer and a conversion device: the computer comprises an HDMI interface, a redundant interface and a controller; the controller is in signal connection with the HDMI interface and the redundant interface;
the conversion device is independent of the computer, one end of the conversion device is connected with the HDMI interface circuit, the other end of the conversion device is connected with the redundant interface circuit, and the conversion device is used for converting HDMI signal data sent by the HDMI interface into video signal data which can be received by the redundant interface;
the controller is configured to: in a first aspect, the controller is configured to send HDMI signal data to the HDMI interface; in a second aspect, the controller is configured to receive video signal data from the redundant interface and analyze and determine whether the signal output of the HDMI interface is normal.
In one embodiment, the redundant interface is a USB interface.
In one embodiment, the conversion device includes an HDMI line and an HDMI sink; one end of the HDMI wire is connected with the HDMI interface circuit, the other end of the HDMI wire is connected with the HDMI collector circuit, and the HDMI wire transmits HDMI signal data of the HDMI interface to the HDMI collector; the end of the HDMI collector is connected with the USB interface, and the HDMI collector converts HDMI signal data transmitted by the HDMI line into USB video signal data which can be identified by the USB interface.
In one embodiment, the controller includes a setting module, a receiving module, a converting module and a calculating module, the setting module is in signal connection with the calculating module, the receiving module is in signal connection with the USB interface, and the converting module is in signal connection with the receiving module and the calculating module. The setting module is used for setting an RGB signal standard value and a fluctuation range value and transmitting the RGB signal standard value and the fluctuation range value to the calculating module; the receiving module is used for enabling the controller to acquire USB video signal data from the USB interface and transmitting the USB video signal data to the conversion module; the conversion module is used for enabling the controller to convert the USB video signal data into RGB signal actual values and transmitting the RGB signal actual values to the calculation module; the calculating module is used for enabling the controller to calculate the difference value between the actual value of the RGB signal and the standard value of the RGB signal; if the difference value is within the fluctuation range value, the HDMI interface signal data output of the computer is normal; if the difference value is not in the fluctuation range value, the HDMI signal data output of the computer is abnormal.
In one embodiment, the computer further comprises a display device; the controller comprises an instruction transmitting module, an instruction receiving module and a processing module, wherein the instruction transmitting module is in signal connection with the instruction receiving module, the instruction receiving module is in signal connection with the processing module, and the processing module is in signal connection with the HDMI interface. The instruction transmitting module is used for transmitting a test instruction to the instruction receiving module of the controller; the instruction receiving module is used for enabling the controller to receive the test instruction and enabling the display device of the computer to sequentially display a plurality of preset test pictures; the processing module is used for enabling the controller to output HDMI signal data corresponding to the test pictures through an HDMI interface of the computer after the display of each test picture is completed.
In one embodiment, the test frames displayed by the display device include red, green, blue, black, white, and gray six-color frames.
In one embodiment, the computer further comprises an audible device coupled to the controller for sounding an alarm when the difference is not within the fluctuation range.
Compared with the prior art, the beneficial effects of this application are:
when the computer HDMI interface test system is used for testing the computer HDMI interface, the computer HDMI interface test system is not externally connected with a display, the HDMI interface of the computer is only required to send HDMI signal data during testing, the redundant interface of the computer receives video signal data converted by the conversion device, the computer controller is used for analysis and judgment, an operator only needs to send the HDMI signal data to the HDMI interface through the controller in the whole process, other automatic completion is realized, manual participation is reduced, work fool-proofing is realized, time and labor are saved, and efficiency is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered limiting the scope, and that other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a flowchart of a method for testing a computer HDMI interface according to an embodiment of the present application;
FIG. 2 is a flowchart of step S1 in FIG. 1;
FIG. 3 is a flowchart of step S3 in FIG. 1;
fig. 4 is a schematic diagram illustrating a composition of a computer HDMI interface test system according to an embodiment of the present application.
In the figure: 10. a computer; 11. an HDMI interface; 12. a redundant interface; 13. a controller; 20. a conversion device; 21. an HDMI line; 22. an HDMI collector.
Detailed Description
For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, which are generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, as provided in the accompanying drawings, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.
It should be noted that, the "computer" in the present application may be a desktop computer or a notebook computer loaded with a windows system, a Linux system, etc., or may be an industrial personal computer loaded with a windows system, an android system, etc., or may be other devices with HDMI interfaces.
It should be further noted that the technical features of the embodiments may be combined with each other without conflict.
Example 1:
as shown in fig. 1, embodiment 1 provides a computer HDMI interface testing method, which includes the following steps:
s1, sending HDMI signal data from a computer to an HDMI interface;
s2, HDMI signal data are transmitted to the computer;
s3, acquiring and analyzing the returned HDMI signal data to judge whether the signal output of the HDMI interface is normal.
When the scheme of the embodiment is used for testing the HDMI interface of the computer, an external display is not needed, the HDMI interface of the computer only needs to send HDMI signal data, the computer receives the HDMI signal data, analysis and judgment are carried out, the whole process only needs an operator to trigger the step S1, other steps are automatically completed, manual participation is reduced, work foolproof is realized, time and labor are saved, and efficiency is improved. Meanwhile, the judgment standard of the signals output by the HDMI is not dependent on subjective judgment of operators, so that the defect of subjective judgment is avoided, the accuracy of testing is improved, and the unified control of the quality of the HDMI is also facilitated.
As shown in fig. 2, for a computer with its own display device, step S1 of transmitting HDMI signal data from the computer to the HDMI interface includes the steps of:
s11, sending out a test instruction;
s12, receiving a test instruction, and sequentially displaying a plurality of preset test pictures on a display device;
and S13, after each test picture is displayed, outputting HDMI signal data corresponding to the test picture by an HDMI interface of the computer.
In step S11, the operator may send a test instruction to the computer by using a mouse, a keyboard key, other physical buttons, or clicking a button on the touch screen. After the computer receives the test instruction, the test screen on its display device may display a plurality of pictures pre-stored in the computer, but preferably, a red, green, blue, black, white, gray six-color screen is used as the test screen.
Further, step S2 of transmitting HDMI signal data back to the computer includes: and converting the HDMI signal data sent by the HDMI interface into USB video signal data and transmitting the USB video signal data back to the computer USB interface. Thus, the redundant interfaces of the computer can be fully utilized. But generally needs to ensure that the USB interface has passed the test, has no faults, and has data transmission meeting standard requirements.
The USB interface includes, but is not limited to, types such as Type-A, type-B, type-C, miniUSB, microUSB.
The HDMI interface and the USB interface are connected through wireless connection, the USB interface is connected with a wireless receiver in an inserting mode, the HDMI interface is connected with an HDMI acquisition card with a wireless transmitter in an inserting mode, and the HDMI acquisition card converts HDMI signal data into USB video signal data and then sends the USB video signal data through the wireless receiver to be received by the USB interface wireless receiver.
In addition, the HDMI interface and the USB interface can be connected in a wired mode, namely the input end of the HDMI acquisition card is connected with the HDMI interface through an HDMI line, and the output end of the HDMI acquisition card is connected with the interface matched with the USB interface.
Further, in order to unify the judgment standards of the HDMI interface test, as shown in fig. 3, step S3 of acquiring and analyzing the returned HDMI signal data to judge whether the signal output of the HDMI interface is normal includes the following steps:
s31, setting an RGB signal standard value and a fluctuation range value;
s32, acquiring USB video signal data from a computer USB interface;
s33, converting the USB video signal data into RGB signal actual values;
s34, calculating the difference value between the RGB signal actual value and the RGB signal standard value; if the difference value is within the fluctuation range value, the signal data output of the HDMI of the computer is normal; if the difference value is not in the fluctuation range value, the computer HDMI interface signal data output is abnormal.
In one embodiment, if the difference is not within the fluctuation range, the computer HDMI interface signal data is output abnormally, and the audio device of the computer may sound an alarm to alert the operator.
Example 2:
as shown in fig. 4, the present embodiment provides a computer HDMI interface test system, which includes a computer 10 and a conversion device 20. Wherein the computer 10 includes an HDMI interface 11, a redundant interface 12, and a controller 13; the controller 13 is in signal connection with the HDMI interface 11 and the redundant interface 13, where the signal connection is a circuit structure connection.
The conversion device 20 is independent from the computer 10, one end of the conversion device 20 is connected with the HDMI interface 11 in a circuit manner, and the other end of the conversion device is connected with the redundant interface 12 in a circuit manner, and the conversion device 20 is used for converting the HDMI signal data sent out by the HDMI interface 11 into video signal data which can be received by the redundant interface 12.
The controller 13 is configured to: in the first aspect, the controller 13 is configured to send HDMI signal data to the HDMI interface 11; in the second aspect, the controller 13 is configured to receive video signal data from the redundant interface 12 and analyze and determine whether the signal output of the HDMI interface 11 is normal.
In the scheme of the embodiment, when the computer HDMI interface test is performed, an external display is not required, the HDMI interface 11 of the computer 10 is only required to send HDMI signal data, the redundant interface 12 of the computer 10 is used for receiving the video signal data converted by the conversion device 20, the computer 10 controller 13 is used for analysis and judgment, an operator only needs to send the HDMI signal data to the HDMI interface 11 through the controller 13 in the whole process, other parts can automatically work, manual participation is reduced, work fool-proofing is realized, time and labor are saved, and efficiency is improved.
In one embodiment, the redundant interface 12 may be a VGAVideo Graphics Array, video graphics array interface, DPDisplayPort interface, etc. of the computer 10, but for compatibility, the redundant interface 12 preferably uses a USB interface that is ubiquitous on the computer 10, which is required to be a properly functioning interface under test.
In one embodiment, as shown in fig. 4, the conversion device 20 includes an HDMI line 21 and an HDMI sink 22. One end of the HDMI line 21 is in circuit connection with the HDMI interface 11, the other end of the HDMI line 21 is in circuit connection with the HDMI collector 22, and the HDMI line 21 transmits HDMI signal data of the HDMI interface 11 to the HDMI collector 22. The end of the HDMI collector 22 is connected with a USB interface, and the HDMI collector 22 converts HDMI signal data transmitted by the HDMI line 21 into USB video signal data which can be identified by the USB interface.
In one embodiment, the controller 13 includes a setting module, a receiving module, a converting module, and a calculating module, where the setting module is in signal connection with the calculating module, the receiving module is in signal connection with the USB interface, and the converting module is in signal connection with the receiving module and the calculating module: the setting module is used for setting an RGB signal standard value and a fluctuation range value and transmitting the RGB signal standard value and the fluctuation range value to the calculating module; the receiving module is used for enabling the controller 13 to acquire USB video signal data from the USB interface and transmit the USB video signal data to the converting module; the conversion module is used for enabling the controller 13 to convert the USB video signal data into RGB signal actual values and transmitting the RGB signal actual values to the calculation module; the calculating module is used for enabling the controller 13 to calculate the difference value between the actual value of the RGB signal and the standard value of the RGB signal; if the difference value is within the fluctuation range value, the signal data output of the HDMI 11 of the computer 10 is normal; if the difference is not within the fluctuation range, the HDMI interface 11 of the computer 10 signals abnormal data output.
In one embodiment, as shown in FIG. 4, the computer further includes a display device. The controller 13 also includes an instruction transmitting module, an instruction receiving module, and a processing module, where the instruction transmitting module is in signal connection with the instruction receiving module, the instruction receiving module is in signal connection with the processing module, and the processing module is in signal connection with the HDMI interface 11: the instruction transmitting module is used for transmitting a test instruction to the instruction receiving module of the controller 13; the instruction receiving module is used for enabling the controller 13 to receive the test instruction and enabling the display device of the computer 10 to sequentially display a plurality of preset test pictures; the processing module is configured to, after each test frame is displayed, enable the controller 13 to output HDMI signal data corresponding to the test frame from the HDMI interface 11 of the computer 10.
In one embodiment, the test frames displayed by the display device preferably include red, green, blue, black, white, and gray six-color frames.
In one embodiment, the computer 10 further comprises an audible device coupled to the controller 13 for sounding an alarm when the difference is not within the fluctuation range value.
Note that, the computer HDMI interface test system of the present embodiment can implement the computer HDMI interface test method of embodiment 1, so that the effects of embodiment 1 can be achieved.
It should be noted that, as used in this embodiment, "circuit connection" generally refers to a circuit connection in physical contact. The term "signal connection" generally refers to transmission of an electrical signal between two, and the transmission may be performed by a directly connected circuit structure, or may have other electronic components on the connected circuit structure.
Example 3:
the present embodiment provides a computer device including a memory and a processor, wherein the processor is configured to execute a computer program stored in the memory to implement the steps of the computer HDMI interface testing method in embodiment 1.
Computer devices include, but are not limited to, desktop computers, notebook computers, industrial personal computers, and the like.
Example 4:
the present embodiment provides a computer-readable storage medium having a computer program stored thereon, which when executed by a processor, implements the steps of the computer HDMI interface testing method in embodiment 1.
Computer-readable storage media may include, but are not limited to, floppy diskettes, optical disks, CD-ROMs (compact disk-read Only memory), magneto-optical disks, ROMs (read Only memory), RAMs (random Access memory), EPROMs (erasable programmable read Only memory), EEPROMs (electrically erasable programmable read Only memory), magnetic or optical cards, flash memory, or other type of media/machine-readable medium suitable for storing machine-executable instructions. The computer readable storage medium may be an article of manufacture that is not accessed by a computer device or may be a component used by an accessed computer device.
The foregoing is merely a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and variations may be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.
Claims (7)
1. A computer HDMI interface test system, characterized by comprising a computer (10) and a conversion device (20):
the computer (10) comprises an HDMI interface (11), a redundant interface (12) and a controller (13);
the controller (13) is in signal connection with the HDMI interface (11) and the redundant interface (12);
the conversion device (20) is independent of the computer (10), one end of the conversion device is in circuit connection with the HDMI (high-definition multimedia interface) 11, the other end of the conversion device is in circuit connection with the redundant interface (12), and the conversion device (20) is used for converting HDMI signal data sent by the HDMI (high-definition multimedia interface) 11 into video signal data which can be received by the redundant interface (12);
the controller (13) is configured to:
in a first aspect, the controller (13) is configured to send HDMI signal data to the HDMI interface (11);
in a second aspect, the controller (13) is configured to receive the video signal data from the redundant interface (12) and analyze and determine whether or not the signal output of the HDMI interface (11) is normal.
2. The computer HDMI interface test system according to claim 1, wherein said redundant interface (12) is a USB interface.
3. The computer HDMI interface test system according to claim 2, wherein said conversion means (20) comprises an HDMI line (21) and an HDMI sink (22);
one end of the HDMI line (21) is in circuit connection with the HDMI interface (11), the other end of the HDMI line is in circuit connection with the HDMI collector (22), and the HDMI line (21) transmits HDMI signal data of the HDMI interface (11) to the HDMI collector (22);
the end of the HDMI collector (22) is connected with the USB interface, and the HDMI collector (22) converts HDMI signal data transmitted by the HDMI wire (21) into USB video signal data which can be identified by the USB interface.
4. A computer HDMI interface test system according to claim 3, wherein the controller (13) comprises a setting module, a receiving module, a converting module and a calculating module, the setting module is in signal connection with the calculating module, the receiving module is in signal connection with the USB interface, and the converting module is in signal connection with the receiving module and the calculating module:
the setting module is used for setting an RGB signal standard value and a fluctuation range value and transmitting the RGB signal standard value and the fluctuation range value to the calculating module;
the receiving module is used for enabling the controller (13) to acquire USB video signal data from the USB interface and transmit the USB video signal data to the converting module;
the conversion module is used for enabling the controller (13) to convert USB video signal data into RGB signal actual values and transmitting the RGB signal actual values to the calculation module;
the calculation module is used for enabling the controller (13) to calculate the difference value between the actual value of the RGB signal and the standard value of the RGB signal; if the difference value is within the fluctuation range value, outputting the signal data of the HDMI interface (11) of the computer (10) normally; if the difference value is not within the fluctuation range value, the signal data output of the HDMI interface (11) of the computer (10) is abnormal.
5. The computer HDMI interface test system of any one of claims 1 to 4, wherein said computer further comprises a display device;
the controller (13) comprises an instruction transmitting module, an instruction receiving module and a processing module, wherein the instruction transmitting module is in signal connection with the instruction receiving module, the instruction receiving module is in signal connection with the processing module, and the processing module is in signal connection with the HDMI interface (11):
the instruction transmitting module is used for transmitting a test instruction to the instruction receiving module of the controller (13);
the instruction receiving module is used for enabling the controller (13) to receive a test instruction and enabling the display device of the computer (10) to sequentially display a plurality of preset test pictures;
the processing module is used for enabling the controller (13) to output HDMI signal data corresponding to the test pictures through an HDMI interface (11) of the computer (10) after each test picture is displayed.
6. The system of claim 5, wherein the test frames displayed by the display device comprise six colors of red, green, blue, black, white, and gray.
7. The computer HDMI interface test system according to claim 4, wherein said computer (10) further comprises an acoustic device connected to said controller (13) for sounding an alarm when said difference is not within a fluctuation range value.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202320043771.3U CN219143449U (en) | 2023-01-06 | 2023-01-06 | Computer HDMI interface test system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202320043771.3U CN219143449U (en) | 2023-01-06 | 2023-01-06 | Computer HDMI interface test system |
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| CN219143449U true CN219143449U (en) | 2023-06-06 |
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