CN116095303A - Audio and video signal source test control system and method - Google Patents

Audio and video signal source test control system and method Download PDF

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Publication number
CN116095303A
CN116095303A CN202211697909.8A CN202211697909A CN116095303A CN 116095303 A CN116095303 A CN 116095303A CN 202211697909 A CN202211697909 A CN 202211697909A CN 116095303 A CN116095303 A CN 116095303A
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China
Prior art keywords
signal source
signal
source host
audio
test
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Chinese (zh)
Inventor
杨铁超
单琳伟
房海东
王利芳
赵霞飞
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National Engineering Laboratory For Digital Tv Beijing Co ltd
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National Engineering Laboratory For Digital Tv Beijing Co ltd
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Priority to CN202211697909.8A priority Critical patent/CN116095303A/en
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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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/222—Studio circuitry; Studio devices; Studio equipment
    • H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
    • H04N5/268—Signal distribution or switching
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/01—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level
    • H04N7/0117—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level involving conversion of the spatial resolution of the incoming video signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/01—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level
    • H04N7/0125—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level one of the standards being a high definition standard
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
    • Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • General Health & Medical Sciences (AREA)
  • Computer Graphics (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)

Abstract

The invention discloses an audio and video signal source test control system and method, comprising the following steps: the touch screen comprises a touch screen control end, a signal source host end and display equipment, wherein each signal source host end corresponds to one display equipment; the touch screen control end is used for: based on the touch signals, generating test control signals for controlling the signal source host end, and sending each test control signal to the corresponding signal source host end; the signal source host end is used for: when a test control signal sent by a touch screen control end is received, generating a target image signal according to at least one audio/video test item corresponding to the test control signal and sending the target image signal to display equipment corresponding to a signal source host end, so that the display equipment executes each audio/video test item corresponding to the target image signal. According to the invention, the control terminal is separated from the audio/video signal source host, so that hardware resources of the audio/video signal source are saved, the problems of blocking and dead halt of the traditional audio/video signal source are avoided, and the simplicity of audio/video test is improved.

Description

Audio and video signal source test control system and method
Technical Field
The invention relates to the technical field of test signal detection, in particular to an audio and video signal source test control system and method.
Background
The two traditional methods for controlling the audio and video signal sources have advantages and disadvantages, namely key control and screen display, because the audio and video signal sources can perform calculation, generation and output of high-definition, 4K and 8K test signals, the calculation amount is huge, and especially for a mobile terminal, the processor resources and the performance of the mobile terminal are bottlenecks, so that the key and screen display functions of the method occupy the hardware resources of a system, simultaneously load the processor, and the phenomena of system operation blocking, heating, dead halt and the like are often caused; the other method is to adopt the method control of the upper computer software, the method reduces the occupation of system resources, but the control method is complex and not visual, and meanwhile, the debugging needs the cooperation of the upper computer software, so that the method is difficult to deal with changeable test scenes.
Therefore, it is needed to provide a technical solution to solve the above technical problems.
Disclosure of Invention
In order to solve the technical problems, the invention provides an audio and video signal source test control system and method.
The invention relates to a technical scheme of an audio and video signal source test control system, which comprises the following steps:
comprising the following steps: the touch screen comprises a touch screen control end, a plurality of signal source host ends and a plurality of display devices, wherein each signal source host end corresponds to one display device;
the touch screen control end is used for: based on a touch signal sent by a user, generating at least one test control signal for controlling a signal source host end, and respectively sending each test control signal to a corresponding signal source host end;
any signal source host side is used for: when a test control signal sent by the touch screen control end is received, generating a target image signal according to at least one audio/video test item corresponding to the test control signal and sending the target image signal to display equipment corresponding to the signal source host end, so that the display equipment executes each audio/video test item corresponding to the target image signal.
The audio and video signal source test control system has the following beneficial effects:
according to the system, the control terminal is separated from the audio/video signal source host, so that hardware resources of the audio/video signal source are greatly saved, the problems of blocking and dead halt of the traditional audio/video signal source are effectively avoided, and the simplicity of audio/video testing is improved.
Based on the scheme, the audio and video signal source test control system can be improved as follows.
Further, the host side of any signal source is further configured to: when the display equipment corresponding to the signal source host end completes any audio and video test item corresponding to the display equipment, generating a feedback signal corresponding to the audio and video test item and sending the feedback signal to the touch screen control end;
the touch screen control end is also used for: analyzing any feedback signal to obtain test feedback content corresponding to the feedback signal, and displaying the test feedback content until the test feedback content corresponding to each feedback signal is displayed.
Further, the touch screen control terminal is specifically configured to:
and receiving the touch signal sent by the user, analyzing the touch signal to obtain at least one signal source host end number and at least one audio/video test item corresponding to each signal source host end number, generating a test control signal of the signal source host end corresponding to any signal source host end number based on any signal source host end number and each audio/video test item corresponding to the signal source host end number, and sending the test control signal to the corresponding control signal source host end until each test control signal is respectively sent to the corresponding signal source host end.
Further, the touch screen control terminal is specifically configured to:
based on the first preset coding form, each test control signal is respectively sent to the corresponding signal source host end.
Further, the host side of any signal source is specifically configured to:
and based on a second preset coding form, sending a feedback signal corresponding to each audio and video test item of the signal source host to the touch screen control end.
Further, the at least one audio video test item includes: at least one of resolution switching, timing switching, and picture switching.
Further, the touch screen control end and any signal source host end communicate through an RS232 serial port protocol or a serial port wireless module.
The invention relates to a method for controlling audio and video signal source test, which comprises the following steps:
the touch screen control terminal generates at least one test control signal for controlling the signal source host terminal based on the touch signal sent by the user, and sends each test control signal to the corresponding signal source host terminal respectively;
when any signal source host receives a test control signal sent by the touch screen control end, generating a target image signal according to at least one audio/video test item corresponding to the test control signal and sending the target image signal to display equipment corresponding to the signal source host so that the display equipment executes each audio/video test item corresponding to the target image signal; each signal source host end corresponds to one display device.
The audio and video signal source test control method has the following beneficial effects:
according to the method, the control terminal is separated from the audio/video signal source host, so that hardware resources of the audio/video signal source are greatly saved, the problems of blocking and dead halt of the traditional audio/video signal source are effectively avoided, and the simplicity of audio/video testing is improved.
Based on the scheme, the audio and video signal source test control method can be improved as follows.
Further, the method further comprises the following steps:
when the display equipment corresponding to any signal source host end completes any audio and video test item corresponding to the display equipment, the signal source host end generates a feedback signal corresponding to the audio and video test item and sends the feedback signal to the touch screen control end;
the touch screen control end analyzes any feedback signal to obtain test feedback content corresponding to the feedback signal, and displays the test feedback content until the test feedback content corresponding to each feedback signal is displayed.
Further, the step of generating at least one test control signal for controlling the signal source host end by the touch screen control end based on the touch signal sent by the user, and sending each test control signal to the corresponding signal source host end, includes:
the touch screen control end receives the touch signal sent by the user, analyzes the touch signal to obtain at least one signal source host end number and at least one audio/video test item corresponding to each signal source host end number, generates a test control signal of the signal source host end corresponding to any signal source host end number based on any signal source host end number and each audio/video test item corresponding to the signal source host end number, and sends the test control signal to the corresponding control signal source host end until each test control signal is respectively sent to the corresponding signal source host end.
Drawings
Fig. 1 is a schematic diagram of a first structure of an embodiment of an audio/video signal source test control system according to the present invention;
fig. 2 is a schematic diagram of a second structure of an embodiment of an audio/video signal source test control system according to the present invention;
fig. 3 is a schematic display diagram of a touch screen corresponding to the touch screen control end 110 in an embodiment of an audio/video signal source test control system provided by the present invention;
fig. 4 is a schematic flow chart of an embodiment of an audio/video signal source test control method provided by the invention.
Detailed Description
Fig. 1 is a schematic structural diagram of an embodiment of an audio/video signal source test control system according to the present invention. As shown in fig. 1, the system 100 includes: a touch screen control terminal 110, a plurality of signal source host terminals 120, and a plurality of display devices 130.
Wherein, (1) the touch screen control terminal 110 is: a control terminal employing an LCD touch screen and integrating a separate touch processing unit. (2) The signal source host 120 is: the signal generator may be other devices with similar functions. (3) The display device is as follows: the display screen can also be other devices with display functions. (4) Each source host side 120 corresponds to a display device 130.
The touch screen control terminal 110 is configured to: based on the touch signal sent by the user, at least one test control signal for controlling the signal source host end 120 is generated, and each test control signal is sent to the corresponding signal source host end 120.
Wherein, (1) the touch signal is: the user completes the display of the control interface by touching the screen of the touch screen control terminal 110, and the touch information is reported to the processor of the touch screen control terminal for processing the generated signal. (2) The test control signal is: the control signal source host 120 executes a signal corresponding to the audio/video test item, which is equivalent to the serial command sent by the touch screen control 110. (3) Each source host side 120 receives a test control signal.
Any source host 120 is configured to: when receiving the test control signal sent by the touch screen control end 110, a target image signal is generated according to at least one audio/video test item corresponding to the test control signal and sent to the display device 130 corresponding to the signal source host end, so that the display device 130 executes each audio/video test item corresponding to the target image signal.
Wherein (1) each test control signal corresponds to at least one audio/video test item. (2) Audio and video test items include, but are not limited to: resolution switching, timing switching, picture switching, and the like. (3) The target image signal is: the signal source host 120 generates an image signal according to each audio/video test item corresponding to the test control signal, where the signal is used to enable the corresponding display device to execute each audio/video test item corresponding to the test control signal.
Preferably, the host side 120 of any signal source is further configured to: when the display device 130 corresponding to the signal source host 120 completes any audio/video test item corresponding to the display device 130, a feedback signal corresponding to the audio/video test item is generated and sent to the touch screen control end 110.
Wherein, the feedback signal is: the signal source host 120 receives the feedback information signal corresponding to the audio/video test item generated when the corresponding display device completes any audio/video test item. For example, when the audio/video test item (e.g., resolution switch) of the display device 130 corresponding to the source host 120 is executed, the source host 120 generates a test feedback content of the resolution switch test item, and sends the test feedback content to the touch screen control terminal 110 in the form of a signal.
The touch screen control terminal 110 is further configured to: analyzing any feedback signal to obtain test feedback content corresponding to the feedback signal, and displaying the test feedback content until the test feedback content corresponding to each feedback signal is displayed.
Wherein (1) each feedback signal corresponds to a test feedback content. (2) The test feedback content is displayed in text form.
Preferably, the touch screen control terminal 110 is specifically configured to:
and receiving the touch signal sent by the user, analyzing the touch signal to obtain at least one signal source host end number and at least one audio/video test item corresponding to each signal source host end number, generating a test control signal of the signal source host end 120 corresponding to the signal source host end number based on any signal source host end number and each audio/video test item corresponding to the signal source host end number, and sending the test control signal to the corresponding control signal source host end 120 until each test control signal is respectively sent to the corresponding signal source host end 120.
The signal source host end numbers are as follows: and the number corresponding to each signal source host end connected with the touch screen control end 110.
For example, when the number of signal source host terminals is 3, the touch screen control terminal 110 sets the number of the first signal source host terminal to 01, the number of the second signal source host terminal to 02, and the number of the third signal source host terminal to 03. Assuming that the touch screen control terminal 110 parses the touch signal, the number of the signal source host terminal is: 01, audio and video test items are: resolution switching and timing switching; the signal source host end is numbered as follows: 02, the audio and video test items are: switching resolution; the signal source host end is numbered as follows: 03, audio and video test items are: resolution switching, timing switching, and picture switching. At this time, the touch screen control terminal 110 is configured to: 01, audio and video test items are: the method comprises the steps of generating a test control signal of a first signal source host end by resolution switching and time sequence switching, and sending the test control signal to the first signal source host end; according to the signal source host end numbering: 02, the audio and video test items are: the resolution ratio is switched to generate a test control signal of the second signal source host end and send the test control signal to the second signal source host end, and the number of the signal source host end is as follows: 03, audio and video test items are: the resolution ratio switching, the time sequence switching and the picture switching generate a test control signal of the third signal source host end and send the test control signal to the third signal source host end.
Preferably, the touch screen control terminal 110 is specifically configured to:
based on the first preset encoding form, each test control signal is sent to the corresponding signal source host 120.
Preferably, the host side 120 of any signal source is specifically configured to:
and based on the second preset coding form, sending a feedback signal corresponding to each audio/video test item of the signal source host to the touch screen control end 110.
In order to ensure the stability of data transmission at both ends, prevent system instability caused by circuit crosstalk, and increase the readability of instructions, table 1 shows the relevant information of the preset encoding form. The preset encoding form can be applied to a first preset encoding form and can also be applied to a second preset encoding form.
Frame header Interface numbering Control numbering Data content Frame end interval Frame end
hh hh hh Length of indefinite length hh hhhh
The first preset encoding mode and the second preset encoding mode may be the same or different, and the present invention is not limited thereto. (2) The data content is data with indefinite length, so two 16-bit characters are reserved between the data content and the frame tail for distinguishing. (3) As shown in fig. 2, the touch screen control terminal 110 includes a plurality of interface numbers and key numbers in the corresponding touch screen. The interface number and the key number are two 16-digit numbers, so that the maximum number is 256, and the two numbers are combined to determine which control module of which page in the screen is changed. In this embodiment, the touch screen includes a plurality of operable screens, and different screens have interface numbers uniquely corresponding thereto; similarly, in the same interface, different buttons and text boxes have different key numbers. As shown in fig. 3, a certain interface includes a plurality of different keys, and a plurality of such interfaces exist in the system, and different interfaces also have different interface numbers.
Preferably, the at least one audio/video test item includes: at least one of resolution switching, timing switching, and picture switching.
It should be noted that, besides the above audio and video test items, the method may further include: (1) switching frame rate; (2) the different test images are switched to comprise color bars, checkerboards, gray-scale images, composite test patterns and natural images; (3) setting bit depth; (4) setting a color gamut; (5) setting a sampling space; (6) HDR selection; (7) HDCP configuration; (8) EDID reading and displaying functions, and the like.
Preferably, the touch screen control end 110 and any signal source host end 120 communicate with each other through an RS232 serial protocol or a serial wireless module.
According to the technical scheme, the control terminal is separated from the audio/video signal source host, so that hardware resources of the audio/video signal source are greatly saved, the problems of blocking and dead halt of the traditional audio/video signal source are effectively avoided, and the simplicity of audio/video testing is improved.
Fig. 4 is a schematic flow chart of an embodiment of an audio/video signal source test control method provided by the invention. As shown in fig. 4, the method comprises the steps of:
step 210: the touch screen control terminal 110 generates at least one test control signal for controlling the signal source host terminal 120 based on the touch signal sent by the user, and sends each test control signal to the corresponding signal source host terminal 120.
Step 220: when any signal source host end 120 receives the test control signal sent by the touch screen control end 110, generating a target image signal according to at least one audio/video test item corresponding to the test control signal and sending the target image signal to display equipment 130 corresponding to the signal source host end 120, so that the display equipment 130 executes each audio/video test item corresponding to the target image signal; wherein, each signal source host 120 corresponds to one display device 130.
Preferably, the method further comprises:
when the display device 130 corresponding to the host end 120 of any signal source completes any audio/video test item corresponding to the display device 130, the host end 120 of the signal source generates a feedback signal corresponding to the audio/video test item and sends the feedback signal to the touch screen control end 110;
the touch screen control end 110 analyzes any feedback signal to obtain a test feedback content corresponding to the feedback signal, and displays the test feedback content until the test feedback content corresponding to each feedback signal is displayed.
Preferably, step 210 includes:
the touch screen control terminal 110 receives the touch signal sent by the user, analyzes the touch signal to obtain at least one signal source host terminal number and at least one audio/video test item corresponding to each signal source host terminal number, generates a test control signal of the signal source host terminal 120 corresponding to any signal source host terminal number based on any signal source host terminal number and each audio/video test item corresponding to the signal source host terminal number, and sends the test control signal to the corresponding control signal source host terminal 120 until each test control signal is respectively sent to the corresponding signal source host terminal 120.
According to the technical scheme, the control terminal is separated from the audio/video signal source host, so that hardware resources of the audio/video signal source are greatly saved, the problems of blocking and dead halt of the traditional audio/video signal source are effectively avoided, and the simplicity of audio/video testing is improved.
The steps for implementing the corresponding functions by the parameters and steps in the method for testing and controlling an audio and video signal source according to the present embodiment may refer to the parameters and the modules in the embodiment of the system for testing and controlling an audio and video signal source, which are not described herein.
In the description provided herein, numerous specific details are set forth. It will be appreciated, however, that embodiments of the invention may be practiced without such specific details. Similarly, in the above description of exemplary embodiments of the invention, various features of embodiments of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of one or more of the various inventive aspects. Wherein the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this invention.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The use of the words first, second, third, etc. do not denote any order. These words may be interpreted as names. The steps in the above embodiments should not be construed as limiting the order of execution unless specifically stated.

Claims (10)

1. An audio/video signal source test control system, comprising: the touch screen comprises a touch screen control end, a plurality of signal source host ends and a plurality of display devices, wherein each signal source host end corresponds to one display device;
the touch screen control end is used for: based on a touch signal sent by a user, generating at least one test control signal for controlling a signal source host end, and respectively sending each test control signal to a corresponding signal source host end;
any signal source host side is used for: when a test control signal sent by the touch screen control end is received, generating a target image signal according to at least one audio/video test item corresponding to the test control signal and sending the target image signal to display equipment corresponding to the signal source host end, so that the display equipment executes each audio/video test item corresponding to the target image signal.
2. The audio/video signal source test control system according to claim 1, wherein the any signal source host is further configured to: when the display equipment corresponding to the signal source host end completes any audio and video test item corresponding to the display equipment, generating a feedback signal corresponding to the audio and video test item and sending the feedback signal to the touch screen control end;
the touch screen control end is also used for: analyzing any feedback signal to obtain test feedback content corresponding to the feedback signal, and displaying the test feedback content until the test feedback content corresponding to each feedback signal is displayed.
3. The audio/video signal source test control system according to claim 1, wherein the touch screen control terminal is specifically configured to:
and receiving the touch signal sent by the user, analyzing the touch signal to obtain at least one signal source host end number and at least one audio/video test item corresponding to each signal source host end number, generating a test control signal of the signal source host end corresponding to any signal source host end number based on any signal source host end number and each audio/video test item corresponding to the signal source host end number, and sending the test control signal to the corresponding control signal source host end until each test control signal is respectively sent to the corresponding signal source host end.
4. The audio/video signal source test control system according to claim 3, wherein the touch screen control terminal is specifically configured to:
based on the first preset coding form, each test control signal is respectively sent to the corresponding signal source host end.
5. The audio/video signal source test control system according to claim 3, wherein the host side of any signal source is specifically configured to:
and based on a second preset coding form, sending a feedback signal corresponding to each audio and video test item of the signal source host to the touch screen control end.
6. The audio video signal source test control system according to any one of claims 1-5, wherein the at least one audio video test item comprises: at least one of resolution switching, timing switching, and picture switching.
7. The audio/video signal source test control system according to claim 6, wherein the touch screen control end and any signal source host end communicate through an RS232 serial protocol or a serial wireless module.
8. The audio and video signal source test control method is characterized by comprising the following steps of:
the touch screen control terminal generates at least one test control signal for controlling the signal source host terminal based on the touch signal sent by the user, and sends each test control signal to the corresponding signal source host terminal respectively;
when any signal source host receives a test control signal sent by the touch screen control end, generating a target image signal according to at least one audio/video test item corresponding to the test control signal and sending the target image signal to display equipment corresponding to the signal source host so that the display equipment executes each audio/video test item corresponding to the target image signal; each signal source host end corresponds to one display device.
9. The audio-video signal source test control method according to claim 8, further comprising:
when the display equipment corresponding to any signal source host end completes any audio and video test item corresponding to the display equipment, the signal source host end generates a feedback signal corresponding to the audio and video test item and sends the feedback signal to the touch screen control end;
the touch screen control end analyzes any feedback signal to obtain test feedback content corresponding to the feedback signal, and displays the test feedback content until the test feedback content corresponding to each feedback signal is displayed.
10. The audio/video signal source test control method according to claim 8, wherein the step of generating at least one test control signal for controlling a signal source host terminal by the touch screen control terminal based on a touch signal sent by a user, and sending each test control signal to a corresponding signal source host terminal, respectively, comprises:
the touch screen control end receives the touch signal sent by the user, analyzes the touch signal to obtain at least one signal source host end number and at least one audio/video test item corresponding to each signal source host end number, generates a test control signal of the signal source host end corresponding to any signal source host end number based on any signal source host end number and each audio/video test item corresponding to the signal source host end number, and sends the test control signal to the corresponding control signal source host end until each test control signal is respectively sent to the corresponding signal source host end.
CN202211697909.8A 2022-12-28 2022-12-28 Audio and video signal source test control system and method Pending CN116095303A (en)

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