CN114007022A - Video source switching method and device and LED display screen control system - Google Patents
Video source switching method and device and LED display screen control system Download PDFInfo
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- CN114007022A CN114007022A CN202010740016.1A CN202010740016A CN114007022A CN 114007022 A CN114007022 A CN 114007022A CN 202010740016 A CN202010740016 A CN 202010740016A CN 114007022 A CN114007022 A CN 114007022A
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- 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
- H04N5/2624—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 for obtaining an image which is composed of whole input images, e.g. splitscreen
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- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/765—Interface circuits between an apparatus for recording and another apparatus
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Abstract
The application relates to an input source switching method, an input source switching device and an LED display screen control system; the input source switching method includes, for example: establishing a communication channel with a terminal; receiving an input source sent by the terminal through the communication channel, and acquiring terminal information of the terminal; and switching the communication channel in response to the operation of the user, and displaying the image picture of the input source and the terminal information on an interactive interface. The method can solve the problems that a user cannot distinguish the input source to be displayed and cannot realize the switching and management of wired input sources and wireless input sources such as HDMI (high-definition multimedia interface) in a unified operation window.
Description
Technical Field
The application relates to the technical field of display, in particular to a video source switching method, a video source switching device and an LED display screen control system.
Background
With the large size of the LED display screen, the dot pitch is miniaturized, and the surface treatment process and the industrial design capability of the screen are improved, so that the LED display screen becomes a display terminal favored by users in the scenes of medium-sized and large-sized conference rooms, hotel meeting rooms, exhibition halls, schools and the like. Meanwhile, the control system of the LED conference screen has strong performance, and a plurality of input and output interfaces are often arranged to integrate various peripheral devices. On screen projection, screen projection is mainly performed through multi-channel High Definition Multimedia Interface (HDMI) input and wireless screen projection.
However, in practical use, the LED display screen controller only reads the interface address of the communication channel, and for which input source is finally displayed on the LED display screen, a user cannot clearly distinguish the input source, and often is in a "blind selection" state, and the user needs to switch the input source many times to find the content to be displayed. Meanwhile, since the HDMI interface and the wireless device are often different supply brands, the HDMI input source and the wireless input source cannot be quickly switched in the LED display screen control system, so that the user experience is not good when the HDMI and the wireless screen projection are used simultaneously.
Disclosure of Invention
Therefore, the present application provides a video source switching method, a video source switching device and an LED display screen control system, which can solve the problem that a user cannot distinguish an input source to be displayed and cannot switch and manage an HDMI input source and a wireless input source in a unified operation window.
Specifically, an embodiment of the present application provides a video source switching method, including: receiving an image picture of at least one input source transmitted by at least one terminal device; correspondingly generating at least one thumbnail picture of the at least one input source according to the image picture of the at least one input source; responding to a target thumbnail picture in the at least one thumbnail picture selected by user operation, generating a corresponding target switching instruction, and outputting and displaying an image picture of an input source corresponding to the target thumbnail picture in the at least one thumbnail picture selected by user operation according to the target switching instruction.
In the prior art, when an LED display screen receives an input source sent by an external terminal, an LED display screen controller only reads an interface address of a communication channel, a user cannot distinguish the input source to be displayed on an interactive interface, and the input sources need to be switched one by one when being switched; according to the embodiment of the application, the image pictures of the input sources sent by the LED display screen controller are received, the corresponding thumbnail pictures are generated according to the image pictures, when a user operates to switch the communication channel, the target thumbnail picture is selected, the user can clearly know the input source pictures corresponding to the input sources on the interactive interface, the input sources can be selected according to the pictures when needing to be switched, and the problems that blind selection is needed and the input sources need to be switched one by one are solved.
In an embodiment of the present application, the generating at least one thumbnail picture of the at least one input source according to the image picture of the at least one input source correspondingly includes: correspondingly displaying the at least one thumbnail picture of the at least one input source in an on-screen menu type adjusting mode according to the image picture of the at least one input source
In one embodiment of the present application, the image frame of the at least one input source includes a plurality of frame frames obtained by periodically grabbing image data of the at least one input source.
In an embodiment of the application, before the selecting, in response to a user operation, a target thumbnail screen of the at least one thumbnail screen, the method further includes: receiving and transmitting information of the at least one input source, wherein the information of the input source comprises input source interface type information and terminal equipment information; and displaying the input source interface type information and the terminal equipment information of the at least one input source in the thumbnail picture corresponding to the at least one input source.
In an embodiment of the present application, the at least one input source includes a wired input source and a wireless input source, and the input source interface type information respectively corresponds to a wired type interface and a wireless type interface.
In addition, an embodiment of the present application provides an input source switching apparatus, including: the image picture receiving module is used for receiving the image picture of at least one input source sent by at least one terminal device; the thumbnail picture generation module is used for correspondingly generating at least one thumbnail picture of the at least one input source according to the image picture of the at least one input source; and the image screen output module is used for responding to the operation of a user to select a target thumbnail screen in the at least one thumbnail screen, generating a corresponding target switching instruction, and outputting and displaying the image screen of the input source corresponding to the target thumbnail screen in the at least one thumbnail screen selected by the user operation according to the target switching instruction.
In one embodiment of the present application, the input source switching apparatus further includes: the information receiving module is used for receiving information of the at least one input source, wherein the information comprises input source interface type information and terminal equipment information; and displaying the input source interface type information and the terminal equipment information of the at least one input source in the thumbnail picture corresponding to the at least one input source.
In one embodiment of the present application, the image frame of the at least one input source includes a plurality of frame frames obtained by periodically grabbing image data of the at least one input source.
In an embodiment of the present application, the thumbnail picture generation module is specifically configured to: and correspondingly generating a thumbnail picture corresponding to the at least one input source according to the image picture of the at least one input source in a screen menu type adjusting mode.
Furthermore, this application embodiment provides a LED display screen control system, includes: an LED display screen controller; the LED display screen is connected with the LED display screen controller; the LED display screen controller is configured to execute the video source switching method according to any one of the above embodiments.
Furthermore, an embodiment of the present application provides an input source switching system, including: a memory storing a computer program and a processor executing the computer program to perform the input source switching method according to any one of the embodiments.
Furthermore, an embodiment of the present application provides a computer-readable storage medium, where computer-executable instructions are stored, and the computer-executable instructions are configured to execute the input source switching method according to any one of the above embodiments.
As can be seen from the above, the above technical features of the present application may have one or more of the following advantages: a) the LED display screen controller receives an image picture of an input source sent by external middle-end equipment, and generates a corresponding thumbnail picture according to the image picture, when a user operates to switch the communication channel, a target thumbnail picture is selected, the user can clearly know the input source picture corresponding to each input source on an interactive interface, and can select according to the picture when the input source needs to be switched, so that the problems of blind selection and one-by-one switching of the input sources are avoided; b) the user switches the input source through a screen menu type adjusting mode, and after the input source is switched, the image pictures of the input source received by the high-definition multimedia interface and the wireless module are displayed on the interactive interface, and the switching and management of the HDMI input source and the wireless input source are realized through one window.
Other aspects and features of the present application will become apparent from the following detailed description, which proceeds with reference to the accompanying drawings. It is to be understood, however, that the drawings are designed solely for purposes of illustration and not as a definition of the limits of the application. It should be further understood that the drawings are not necessarily drawn to scale and that, unless otherwise indicated, they are merely intended to conceptually illustrate the structures and procedures described herein.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
fig. 1 is a flowchart of an input source switching method according to a first embodiment of the present application;
FIG. 2 is a schematic structural diagram of a user interaction interface according to a first embodiment of the present application;
fig. 3 is a schematic structural diagram of an input source switching device according to a second embodiment of the present application;
fig. 4 is a schematic structural diagram of another input source switching device according to a second embodiment of the present application;
FIG. 5 is a schematic structural diagram of an LED display screen control system according to a third embodiment of the present application;
fig. 6 is a schematic structural diagram of an input source switching system according to a fourth embodiment of the present application;
fig. 7 is a schematic structural diagram of a computer-readable storage medium according to a fifth embodiment of the present application.
Description of the reference numerals
S11-S15: inputting a source switching method;
20: an input source switching device; 201: a channel establishing module; 203: an input source receiving module; 205: an image frame output module; 207: an information receiving module;
30: an LED display screen control system; 31: an LED display screen controller; 32: an LED display screen;
40: an input source switching system; 41: a processor; 42: a memory;
50: a computer readable storage medium.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will now be described with reference to the accompanying drawings in conjunction with embodiments.
In order to make those skilled in the art better understand the technical solutions of the present application, the technical solutions in 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 obvious that the described embodiments are only a part of the embodiments of the present application, and not all embodiments should fall within the scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and claims of the present application and in the above-described drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in other sequences than those illustrated or otherwise described herein. Furthermore, the method is simple. The terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
It should be noted that the division of the embodiments in the present application is only for convenience of description and should not be construed as a limitation, and features of various embodiments may be combined and referred to each other without contradiction.
[ first embodiment ] A method for manufacturing a semiconductor device
As shown in fig. 1, a video source switching method is proposed in the first embodiment of the present application, for example, including steps S11 to S15.
Step S11: receiving an image picture of at least one input source transmitted by at least one terminal device;
step S13: correspondingly generating at least one thumbnail picture of the at least one input source according to the image picture of the at least one input source;
s15: responding to a target thumbnail picture in the at least one thumbnail picture selected by user operation, generating a corresponding target switching instruction, and outputting and displaying an image picture of an input source corresponding to the target thumbnail picture in the at least one thumbnail picture selected by user operation according to the target switching instruction.
In step S11, the image frames of at least one input source sent by at least one terminal device are received, for example, by an LED display screen controller. The mentioned LED display screen controller is, for example, a transmitting card in an LED display screen control system, and includes, for example, a video source input interface, such as an HDMI interface or a DVI interface, a programmable logic device, such as an FPGA, a microcontroller, such as an MCU, a memory, such as a Flash memory, and an ethernet interface. Reference will now be made to terminal devices such as personal computers, hand-held devices, portable devices, tablet devices, multiprocessor systems, microprocessor-based systems, programmable consumer electronics, network PCs, minicomputers, mainframe computers, distributed computing environments that include any of the above systems or devices, and the like.
The LED display screen controller establishes a communication channel with an external terminal device for transmitting an input source, for example. The mentioned communication channel may be a wireless communication channel, for example, an AP hotspot provided by a terminal connected to a wireless module of the LED display screen controller through WIFI, and of course, the communication channel may also be a wired communication channel, for example, an HDMI channel, a DVI channel, and the like. The mentioned input source is, for example, media such as video, pictures, characters, etc., and the LED display screen controller receives the input source and then transmits the input source to the LED display screen to display an image picture.
Specifically, after the LED display screen controller establishes a communication channel with the terminal, for example, channel information of the communication channel is also acquired. The mentioned channel information includes, for example, interface address information and signal access status of communication channels, different communication channels have different interface address information, for example, a plurality of terminals are connected to the LED display screen controller through a plurality of HDMI interfaces, and the interface addresses are HDMI1, HDMI2, HDMI3, and the like. The mentioned signal access status is for example acquired by means of HPD (hot plug detect), a high HPD level indicating the start of the transmission of the signal.
In step S13, for example, the LED display controller generates at least one thumbnail image of at least one input source according to the received image of the at least one input source. As shown in fig. 4, the LED display controller displays a plurality of thumbnail screens through, for example, a user interactive interface, wherein one thumbnail screen corresponds to an image screen of one input source.
In one embodiment, as shown in fig. 2, the LED display controller, for example, also receives information that conveys the at least one input source, the information including input source interface type information and terminal device information. The mentioned input source interface type information is, for example, an HDMI interface type, a DVI interface type, a wireless hotspot interface type; the terminal device information mentioned is, for example, the user name of the terminal device. And displaying the input source interface type information and the terminal equipment information in a thumbnail picture corresponding to at least one input source, wherein a user can know the mode of transmitting the input source between an external terminal and the LED display screen controller according to the input source interface type information, and can know which terminal equipment the input source comes from according to the terminal equipment information.
In one embodiment, the image frames of the at least one input source received by the LED display controller include, for example, a plurality of frame frames obtained by the LED display controller periodically capturing image data of the at least one input source. Specifically, for example, after a preset time interval elapses each time, the LED display controller opens the communication channel and continues to read one frame of the input source. For example, if the preset time interval is 10 seconds, the LED display controller reads one frame of input source picture every 10 seconds, and stores the read input source picture in the internal storage area. Of course, the preset time interval may also be a time interval set by a user in a self-defined manner, and the application is not limited thereto. Therefore, the LED display screen controller reads a plurality of picture frames of the input source without reading a complete input source, the load of the LED display screen can be reduced, and a plurality of terminals can be connected to receive a plurality of input sources easily.
In step S15, for example, the LED display controller generates a corresponding target switching instruction in response to a user operation to select a target thumbnail screen among the at least one thumbnail screen. The mentioned user operation is, for example, a mouse click, a drag, a button press, or a touch screen operation performed by the user on the interactive interface. Specifically, for example, when the user clicks a thumbnail screen with a mouse and then clicks a determination button, the thumbnail screen is selected as the target thumbnail screen. The mentioned target switching instruction includes, for example, a transmission interface address of a target input source, and the LED display screen controller can switch the input source of the current output display to the target input source corresponding to the target thumbnail screen selected by the user operation according to the target switching instruction, and output and display the image screen of the target input source.
Therefore, a user can clearly know the input source pictures corresponding to the input sources on the interactive interface, and can select the input sources according to the pictures when the input sources need to be switched, so that the problem that the input sources need to be switched one by one due to blind selection is solved.
In one embodiment, for example, an LED display screen controller generates a thumbnail picture corresponding to at least one input source through an on-screen display (OSD) based on an image picture of the at least one input source. Specifically, as shown in fig. 2, a plurality of thumbnail images corresponding to a plurality of input sources are displayed in the OSD menu, each thumbnail image is, for example, a last frame image of a corresponding video source captured by the LED display controller, and an image captured after a preset time interval passes is overlaid on the original thumbnail image, meanwhile, all image images captured by the LED display controller are stored in the internal storage area, and a user, for example, clicking any one of the thumbnail images, may display all image frames captured by the video source corresponding to the thumbnail image. Therefore, the user switches the input source in a screen menu type adjusting mode, the image pictures of the input source received by the high-definition multimedia interface and the wireless module are displayed on the interactive interface after the input source is switched, and the switching and management of the HDMI input source and the wireless input source are realized through one window. Of course, in other embodiments of the present application, the screen frame display of the wired input source and the unlimited input source may be realized through another unified menu operation interface besides the OSD menu, and the present application is not limited thereto.
To sum up, in the video source switching method disclosed in the embodiment of the present application, by receiving the image frames of the input sources sent by the LED display controller, and generating corresponding thumbnail images according to the image frames, when the user switches the communication channel by operation, the target thumbnail image is selected, and the user can clearly know the input source image corresponding to each input source on the interactive interface, and can select the input source image according to the image frame when the input source needs to be switched, thereby avoiding the problems of blind selection and switching the input sources one by one; the user switches the input source through a screen menu type adjusting mode, and after the input source is switched, the image pictures of the input source received by the high-definition multimedia interface and the wireless module are displayed on the interactive interface, and the switching and management of the HDMI input source and the wireless input source are realized through one window.
[ second embodiment ]
As shown in fig. 3, a second embodiment of the present application provides a video source switching device. The video source switching device 20 includes, for example: an image screen receiving module 201, a thumbnail screen generating module 203, and an image screen output module 205.
The image picture receiving module 201 is configured to receive an image picture of at least one input source sent by at least one terminal device. The thumbnail picture generation module 203 is configured to generate at least one thumbnail picture of the at least one input source correspondingly according to the image picture of the at least one input source. The image screen output module 205 is configured to select a target thumbnail screen in the at least one thumbnail screen in response to an operation of a user, generate a corresponding target switching instruction, and output and display an image screen of an input source corresponding to the target thumbnail screen in the at least one thumbnail screen selected by the user operation according to the target switching instruction.
In one embodiment, as shown in fig. 4, the video source switching device 20 further includes, for example: an information receiving module 207, configured to receive information of the at least one input source, where the information includes input source interface type information and terminal device information; and displaying the input source interface type information and the terminal equipment information of the at least one input source in the thumbnail picture corresponding to the at least one input source.
In an embodiment, the channel establishing module 201 is specifically configured to: connecting the terminal through a high-definition multimedia interface to establish a communication channel with the terminal; and providing an AP hot spot by a wireless module, and connecting the terminal through the AP hot spot to establish a communication channel with the terminal.
In one embodiment, the image frame of the at least one input source includes a plurality of frame frames obtained by periodically capturing image data of the at least one input source.
In one embodiment, the thumbnail picture generation module 203 is specifically configured to: and correspondingly generating a thumbnail picture of the at least one input source according to the image picture of the at least one input source in a screen menu type adjusting mode.
The video source switching method implemented by the video source switching device 20 disclosed in this embodiment is as described in the first embodiment, and therefore, will not be described in detail herein. Optionally, each module and the other operations or functions in the second embodiment are respectively for implementing the method described in the first embodiment, and the beneficial effects of this embodiment are the same as those of the first embodiment, and for brevity, are not described herein again.
[ third embodiment ]
As shown in fig. 5, a third embodiment of the present application provides an LED display screen control system. The LED display screen control system 30 includes, for example: an LED display controller 31 and an LED display 32. The LED display controller 31 is connected to the LED display 32.
The LED display screen controller 31 is used to implement the video source switching method according to the first embodiment. For a specific video source switching method, reference may be made to the method described in the first embodiment, which is not described herein for brevity, and the beneficial effects of the LED display screen control system 30 provided in this embodiment are the same as those of the video source switching method provided in the first embodiment.
[ fourth example ] A
As shown in fig. 6, a video source switching system is provided in the fourth embodiment of the present application. The video source switching system 40 includes, for example: a memory 42 and one or more processors 41 coupled to the memory 42. The memory 42 stores a computer program that the processor 41 executes to implement the video source switching method as described in the first embodiment. For a specific video source switching method, reference may be made to the method described in the first embodiment, which is not described herein for brevity, and the beneficial effect of the video source switching system 40 provided in this embodiment is the same as that of the video source switching method provided in the first embodiment.
[ fifth embodiment ]
Fig. 7 is a computer-readable storage medium according to a fourth embodiment of the present application. As shown in fig. 7, the computer-readable storage medium 50 is a non-volatile memory and stores computer-readable instructions which, when executed by one or more processors, for example, cause the one or more processors to execute the video source switching method described in the foregoing first embodiment. For a specific video source switching method, reference may be made to the method described in the first embodiment, which is not described herein for brevity, and the beneficial effects of the computer-readable storage medium 70 provided in this embodiment are the same as those of the video source switching method provided in the first embodiment.
In addition, it should be understood that the foregoing embodiments are merely exemplary illustrations of the present application, and technical solutions of the embodiments can be arbitrarily combined and used in combination without conflict, contradiction, or conflict with the purpose of the present application.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and/or method may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units/modules is only one logical division, and there may be other divisions in actual implementation, for example, multiple units or modules may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units/modules described as separate parts may or may not be physically separate, and parts displayed as units/modules may or may not be physical units, may be located in one place, or may be distributed on multiple network units. Some or all of the units/modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.
In addition, functional units/modules in the embodiments of the present application may be integrated into one processing unit/module, or each unit/module may exist alone physically, or two or more units/modules may be integrated into one unit/module. The integrated units/modules may be implemented in the form of hardware, or may be implemented in the form of hardware plus software functional units/modules.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.
Claims (10)
1. An input source switching method, comprising:
receiving an image picture of at least one input source transmitted by at least one terminal device;
correspondingly generating at least one thumbnail picture of the at least one input source according to the image picture of the at least one input source;
responding to a target thumbnail picture in the at least one thumbnail picture selected by user operation, generating a corresponding target switching instruction, and outputting and displaying an image picture of an input source corresponding to the target thumbnail picture in the at least one thumbnail picture selected by user operation according to the target switching instruction.
2. The input source switching method according to claim 1, wherein the generating at least one thumbnail picture of the at least one input source according to the image picture of the at least one input source comprises:
and correspondingly displaying the at least one thumbnail picture of the at least one input source in a screen menu type adjusting mode according to the image picture of the at least one input source.
3. The input source switching method according to claim 1, wherein the image frame of the at least one input source includes a plurality of frame frames obtained by periodically capturing image data of the at least one input source.
4. The input source switching method according to claim 3, further comprising, before the selecting a target thumbnail screen among the at least one thumbnail screen in response to a user operation:
receiving information for transmitting the at least one input source, wherein the information comprises input source interface type information and terminal equipment information;
and displaying the input source interface type information and the terminal equipment information of the at least one input source in the thumbnail picture corresponding to the at least one input source.
5. The input source switching method according to claim 4, wherein the at least one input source includes a wired input source and a wireless input source, and the input source interface type information respectively corresponds to a wired type interface and a wireless type interface.
6. An input source switching apparatus, comprising:
the image picture receiving module is used for receiving the image picture of at least one input source sent by at least one terminal device;
the thumbnail picture generation module is used for correspondingly generating at least one thumbnail picture of the at least one input source according to the image picture of the at least one input source;
and the image screen output module is used for responding to the operation of a user to select a target thumbnail screen in the at least one thumbnail screen, generating a corresponding target switching instruction, and outputting and displaying the image screen of the input source corresponding to the target thumbnail screen in the at least one thumbnail screen selected by the user operation according to the target switching instruction.
7. The input source switching apparatus according to claim 6, further comprising:
the information receiving module is used for receiving information of the at least one input source, wherein the information comprises input source interface type information and terminal equipment information; and displaying the input source interface type information and the terminal equipment information of the at least one input source in the thumbnail picture corresponding to the at least one input source.
8. The input-source switching apparatus according to claim 6, wherein the image frame of the at least one input source includes a plurality of frame frames obtained by periodically capturing image data of the at least one input source.
9. The input source switching apparatus according to claim 6, wherein the thumbnail screen generation module is specifically configured to: and correspondingly generating a thumbnail picture of the at least one input source according to the image picture of the at least one input source in a screen menu type adjusting mode.
10. An LED display screen control system, comprising:
an LED display screen controller;
the LED display screen is connected with the LED display screen controller;
wherein the LED display screen controller is used for executing the video source switching method according to any one of claims 1 to 5.
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| CN115442574A (en) * | 2022-07-12 | 2022-12-06 | 北京罗克维尔斯科技有限公司 | Screen-projecting selection controller, control system, control method and vehicle |
| CN116980701A (en) * | 2023-09-21 | 2023-10-31 | 广东保伦电子股份有限公司 | Wireless switching control method, device and system based on two-dimensional secret code |
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| CN116980701B (en) * | 2023-09-21 | 2024-02-20 | 广东保伦电子股份有限公司 | Wireless switching control method, device and system based on two-dimensional secret code |
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