LED movie screen playing control system

Abstract

The invention discloses an LED movie screen playing control system, which comprises a mode selection control, a data receiving module and an image processing unit, and is characterized in that the mode selection control is used for sending different image analysis and configuration instructions according to different requirements, and different image resolution ratios are mapped by different image analysis and configuration instructions; the data receiving module is used for receiving a digital film data packet; the image processing unit is respectively in electric signal connection with a mode selection control and the data receiving module, and is used for carrying out resolution analysis processing on a video image signal input by the data receiving module according to an image analysis and configuration instruction sent by the mode selection control; and generating a video signal matched with the image resolution mapped by the current image analysis and configuration instruction.

Description

Technical Field

[0001] The present application relates to an LED movie screen, and in particular to an LED movie screen broadcast control system with scalability. Background Art

[0002] From projection to LED movie screens, from low brightness to high brightness, from low contrast to high contrast, from viewing movies in dark spaces to showing them with lights on, LED movie screens, with the label of "movie technology innovation", have brought changes to the film industry and consumption patterns. Both the leading screen companies and cinemas, as well as the partners in the industry ecosystem, are eager to try and set sail for a new blue ocean.

[0003] For a long time, the movie screen market has been dominated by projection technology, and the focus of technical competition in this market has fallen on the brightness of the projector. The core manifestation of the projector brightness level in the screen effect is how large the picture can be projected while meeting the image quality. Therefore, movie screens have a supply structure of different specifications such as 7 meters, 10 meters, and 20 meters.

[0004] At present, in order to meet the needs of different cinemas, LED movie screen systems are spliced ​​by small-sized LED unit panels to achieve screens of different specifications such as 7 meters, 10 meters, and 20 meters. Each specification of LED movie screen is fixed with its own broadcast control system for operation. However, based on commercial needs such as cinema operations, it is usually necessary to expand or reduce the size of the theater screen to cope with the changing market. At this time, it is necessary to customize the LED movie screen of a new size and simultaneously develop a broadcast control system that is compatible with the size.

[0005] For major cinema operators, re-customizing the LED movie screen system of a specific size will obviously cost more and be more unfavorable to the promotion of LED movie screens in the cinema equipment market.

[0006] Therefore, in view of the actual demand that there are various sizes of theaters and corresponding requirements for the size of LED screens, the applicant has proposed a high-efficiency and low-cost solution. Summary of the invention

[0007] In order to solve the above problems, the present application proposes a scalable LED movie screen broadcast control system.

[0008] A LED movie screen broadcast control system comprises a mode selection control, a data receiving module and an image processing unit, wherein: the mode selection control is used to issue different image analysis and configuration instructions according to different requirements, and different image analysis and configuration instructions map different image resolutions and image processing routing modes; the data receiving module is used to receive digital movie data packets; the image processing unit is respectively connected to the mode selection control and the data receiving module by electrical signals, and is used to perform resolution analysis and allocation processing on the video image signal input through the data receiving module according to the image analysis and configuration instructions issued by the mode selection control, so as to generate a video signal matching the image resolution mapped by the current image analysis and configuration instructions.

[0009] Optionally, the LED movie screen broadcast control system also includes an LED display screen for displaying the video signal, and the mode selection control issues image analysis and configuration instructions based on the physical intrinsic resolution of the LED display screen, so that the video signal generated by the image processing unit is adapted to the physical intrinsic resolution of the LED display screen.

[0010] Optionally, the mode selection control issues image parsing and configuration instructions corresponding to the physical intrinsic resolution of the LED display screen based on automatic identification of the physical intrinsic resolution of the LED display screen.

[0011] Optionally, the mode selection control issues image parsing and configuration instructions corresponding to the physical intrinsic resolution of the LED display screen based on manual control of the user.

[0012] Optionally, the image processing unit includes an LED video processor module, and the image processing unit performs resolution analysis processing on the video image signal input via the data receiving module through the LED video processing module to generate a video signal that matches the image resolution mapped by the current image analysis and configuration instructions.

[0013] Optionally, the LED movie screen playback control system also includes an LED controller electrically connected to the image processing unit, wherein the LED controller is used to receive a video signal output by the image processing unit and convert the video signal into a driving signal required by the LED display screen to drive an external LED display screen for movie playback.

[0014] Optionally, the LED controller has a plurality of data output terminals, and the plurality of data output terminals are used to correspond to respective external LED display screens, so as to output the driving signals converted and output by the LED controller to the plurality of external LED display screens respectively.

[0015] Optionally, the LED movie screen playback control system also includes multiple LED controllers electrically connected to the image processing unit, and each LED controller is electrically connected to the image processing unit, so as to independently receive the video signal output by the image processing unit and convert the video signal into a driving signal required by an external LED display screen, so as to independently drive the corresponding external LED display screen for movie playback.

[0016] Optionally, the LED movie screen broadcast control system includes a plurality of the data receiving modules, each of which is used to correspond to a different external LED display screen, so as to receive different digital movie data packets and output them to the image processing unit, so that the image processing unit can transmit them to the different external LED display screens after processing.

[0017] Optionally, the LED movie screen broadcast control system includes a plurality of mode selection controls corresponding one-to-one to the plurality of data receiving modules, so that the mode selection controls send corresponding image analysis and configuration instruction controls to the image processing unit.

[0018] Optionally, the LED movie screen broadcast control system also includes a tampering protection unit, which includes a plurality of independent tampering signal input interfaces, each of which is used to establish an electrical signal connection with an external LED display screen, and is used to input a tampering warning signal when data tampering or leakage occurs on the corresponding external LED display screen.

[0019] Optionally, the tamper warning signal type of the tamper protection unit includes binary or CMOS level data.

[0020] Optionally, the tamper protection unit generates and outputs a comprehensive detection result based on the received multiple tamper signal inputs according to control logic or selection signals.

[0021] Optionally, each of the multiple independent tampering signal input interfaces has a unique identification mark. When data tampering or leakage occurs on the LED display screen connected to each tampering signal input interface, the tampering protection unit will be triggered and send a tampering warning signal with an identification mark to the LED movie screen broadcast control system.

[0022] Optionally, each of the tampering signal input interfaces further includes multiple sub-interfaces, each sub-interface corresponding to each LED unit board of the LED display screen connected to the tampering signal input interface to which it belongs, or a display area composed of multiple LED unit boards, so that when data tampering or leakage occurs on an LED display screen connected to a certain tampering signal input interface, the specific local area of ​​the external LED display screen can be accurately located.

[0023] Compared with the prior art, the above-mentioned LED movie screen broadcast control system provided in the present application can issue image analysis and configuration instructions mapping specific image resolutions through the mode selection control according to the needs of different theaters, so as to carry out targeted control of the image processing unit in the image analysis process of the digital movie data packet, thereby achieving the purpose of using a set of broadcast control system to adapt to LED movie screens of various sizes.

[0024] Furthermore, the above-mentioned LED movie screen broadcast control system provided by the present application has at least the following advantages in different application scenarios: on the one hand, it not only provides a method that can issue image analysis and configuration instructions mapping specific image resolutions through the mode selection control according to different theater requirements, so as to carry out targeted control of the image processing unit in the image analysis process of the digital movie data packet, thereby achieving the purpose of using a set of broadcast control system to adapt to LED movie screens of various sizes; on the other hand, when using the above-mentioned LED movie screen broadcast control system provided by the present application, it allows theater operators to freely transform the theater according to actual operational needs, through By disassembling and assembling large-size LED screens, the number of LED screens can be increased from one to many. It is also possible to achieve the effect of changing from receiving a single DCP data and playing it on one LED screen to being able to synchronously or asynchronously play the received single DCP data on different small-size LED screens. Furthermore, when the system has multiple data receiving modules, it can allow simultaneous reception of multiple channels of DCP data and play different content on multiple LED screens, so that without increasing hardware costs, a large-size LED screen theater can be directly transformed into an immersive theater composed of multiple small-size LED screens, greatly increasing the operating space of theater operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0026] Figure 1It is a schematic diagram of the LED movie screen broadcast control system provided in the implementation mode of the present application.

[0027] Figure 2 yes Figure 1 A schematic diagram of a usage scenario of the LED movie screen broadcast control system shown.

[0028] Figure 3 yes Figure 1 Another usage scenario schematic diagram of the LED movie screen broadcast control system is shown.

[0029] Figure 4 yes Figure 1 A schematic diagram of another usage scenario of the LED movie screen broadcast control system is shown.

[0030] Figure 5 It is a schematic diagram of tamper protection of the LED movie screen broadcast control system provided in the implementation mode of the present application. DETAILED DESCRIPTION

[0031] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0033] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0034] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0035] The advantage of large LED screens is that they can be spliced ​​in unlimited sizes to form LED movie screens of different sizes. From a technical point of view, for LED screens, 7-meter, 10-meter, and 20-meter screens are almost a matter of "expanding the scale of splicing." As for the broadcast control system that goes with the LED screen, a set of LED movie screen broadcast control system can be used to match the complete LED movie screen size, from a small 7-meter hall to a giant screen of more than 20 meters. Therefore, based on the above ideas, the applicant in this case proposed the following solution.

[0036] See also Figure 1 The LED movie screen broadcast control system 100 provided in the embodiment of the present application includes a mode selection control 10, a data receiving module 20, an image processing unit 30 and an LED controller 40.

[0037] The mode selection control 10 is used to issue different image analysis and configuration instructions according to different requirements, and different image analysis and configuration instructions map to different image resolutions and image processing routing modes.

[0038] The data receiving module 20 is used to receive data necessary for film screening, such as digital cinema data package (DCP), decryption key (KDM), etc., through a wired or wireless network channel, an optical disc, or a mobile storage device, etc., which are commonly used in cinema systems.

[0039] The image processing unit 30 is electrically connected to the mode selection control 10 and the data receiving module 20, respectively, and is used to unpack, decapsulate, decrypt content and decompress images of digital movie data packets received by the data receiving module 10. At the same time, according to the image parsing and configuration instructions issued by the mode selection control 10, the video image signal input through the data receiving module 20 is subjected to resolution parsing processing to generate a video signal matching the image resolution mapped by the current image parsing and configuration instructions, and at the same time, the generated video signal is routed to the corresponding video output channel.

[0040] In this embodiment, the image processing unit 30 includes an LED video processor module. When the image processing unit 30 is in normal working state, in order to cope with LED screens of different specifications, the processing of video data by the LED video processor module mainly includes the following aspects: 1. Resolution specification conversion: Generally speaking, the signal resolution provided by the image signal source has fixed specifications (such as 2K / 4K video data stream). The modular splicing display based on the LED display makes its resolution almost any value. Therefore, the video processor can convert various signal resolutions into the actual physical display resolution of the LED display when it is working.

[0041] 2. Color space conversion: The color gamut of LED display is very wide, while the color space of most image signals is relatively small (such as NTSC). In order for the LED display to have excellent image display effects, color space conversion must be performed.

[0042] 3. Improved bit depth: With the improvement of small-pitch LED production technology, the grayscale levels of LED displays with different hardware configurations are also different (such as 10 bits, 12 bits). When the grayscale level of the input signal source is not suitable (such as 8 bits), the application of 10-bit or even 12-bit processing technology in video processors is an inevitable trend.

[0043] 4. Scaling: During the resolution specification conversion process, the image needs to be scaled. Whether the resolution is increased or decreased, the complete image can be displayed on the screen.

[0044] It should be noted that the data processing capabilities of the above-mentioned LED video processors are all well-known technologies in the field of LED display screens. The LED movie screen broadcast control system 100 provided in this application is based on the data processing capabilities of the LED video processor in the image processing link to achieve the purpose of a set of broadcast control system that can adapt to LED movie screens of various sizes.

[0045] The LED controller 40 is electrically connected to the image processing unit 30 to receive the video signal outputted therefrom and convert the video signal into a driving signal required by the LED display screen, such as serial display data and scanning control timing, so as to finally drive the LED display screen to play the video.

[0046] It should be noted that in the present application, the LED controller 40 can belong to the LED movie screen broadcast control system 100, or it can belong to the LED movie screen adapted to the LED movie screen broadcast control system 100. When the LED controller 40 belongs to the LED movie screen adapted to the LED movie screen broadcast control system 100, the LED movie screen broadcast control system 100 only needs to set a data output channel connected to the LED controller 40.

[0047] In this embodiment, based on the logical control between the mode selection control 10 and the image processing unit 30, the LED movie screen broadcast control system can issue image analysis and configuration instructions mapping specific image resolutions through the mode selection control 10 according to different theater requirements, so as to carry out targeted control of the image processing unit 30 in the image analysis process of the digital movie data packet, thereby achieving the purpose of using one broadcast control system to adapt to LED movie screens of various sizes.

[0048] In this embodiment, the mode selection control 10 obtains different requirements by automatically identifying the physical intrinsic resolution of the external LED display screen to issue image analysis and configuration instructions corresponding to the physical intrinsic resolution of the LED display screen, or by issuing image analysis and configuration instructions corresponding to a specific image resolution based on manual control of the user.

[0049] The mode selection control 10 can be implemented based on automatic identification of the physical intrinsic resolution of an external LED display screen by any known technology in the art. For example, one implementation method is to detect and read the standard connection data stored in the controller of each LED unit board. Therefore, the standard connection data includes the number of rows and columns of LED lamp beads of each LED unit board. Therefore, by detecting and receiving each standard connection data, the physical intrinsic resolution data of the LED display screen composed of each LED unit board can be generated.

[0050] Based on the working principle of the above-mentioned LED movie screen broadcast control system 100, the present application also provides a description of the working scenarios of the LED movie screen broadcast control system 100 when used with different LED display screens to further highlight the superiority of the present application.

[0051] See also Figure 1 When the LED movie screen broadcast control system 100 is adapted to a 20-meter LED screen with a resolution of 4K, the user can select the 4K LED screen projection mode through the mode selection control 10, thereby sending image analysis and configuration instructions to the image processing unit 30, which includes the following two situations: When the input DCP has a 4K resolution, the image data is decoded by the image processing unit 30 and output to the LED controller 40. After that, the LED controller 40 converts the video signal into the serial display data and scanning control timing required by the 4K 20-meter LED large screen, so as to finally drive the LED display screen to play the movie; When the input DCP has a resolution of 2K or less, the image data is decoded by the image processing unit 30 and the 2K resolution is upgraded to 4K resolution and then output to the LED controller 40. Afterwards, the LED controller 40 converts the video signal into the serial display data and scanning control timing required by the 4K 20-meter LED large screen, so as to finally drive the LED display screen for movie playback.

[0052] See also Figure 2 , which shows that when based on actual needs, it is necessary to Figure 1The 20-meter LED screen with a resolution of 4K is re-spliced. For example, when the 20-meter LED screen with a resolution of 4K is re-spliced ​​to form a 10-meter LED screen, the LED movie screen broadcast control system 100 provided in the present application can still be well adapted to the 10-meter LED screen.

[0053] When a 20-meter 4K LED screen is split and spliced ​​to form a 10-meter LED screen, since the pixel pitch of each LED module remains unchanged, a 20-meter 4K LED screen can be split and spliced ​​into four 10-meter LED screens with a resolution of 2K. At this time, when the LED movie screen broadcast control system 100 is adapted to one of the 2K 10-meter LED screens, the signal processing process is roughly as follows: The user can select the 2K LED screen projection mode through the mode selection control 10, thereby sending image analysis and configuration instructions to the image processing unit 30; When the input DCP has a resolution of 4K or 2K, the image data is decoded by the image processing unit 30 and output to the LED controller 40. After that, the LED controller 40 converts the video signal into the serial display data and scanning control timing required by the 2K 10-meter LED large screen, so as to finally drive the LED display screen to play the movie; When the input DCP has a resolution less than 2K, the image data is decoded by the image processing unit 30 and the resolution is adjusted to 2K before being output to the LED controller 40. Thereafter, the LED controller 40 converts the video signal into the serial display data and scanning control timing required by the 2K 10-meter LED large screen, so as to finally drive the LED display screen for movie playback.

[0054] In the above process, Figure 1 The LED movie screen broadcast control system 100 adapted to the 20-meter LED large screen with a resolution of 4K will not undergo any technical changes and can perfectly adapt to the modified 2K 10-meter LED large screen.

[0055] See also Figure 3 , still Figure 1 The LED movie screen broadcast control system 100 shown is based on the adaptation of a 20-meter LED large screen with a resolution of 4K. Figure 2When a 4K 20-meter LED large-screen theater is transformed into four 2K 10-meter LED large-screen theaters, or when a theater with a 4K 20-meter LED large screen needs to be transformed into an immersive theater with four 2K 10-meter LED large screens, it is only necessary to split the 4K 20-meter LED large screen and splice it into four 2K 10-meter LED large screens, and then connect the four 2K 10-meter LED large screens to the LED movie screen broadcast control system 100. At this time, the signal processing process of the LED movie screen broadcast control system 100 adapting to the four 2K 10-meter LED large screens at the same time is roughly as follows: The user can select the 2K LED screen projection mode through the mode selection control 10, thereby sending the image analysis and configuration instructions to the image processing unit 30; when the input DCP is 4K or 2K resolution, the image data is decoded by the image processing unit 30 and output to the LED controller 40, and then the LED controller 40 converts the video signal into the serial display data and scanning control timing required by the 2K 10-meter LED large screen, and at the same time copies the formed control data into 4 copies, which are sent to the 4 2K 10-meter LED large screens respectively, so as to finally drive the 4 2K 10-meter LED large screens to play the movie at the same time. At this time, the video content played by the 4 2K 10-meter LED large screens is the same; When the input DCP has a resolution less than 2K, the image data is decoded by the image processing unit 30 and the resolution is adjusted to 2K before being output to the LED controller 40. After that, the LED controller 40 converts the video signal into the serial display data and scanning control timing required by the 2K 10-meter LED large screen, and at the same time copies the formed control data into 4 copies, which are sent to the 4 2K 10-meter LED large screens respectively, so as to finally drive the 4 2K 10-meter LED large screens to play the movie at the same time. At this time, the video content played by the 4 2K 10-meter LED large screens is the same.

[0056] In the above process, Figure 1 The LED movie screen broadcast control system 100 adapted to the 20-meter LED screen with a resolution of 4K will not undergo any technical changes and can perfectly adapt to the modified 4 2K 10-meter LED screens.

[0057] It should be noted that, in the above process, the control data output by the LED controller 40 is copied, and the specific implementation method may be to ensure that the LED controller 40 has a plurality of signal output ports at the hardware level.

[0058] That is to say, optionally, in the present application, the LED controller 40 of the LED movie screen broadcast control system 100 may have multiple signal output ports.

[0059] Furthermore, the LED movie screen playback control system 100 may also include a plurality of the LED controllers 40, each of which may be electrically connected to the image processing unit 30, so as to independently receive the video signal output by the image processing unit 30 and convert the video signal into the serial display data and scanning control timing required by the LED display screen, so as to finally independently drive the LED display screens controlled by each of them to play the movie.

[0060] See also Figure 4 ,exist Figure 3 In the displayed usage environment, the video content played by the four 2K 10-meter LED screens is the same, which is bound to restrict the operation of the renovated cinema. Therefore, the LED movie screen broadcast control system 100 provided in this application can also include multiple data receiving modules 20, each data receiving module 20 is used to receive different digital movie data packets (DCP), decryption keys (KDM) and other film projection data. In this way, different data receiving modules 20 correspond to different LED screens, so that different effects of video content played by the four 2K 10-meter LED screens can be achieved.

[0061] Of course, in Figure 4 In the usage scenario shown, the mode selection control 10 can also be individually adapted for different data receiving modules 20, for example, Figure 4 In the usage scenario shown, the LED movie screen broadcast control system 100 has four data receiving modules 20. At this time, four mode selection controls 10 can be set to perform one-to-one corresponding control with the four data receiving modules 20.

[0062] Please also see Figure 1 and Figure 5 Based on the need for tampering protection of digital movie copyrights, the above-mentioned LED movie screen broadcast control system provided by the present application also includes a tampering protection unit, which mainly includes a tampering signal multiplexer unit, and the tampering signal multiplexer unit includes multiple independent tampering signal input interfaces, each of which is used to connect an external LED display screen with an electrical signal, and is used to detect whether the corresponding external LED display screen has data tampering or leakage problems. When any external LED display screen has data tampering or leakage problems, the tampering protection unit will be triggered and send a tampering warning signal to the LED movie screen broadcast control system, so that the LED movie screen broadcast control system can timely block the transmission of digital signals according to the tampering warning signal, thereby improving the flexibility of the system, shortening the tampering signal path to achieve faster tampering detection, and simplifying the maintenance process.

[0063] The tampering warning signal type of the tampering signal multiplexing unit may include binary (such as TTL) or CMOS level data, etc. The number of inputs can be configured as needed and has a shorter propagation delay to ensure the real-time nature of tampering detection.

[0064] Optionally, based on the multiple tampering signal input interfaces, the tampering signal multiplexing unit can generate and output a comprehensive detection result from the multiple input signals based on the received multiple tampering signal inputs according to control logic or selection signals.

[0065] Optionally, each of the multiple independent tampering signal input interfaces of the tampering signal multiplexing unit has a unique identification mark. When data tampering or leakage occurs on the LED display screen connected to each tampering signal input interface, the tampering protection unit will be triggered and send a tampering warning signal with an identification mark to the LED movie screen broadcast control system, so that when maintaining or replacing the LED display screen, there is no need to interrupt the tampering detection function of the entire system.

[0066] Optionally, given that an LED display screen can be composed of multiple LED unit boards, in order to more accurately determine the signal leakage point, each tampering signal input interface of the tampering signal multiplexing unit can further include multiple sub-interfaces, each sub-interface corresponding to each LED unit board of the LED display screen connected to the tampering signal input interface to which it belongs, or a display area composed of multiple LED unit boards. Therefore, when data tampering or leakage occurs in an LED display screen connected to a certain tampering signal input interface, the specific local area of ​​the external LED display screen can be accurately located, thereby eliminating the need to maintain or replace the entire LED display screen, further reducing costs.

[0067] based on Figures 1 to 4The changes in usage scenarios shown can fully reflect the superiority of the above-mentioned LED movie screen broadcast control system provided by the present application: on the one hand, it not only provides a method that can issue image analysis and configuration instructions mapping specific image resolutions through the mode selection control according to different theater requirements, so as to carry out targeted control of the image processing unit in the image analysis process of the digital movie data packet, thereby achieving the purpose of using a set of broadcast control system to adapt to LED movie screens of various sizes; on the other hand, when using the above-mentioned LED movie screen broadcast control system provided by the present application, it allows theater operators to freely transform the theater according to actual operational needs, through The disassembly and assembly of large-size LED screens can achieve the effect of increasing the number of LED screens from one to many, and can also achieve the effect of receiving a single DCP data and playing it on one LED screen to being able to synchronously or asynchronously play the received single DCP data on different small-size LED screens. Furthermore, when the system has multiple data receiving modules, it can allow simultaneous reception of multiple channels of DCP data and play different content on multiple LED screens, so that without increasing hardware costs, a large-size LED screen theater can be directly transformed into an immersive theater composed of multiple small-size LED screens, greatly increasing the operating space of theater operators.

[0068] The above descriptions are merely embodiments of the present application and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. An LED movie screen broadcast control system, comprising a mode selection control, a data receiving module and an image processing unit, wherein: The mode selection control is used to issue different image analysis and configuration instructions according to different requirements, and different image analysis and configuration instructions map different image resolutions and image processing routing modes; The data receiving module is used to receive digital movie data packets; The image processing unit is electrically connected to the mode selection control and the data receiving module respectively, and is used to perform resolution analysis and allocation processing on the video image signal input through the data receiving module according to the image analysis and configuration instructions issued by the mode selection control, so as to generate a video signal that matches the image resolution mapped by the current image analysis and configuration instructions.

2. The LED movie screen broadcast control system according to claim 1, characterized in that: The LED movie screen broadcast control system also includes an LED display screen for displaying the video signal. The mode selection control issues image analysis and configuration instructions based on the physical intrinsic resolution of the LED display screen so that the video signal generated by the image processing unit is adapted to the physical intrinsic resolution of the LED display screen.

3. The LED movie screen broadcast control system according to claim 2, characterized in that: The mode selection control issues an image analysis and configuration instruction corresponding to the physical intrinsic resolution of the LED display screen based on automatically identifying the physical intrinsic resolution of the LED display screen.

4. The LED movie screen broadcast control system according to claim 2, characterized in that: The mode selection control issues image parsing and configuration instructions corresponding to the physical intrinsic resolution of the LED display screen based on the manual control of the user.

5. The LED movie screen broadcast control system according to claim 1, characterized in that: The image processing unit includes an LED video processor module, and the image processing unit performs resolution analysis processing on the video image signal input via the data receiving module through the LED video processing module to generate a video signal that matches the image resolution mapped by the current image analysis and configuration instructions.

6. The LED movie screen broadcast control system according to claim 5, characterized in that: The LED movie screen playback control system also includes an LED controller electrically connected to the image processing unit. The LED controller is used to receive the video signal output by the image processing unit and convert the video signal into a driving signal required by the LED display screen to drive an external LED display screen for movie playback.

7. The LED movie screen broadcast control system according to claim 6, characterized in that: The LED controller has a plurality of data output terminals, and the plurality of data output terminals are used to correspond to respective external LED display screens, so as to output the driving signals converted and output by the LED controller to the plurality of external LED display screens respectively.

8. The LED movie screen broadcast control system according to claim 5, characterized in that: The LED movie screen playback control system also includes a plurality of LED controllers electrically connected to the image processing unit. Each LED controller is electrically connected to the image processing unit to independently receive the video signal output by the image processing unit and convert the video signal into a driving signal required by an external LED display screen, so as to independently drive the corresponding external LED display screen for movie playback.

9. The LED movie screen broadcast control system according to claim 1, characterized in that: The LED movie screen broadcast control system includes a plurality of data receiving modules, each of which is used to correspond to a different external LED display screen to receive different digital movie data packets and output them to the image processing unit, so that the image processing unit can transmit them to the different external LED display screens after processing.

10. The LED movie screen broadcast control system according to claim 9, characterized in that: The LED movie screen broadcast control system includes a plurality of mode selection controls corresponding one-to-one to the plurality of data receiving modules, so that the mode selection controls send corresponding image analysis and configuration instruction controls to the image processing unit.

11. The LED movie screen broadcast control system according to claim 1, characterized in that: The LED movie screen broadcast control system also includes a tampering protection unit, which includes multiple independent tampering signal input interfaces, each of which is used to connect an external LED display screen with an electrical signal, and is used to input a tampering warning signal when data tampering or leakage occurs on the corresponding external LED display screen.

12. The LED movie screen broadcast control system according to claim 11, characterized in that: The tamper warning signal type of the tamper protection unit includes binary or CMOS level data.

13. The LED movie screen broadcast control system according to claim 11, characterized in that: The tamper protection unit generates and outputs a comprehensive detection result based on the received multiple tamper signal inputs according to the control logic or the selection signal.

14. The LED movie screen broadcast control system according to claim 11, characterized in that: The multiple independent tampering signal input interfaces each have a unique identification mark. When data tampering or leakage occurs on the LED display screen connected to each tampering signal input interface, the tampering protection unit will be triggered and send a tampering warning signal with an identification mark to the LED movie screen broadcast control system.

15. The LED movie screen broadcast control system according to claim 11, characterized in that: Each of the tampering signal input interfaces further includes multiple sub-interfaces, each sub-interface corresponds to each LED unit board of the LED display screen externally connected to the tampering signal input interface to which it belongs, or a display area composed of multiple LED unit boards. Therefore, when data tampering or leakage occurs on an LED display screen externally connected to a certain tampering signal input interface, the specific local area of ​​the external LED display screen can be accurately located.

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