CN116052587A - LED display screen control device, system and method - Google Patents

Abstract

The invention provides a control device, a system and a method for an LED display screen, wherein the control device comprises: the receiving module is used for receiving the video signal and sending the video signal to the processing module, wherein the video signal contains authorization information; the processing module is used for reading the authorization information in the video signal and calculating the authorization residual duration, if the authorization residual duration is enough, adding a descrambling instruction to the video signal and then forwarding the descrambling instruction to the display module, and if the authorization residual is used up, sending a black screen signal containing the descrambling instruction to the display module; and the display module is used for driving the display element to work according to the video signal or the black screen signal containing the descrambling instruction. The invention can better carry out authorization management on the LED display screen.

Description

Translated fromChinese

一种LED显示屏控制装置、系统及方法A LED display control device, system and method

技术领域technical field

本发明涉及信息技术领域，特别地，涉及一种LED显示屏控制装置、系统及方法。The present invention relates to the field of information technology, in particular, to an LED display screen control device, system and method.

背景技术Background technique

现有技术中，对于LED显示屏的授权使用时长管理(俗称防逾期管理)，一般使用控制系统自带的加密狗配合主机自带计时功能实现，当授权剩余用完时，控制系统则会停止LED显示屏的使用权限。通过实际测试发现，这种管理方法的稳定性不足，且可以通过更换主控制器和分控制卡使防逾期功能失效。因此亟待提出新的方式对LED显示屏进行有效管理。In the prior art, the management of the authorized use time of LED display (commonly known as anti-overdue management) is generally realized by using the dongle that comes with the control system and the timing function of the host. When the remaining authorization is used up, the control system will stop. Permission to use the LED display. Through the actual test, it is found that the stability of this management method is insufficient, and the anti-overdue function can be invalidated by replacing the main controller and the sub-control card. Therefore, it is urgent to propose a new way to effectively manage the LED display.

发明内容Contents of the invention

有鉴于此，本发明第一个目的是提供一种LED显示屏控制装置，能够较好地对LED显示屏进行授权管理。In view of this, the first object of the present invention is to provide a LED display screen control device, which can better manage the authorization of the LED display screen.

为了解决上述技术问题，本发明的技术方案是：In order to solve the problems of the technologies described above, the technical solution of the present invention is:

一种LED显示屏控制装置，包括：A LED display control device, comprising:

接收模块，用于接收视频信号并发送至处理模块，所述视频信号中包含授权信息；The receiving module is used to receive the video signal and send it to the processing module, and the video signal contains authorization information;

处理模块，用于读取视频信号中的授权信息并计算授权剩余时长，若授权剩余时长足够，则对视频信号添加解扰指令后转发至显示模块，若授权剩余用完，则向显示模块发送包含解扰指令的黑屏信号；The processing module is used to read the authorization information in the video signal and calculate the remaining duration of the authorization. If the remaining duration of the authorization is sufficient, add a descrambling instruction to the video signal and forward it to the display module. If the remaining authorization is used up, send it to the display module. black screen signal containing descrambling instructions;

以及显示模块，用于根据包含解扰指令的视频信号或黑屏信号驱动显示元件工作。And a display module, used to drive the display element to work according to the video signal or black screen signal containing the descrambling instruction.

优选地,所述显示模块包括若干串联的驱动IC和至少一个解扰IC，所述解扰IC串联于相邻两个驱动IC之间；所述包含解扰指令的视频信号或黑屏信号在所述驱动IC和解扰IC之间依次传递；所述解扰IC被配置为根据解扰指令对视频信号或黑屏信号进行解扰处理后再传递至后级的驱动IC。Preferably, the display module includes several series-connected driver ICs and at least one descrambling IC, and the descrambling IC is connected in series between two adjacent driving ICs; the video signal or black screen signal containing descrambling instructions The descrambling IC is configured to perform descrambling processing on the video signal or black screen signal according to the descrambling instruction and then transmit it to the next-stage driver IC.

优选地,所述处理模块包括MCU模块和FPGA模块，所述MCU用于读取视频信号中的授权信息并计算授权剩余时长，并根据授权剩余时长的情况向FPGA模块发送相应的控制信息；所述FPGA模块根据接收到的控制信息决定向显示模块发送包含解扰指令的视频信号或黑屏信号。Preferably, the processing module includes an MCU module and an FPGA module, the MCU is used to read the authorization information in the video signal and calculate the remaining duration of the authorization, and send corresponding control information to the FPGA module according to the remaining duration of the authorization; The FPGA module decides to send a video signal or a black screen signal containing a descrambling instruction to the display module according to the received control information.

优选地,所述处理模块、接收模块和显示模块之间采用通用型可插拔信号接口连接。Preferably, the processing module, the receiving module and the display module are connected by a universal pluggable signal interface.

本发明第二个目的是提供一种LED显示屏控制系统，能够较好地对LED显示屏进行授权管理。The second object of the present invention is to provide an LED display control system, which can better manage the authorization of the LED display.

为了解决上述技术问题，本发明的技术方案是：In order to solve the problems of the technologies described above, the technical solution of the present invention is:

一种LED显示屏控制系统，包括若干权利要求1-4任一所述的LED显示屏控制装置以及至少一个发送模块，若干LED显示屏控制装置内的接收模块依次串联；所述发送模块与若干接收模块中的首个连接以向其发送视频信号，所述首个接收模块还将接收到的视频信号转发至后级的接收模块。A LED display screen control system, comprising LED display screen control devices described in any one of claims 1-4 and at least one sending module, the receiving modules in several LED display screen control devices are serially connected in sequence; the sending module is connected with several LED display screen control devices The first one in the receiving module is connected to send the video signal thereto, and the first receiving module also forwards the received video signal to the receiving module of the subsequent stage.

本发明第三个目的是提供一种LED显示屏控制方法，能够较好地对LED显示屏进行授权管理。The third object of the present invention is to provide a method for controlling an LED display screen, which can better perform authorization management on the LED display screen.

为了解决上述技术问题，本发明的技术方案是：In order to solve the problems of the technologies described above, the technical solution of the present invention is:

一种LED显示屏控制方法，包括：A LED display control method, comprising:

接收模块接收视频信号并发送至处理模块，所述视频信号中包含授权信息；The receiving module receives the video signal and sends it to the processing module, and the video signal contains authorization information;

处理模块读取视频信号中的授权信息并计算授权剩余时长，若授权剩余时长足够，则对视频信号添加解扰指令后转发至显示模块，若授权剩余用完，则向显示模块发送包含解扰指令的黑屏信号；The processing module reads the authorization information in the video signal and calculates the remaining duration of the authorization. If the remaining duration of the authorization is sufficient, it adds a descrambling instruction to the video signal and forwards it to the display module. The black screen signal of the command;

显示模块根据包含解扰指令的视频信号或黑屏信号驱动显示元件工作。The display module drives the display element to work according to the video signal or the black screen signal containing the descrambling instruction.

优选地,所述显示模块根据包含解扰指令的视频信号或黑屏信号驱动显示元件工作，具体包括：Preferably, the display module drives the display elements to work according to the video signal or black screen signal containing the descrambling instruction, specifically including:

将至少一个解扰IC串联于若干串联的驱动IC中的相邻两个驱动IC之间；Connecting at least one descrambling IC in series between two adjacent drive ICs in several series drive ICs;

所述包含解扰指令的视频信号或黑屏信号在所述驱动IC和解扰IC之间依次传递；The video signal or black screen signal containing the descrambling instruction is sequentially transmitted between the driver IC and the descrambling IC;

所述解扰IC根据解扰指令对视频信号或黑屏信号进行解扰处理后再传递至后级的驱动IC。The descrambling IC performs descrambling processing on the video signal or the black screen signal according to the descrambling instruction, and then transmits it to the subsequent driver IC.

本发明技术效果主要体现在以下方面：Technical effect of the present invention is mainly reflected in the following aspects:

1、摒弃了传统技术中仅采用控制器计时方式进行授权管理的方式，转而采用MCU模块、FPGA模块与解扰IC配合实现显示屏的正常控制；1. Abandon the traditional technology of only using the controller timing method for authorization management, and instead use the MCU module, FPGA module and descrambling IC to realize the normal control of the display screen;

2、采用以上方式，整个系统被破解的难度大、成本高，从而能够较为有效地降低显示屏用户破解的行为。2. By adopting the above method, it is very difficult and costly to crack the entire system, so that the cracking behavior of display screen users can be effectively reduced.

附图说明Description of drawings

图1为实施例中LED显示屏控制系统的模块图；Fig. 1 is the block diagram of LED display screen control system in the embodiment;

图2为实施例中显示模块的模块图。Fig. 2 is a block diagram of the display module in the embodiment.

附图标记：10、发送模块；20、LED显示屏控制装置；21、接收模块；22、处理模块；23、显示模块。Reference signs: 10, sending module; 20, LED display control device; 21, receiving module; 22, processing module; 23, display module.

具体实施方式Detailed ways

以下结合附图，对本发明的具体实施方式作进一步详述，以使本发明技术方案更易于理解和掌握。The specific implementation manners of the present invention will be further described below in conjunction with the accompanying drawings, so as to make the technical solution of the present invention easier to understand and grasp.

参照图1，本实施例提供了一种LED显示屏控制系统，包括至少一个发送模块10以及若干LED显示屏控制装置20；LED显示屏控制装置20包括接收模块21、处理模块22以及显示模块23。Referring to Fig. 1, the present embodiment provides a LED display control system, including at least onesending module 10 and several LEDdisplay control devices 20; the LEDdisplay control device 20 includes areceiving module 21, aprocessing module 22 and adisplay module 23 .

接收模块21采用视频信号接收卡的构造形式，用于接收视频信号并发送至处理模块22，该视频信号中包含授权信息。不同LED显示屏控制装置20之间的接收模块21依次串联，即：发送模块10与若干接收模块21中的首个连接以向其发送视频信号，首个接收模块21还将接收到的视频信号转发至后级的接收模块21。The receivingmodule 21 is in the form of a video signal receiving card for receiving video signals and sending them to theprocessing module 22. The video signals include authorization information. Thereceiving modules 21 between different LED displayscreen control devices 20 are serially connected in series, that is, thesending module 10 is connected to the first one ofseveral receiving modules 21 to send a video signal to it, and thefirst receiving module 21 will also receive the received video signal It is forwarded to the receivingmodule 21 of the subsequent stage.

处理模块22采用hub卡的构造形式，用于读取视频信号中的授权信息并计算授权剩余时长，若授权剩余时长足够，则对视频信号添加解扰指令后转发至显示模块23，若授权剩余用完，则向显示模块23发送包含解扰指令的黑屏信号。具体地，处理模块22包括MCU模块和FPGA模块，MCU用于读取视频信号中的授权信息并计算授权剩余时长，并根据授权剩余时长的情况向FPGA模块发送相应的控制信息；FPGA模块根据接收到的控制信息决定向显示模块23发送包含解扰指令的视频信号或黑屏信号。Theprocessing module 22 adopts the structure of a hub card, which is used to read the authorization information in the video signal and calculate the remaining duration of the authorization. If the remaining duration of the authorization is sufficient, the video signal is forwarded to thedisplay module 23 after adding a descrambling instruction. When it is used up, a black screen signal containing a descrambling instruction is sent to thedisplay module 23 . Specifically, theprocessing module 22 includes an MCU module and an FPGA module, the MCU is used to read the authorization information in the video signal and calculate the remaining duration of the authorization, and send corresponding control information to the FPGA module according to the remaining duration of the authorization; The received control information determines to send a video signal or a black screen signal containing a descrambling instruction to thedisplay module 23 .

显示模块23用于根据包含解扰指令的视频信号或黑屏信号驱动显示元件工作；具体地，显示模块23包括若干串联的驱动IC和至少一个解扰IC，解扰IC串联于相邻两个驱动IC之间。包含解扰指令的视频信号或黑屏信号在驱动IC和解扰IC之间依次传递；解扰IC被配置为根据解扰指令对视频信号或黑屏信号进行解扰处理后再传递至后级的驱动IC。Thedisplay module 23 is used to drive the display elements to work according to the video signal or black screen signal containing the descrambling instruction; specifically, thedisplay module 23 includes several series-connected driving ICs and at least one descrambling IC, and the descrambling IC is connected in series to two adjacent driving ICs. between ICs. The video signal or black screen signal containing the descrambling instruction is sequentially transmitted between the driver IC and the descrambling IC; the descrambling IC is configured to descramble the video signal or black screen signal according to the descrambling instruction and then transmit it to the subsequent driver IC .

以上处理模块22、接收模块21和显示模块23之间采用通用型可插拔信号接口连接。Theprocessing module 22, thereceiving module 21 and thedisplay module 23 are connected by a universal pluggable signal interface.

实施例二、Embodiment two,

在实施例一的基础上，本实施例还提供一种LED显示屏控制方法，该方法包括：On the basis ofEmbodiment 1, this embodiment also provides a method for controlling an LED display screen, the method including:

S01、接收模块21接收视频信号并发送至处理模块22，视频信号中包含授权信息；S01, thereceiving module 21 receives the video signal and sends it to theprocessing module 22, and the video signal contains authorization information;

该视频信号由发送模块10发送给第一个接收模块21，第一个接收模块21再继续转发至另一接收模块21，如此逐级传递视频信号。The video signal is sent by thesending module 10 to thefirst receiving module 21, and thefirst receiving module 21 forwards it to anotherreceiving module 21, so that the video signal is transmitted step by step.

S02、处理模块22读取视频信号中的授权信息并计算授权剩余时长，具体地，MCU通过读取视频信号中的授权信息并计算授权剩余时长，并根据授权剩余时长的情况向FPGA模块发送相应的控制信息，即：若授权剩余时长足够，则对视频信号添加解扰指令后转发至显示模块23，若授权剩余用完，则向显示模块23发送包含解扰指令的黑屏信号。FPGA模块根据接收到的控制信息决定向显示模块23发送包含解扰指令的视频信号或黑屏信号。S02. Theprocessing module 22 reads the authorization information in the video signal and calculates the remaining duration of the authorization. Specifically, the MCU reads the authorization information in the video signal and calculates the remaining duration of the authorization, and sends a corresponding message to the FPGA module according to the remaining duration of the authorization. control information, that is: if the remaining time of the authorization is sufficient, add a descrambling instruction to the video signal and forward it to thedisplay module 23; if the remaining authorization is used up, send a black screen signal containing the descrambling instruction to thedisplay module 23. The FPGA module decides to send the video signal or the black screen signal containing the descrambling instruction to thedisplay module 23 according to the received control information.

S03、显示模块23根据包含解扰指令的视频信号或黑屏信号驱动显示元件工作；S03, thedisplay module 23 drives the display element to work according to the video signal or black screen signal containing the descrambling instruction;

具体地，包含解扰指令的视频信号或黑屏信号在驱动IC和解扰IC之间依次传递；解扰IC被配置为根据解扰指令对视频信号或黑屏信号进行解扰处理后再传递至后级的驱动IC。解扰IC内部的信号通道并非常规的RGB信号排列顺序，而是以打乱的顺序排列，因此，通常的(未加扰)RGB信号在通过解扰IC的传递后，若未经过解扰处理，传递至后级驱动IC时，信号呈乱序状态，使得后级的驱动IC对应的区域显示异常的内容。Specifically, the video signal or the black screen signal containing the descrambling instruction is sequentially transmitted between the driver IC and the descrambling IC; the descrambling IC is configured to descramble the video signal or the black screen signal according to the descrambling instruction and then transmit it to the subsequent stage driver IC. The signal channels inside the descrambling IC are not arranged in the order of conventional RGB signals, but in a random order. Therefore, after the normal (unscrambled) RGB signals are passed through the descrambling IC, if they are not descrambled , when it is transmitted to the subsequent driver IC, the signal is in a disordered state, so that the area corresponding to the latter driver IC displays abnormal content.

因此，若用户将hub卡跳过，用接收卡直接连接屏幕，因为显示模块23的特殊设计，图像是不能正常显示的。从而解决了现有方案(更换控制器和接收卡)防逾期功能失效的问题。Therefore, if the user skips the hub card and directly connects the screen with the receiving card, the image cannot be displayed normally because of the special design of thedisplay module 23 . Therefore, the problem of failure of the anti-overdue function in the existing solution (replacing the controller and the receiving card) is solved.

当然，以上只是本发明的典型实例，除此之外，本发明还可以有其它多种具体实施方式，凡采用等同替换或等效变换形成的技术方案，均落在本发明要求保护的范围之内。Of course, the above are only typical examples of the present invention. In addition, the present invention can also have other multiple specific implementation modes. All technical solutions formed by equivalent replacement or equivalent transformation all fall within the scope of protection claimed by the present invention. Inside.

Claims (7)

Translated fromChinese

1.一种LED显示屏控制装置，其特征是,包括：1. A LED display control device, characterized in that it comprises:接收模块(21)，用于接收视频信号并发送至处理模块(22)，所述视频信号中包含授权信息；A receiving module (21), configured to receive a video signal and send it to a processing module (22), the video signal including authorization information;处理模块(22)，用于读取视频信号中的授权信息并计算授权剩余时长，若授权剩余时长足够，则对视频信号添加解扰指令后转发至显示模块(23)，若授权剩余用完，则向显示模块(23)发送包含解扰指令的黑屏信号；The processing module (22) is used to read the authorization information in the video signal and calculate the remaining duration of the authorization. If the remaining duration of the authorization is sufficient, add a descrambling instruction to the video signal and forward it to the display module (23). , then send a black screen signal that includes a descrambling instruction to the display module (23);以及显示模块(23)，用于根据包含解扰指令的视频信号或黑屏信号驱动显示元件工作。And a display module (23), used to drive the display elements to work according to the video signal or black screen signal containing the descrambling instruction.2.根据权利要求1所述的一种LED显示屏控制装置，其特征是,所述显示模块(23)包括若干串联的驱动IC和至少一个解扰IC，所述解扰IC串联于相邻两个驱动IC之间；所述包含解扰指令的视频信号或黑屏信号在所述驱动IC和解扰IC之间依次传递；所述解扰IC被配置为根据解扰指令对视频信号或黑屏信号进行解扰处理后再传递至后级的驱动IC。2. The LED display control device according to claim 1, wherein the display module (23) includes several serial drive ICs and at least one descrambling IC, and the descrambling IC is connected in series to adjacent Between two driver ICs; the video signal or black screen signal containing the descrambling instruction is sequentially transmitted between the driver IC and the descrambling IC; the descrambling IC is configured to process the video signal or the black screen signal according to the descrambling instruction After descrambling processing, it is passed to the next-stage driver IC.3.根据权利要求1所述的一种LED显示屏控制装置，其特征是,所述处理模块(22)包括MCU模块和FPGA模块，所述MCU用于读取视频信号中的授权信息并计算授权剩余时长，并根据授权剩余时长的情况向FPGA模块发送相应的控制信息；所述FPGA模块根据接收到的控制信息决定向显示模块(23)发送包含解扰指令的视频信号或黑屏信号。3. A kind of LED display screen control device according to claim 1, it is characterized in that, described processing module (22) comprises MCU module and FPGA module, and described MCU is used for reading the authorization information in the video signal and calculates Authorize the remaining duration, and send corresponding control information to the FPGA module according to the situation of the authorized remaining duration; the FPGA module decides to send a video signal or a black screen signal containing a descrambling instruction to the display module (23) according to the received control information.4.根据权利要求1所述的一种LED显示屏控制装置，其特征是,所述处理模块(22)、接收模块(21)和显示模块(23)之间采用通用型可插拔信号接口连接。4. A LED display control device according to claim 1, characterized in that, a universal pluggable signal interface is adopted between the processing module (22), the receiving module (21) and the display module (23) connect.5.一种LED显示屏控制系统，其特征是,包括若干权利要求1-4任一所述的LED显示屏控制装置(20)以及至少一个发送模块(10)，若干LED显示屏控制装置(20)内的接收模块(21)依次串联；所述发送模块(10)与若干接收模块(21)中的首个连接以向其发送视频信号，所述首个接收模块(21)还将接收到的视频信号转发至后级的接收模块(21)。5. A LED display control system, characterized in that it comprises LED display control devices (20) according to any one of claims 1-4 and at least one sending module (10), several LED display control devices ( The receiving modules (21) in 20) are serially connected in sequence; the first connection of the sending module (10) and several receiving modules (21) to send video signals to it, and the first receiving module (21) will also receive The received video signal is forwarded to the receiving module (21) of the subsequent stage.6.一种LED显示屏控制方法，其特征是,包括：6. A LED display control method, characterized by comprising:接收模块(21)接收视频信号并发送至处理模块(22)，所述视频信号中包含授权信息；The receiving module (21) receives the video signal and sends it to the processing module (22), and the video signal contains authorization information;处理模块(22)读取视频信号中的授权信息并计算授权剩余时长，若授权剩余时长足够，则对视频信号添加解扰指令后转发至显示模块(23)，若授权剩余用完，则向显示模块(23)发送包含解扰指令的黑屏信号；The processing module (22) reads the authorization information in the video signal and calculates the remaining duration of the authorization. If the remaining duration of the authorization is sufficient, the video signal is added with a descrambling instruction and forwarded to the display module (23). The display module (23) sends a black screen signal that includes a descrambling instruction;显示模块(23)根据包含解扰指令的视频信号或黑屏信号驱动显示元件工作。The display module (23) drives the display elements to work according to the video signal or the black screen signal containing the descrambling instruction.7.根据权利要求6所述的一种LED显示屏控制方法，其特征是,所述显示模块(23)根据包含解扰指令的视频信号或黑屏信号驱动显示元件工作，具体包括：7. A LED display control method according to claim 6, characterized in that, the display module (23) drives the display elements to work according to the video signal or black screen signal containing the descrambling instruction, specifically comprising:将至少一个解扰IC串联于若干串联的驱动IC中的相邻两个驱动IC之间；Connecting at least one descrambling IC in series between two adjacent drive ICs in several series drive ICs;所述包含解扰指令的视频信号或黑屏信号在所述驱动IC和解扰IC之间依次传递；The video signal or black screen signal containing the descrambling instruction is sequentially transmitted between the driver IC and the descrambling IC;所述解扰IC根据解扰指令对视频信号或黑屏信号进行解扰处理后再传递至后级的驱动IC。The descrambling IC performs descrambling processing on the video signal or the black screen signal according to the descrambling instruction, and then transmits it to the subsequent driver IC.

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