Safe and credible LED large screen broadcast control system

Abstract

The invention discloses a safe and credible LED large screen broadcast control system, belongs to the technical field of LED large screen broadcast control, and aims to solve the technical problem of how to realize safe monitoring and control of LED large screen broadcast control and improve the safety and reliability of an LED large screen on the premise of not greatly increasing the product cost. According to the technical scheme, the system comprises a main control module, a TCM safety module, an identification module, a display module, a first storage module, a second storage module and an encryption module, the main control module integrates HDMI and DVI standard display output interfaces, and the main control module is in serial port communication with the TCM module. The TCM module communicates with the identification module through an IO bus and communicates with the first storage module and the second storage module through an SPI bus. The main control module communicates with the display module through a display bus; the master control module is communicated with the encryption module through a data bus, and the encryption module is communicated with the second storage module.

Description

Technical Field

[0001] The present invention relates to the technical field of LED large-screen broadcast control, and specifically to a secure and trustworthy LED large-screen broadcast control system. Background Art

[0002] With the rapid development of LED display technology, LED large screens, with their characteristics of high brightness, high definition, and vivid colors, have been widely used in multiple fields such as advertising media, sports events, and public information dissemination. However, with the expansion of the application scope, the security and trustworthiness of LED large-screen broadcast control systems have become the focus of attention in the industry. At the same time, the integration of information security technology has become an indispensable part of LED large-screen broadcast control systems. In addition, the development of intelligent technology has also brought new opportunities to secure and trustworthy LED large-screen broadcast control systems.

[0003] Currently, there are very few secure and trustworthy broadcast control technologies available for LED large-screen products on the market. Existing security technologies mainly rely on data encryption technology and sensitive information identification and filtering technology. The former uses encryption algorithms such as AES and RSA to encrypt transmission signals to prevent the playback content from being illegally intercepted or tampered with during transmission. The latter mainly needs to be deployed on the server or edge device side, relying on powerful algorithm processing capabilities and high network bandwidth, and there is still a risk of data interception and tampering during the multi-layer network transmission process.

[0004] Existing broadcast control security technologies are mainly based on the software level, including data encryption technology and sensitive information identification and filtering technology based on AI image recognition, with relatively single functions and low reliability. Although existing secure broadcast control systems have taken some information security measures, in the face of increasingly complex network attack means, the information security protection of the system is still in a relatively vulnerable state. For example, the lack of user identification and authentication, unauthorized use of materials, weak data encryption levels, etc. may all become potential security risks. In addition, some security broadcast control technologies also face system compatibility problems.

[0005] Therefore, how to achieve secure monitoring and control of LED large-screen broadcast, and improve the security and reliability of LED large screens without significantly increasing the product cost is a technical problem that needs to be solved urgently at present. Summary of the Invention

[0006] The technical task of the present invention is to provide a secure and trustworthy LED large-screen broadcast control system to solve the problem of how to achieve secure monitoring and control of LED large-screen broadcast and improve the security and reliability of LED large screens without significantly increasing the product cost.

[0007] The technical task of the present invention is achieved in the following manner. A secure and trustworthy LED large screen playback control system includes a main control module, a TCM security module, an identification module, a display module, a first storage module, a second storage module, and an encryption module. The main control module integrates HDMI and DVI standard display output interfaces. The main control module communicates with the TCM module through a serial port. The TCM module communicates with the identification module through an IO bus and communicates with the first storage module and the second storage module through an SPI bus. The main control module communicates with the display module through a display bus. The main control module and the encryption module communicate with each other through a data bus, and the encryption module and the second storage module communicate with each other.

[0008] Among them, the main control module is used for the TCM security module, the identification module, the display module, the first storage module, the second storage module, and the encryption module.

[0009] The identification unit is used for intelligently identifying the user's identity.

[0010] The display module is used to achieve large screen display through LED screen-like devices.

[0011] The first storage module is used to store keys.

[0012] The second storage module is used to store data.

[0013] The encryption module is used to encrypt data using an FPGA solution.

[0014] Preferably, the system further includes a power module, and the power module is used to ensure that the TCM module and the first storage module do not lose power.

[0015] Preferably, the main control module adopts an ARM architecture RK35XX platform for system control management.

[0016] The identification unit adopts an ISO7816 smart card.

[0017] The first storage module adopts an SPI FLASH chip.

[0018] The second storage module adopts an EMMC chip.

[0019] Preferably, the working process of the system is specifically as follows:

[0020] S1. Identity identification;

[0021] S2. System verification;

[0022] S3. Data monitoring;

[0023] S4. Data storage.

[0024] Preferably, during the identity recognition process in step S1, when powering on and starting up, the TCM module starts first and controls the recognition module to recognize the user's identity through the IO bus, and determines whether the user's identity recognition is successful:

[0025] If the user's identity recognition is successful, the system verification in step S2 is run;

[0026] If the user's identity recognition fails, the startup is stopped and the user is prompted to use a securely authenticated identity for recognition. After multiple consecutive (supporting custom number of times) recognition failures, the TCM module starts to alarm;

[0027] Meanwhile, when the TCM module detects abnormal data communication, the identity recognition function is started.

[0028] Preferably, during the system verification in step S2, the TCM module reads the relevant information of the software and hardware configuration through the serial bus, and compares it with the correct information (which has been encrypted through a specific algorithm) pre-stored in the first storage module, and determines whether the comparison is successful:

[0029] ① If the comparison is successful, the data monitoring in step S3 is run;

[0030] ② If the comparison fails, the next operation is stopped and the user is reminded to check whether the software and hardware configuration of the device has been tampered with.

[0031] Preferably, during the data monitoring in step S3, the TCM module monitors the communication data (non-storage data) through the LPC bus, and determines the data security level according to the preset detection criteria, specifically as follows:

[0032] When it is determined that the communication data belongs to the general level, the TCM module chooses to let it pass without any processing;

[0033] When it is determined that the communication data belongs to a high-security-level file, the TCM module first sends a communication interruption instruction to the main control module through the serial bus, and then starts the recognition module to recognize the current user's identity, and determines whether the identity recognition is successful:

[0034] If the identity recognition is successful, the TCM module sends a communication continuation instruction to the main control module;

[0035] If the recognition fails, the TCM module interrupts the corresponding data communication;

[0036] Among them, the data security level is determined through preset keywords, the amount of sensitive information data, and the data scale.

[0037] Preferably, during the data storage in step S4, the TCM module determines the data security level, specifically as follows:

[0038] When it is determined that the stored data belongs to the general level, no processing is performed;

[0039] When it is determined that the data belongs to a file with a high security level, the TCM module sends an instruction to the main control module through the serial bus. After the main control module controls the encryption module to perform encryption processing on the data based on a specific algorithm, a storage operation is performed and stored in the second storage unit.

[0040] A secure and trustworthy LED large screen broadcast control system of the present invention has the following advantages:

[0041] (1) The present invention solves the security hazards faced by LED large screens in actual use, improves the equipment security level and user experience, and can be widely applied to equipment such as LED large screens, splicing screens, and all-in-one machines;

[0042] (2) The present invention realizes the security monitoring and control of the LED large screen broadcast control system at the hardware level, and improves the security and reliability of the LED large screen without significantly increasing the product cost;

[0043] (3) Compared with the technologies on the current market, the present invention realizes the secure broadcast control of the LED large screen at the hardware level, improves the operation reliability and security level of the product without significantly increasing the cost, and is integrated into various LED large screens, splicing screens, and all-in-one machines and other equipment, and has good promotion value;

[0044] (4) The present invention realizes the security requirements of the broadcast control system for actual users at the hardware level by integrating the TCM and ISO7816 identification units;

[0045] (5) The present invention realizes the secure and reliable data communication of the broadcast control system by monitoring and managing the system communication data through the TCM and FPGA encryption modules;

[0046] (6) The present invention realizes the security and trustworthiness of the LED large screen broadcast control system at the hardware level through the control of the TCM module and the FPGA encryption module on the startup and data communication of the broadcast control system;

[0047] (7) The present invention realizes the security and trustworthiness function of the broadcast control system at the hardware level by integrating the TCM and FPGA encryption chips, and sets corresponding security levels based on different security risks; the present invention is compatible with Android, Linux, and domestic operating systems, has higher reliability and better compatibility, and can be quickly deployed on products such as LED large screens. Description of the Drawings

[0048] The present invention will be further described below with reference to the accompanying drawings.

[0049] Attached Figure 1 is a schematic structural diagram of a secure and trustworthy LED large screen broadcast control system. Detailed Implementation Modes

[0050] The following provides a detailed description of a secure and trustworthy LED large - screen broadcast control system of the present invention with reference to the accompanying drawings of the specification and specific embodiments.

[0051] Embodiment:

[0052] As shown in the attached Figure 1 This embodiment provides a secure and trustworthy LED large - screen broadcast control system, which includes a main control module, a TCM security module, an identification module, a display module, a storage module 1, a storage module 2, and an encryption module. The main control module integrates HDMI and DVI standard display output interfaces. The main control module communicates with the TCM module through a serial port. The TCM module communicates with the identification module through an IO bus and communicates with the storage module 1 and the storage module 2 through an SPI bus; the main control module communicates with the display module through a display bus; the main control module communicates with the encryption module through a data bus, and the encryption module communicates with the storage module 2;

[0053] Among them, the main control module is used for the TCM security module, the identification module, the display module, the storage module 1, the storage module 2, and the encryption module;

[0054] The identification unit is used for intelligently identifying the user identity;

[0055] The display module is used for realizing large - screen display through LED - screen - like devices;

[0056] The storage module 1 is used for storing keys;

[0057] The storage module 2 is used for storing data;

[0058] The encryption module is used for encrypting data using the FPGA solution.

[0059] This embodiment further includes a power supply module, which is used to ensure that the TCM module and the storage module 1 do not lose power.

[0060] In this embodiment, the main control module is controlled by the ARM - architecture RK35XX platform of the system management,

[0061] In this embodiment, the identification unit uses an ISO7816 smart card,

[0062] In this embodiment, the storage module 1 uses an SPI FLASH chip.

[0063] In this embodiment, the storage module 2 uses an EMMC chip.

[0064] The working process of this embodiment is specifically as follows:

[0065] S1. Identity Recognition: When powered on and starting up, the TCM module starts first and controls the recognition module through the IO bus to identify the user's identity, and determines whether the user identity recognition is successful:

[0066] If the user identity recognition is successful, the system verification in step S2 is run;

[0067] If the user identity recognition fails, the startup is stopped and the user is prompted to use a securely authenticated identity for recognition. After consecutive failures (the number of times supports customization), the TCM module activates the alarm;

[0068] Meanwhile, when the TCM module detects abnormal data communication, it activates the identity recognition function;

[0069] S2. System Verification: The TCM module reads the relevant information of the software and hardware configuration through the serial bus, and compares it with the correct information (which has been encrypted by a specific algorithm) pre-stored in Storage Module 1, and determines whether the comparison is successful:

[0070] ① If the comparison is successful, the data monitoring in step S3 is run;

[0071] ② If the comparison fails, the next operation is stopped and the user is reminded to check whether the device software and hardware configuration has been tampered with;

[0072] S3. Data Monitoring: The TCM module monitors the communication data (non-storage data) through the LPC bus, and determines the data security level according to the preset detection criteria, as follows:

[0073] When it is determined that the communication data belongs to the general level, the TCM module chooses to let it through without any processing;

[0074] When it is determined that the communication data belongs to a high-security level file, the TCM module first sends a communication interruption instruction to the main control module through the serial bus, then activates the recognition module to identify the current user, and determines whether the identity recognition is successful:

[0075] If the identity recognition is successful, the TCM module sends a communication continuation instruction to the main control module;

[0076] If the recognition fails, the TCM module interrupts the corresponding data communication;

[0077] Among them, the data security level is determined through preset keywords, the amount of sensitive information data, and the data scale;

[0078] S4. Data Storage: The TCM module determines the data security level, as follows:

[0079] When it is determined that the stored data belongs to the general level, no processing is done;

[0080] When it is determined that the data belongs to a file with a high security level, the TCM module sends an instruction to the main control module through the serial bus. After the main control module controls the encryption module to perform encryption processing on the data based on a specific algorithm, a storage operation is carried out and the data is stored in the second storage unit.

[0081] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A secure and trustworthy LED large screen broadcast control system, characterized in that The system includes a main control module, a TCM security module, an identification module, a display module, a storage module 1, a storage module 2, and an encryption module. The main control module integrates HDMI and DVI standard display output interfaces. The main control module communicates with the TCM module through a serial port. The TCM module communicates with the identification module through an IO bus and communicates with the storage module 1 and the storage module 2 through an SPI bus. The main control module communicates with the display module through a display bus. The main control module and the encryption module communicate with each other through a data bus, and the encryption module communicates with the storage module 2. Among them, the main control module is used for the TCM security module, the identification module, the display module, the storage module 1, the storage module 2, and the encryption module. The identification unit is used for intelligent identification of the user identity. The display module is used to realize large-screen display through devices such as LED screens. The storage module 1 is used to store keys. The storage module 2 is used to store data. The encryption module is used to encrypt data using an FPGA solution.

2. The secure and trustworthy LED large screen broadcast control system according to claim 1, wherein The system also includes a power module, which is used to ensure that the TCM module and the storage module 1 do not lose power.

3. The secure and trustworthy LED large screen broadcast control system according to claim 1, wherein The main control module adopts an ARM architecture RK35XX platform for system control management. The identification unit adopts an ISO7816 smart card. The storage module 1 adopts an SPI FLASH chip. The storage module 2 adopts an EMMC chip.

4. The secure and trustworthy LED large screen broadcast control system according to claim 1, characterized in that, The working process of the system is as follows: S1. Identity identification; S2. System verification; S3. Data monitoring; S4. Data storage.

5. The secure and trustworthy LED large screen broadcast control system according to claim 4, characterized in that In the identity identification process of step S1, when powered on and started, the TCM module starts first and controls the identification module to identify the user identity through the IO bus, and judges whether the user identity is successfully identified: If the user identity is successfully identified, the system verification of step S2 is run; If the user identity is not recognized, the startup is stopped and the user is prompted to identify with a securely authenticated identity. After multiple consecutive identification failures, the TCM module starts an alarm. At the same time, when the TCM module detects abnormal data communication, it starts the identity identification function.

6. The secure and trustworthy LED large screen broadcast control system according to claim 4, characterized in that, During the system verification of step S2, the TCM module reads the relevant information of the software and hardware configuration through the serial port bus, compares it with the correct information pre-stored in the storage module 1, and judges whether the comparison is successful: ① If the comparison is successful, the data monitoring of step S3 is run; ② If the comparison fails, the next operation is stopped and the user is reminded to check whether the software and hardware configuration of the device has been tampered with.

7. The secure and trustworthy LED large screen broadcast control system according to claim 4, characterized in that, During the data monitoring of step S3, the TCM module monitors the communication data through the LPC bus and judges the data security level according to the preset detection standard, as follows: When it is judged that the communication data belongs to the general level, the TCM module chooses to let it through without processing; When it is judged that the communication data belongs to a high-security-level file, the TCM module first sends a communication interruption instruction to the main control module through the serial port bus, then starts the identification module to identify the current user, and judges whether the identity identification is successful: If the identity identification is successful, the TCM module sends a communication continuation instruction to the main control module; If the identification fails, the TCM module interrupts the corresponding data communication; Among them, the data security level is judged by preset keywords, the amount of sensitive information data, and the data scale.

8. The secure and trustworthy LED large screen broadcast control system according to claim 4, characterized in that When storing the data in step S4, the TCM module judges the data security level, specifically as follows: When it is judged that the stored data belongs to the general level, no processing is performed; When it is judged that the data belongs to a file with a high security level, the TCM module sends an instruction to the main control module through the serial bus. After the main control module controls the encryption module to perform encryption processing on the data based on a specific algorithm, the storage action is performed and stored in the second storage unit.

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