WO2022193068A1

WO2022193068A1 - Content publishing method and led display screen

Info

Publication number: WO2022193068A1
Application number: PCT/CN2021/080787
Authority: WO
Inventors: 聂波涛
Original assignee: 深圳市艾比森光电股份有限公司
Priority date: 2021-03-15
Filing date: 2021-03-15
Publication date: 2022-09-22

Abstract

Disclosed in embodiments of the present application are a content publishing method and an LED display screen in the technical field of display screen display. The method comprises: the LED display screen receives first encrypted information broadcast by a server, the first encrypted information being block information; the LED display screen obtains, according to the first encrypted information and a private key of the LED display screen, content to be published, said content comprising a target instruction which is to be executed by the LED display screen; and the LED display screen executes the target instruction. In the embodiments of the present application, the LED display screen obtains said content according to the first encrypted information and the private key of the LED display screen, such that high security of said content can be ensured.

Description

A content publishing method and LED display

technical field

The present application relates to the technical field of display screen display, and in particular, to a content publishing method and an LED display screen.

Background technique

The display screen is mainly divided into two categories: light emitting diode (LED) display and liquid crystal display (LCD). Among them, liquid crystal displays are mainly used in digital clocks and many portable computers. LED display (LED display) consists of a small LED module panel, a device used to display various information such as text, images, and videos. LED electronic display integrates microelectronics technology, computer technology and information processing. It has the advantages of bright colors, wide dynamic range, high brightness, long life, stable and reliable operation. The LED display screen is an electronic display screen composed of LED dot matrix. By changing the red and green light beads on and off, the screen display content forms such as text, animation, pictures, and videos are converted in time, and the component display control is carried out through the modular structure. It is mainly divided into display module, control system and power supply system. The display module is a dot matrix of LED lights to form the screen to emit light; the control system is to control the on-off conditions in the area to convert the content displayed on the screen; the power system is to convert the input voltage and current to meet the needs of the display screen. Each pixel of a single-color LED display consists of one single-color LED light-emitting diode, that is, each pixel contains one LED light-emitting diode. Each pixel of the dual-primary color LED display screen is composed of 2 LED light-emitting diodes of 2 single colors, that is, each dual-primary color pixel contains 2 LED light-emitting diodes. For a three-primary full-color LED display, the diodes that make up the pixel include 3 or more. For example, it is composed of three diodes that emit red light, green light and blue light respectively, so that the purpose of color display can be achieved according to the color matching principle of the three primary colors. In order to improve the display effect, some display screens may be composed of 4 diodes: 2 red LEDs, 1 green LED and 1 blue LED. The LED screen can realize the conversion between different forms of various information presentation modes, and can be used indoors and outdoors, and has incomparable advantages over other display screens. With the characteristics of high brightness, low power consumption, low voltage demand, small and convenient equipment, long service life, stable impact resistance, and strong resistance to external interference, it has developed rapidly and is widely used in various fields.

LED displays are widely used in conferences, teaching, advertising, and interactive games. As the application of LED display becomes more and more extensive, the operation of LED display becomes more and more complicated. At present, the common way of content release (such as advertisement placement) of the LED display screen is to use the mobile storage device storing the content to be inserted into the LED display screen or the host computer associated with the LED display screen, and the LED display screen or the host computer reads the mobile storage device. content on the storage device. The content release of the LED display refers to displaying images or playing advertisements through the LED display. This method requires a large number of personnel to operate and consumes a lot of time. Therefore, it is necessary to study a content publishing scheme with higher content publishing efficiency.

SUMMARY OF THE INVENTION

The embodiment of the present application discloses a content publishing method and an LED display screen, which can improve the efficiency of publishing content through the LED display screen, and the operation is convenient.

In the first aspect, the embodiments of the present application provide another content publishing method, the method includes: the LED display screen receives first encrypted information broadcast by a server; the first encrypted information is block information; the LED display screen is based on The first encrypted information and the private key of the LED display screen are used to obtain the content to be published; the content to be published includes the target instruction to be executed by the LED display screen; the LED display screen executes the target instruction.

In the embodiment of the present application, the LED display screen obtains the content to be published according to the first encrypted information and the private key of the LED display screen; the security of the content to be published can be ensured, and the security is high.

In a possible implementation manner, the first encrypted information includes a first encrypted instruction and a first encrypted address; the LED display screen obtains the to-be-released information according to the first encrypted information and the private key of the LED display screen The content includes: the LED display uses the private key of the LED display to decrypt the first encrypted command to obtain the first control command, and decrypt the first encrypted address to obtain the first address information; the LED display The screen obtains a target image according to the first address information and the private key of the LED display screen; the target image is included in the to-be-published content; the LED display screen executes the target instruction including: the LED display The screen displays the target image according to the first control instruction; the first control instruction is the target instruction.

In this implementation, the LED display screen uses the private key of the LED display screen to decrypt the first encrypted command to obtain the first control command, and decrypt the first encrypted address to obtain the first address information; the security is high.

In a possible implementation manner, the first encrypted information includes a second encrypted instruction and a second encrypted address; the LED display screen obtains the to-be-released information according to the first encrypted information and the private key of the LED display screen The content includes: the LED display uses the private key of the LED display to decrypt the second encrypted command to obtain the second control command, and decrypt the second encrypted address to obtain the second address information; the LED display The screen obtains the target video according to the second address information and the private key of the LED display screen; the target video is included in the to-be-published content; the LED display screen executes the target instruction including: the LED display screen The screen plays the target video according to the second control instruction; the second control instruction is the target instruction.

In this implementation, the LED display screen uses its private key to decrypt the second encrypted command to obtain the second control command, and decrypt the second encrypted address to obtain the second address information; it can prevent the second control command and the second address information from being Give way.

In a possible implementation manner, the first encrypted information includes a third encrypted instruction; and the LED display screen obtains the content to be published according to the first encrypted information and the private key of the LED display screen, including: the The LED display screen uses the private key of the LED display screen to decrypt the third encrypted command to obtain a third control command; the third control command is the target command.

In this implementation manner, the LED display screen uses its private key to decrypt the third encrypted command to obtain the third control command, which can prevent the third control command from being leaked.

In a possible implementation manner, the method further includes: the LED display screen uploads the status information of the LED display screen to the blockchain; or, the LED display screen sends the LED display to the content publishing device status information on the screen.

In this implementation manner, by uploading the status information to the blockchain, the LED display screen can enable the content publishing device to query the status information from the blockchain.

In a second aspect, an embodiment of the present application provides a method for publishing content, the method comprising: a content publishing device encrypts content to be published using a public key of an LED display screen to obtain second encrypted information; the content to be published includes the The instruction to be executed by the LED display screen; the content publishing device sends the second encrypted information to the server; at least part of the information in the second encrypted information is used to be written into the blockchain by the server.

In the embodiment of the present application, the content distribution apparatus uses the public key of the LED display screen to encrypt the content to be published, which can ensure the security of the content to be published. The content distribution device sends the second encrypted information to the server, so that the server uploads it to the block chain, so that the LED display screen obtains the content to be published from the block chain. It can be seen that the content publishing device can efficiently publish content through the LED display with the help of blockchain technology.

In a possible implementation manner, the content distribution apparatus sending the second encrypted information to the server includes: the content distribution apparatus sends the second encrypted information to the server through a peer-to-peer network.

In this implementation manner, the content distribution apparatus sends the second encrypted information to the server through the peer-to-peer network, which can save the performance and bandwidth requirements of the server.

In a possible implementation manner, before the content distribution apparatus sends the second encrypted information to a server through a peer-to-peer network, the method further includes: the content distribution apparatus sends the second encrypted information to the server through a first node. The encrypted information is sent to the server, the first node is a node in the peer-to-peer network, and the first node is the most active node among two or more nodes adjacent to the content distribution device, or The node closest to the content distribution device.

In this implementation manner, the content distribution apparatus sends the second encrypted information to the server through the first node, which has high reliability.

In a possible implementation manner, the method further includes: the content publishing device inquires about the status information of the LED display screen by communicating with the LED display screen; or, the content publishing device obtains information from the blockchain Query the status information of the LED display.

In this implementation manner, the content distribution apparatus can quickly query the status information of the authorized LED display screen.

In a possible implementation manner, the content to be published includes a target image and a first control instruction for controlling the LED display screen to display the target image; or, the content to be published includes a target video and a first control instruction for controlling the LED display screen to display the target image; The LED display screen plays the second control instruction of the target video.

In this implementation manner, the content distribution device can control the LED display screen to display the target image or play the target video.

In a third aspect, an embodiment of the present application provides a content distribution method, the method includes: a server receives second encrypted information from a content distribution device; the second encrypted information is sent by the content distribution device using a public display of an LED display. The key is obtained by encrypting the content to be published, and the content to be published includes the instructions to be executed by the LED display screen; the server writes the target information into the blockchain; the target information is obtained based on the second encrypted information; The server broadcasts first encrypted information, the first encrypted information is used for the LED display screen to obtain the to-be-published information, and the first encrypted information is block information.

In the embodiment of the present application, the server receives the second encrypted information from the content distribution device, which can ensure the security of the content to be distributed. The server broadcasts the first encrypted information, so that the LED display screen uses the first encrypted information to obtain the information to be published, which can improve the content publishing efficiency. In addition, the server writes the target information into the blockchain, and when a small number of servers fail or are controlled by hackers, the content distribution system will not be out of control.

In a possible implementation manner, the second encrypted information includes an encrypted image and a first encrypted instruction, and the encrypted image is obtained by encrypting a target image included in the content to be published by using the public key of the LED display screen, and the The first encryption instruction is obtained by encrypting the first control instruction included in the content to be published and used to control the LED display screen to display the target image by using the public key of the LED display screen; the server writes the target information into the area The block chain includes: the server stores the encrypted image, and writes first address information and the first encrypted instruction into the block chain; the first address information indicates the storage address of the encrypted image, the first address information An encrypted information includes the first encrypted instruction and a first encrypted address; the first encrypted address is obtained by encrypting the first address information with the public key of the LED display screen.

In this implementation, the server writes the first address information and the first encrypted instruction into the blockchain, and broadcasts the first encrypted information. Since the server does not need to broadcast encrypted images, the amount of data sent by the server can be reduced.

In a possible implementation manner, the second encrypted information includes an encrypted video and a second encrypted instruction, and the encrypted video is obtained by encrypting the target video included in the content to be published by using the public key of the LED display screen. The second encryption instruction is obtained by encrypting the second control instruction included in the content to be published and used to control the LED display screen to play the target video by using the public key of the LED display screen; the server writes the target information into the area The block chain includes: the server stores the encrypted video, and writes the second address information and the second encrypted instruction into the block chain; the second address information indicates the storage address of the encrypted video, and the second address information indicates the storage address of the encrypted video. An encrypted information includes the second encrypted instruction and a second encrypted address; the second encrypted address is obtained by encrypting the second address information with the public key of the LED display screen.

In this implementation manner, the server writes the second address information and the second encrypted instruction into the blockchain, and broadcasts the first encrypted information. Since the server does not need to broadcast encrypted video, the amount of data sent by the server can be reduced.

In a possible implementation manner, the second encrypted information includes a third encrypted instruction, and the third encrypted instruction is obtained by encrypting a third control instruction included in the content to be published by using the public key of the LED display screen. The third control instruction is used to control the LED display screen to perform any action: turn on the LED display screen, turn off the LED display screen, and update the configuration information of the LED display screen.

In a possible implementation manner, the method further includes: the server receives the status information from the LED display screen; the server writes the status information of the LED display screen into the blockchain.

In a fourth aspect, an embodiment of the present application provides an LED display screen, comprising: a transceiver unit for receiving first encrypted information broadcast by a server; the first encrypted information is block information; a processing unit for The first encrypted information and the private key of the LED display screen are used to obtain the content to be published; the content to be published includes the target instruction to be executed by the LED display screen; the processing unit is further configured to execute the target instruction .

In a possible implementation manner, the first encrypted information includes a first encrypted instruction and a first encrypted address; the processing unit is specifically configured to use the private key of the LED display screen to decrypt the first encrypted instruction to Obtain the first control instruction, and decrypt the first encrypted address to obtain the first address information; obtain the target image according to the first address information and the private key of the LED display screen; the target image is included in the The content to be published; the target image is displayed according to the first control instruction; the first control instruction is the target instruction.

In a possible implementation manner, the first encrypted information includes a second encrypted instruction and a second encrypted address; the processing unit is specifically configured to use the private key of the LED display to decrypt the second encrypted instruction to Obtain the second control instruction, and decrypt the second encrypted address to obtain the second address information; obtain the target video according to the second address information and the private key of the LED display screen; the target video is included in the The content to be published; the target video is played according to the second control instruction; the second control instruction is the target instruction.

In a possible implementation manner, the first encrypted information includes a third encrypted instruction; the processing unit is specifically configured to decrypt the third encrypted instruction using the private key of the LED display screen to obtain a third control instruction ; The third control instruction is the target instruction.

In a possible implementation manner, the transceiver unit is further configured to upload the status information of the LED display screen to the blockchain; or, the transceiver unit is further configured to send the content publishing device the Status information on the LED display.

Regarding the technical effects brought about by the fourth aspect or various optional implementation manners, reference may be made to the introduction to the technical effects of the first aspect or corresponding implementation manners.

In a fifth aspect, an embodiment of the present application provides a content distribution device, characterized in that it includes:

a processing unit, configured to encrypt the content to be published using the public key of the LED display screen to obtain second encrypted information; the content to be published includes the instructions to be executed by the LED display screen;

A transceiver unit, configured to send the second encrypted information to a server; at least part of the information in the second encrypted information is used to be written into the blockchain by the server.

In a possible implementation manner, the transceiver unit is specifically configured to send the second encrypted information to a server through a peer-to-peer network.

In a possible implementation manner, the transceiver unit is specifically configured to send the second encrypted information to the server through a first node, where the first node is a node in the peer-to-peer network, and the The first node is the most active node among two or more nodes adjacent to the content distribution device or the node closest to the content distribution device.

In a possible implementation manner, the processing unit is further configured to query the status information of the LED display screen by communicating with the LED display screen; or, the processing unit is further configured to retrieve information from the blockchain Query the status information of the LED display.

Regarding the technical effects brought about by the fifth aspect or various optional implementation manners, reference may be made to the introduction to the technical effects of the second aspect or corresponding implementation manners.

In a sixth aspect, an embodiment of the present application provides a server, including: a transceiver unit configured to receive second encrypted information from a content distribution device; the second encrypted information is used by the content distribution device using a public key of an LED display screen. The key is obtained by encrypting the content to be published, and the content to be published includes the instructions to be executed by the LED display screen; the processing unit is used to write the target information into the blockchain; the target information is obtained based on the second encrypted information ; the transceiver unit is also used for broadcasting first encrypted information, the first encrypted information is used for the LED display screen to obtain the information to be released, and the first encrypted information is block information.

In a possible implementation manner, the second encrypted information includes an encrypted image and a first encrypted instruction, and the encrypted image is obtained by encrypting a target image included in the content to be published by using the public key of the LED display screen, and the The first encryption instruction is obtained by encrypting the first control instruction included in the to-be-published content for controlling the LED display screen to display the target image by using the public key of the LED display screen; the processing unit is further configured to: The encrypted image is stored in the storage device of the server; the processing unit is specifically configured to write the first address information and the first encrypted instruction into the blockchain; the first address information indicates the encrypted image The first encrypted information includes the first encrypted instruction and the first encrypted address; the first encrypted address is obtained by encrypting the first address information with the public key of the LED display screen.

In a possible implementation manner, the second encrypted information includes an encrypted video and a second encrypted instruction, and the encrypted video is obtained by encrypting the target video included in the content to be published by using the public key of the LED display screen. The second encryption instruction is obtained by encrypting the second control instruction included in the to-be-published content for controlling the LED display screen to play the target video by using the public key of the LED display screen; the processing unit is further configured to The encrypted video is stored in the storage device of the server; the processing unit is specifically configured to write the second address information and the second encrypted instruction into the blockchain; the second address information indicates the encrypted video The first encrypted information includes the second encrypted instruction and the second encrypted address; the second encrypted address is obtained by encrypting the second address information with the public key of the LED display screen.

In a possible implementation manner, the second encrypted information includes a third encrypted instruction, and the third encrypted instruction is obtained by encrypting a third control instruction included in the content to be published by using the public key of the LED display screen.

In a possible implementation manner, the transceiver unit is further configured to receive status information from the LED display screen; the processing unit is further configured to write the status information of the LED display screen into the blockchain.

Regarding the technical effects brought about by the sixth aspect or various optional implementation manners, reference may be made to the introduction to the technical effects of the third aspect or corresponding implementation manners.

In a seventh aspect, an embodiment of the present application provides an LED display screen, the LED display screen includes: a processor and a memory, wherein the memory is used for storing instructions, and the processor is used for executing the instructions stored in the memory, The processor is caused to perform the method of the first aspect and any of the possible implementations described above.

In an eighth aspect, an embodiment of the present application provides a content distribution apparatus, the content distribution apparatus includes: a processor and a memory, wherein the memory is used for storing instructions, and the processor is used for executing the instructions stored in the memory, The processor is caused to perform the method of the second aspect and any of the possible implementations described above.

In a ninth aspect, an embodiment of the present application provides a server, the server includes: a processor and a memory, wherein the memory is used for storing instructions, and the processor is used for executing the instructions stored in the memory, so that the processing The device executes the method of the third aspect and any of the possible implementations described above.

In a tenth aspect, an embodiment of the present application provides a chip, where the chip includes a data interface and a processor, wherein the processor is configured to execute the method in the first aspect or any possible implementation manner of the first aspect.

In an eleventh aspect, an embodiment of the present application provides a chip, where the chip includes a data interface and a processor, wherein the processor is configured to execute the method in the second aspect or any possible implementation manner of the second aspect.

In a twelfth aspect, an embodiment of the present application provides a chip, where the chip includes a data interface and a processor, wherein the processor is configured to execute the method in the third aspect or any possible implementation manner of the third aspect.

In a thirteenth aspect, an embodiment of the present application provides a computer-readable storage medium, where the computer storage medium stores a computer program, the computer program includes program instructions, and when executed by a processor, the program instructions cause the processor to execute the above-mentioned The first aspect and any optional implementation method of the above-mentioned first aspect.

In a fourteenth aspect, an embodiment of the present application provides a computer-readable storage medium, where the computer storage medium stores a computer program, the computer program includes program instructions, and when executed by a processor, the program instructions cause the processor to execute the above-mentioned The second aspect and any optional implementation method of the foregoing second aspect.

In a fifteenth aspect, an embodiment of the present application provides a computer-readable storage medium, where the computer storage medium stores a computer program, the computer program includes program instructions, and when executed by a processor, the program instructions cause the processor to execute the above-mentioned The third aspect and any optional implementation method of the foregoing third aspect.

In a sixteenth aspect, an embodiment of the present application provides a computer program product, where the computer program product includes program instructions, the program instructions, when executed by a processor, cause the processor to execute the first aspect and any one of the above-mentioned options. The chosen method of implementation.

In a seventeenth aspect, an embodiment of the present application provides a computer program product, where the computer program product includes program instructions, the program instructions, when executed by a processor, cause the processor to execute the second aspect and any one of the above-mentioned options. The chosen method of implementation.

In an eighteenth aspect, an embodiment of the present application provides a computer program product, where the computer program product includes program instructions, and when executed by a processor, the program instructions cause the processor to execute the third aspect and any one of the above-mentioned options. The chosen method of implementation.

In a nineteenth aspect, an embodiment of the present application provides a content distribution system, where the content distribution system includes: the content distribution device of the fourth aspect and any optional implementation, the fifth aspect and any optional implementation. The server of the selected implementation manner and the LED display screen of the sixth aspect and any of the optional implementation manners.

Description of drawings

Fig. 1 is a kind of LED display screen remote management system provided by the embodiment of this application;

FIG. 2 is a schematic structural diagram of a content publishing system according to an embodiment of the present application;

3 is a flowchart of a content publishing method provided by an embodiment of the present application;

4 is a flowchart of another content publishing method provided by an embodiment of the present application;

5 is a flowchart of another content publishing method provided by an embodiment of the present application;

FIG. 6 is an interactive flowchart of a content publishing method provided by an embodiment of the present application;

FIG. 7 is a schematic structural diagram of a content publishing apparatus according to an embodiment of the present application;

FIG. 8 is a schematic structural diagram of a server according to an embodiment of the present application;

9 is a schematic structural diagram of an LED display screen provided by an embodiment of the present application;

FIG. 10 is a schematic structural diagram of another content distribution apparatus provided by an embodiment of the present application;

FIG. 11 is a schematic structural diagram of another server provided by an embodiment of the present application.

Detailed ways

The terms "first", "second", and "third" in the description embodiments and claims of the present application and the drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. order. Furthermore, the terms "comprising" and "having" and any variations thereof, are intended to cover non-exclusive inclusion, eg, comprising a series of steps or elements. A method, system, product or device is not necessarily limited to those steps or units expressly listed, but may include other steps or units not expressly listed or inherent to the process, method, product or device.

As described in the background art, there is a need to research a more efficient content distribution scheme. The following introduces a remote management system for an LED display screen with reference to the accompanying drawings, and the management system supports the remote management of the LED display screen.

FIG. 1 is a remote management system for an LED display screen provided by an embodiment of the present application. As shown in Figure 1, the LED display remote management system includes a computer device, a video controller and an LED display. The management process implemented by the LED display remote management system in Figure 1 is as follows: the computer equipment sends content (such as broadcasts or images) to the video controller, the video controller sends it to the LED display, and the LED display plays the content. The LED display remote management system in Figure 1 mainly has the following defects: 1) The number of LED displays managed by computer equipment is limited and cannot be adapted to large-scale operations; 2) In this system, the so-called remote management is not Based on the Internet, it is based on a self-built local area network, which can only achieve local management.

The present application provides a content distribution system with high content distribution efficiency, which can realize both remote management of content distribution and large-scale operation.

The following first introduces the architecture of the content publishing system provided by the present application with reference to the accompanying drawings.

FIG. 2 is a schematic structural diagram of a content publishing system according to an embodiment of the present application. As shown in FIG. 2 , the content distribution system includes: a content distribution device, a server and an LED display screen, which are connected through the Internet, and each of the three can be regarded as a node. Only one content distribution apparatus is shown in FIG. 2 . It should be understood that the content distribution system in FIG. 2 may include multiple content distribution devices. The content distribution device can be a computer, a mobile phone, a tablet computer or other devices. The LED display screen in the content distribution system can be replaced by a liquid crystal display (LCD) and other LED display screens capable of displaying images or playing videos.

In the content distribution system of FIG. 2, data transmission adopts a peer-to-peer (P2P) network. By adopting the P2P network to realize data transmission between any two nodes, the bandwidth requirement of the server can be reduced. Each node can have an address table for storing the address data of other nodes. Address data may include the node's identity, IP address, public key, and other information describing the node (eg, model, location, etc.). When each node sends or obtains data, it preferentially selects the nearest or most active node among its multiple adjacent nodes. The most important thing is that each node can communicate with another node, just need to finally write the communication result to the blockchain. For a node, the closest node among multiple adjacent nodes of the node may be the node closest to the node. For a node, the most active node among multiple nodes adjacent to the node may be the node that communicates with the node most frequently.

In the content publishing system in Figure 2, the server is used to save and maintain the blockchain, use the consensus algorithm to generate blocks, and write them into the blockchain. Since the main job of the server is to maintain the blockchain, it does not need to care about the specific working status of the LED display, so the performance requirements of the server can be reduced.

In the content publishing system shown in Figure 2, each node works independently, and entry and exit will not affect the normal operation of the system. When a small number of servers fail or are controlled by hackers, the content distribution system will not be out of control, and the security is high.

In the content distribution system of FIG. 2, each node, that is, each content distribution device, server and LED display screen has a key generated by an asymmetric encryption algorithm. All information will be encrypted using the public key, which can only be decrypted by the owner of the private key, preventing data leakage. For example, the content distribution device A needs the LED display screen B to display a picture, and the content distribution device A uses the public key of the LED display screen B to encrypt the image and the control command at the same time, and then send it to the server C. Server C first puts the encrypted picture into the storage space, and then writes the storage address and control command of the picture into the blockchain, and broadcasts it. After LED display B receives the block, it decrypts it with the private key to get the control command to play the picture and the address where the picture is located. The LED display starts to download pictures from the server and display them.

In this application, the main functions of the content distribution device may include: uploading data (corresponding to the second encrypted information) to the server; obtaining the status information of the LED display screen related to itself in the blockchain, and making corrections to exceptions or changes. Response; can communicate directly with the LED display to query the status information of the authorized LED display. The LED display screen related to the content distribution device in the blockchain may be an authorized LED display screen of the content distribution device. In response to the abnormality or the change, the content distribution apparatus may adjust the status information of the LED display screen in its address table accordingly according to the status information of the LED display screen. The abnormality here may refer to the abnormal state of the LED display screen, and the change may refer to the change of the attribute information of the LED display screen, such as the change of the configuration information or the change of the IP address.

In this application, the server may be a cloud server, a self-built server, a computer or other equipment, and its main functions may include: receiving data uploaded by a content distribution device, classifying the data, storing the content in the storage space, and writing control commands into the area Blockchain; receive the status information uploaded by the LED display and write it into the blockchain.

In this application, the main functions of the LED display screen may include: obtaining the blocks related to itself in the blockchain, and performing actions according to the control commands therein. These actions may include switching the machine on and off, obtaining the content to be published according to the settings, and performing actions according to the settings. Display or update configuration information; upload status information to the server.

The content distribution system provided by the present application and the main functions of each node in the content distribution system have been described above. In the content distribution system provided by the present application, the three nodes of the content distribution device, the server and the LED display screen respectively execute different content distribution processes. The content publishing process performed by these three nodes can constitute a complete content publishing process. The flow of the content publishing method executed by each node in the content publishing system is described below.

FIG. 3 is a flowchart of a content publishing method provided by an embodiment of the present application. FIG. 3 is a flowchart of a content distribution method performed by a content distribution apparatus. As shown in Figure 3, the method includes:

301. The content distribution apparatus encrypts the content to be distributed by using the public key of the LED display screen to obtain second encrypted information.

The method in FIG. 3 is applied to a content distribution system including a content distribution device, a server and an LED display screen. The to-be-published content includes instructions to be executed by the LED display screen. The instruction to be executed by the LED display screen can be an instruction to turn off the LED display screen, an instruction to turn on the LED display screen, an instruction to display a certain image, an instruction to play a certain video, or an instruction for other instruction. The LED display screen may be an LED display screen, an LCD or other display screens, which are not limited in this application. The LED display screen may be an authorized device of the content distribution device. That is to say, the content distribution device can control the LED display screen by sending control commands. For example, the content publishing device controls the LED display screen to turn on and off, obtain the content to be published and display or update configuration information, etc. by sending control instructions (ie, instructions to be executed by the LED display screen) to the LED display screen. The content distribution device may store an address table, and the address table may include the public key, identity, IP address, etc. of the LED display screen. The content distribution device can obtain the public key of the LED display screen from its stored address table. In a possible implementation manner, the address table stored by the content distribution device may include the public keys, identities, IP addresses, etc. of multiple adjacent nodes, as well as the information of one or more LED display screens that the content distribution device has been authorized to obtain. Public keys, identities, IP addresses, etc. Content distribution device, LED display, and server are three different identities, and the identity of each node is one of these three identities. In this implementation manner, the content distribution apparatus can obtain the public key, identity, IP address, etc. of any LED display screen that it has obtained authorization from the address table.

In a possible implementation manner, the content publishing apparatus queries the status information of the LED display screen by communicating with the LED display screen; or, the content publishing apparatus queries the status information of the LED display screen from the blockchain. In this implementation manner, the content publishing apparatus can quickly query the status information of the LED display screen. In this way, the user can control the LED display screen through the content publishing device according to the status information of the LED display screen. For example, the content distribution device finds that the LED display screen is in a fault state, and the content distribution device can send a control command to turn off the LED display screen.

302. The content distribution apparatus sends the second encrypted information to the server.

A possible implementation manner of step 302 is as follows: the content distribution apparatus sends the second encrypted information to the server through a peer-to-peer network. The content distribution device sending the second encrypted information to the server through the peer-to-peer network may be: the content distribution device sends the second encrypted information to the server through a first node, and the first node is a node in the peer-to-peer network , the first node is the most active node among two or more nodes adjacent to the content distribution device or the node closest to the content distribution device. The first node may directly send the second encrypted information to the server, or may send the second encrypted information to the server through other nodes. It should be understood that the content distribution apparatus may send the second encrypted information to the server through one or more nodes. If the content distribution device can communicate directly with the server (ie, the server is an adjacent node of the content distribution device), the content distribution device can directly send the second encrypted information to the server, that is, it does not need to be forwarded to the server through other nodes. If the content distribution apparatus cannot directly communicate with the server (that is, the server is not an adjacent node of the content distribution apparatus), the content distribution apparatus forwards the second encrypted information to the server through other nodes. For example, the content distribution apparatus sends the second encrypted information to the first node, the first node forwards the second encrypted information to the second node, and the second node sends the second encrypted information to the server. In this implementation manner, the content distribution apparatus sends the second encrypted information to the server through the first node, which has high reliability.

In a possible implementation manner, the content to be published includes a target image and a first control instruction for controlling the LED display screen to display the target image. Encrypting the content to be published by the content distribution device using the public key of the LED display screen may be: the content distribution device uses the public key of the LED display screen to encrypt the target image to obtain the encrypted image, and uses the public key of the LED display screen to encrypt the first control instruction Encryption is performed to obtain a first encrypted instruction; the second encrypted information includes an encrypted image and a first encrypted instruction. After receiving the second encrypted information, the server can store the encrypted image, write the storage address of the encrypted image and the first encrypted instruction into the block chain, and broadcast the block information. After receiving the block information, the LED display screen uses the private key to decrypt the block information to obtain the first control command for displaying the image and the address where the image is located. The LED display starts to download the target image from the server and display it. In this implementation manner, the content distribution apparatus can control the LED display screen to display the target image.

In a possible implementation manner, the content to be published includes a target video and a second control instruction for controlling the LED display screen to play the target video. The content distribution device using the public key of the LED display screen to encrypt the content to be published may be: the content distribution device uses the public key of the LED display screen to encrypt the target video to obtain the encrypted video, and uses the public key of the LED display screen to encrypt the second control instruction Encryption is performed to obtain a second encrypted instruction; the first encrypted information includes an encrypted video and a second encrypted instruction. After receiving the second encrypted information, the server can store the encrypted video, write the storage address of the encrypted video and the second encrypted instruction into the block chain, and broadcast the block information. After receiving the block information, the LED display screen uses the private key to decrypt the block information to obtain the second control command for displaying the image and the address where the video is located. The LED display starts to download the target video from the server and play it. In this implementation, the content distribution device can control the LED display screen to play the target video.

In the embodiment of the present application, the content distribution apparatus uses the public key of the LED display screen to encrypt the content to be published, which can ensure the security of the content to be published. The content distribution device sends the second encrypted information to the server, so that the server uploads it to the blockchain, so that the LED display screen obtains the content to be published from the blockchain. It can be seen that the content publishing device can efficiently publish content through the LED display with the help of blockchain technology, realize the remote management of the LED display, and realize large-scale operation.

FIG. 4 is a flowchart of another content publishing method provided by an embodiment of the present application. FIG. 4 is a flowchart of a content distribution method executed by a content distribution apparatus. As shown in Figure 4, the method includes:

401. The server receives the second encrypted information from the content distribution apparatus.

The method in FIG. 4 is applied to a content distribution system including a content distribution device, a server and an LED display screen. The second encrypted information is obtained by encrypting the content to be published by the content distribution device using the public key of the LED display screen. The to-be-published content includes instructions to be executed by the LED display screen.

402. The server writes the target information into the blockchain.

The target information is obtained based on the second encrypted information. In this application, the server in the blockchain uses a consensus algorithm to generate blocks to ensure that only correct data can be written to the blockchain. This keeps the data safe.

In a possible implementation, the second encrypted information includes an encrypted image and a first encrypted instruction. The encrypted image is obtained by encrypting the target image included in the content to be published by using the public key of the LED display screen. The first encryption instruction is obtained by encrypting the first control instruction included in the content to be published and used to control the LED display screen to display the target image by using the public key of the LED display screen. A possible implementation of step 402 is as follows: the server stores the encrypted image, and writes the first address information and the first encrypted instruction into the blockchain. The first address information indicates a storage address of the encrypted image.

In a possible implementation, the second encrypted information includes encrypted video and second encrypted instructions. The encrypted video is obtained by encrypting the target video included in the content to be published by using the public key of the LED display screen. The second encryption instruction is obtained by encrypting the second control instruction included in the to-be-published content for controlling the LED display screen to play the target video by using the public key of the LED display screen. A possible implementation manner of step 402 is as follows: the server stores the encrypted video, and writes the second address information and the second encrypted instruction into the blockchain. The second address information indicates a storage address of the encrypted video. The first encrypted information includes the second encrypted instruction and a second encrypted address. The second encrypted address is obtained by encrypting the second address information with the public key of the LED display screen.

In a possible implementation manner, the second encrypted information includes a third encrypted instruction. The third encryption instruction is obtained by encrypting the third control instruction included in the content to be published by using the public key of the LED display screen. A possible implementation manner of step 402 is as follows: the server writes the third encrypted instruction into the blockchain.

403. The server broadcasts the first encrypted information.

The first encrypted information is used for the LED display screen to obtain the to-be-published information, and the first encrypted information is block information. The server broadcasting the first encrypted information can make other servers in the blockchain update the block information synchronously, and can also make the LED display screen receive the first encrypted information.

In some embodiments, the implementation of step 402 is as follows: the server stores the encrypted image, and writes the first address information and the first encrypted instruction into the blockchain. The first encrypted information includes the first encrypted instruction and the first encrypted address. The first encrypted address is obtained by encrypting the first address information with the public key of the LED display screen.

In some embodiments, the implementation of step 402 is: the server stores the encrypted video, and writes the second address information and the second encrypted instruction into the blockchain. The first encrypted information includes the second encrypted instruction and a second encrypted address. The second encrypted address is obtained by encrypting the second address information with the public key of the LED display screen.

In some embodiments, the implementation of step 402 is: the server writes the third encrypted instruction into the blockchain. The first encrypted information includes the third encrypted instruction.

In a possible implementation manner, the server may also perform the following operations: the server receives the status information from the LED display screen; the server writes the status information of the LED display screen into the blockchain. In this implementation, the server writes the status information of the LED display screen into the blockchain, so that the content publishing device or other nodes can conveniently query the status information of the LED display screen.

FIG. 5 is a flowchart of another content publishing method provided by an embodiment of the present application. FIG. 5 is a flowchart of a content distribution method executed by a content distribution apparatus. As shown in Figure 5, the method includes:

501. The LED display screen receives the first encrypted information broadcast by the server.

The first encrypted information is block information. The method in FIG. 5 is applied to a content distribution system including a content distribution device, a server and an LED display screen.

502. The LED display screen obtains the content to be published according to the first encrypted information and the private key of the LED display screen.

The to-be-published content includes target instructions to be executed by the LED display screen.

In a possible implementation manner, the first encrypted information includes a first encrypted instruction and a first encrypted address. A possible implementation of step 502 is as follows: the LED display screen uses the private key of the LED display screen to decrypt the first encrypted command to obtain the first control command, and decrypt the first encrypted address to obtain the first address information; LED display The screen obtains the target image according to the first address information and the private key of the LED display screen. The target image is included in the to-be-published content. The first control command is the target command to be executed by the LED display screen. The LED display screen obtains the target image according to the first address information and the private key of the LED display screen: the LED display screen obtains the encrypted image from the server according to the first address information; decrypts the encrypted image using the private key of the LED display screen image to get the target image.

In a possible implementation manner, the first encrypted information includes a second encrypted instruction and a second encrypted address. A possible implementation of step 502 is as follows: the LED display screen uses the private key of the LED display screen to decrypt the second encrypted command to obtain the second control command, and decrypt the second encrypted address to obtain the second address information; LED display The screen obtains the target video according to the second address information and the private key of the LED display screen. The target video is included in the to-be-published content. The second control instruction is the target instruction to be executed by the LED display screen. The LED display screen obtains the target video according to the second address information and the private key of the LED display screen: the LED display screen obtains the encrypted video from the server according to the second address information; decrypts the encrypted video using the private key of the LED display screen , get the target video. The target video is included in the to-be-published content.

In a possible implementation manner, the first encrypted information includes a third encrypted instruction. A possible implementation manner of step 502 is as follows: the LED display screen uses the private key of the LED display screen to decrypt the third encrypted instruction to obtain the third control instruction. The third control instruction is the target instruction.

503. The LED display screen executes the target instruction.

In a possible implementation manner, the LED display screen can also perform the following operations: the LED display screen uploads the status information of the LED display screen to the blockchain; or, the LED display screen sends the LED display screen to the content publishing device status information on the screen. In this implementation, the LED display screen can upload its status information to the blockchain in time or feed it back to the content publishing device.

FIG. 3 to FIG. 5 sequentially describe the content distribution method flow performed by the content distribution device, the server and the LED display screen. The following describes the complete content publishing interaction process realized by the content publishing device, the server and the LED display screen with reference to the accompanying drawings.

FIG. 6 is an interaction flowchart of a content publishing method provided by an embodiment of the present application. As shown in Figure 6, the method includes:

601. The content distribution device encrypts the content to be distributed by using the public key of the LED display screen to obtain second encrypted information.

602. The content distribution apparatus sends the second encrypted information to the server.

603. The server writes the target information into the blockchain.

The target information is obtained based on the second encrypted information. The implementation manner of step 603 may be the same as that of step 402 .

604. The server broadcasts the first encrypted information.

The first encrypted information is used for the LED display to obtain the to-be-published information. The first encrypted information is block information. The implementation of step 604 may be the same as that of step 403 . After receiving the first encrypted information, other servers in the blockchain can update the block information.

605. The LED display screen obtains the content to be published according to the first encrypted information and the private key of the LED display screen.

The implementation of step 605 may be the same as that of step 502 . The to-be-published content includes target instructions to be executed by the LED display screen.

606. The LED display screen executes the target instruction.

An example of the interaction process in FIG. 6 is as follows: Content distribution device A needs LED display B to display a picture, and content distribution device A uses the public key of LED display B to encrypt the image and the control command at the same time, and then send it to Server C (corresponding to step 602). The server C first puts the encrypted picture into the storage space, then writes the storage address and control command of the encrypted picture into the blockchain (corresponding to step 603 ), and broadcasts it (corresponding to step 604 ). After receiving the block information (that is, the block information broadcast by the server C), the LED display B uses the private key to decrypt the block information, and obtains the control command for playing the picture and the address where the picture is located. The LED display starts to download pictures from the server and display them.

Another example of the interaction process in FIG. 6 is as follows: Content distribution device A needs LED display B to play a video (eg, an advertisement), and content distribution device A uses the public key of LED display B to simultaneously execute the video and control commands on the video. Encrypted and then sent to server C (corresponding to step 602). The server C first stores the encrypted video in the storage space, then writes the storage address and control command of the encrypted video into the blockchain (corresponding to step 603 ), and broadcasts it (corresponding to step 604 ). After receiving the block information (that is, the block information broadcast by the server C), the LED display screen B uses the private key to decrypt the block information, and obtains the control command for playing the video and the address where the video is located. The LED display starts to download the video from the server and display it.

In the embodiment of the present application, data transmission is implemented by using a P2P network, which can reduce the bandwidth requirements of the server. The main job of the server is to maintain the blockchain, and it does not need to care about the specific working status of the LED display, so it can reduce the performance requirements of the server. The entire content publishing system is built on the blockchain, which can ensure the security of the entire system data. The content publishing system based on the blockchain technology provided by this application can reduce the system's requirements on the server and improve the security of the system. At the same time, the content publishing process can be greatly simplified.

FIG. 7 is a schematic structural diagram of a content publishing apparatus according to an embodiment of the present application. As shown in Figure 7, the content distribution device includes:

The processing unit 701 is used for encrypting the content to be published using the public key of the LED display screen to obtain second encrypted information; the content to be published includes the instruction to be executed by the LED display screen;

The transceiver unit 702 is configured to send the second encrypted information to the server; at least part of the information in the second encrypted information is used to be written into the blockchain by the server.

In a possible implementation manner, the transceiver unit 702 is specifically configured to send the second encrypted information to the server through a peer-to-peer network.

In a possible implementation manner, the transceiver unit 702 is specifically configured to send the second encrypted information to the server through a first node, where the first node is a node in the peer-to-peer network, and the first node is the content The most active node among two or more nodes adjacent to the distribution device or the node closest to the content distribution device.

In a possible implementation manner, the processing unit 701 is further configured to query the status information of the LED display screen by communicating with the LED display screen; or, the processing unit 701 is further configured to query the LED display screen from the blockchain status information on the screen.

FIG. 8 is a schematic structural diagram of a server according to an embodiment of the present application. As shown in Figure 8, the server includes:

A transceiver unit 801 is used to receive second encrypted information from a content distribution device; the second encrypted information is obtained by the content distribution device using the public key of the LED display to encrypt the content to be released, and the content to be released includes the LED display instructions to be executed;

a processing unit 802, for writing target information into the blockchain; the target information is obtained based on the second encrypted information;

The transceiver unit 801 is further configured to broadcast first encrypted information, where the first encrypted information is used for the LED display screen to obtain the information to be published, and the first encrypted information is block information.

In a possible implementation manner, the second encrypted information includes an encrypted image and a first encrypted instruction, the encrypted image is obtained by encrypting a target image included in the content to be published by using the public key of the LED display screen, and the first encrypted instruction uses The public key of the LED display screen is obtained by encrypting the first control instruction included in the to-be-published content for controlling the LED display screen to display the target image;

The processing unit 802 is further configured to store the encrypted image to the storage device of the server;

The processing unit 802 is specifically configured to write the first address information and the first encrypted instruction into the blockchain; the first address information indicates the storage address of the encrypted image, and the first encrypted information includes the first encrypted instruction and the first encrypted image. an encrypted address; the first encrypted address is obtained by encrypting the first address information with the public key of the LED display screen.

In a possible implementation manner, the second encrypted information includes an encrypted video and a second encrypted instruction, the encrypted video is obtained by encrypting the target video included in the content to be published by using the public key of the LED display screen, and the second encrypted instruction uses The public key of the LED display screen is obtained by encrypting the second control instruction included in the to-be-published content for controlling the LED display screen to play the target video;

The processing unit 802 is further configured to store the encrypted video to the storage device of the server;

The processing unit 802 is specifically configured to write the second address information and the second encrypted instruction into the blockchain; the second address information indicates the storage address of the encrypted video, and the first encrypted information includes the second encrypted instruction and the first encrypted video. Two encrypted addresses; the second encrypted addresses are obtained by encrypting the second address information with the public key of the LED display screen.

In a possible implementation manner, the transceiver unit 801 is further configured to receive status information from the LED display screen; the processing unit 802 is further configured to write the status information of the LED display screen into the blockchain.

FIG. 9 is a schematic structural diagram of an LED display screen provided by an embodiment of the present application. As shown in Figure 9, the LED display includes:

The transceiver unit 901 is used to receive the first encrypted information broadcast by the server; the first encrypted information is block information;

The processing unit 902 is configured to obtain the content to be published according to the first encrypted information and the private key of the LED display screen; the content to be published includes the target instruction to be executed by the LED display screen;

The processing unit 902 is further configured to execute the target instruction.

In a possible implementation, the first encrypted information includes a first encrypted instruction and a first encrypted address;

The processing unit 902 is specifically configured to use the private key of the LED display screen to decrypt the first encrypted command to obtain the first control command, and to decrypt the first encrypted address to obtain the first address information; according to the first address information and the The private key of the LED display screen obtains the target image; the target image is included in the to-be-published content; the target image is displayed according to the first control instruction; the first control instruction is the target instruction.

In a possible implementation, the first encrypted information includes a second encrypted instruction and a second encrypted address;

The processing unit 902 is specifically configured to use the private key of the LED display to decrypt the second encrypted command to obtain the second control command, and decrypt the second encrypted address to obtain the second address information; according to the second address information and the The private key of the LED display screen is used to obtain the target video; the target video is included in the to-be-published content; the target video is played according to the second control instruction; the second control instruction is the target instruction.

In a possible implementation, the first encrypted information includes a third encrypted instruction;

The processing unit 902 is specifically configured to decrypt the third encrypted instruction using the private key of the LED display screen to obtain a third control instruction; the third control instruction is the target instruction.

In a possible implementation manner, the transceiver unit 901 is further configured to upload the status information of the LED display screen to the blockchain; or, the transceiver unit 901 is further configured to send the status information of the LED display screen to the content publishing device information.

It should be understood that the above division of each unit of the content publishing device, server and LED display screen is only a division of logical functions, and in actual implementation, it can be fully or partially integrated into a physical entity, or can be physically separated. For example, each of the above units may be separately established processing elements, or may be integrated into the same chip. In addition, the program code can also be stored in the storage element of the controller, and the functions of the above units can be called and executed by a certain processing element of the processor. In addition, each unit can be integrated together, or can be implemented independently. The processing element here may be an integrated circuit chip with signal processing capability. In the implementation process, each step of the method or each of the above units may be completed by an integrated logic circuit of hardware in a processor element or an instruction in the form of software. The processing element may be a general-purpose processor, such as a central processing unit (CPU), or one or more integrated circuits configured to implement the above methods, such as one or more specific integrated circuits (application- specific integrated circuit, ASIC), or, one or more microprocessors (digital signal processor, DSP), or, or, one or more field-programmable gate arrays (field-programmable gate array, FPGA), etc.

FIG. 10 is a schematic structural diagram of another content distribution apparatus provided by an embodiment of the present application. As shown in FIG. 10, the content distribution apparatus 100 includes a processor 1001, a memory 1002 and a communication interface 1003; the processor 1001, the memory 1002 and the communication interface 1003 are connected to each other through a bus. The content distribution apparatus in FIG. 10 may be the content distribution apparatus in the foregoing embodiment.

The memory 1002 includes, but is not limited to, random access memory (RAM), read-only memory (ROM), erasable programmable read only memory (EPROM), or portable Read-only memory (compact disc read-only memory, CDROM), the memory 1002 is used for related instructions and data. The communication interface 1003 is used to receive and transmit data. The communication interface 1003 can realize the function of the transceiver unit 702 in FIG. 7 .

The processor 1001 may be one or more CPUs, and if the processor 1001 is one CPU, the CPU may be a single-core CPU or a multi-core CPU. The steps performed by the content distribution apparatus in the foregoing embodiments may be based on the structure of the content distribution apparatus shown in FIG. 10 . Specifically, the processor 1001 can implement the functions of the processing unit 701 in FIG. 7 .

FIG. 11 is a schematic structural diagram of a server according to an embodiment of the present invention. The server 1100 may vary greatly due to different configurations or performance, and may include one or more central processing units (CPU) 1122 (for example, , one or more processors) and memory 1132, one or more storage media 1130 (eg, one or more mass storage devices) that store applications 1142 or data 1144. Among them, the memory 1132 and the storage medium 1130 may be short-term storage or persistent storage. The program stored in the storage medium 1130 may include one or more modules (not shown in the figure), and each module may include a series of instruction operations on the server. Furthermore, the central processing unit 1122 may be configured to communicate with the storage medium 1130 to execute a series of instruction operations in the storage medium 1130 on the server 1100 . The server 1100 may be a server provided by this application.

Server 1100 may also include one or more power supplies 1126, one or more wired or wireless network interfaces 1150, one or more input-output interfaces 1158, and/or, one or more operating systems 1141, such as Windows Server™, Mac OS XTM, UnixTM, LinuxTM, FreeBSDTM and so on.

The steps performed by the server in the above embodiment may be based on the server structure shown in FIG. 11 . Specifically, the central processing unit 1122 may implement the functions of the processing unit 802 in FIG. 8 , and the wired or wireless network interface 1150 (or the input/output interface 1158 ) may implement the functions of the transceiver unit 801 in FIG. 8 .

An embodiment of the present application provides a computer-readable storage medium, where a computer program is stored in the computer-readable storage medium, and when the computer program is executed by a processor, implements the content publishing method provided in the foregoing embodiments.

The embodiments of the present application provide a computer program product including instructions, which, when run on a computer, cause the computer to execute the content publishing method provided by the foregoing embodiments.

Embodiments of the present application provide a content distribution system, including a content distribution device, a server, and an LED display screen. The content distribution apparatus may execute the method flow shown in FIG. 3 , and the server may execute the method flow shown in FIG. 4 . The LED display screen can execute the method flow shown in FIG. 5 .

The above are only specific embodiments of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of various equivalents within the technical scope disclosed in the present application. Modifications or substitutions shall be covered by the protection scope of this application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

A content publishing method, comprising:

The LED display screen receives the first encrypted information broadcast by the server; the first encrypted information is block information;

The LED display screen obtains the content to be published according to the first encrypted information and the private key of the LED display screen; the content to be published includes the target instruction to be executed by the LED display screen;

The LED display screen executes the target instruction.
The method according to claim 1, wherein the first encrypted information includes a first encrypted instruction and a first encrypted address; the LED display screen is based on the first encrypted information and the private information of the LED display screen. The key to obtain the content to be published includes:

The LED display screen uses the private key of the LED display screen to decrypt the first encrypted command to obtain the first control command, and decrypt the first encrypted address to obtain the first address information;

The LED display screen obtains a target image according to the first address information and the private key of the LED display screen; the target image is included in the to-be-published content;

The LED display screen executes the target instruction including:

The LED display screen displays the target image according to the first control instruction; the first control instruction is the target instruction.
The method according to claim 1, wherein the first encrypted information includes a second encrypted instruction and a second encrypted address; the LED display screen is based on the first encrypted information and the private information of the LED display screen. The key to obtain the content to be published includes:

The LED display screen uses the private key of the LED display screen to decrypt the second encrypted command to obtain the second control command, and decrypt the second encrypted address to obtain the second address information;

The LED display screen obtains a target video according to the second address information and the private key of the LED display screen; the target video is included in the to-be-published content;

The LED display screen executes the target instruction including:

The LED display screen plays the target video according to the second control instruction; the second control instruction is the target instruction.
The method according to claim 1, wherein the first encrypted information includes a third encrypted instruction; the LED display screen obtains the information to be released according to the first encrypted information and the private key of the LED display screen content include:

The LED display screen uses the private key of the LED display screen to decrypt the third encrypted command to obtain a third control command; the third control command is the target command.
The method according to any one of claims 1 to 4, wherein the method further comprises:

The LED display screen uploads the status information of the LED display screen to the blockchain;

Or, the LED display screen sends status information of the LED display screen to the content publishing apparatus.
An LED display screen, comprising:

a transceiver unit for receiving the first encrypted information broadcast by the server; the first encrypted information is block information;

a processing unit, configured to obtain the content to be published according to the first encrypted information and the private key of the LED display screen; the content to be published includes the target instruction to be executed by the LED display screen;

The processing unit is further configured to execute the target instruction.
The LED display screen according to claim 6, wherein the first encrypted information comprises a first encrypted instruction and a first encrypted address;

The processing unit is specifically configured to decrypt the first encrypted command using the private key of the LED display screen to obtain the first control command, and decrypt the first encrypted address to obtain the first address information; an address information and the private key of the LED display screen to obtain a target image; the target image is included in the content to be published; the LED display screen further includes:

A display unit, configured to display the target image according to the first control instruction; the first control instruction is the target instruction.
The LED display screen according to claim 6, wherein the first encrypted information comprises a second encrypted command and a second encrypted address;

The processing unit is specifically configured to decrypt the second encrypted command using the private key of the LED display screen to obtain the second control command, and decrypt the second encrypted address to obtain the second address information; Two address information and the private key of the LED display screen to obtain the target video; the target video is included in the to-be-published content; the LED display screen also includes:

A display unit, configured to play the target video according to the second control instruction; the second control instruction is the target instruction.
The LED display screen according to claim 6, wherein the first encrypted information includes a third encryption instruction; the processing unit is specifically configured to decrypt the third encryption using a private key of the LED display screen instruction to obtain a third control instruction; the third control instruction is the target instruction.
The LED display screen according to any one of claims 6 to 9, characterized in that,

The transceiver unit is also used to upload the status information of the LED display screen to the blockchain;

Alternatively, the transceiver unit is further configured to send the status information of the LED display screen to the content publishing apparatus.
An LED display screen, comprising: a processor and a memory;

the memory is used to store computer-executable instructions;

The processor is configured to execute the computer-executed instructions stored in the memory, so that the LED display screen executes the method according to any one of claims 1-5.
A computer-readable storage medium, characterized by comprising the computer-readable storage medium for storing instructions, which, when the instructions are executed, cause the method according to any one of claims 1-5 to be implemented.