CN116112175A

CN116112175A - Service processing method, device and medium of digital twin network based on block chain

Info

Publication number: CN116112175A
Application number: CN202211669586.1A
Authority: CN
Inventors: 王丹石; 张民; 庞玥; 王一迪; 汤明志
Original assignee: Beijing University of Posts and Telecommunications
Current assignee: Beijing University of Posts and Telecommunications
Priority date: 2022-12-23
Filing date: 2022-12-23
Publication date: 2023-05-12

Abstract

The invention provides a business processing method, a device and a medium of a digital twin network based on a block chain, wherein the method comprises the following steps: registering a preset physical entity on a block chain, and collecting first parameter data of the physical entity; based on the first parameter data, generating a mirror image model corresponding to the physical entity by adopting a preset digital twin method, and storing second parameter data of the mirror image model into a block chain; under the condition that a service execution instruction corresponding to a target physical entity is received, acquiring first information required by executing the target service; the target physical entity is a physical entity registered on the blockchain, and the target service corresponds to a service execution instruction; and updating the second parameter data of the mirror image model based on the first information to obtain third parameter data, and updating the third parameter data to the block chain. The embodiment of the invention ensures the safety of the digital twin network in the service processing process through the block chain on the basis of the digital twin network.

Description

Service processing method, device and medium of digital twin network based on block chain

Technical Field

The present invention relates to the field of blockchain technologies, and in particular, to a method, an apparatus, and a medium for processing services in a digital twin network based on blockchains.

Background

The mobile communication technology evolves and evolves towards the sixth generation mobile network (6th generation mobile networks,6G). The 6G landscape includes applications that enable holographic interactions, telemedicine, smart city, industry 4.0, etc., and 6G networks need to provide high reliability, low latency, and high data rates to ensure quality of service, and improve application experience. The ever-emerging network traffic, the ever-expanding network scale, present challenges to planning, construction, operation and maintenance, and optimization of telecommunications networks. Firstly, network operation is more and more complex, the difficulty is greatly increased, an effective simulation, analysis and prediction platform is lacked, and the existing preventive operation and maintenance cannot be changed into predictive operation and maintenance. Second, the network is highly dynamic and applications need to meet highly dynamic and extreme requirements in terms of latency, reliability, data rate, and user requirements. In addition, the network management and optimization operation directly verifies on the existing network with high cost and high risk.

At present, a Digital Twins (DT) technology is introduced into a telecommunication network, the DT creates a virtual model for a physical object in a Digital manner based on historical data and real-time running states, a Digital space and a physical space can be interacted and communicated in real time, real-time sensing data of the physical space is input into the virtual space to dynamically update the state of the physical entity, and the virtual model can generate a result according to application requirements according to various application requirements and feed decisions back to the physical space. The DT can help the telecommunication network to create a comprehensive digital model, thereby realizing intelligent, efficient and accurate network monitoring, prediction and maintenance, and implementing corresponding decisions into the network; DT emphasizes real-time mirroring of physical networks, and can provide tests and decisions for various dynamic scenes; the DT can also provide a virtual test platform for various operations, thereby reducing trial-and-error cost and human errors. The digital twin telecommunication network has the advantages of high dynamic application scene, strict time requirement, low fault tolerance rate and higher requirements on network safety and reliability.

However, the security and reliability of the current digital twin networks is low.

Disclosure of Invention

The invention provides a block chain-based service processing method, a block chain-based service processing device and a block chain-based service processing medium, which are used for solving the problem of low safety and reliability of a digital twin network in the prior art.

The invention provides a business processing method of a digital twin network based on a block chain, which comprises the following steps:

registering a preset physical entity on a block chain, and collecting first parameter data of the physical entity;

generating a mirror image model corresponding to the physical entity by adopting a preset digital twin method based on the first parameter data, and storing second parameter data of the mirror image model into the block chain; the mirror image model is used for synchronously updating second parameter data of the mirror image model according to the physical entity;

under the condition that a service execution instruction corresponding to a target physical entity is received, acquiring first information required by executing the target service; wherein the target physical entity is a physical entity registered on the blockchain, the target service corresponds to the service execution instruction, and the first information includes at least one of the following: data and models required for executing the target service, a method of using a single model, and a method of using a plurality of models;

And updating second parameter data of the mirror image model based on the first information to obtain third parameter data, and updating the third parameter data to the block chain.

According to the service processing method of the digital twin network based on the block chain, the second parameter data of the mirror image model is stored to the block chain, and the method comprises the following steps:

transmitting and storing second parameter data of the mirror image model to a preset out-of-chain memory;

receiving a first hash value from the out-of-chain memory, storing the first hash value to the blockchain; the first hash value is a hash value corresponding to the second parameter data.

According to the method for processing services of the digital twin network based on the blockchain, after the first hash value is received from the out-of-chain memory and stored into the blockchain, the method further comprises:

acquiring the second parameter data from the off-chain memory through the first hash value;

the updating the second parameter data of the mirror model based on the first information to obtain third parameter data, and updating the third parameter data to the blockchain includes:

Updating the second parameter data based on the first information to obtain the third parameter data, and updating the third parameter data to the out-of-chain memory;

receiving a second hash value from the out-of-chain memory, updating the second hash value to the blockchain; the second hash value is a hash value corresponding to the third parameter data.

According to the service processing method of the digital twin network based on the block chain, which is provided by the invention, the extra-chain memory is an interplanetary file system IPFS.

According to the method for processing the service of the digital twin network based on the blockchain, provided by the invention, after the mirror image model corresponding to the physical entity is generated by adopting a preset digital twin method based on the first parameter data, and the second parameter data of the mirror image model is stored in the blockchain, the method further comprises the steps of:

sending subscription requirements to the physical entity;

receiving second information from the physical entity; wherein the second information corresponds to the subscription requirement;

and updating second parameter data of the mirror image model based on the second information to obtain fourth parameter data, and storing the fourth parameter data into the block chain.

According to the method for processing the business of the digital twin network based on the blockchain, which is provided by the invention, after the first information required for executing the target business is acquired under the condition that the business execution instruction corresponding to the target physical entity is received, the method further comprises:

updating fifth parameter data of a preset functional model based on the first information to obtain sixth parameter data, and updating the sixth parameter data to the block chain; the functional model is used for constructing models of different application scenes in the digital twin network through an artificial intelligence algorithm.

The invention also provides a service processing device of the digital twin network based on the block chain, which comprises:

the registration module is used for registering a preset physical entity on the blockchain and collecting first parameter data of the physical entity;

the generation module is used for generating a mirror image model corresponding to the physical entity by adopting a preset digital twin method based on the first parameter data, and storing second parameter data of the mirror image model into the blockchain; the mirror image model is used for synchronously updating second parameter data of the mirror image model according to the physical entity;

The acquisition module is used for acquiring first information required by executing the target service under the condition that a service execution instruction corresponding to the target physical entity is received; wherein the target physical entity is a physical entity registered on the blockchain, the target service corresponds to the service execution instruction, and the first information includes at least one of the following: data and models required for executing the target service, a method of using a single model, and a method of using a plurality of models;

and the processing module is used for updating the second parameter data of the mirror image model based on the first information to obtain third parameter data, and updating the third parameter data to the block chain.

The invention also provides an electronic device comprising a memory, a processor and a computer program stored on the memory and capable of running on the processor, wherein the processor implements the service processing method of the digital twin network based on the block chain when executing the program.

The present invention also provides a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements a method of traffic handling for a blockchain-based digital twin network as described in any of the above.

The invention also provides a computer program product comprising a computer program which when executed by a processor implements a method of service processing for a blockchain-based digital twin network as described in any of the above.

According to the business processing method, the business processing device and the business processing medium for the digital twin network based on the block chain, safety in the business processing process of the digital twin network is guaranteed through the block chain, the block chain can only generate a corresponding mirror image model for the registered physical entity, under the condition that a business execution instruction corresponding to the registered physical entity is received, first information required by a target business corresponding to the business execution instruction is acquired, the mirror image model is updated based on the first information, and updated third parameter data is stored in the block chain, so that safety and reliability of the digital twin network are effectively improved.

Drawings

In order to more clearly illustrate the invention or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a flow chart of a method for processing services of a blockchain-based digital twin network provided by the invention;

FIG. 2 is a schematic diagram of a network architecture of a blockchain-based digital twin network provided by the present invention;

FIG. 3 is one of the signaling interaction diagrams of the method for processing services of the blockchain-based digital twin network provided by the invention;

FIG. 4 is a second signaling diagram of a method for processing services in a blockchain-based digital twin network according to the present invention;

FIG. 5 is a schematic diagram of a block chain based digital twin network service processing apparatus according to the present invention;

fig. 6 is a schematic structural diagram of an electronic device provided by the present invention.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

The invention relates to a service processing method, a device and a medium of a digital twin network based on a block chain, which are described below with reference to the accompanying drawings.

Fig. 1 is a schematic flow chart of a service processing method of a digital twin network based on a blockchain, as shown in fig. 1, the method includes steps 101 to 104; wherein:

step 101, registering a preset physical entity on a block chain, and collecting first parameter data of the physical entity;

102, generating a mirror image model corresponding to the physical entity by adopting a preset digital twin method based on the first parameter data, and storing second parameter data of the mirror image model to the blockchain;

the mirror image model is used for synchronously updating second parameter data of the mirror image model according to the physical entity;

step 103, under the condition that a service execution instruction corresponding to a target physical entity is received, acquiring first information required for executing the target service;

wherein the target physical entity is a physical entity registered on the blockchain, the target service corresponds to the service execution instruction, and the first information includes at least one of the following: data and models required for executing the target service, a method of using a single model, and a method of using a plurality of models;

Alternatively, among the data and the model required for executing the target service, the model may include a model number and a model hash, which may be returned by the off-chain memory storing the parameter data of the model, for acquiring the parameter data of the model from the off-chain memory through the model hash.

Alternatively, the single model may be a mirror model, or a preset functional model; the plurality of models may include a plurality of mirror models and/or functional models.

And 104, updating second parameter data of the mirror image model based on the first information to obtain third parameter data, and updating the third parameter data to the block chain.

In particular, in the related art, the security and reliability of the digital twin network are low.

However, the digital twin telecommunication network has high dynamic application scene, strict time requirement, low fault tolerance and high requirements on network safety and reliability. Ensuring secure operation of a digital twin telecommunications network is a challenging task, with the following challenges:

(1) Security of the data source. The data input to the digital space is critical to DT and thus it is necessary to ensure the reliability of the data source. How to trust the data generation source, preventing the malicious entity from participating is a problem to be considered;

(2) Security of various types of data. The monitoring data, the model data and the feedback data are all important components of the digital twin telecommunication network, wherein the monitoring data influence the authenticity of the model in the digital twin network, the model data influence the effectiveness of decision making, and the feedback data directly act on the network. The minor errors of the three data can influence the accurate and complete modeling, decision-making and feedback of the digital twin telecommunication network, thereby influencing the normal operation of the digital twin telecommunication network. Most of the current systems are centralized, have a single point of failure problem, and cannot safely and tamper-proof realize the storage and access of various data;

(3) And (5) automatization. The digital twin telecommunication network has various service types and complex service flow, and needs to reduce manual errors to the greatest extent so as to realize the automatic operation of the network. Therefore, strict security solutions must be designed to protect the digital twin telecommunications network, otherwise the operator's trust in the digital twin telecommunications network will be destroyed and its full potential cannot be exploited.

In view of the above problems, embodiments of the present invention provide: blockchains are likely to be the most relevant and powerful technique to address many of the security issues of digital twin telecommunication networks. The blockchain has the characteristics of being distributed, tamper-proof and traceable; the blockchain can ensure the identity security of the participating entity through the digital certificate; the distributed account book is shared among all participating entities, and records the transaction and stores data in a safe, unchanged and irrevocable mode; the intelligent contract can create automated business logic supporting automated business execution. The blockchain is introduced into the digital twin network, so that the safety and the credibility of the digital twin telecommunication network can be ensured, and the invariance and the integrity of the digital twin telecommunication network are enhanced.

In the embodiment of the invention, a preset physical entity is registered on a block chain, and first parameter data of the physical entity is acquired;

optionally, the physical entity may upload data and a model carried by the physical entity in factory to the blockchain, and send a transaction including the device number and the device information to register by calling a physical entity registration function, so that the blockchain registers the physical entity, and stores first parameter data of the physical entity to the blockchain; only registered physical entities can upload data, store and retrieve instructions.

After the first parameter data of the physical entity is collected, a preset digital twin method can be adopted to generate a mirror image model corresponding to the physical entity based on the first parameter data, and second parameter data of the mirror image model is stored in a block chain, wherein the mirror image model is stored in the block chain in the form of the second parameter data;

under the condition that a service execution instruction corresponding to a registered target physical entity is received, first information required for executing a target service corresponding to the service execution instruction can be acquired, second parameter data is updated based on the first information, third parameter data is obtained, the third parameter data is updated to a blockchain, and here, it can be understood that a mirror model is trained based on the first information, and the trained mirror model is stored in the blockchain in the form of the third parameter data.

Alternatively, the physical entity may be an infrastructure in a network domain, or may be an end-to-end network or a network domain such as a wireless network, a wired network, an aggregation network, and a core network.

In the service processing method of the digital twin network based on the block chain, on the basis of the digital twin network, the safety of the digital twin network in the service processing process is guaranteed through the block chain, the block chain can only generate a corresponding mirror image model for the registered physical entity, under the condition that a service execution instruction corresponding to the registered physical entity is received, first information required by a target service corresponding to the service execution instruction is acquired, the mirror image model is updated based on the first information, and updated third parameter data is stored in the block chain, so that the safety and reliability of the digital twin network are effectively improved.

Optionally, the implementation of storing the second parameter data of the mirror model to the blockchain may include:

Specifically, the second parameter data of the mirror model may be sent to a preset out-of-chain memory, so as to be stored in the out-of-chain memory, and then after the second parameter data is stored in the out-of-chain memory, the first hash value corresponding to the second parameter data is returned to the blockchain, so that the first hash value is stored in the blockchain; in the case where the second parameter data needs to be acquired, a first hash value may be acquired from the blockchain first to acquire the second parameter data from the off-chain memory through the first hash value.

Optionally, when registering the physical entity on the blockchain, the collected first parameter data of the physical entity may be stored in the out-of-chain memory, and the corresponding hash value may be returned to the blockchain, so that the blockchain stores the corresponding hash value.

In the embodiment of the invention, considering that the time and the cost for storing a large amount of data on the blockchain are both taken into consideration, a preset off-chain memory can be used for storing a large amount of parameter data, and only the hash value corresponding to the parameter data is returned and stored to the blockchain, thereby effectively reducing the data amount, the storage efficiency and the storage cost stored on the blockchain.

Optionally, after the receiving the first hash value from the out-of-chain memory and storing the first hash value to the blockchain, the second parameter data may be acquired from the out-of-chain memory through the first hash value;

The updating the second parameter data of the mirror model based on the first information to obtain third parameter data, and the implementation manner of updating the third parameter data to the blockchain may include:

Specifically, after receiving a first hash value returned by the off-chain memory, storing the first hash value into the blockchain, and then acquiring second parameter data from the off-chain memory through the first hash value;

when the mirror model needs to be trained, the second parameter data can be updated based on the first information to obtain third parameter data, and the third parameter data is updated to an out-of-chain memory;

and then receiving a second hash value corresponding to the third parameter data from the out-of-chain memory, updating the second hash value to the blockchain, and subsequently acquiring the trained third parameter data of the mirror model from the out-of-chain memory through the second hash value.

Alternatively, the off-chain memory may be an interplanetary file system (InterPlanetary File System, IPFS).

It should be noted that, the IPFS is a distributed file system, which implements a storage model based on content addressing, and the distributed architecture of the IPFS can avoid single point failure and resource redundancy; in addition, the IPFS may also provide low latency, high throughput data access.

Optionally, after the image model corresponding to the physical entity is generated by adopting a preset digital twin method based on the first parameter data, second parameter data of the image model is stored in the blockchain, a subscription requirement can be sent to the physical entity;

Specifically, after generating a mirror image model corresponding to the physical entity by adopting a preset digital twin method based on the first parameter data, and storing second parameter data of the mirror image model into the blockchain, the registered physical entity can be sent to a subscription requirement, and second information sent by the physical entity aiming at the subscription requirement is received, so that the mirror image model is trained based on the second information, specifically, the second parameter data of the mirror image model can be updated based on the second information, fourth parameter data is obtained, and the fourth parameter data is stored into the blockchain.

Alternatively, the fourth parameter data may be stored in the off-chain memory, and a hash value corresponding to the fourth parameter data may be returned to the blockchain, and then the fourth parameter data may be acquired from the off-chain memory through the hash value.

Optionally, the model in the digital twin network may include a mirror model and/or a preset functional model; the functional model is used for constructing models of different application scenes in the digital twin network through an artificial intelligence algorithm.

Specifically, the mirror image model is synchronously updated according to the physical entity, the functional model builds models of various application scenes through an artificial intelligent algorithm according to the requirements of operators so as to carry out intelligent analysis and comprehensive decision, and the mirror image model can be continuously updated to provide real-time and accurate network state and data for the functional model.

Optionally, after the first information required for executing the target service is obtained under the condition that the service execution instruction corresponding to the target physical entity is received, fifth parameter data of a preset functional model may be updated based on the first information, so as to obtain sixth parameter data, and the sixth parameter data is updated to the blockchain.

Specifically, after the first information is acquired, the functional model may be updated based on the first information, specifically, the fifth parameter data of the functional model is updated to the sixth parameter data.

Optionally, after training the functional model to obtain sixth parameter data of the functional model, the sixth parameter data may be stored in a preset extra-chain memory (for example, IPFS), and the hash value returned by the extra-chain memory is received and stored in the blockchain.

The following illustrates a service processing method of a digital twin network based on a blockchain provided by the embodiment of the invention.

The service processing method of the digital twin network based on the block chain mainly comprises the following steps: the digital twin network architecture based on block chains and the solution based on intelligent contracts can protect the safe operation of the digital twin network through the following specific matters.

1. Digital twin network architecture based on block chain

FIG. 2 is a schematic diagram of a digital twin network architecture based on a blockchain, provided by the invention, and as shown in FIG. 2, the digital twin network architecture based on the blockchain consists of a physical layer, a data layer, a model layer, an application layer, a blockchain layer and an IPFS layer;

wherein, the physical layer provides data and receives feedback instructions; the data layer preprocesses and stores the acquired data; the model layer comprises a mirror image model with high fidelity, multiple dimensions and dynamic response and a functional model for realizing various services; the application layer calls the model of the model layer to realize intelligent and flexible network management and control; the block chain layer is interacted with the physical layer, the data layer, the model layer and the application layer respectively to realize the support of the security of the digital twin network; the IPFS layer provides out-of-chain storage for data with large data quantity;

1. Physical layer

The data acquisition is required to be carried out on the physical entity, and then the physical entity is mapped to a virtual space; the physical entity of the digital twin network may be an infrastructure in a network domain, or may be an end-to-end network or a network domain such as a wireless network, a wired network, an aggregation network, and a core network. The data acquisition interface transmits data and uploading instructions to the physical layer through a network telemetry technology to acquire the data. The control issuing interface is responsible for feeding back decisions and instructions generated by the model in the digital twin network to the physical entity;

the physical layer includes, for example, an access network, an aggregation network, and a core network.

2. Data layer

The data layer pre-processes and stores the collected data, thereby converting the original data into meaningful information and usable data. In the process, advanced data mining technology is used for processing data, so that complete data is provided for model construction in various digital twin networks;

the data layer comprises functional modules such as data desensitization, data cleaning, data marking, data naming, data normalization, data sampling, data enhancement, data equalization and the like.

3. Model layer

The model layer is divided into a mirror model and a functional model. Synchronously updating the mirror image model according to the physical entity; the functional model builds models of various application scenes through an artificial intelligent algorithm according to the demands of operators to carry out intelligent analysis and comprehensive decision, and the mirror image model is continuously updated to provide real-time and accurate network states and data for the functional model;

The model layer includes, for example, a mirroring model and a functional model, where the mirroring model is divided into a device-level model, a system-level model and a network-level model, and the functional model includes, for example, functional modules such as device fault management, device status monitoring, hardware configuration, performance prediction, device health management, link fault management, differential operation, qoT estimation, power control, capacity enhancement, transmission optimization, traffic prediction, network planning, routing, network topology design, access control, network simulation, and network slicing.

4. Application layer

The application layer may pass the requirements of the application layer to the network layer through the intent issuing interface. The network layer can combine a plurality of mirror image models and functional models for the application layer to call according to the requirements of the application layer through the model call interface, so that the effective application of different scenes is realized;

the application layer comprises, for example, functional modules such as network planning, network management, predictive maintenance, and network deduction.

5. Blockchain layer

The block chain layer is interacted with the physical layer, the data layer, the model layer and the application layer respectively to realize the support of the digital twin network;

the blockchain layer includes, for example, functional modules such as business management, model storage, model management, data storage, data management, instruction management, device management, and the like.

1) Interaction with physical layer

The block chain layer interacts with the physical layer, thereby realizing equipment management and instruction management. Initially, devices and controllers in the network are registered as an authorized entity through a public key and a digital certificate in the blockchain, the digital twin network can only collect data from the authorized entity through the blockchain, and can ensure the safety of instruction information and the accuracy of issuing through the storage and issuing of the blockchain;

2) Interaction with data layer

The block chain layer and the data layer interact, so that data storage and data management can be realized. Modeling data collected from a physical layer and instruction information fed back from the model layer are stored and accessed through a blockchain, so that distributed and safe data storage is realized. In addition, the blockchain can be combined with the intelligent contract to conduct classified data management, so that the data calling efficiency of the model in the next stage is improved;

3) Interaction with model layer

The model layer interacts with the blockchain layer, and model storage and model management can be realized. Models in a digital twin network may be registered on a blockchain to prove the security of their identity, and the blockchain may store model-related information when the models are registered through a smart contract. In addition, the model can be associated with the corresponding service, so that the model can be conveniently called by a later application layer;

4) Interaction with application layer (Automation implementation)

On the one hand, when the blockchain receives the data uploaded by the physical entity, the intelligent contract is triggered to update the corresponding mirror model by using the latest data; on the other hand, the existing network service can be automatically realized through intelligent contracts.

6. Out-of-chain storage layer

Because the blockchain is not suitable for storing a large amount of data, the embodiment of the invention can adopt IPFS to store out-of-chain data for monitoring data and model data generated at high frequency, when the data is stored in the IPFS, the IPFS can generate a hash value for the content as the hash value, and then the generated hash value is stored in the blockchain.

2. Intelligent contract-based solution

By developing intelligent contracts, the embodiment of the invention designs a solution based on a blockchain, and realizes four functions of equipment management, data management, model management and service management. The whole flow can be divided into a mirror image model updating process from bottom to top and a business processing process from top to bottom.

1. Mirror model update

Fig. 3 is one of signaling interaction diagrams of a service processing method of a digital twin network based on a blockchain, provided by the invention, and as shown in fig. 3, the method includes:

Step 301, configuration.

Specifically, the operator administrator first needs to configure DT administrators according to network management and operation requirements, and issues requirements, such as configuring which entities and regional networks need to be mirrored, and updating frequencies of the models, etc. The operator administrator then issues and installs the intelligent contracts written on demand into the blockchain system, i.e., installs the chain code, to initialize the chain code by the blockchain.

Step 302, physical entity registration and query.

Specifically, the physical entity uploads the factory carried data and model of the physical entity to the IPFS, receives the hash value returned by the IPFS, and then, by calling the physical entity registration function, the physical entity sends a transaction of the registration entity containing the equipment number and the equipment information to the blockchain so as to execute consensus by the blockchain and store the information in the ledger. Only registered entities can upload data, store and retrieve instructions. The DT manager may invoke the query function in the chain code to initiate a transaction to the blockchain that queries the entity to obtain the entity information stored to the blockchain.

Step 303, model registration.

Specifically, according to the requirements issued by the operator manager, the DT manager stores the corresponding mirror model and the functional model in the blockchain, and the specific DT manager firstly uploads and stores the model data in the IPFS and receives the hash value returned by the IPFS. The DT manager then initiates a store model transaction to the blockchain through the store model function to perform consensus by the blockchain and store information in the ledger, storing model numbers, model store timestamps, model types, model usage methods, model data hash values, and the like in the blockchain.

Step 304, data storage.

Specifically, the DT manager issues a subscription requirement to the physical entity, performs preprocessing on the collected data, for example, performs data fusion on the collected data, uploads and stores the fused data to the IPFS, and receives a hash value returned by the IPFS. The DT manager then initiates transactions to store the data to perform consensus by the blockchain and store information in ledgers, storing physical entity Identifications (IDs), data hashes, timestamps, etc. to the blockchain.

Step 305, updating the model.

Specifically, the DT manager calls an update model function to update the mirror model at regular time according to the requirement issued by the operator manager, specifically initiates a transaction for updating the model to the blockchain, receives information related to data returned by the blockchain and a hash value thereof, downloads the data from the IPFS by using the hash value, trains the model by using the latest data, uploads the latest model to the IPFS, receives the hash value returned by the IPFS, initiates the transaction for storing the model to the blockchain through a storage model function, executes consensus by the blockchain and stores the information in a ledger, and stores the latest model to the blockchain.

2. Service processing

Fig. 4 is a second signaling interaction diagram of a service processing method of a digital twin network based on blockchain, as shown in fig. 4, where the method includes:

step 401, configuration.

Specifically, an operator administrator configures a DT manager according to service requirements, so that services such as performance prediction, transmission optimization, fault prediction, network topology design and the like are realized.

Step 402, define the business.

Specifically, the DT manager should first associate the service name with the model, data needed to implement the service. Thus, the DT manager sends a transaction defining a service including a model number, a device class, and a model usage method by defining a service function to perform consensus by the blockchain and store information in the ledger.

Step 403, executing the service.

Specifically, when a certain service needs to be executed, a service execution instruction (service requirement) is issued to a DT manager through an operator manager, the DT manager invokes an execution service function by taking a service name as an input parameter, initiates a transaction for executing the service, executes consensus by a blockchain and stores information in a ledger, after the transaction is successfully executed, the DT manager receives hashes of data and models required by the execution service returned by the blockchain, a use method of each model, and a use method matched with a plurality of models (related information of the models and the data and hash values thereof), and the DT manager acquires specific contents from the IPFS according to the hashes and trains the models according to the model use method.

Step 404, updating the model.

Specifically, for the trained model, the DT manager first uploads the model data to the IPFS, receives the corresponding hash value, then invokes the store model function, initiates a transaction to store the model, performs consensus by the blockchain and stores information in the ledger, and updates the model to the blockchain in time.

Step 405, instruction store and query.

Specifically, the DT manager initiates a transaction to store instructions to perform consensus by the blockchain and store information in the ledger, store physical entity IDs and decision instructions in the blockchain, and inform the physical entity of query instructions. The physical entity may initiate a transaction that queries for instructions, fetching instructions from the blockchain. The input physical entity ID invokes the read instruction function and the smart contract checks if the physical entity has instructions to execute and if so returns instructions.

The main protection content of the embodiment of the invention has the following two points:

1. digital twin network architecture based on block chain

In the digital twin network as background, a framework suitable for the digital twin network and performing security management on the digital twin network based on block chain is provided. Wherein, the physical layer provides data to accept the feedback instruction; the data layer preprocesses and stores the acquired data; the model layer is a mirror model with high fidelity, multiple dimensions and dynamic response, and a functional model for realizing various services; the application layer calls the model layer to realize intelligent and flexible network management and control; the block chain layer is interacted with the physical layer, the data layer, the model layer and the application layer respectively to realize the support of the security of the digital twin network; the IPFS layer provides off-chain storage for data with large amounts of data.

2. Scheme based on intelligent contract

An intelligent contract-based solution is designed according to scene requirements to observe, analyze and optimize the digital twin network. The method comprises two main processes, wherein the process of updating the mirror image model comprises five steps: configuration, physical entity registration and query, model registration, data storage and model update; the processing procedure comprises five steps: configuration, definition of services, execution of services, updating of models and instruction storage and reading.

The description of the service processing device of the digital twin network based on the block chain provided by the invention is provided below, and the service processing device of the digital twin network based on the block chain described below and the service processing method of the digital twin network based on the block chain described above can be correspondingly referred to each other.

Fig. 5 is a schematic structural diagram of a service processing device of a digital twin network based on a blockchain, and as shown in fig. 5, a service processing device 500 of a digital twin network based on a blockchain includes:

a registration module 501, configured to register a preset physical entity on a blockchain, and collect first parameter data of the physical entity;

the generating module 502 is configured to generate a mirror model corresponding to the physical entity by using a preset digital twin method based on the first parameter data, and store second parameter data of the mirror model to the blockchain; the mirror image model is used for synchronously updating second parameter data of the mirror image model according to the physical entity;

An obtaining module 503, configured to obtain first information required for executing a target service when receiving a service execution instruction corresponding to a target physical entity; wherein the target physical entity is a physical entity registered on the blockchain, the target service corresponds to the service execution instruction, and the first information includes at least one of the following: data and models required for executing the target service, a method of using a single model, and a method of using a plurality of models;

and a processing module 504, configured to update the second parameter data of the mirror model based on the first information, obtain third parameter data, and update the third parameter data to the blockchain.

In the service processing device of the digital twin network based on the block chain, the safety of the digital twin network in the service processing process is guaranteed through the block chain on the basis of the digital twin network, the block chain can only generate the corresponding mirror image model for the registered physical entity, under the condition that the service execution instruction corresponding to the registered physical entity is received, first information required by the target service corresponding to the service execution instruction is acquired, the mirror image model is updated based on the first information, and updated third parameter data is stored in the block chain, so that the safety and reliability of the digital twin network are effectively improved.

Optionally, the generating module 502 is specifically configured to:

Optionally, the obtaining module 503 is further configured to: acquiring the second parameter data from the off-chain memory through the first hash value;

the processing module 504 is specifically configured to:

Optionally, the off-chain memory is an interplanetary file system IPFS.

Optionally, the processing module 504 is further configured to:

sending subscription requirements to the physical entity;

Optionally, the processing module 504 is further configured to:

Fig. 6 is a schematic structural diagram of an electronic device provided by the present invention, and as shown in fig. 6, the electronic device 600 may include: processor 610, communication interface (Communications Interface) 620, memory 630, and communication bus 640, wherein processor 610, communication interface 620, and memory 630 communicate with each other via communication bus 640. The processor 610 may invoke logic instructions in the memory 630 to perform a method of service processing for a blockchain-based digital twin network, the method comprising:

Further, the logic instructions in the memory 630 may be implemented in the form of software functional units and stored in a computer-readable storage medium when sold or used as a stand-alone product. Based on this understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

In another aspect, the present invention also provides a computer program product, the computer program product including a computer program, the computer program being storable on a non-transitory computer readable storage medium, the computer program, when executed by a processor, being capable of executing the method for processing a block chain based digital twin network service provided by the methods described above, the method comprising:

In yet another aspect, the present invention also provides a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, is implemented to perform a method of processing a block chain based digital twin network service provided by the methods above, the method comprising:

The apparatus embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present invention without undue burden.

From the above description of the embodiments, it will be apparent to those skilled in the art that the embodiments may be implemented by means of software plus necessary general hardware platforms, or of course may be implemented by means of hardware. Based on this understanding, the foregoing technical solution may be embodied essentially or in a part contributing to the prior art in the form of a software product, which may be stored in a computer readable storage medium, such as ROM/RAM, a magnetic disk, an optical disk, etc., including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method described in the respective embodiments or some parts of the embodiments.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for processing services of a digital twin network based on a blockchain, comprising:

2. The method for processing services of a blockchain-based digital twin network of claim 1, wherein storing second parameter data of the mirror model to the blockchain comprises:

3. The method of claim 2, further comprising, after the receiving a first hash value from the off-chain memory, storing the first hash value to the blockchain:

4. A method of processing services in a blockchain-based digital twin network as defined in claim 3, wherein the out-of-chain memory is an interplanetary file system IPFS.

5. The method for processing services of a blockchain-based digital twin network according to claim 1, wherein after the generating a mirror model corresponding to the physical entity by using a preset digital twin method based on the first parameter data, storing second parameter data of the mirror model in the blockchain, the method further comprises:

sending subscription requirements to the physical entity;

6. The method for processing services of a blockchain-based digital twin network according to any of claims 1 to 5, wherein after obtaining the first information required for executing the target service in the case of receiving a service execution instruction corresponding to the target physical entity, the method further comprises:

7. A block chain based service processing device of a digital twin network, comprising:

8. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements a method of traffic handling for a blockchain-based digital twin network as defined in any of claims 1 to 6 when the program is executed by the processor.

9. A non-transitory computer readable storage medium having stored thereon a computer program, which when executed by a processor implements a method of traffic handling for a blockchain-based digital twin network as defined in any of claims 1 to 6.

10. A computer program product comprising a computer program which, when executed by a processor, implements a method of traffic handling for a blockchain-based digital twin network as defined in any of claims 1 to 6.