WO2021114406A1

WO2021114406A1 - Blockchain-based vaccine information monitoring method and apparatus, and computer device

Info

Publication number: WO2021114406A1
Application number: PCT/CN2019/128749
Authority: WO
Inventors: 陈飞; 肖哲
Original assignee: 深圳大学
Priority date: 2019-12-12
Filing date: 2019-12-26
Publication date: 2021-06-17
Also published as: CN111031036B; CN111031036A

Abstract

A blockchain-based vaccine information monitoring method and apparatus, a computer device, and a storage medium, for providing data storage, management, tracing, verification, and non-repudiation services for key data in the production, sales, transportation, and supervision links of a vaccine supply chain by means of the blockchain storing a summary of data uploaded by blockchain nodes. The blockchain provides a globally unique and unmodifiable ledger capable of ensuring the security of vaccine circulation data; and the smart contract mechanism provided by the blockchain can ensure the traceability, non-repudiation, and timeliness of the vaccine circulation process, and can be used as electronic evidence when a security incident occurs.

Description

Vaccine information monitoring method, device and computer equipment based on blockchain

This application is based on the Chinese patent application with the application number 201911274734.8 and the filing date on December 12, 2019, and claims its priority. The entire content of this application is hereby incorporated into this application as a whole.

Technical field

This application relates to the technical field of functional testing, and in particular to a method, device, computer equipment, and storage medium for monitoring vaccine information based on blockchain.

Background technique

In recent years, vaccine safety incidents have occurred frequently. The important reason is that there are potential safety hazards in the vaccine supply chain: the circulation process of vaccines involves multiple parties, the information is not transparent, the supervision process has not been strictly implemented, and the management needs to be improved.

At present, the regulatory authorities have tried to use information technology to ensure the safety of the vaccine supply chain. The use of information technology not only reduces the impact of human factors on the vaccine circulation process, but also improves the traceability of vaccine circulation to a certain extent. However, the current use of information technology is mainly based on traditional information management systems, and data is scattered among multiple independent systems, and there is a risk of being tampered with and deleted; when a vaccine accident occurs, the reliability, undeniability, and timeliness of traceability It is still a problem to be solved.

Application content

The embodiments of this application provide a method, device, computer equipment and storage medium for vaccine information monitoring based on blockchain, aiming to solve the problem that the information of the vaccine circulation process in the prior art is dispersed in multiple independent systems. The risk of tampering and deletion makes it difficult to inquire about the source of the problem.

In the first aspect, an embodiment of the present application provides a method for monitoring vaccine information based on a blockchain, which includes:

Determine whether a data summary uploaded by a blockchain node is detected; wherein, the blockchain node includes a first type of blockchain node, a second type of blockchain node, a third type of blockchain node, and a fourth type of area Blockchain nodes, fifth-type blockchain nodes; the first-type blockchain nodes are vaccine manufacturers’ equipment blockchain nodes, and the second-type blockchain nodes are regulatory agency equipment blockchain nodes, so The third type of block chain node is the CDC equipment block chain node, the fourth type of block chain node is the vaccination unit equipment block chain node, and the fifth type of block chain node is the vaccine transportation data Collect device blockchain nodes;

If the first data summary uploaded by any one of the first type blockchain nodes is detected, call the pre-stored first smart contract, second smart contract, third smart contract and/or fourth smart contract to compare the first The data digest is verified. If the first data digest is verified by the second smart contract, the third smart contract, and/or the fourth smart contract, the block is constructed by the first leader blockchain node elected by the consensus algorithm To store the first data summary, update the corresponding block on each blockchain node to obtain the updated blockchain;

If the second data summary uploaded by any second type blockchain node is detected, call the pre-stored first smart contract and/or fourth smart contract to verify the second data summary, if the second The data summary is verified by the first smart contract and/or the fourth smart contract, and the second leading blockchain node elected by the consensus algorithm is used to construct a block to store the second data summary. The corresponding block is updated to get the updated block chain;

If the third data summary uploaded by any third type blockchain node is detected, call the pre-stored second smart contract, third smart contract and/or fourth smart contract to verify the third data summary, If the third data summary passes the verification of the second smart contract, the third smart contract, and/or the fourth smart contract, a block is constructed by the third leader blockchain node elected by the consensus algorithm to summarize the third data Perform storage and update the corresponding blocks on each blockchain node to obtain the updated blockchain; and

If the fourth data summary uploaded by any fourth type blockchain node is detected, call the pre-stored third smart contract and/or fourth smart contract to verify the fourth data summary. The data summary is verified by the third smart contract and/or the fourth smart contract, and the fourth leader blockchain node elected by the consensus algorithm is used to construct a block to store the fourth data summary. The corresponding block is updated to get the updated block chain.

In the second aspect, an embodiment of the present application provides a vaccine information monitoring device based on a blockchain, which includes:

The data summary receiving unit is used to determine whether a data summary uploaded by a blockchain node is detected; wherein the blockchain node includes a first type of blockchain node, a second type of blockchain node, and a third type of block Chain nodes, fourth type blockchain nodes, fifth type blockchain nodes; the first type blockchain node is a vaccine manufacturer equipment blockchain node, and the second type blockchain node is a regulatory agency Device blockchain node, the third type blockchain node is the CDC device blockchain node, the fourth type blockchain node is the vaccination unit device blockchain node, the fifth type area The block chain node is the block chain node of the vaccine transportation data collection equipment;

The first-type storage unit is used to call the pre-stored first smart contract, second smart contract, third smart contract and/or fourth smart contract if the first data summary uploaded by any first-type blockchain node is detected The smart contract verifies the first data summary. If the first data summary passes, the second smart contract, the third smart contract, and/or the fourth smart contract are verified, the first data summary elected by the consensus algorithm is passed. Lead the blockchain node to construct a block to store the first data summary, and update the corresponding block on each blockchain node to obtain the updated blockchain;

The second type storage unit is used to call the pre-stored first smart contract and/or fourth smart contract to summarize the second data if the second data summary uploaded by any second type blockchain node is detected Perform verification. If the second data digest passes the verification of the first smart contract and/or the fourth smart contract, the second leader blockchain node elected by the consensus algorithm builds a block to store the second data digest , Update the corresponding block on each blockchain node to get the updated blockchain;

The third type storage unit is used to call the pre-stored second smart contract, third smart contract and/or fourth smart contract to check the third data summary uploaded by any third-type blockchain node. The third data summary is verified. If the third data summary is verified by the second smart contract, the third smart contract, and/or the fourth smart contract, it is constructed by the third leader blockchain node elected by the consensus algorithm The block stores the third data summary, and updates the corresponding blocks on each block chain node to obtain the updated block chain; and

The fourth type storage unit is used to call the pre-stored third smart contract and/or fourth smart contract to summarize the fourth data if the fourth data summary uploaded by any fourth type blockchain node is detected Perform verification. If the fourth data summary passes the verification of the third smart contract and/or the fourth smart contract, the fourth leader blockchain node elected by the consensus algorithm builds a block to store the fourth data summary , Update the corresponding block on each block chain node to get the updated block chain.

In a third aspect, an embodiment of the present application provides a computer device, which includes a memory, a processor, and a computer program stored on the memory and running on the processor, and the processor executes the computer The program implements the blockchain-based vaccine information monitoring method described in the first aspect above.

In a fourth aspect, an embodiment of the present application also provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the processor executes the above-mentioned first On the one hand, the blockchain-based vaccine information monitoring method.

The embodiments of the application provide a method, device, computer equipment and storage medium for monitoring vaccine information based on blockchain, which realize the provision of data for key data in the production, sales, transportation, and supervision of the vaccine supply chain through the blockchain. Storage, management, traceability, verification, non-repudiation and other services. Moreover, the blockchain provides a globally unique and unmodifiable ledger, which can ensure the security of vaccine circulation data; the smart contract mechanism provided by the blockchain can ensure the traceability, non-repudiation, and timeliness of the vaccine circulation process. It can be used as electronic evidence when an accident occurs.

Description of the drawings

In order to explain the technical solutions of the embodiments of the present application more clearly, the following will briefly introduce the drawings used in the description of the embodiments. Obviously, the drawings in the following description are some embodiments of the present application. Ordinary technicians can obtain other drawings based on these drawings without creative work.

FIG. 1 is a schematic diagram of an application scenario of a vaccine information monitoring method based on a blockchain provided by an embodiment of the application;

FIG. 2 is a schematic flowchart of a method for monitoring vaccine information based on a blockchain provided by an embodiment of the application;

FIG. 3 is a schematic block diagram of a vaccine information monitoring device based on a blockchain provided by an embodiment of the application;

Fig. 4 is a schematic block diagram of a computer device provided by an embodiment of the application.

Detailed ways

The technical solutions in the embodiments of the present application will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of them. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of this application.

It should be understood that when used in this specification and appended claims, the terms "including" and "including" indicate the existence of the described features, wholes, steps, operations, elements and/or components, but do not exclude one or The existence or addition of multiple other features, wholes, steps, operations, elements, components, and/or collections thereof.

It should also be understood that the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit the application. As used in the specification of this application and the appended claims, unless the context clearly indicates other circumstances, the singular forms "a", "an" and "the" are intended to include plural forms.

It should be further understood that the term "and/or" used in the specification and appended claims of this application refers to any combination of one or more of the items listed in the associated and all possible combinations, and includes these combinations .

Please refer to Figure 1 and Figure 2. Figure 1 is a schematic diagram of the application scenario of the blockchain-based vaccine information monitoring method provided by an embodiment of the application; Figure 2 is a schematic diagram of the blockchain-based vaccine information monitoring method provided by an embodiment of the application Schematic diagram of the process. The method for monitoring vaccine information based on the blockchain is applied to any blockchain node, and the method is executed by the application software installed in the blockchain node.

As shown in Figure 2, the method includes steps S110 to S150.

S110. Determine whether a data summary uploaded by a blockchain node is detected; wherein, the blockchain node includes a first type of blockchain node, a second type of blockchain node, a third type of blockchain node, and a fourth type of blockchain node. Type block chain node, fifth type block chain node; the first type block chain node is a vaccine manufacturer equipment block chain node, and the second type block chain node is a regulatory agency equipment block chain node , The third type of blockchain node is an equipment blockchain node of the Center for Disease Control and Prevention, the fourth type of blockchain node is a vaccination unit equipment blockchain node, and the fifth type of blockchain node is a vaccine Blockchain node of transportation data collection equipment.

In this embodiment, as shown in Figure 1, the blockchain network is composed of multiple blockchain nodes (for example, blockchain node 1-blockchain node N in Figure 1), and each blockchain node corresponds to A blockchain device, the blockchain is the first type of blockchain node, the second type of blockchain node, the third type of blockchain node, the fourth type of blockchain node, and the fifth type of blockchain node. Kind of. More specifically, the first type of blockchain node is a vaccine manufacturer equipment blockchain node, the second type of blockchain node is a regulatory agency equipment blockchain node, and the third type of blockchain node It is an equipment block chain node of the Center for Disease Control and Prevention, the fourth type of block chain node is a vaccination unit equipment block chain node, and the fifth type of block chain node is a vaccine transportation data collection equipment block chain node.

Among them, the first type of blockchain node can be used as a blockchain node, but can also be used to upload vaccine production data review node data, vaccine production tagging node data, vaccine delivery label update node data, and data summaries corresponding to these data. .

In addition to being a blockchain node, the second-type blockchain node can also be used to upload a data summary corresponding to the data of the vaccine approval node.

In addition to being a blockchain node, the third type of blockchain node can also be used to upload vaccine entry tag update node data, vaccine secondary delivery tag update node data, and vaccine adverse reaction monitoring data secondary upload node data. The data summary corresponding to the data.

In addition to being used as a blockchain node, the fourth type of blockchain node can also be used to upload vaccine secondary storage tag update node data, vaccination node data, vaccine adverse reaction monitoring data, upload node data, and data summary corresponding to these data. .

In addition to being a blockchain node, the fifth type of blockchain node can also be used to upload environmental monitoring data during the first vaccine transportation process (the generation time of the vaccine outbound label update node data and the vaccine inbound label update node data Between the generation time of the vaccine), the environmental monitoring data during the second transportation of the vaccine (between the generation time of the vaccine secondary outbound label update node data and the vaccine secondary storage label update node data generation time). These data correspond to these data Data summary. Among them, the environmental monitoring data during the first transportation of the vaccine and the environmental monitoring data during the second transportation of the vaccine both include at least the temperature and humidity of the transportation chain.

That is to say, the blockchain equipment corresponding to the above five types of blockchain nodes is deployed in different institutions. The roles represented by the blockchain nodes when uploading data are vaccine manufacturers, regulatory agencies, CDC, and vaccination. One of the five types of units and data collection centers. The data uploaded by the blockchain device of each role is as the above example.

Since any blockchain node limits the type of data it uploads, a complete blockchain network composed of blockchain nodes with different roles is realized, which is the key to the production, sales, transportation, and supervision of the vaccine supply chain. Data provides services such as data storage, management, traceability, verification, and non-repudiation.

S120. If the first data summary uploaded by any first type blockchain node is detected, call the pre-stored first smart contract, second smart contract, third smart contract, and/or fourth smart contract to compare the The first data summary is verified. If the first data summary is verified by the first smart contract, the second smart contract, the third smart contract, and/or the fourth smart contract, it passes the first leadership district elected by the consensus algorithm The block chain node constructs a block to store the first data summary, and correspondingly updates the block on each block chain node to obtain the updated block chain.

In this embodiment, in addition to being a blockchain node, the first type of blockchain node can also be used to upload vaccine production data review node data, vaccine production tagging node data, and vaccine delivery label update node data. These data correspond to Therefore, when the blockchain network detects the first data summary uploaded by any first type blockchain node (this data summary has not been written into the block at this time, but is cached in the blockchain network In a data pool), at this time, the first smart contract, the second smart contract, the third smart contract and/or the fourth smart contract are correspondingly called from the smart contracts stored in each blockchain node to summarize the first data Whether the corresponding data satisfies the first smart contract, the second smart contract, the third smart contract and/or the fourth smart contract is verified.

Among them, the first smart contract corresponds to a production contract, the second smart contract corresponds to a purchase contract, the third smart contract corresponds to a transportation contract, and the fourth smart contract corresponds to a supervision contract.

More specifically, the production contract is used for the supervision of the production stage, and its main functions include: vaccine manufacturers submit production plans and production license applications. The regulatory agency processes the production license application after checking the production plan. After the regulatory agency approves the application, the batch of vaccines will be assigned a label number according to the production plan. Among them, the data table corresponding to the production contract includes the following fields: manufacturer number, vaccine batch number, vaccine type name, time of submission of the production application, status bit (initially 0, if the regulatory agency approves it, then it is 1, rejected It is -1), and the vaccine label code.

The purchase contract is used for order negotiation between the vaccine manufacturer and the CDC. Its main functions are: the CDC initiates a purchase application to the vaccine manufacturer, and submits data such as the type, quantity, and time of the vaccine to be purchased; the vaccine manufacturer processes the order. The purchase contract also maintains a purchase data sheet, which saves manufacturer information, CDC information, and the type, quantity, purchase time, and other data of the vaccine in the order.

The transportation contract is used for the supervision of the transportation stage and consists of two parts. From the vaccine manufacturer to the CDC and from the CDC to the lower-level CDC or vaccination unit. The main functions of the transportation contract include: recording the information of the sender and receiver of the transportation order, such as when an order is sent from manufacturer A to CDC B, or from CDC C to vaccination site D, and the transportation company Information. Monitor the temperature and location information during transportation, and the data sent by the sensor network to the transportation contract will be stored in the table.

The regulatory contract is based on the vaccine label and preserves the entire process of vaccine circulation. At the same time, it is also a channel for vaccinated users to query vaccine information based on the tag number, and can query the validity period of the vaccine, the vaccine manufacturer, the CDC passed by and the vaccinating unit. Its main function is as follows: vaccine manufacturers upload vaccine label data circulating to the CDC. The CDC scans the code, uploads the received vaccine label data, and checks it with the data uploaded by the manufacturer. The CDC uploads vaccine label data circulating to the next-level CDC or vaccination unit. The vaccination unit scans the code, uploads the received vaccine label data, and checks it with the data uploaded by the higher-level CDC. Provides the function of querying the entire circulation process information based on the label.

When the data corresponding to the first data summary satisfies the first smart contract, the second smart contract, the third smart contract and/or the fourth smart contract, each blockchain node of the blockchain network needs to elect a first leader according to the consensus algorithm The blockchain node uses the first leader blockchain node to act as a miner to dig the first data summary in the data pool, and write the first data summary into the corresponding block constructed by the first leader blockchain node. Store, and finally send a copy of the first data summary to other blockchain nodes in a very short time. After the rest of the nodes are authenticated, the corresponding blocks on each blockchain node are updated to obtain the updated blockchain. .

In an embodiment, step S120 includes:

If the first data summary uploaded by any first type blockchain node is detected, call the query function in the first smart contract, the second smart contract, the third smart contract, and/or the fourth smart contract to obtain the The first historical data set corresponding to the first data summary;

Acquiring the first data node sequence corresponding to the first data summary according to each historical data included in the first historical data set;

Judging whether the sequence of the first data node corresponding to the first data summary satisfies the first smart contract, the second smart contract, the third smart contract, and/or the fourth smart contract;

If the first data node corresponding to the first data summary satisfies the first smart contract, the second smart contract, the third smart contract, and/or the fourth smart contract in order, the leader blockchain node is elected through the practical Byzantine fault-tolerant algorithm ；

Storing the first data summary through the current first block created in the first leader blockchain node;

Send a copy of the first data summary in the current first block to other blockchain nodes.

In this embodiment, in order to determine whether the first data summary satisfies the first smart contract, it is mainly determined that the first data node corresponding to the first data summary satisfies the first smart contract in order. If the order of the first data node corresponding to the first data summary does not satisfy the first smart contract, a prompt message indicating that the uploaded data is incorrect is sent to the first type blockchain node. For example, the data corresponding to the first data summary is the vaccine production data review node data uploaded by the first type of blockchain node, because each vaccine manufacturer will send the vaccine production data to the regulatory agency before producing each batch of vaccines And apply for review.

The vaccine production materials include vaccine varieties, vaccine batches, vaccine raw materials and production process parameters. When these vaccine production materials are sent from the vaccine manufacturer’s equipment to the regulatory agency equipment, the first data summary corresponding to the vaccine production materials is also at the same time. Need to be wound. The first data node sequence corresponding to the first data summary satisfies the first smart contract, the second smart contract, the third smart contract and/or the fourth smart contract (for example, the first data node sequence corresponding to the first data summary is 1 , Which satisfies the first smart contract, the second smart contract, the third smart contract and/or the fourth smart contract), the first blockchain node is elected through the practical Byzantine fault-tolerant algorithm, and then the first leader area is passed The current first block created in the block chain node stores the first data summary. Finally, in a very short time, the copy of the first data summary is sent to other blockchain nodes in the blockchain network except the first leading blockchain node. In this way, the first data summary uploaded by the first-type blockchain node is effectively saved, not only the data cannot be tampered with, but also the traceability query is convenient.

In an embodiment, if the first data summary uploaded by any first type blockchain node is detected, call the first smart contract, the second smart contract, the third smart contract, and/or the fourth smart contract The query function of to obtain the first historical data set corresponding to the first data summary includes:

If the first data summary uploaded by any first type blockchain node is detected, it is determined whether the process node corresponding to the first data summary is a vaccine production data review node, a vaccine label update node, or a vaccine delivery node ；

If the process node corresponding to the first data summary is a vaccine production data review node, set the first historical data set to an empty set;

If the process node corresponding to the first data summary is a vaccine label update node, obtain vaccine production data review node data and vaccine approval node data to form a first historical data set;

If the process node corresponding to the first data summary is a vaccine delivery node, obtain vaccine production data review node data, vaccine approval node data, and vaccine production tagging node data to form a first historical data set.

In this embodiment, when the first type of blockchain nodes upload data, they are mainly in the following process nodes in the production, sales, transportation, and supervision of the vaccine supply chain. One is the vaccine production material review node, and the other is It is the vaccine label update node, and the third is the vaccine delivery node.

At the vaccine production material review node, the vaccine manufacturer’s equipment is sent to the regulatory agency to send the vaccine production material for review. The vaccine production material includes the vaccine variety, vaccine batch, vaccine raw materials and production process parameters, and the vaccine production material corresponds to The first data summary of can be operated on the chain.

When the vaccine label update node, the vaccine manufacturer's equipment receives the vaccine label code sent by the regulatory agency equipment, and correspondingly prints the vaccine label code as a label, and the label corresponding to each vaccine label code is pasted on the outer packaging box of the batch of vaccines At this time, the time of sticking the label can be used as the vaccine production labeling node data, and the first data summary corresponding to the vaccine production labeling node data can be uploaded to the chain. Among them, the vaccine label code is composed of 20 digits, the first 6 digits are the vaccine manufacturer code, the middle 6 digits are the vaccine batch number, and the last 8 digits are the vaccine number (the vaccine number is the vaccine The vaccine production materials will be reviewed, and the number will be assigned after the review is passed).

At the vaccine delivery node, the vaccine manufacturer’s equipment sends the vaccine delivery information to the regulatory agency equipment. The vaccine delivery information (which can also be understood as the vaccine delivery label update node data) includes the vaccine tag code, vaccine delivery time, Vaccine outbound transportation chain information (for example, including vaccine outbound transportation chain information that the vaccine is transported by A cold chain transportation company), the first data summary corresponding to the update node data of the vaccine outbound label can be operated on the chain.

That is, as long as the first type of blockchain node is uploading data, it mainly determines whether the order of its data nodes meets the restrictions in the first smart contract, the second smart contract, the third smart contract, and/or the fourth smart contract. This verification method can ensure that the first-type blockchain node uploads data at the correct process node, thereby forming a complete traceability data with the data of other nodes of the batch of vaccines.

In an embodiment, the acquiring the first data node sequence corresponding to the first data summary according to each historical data included in the first historical data set includes:

Acquiring the data timestamp corresponding to each historical data in the first historical data set, and acquiring the current system time corresponding to the first data summary;

The historical data and the first data summary in the first historical data set are sorted in ascending order of time to obtain the first data node order corresponding to the first data summary.

In this embodiment, after acquiring the first historical data set, you can know which historical data the first historical data set includes, and you can know the data timestamp corresponding to each historical data (the data time corresponding to the historical data) The stamp is already stored in the block of the blockchain and can be queried), and the current system time corresponding to the first data summary is also available. At this time, by sorting the historical data and the first data summary in the first historical data set in ascending order of time, the order of the first data node corresponding to the first data summary can be obtained. Sorting the historical data and the first data summary in the first historical data set in the ascending order of the data timestamp can effectively verify whether the first-type blockchain node uploads the data at the correct process node. In this embodiment, in addition to sorting the historical data by the data timestamp corresponding to each historical data, the integrity of all process data in the historical data set can also be obtained. For example, a certain vaccine tag code (that is, the traceability source code) corresponding to the first historical data set corresponds to all the data before the update node data of the vaccine outbound tag. At this time, verifying the integrity of the first historical data set is to determine the Whether the vaccine production data review node data, vaccine approval node data, and vaccine production tagging node data corresponding to the vaccine tag code have been stored in the blockchain. In this way, it can be verified that the vaccine circulation process, the corresponding before and after the source code, and the data is open and transparent, cannot be tampered with, and the time sequence of circulation is correct.

In an embodiment, if the first data node corresponding to the first data summary satisfies the first smart contract, the second smart contract, the third smart contract, and/or the fourth smart contract in order, through the utility of Byzantine Before the fault-tolerant algorithm elects the leader blockchain node, it also includes:

Call the pre-stored identity management contract to obtain the public key hash of each blockchain node to verify the identity of each blockchain node;

If the identity verification of each blockchain node is passed, obtain user identity information of each blockchain node; the user identity information includes vaccine manufacturer equipment, regulatory agency equipment, CDC equipment, vaccination unit equipment, and vaccine transportation data collection equipment.

In this embodiment, each blockchain node needs to perform identity verification before joining the blockchain network. In specific implementation, each blockchain node forms the FISCO BCOS alliance chain. FISCO BCOS is a blockchain underlying platform developed by the Open Source Working Group of the Financial Blockchain Cooperative Alliance (Shenzhen) with financial business practices as a reference sample. In addition to the standard blockchain features, FISCO BCOS also has multi-chain parallel and cross-chain communication technology to support massive transaction requests. The blockchain network in this embodiment adopts a single-chain structure, that is, all blockchain nodes jointly maintain a chain. The system implements a user identity access mechanism, the supervisory agency account serves as the chain administrator, and the remaining users must pass the review and authorization of the supervisory agency to join the system. A user can have one or more nodes (authorization by regulatory agencies), and all nodes participate in the blockchain consensus.

The user's identity management is also realized through smart contracts. Users register on the front-end and apply for different roles. First, they need to create an account, that is, assign a pair of asymmetric keys. The public key hash is used as the user's account address, and then the identity management contract is called. The contract uses a table structure to store the user's account address and identity. At the same time, users need to run blockchain nodes. In the blockchain consensus, all user nodes participate in verification.

S130. If the second data summary uploaded by any second type blockchain node is detected, call the pre-stored first smart contract and/or fourth smart contract to verify the second data summary, if said The second data summary is verified by the first smart contract and/or the fourth smart contract, and a block is constructed by the second leader blockchain node elected by the consensus algorithm to store the second data summary. The above block is updated corresponding to the updated block chain.

In this embodiment, in addition to being a blockchain node, the second type of blockchain node can also be used to upload the data summary corresponding to the data of the vaccine approval node. Therefore, when the blockchain network detects any of the second type The second data summary uploaded by the blockchain node (this data summary has not yet been written into the block at this time, but is cached in a data pool of the blockchain network), at this time through the stored data in each blockchain node In the smart contract, the first smart contract and/or the fourth smart contract are correspondingly invoked to verify whether the data corresponding to the second data summary satisfies the first smart contract and/or the fourth smart contract. When the data corresponding to the second data summary satisfies the first smart contract and/or the fourth smart contract, each blockchain node of the blockchain network needs to elect a second leader blockchain node according to the consensus algorithm to pass the second leader The blockchain node acts as a miner to dig the second data summary in the data pool, write the second data summary into the corresponding block constructed by the second leader blockchain node for storage, and finally take a very short time The copy of the second data summary is sent to other blockchain nodes, so that the corresponding blocks on each blockchain node are updated to obtain the updated blockchain. When verifying whether the data corresponding to the second data summary satisfies the second smart contract for verification, the specific process can refer to judging whether the order of the first data node corresponding to the first data summary satisfies the first smart contract, the second smart contract, and the The third smart contract and/or the fourth smart contract process.

S140. If the third data summary uploaded by any third type blockchain node is detected, call the pre-stored second smart contract, third smart contract and/or fourth smart contract to perform the third data summary Verification, if the third data summary passes the verification of the second smart contract, the third smart contract and/or the fourth smart contract, the third leader blockchain node elected by the consensus algorithm is used to construct a block to convert the third The data summary is stored, and the corresponding blocks on each blockchain node are updated to obtain the updated blockchain.

In this embodiment, in addition to being a blockchain node, the third type of blockchain node can also be used to upload vaccine entry label update node data, vaccine secondary exit label update node data, and vaccine adverse reaction monitoring data. The data summary corresponding to these data uploading node data for the second time, so when the blockchain network detects the third data summary uploaded by any third type blockchain node (this data summary has not been written into the block at this time, but Cached in a data pool of the blockchain network), at this time, the second smart contract, the third smart contract, and/or the fourth smart contract are correspondingly called from the smart contracts stored in each blockchain node to compare the third Whether the data corresponding to the data summary satisfies the second smart contract, the third smart contract and/or the fourth smart contract is verified. When the data corresponding to the third data summary satisfies the second smart contract, the third smart contract, and/or the fourth smart contract, each blockchain node of the blockchain network needs to elect a third leader blockchain node according to the consensus algorithm. Take the role of the third leader blockchain node as a miner to dig the third data summary in the data pool, write the third data summary into the corresponding block constructed by the third leader blockchain node for storage, and finally A copy of the third data summary is sent to other blockchain nodes in a very short time, so that the corresponding blocks on each blockchain node are updated to obtain the updated blockchain. When verifying whether the data corresponding to the third data summary satisfies the third smart contract for verification, the specific process can refer to judging whether the order of the first data node corresponding to the first data summary satisfies the first smart contract, the second smart contract, and the The third smart contract and/or the fourth smart contract process.

S150. If the fourth data summary uploaded by any fourth type blockchain node is detected, call a pre-stored third smart contract and/or fourth smart contract to verify the fourth data summary, if said The fourth data summary is verified by the third smart contract and/or the fourth smart contract, and the fourth leader blockchain node elected by the consensus algorithm is used to construct a block to store the fourth data summary. The above block is updated corresponding to the updated block chain.

In this embodiment, in addition to being a blockchain node, the fourth type of blockchain node can also be used to upload the secondary vaccine storage tag update node data, vaccination node data, and vaccine adverse reaction monitoring data upload node data. The data summary corresponding to the data, so when the blockchain network detects the fourth data summary uploaded by any fourth type blockchain node (this data summary has not been written to the block at this time, but is cached in the blockchain In a data pool of the network), at this time, the third smart contract and/or the fourth smart contract are correspondingly called from the smart contracts stored in each blockchain node to determine whether the data corresponding to the fourth data summary meets the third smart The contract and/or the fourth smart contract are verified. When the data corresponding to the fourth data summary satisfies the third smart contract and/or the fourth smart contract, each blockchain node of the blockchain network needs to elect a fourth leader blockchain node according to the consensus algorithm to pass the fourth leader The blockchain node acts as a miner to dig the fourth data summary in the data pool, write the fourth data summary into the corresponding block constructed by the fourth leading blockchain node for storage, and finally take a very short time Send a copy of the fourth data summary to other blockchain nodes, so as to update the corresponding blocks on each blockchain node to obtain the updated blockchain. When verifying whether the data corresponding to the fourth data summary satisfies the fourth smart contract, the specific process can refer to judging whether the order of the first data node corresponding to the first data summary satisfies the first smart contract, the second smart contract, and the first smart contract. The third smart contract and/or the fourth smart contract process.

That is, when the corresponding block is stored in the first leader blockchain node building block, the second leader blockchain node building block, the third leader blockchain node building block, or the fourth leader blockchain node building block After the summary data, in order to ensure that all the blockchains stored on the blockchain nodes are synchronized, at this time, all the blocks of the blockchain nodes except the leading blockchain node need to be based on the leading blockchain node’s Blocks are updated synchronously to ensure that the blockchain data stored on each blockchain node is consistent.

And the elected first leader block chain node, second leader block chain node, third leader block chain node, fourth leader block chain node, and even more subsequent leader block chain nodes elected It does not specifically refer to a fixed blockchain node, but any blockchain node may be elected as the leading blockchain node.

In an embodiment, after step S150, the method further includes:

Determine whether the traceable source code uploaded by the blockchain node is detected; wherein the traceable source code is a 20-digit vaccine tag code;

If the traceable source code uploaded by a blockchain node is detected, the vaccine traceability data set corresponding to the traceable source code is obtained in the updated blockchain according to the traceable source code; wherein, the vaccine traceability data set includes vaccine production materials Review node data, vaccine approval node data, vaccine production labeling node data, vaccine delivery tag update node data, vaccine entry tag update node data, vaccine secondary delivery tag update node data, vaccine secondary entry tag update node Data, vaccination node data, vaccine adverse reaction monitoring data upload node data, and vaccine adverse reaction monitoring data secondary upload node data.

In this embodiment, when the storage of the whole process data of a certain batch of vaccine on the blockchain is completed, any blockchain node can initiate a data query at this time, and it is only necessary to determine whether it is detected The trace source code uploaded by the blockchain node. If the traceability source code uploaded by the blockchain node is detected, the vaccine traceability data set corresponding to the traceability source code is obtained in the updated blockchain according to the traceability source code.

The whole process of general vaccine is as follows:

1) Before producing each batch of vaccines, vaccine manufacturers submit vaccine production materials to regulatory agencies for review. Vaccine manufacturers can only produce vaccines after obtaining approval from regulatory agencies. The vaccine production materials include vaccine varieties, vaccine batches, vaccine raw materials and production process parameters;

2) After the regulatory agency has reviewed the vaccine production materials of the vaccine manufacturer, the regulatory agency will return the review results, including whether to approve the production, and the regulatory agency will assign a vaccine label code to the batch of vaccines. The vaccine label code is the unique identification mark of the vaccine For traceability;

3) After approval by the regulatory agency, the vaccine manufacturer will produce vaccines and paste codes for each vaccine (ie, paste the vaccine label code);

4-6) In all links of vaccine circulation, vaccine entities are involved, and tags and data need to be scanned when entering and leaving the warehouse;

7) The vaccination unit uses the vaccine for the vaccinators and uploads the vaccination node data;

8) The vaccination unit will upload the node data of the vaccine adverse reaction monitoring data to the CDC;

9) The Center for Disease Control and Prevention reports the secondary upload node data of the vaccine adverse reaction monitoring data to the regulatory agency.

In order to facilitate the traceability of the entire process of vaccine data, the vaccine traceability data set at this time includes at least vaccine production data review node data, vaccine approval node data, vaccine production tagging node data, vaccine delivery label update node data, and vaccine storage Label update node data, vaccine secondary outbound label update node data, vaccine secondary storage label update node data, vaccination node data, vaccine adverse reaction monitoring data upload node data, and vaccine adverse reaction monitoring data secondary upload node data. Through this vaccine traceability data set, users can query vaccine information and vaccine circulation data. Moreover, the vaccine tag code can locate and track the circulation process of all the batches of vaccines, and can be used as undeniable digital evidence.

In an embodiment, after step S110, the method further includes:

If the fifth data summary uploaded by any fifth type blockchain node is detected, call the pre-stored third smart contract to verify the fifth data summary, if the fifth data summary passes the third smart contract For verification, the fifth leading blockchain node elected by the consensus algorithm builds a block to store the fifth data summary, and updates the corresponding block on each blockchain node to obtain the updated blockchain.

In this embodiment, in addition to being a blockchain node, the fifth type of blockchain node can also be used to upload data corresponding to environmental monitoring data during the first transportation of vaccines and environmental monitoring data during the second transportation of vaccines. Abstract, so when the blockchain network detects the fifth data summary uploaded by any fifth type blockchain node (this data summary has not been written into the block at this time, but a data cached in the blockchain network In the pool), at this time, the third smart contract is correspondingly invoked through the smart contracts stored in each blockchain node to verify whether the data corresponding to the fifth data summary meets the third smart contract. When the data corresponding to the fifth data summary satisfies the third smart contract, each blockchain node of the blockchain network needs to elect a fifth leader blockchain node according to the consensus algorithm, so that the fifth leader blockchain node can act as the miner's The character goes to the data pool to dig the fifth data summary, writes the fifth data summary into the corresponding block constructed by the fifth leader blockchain node for storage, and finally copies the fifth data summary in a very short time Send to other blockchain nodes. When verifying whether the data corresponding to the fifth data summary satisfies the fifth smart contract, the specific process can refer to judging whether the sequence of the first data node corresponding to the first data summary satisfies the first smart contract, the second smart contract, and the first smart contract. The third smart contract and/or the fourth smart contract process.

In an embodiment, after step S110, the method further includes:

If the data summary uploaded by the blockchain node is not detected, wait for the preset consensus time, and return to step S110.

In this embodiment, if the data summary uploaded by the blockchain node is not detected, it means that there is no data to be uploaded to the chain at this time. At this time, wait for the preset consensus time (such as 1s) to initiate a check of the uploaded data summary again. .

This method realizes that the blockchain provides services such as data storage, management, traceability, verification, and non-repudiation for key data in the production, sales, transportation, and supervision of the vaccine supply chain, which can not only ensure the safety of vaccine circulation data, but also Ensure the traceability, undeniability, and timeliness of the vaccine circulation process.

The embodiment of the present application also provides a vaccine information monitoring device based on a blockchain, which is used to execute any embodiment of the aforementioned vaccine information monitoring method based on the blockchain. Specifically, please refer to FIG. 3, which is a schematic block diagram of a vaccine information monitoring device based on a blockchain provided in an embodiment of the present application. The vaccine information monitoring device 100 based on the blockchain can be configured in any blockchain node.

As shown in FIG. 3, the vaccine information monitoring device 100 based on the blockchain includes a data summary receiving unit 110, a first type storage unit 120, a second type storage unit 130, a third type storage unit 140, and a fourth type storage unit 150. .

The data summary receiving unit 110 is used to determine whether a data summary uploaded by a blockchain node is detected; wherein, the blockchain node includes a first type of blockchain node, a second type of blockchain node, and a third type of blockchain node. Type block chain node, type fourth type block chain node, fifth type block chain node; the first type block chain node is a vaccine manufacturer equipment block chain node, and the second type block chain node Is a block chain node of a regulatory agency equipment, the third type of block chain node is a CDC equipment block chain node, the fourth type of block chain node is a vaccination unit equipment block chain node, the first The five types of blockchain nodes are the blockchain nodes of vaccine transportation data collection equipment.

The first-type storage unit 120 is used to call the pre-stored first smart contract, second smart contract, third smart contract and/or first data summary uploaded by any first-type blockchain node. Four smart contracts are used to verify the first data summary. If the first data summary passes, the second smart contract, the third smart contract, and/or the fourth smart contract are verified, the first data summary elected by the consensus algorithm A leading blockchain node constructs a block to store the first data summary, and updates the corresponding block on each blockchain node to obtain the updated blockchain.

In an embodiment, the first type storage unit 120 includes:

The first historical data set acquisition unit is used to call the first smart contract, the second smart contract, the third smart contract and/or the fourth smart contract if the first data summary uploaded by any first type blockchain node is detected The query function in the contract obtains the first historical data set corresponding to the first data summary;

The first data node sequence obtaining unit is configured to obtain the first data node sequence corresponding to the first data summary according to each historical data included in the first historical data set;

The first smart contract verification unit is used to determine whether the sequence of the first data node corresponding to the first data summary satisfies the first smart contract, the second smart contract, the third smart contract, and/or the fourth smart contract;

The first election unit is configured to use Byzantine fault tolerance if the first data node corresponding to the first data summary satisfies the first smart contract, the second smart contract, the third smart contract and/or the fourth smart contract in order, Algorithm to elect the leader blockchain node;

The first type block creation unit is configured to store the first data summary through the current first block created in the first leader blockchain node;

The first block copy sending unit is configured to send a copy of the first data digest in the current first block to other blockchain nodes.

In an embodiment, the first historical data set acquisition unit includes:

The first process node judging unit is used to determine whether the process node corresponding to the first data summary is a vaccine production data review node or a vaccine label if the first data summary uploaded by any first type blockchain node is detected Update node, or vaccine delivery node;

A vaccine production material review node execution unit, configured to set the first historical data set to an empty set if the process node corresponding to the first data summary is a vaccine production material review node;

The vaccine label update node execution unit is configured to, if the process node corresponding to the first data summary is a vaccine label update node, obtain vaccine production data review node data and vaccine approval node data to form a first historical data set;

The vaccine delivery node execution unit is used to obtain vaccine production data review node data, vaccine approval node data, and vaccine production tagging node data if the process node corresponding to the first data summary is a vaccine delivery node to form the first Historical data set.

In an embodiment, the first data node sequential obtaining unit includes:

The first time stamp obtaining unit is configured to obtain data time stamps corresponding to each historical data in the first historical data set, and obtain the current system time corresponding to the first data summary;

The first time stamp sorting unit is configured to sort the historical data and the first data summary in the first historical data set in ascending order of time to obtain the first data node order corresponding to the first data summary.

In an embodiment, the vaccine information monitoring device 100 based on blockchain further includes:

The identity verification unit is used to call the pre-stored identity management contract to obtain the public key hash of each blockchain node to verify the identity of each blockchain node;

The equipment identity acquisition unit is used to obtain the user identity information of each blockchain node if the identity verification of each blockchain node is passed; the user identity information includes equipment of vaccine manufacturers, equipment of regulatory agencies, equipment of CDC, and equipment of vaccination unit , Vaccine transportation data collection equipment.

The second type storage unit 130 is configured to, if a second data summary uploaded by any second type blockchain node is detected, call the pre-stored first smart contract and/or fourth smart contract to compare the second data The summary is verified. If the second data summary passes the verification of the first smart contract and/or the fourth smart contract, the second leader blockchain node elected by the consensus algorithm constructs a block to perform the second data summary. Store, update the corresponding block on each block chain node to obtain the updated block chain.

The third type storage unit 140 is used to call the pre-stored second smart contract, third smart contract and/or fourth smart contract if the third data summary uploaded by any third type blockchain node is detected The third data summary is verified, and if the third data summary passes the verification of the second smart contract, the third smart contract and/or the fourth smart contract, it passes the third leader blockchain node elected by the consensus algorithm The block is constructed to store the third data summary, and the block corresponding to each block chain node is updated to obtain the updated block chain.

The fourth type storage unit 150 is configured to, if the fourth data summary uploaded by any fourth type blockchain node is detected, call the pre-stored third smart contract and/or fourth smart contract to compare the fourth data The summary is verified. If the fourth data summary passes the verification of the third smart contract and/or the fourth smart contract, the fourth leader blockchain node elected by the consensus algorithm builds a block to perform the fourth data summary. Store, update the corresponding block on each block chain node to obtain the updated block chain.

In an embodiment, the device 100 for monitoring vaccine information based on blockchain further includes:

The data query request judging unit is used to judge whether the traceable source code uploaded by the blockchain node is detected; wherein the traceable source code is a 20-digit vaccine tag code;

The vaccine traceability data set obtaining unit is configured to obtain the vaccine traceability data set corresponding to the traceable source code in the updated blockchain according to the traceable source code if the traceable source code uploaded by the blockchain node is detected; The vaccine traceability data set includes vaccine production data review node data, vaccine approval node data, vaccine production labeling node data, vaccine delivery tag update node data, vaccine entry tag update node data, vaccine secondary delivery tag update node data , Vaccine secondary storage tag update node data, vaccination node data, vaccine adverse reaction monitoring data upload node data, vaccine adverse reaction monitoring data secondary upload node data.

The fifth type storage unit is used to call a pre-stored third smart contract to verify the fifth data summary if the fifth data summary uploaded by any fifth type blockchain node is detected. The fifth data summary is verified by the third smart contract, and the fifth data summary is constructed by the fifth leading blockchain node elected by the consensus algorithm to store the fifth data summary, and the corresponding block on each blockchain node is updated to get Blockchain after update.

The device realizes that the blockchain provides services such as data storage, management, traceability, verification, and non-repudiation for key data in the production, sales, transportation, and supervision of the vaccine supply chain. It can not only ensure the safety of vaccine circulation data, but also Ensure the traceability, undeniability, and timeliness of the vaccine circulation process.

The above-mentioned block chain-based vaccine information monitoring device can be implemented in the form of a computer program, and the computer program can be run on a computer device as shown in FIG. 4.

Please refer to FIG. 4, which is a schematic block diagram of a computer device according to an embodiment of the present application. The computer device 500 is a server, and the server may be an independent server or a server cluster composed of multiple servers.

4, the computer device 500 includes a processor 502, a memory, and a network interface 505 connected through a system bus 501, where the memory may include a non-volatile storage medium 503 and an internal memory 504.

The non-volatile storage medium 503 can store an operating system 5031 and a computer program 5032. When the computer program 5032 is executed, the processor 502 can execute the vaccine information monitoring method based on the blockchain.

The processor 502 is used to provide calculation and control capabilities, and support the operation of the entire computer device 500.

The internal memory 504 provides an environment for the operation of the computer program 5032 in the non-volatile storage medium 503. When the computer program 5032 is executed by the processor 502, the processor 502 can execute the vaccine information monitoring method based on the blockchain.

The network interface 505 is used for network communication, such as providing data information transmission. Those skilled in the art can understand that the structure shown in FIG. 4 is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device 500 to which the solution of the present application is applied. The specific computer device 500 may include more or fewer components than shown in the figure, or combine certain components, or have a different component arrangement.

Wherein, the processor 502 is configured to run a computer program 5032 stored in a memory to implement the vaccine information monitoring method based on the blockchain disclosed in the embodiment of the present application.

Those skilled in the art can understand that the embodiment of the computer device shown in FIG. 4 does not constitute a limitation on the specific configuration of the computer device. In other embodiments, the computer device may include more or less components than those shown in the figure. Or some parts are combined, or different parts are arranged. For example, in some embodiments, the computer device may only include a memory and a processor. In such an embodiment, the structures and functions of the memory and the processor are consistent with the embodiment shown in FIG. 4, and will not be repeated here.

It should be understood that, in this embodiment of the application, the processor 502 may be a central processing unit (Central Processing Unit, CPU), and the processor 502 may also be other general-purpose processors, digital signal processors (Digital Signal Processors, DSPs), Application Specific Integrated Circuit (ASIC), Field-Programmable Gate Array (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc. Among them, the general-purpose processor may be a microprocessor or the processor may also be any conventional processor.

In another embodiment of the present application, a computer-readable storage medium is provided. The computer-readable storage medium may be a non-volatile computer-readable storage medium. The computer readable storage medium stores a computer program, where the computer program is executed by a processor to realize the vaccine information monitoring method based on the blockchain disclosed in the embodiments of the present application.

Those skilled in the art can clearly understand that, for the convenience and conciseness of description, the specific working process of the above-described equipment, device, and unit can refer to the corresponding process in the foregoing method embodiment, which will not be repeated here. A person of ordinary skill in the art may be aware that the units and algorithm steps of the examples described in the embodiments disclosed herein can be implemented by electronic hardware, computer software, or a combination of both, in order to clearly illustrate the hardware and software Interchangeability, in the above description, the composition and steps of each example have been generally described in accordance with the function. Whether these functions are executed by hardware or software depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.

In the several embodiments provided in this application, it should be understood that the disclosed equipment, device, and method may be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods, or the units with the same function may be combined into one. Units, for example, multiple units or components can be combined or integrated into another system, or some features can be omitted or not implemented. In addition, the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may also be electrical, mechanical or other forms of connection.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments of the present application.

In addition, the functional units in the various embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit. The above-mentioned integrated unit can be implemented in the form of hardware or software functional unit.

If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a storage medium. Based on this understanding, the technical solution of this application is essentially or the part that contributes to the existing technology, or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium. It includes several instructions to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), magnetic disk or optical disk and other media that can store program codes.

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

Claims

A method for monitoring vaccine information based on blockchain, which is characterized in that it is applied to any blockchain node and includes:

Determine whether a data summary uploaded by a blockchain node is detected; wherein, the blockchain node includes a first type of blockchain node, a second type of blockchain node, a third type of blockchain node, and a fourth type of area Blockchain nodes, fifth-type blockchain nodes; the first-type blockchain nodes are vaccine manufacturers’ equipment blockchain nodes, and the second-type blockchain nodes are regulatory agency equipment blockchain nodes, so The third type of block chain node is the CDC equipment block chain node, the fourth type of block chain node is the vaccination unit equipment block chain node, and the fifth type of block chain node is the vaccine transportation data Collect device blockchain nodes;

If the first data summary uploaded by any one of the first type blockchain nodes is detected, call the pre-stored first smart contract, second smart contract, third smart contract and/or fourth smart contract to compare the first The data digest is verified. If the first data digest is verified by the second smart contract, the third smart contract, and/or the fourth smart contract, the block is constructed by the first leader blockchain node elected by the consensus algorithm To store the first data summary, update the corresponding block on each blockchain node to obtain the updated blockchain;

If the second data summary uploaded by any second type blockchain node is detected, call the pre-stored first smart contract and/or fourth smart contract to verify the second data summary, if the second The data summary is verified by the first smart contract and/or the fourth smart contract, and the second leading blockchain node elected by the consensus algorithm is used to construct a block to store the second data summary. The corresponding block is updated to get the updated block chain;

If the third data summary uploaded by any third type blockchain node is detected, call the pre-stored second smart contract, third smart contract and/or fourth smart contract to verify the third data summary, If the third data summary passes the verification of the second smart contract, the third smart contract, and/or the fourth smart contract, a block is constructed by the third leader blockchain node elected by the consensus algorithm to summarize the third data Perform storage and update the corresponding blocks on each blockchain node to obtain the updated blockchain; and

If the fourth data summary uploaded by any fourth type blockchain node is detected, call the pre-stored third smart contract and/or fourth smart contract to verify the fourth data summary. The data summary is verified by the third smart contract and/or the fourth smart contract, and the fourth leader blockchain node elected by the consensus algorithm is used to construct a block to store the fourth data summary. The corresponding block is updated to get the updated block chain.
The method for monitoring vaccine information based on blockchain according to claim 1, characterized in that, if the first data summary uploaded by any first type blockchain node is detected, the pre-stored first smart contract is called , The second smart contract, the third smart contract and/or the fourth smart contract to verify the first data summary, if the first data summary passes, the second smart contract, the third smart contract and/or the first data summary Fourth, the verification of smart contracts is to build blocks to store the first data summary through the first leading blockchain node elected by the consensus algorithm, including:

If the first data summary uploaded by any first type blockchain node is detected, call the query function in the first smart contract, the second smart contract, the third smart contract, and/or the fourth smart contract to obtain the The first historical data set corresponding to the first data summary;

Acquiring the first data node sequence corresponding to the first data summary according to each historical data included in the first historical data set;

Judging whether the sequence of the first data node corresponding to the first data summary satisfies the first smart contract, the second smart contract, the third smart contract, and/or the fourth smart contract;

If the first data node corresponding to the first data summary satisfies the first smart contract, the second smart contract, the third smart contract, and/or the fourth smart contract in order, the first guide area is elected through the practical Byzantine fault-tolerant algorithm Block chain node;

Storing the first data summary through the current first block created in the first leader blockchain node;

Send a copy of the first data summary in the current first block to other blockchain nodes.
The method for monitoring vaccine information based on blockchain according to claim 2, characterized in that, if the first data summary uploaded by any one of the first type blockchain nodes is detected, the first smart contract, the second The query function in the smart contract, the third smart contract, and/or the fourth smart contract to obtain the first historical data set corresponding to the first data summary includes:

If the first data summary uploaded by any first type blockchain node is detected, it is determined whether the process node corresponding to the first data summary is a vaccine production data review node, a vaccine label update node, or a vaccine delivery node ；

If the process node corresponding to the first data summary is a vaccine production data review node, set the first historical data set to an empty set;

If the process node corresponding to the first data summary is a vaccine label update node, obtain vaccine production data review node data and vaccine approval node data to form a first historical data set;

If the process node corresponding to the first data summary is a vaccine delivery node, obtain vaccine production data review node data, vaccine approval node data, and vaccine production tagging node data to form a first historical data set.
The method for monitoring vaccine information based on the blockchain according to claim 2, wherein the first data node sequence corresponding to the first data summary is obtained according to each historical data included in the first historical data set, include:

Acquiring the data timestamp corresponding to each historical data in the first historical data set, and acquiring the current system time corresponding to the first data summary;

The historical data and the first data summary in the first historical data set are sorted in ascending order of time to obtain the first data node order corresponding to the first data summary.
The method for monitoring vaccine information based on blockchain according to claim 2, wherein if the first data node corresponding to the first data summary satisfies the order of the first smart contract, the second smart contract, and the third The smart contract and/or the fourth smart contract, before electing the leader blockchain node through a practical Byzantine fault-tolerant algorithm, also includes:

Call the pre-stored identity management contract to obtain the public key hash of each blockchain node to verify the identity of each blockchain node;

If the identity verification of each blockchain node is passed, obtain user identity information of each blockchain node; the user identity information includes vaccine manufacturer equipment, regulatory agency equipment, CDC equipment, vaccination unit equipment, and vaccine transportation data collection equipment.
The method for monitoring vaccine information based on blockchain according to claim 1, characterized in that said correspondingly updating the blocks on each blockchain node, after obtaining the updated blockchain, it further comprises:

Determine whether the traceable source code uploaded by the blockchain node is detected; wherein the traceable source code is a 20-digit vaccine tag code;

If the traceable source code uploaded by a blockchain node is detected, the vaccine traceability data set corresponding to the traceable source code is obtained in the updated blockchain according to the traceable source code; wherein, the vaccine traceability data set includes vaccine production materials Review node data, vaccine approval node data, vaccine production labeling node data, vaccine delivery tag update node data, vaccine entry tag update node data, vaccine secondary delivery tag update node data, vaccine secondary entry tag update node Data, vaccination node data, vaccine adverse reaction monitoring data upload node data, and vaccine adverse reaction monitoring data secondary upload node data.
The method for monitoring vaccine information based on blockchain according to claim 1, characterized in that, after determining whether a data digest uploaded by a blockchain node is detected, the method further comprises:

If the fifth data summary uploaded by any fifth type blockchain node is detected, call the pre-stored third smart contract to verify the fifth data summary, if the fifth data summary passes the third smart contract For verification, the fifth leading blockchain node elected by the consensus algorithm builds a block to store the fifth data summary, and updates the corresponding block on each blockchain node to obtain the updated blockchain.
A vaccine information monitoring device based on blockchain, which is characterized in that it includes:

The data summary receiving unit is used to determine whether a data summary uploaded by a blockchain node is detected; wherein the blockchain node includes a first type of blockchain node, a second type of blockchain node, and a third type of block Chain nodes, fourth type blockchain nodes, fifth type blockchain nodes; the first type blockchain node is a vaccine manufacturer equipment blockchain node, and the second type blockchain node is a regulatory agency Device blockchain node, the third type blockchain node is the CDC device blockchain node, the fourth type blockchain node is the vaccination unit device blockchain node, the fifth type area The block chain node is the block chain node of the vaccine transportation data collection equipment;

The first-type storage unit is used to call the pre-stored first smart contract, second smart contract, third smart contract and/or fourth smart contract if the first data summary uploaded by any first-type blockchain node is detected The smart contract verifies the first data summary. If the first data summary passes, the second smart contract, the third smart contract, and/or the fourth smart contract are verified, the first data summary elected by the consensus algorithm is passed. Lead the blockchain node to construct a block to store the first data summary, and update the corresponding block on each blockchain node to obtain the updated blockchain;

The second type storage unit is used to call the pre-stored first smart contract and/or fourth smart contract to summarize the second data if the second data summary uploaded by any second type blockchain node is detected Perform verification. If the second data digest passes the verification of the first smart contract and/or the fourth smart contract, the second leader blockchain node elected by the consensus algorithm builds a block to store the second data digest , Update the corresponding block on each blockchain node to get the updated blockchain;

The third type storage unit is used to call the pre-stored second smart contract, third smart contract and/or fourth smart contract to check the third data summary uploaded by any third-type blockchain node. The third data summary is verified. If the third data summary is verified by the second smart contract, the third smart contract, and/or the fourth smart contract, it is constructed by the third leader blockchain node elected by the consensus algorithm The block stores the third data summary, and updates the corresponding blocks on each block chain node to obtain the updated block chain; and

The fourth type storage unit is used to call the pre-stored third smart contract and/or fourth smart contract to summarize the fourth data if the fourth data summary uploaded by any fourth type blockchain node is detected Perform verification. If the fourth data summary passes the verification of the third smart contract and/or the fourth smart contract, the fourth leader blockchain node elected by the consensus algorithm builds a block to store the fourth data summary , Update the corresponding block on each block chain node to get the updated block chain.
A computer device, comprising a memory, a processor, and a computer program stored on the memory and capable of running on the processor, wherein the processor executes the computer program as claimed in claims 1 to 7. The blockchain-based vaccine information monitoring method described in any one of 7.
A computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the processor executes any one of claims 1 to 7 The described vaccine information monitoring method based on blockchain.