CN110502922B - Article circulation link tracing method and device based on block chain and electronic equipment - Google Patents

Abstract

The present disclosure relates to a blockchain-based tracing method, device, electronic equipment and computer-readable medium for article circulation links. The method includes: obtaining the Internet of Things data and link identification of the item; generating block data through the Internet of Things data, and uploading the block data to the blockchain system; generating a multi-layer code label through the link identification; The block data, the multi-layer code label and the article are associated; and the circulation link of the article is traced through the multi-layer code label. This disclosure involves a blockchain-based traceability method, device, electronic device, and computer-readable medium for the circulation of items. During the circulation of items, users can scan and query the data information of the designated blocks before this link, and also The corresponding data of this link can be recorded to facilitate further traceability and credible inspection in the future.

Description

Blockchain-based traceability methods, devices and electronic equipment for items in circulation

Technical field

The present disclosure relates to the field of computer information processing, and specifically, to a blockchain-based tracing method, device, electronic equipment, and computer-readable medium for article circulation links.

Background technique

The safety of existing agricultural and sideline foods is a hot issue in society at present. Agricultural product quality and safety issues involve many aspects such as the environment of origin, production, harvesting, processing, storage, transportation, sales, supervision, and law enforcement. The main risk sources for the quality and safety of agricultural products include environmental pollution in the place of production, residues of agricultural inputs, illegal addition of prohibited substances during production and processing, contamination by pathogenic microorganisms and parasites, counterfeiting and selling, animal and plant diseases, agricultural products’ own toxins and their metabolites. As well as contamination of raw materials, products, packaging, and equipment during collection, storage, and transportation.

At present, some blockchain technologies have been applied to the traceability of agricultural products, but some QR codes are often used in product packaging as traceability entrances. Currently, these traceability methods have the following problems:

1) The current QR code for item traceability is easy to prevent, especially by taking a photo and printing it. It is easy to forge an identical QR code label, and then paste the label on fake and shoddy products. It is difficult for users to distinguish, especially There is a need for a new coding technology that can link to blockchain technology and enable data inspection to record food throughout the entire logistics chain;

2) Existing QR codes are a simple entrance. After the user scans the code, the user will get a link or pop up a backend such as an app or web page. There are also some applications that use blockchain to record the entire process of products, but the lack of traceability technology with time and space makes it impossible to achieve a multi-dimensional and credible traceability system.

Therefore, a new blockchain-based traceability method, device, electronic equipment and computer-readable medium for item circulation is needed.

The above information disclosed in the Background section is only for enhancement of understanding of the context of the disclosure and therefore it may contain information that does not form the prior art that is already known to a person of ordinary skill in the art.

Contents of the invention

In view of this, the present disclosure provides a blockchain-based tracing method, device, electronic device, and computer-readable medium for items in circulation. During the circulation of items, users can scan and query the designated blocks before this link. The data information of this link can also be recorded to facilitate further traceability and trustworthy inspection in the future.

Additional features and advantages of the disclosure will be apparent from the following detailed description, or, in part, may be learned by practice of the disclosure.

According to one aspect of the present disclosure, a blockchain-based tracing method for item circulation links is proposed. The method includes: obtaining the Internet of Things data and link identifiers of the items; generating block data through the Internet of Things data, and converting the Upload the block data to the blockchain system; generate a multi-layer code label through the link identifier; associate the block data, the multi-layer code label and the item; and use the multi-layer code label to The circulation links of the items are traced.

In an exemplary embodiment of the present disclosure, generating a multi-layer code label through the link identifier includes: generating a single-layer code label through the link identifier; and printing the single-layer code label on a preset single layer code label to generate the multi-layer code label.

In an exemplary embodiment of the present disclosure, associating the block data, the multi-layer code label and the item includes: associating the block data with the single-layer code identification; and The multi-layer code label is associated with the item.

In an exemplary embodiment of the present disclosure, associating the block data with the single-layer code identifier includes: associating the block data with the single-layer code identifier through a block identifier table; Wherein, the block identification table includes the header identification of the block data, the single-layer code identification and the valid time.

In an exemplary embodiment of the present disclosure, tracing the circulation link of the item through the multi-layer code tag includes: receiving a data access application from the client, the data access application including the current time and a single layer code identification; determine whether the data access application complies with the preset rules based on the current time and the single-layer code identification; and when the preset rules are met, send the block data corresponding to the single-layer code identification to the customer end.

In an exemplary embodiment of the present disclosure, determining whether the data access application complies with preset rules based on the current time and a single-layer code identifier includes: comparing the single-layer code identifier with a single-layer code identifier in the block identifier table. Compare the layer code identifiers; when the comparison is consistent, determine whether the current time exceeds the effective time range in the block identification table; and determine whether the data access application complies with the preset rules when it does not exceed the effective time range. .

In an exemplary embodiment of the present disclosure, obtaining the Internet of Things data and link identifier of the item also includes: obtaining a data upload application for the item, the upload application including the current link identifier and the target link identifier; based on the preset hierarchical relationship Use the current link identifier and the target link identifier to determine whether the data upload application is valid; when the data upload application is valid, obtain the Internet of Things data and the link identifier of the item.

In an exemplary embodiment of the present disclosure, obtaining the IoT data and link identification of the item includes: obtaining the IoT data of the item through a smart sensor.

In an exemplary embodiment of the present disclosure, acquiring the IoT data of the item through a smart sensor includes at least one of the following: acquiring link data of the item through a smart sensor to generate the IoT data; acquiring the item through a smart sensor status data to generate the Internet of Things data; and obtain location data of items through smart sensors to generate the Internet of Things data.

According to one aspect of the present disclosure, a blockchain-based item circulation link tracing device is proposed. The device includes: a data module for obtaining the IoT data and link identification of the item; an upload module for passing the IoT The data generates block data and uploads the block data to the blockchain system; a label module is used to generate multi-layer code labels through the link identification; and an association module is used to combine the block data and all the The multi-layer code label is associated with the article, so that the circulation link of the article can be traced through the multi-layer code label.

According to one aspect of the present disclosure, an electronic device is proposed, which includes: one or more processors; a storage device for storing one or more programs; when one or more programs are processed by one or more processors Execution causes one or more processors to implement the method as above.

According to one aspect of the present disclosure, a computer-readable medium is proposed, on which a computer program is stored. When the program is executed by a processor, the method as above is implemented.

According to the blockchain-based article circulation link traceability method, device, electronic equipment and computer-readable medium of the present disclosure, block data is generated through Internet of Things data, and the block data is uploaded to the blockchain system; through the link The identification generates a multi-layer code label; associating the block data, the multi-layer code label and the item; and tracing the circulation link of the article through the multi-layer code label. In the circulation link, users can not only scan and query the data information of the designated blocks before this link, but also record the corresponding data in this link to facilitate further traceability and trustworthy inspection in the future.

It should be understood that the above general description and the following detailed description are only exemplary and do not limit the present disclosure.

Description of the drawings

The above and other objects, features and advantages of the present disclosure will become more apparent by describing in detail example embodiments thereof with reference to the accompanying drawings. The drawings described below are only some embodiments of the present disclosure. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without exerting creative efforts.

Figure 1 is a system block diagram of a blockchain-based article circulation link traceability method and device according to an exemplary embodiment.

Figure 2 is a schematic diagram of an application scenario of a blockchain-based article circulation link traceability method and device according to an exemplary embodiment.

Figure 3 is a flow chart of a blockchain-based traceability method for article circulation links according to an exemplary embodiment.

Figure 4 is a flow chart of a blockchain-based traceability method for article circulation links according to an exemplary embodiment.

Figure 5 is a schematic diagram of a blockchain-based traceability method for article circulation links according to another exemplary embodiment.

Figure 6 is a block diagram of a blockchain-based article circulation link traceability device according to an exemplary embodiment.

FIG. 7 is a block diagram of an electronic device according to an exemplary embodiment.

Figure 8 is a block diagram of a computer-readable medium according to an exemplary embodiment.

Detailed ways

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in various forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concepts of the example embodiments. To those skilled in the art. The same reference numerals in the drawings represent the same or similar parts, and thus their repeated description will be omitted.

Furthermore, the described features, structures or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to provide a thorough understanding of embodiments of the present disclosure. However, those skilled in the art will appreciate that the technical solutions of the present disclosure may be practiced without one or more of the specific details, or other methods, components, devices, steps, etc. may be adopted. In other instances, well-known methods, apparatus, implementations, or operations have not been shown or described in detail to avoid obscuring aspects of the present disclosure.

The block diagrams shown in the figures are functional entities only and do not necessarily correspond to physically separate entities. That is, these functional entities may be implemented in software form, or implemented in one or more hardware modules or integrated circuits, or implemented in different networks and/or processor devices and/or microcontroller devices. entity.

The flowcharts shown in the drawings are only illustrative, and do not necessarily include all contents and operations/steps, nor must they be performed in the order described. For example, some operations/steps can be decomposed, and some operations/steps can be merged or partially merged, so the actual order of execution may change according to the actual situation.

It will be understood that, although the terms first, second, third, etc. may be used herein to describe various components, these components should not be limited by these terms. These terms are used to distinguish one component from another component. Accordingly, a first component discussed below may be termed a second component without departing from the teachings of the presently disclosed concepts. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Those skilled in the art can understand that the accompanying drawings are only schematic diagrams of exemplary embodiments, and the modules or processes in the accompanying drawings are not necessarily necessary to implement the present disclosure, and therefore cannot be used to limit the scope of protection of the present disclosure.

Figure 1 is a system block diagram of a blockchain-based article circulation link traceability method and device according to an exemplary embodiment.

As shown in Figure 1, the system architecture 100 may include logistics terminal equipment 101, 102, 103, a network 104 and server 105, and user terminal equipment 106, 107, 108. The network 104 is used as a medium for providing communication links between the logistics terminal equipment 101, 102, 103 and the server 105. The network 104 is also used to provide a medium for communication links between the user terminal devices 101, 102, 103 and the server 105; the network 104 may include various connection types, such as wired, wireless communication links, optical fiber cables, etc.

Users on the logistics side can use logistics terminal devices 101, 102, 103 to interact with the server 105 through the network 104 to receive or send messages, etc. Various communication client applications can be installed on the terminal devices 101, 102, and 103.

Logistics terminal devices 101, 102, and 103 can be various electronic devices with display screens and supporting web browsing, including but not limited to smart phones, tablet computers, laptop computers, desktop computers, and so on.

Logistics terminal equipment 101, 102, 103 can also include smart sensors, which can collect corresponding valuable data, such as environmental data such as light, PH value, water quality, air, etc. in the production process, as well as various videos, production and processing data, etc. In the transportation environment, it is necessary to collect temperature, humidity, vibration and other data during various transportation processes. These data become valuable data such as traceability.

Users can use user terminal devices 106, 107, 108 to interact with the server 105 through the network 104 to query the current logistics information of the items, etc. Various communication client applications can be installed on the user terminal devices 106, 107, and 108.

The user terminal devices 106, 107, and 108 may be various electronic devices having a display screen and supporting web browsing, including but not limited to smart phones, tablet computers, laptop computers, desktop computers, and the like.

The server 105 may be a server that provides various services, such as a backend management server that stores item logistics information uploaded by users using the logistics terminal devices 101, 102, and 103. The backend management server can record or analyze the status of items in various circulation links, and store the above information in the blockchain in real time.

The server 105 can, for example, obtain the Internet of Things data and link identifiers of the items from the logistics terminal devices 101, 102, and 103; the server 105 can, for example, generate block data through the Internet of Things data and upload the block data to the blockchain. System; the server 105 can, for example, generate a multi-layer code label through the link identifier; the server 105 can, for example, associate the block data, the multi-layer code label and the item; the server 105 can, for example, use the multi-layer code label. Code tags trace the circulation of the items.

The server 105 may be a server that provides various services, such as a backend management server that provides support for the item flow information tracking website browsed by the user using the user terminal devices 106, 107, and 108. The background management server can record or analyze the status of items in various circulation links, and store the above information in the blockchain in real time for user query.

The server 105 may, for example, receive a data access application from the user terminal devices 106, 107, 108. The data access application includes the current time and a single-layer code identifier; the server 105 may, for example, determine the requested data based on the current time and the single-layer code identifier. Whether the data access application complies with the preset rules; the server 105 may, for example, send the block data corresponding to the single-layer code identification to the client when the preset rules are met.

The server 105 may be an entity server, or may be composed of multiple servers, for example. A part of the server 105 may be used as a data processing system in this disclosure, for obtaining Internet of Things data of items or receiving requests from clients; and A part of the server 105 may also be used as a blockchain system in the present disclosure, for storing Internet of Things data and the like.

It should be noted that the blockchain-based article circulation link traceability method provided by the embodiment of the present disclosure can be executed by the server 105. Correspondingly, the article circulation link traceability device can be provided in the server 105. The web page provided for users to upload or download logistics information is generally located in logistics terminal equipment 101, 102, 103 or user terminal equipment 106, 107, 108.

Figure 2 is a schematic diagram of an application scenario of a blockchain-based article circulation link traceability method and device according to an exemplary embodiment.

The disclosed blockchain-based article circulation link traceability method and device workflow can be divided into three parts:

1) The data collection system in each link collects various data that need to be uploaded and traced; for example, various types of smart sensors can be added to each link of circulation to collect corresponding valuable data, such as in production During the transportation process, environmental data such as light, pH value, water quality, air, etc., as well as various videos, production and processing data, etc. need to be collected. In the transportation environment, data such as temperature, humidity, and vibration during various transportation processes need to be collected. These data can It exists in the cloud and is finally uploaded to the chain to become valuable data such as traceability.

2) Printer codes and generates code layer serial numbers; through special printer equipment, multi-layer code labels can be printed, and the multi-layer code can be printed directly on the seal. The printing will automatically form and name the corresponding points on the code surface into a The code layer can be defined on a computer or printer as needed. Different code layers can correspond to different data on the chain.

After the item is produced, the number of layers of multi-layer code blocks can be defined in advance according to the circulation requirements of the item/product. Each code block can store or point to a different data block. At the same time, a dedicated code printing machine can directly print the code. The multi-layer code is printed on the seal. You can print a multi-layer code label for this item. At the same time, the label is assigned an ID when printing. This unique ID corresponding to the label will be stored on the blockchain, and these data blocks correspond to Blocks on the blockchain, so that during the circulation of items, users can use the App to scan and query the data information of the designated blocks before this link, and can also record the corresponding data of this link to facilitate further tracing in the future. and credibility checks.

Moreover, each block will have a timestamp information when it is stored, so that even if an unscrupulous businessman takes photos and prints the same code label at a certain point in the circulation of the item, it will not be forged.

This is because an unscrupulous businessman A attached the same multi-layer code label of the Nth layer by taking pictures and printing in the N link of item circulation. However, at this time, the item had already circulated to the N+1 link. The multi-layer code corresponding to the item The code label labeled with layer N+1 and the multi-layer code label at layer N have expired. When someone scans the multi-layer code label at layer N provided by an unscrupulous businessman, the blockchain system will prompt that the data is forged. , or the data has expired.

Furthermore, an unscrupulous businessman A took pictures and printed out the same N-layer multi-layer code label in the N stage of item circulation. At this time, although the item had not yet circulated to the N+1 stage, the item's corresponding time The stamp has expired, which means that the Nth layer of multi-layer code labels have expired. When someone scans the Nth layer of multi-layer code labels provided by unscrupulous merchants, the blockchain system will prompt that the data has expired, or that the data has expired. The data has expired. Others will not be able to read the corresponding real data, let alone forge the data.

3) The traceability data is uploaded to the chain and the code layer serial number is correspondingly calibrated, and the traceability system reads the data on the chain for traceability confirmation. After the multi-layer code is printed, the system can encrypt the previous data and the resulting hash value can be stored on the chain. At the same time, in each circulation environment, unreasonable data can be stored in the designated code layer. At the same time, the traceability system provides a dedicated It also provides APIs for reading multi-layer code devices or using smart phone Apps to read information. Users can develop a traceability interface on their systems or code reading devices.

The disclosed blockchain-based traceability method for item circulation links prints out and defines multi-layer codes on a dedicated printer, and directly prints the multi-layer codes on the seals of the items. The printer will automatically print out the immediately unreasonable data points. Defined as an unreasonable code layer, this code can correspond to the blocks of the blockchain and store the data that users need to trace or confirm.

In the disclosed method for tracing the circulation of items based on the blockchain, the data is uploaded to the chain and automatically corresponds to the corresponding code layer. The corresponding data encrypted hash value is accessed on the chain. Based on the blockchain, a block will store the above The data of a block, and the same block can only be written once. The multi-layer code in this disclosure only accesses the data before the link, and the data of the same link cannot be written twice, ensuring that the data It cannot be counterfeited and cannot be counterfeited. Among them, the multi-layer code of the present disclosure can be read by a special device or a smartphone, and an API is also provided for authorized third parties to read the corresponding traceability data.

The blockchain-based article circulation link traceability method of the present disclosure will be described in detail below with reference to specific embodiments.

Figure 3 is a flow chart of a blockchain-based traceability method for article circulation links according to an exemplary embodiment. The blockchain-based article circulation link traceability method 30 includes at least steps S302 to S310.

As shown in Figure 3, in S302, the IoT data and link identification of the item are obtained. It may include: obtaining IoT data of the item through smart sensors.

In one embodiment, obtaining the IoT data of the item through a smart sensor may specifically include: obtaining link data of the item through a smart sensor to generate the IoT data; obtaining status data of the item through a smart sensor to generate the IoT data. Internet data; and obtaining location data of items through smart sensors to generate the Internet of Things data.

In S304, block data is generated from the Internet of Things data, and the block data is uploaded to the blockchain system.

Blockchain is essentially a collective name for several technical solutions, including point-to-point peer-to-peer network transmission protocols, cryptographic encryption algorithms, distributed consensus mechanisms, and Nash equilibrium game designs. Based on the combination of these technologies, a decentralized and trustless reliable database can be realized, using an algorithmic proof mechanism to ensure that the information recorded on the chain is traceable and cannot be forged or tampered with.

Blockchain is a chain data structure that combines data blocks in a chronological manner and is cryptographically guaranteed to be an untamperable and unforgeable distributed ledger. Broadly speaking, blockchain technology uses block chain data structures to verify and store data, uses distributed node consensus algorithms to generate and update data, uses cryptography to ensure the security of data transmission and access, and uses automated scripts to A new distributed infrastructure and computing paradigm that uses smart contracts composed of code to program and manipulate data.

In an exemplary embodiment of the present disclosure, generating block data from the Internet of Things data and uploading the block data to the blockchain system includes: processing the Internet of Things data through a blockchain protocol. Encryption processing; and storing the encrypted Internet of Things data into the block.

Among them, encryption technology uses encryption algorithms to encrypt original data, such as RSA265, MD5, etc. The blockchain itself has an account system and assigns a pair of public and private keys to each account. The blockchain signs the encrypted data using the private key of the currently calling user. Then stored into the blockchain data structure. Finally, the blockchain will return a unique blockchain code (hash value) for the data. This code will be permanently recorded in the blockchain.

In S306, a multi-layer code label is generated based on the link identifier. It may include: generating a single-layer code identifier through the link identifier; and printing the single-layer code identifier on a preset single-layer code label to generate the multi-layer code label.

Furthermore, a blockchain system that stores multi-layer codes can provide a traceability technology with a timeline. At the same time, the identification code is no longer flat and easy to forge, but three-dimensional, with each layer representing a site ( N), on this site users need to scan the code to confirm the traceability information or prepare to upload data from the previous link in the supply chain (N-1~N).

In S308, the block data, the multi-layer code tag and the item are associated.

In one embodiment, associating the block data, the multi-layer code tag and the item includes: associating the block data with the single-layer code identification; and associating the multi-layer code Tags are associated with the item.

Wherein, associating the block data with the single-layer code identification includes: associating the block data with the single-layer code identification through a block identification table; wherein the block identification table includes the The header identifier of the block data, the single-layer code identifier and the validity time.

Wherein, associating the multi-layer code label with the article includes: directly printing the multi-layer code on the seal of the article,

In S310, the circulation link of the item is traced through the multi-layer code label. It may include: receiving a data access application from the client, the data access application including the current time and a single-layer code identifier; judging whether the data access application complies with the preset rules based on the current time and the single-layer code identifier; and When the preset rules are met, the block data corresponding to the single-layer code identification is sent to the client.

In one embodiment, obtaining the IoT data and link identifier of the item also includes: obtaining a data upload application for the item. The upload application includes the current link identifier and the target link identifier; based on the preset hierarchical relationship and the current link identifier and target link identifier. The link identifier determines whether the data upload application is valid; when the data upload application is valid, the Internet of Things data and the link identifier of the item are obtained.

Among them, special printing equipment can directly print multi-layer codes on the seal during printing, and can automatically set the printed dot pattern into multiple layers and define layer serial numbers, and then the layer serial numbers and data are stored in the blockchain. It can also be defined in the blockchain system. The latter layer must read the data of the previous layer before reading new data. This avoids being prevented (because the data of the same layer cannot be entered twice). At the same time, during the circulation of items, it can be used to trace and read blockchain data, as well as write new data, thus providing a complete traceability system based on multi-layer codes.

According to the blockchain-based article circulation link tracing method of the present disclosure, block data is generated through Internet of Things data, and the block data is uploaded to the blockchain system; multi-layer code labels are generated through link identifiers; and the The block data, the multi-layer code label and the item are associated; and the method of tracing the circulation link of the item through the multi-layer code label. During the circulation link of the item, the user can scan and query the item. The data information of the designated block before the link can also record the corresponding data of this link to facilitate further traceability and trustworthy inspection in the future.

It should be clearly understood that this disclosure describes how to make and use specific examples, but that the principles of the disclosure are not limited to any details of these examples. Rather, these principles can be applied to many other embodiments based on the teachings of this disclosure.

Figure 4 is a flow chart of a blockchain-based traceability method for article circulation links according to another exemplary embodiment. The process shown in Figure 4 is a detailed description of S310 "Tracing the circulation link of the item through the multi-layer code label" in the process shown in Figure 3 .

As shown in Figure 4, in S402, a data access application is received from the client, and the data access application includes the current time and a single-layer code identifier.

In S404, it is determined whether the data access application complies with preset rules based on the current time and the single-layer code identifier. It may include: comparing the single-layer code identifier with the single-layer code identifier in the block identifier table; when the comparison is consistent, determining whether the current time exceeds the valid time range in the block identifier table; and When the valid time range is not exceeded, it is determined that the data access application complies with the preset rules.

That is, when the current time is within the valid time range of the preset timestamp, the currently uploaded single-layer code identification is the level identification corresponding to the current block data. At this time, the data access application is judged to be a valid application.

In S406, when the preset rules are met, the block data corresponding to the single-layer code identification is sent to the client.

Figure 5 is a schematic diagram of a blockchain-based traceability method for article circulation links according to another exemplary embodiment. The flow shown in Figure 5 is a description of the entire process of the present disclosure.

First, the production end generates the IoT data of the item, which can be the first block data of the item, and also defines the target number of layers of the multi-layer code label. After defining the target number of layers, print the single-layer code label of the current layer. Upload the first block data to the cloud and upload it to the blockchain system, and associate the block in the blockchain system with the current layer in the multi-layer code label. Attach the multi-layer code label to the seal of the item for circulation in the next step.

Then, in the first step of item circulation, the relevant circulation data is obtained in real time. This data can be the second block data of the item. At the same time, based on the defined target layer number of the multi-layer code label, it can be the second block data of the item. Block data is assigned single-layer code labels. Upload the second block data to the cloud and to the blockchain system, and associate the second block in the blockchain system with the current layer in the multi-layer code label. At the same time, the previous block numbers will be invalidated. Attach the multi-layer code label to the seal of the item for circulation in the next step.

By analogy, until the goods reach the target circulation link, the entire process of circulation is completed.

Those skilled in the art can understand that all or part of the steps for implementing the above-described embodiments are implemented as computer programs executed by a CPU. When the computer program is executed by the CPU, the above-mentioned functions defined by the above-mentioned method provided by the present disclosure are performed. The program can be stored in a computer-readable storage medium, which can be a read-only memory, a magnetic disk or an optical disk.

Furthermore, it should be noted that the above-mentioned drawings are only schematic illustrations of processes included in the methods according to the exemplary embodiments of the present disclosure, and are not intended to be limiting. It is readily understood that the processes shown in the above figures do not indicate or limit the temporal sequence of these processes. In addition, it is also easy to understand that these processes may be executed synchronously or asynchronously in multiple modules, for example.

The following are device embodiments of the present disclosure, which can be used to perform method embodiments of the present disclosure. For details not disclosed in the device embodiments of the disclosure, please refer to the method embodiments of the disclosure.

Figure 6 is a block diagram of a blockchain-based article circulation link traceability device according to an exemplary embodiment. The blockchain-based article circulation link traceability device 60 includes: a data module 602, an upload module 604, a label module 606, an association module 608, and a traceability module 610.

The data module 602 is used to obtain the Internet of Things data and link identification of the item;

The upload module 604 is used to generate block data from the Internet of Things data and upload the block data to the blockchain system;

The label module 606 is used to generate multi-layer code labels through the link identification; and

The association module 608 is used to associate the block data, the multi-layer code tag and the item;

The traceability module 610 is used to trace the circulation link of the item through the multi-layer code label.

According to the blockchain-based article circulation link traceability device of the present disclosure, block data is generated through Internet of Things data, and the block data is uploaded to the blockchain system; multi-layer code labels are generated through link identifiers; and the The block data, the multi-layer code label and the item are associated; and the method of tracing the circulation link of the item through the multi-layer code label. During the circulation link of the item, the user can scan and query the item. The data information of the designated block before the link can also record the corresponding data of this link to facilitate further traceability and trustworthy inspection in the future.

FIG. 7 is a block diagram of an electronic device according to an exemplary embodiment.

An electronic device 200 according to this embodiment of the present disclosure is described below with reference to FIG. 7 . The electronic device 200 shown in FIG. 7 is only an example and should not bring any limitations to the functions and usage scope of the embodiments of the present disclosure.

As shown in Figure 7, electronic device 200 is embodied in the form of a general computing device. The components of the electronic device 200 may include, but are not limited to: at least one processing unit 210, at least one storage unit 220, a bus 230 connecting different system components (including the storage unit 220 and the processing unit 210), a display unit 240, and the like.

Wherein, the storage unit stores program code, and the program code can be executed by the processing unit 210, so that the processing unit 210 executes various exemplary methods according to the present disclosure described in the above-mentioned electronic prescription transfer processing method section of this specification. Implementation steps. For example, the processing unit 210 may perform the steps shown in FIG. 3 and FIG. 4 .

The storage unit 220 may include a readable medium in the form of a volatile storage unit, such as a random access storage unit (RAM) 2201 and/or a cache storage unit 2202, and may further include a read-only storage unit (ROM) 2203.

The storage unit 220 may also include a program/utility 2204 having a set of (at least one) program modules 2205 including, but not limited to: an operating system, one or more applications, other program modules, and programs. Data, each of these examples or some combination may include an implementation of a network environment.

Bus 230 may be a local area representing one or more of several types of bus structures, including a memory unit bus or memory unit controller, a peripheral bus, a graphics acceleration port, a processing unit, or using any of a variety of bus structures. bus.

Electronic device 200 may also communicate with one or more external devices 300 (e.g., keyboard, pointing device, Bluetooth device, etc.), may also communicate with one or more devices that enable a user to interact with electronic device 200, and/or with Any device that enables the electronic device 200 to communicate with one or more other computing devices (eg, router, modem, etc.). This communication may occur through input/output (I/O) interface 250. Furthermore, the electronic device 200 may also communicate with one or more networks (eg, a local area network (LAN), a wide area network (WAN), and/or a public network, such as the Internet) through the network adapter 260. Network adapter 260 may communicate with other modules of electronic device 200 via bus 230. It should be understood that, although not shown in the figures, other hardware and/or software modules may be used in conjunction with electronic device 200, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives And data backup storage system, etc.

Through the above description of the embodiments, those skilled in the art can easily understand that the example embodiments described here can be implemented by software, or can be implemented by software combined with necessary hardware. Therefore, as shown in Figure 8, the technical solution according to the embodiment of the present disclosure can be embodied in the form of a software product, and the software product can be stored in a non-volatile storage medium (which can be a CD-ROM, U disk, mobile hard disk etc.) or on a network, including several instructions to cause a computing device (which may be a personal computer, a server, a network device, etc.) to execute the above method according to an embodiment of the present disclosure.

The software product may take the form of any combination of one or more readable media. The readable medium may be a readable signal medium or a readable storage medium. The readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or device, or any combination thereof. More specific examples (non-exhaustive list) of readable storage media include: electrical connection with one or more conductors, portable disk, hard disk, random access memory (RAM), read only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage device, magnetic storage device, or any suitable combination of the above.

The computer-readable storage medium may include a data signal propagated in baseband or as part of a carrier wave carrying readable program code therein. Such propagated data signals may take many forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above. A readable storage medium may also be any readable medium other than a readable storage medium that can transmit, propagate, or transport the program for use by or in connection with an instruction execution system, apparatus, or device. Program code contained on a readable storage medium may be transmitted using any suitable medium, including but not limited to wireless, wired, optical cable, RF, etc., or any suitable combination of the above.

Program code for performing operations of the present disclosure may be written in any combination of one or more programming languages, including object-oriented programming languages such as Java, C++, etc., as well as conventional procedural Programming language—such as "C" or a similar programming language. The program code may execute entirely on the user's computing device, partly on the user's device, as a stand-alone software package, partly on the user's computing device and partly on a remote computing device, or entirely on the remote computing device or server execute on. In situations involving remote computing devices, the remote computing device may be connected to the user computing device through any kind of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computing device (e.g., provided by an Internet service). (business comes via Internet connection).

The above-mentioned computer-readable medium carries one or more programs. When the above-mentioned one or more programs are executed by a device, the computer-readable medium enables the computer-readable medium to achieve the following functions: obtain the Internet of Things data and link identification of the item; through the The Internet of Things data generates block data, and uploads the block data to the block chain system; generates multi-layer code labels through the link identification; combines the block data, the multi-layer code labels and the items Correlation; and tracing the circulation links of the items through the multi-layer code labels.

Those skilled in the art can understand that the above-mentioned modules can be distributed in devices according to the description of the embodiments, or can be modified accordingly in one or more devices that are only different from this embodiment. The modules of the above embodiments can be combined into one module, or further divided into multiple sub-modules.

Through the description of the above embodiments, those skilled in the art can easily understand that the example embodiments described here can be implemented by software, or can be implemented by software combined with necessary hardware. Therefore, the technical solution according to the embodiment of the present disclosure can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (which can be a CD-ROM, U disk, mobile hard disk, etc.) or on the network , including several instructions to cause a computing device (which may be a personal computer, a server, a mobile terminal, a network device, etc.) to execute a method according to an embodiment of the present disclosure.

The exemplary embodiments of the present disclosure have been specifically shown and described above. It is to be understood that the present disclosure is not limited to the details of construction, arrangements, or implementations described herein; rather, the present disclosure is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

Claims (9)

1. The method for tracing the circulation links of the articles based on the blockchain is characterized by comprising the following steps:

acquiring internet of things data and link identification of an article;

generating block data through the data of the Internet of things, and uploading the block data to a block chain system;

generating a multi-layer code label through the link identification;

associating the block data, the multi-layer code tag, and the item; and

tracing the circulation links of the articles through the multi-layer code labels;

generating the multi-layer code label through the link identifier comprises the following steps:

generating a single-layer code identifier through the link identifier; and

printing the single-layer code mark on a preset single-layer code label to generate the multi-layer code label; the corresponding points of the surface of the code are automatically formed and named as a code layer, and different code layers correspond to different data on the chain; the number of layers of a plurality of layers of code blocks is defined in advance, the printed dot patterns are set into a plurality of layers, layer serial numbers are defined, the serial numbers of the layers and data are all provided with block chains, each code block can store or point to different data blocks, the later layer must read the data of the previous layer and then read new data, and the data of the same layer cannot be input twice; each block has a time stamp information when stored;

The tracing of the circulation links of the articles through the multi-layer code label comprises the following steps:

receiving a data access application from a client, wherein the data access application comprises a current time and a single-layer code identifier;

judging whether the data access application accords with a preset rule or not based on the current time and the single-layer code mark; and

and when the preset rule is met, the block data corresponding to the single-layer code identification is sent to the client.

2. The method of claim 1, wherein associating the block data, the multi-layer code tag, and the article comprises:

associating the block data with the single layer code identification; and

the multi-layer code tag is associated with the article.

3. The method of claim 2, wherein associating the block data with the single layer code identification comprises:

associating the block data with the single layer code identification through a block identification table;

the block identification table comprises a header identification of the block data, the single-layer code identification and effective time.

4. The method of claim 1, wherein determining whether the data access application meets a preset rule based on the current time and a single layer code identification comprises:

Comparing the single-layer code mark with the single-layer code mark in the block mark table;

when the comparison is consistent, judging whether the current time exceeds the effective time range in the block identification table; and

and when the effective time range is not exceeded, determining that the data access application accords with a preset rule.

5. The method of claim 1, wherein prior to obtaining the internet of things data and link identification for the item further comprises:

acquiring a data uploading application of an article, wherein the uploading application comprises a current link identifier and a target link identifier;

judging whether the data uploading application is effective or not based on a preset hierarchical relationship, a current link identifier and a target link identifier;

and when the data uploading application is effective, acquiring the Internet of things data and the link identification of the object.

6. The method of claim 1, wherein obtaining internet of things data and link identification of an item comprises:

and acquiring the internet of things data of the article through an intelligent sensor.

7. The method of claim 6, wherein obtaining internet of things data for the item by an intelligent sensor comprises at least one of:

acquiring link data of an article through an intelligent sensor to generate the data of the Internet of things;

Acquiring state data of an article through an intelligent sensor to generate the data of the Internet of things; and

and acquiring position data of the object through an intelligent sensor to generate the data of the Internet of things.

8. Article circulation link traceability device based on block chain, its characterized in that includes:

the data module is used for acquiring the internet of things data and link identification of the article;

the uploading module is used for generating block data through the data of the Internet of things and uploading the block data to a block chain system;

the label module is used for generating a multi-layer code label through the link identification; and

an association module for associating the block data, the multi-layer code tag, and the item;

the tracing module traces the circulation links of the articles through the multi-layer code labels;

generating the multi-layer code label through the link identifier comprises the following steps:

generating a single-layer code identifier through the link identifier; and

printing the single-layer code mark on a preset single-layer code label to generate the multi-layer code label; the corresponding points of the surface of the code are automatically formed and named as a code layer, and different code layers correspond to different data on the chain; the number of layers of a plurality of layers of code blocks is defined in advance, the printed dot patterns are set into a plurality of layers, layer serial numbers are defined, the serial numbers of the layers and data are all provided with block chains, each code block can store or point to different data blocks, the later layer must read the data of the previous layer and then read new data, and the data of the same layer cannot be input twice; each block has a time stamp information when stored;

The tracing of the circulation links of the articles through the multi-layer code label comprises the following steps:

receiving a data access application from a client, wherein the data access application comprises a current time and a single-layer code identifier;

judging whether the data access application accords with a preset rule or not based on the current time and the single-layer code mark; and

and when the preset rule is met, the block data corresponding to the single-layer code identification is sent to the client.

9. An electronic device, comprising:

one or more processors;

a storage means for storing one or more programs;

when executed by the one or more processors, causes the one or more processors to implement the method of any of claims 1-7.