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

Article circulation link tracing method and device based on block chain and electronic equipment Download PDF

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CN110502922B
CN110502922B CN201910742764.0A CN201910742764A CN110502922B CN 110502922 B CN110502922 B CN 110502922B CN 201910742764 A CN201910742764 A CN 201910742764A CN 110502922 B CN110502922 B CN 110502922B
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link
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谢军
曹胜虎
邢有涛
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Shanghai Yuhu Information Technology Co ltd
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Abstract

The disclosure relates to a blockchain-based commodity circulation link tracing method, a blockchain-based commodity circulation link tracing device, electronic equipment and a computer readable medium. The method comprises 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. According to the method, the device, the electronic equipment and the computer readable medium for tracing the circulation link of the article based on the blockchain, in the circulation link of the article, a user can scan and inquire the data information of the appointed block before the link, and can record the corresponding data of the link, so that future further tracing and credible checking are facilitated.

Description

Article circulation link tracing method and device based on block chain and electronic equipment
Technical Field
The disclosure relates to the field of computer information processing, in particular to a block chain-based commodity circulation link tracing method, a block chain-based commodity circulation link tracing device, electronic equipment and a computer readable medium.
Background
The safety of the existing agricultural and sideline foods is a hotspot problem in the current society. The quality and safety problems of agricultural products relate to various links such as production environment, production, harvesting, processing, storage, transportation, sales, supervision, law enforcement and the like. The main sources of the quality safety risks of agricultural products include pollution of the production area, residue of agricultural input products, illegal addition of forbidden substances in the production and processing processes, pollution of pathogenic microorganisms and parasites, fake and false sales, epidemic diseases of animals and plants, toxins of agricultural products and metabolites thereof, raw materials, products, packaging, equipment pollution in the process of collection, storage and transportation, and the like.
At present, some blockchain technologies are applied to tracing of agricultural products, but some two-dimensional codes are often applied to product packaging as tracing inlets, and at present, the following problems exist in the tracing methods:
1) The existing two-dimension code of the article tracing is easy to prevent, particularly, a two-dimension code label which is identical can be easily imitated by photographing and printing, then the label is attached to a fake product, and the user is hard to distinguish, and particularly, a new code technology which can link a blockchain technology and realize data inspection of recorded food in the whole logistics chain process is needed;
2) The existing two-dimensional code is a simple entry, and after the user scans the code, the user can obtain a link or flick a background such as an App and a webpage. There are also some existing methods applied to the whole process of recording to a product by a blockchain, but the tracing technology with time and space is lacked, and a multi-dimensional trusted tracing system cannot be realized.
Therefore, a new blockchain-based commodity circulation link tracing method, device, electronic equipment and computer readable medium are needed.
The above information disclosed in the background section is only for enhancement of understanding of the background of the disclosure and therefore it may include information that does not form the prior art that is already known to a person of ordinary skill in the art.
Disclosure of Invention
In view of this, the present disclosure provides a method, an apparatus, an electronic device, and a computer readable medium for tracing an article circulation link based on a blockchain, where in the circulation link of an article, a user may scan and inquire data information of a designated block before the link, and may record corresponding data of the link, so as to facilitate future further tracing and trusted inspection.
Other features and advantages of the present disclosure will be apparent from the following detailed description, or may be learned in part by the practice of the disclosure.
According to an aspect of the present disclosure, a method for tracing an item circulation link based on a blockchain is provided, the method comprising: 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.
In an exemplary embodiment of the present disclosure, generating the multi-layer code tag by the link identification includes: 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.
In one exemplary embodiment of the present disclosure, associating the block data, the multi-layer code tag, and the article comprises: associating the block data with the single layer code identification; and associating the multi-layer code tag with the article.
In one exemplary embodiment of the present disclosure, 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; the block identification table comprises a header identification of the block data, the single-layer code identification and effective time.
In an exemplary embodiment of the present disclosure, tracing the circulation link of the article by the multi-layer code tag includes: 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 when the preset rule is met, sending the block data corresponding to the single-layer code identifier to the client.
In an exemplary embodiment of the present disclosure, determining whether the data access application meets a preset rule based on the current time and the single layer code identifier includes: 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 determining that the data access application accords with a preset rule when the effective time range is not exceeded.
In an exemplary embodiment of the present disclosure, before obtaining the internet of things data and the link identifier of the article, further includes: 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.
In an exemplary embodiment of the present disclosure, obtaining internet of things data and link identification of an item includes: and acquiring the internet of things data of the article through an intelligent sensor.
In one exemplary embodiment of the present disclosure, acquiring, by the smart sensor, internet of things data of the item includes 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 acquiring position data of the article through an intelligent sensor to generate the data of the Internet of things.
According to an aspect of the present disclosure, a block chain-based article circulation link tracing device is provided, the device 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 the association module is used for associating the block data, the multi-layer code label and the article so as to trace the circulation link of the article through the multi-layer code label.
According to an aspect of the present disclosure, there is provided an electronic device including: one or more processors; a storage means for storing one or more programs; when the one or more programs are executed by the one or more processors, the one or more processors are caused to implement the methods as described above.
According to an aspect of the present disclosure, a computer-readable medium is presented, on which a computer program is stored, which program, when being executed by a processor, implements a method as described above.
According to the method, the device, the electronic equipment and the computer readable medium for tracing the circulation links of the article based on the blockchain, the blockdata are generated through the data of the Internet of things, and the blockdata are uploaded to a blockchain system; generating a multi-layer code label through link identification; associating the block data, the multi-layer code tag, and the item; and in the circulation link of the article, a user can scan and inquire the data information of the appointed block before the link and record the corresponding data of the link by a mode of tracing the circulation link of the article through the multi-layer code label, so that future further tracing and credible checking are facilitated.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The above and other objects, features and advantages of the present disclosure will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings. The drawings described below are merely examples of the present disclosure and other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art.
FIG. 1 is a system block diagram illustrating a blockchain-based method and apparatus for tracking links of circulation of items, in accordance with an exemplary embodiment.
Fig. 2 is a schematic diagram of an application scenario of a method and an apparatus for tracing back a link of circulation of an article based on a blockchain according to an exemplary embodiment.
FIG. 3 is a flowchart illustrating a blockchain-based item circulation link tracing method in accordance with an exemplary embodiment.
FIG. 4 is a flowchart illustrating a blockchain-based item circulation link tracing method in accordance with an exemplary embodiment.
FIG. 5 is a schematic diagram illustrating a blockchain-based item circulation link tracing method in accordance with another exemplary embodiment.
FIG. 6 is a block diagram illustrating a blockchain-based item circulation link traceability device in accordance with an exemplary embodiment.
Fig. 7 is a block diagram of an electronic device, according to an example embodiment.
Fig. 8 is a block diagram of a computer-readable medium shown according to an example embodiment.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments can be embodied in many 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 concept of the example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar parts, and thus a repetitive description thereof 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 give a thorough understanding of embodiments of the disclosure. One skilled in the relevant art will recognize, however, that the disclosed aspects may be practiced without one or more of the specific details, or with other methods, components, devices, steps, etc. In other instances, well-known methods, devices, implementations, or operations are not shown or described in detail to avoid obscuring aspects of the disclosure.
The block diagrams depicted in the figures are merely functional entities and do not necessarily correspond to physically separate entities. That is, the functional entities may be implemented in software, or in one or more hardware modules or integrated circuits, or in different networks and/or processor devices and/or microcontroller devices.
The flow diagrams depicted in the figures are exemplary only, and do not necessarily include all of the elements and operations/steps, nor must they be performed in the order described. For example, some operations/steps may be decomposed, and some operations/steps may be combined or partially combined, so that the order of actual execution may be changed according to actual situations.
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 element from another element. Accordingly, a first component discussed below could be termed a second component without departing from the teachings of the concepts of the present disclosure. As used herein, the term "and/or" includes any one of the associated listed items and all combinations of one or more.
Those skilled in the art will appreciate that the drawings are schematic representations of example embodiments and that the modules or flows in the drawings are not necessarily required to practice the present disclosure, and therefore, should not be taken to limit the scope of the present disclosure.
FIG. 1 is a system block diagram illustrating a blockchain-based method and apparatus for tracking links of circulation of items, in accordance with an exemplary embodiment.
As shown in fig. 1, the system architecture 100 may include logistics terminal devices 101, 102, 103, a network 104 and server 105, user terminal devices 106, 107, 108. The network 104 is a medium used to provide a communication link between the logistics terminal apparatus 101, 102, 103 and the server 105. The network 104 is also the medium used to provide 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, or fiber optic cables, among others.
A user at the logistics end can interact with the server 105 via the network 104 using the logistics terminal apparatus 101, 102, 103 to receive or send messages or the like. Various communication client applications can be installed on the terminal devices 101, 102, 103.
The logistics terminal devices 101, 102, 103 may be various electronic devices with display screens and supporting web browsing, including but not limited to smartphones, tablets, laptop and desktop computers, etc.
The logistics terminal devices 101, 102 and 103 can further comprise intelligent sensors, and the intelligent sensors can collect corresponding valuable data, such as data of environments such as light, PH value, water quality, air and the like, various videos and production processing data and the like in a production link, and data of temperature, humidity, vibration and the like in various transportation processes need to be collected in a transportation environment, and the data become valuable data such as tracing.
A user may interact with the server 105 via the network 104 using the user terminal devices 106, 107, 108 to query for logistical information of the current item, etc. Various communication client applications may be installed on the user terminal devices 106, 107, 108.
The user terminal devices 106, 107, 108 may be a variety of electronic devices having a display screen and supporting web browsing, including but not limited to smartphones, tablets, laptop and desktop computers, and the like.
The server 105 may be a server providing various services, such as a background management server storing the commodity circulation information uploaded by the user using the commodity circulation terminal apparatuses 101, 102, 103. The background management server can record or analyze the state of the article in each circulation link and store the information in the blockchain in real time.
The server 105 may, for example, obtain, by the logistics terminal apparatus 101, 102, 103, internet of things data and link identification of the item; server 105 may generate block data, for example, from the internet of things data and upload the block data to a blockchain system; server 105 may generate a multi-layer code tag, for example, by the link identification; server 105 may, for example, associate the block data, the multi-layer code tag, and the item; the server 105 may trace back the circulation links of the item, for example, by the multi-layer code tag.
The server 105 may be a server providing various services, such as a background management server providing support for tracking web sites by users using item flow information viewed by the user terminal devices 106, 107, 108. The background management server can record or analyze the state of the article in each circulation link and store the information in the blockchain in real time for the user to inquire.
The server 105 may for example receive a data access application from the user terminal devices 106, 107, 108, the data access application comprising a current time and a single layer code identification; the server 105 may determine whether the data access application meets a preset rule, for example, based on the current time and the single layer code identifier; the server 105 may send the block data corresponding to the single-layer code identifier to the client, for example, when a preset rule is met.
Server 105 may be an entity's server, may also be comprised of multiple servers, for example, and some of server 105 may be used, for example, as a data processing system in the present disclosure, to obtain internet of things data for items or to receive requests from clients; and a portion of the server 105 may also be used, for example, as a blockchain system in the present disclosure, for storing internet of things data, and the like.
It should be noted that, the method for tracing the circulation links of the article based on the blockchain provided in the embodiments of the present disclosure may be executed by the server 105, and accordingly, the apparatus for tracing the circulation links of the article may be disposed in the server 105. The web page end provided for the user to upload or download the logistics information is generally located in the logistics terminal devices 101, 102, 103 or the user terminal devices 106, 107, 108.
Fig. 2 is a schematic diagram of an application scenario of a method and an apparatus for tracing back a link of circulation of an article based on a blockchain according to an exemplary embodiment.
The method and the device for tracing the commodity circulation link based on the blockchain disclosed by the disclosure can be divided into 3 parts:
1) The data acquisition system of each link acquires various data which need to be uplink and realize tracing; for example, in each link of each circulation, various intelligent sensors are added to collect corresponding valuable data, such as data of environments such as light, PH, water quality, air, etc., and various videos, production and processing data, etc., in a production link, data of temperature, humidity, vibration, etc. of various transportation processes need to be collected in a transportation environment, and these data can exist in the cloud end and finally be linked up to become traceable equivalent value data.
2) Printing codes by a printer and generating code layer sequence numbers; through special printer equipment, can print the multilayer code label, directly print the multilayer code in sealing department, print the corresponding point that can be with the code surface, constitute automatically and name as a code layer, can define in computer or printer as required, different code layers can correspond the different data on the chain.
After the article is produced, the number of layers of the multi-layer code blocks can be defined in advance according to the circulation requirement of the article/product, each code block can store or point to different data blocks, meanwhile, a special machine for printing codes directly prints the multi-layer code at a seal, a multi-layer code label aiming at the article can be printed, an ID is allocated to the label when the label is printed, the unique ID corresponding to the label can exist on a block chain, and meanwhile, the data blocks correspond to blocks on the block chain, so that in the circulation link of the article, a user can scan and inquire the data information of the appointed block before the link by using an App, and can record the corresponding data of the link, thereby facilitating future further tracing and reliable checking.
Moreover, each block has a time stamp information when being stored, so that even if an illegal person prints and photographs at a certain link of the article circulation, the same code label can not be forged.
Because, some illegal merchant A sticks the same N-layer multi-layer code label through photographing and printing in the N link of the article circulation, but at this time, the article has circulated to the N+1 link, the multi-layer code label corresponding to the article is the N+1-layer code label, the N-layer multi-layer code label has been invalid, and when someone scans the N-layer multi-layer code label provided by the illegal merchant, the blockchain system can prompt that the data is counterfeit or that the data has been invalid.
Further, a certain illegal merchant A prints and photographs the same N-layer multi-layer code label on the N link of the article circulation, and at the moment, the article is not circulated to the N+1 link, the corresponding time stamp of the article is out of date, which means that the N-layer multi-layer code label is out of date, and when someone scans the N-layer multi-layer code label provided by the illegal merchant, the blockchain system can prompt that the data is out of date, or the data is out of date. Other people cannot read the corresponding real data, and cannot forge the data.
3) And the trace-source data uplink and code layer sequence numbers are correspondingly calibrated, and the trace-source system reads the data on the chain to carry out trace-source confirmation. After the multi-layer code is printed, the system can encrypt the previous data, the obtained hash value can be in a chain, meanwhile, in each circulation environment, the data which is not communicated can be stored on a designated code layer, meanwhile, the tracing system provides special multi-layer code reading equipment or information reading equipment by using a smart phone App, and also provides an API, and a user can develop a tracing interface on the system or the code reading equipment.
According to the blockchain-based commodity circulation link tracing method, a plurality of layers of codes are printed and defined by a special printer, the codes are directly printed at the seal of a commodity, the printer automatically defines immediate data points which are not passed as code layers which are not passed, and the codes can correspond to the blockchain blocks and store data which are required by a user to trace or confirm.
According to the method for tracing the commodity circulation links based on the blockchain, the data is uplinked and automatically corresponds to the corresponding code layer, the corresponding data encrypted hash value is accessed on the chain, based on the characteristic that the data of the last block can be stored in one block of the blockchain, and the number of the same block can only be written once, the multilayer code in the method only accesses the data before the links, the data of the same link cannot be written twice, and the fact that the data cannot be forged or imitated is guaranteed. The multi-layer code disclosed by the disclosure can be read through special equipment or a smart phone, and an API is also provided for authorizing a third party to read corresponding traceability data.
The blockchain-based item circulation link tracing method of the present disclosure is described in detail below with reference to specific embodiments.
FIG. 3 is a flowchart illustrating a blockchain-based item circulation link tracing method in accordance with an exemplary embodiment. The blockchain-based item circulation link tracing method 30 at least includes steps S302 to S310.
As shown in fig. 3, in S302, internet of things data and link identification of an item are acquired. May include: and acquiring the internet of things data of the article through an intelligent sensor.
In one embodiment, the acquiring, by the intelligent sensor, the internet of things data of the article may specifically include: 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 acquiring position data of the article through an intelligent sensor to generate the data of the Internet of things.
In S304, block data is generated by the internet of things data, and the block data is uploaded to a blockchain system.
Blockchains are in essence a collective term for several solutions, including peer-to-peer network transport protocols, cryptographic encryption algorithms, distributed consensus mechanisms, and Nash balanced gaming designs. Based on the combination of the technologies, a reliable database with decentralization and trust removal can be realized, and an algorithm proving mechanism is used for guaranteeing traceable traceability, non-falsification and non-falsification of information recorded on a chain.
Blockchains are a kind of chained data structures that combine blocks of data in a sequential manner in time order, and cryptographically guaranteed, non-tamperable and non-counterfeitable distributed ledgers. In broad terms, blockchain technology is a completely new distributed infrastructure and computing paradigm that utilizes blockchain data structures to validate and store data, distributed node consensus algorithms to generate and update data, cryptography to secure data transfer and access, and intelligent contracts composed of automated script code to program and manipulate data.
In one exemplary embodiment of the present disclosure, generating block data from the internet of things data and uploading the block data to a blockchain system includes: encrypting the data of the Internet of things through a block chain protocol; and storing the data of the Internet of things after encryption processing into the block.
Among other things, encryption techniques use encryption algorithms to encrypt raw data, such as RSA265, MD5, etc. The blockchain itself owns the system of accounts and assigns each account a pair of public-key private keys. The blockchain will sign the encrypted data using the private key of the currently invoked user. And then stored into the blockchain data structure. The last blockchain returns a unique blockchain code (hash value) for the data. The code will be permanently recorded in the blockchain.
In S306, a multi-layer code tag is generated by the link identification. May include: 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.
Furthermore, a blockchain system storing multiple layers of codes can provide a tracing technology with a time axis, and meanwhile, the identification codes are not plane and easy to imitate, but three-dimensional, each layer represents a site (N), and a user needs to scan the codes to confirm tracing information or prepare to upload data in the previous links (N-1-N) of a supply chain at the site.
In S308, the block data, the multi-layer code tag, and the article are associated.
In one embodiment, associating the block data, the multi-layer code tag, and the article comprises: associating the block data with the single layer code identification; and associating the multi-layer code tag with the article.
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.
Wherein associating the multi-layer code tag with the article comprises: the multi-layer code may be printed directly at the seal of the article,
in S310, the circulation link of the article is traced through the multi-layer code label. May include: 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 when the preset rule is met, sending the block data corresponding to the single-layer code identifier to the client.
In one embodiment, before obtaining the internet of things data and the link identifier of the article, the method 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.
The special printing equipment can directly print the multi-layer code at the seal position during printing, can automatically set the printed dot pattern into multiple layers and define the layer sequence number, and then the sequence number and the data of the layers are all provided with the blockchain. The method can be defined in a blockchain system, and the later layer must read the data of the previous layer and then read new data, so that prevention (because the data of the same layer cannot be input twice) is avoided, meanwhile, the method can be used for tracing and reading the blockchain data and writing the new data in the process of article circulation, and a complete tracing system based on multi-layer codes is provided.
According to the article circulation link tracing method based on the block chain, block data are generated through the data of the Internet of things, and the block data are uploaded to a block chain system; generating a multi-layer code label through link identification; associating the block data, the multi-layer code tag, and the item; and in the circulation link of the article, a user can scan and inquire the data information of the appointed block before the link and record the corresponding data of the link by a mode of tracing the circulation link of the article through the multi-layer code label, so that future further tracing and credible checking are facilitated.
It should be clearly understood that this disclosure describes how to make and use particular examples, but the principles of this 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 the present disclosure.
FIG. 4 is a flowchart illustrating a blockchain-based item circulation link tracing method in accordance with another exemplary embodiment. The flow shown in fig. 4 is a detailed description of the process shown in fig. 3, S310 "trace back the circulation link of the article through the multi-layer code tag".
As shown in fig. 4, in S402, a data access application from a client is received, where the data access application includes a current time and a single layer code identifier.
In S404, it is determined whether the data access application meets a preset rule based on the current time and the single layer code identifier. May include: 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 determining that the data access application accords with a preset rule when the effective time range is not exceeded.
The current time is within the valid time range of the preset time stamp, the current uploaded single-layer code identifier is the hierarchy identifier corresponding to the current block data, and the data access application is judged to be a valid application at this time.
In S406, when the preset rule is met, the block data corresponding to the single-layer code identifier is sent to the client.
FIG. 5 is a schematic diagram illustrating a blockchain-based item circulation link tracing method in accordance with another exemplary embodiment. The flow shown in fig. 5 is a description of the overall process of the present disclosure.
Firstly, the production end generates the internet of things data of the article, the data can be the first block data of the article, and meanwhile, the target layer number of the multi-layer code label is defined. After the target layer number is defined, the single-layer code label of the current layer is printed. The first block data is uploaded to the cloud and into the blockchain system, associating the block in the blockchain system with the current layer in the multi-layer code tag. And (3) sticking the multi-layer code label at the sealing position of the article so as to circulate in the next link.
And then, in the first link of the circulation of the article, acquiring circulation related data in real time, wherein the data can be second block data of the article, and simultaneously, distributing a single-layer code label for the second block data according to the defined target layer number of the multi-layer code label. And uploading the second block data to the cloud end, uploading the second block data to the block chain system, and associating the second block in the block chain system with the current layer in the multi-layer code tag. And the previous block number is invalidated. And (3) sticking the multi-layer code label at the sealing position of the article so as to circulate in the next link.
And the like until the commodity reaches the target circulation link, and the circulation of the whole process is completed.
Those skilled in the art will appreciate that all or part of the steps implementing the above described embodiments are implemented as a computer program executed by a CPU. The above-described functions defined by the above-described methods provided by the present disclosure are performed when the computer program is executed by a CPU. The program may be stored in a computer readable storage medium, which may be a read-only memory, a magnetic disk or an optical disk, etc.
Furthermore, it should be noted that the above-described figures are merely illustrative of the processes involved in the method according to the exemplary embodiments of the present disclosure, and are not intended to be limiting. It will be readily appreciated that the processes shown in the above figures do not indicate or limit the temporal order of these processes. In addition, it is also readily understood that these processes may be performed synchronously or asynchronously, for example, among a plurality of modules.
The following are device embodiments of the present disclosure that may be used to perform method embodiments of the present disclosure. For details not disclosed in the embodiments of the apparatus of the present disclosure, please refer to the embodiments of the method of the present disclosure.
FIG. 6 is a block diagram illustrating a blockchain-based item circulation link traceability device in accordance with an exemplary embodiment. The block chain-based commodity circulation link traceability device 60 includes: a data module 602, an upload module 604, a tag module 606, an association module 608, and a trace back module 610.
The data module 602 is configured to obtain internet of things data and link identifiers of the items;
the uploading module 604 is configured to generate block data according to the data of the internet of things, and upload the block data to a blockchain system;
the tag module 606 is configured to generate a multi-layer code tag according to the link identifier; and
an association module 608 for associating the block data, the multi-layer code tag, and the item;
the tracing module 610 is configured to trace the circulation link of the article through the multi-layer code label.
According to the article circulation link tracing device based on the block chain, block data are generated through the data of the Internet of things, and the block data are uploaded to a block chain system; generating a multi-layer code label through link identification; associating the block data, the multi-layer code tag, and the item; and in the circulation link of the article, a user can scan and inquire the data information of the appointed block before the link and record the corresponding data of the link by a mode of tracing the circulation link of the article through the multi-layer code label, so that future further tracing and credible checking are facilitated.
Fig. 7 is a block diagram of an electronic device, according to an example embodiment.
An electronic device 200 according to such an embodiment of the present disclosure is described below with reference to fig. 7. The electronic device 200 shown in fig. 7 is merely an example and should not be construed to limit the functionality and scope of use of the disclosed embodiments.
As shown in fig. 7, the electronic device 200 is in the form of a general purpose 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 memory unit 220, a bus 230 connecting the different system components (including the memory unit 220 and the processing unit 210), a display unit 240, and the like.
Wherein the storage unit stores program code executable by the processing unit 210 such that the processing unit 210 performs steps according to various exemplary embodiments of the present disclosure described in the above-described electronic prescription flow processing methods section of the present specification. For example, the processing unit 210 may perform the steps as shown in fig. 3, 4.
The memory unit 220 may include readable media in the form of volatile memory units, such as Random Access Memory (RAM) 2201 and/or cache memory 2202, and may further include Read Only Memory (ROM) 2203.
The storage unit 220 may also include a program/utility 2204 having a set (at least one) of program modules 2205, such program modules 2205 including, but not limited to: an operating system, one or more application programs, other program modules, and program data, each or some combination of which may include an implementation of a network environment.
Bus 230 may be a bus representing one or more of several types of bus structures including a memory unit bus or memory unit controller, a peripheral bus, an accelerated graphics port, a processing unit, or a local bus using any of a variety of bus architectures.
The electronic device 200 may also communicate with one or more external devices 300 (e.g., keyboard, pointing device, bluetooth device, etc.), one or more devices that enable a user to interact with the electronic device 200, and/or any device (e.g., router, modem, etc.) that enables the electronic device 200 to communicate with one or more other computing devices. Such communication may occur through an input/output (I/O) interface 250. Also, the electronic device 200 may communicate with one or more networks such as a Local Area Network (LAN), a Wide Area Network (WAN), and/or a public network, such as the Internet, through a network adapter 260. Network adapter 260 may communicate with other modules of electronic device 200 via bus 230. It should be appreciated that although not shown, other hardware and/or software modules may be used in connection with electronic device 200, including, but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, data backup storage systems, and the like.
From the above description of embodiments, those skilled in the art will readily appreciate that the example embodiments described herein may be implemented in software, or may be implemented in software in combination with the necessary hardware. Thus, as shown in fig. 8, the technical solution according to the embodiments of the present disclosure may be embodied in the form of a software product, which may be stored in a non-volatile storage medium (may be a CD-ROM, a U-disk, a mobile hard disk, etc.) or on a network, and includes several instructions to cause a computing device (may be a personal computer, a server, or a network device, etc.) to perform the above-described method according to the embodiments of the present disclosure.
The software product may employ 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 can be, for example, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or a combination of any of the foregoing. More specific examples (a non-exhaustive list) of the readable storage medium would include the following: an electrical connection having one or more wires, a portable disk, a 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), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
The computer readable storage medium may include a data signal propagated in baseband or as part of a carrier wave, with readable program code embodied therein. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination of the foregoing. A readable storage medium may also be any readable medium that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. Program code embodied on a readable storage medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.
Program code for carrying out operations of the present disclosure may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, C++ or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. 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, partly on a remote computing device, or entirely on the remote computing device or server. In the case of 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., connected via the Internet using an Internet service provider).
The computer-readable medium carries one or more programs, which when executed by one of the devices, cause the computer-readable medium to perform the functions of: 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.
Those skilled in the art will appreciate that the modules may be distributed throughout several devices as described in the embodiments, and that corresponding variations may be implemented in one or more devices that are unique to the embodiments. The modules of the above embodiments may be combined into one module, or may be further split into a plurality of sub-modules.
From the above description of embodiments, those skilled in the art will readily appreciate that the example embodiments described herein may be implemented in software, or in combination with the necessary hardware. Thus, the technical solutions according to the embodiments of the present disclosure may be embodied in the form of a software product, which may be stored in a non-volatile storage medium (may be a CD-ROM, a U-disk, a mobile hard disk, etc.) or on a network, and include several instructions to cause a computing device (may be a personal computer, a server, a mobile terminal, or a network device, etc.) to perform the method according to the embodiments of the present disclosure.
Exemplary embodiments of the present disclosure are specifically illustrated and described above. It is to be understood that this disclosure is not limited to the particular arrangements, instrumentalities and methods of implementation described herein; on the contrary, the 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.
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