CN111369267A - Fruit and vegetable agricultural product tracing method, device and system based on block chain and storage medium - Google Patents
Fruit and vegetable agricultural product tracing method, device and system based on block chain and storage medium Download PDFInfo
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Abstract
The embodiment of the invention discloses a fruit and vegetable agricultural product tracing method, a device, a system and a storage medium based on a block chain, which are applied to nodes of a block chain cloud platform, wherein the method comprises the steps of acquiring current data information of a target fruit and vegetable agricultural product if a data information uploading request initiated by agricultural Internet of things equipment is detected; calling an intelligent contract of a corresponding type according to the type of the data information to verify the data information; if the data information passes the verification, acquiring a current timestamp to digitally sign the timestamp and the current data information of the target fruit and vegetable agricultural product, so as to obtain a corresponding fruit and vegetable information record; and selecting a processing node from the block chain cloud platform according to a preset consensus mechanism to construct a new block, so as to store the fruit and vegetable information record and update the block chain in each node of the block chain cloud platform. The invention can realize the integrity and high efficiency of traceable information acquisition of fruit and vegetable agricultural products and can also improve the use experience of users.
Description
Technical Field
The invention relates to the technical field of block chains, in particular to a fruit and vegetable agricultural product tracing method, device and system based on a block chain and a storage medium.
Background
With the continuous improvement of the material living standard of people, the demand of consumers on agricultural products is gradually changed from quantity growth type to quality growth type, but the quality safety problem of the existing agricultural products often relates to each link of a supply chain, such as a grower, a supplier, a seller and other participants, and the relevant information of the participants can not be integrally provided for the consumers to inquire, so that the information among the participants can not be intercommunicated and shared, and meanwhile, the supervision efficiency of a supervision department is low, so that disputes are easily generated when the safety events of the quality of the agricultural products and the food occur, the quantity of relevant accidents is high, the physical and mental health and the consumption experience of the consumers are seriously influenced, and the competitiveness of the agricultural products in China is also reduced. Moreover, in the current fruit and vegetable tracing system, the acquisition of related data is based on manual intervention, which not only consumes time, but also is difficult to realize the intelligent management and control of each link of the fruit and vegetable supply chain, and the anti-counterfeiting tracing of the fruit and vegetable is difficult to realize.
Disclosure of Invention
The embodiment of the invention provides a fruit and vegetable agricultural product tracing method, device and system based on a block chain and a storage medium, which can not only realize the integrity and high efficiency of the fruit and vegetable agricultural product traceable information acquisition, but also improve the use experience of a user.
In a first aspect, an embodiment of the present invention provides a fruit and vegetable agricultural product tracing method based on a block chain, which is applied to any node of a block chain cloud platform, wherein different nodes correspond to different agricultural internet of things devices, and the method includes:
if a data information uploading request initiated by agricultural Internet of things equipment is detected, acquiring current data information of a target fruit and vegetable agricultural product according to the data information uploading request; the agricultural Internet of things equipment comprises planting data acquisition equipment, processing data acquisition equipment, storage and transportation data acquisition equipment and sales data acquisition equipment, wherein different types of data information are generated by different agricultural Internet of things equipment correspondingly, the data information corresponds to any one of the planting data information, the processing data information, the storage and transportation data information and the sales data information;
calling corresponding types of intelligent contracts according to the types of the data information to verify the data information, wherein the planting data information corresponds to planting intelligent contracts, the processing data information corresponds to processing intelligent contracts, the storage and transportation data information corresponds to storage and transportation intelligent contracts, and the sales data information corresponds to sales intelligent contracts;
if the data information passes the verification of the called intelligent contract, acquiring a current timestamp to carry out digital signature on the timestamp and the current data information of the target fruit and vegetable agricultural product so as to obtain a corresponding fruit and vegetable information record;
and selecting a processing node from the block chain cloud platform according to a preset consensus mechanism to construct a new block, so as to store the corresponding fruit and vegetable information record of the target fruit and vegetable agricultural product, and updating the block chain in each node of the block chain cloud platform, so as to add the new block to the tail of the block chain of each node, thereby completing the chain winding.
In a second aspect, an embodiment of the present invention further provides a fruit and vegetable agricultural product tracing device based on a block chain, which is applied to any node of a block chain cloud platform, where different nodes correspond to different agricultural internet of things devices, and the device includes:
the information acquisition unit is used for acquiring current data information of a target fruit and vegetable agricultural product according to a data information uploading request if the data information uploading request initiated by the agricultural Internet of things equipment is detected; the agricultural Internet of things equipment comprises planting data acquisition equipment, processing data acquisition equipment, storage and transportation data acquisition equipment and sales data acquisition equipment, wherein different types of data information are generated by different agricultural Internet of things equipment correspondingly, the data information corresponds to any one of the planting data information, the processing data information, the storage and transportation data information and the sales data information;
the information verification unit is used for calling the intelligent contracts of corresponding types according to the types of the data information so as to verify the data information, wherein the planting data information corresponds to the planting intelligent contracts, the processing data information corresponds to the processing intelligent contracts, the storage and transportation data information corresponds to the storage and transportation intelligent contracts, and the sales data information corresponds to the sales intelligent contracts;
the information record generating unit is used for acquiring a current timestamp to carry out digital signature on the timestamp and the current data information of the target fruit and vegetable agricultural product if the data information passes the verification of the called intelligent contract, so as to obtain a corresponding fruit and vegetable information record;
and the block chain updating unit is used for selecting a processing node from the block chain cloud platform according to a preset consensus mechanism to construct a new block, so that the corresponding fruit and vegetable information record of the target fruit and vegetable agricultural product is stored, and updating the block chain in each node of the block chain cloud platform to add the new block to the tail of the block chain of each node so as to complete the chain winding.
In a third aspect, the embodiment of the invention also provides a fruit and vegetable agricultural product tracing system based on a block chain, which includes a plurality of agricultural internet of things devices and a plurality of nodes forming a block chain cloud platform, wherein different nodes correspond to different agricultural internet of things devices, each node includes a memory and a processor, the memory stores a computer program, and the processor implements the method when executing the computer program.
In a fourth aspect, the present invention also provides a computer-readable storage medium, which stores a computer program, and the computer program can implement the above method when being executed by a processor.
The embodiment of the invention provides a fruit and vegetable agricultural product tracing method, device and system based on a block chain and a storage medium. The embodiment of the invention adopts the decentralized block chain technology, thereby realizing the integrity and high efficiency of traceable information acquisition of fruit and vegetable agricultural products and improving the use experience of users.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic flow chart of a fruit and vegetable agricultural product tracing method based on a block chain according to an embodiment of the present invention;
fig. 1a is a schematic view of an application scenario of a fruit and vegetable agricultural product tracing method based on a block chain according to an embodiment of the present invention;
fig. 2 is a sub-flow schematic diagram of a fruit and vegetable agricultural product tracing method based on a block chain according to an embodiment of the present invention;
fig. 3 is a schematic flow chart of a fruit and vegetable agricultural product tracing method based on a block chain according to another embodiment of the present invention;
fig. 4 is a schematic block diagram of a fruit and vegetable agricultural product tracing device based on a block chain according to an embodiment of the present invention;
fig. 5 is a schematic block diagram of an information processing unit of a fruit and vegetable agricultural product tracing device based on a block chain according to an embodiment of the present invention;
fig. 6 is a schematic block diagram of a fruit and vegetable agricultural product tracing device based on a block chain according to another embodiment of the present invention;
fig. 7 is a schematic structural composition diagram of a node of a fruit and vegetable agricultural product traceability system based on a block chain according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It is also to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the specification of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
Referring to fig. 1 and fig. 1a, fig. 1 is a schematic flow chart of a fruit and vegetable agricultural product tracing method based on a block chain according to an embodiment of the present application, and fig. 1a is a scene schematic diagram of the fruit and vegetable agricultural product tracing method based on the block chain according to the embodiment of the present application. The fruit and vegetable agricultural product tracing method based on the block chain is applied to any node 11 of a block chain cloud platform 10, different nodes correspond to different agricultural Internet of things devices 20, so that the block chain cloud platform is used as a part of a fruit and vegetable agricultural product tracing system, and the acquisition and management of related data of a target fruit and vegetable agricultural product can be realized through the agricultural Internet of things devices 20 corresponding to the nodes 11 in the block chain cloud platform 10, namely, the acquisition of related data information and the addition of the block chain cloud platform are completed, the decentralized sharing of the data information is realized, the integrity and the high efficiency of traceable information acquisition of the fruit and vegetable agricultural product are realized, and the use experience of a user is improved.
Referring to fig. 1, fig. 1 is a schematic flow chart of a fruit and vegetable agricultural product tracing method based on a block chain according to an embodiment of the present invention. The fruit and vegetable agricultural product tracing method based on the block chain is applied to any node of the block chain cloud platform, different nodes of the block chain cloud platform can correspond to different agricultural Internet of things devices, and relevant data information of target fruit and vegetable agricultural products can be uploaded to the block chain of the nodes of the block chain cloud platform through the agricultural Internet of things devices, so that the traceability processing of the relevant data information is realized, and the use experience of a user is improved. As shown in fig. 1, the fruit and vegetable agricultural product tracing method based on a block chain of the embodiment is applied to any node of a block chain cloud platform, wherein different nodes correspond to different agricultural internet of things devices, and the method specifically includes steps S101 to S104.
Step S101, if a data information uploading request initiated by agricultural Internet of things equipment is detected, acquiring current data information of a target fruit and vegetable agricultural product according to the data information uploading request; the agricultural internet of things equipment comprises planting data acquisition equipment, processing data acquisition equipment, storage and transportation data acquisition equipment and sales data acquisition equipment, and the data information corresponds to any one of the planting data information, the processing data information, the storage and transportation data information and the sales data information.
In this embodiment, the blockchain is a chain-type data mechanism that combines the dispersed data blocks in time sequence, and the data is public and transparent, and a cryptographic algorithm is used to ensure that the data cannot be tampered and forged, and the blockchain belongs to a multi-node decentralized distributed account book, and meanwhile, the nodes can share the data.
According to the fruit and vegetable agricultural product tracing method based on the block chain, relevant data information is collected through agricultural Internet of things equipment, and the relevant data information can be uploaded to each node of a block chain cloud platform to be stored and shared. The data information uploading request not only comprises current data information of a target fruit and vegetable agricultural product, but also comprises a related uploading request for uploading the data information to the block chain cloud platform. Therefore, if a data information uploading request initiated by the agricultural Internet of things equipment is detected, the current data information of the target fruit and vegetable agricultural product can be directly acquired according to the data information uploading request.
Generally, different agricultural internet of things devices can correspondingly generate different kinds of data information. For example, when the agricultural internet of things equipment is planting data acquisition equipment, the data information is corresponding to planting data information; when the agricultural Internet of things equipment is processing data acquisition equipment, the data information is corresponding to processing data information; when the agricultural Internet of things equipment is storage and transportation data acquisition equipment, the data information is correspondingly storage and transportation data information; when the agricultural Internet of things equipment is sales data acquisition equipment, the data information is corresponding to sales data information.
In an embodiment, if the agricultural internet of things device is a planting data acquisition device, the agricultural internet of things device at this time may be a sensor, an observation station, and other devices deployed in a planting place such as a farmland, and the like, and generally, the planting data information may include one or more of a planting unit, a seedling quality, a planting time, a planting location, a planting environment, a chemical input average amount and frequency, and a harvesting time. Through confirming above-mentioned data information and uploading to block chain cloud platform through uploading the request, can be convenient for the user to inquire its relevant planting condition, also can effectively prevent the forgery of system data simultaneously, ensure the authenticity of data information cochain.
In an embodiment, if the agricultural internet of things device is a processing data obtaining device, the agricultural internet of things device may be a related sensor, and the processing data information may include one or more of a processing unit, a processing environment, a type and an amount of an additive, a packaging material, a packaging device, and a shelf life. By confirming the data information and uploading the data information to the block chain cloud platform through the uploading request, a user can conveniently inquire related processing conditions of the user, meanwhile, counterfeiting of data can be effectively prevented, and authenticity of a data information chaining chain is guaranteed.
In an embodiment, if the agricultural internet of things device is a storage and transportation data acquisition device, the agricultural internet of things device at this time may be a related sensor, such as a temperature sensor, a humidity sensor, and the like, and generally, the storage and transportation data information may include one or more of a storage temperature, a storage humidity, a residual amount of the preservative, a transportation route of a transportation vehicle, and transportation environment data. In another embodiment, if the agricultural internet of things device is a sales data acquiring device, the agricultural internet of things device may be a related sales terminal or other device, and the sales data information generally includes one or more of sales enterprise or personnel information, product price, sales time, and sales location. By confirming the data information and uploading the data information to the block chain cloud platform through the uploading request, a user can conveniently inquire related storage and transportation conditions or sales conditions of the user, specific responsibility and related information of each related responsible person can be effectively distinguished, meanwhile, counterfeiting of data can be effectively prevented, and authenticity of a chain of the data information is guaranteed.
And S102, calling corresponding types of intelligent contracts according to the types of the data information to verify the data information, wherein the planting data information corresponds to planting intelligent contracts, the processing data information corresponds to processing intelligent contracts, the storage and transportation data information corresponds to storage and transportation intelligent contracts, and the sales data information corresponds to sales intelligent contracts.
In this embodiment, different nodes correspond to different agricultural internet of things devices, and different agricultural internet of things devices correspond to different data information types, so that different nodes can upload different types of data information to the block chain in the block chain cloud platform. Different nodes are usually preset with different intelligent contracts so as to verify corresponding data. An intelligent contract is a computer program that executes automatically when certain conditions are met. The data information can be verified by correspondingly determining to invoke the corresponding type of intelligent contract, usually by confirming the kind of the data information. Generally, the planting data information is corresponding to a planting intelligent contract, the processing data information is corresponding to a processing intelligent contract, the storage and transportation data information is corresponding to a storage and transportation intelligent contract, and the sales data information is corresponding to a sales intelligent contract.
And S103, if the data information passes the verification of the called intelligent contract, acquiring a current timestamp to carry out digital signature on the timestamp and the current data information of the target fruit and vegetable agricultural product, so as to obtain a corresponding fruit and vegetable information record.
In this embodiment, if the data information passes the verification of the called intelligent contract, it indicates that the next operation can be performed on the data information, that is, the current timestamp can be obtained, and the timestamp and the current data information of the target fruit and vegetable agricultural product are digitally signed, so that the encrypted corresponding fruit and vegetable information record is obtained. Digital signatures guarantee the authenticity of electronic documents or messages in digital communication and provide proof of the original and unmodified documents using cryptographic techniques.
And step S104, selecting a processing node from the block chain cloud platform according to a preset consensus mechanism to construct a new block, so as to store the corresponding fruit and vegetable information record of the target fruit and vegetable agricultural product, and updating the block chain in each node of the block chain cloud platform, so as to add the new block to the tail of the block chain of each node, thereby completing the chain winding.
In this embodiment, the consensus mechanism is a set of mechanisms designed by the distributed ledger for the purpose of making the stored information accurate and consistent. The common recognition mechanism used by the current block chain technology mainly comprises workload certification, rights and interests certification, authorized rights and interests certification, a practical Byzantine fault-tolerant algorithm and the like.
Through a preset consensus mechanism, a processing node can be selected from a block chain cloud platform to construct a new block, the new block can store the corresponding fruit and vegetable information record of the target fruit and vegetable agricultural product, and the fruit and vegetable information record of the target fruit and vegetable agricultural product is subjected to chain winding processing, namely, the new block is added to the tail part of a block chain in the current processing node; and updating the block chains in each node of the block chain cloud platform, so that the updated block chains are obtained, namely, an external client can query the related information of the target fruit and vegetable information in time by reading the information on the block chains, and a user of the client can definitely know the production and transportation conditions of the target fruit and vegetable agricultural products. Specifically, a new block is generally sent to the block chain of each node of the block chain cloud platform by broadcasting, that is, the new block is added to the tail of the block chain of each node to complete uplink update, so that each node can share the relevant fruit and vegetable information records.
In general, planting data information, processing data information, storage and transportation data information, sales data information and the like can be communicated with one another in a block chain cloud platform, and data of each node link forms complete data information of a whole industrial chain, so that the data sharing efficiency can be effectively improved, the reverse tracing is effectively smooth, and a user of a client can inquire related data.
As shown in fig. 2, in an embodiment, the step S104 may specifically include steps S201 to S203.
Step S201, a processing node is selected from a block chain cloud platform according to a preset practical Byzantine fault-tolerant algorithm to construct a new block, and therefore the corresponding fruit and vegetable information records of the target fruit and vegetable agricultural products are stored.
The preset consensus mechanism can be a practical Byzantine fault-tolerant algorithm, a processing node can be selected from the block chain cloud platform through the preset practical Byzantine fault-tolerant algorithm to construct a new block, the processing node can be any node in the block chain cloud platform, and the new block generated through the selected processing node can store the corresponding fruit and vegetable information records of the target fruit and vegetable agricultural products.
And S202, sending the fruit and vegetable information record in the new block to the block chain of each node of the block chain cloud platform through broadcasting.
In order to realize the whole network sharing of the fruit and vegetable information records, the fruit and vegetable information records in the new block can be sent to the block chain of each node of the block chain cloud platform through broadcasting, so that all the block chains on the block chain cloud platform can be guaranteed to be capable of effectively storing relevant data information.
In step S203, each node generates a new block according to the received fruit and vegetable information record and adds the generated new block to the tail of the corresponding block chain, so as to implement the updated uplink of the corresponding block chain.
Each node can generate a new block according to the received fruit and vegetable information record, and can add the generated new block to the tail part of the corresponding block chain, so that the updated uplink of all the block chains is realized. Through above-mentioned specific mode, can effectively preserve the fruit vegetables information record of target fruit vegetables agricultural product for not only make data can't falsify, but also be convenient for trace to the source and inquire.
In an embodiment, after step S102, the method further includes:
step S102a, a pre-stored identity management contract is called to verify the user identity information of each node in the block chain cloud platform; if the verification is passed, the step S103 is executed.
After the data information is verified, the user identity information of each node in the block chain cloud platform can be verified, that is, the user who initiates each node is verified, if the verification is passed, it is indicated that the user corresponding to the agricultural internet of things equipment corresponding to each node is legal, at the moment, after the verification is passed, the step S103 can be continuously executed, and if the verification is not passed, it is indicated that the agricultural internet of things equipment corresponding to a certain node in the block chain cloud platform cannot normally access the block chain cloud platform.
Referring to fig. 3, fig. 3 is a schematic flow chart of a method for reporting life insurance in accordance with another embodiment of the present invention. As shown in fig. 3, the steps of the method include S301 to S304. Steps S301 to S304 are similar to steps S101 to S104 in the above embodiment, and the related explanation and detailed description are not repeated herein, and the following detailed description is the added step in this embodiment.
Step S301, if a data information uploading request initiated by agricultural Internet of things equipment is detected, acquiring current data information of a target fruit and vegetable agricultural product according to the data information uploading request; the agricultural internet of things equipment comprises planting data acquisition equipment, processing data acquisition equipment, storage and transportation data acquisition equipment and sales data acquisition equipment, and the data information corresponds to any one of the planting data information, the processing data information, the storage and transportation data information and the sales data information.
Step S302, according to the type of the data information, calling an intelligent contract of a corresponding type to verify the data information, wherein the planting data information corresponds to the planting intelligent contract, the processing data information corresponds to the processing intelligent contract, the storage and transportation data information corresponds to the storage and transportation intelligent contract, and the sales data information corresponds to the sales intelligent contract.
And step S303, if the data information passes the verification of the called intelligent contract, acquiring a current timestamp to carry out digital signature on the timestamp and the current data information of the target fruit and vegetable agricultural product, so as to obtain a corresponding fruit and vegetable information record.
Step S303a, generating a corresponding Shuoyuan code according to the fruit and vegetable information record of the target fruit and vegetable agricultural product;
in this embodiment, a corresponding traceability code can be generated according to the fruit and vegetable information record of the target fruit and vegetable agricultural product, so that the consumer can conveniently inquire and trace, the management efficiency of the supply chain of the fruit and vegetable agricultural product is further improved, and the main participating bodies of all links of the whole supply chain can directly inquire the relevant real information through the traceability code.
Step S304, a processing node is selected from the block chain cloud platform according to a preset consensus mechanism to construct a new block, so as to store the summary code, and update the block chain in each node of the block chain cloud platform, so as to add the new block to the tail of the block chain of each node, thereby completing the uplink.
In summary, the embodiment of the invention adopts the decentralized block chain technology, so that the integrity and the high efficiency of traceable information acquisition of fruit and vegetable agricultural products are realized, and the use experience of users is improved.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by a computer program, which can be stored in a computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. The storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), or the like.
Referring to fig. 4, in response to the above method for tracing fruit and vegetable agricultural products based on a block chain, an embodiment of the present invention further provides a device for tracing fruit and vegetable agricultural products based on a block chain, where the device for tracing fruit and vegetable agricultural products is applied to any node of a block chain cloud platform, where different nodes correspond to different pieces of agricultural internet of things equipment, and the device 100 includes: an information acquisition unit 101, an information verification unit 102, an information record generation unit 103, and a block chain update unit 104.
The information acquisition unit 101 is configured to, if a data information uploading request initiated by an agricultural internet of things device is detected, acquire current data information of a target fruit and vegetable agricultural product according to the data information uploading request; the agricultural internet of things equipment comprises planting data acquisition equipment, processing data acquisition equipment, storage and transportation data acquisition equipment and sales data acquisition equipment, and the data information corresponds to any one of the planting data information, the processing data information, the storage and transportation data information and the sales data information.
In this embodiment, the blockchain is a chain-type data mechanism that combines the dispersed data blocks in time sequence, and the data is public and transparent, and a cryptographic algorithm is used to ensure that the data cannot be tampered and forged, and the blockchain belongs to a multi-node decentralized distributed account book, and meanwhile, the nodes can share the data.
According to the fruit and vegetable agricultural product tracing method based on the block chain, relevant data information is collected through agricultural Internet of things equipment, and the relevant data information can be uploaded to each node of a block chain cloud platform to be stored and shared. The data information uploading request not only comprises current data information of a target fruit and vegetable agricultural product, but also comprises a related uploading request for uploading the data information to the block chain cloud platform. Therefore, if a data information uploading request initiated by the agricultural Internet of things equipment is detected, the current data information of the target fruit and vegetable agricultural product can be directly acquired according to the data information uploading request.
Generally, different agricultural internet of things devices can correspondingly generate different kinds of data information. For example, when the agricultural internet of things equipment is planting data acquisition equipment, the data information is corresponding to planting data information; when the agricultural Internet of things equipment is processing data acquisition equipment, the data information is corresponding to processing data information; when the agricultural Internet of things equipment is storage and transportation data acquisition equipment, the data information is correspondingly storage and transportation data information; when the agricultural Internet of things equipment is sales data acquisition equipment, the data information is corresponding to sales data information.
In an embodiment, if the agricultural internet of things device is a planting data acquisition device, the agricultural internet of things device at this time may be a sensor, an observation station, and other devices deployed in a planting place such as a farmland, and the like, and generally, the planting data information may include one or more of a planting unit, a seedling quality, a planting time, a planting location, a planting environment, a chemical input average amount and frequency, and a harvesting time. Through confirming above-mentioned data information and uploading to block chain cloud platform through uploading the request, can be convenient for the user to inquire its relevant planting condition, also can effectively prevent the forgery of system data simultaneously, ensure the authenticity of data information cochain.
In an embodiment, if the agricultural internet of things device is a processing data obtaining device, the agricultural internet of things device may be a related sensor, and the processing data information may include one or more of a processing unit, a processing environment, a type and an amount of an additive, a packaging material, a packaging device, and a shelf life. By confirming the data information and uploading the data information to the block chain cloud platform through the uploading request, a user can conveniently inquire related processing conditions of the user, meanwhile, counterfeiting of data can be effectively prevented, and authenticity of a data information chaining chain is guaranteed.
In an embodiment, if the agricultural internet of things device is a storage and transportation data acquisition device, the agricultural internet of things device at this time may be a related sensor, such as a temperature sensor, a humidity sensor, and the like, and generally, the storage and transportation data information may include one or more of a storage temperature, a storage humidity, a residual amount of the preservative, a transportation route of a transportation vehicle, and transportation environment data. In another embodiment, if the agricultural internet of things device is a sales data acquiring device, the agricultural internet of things device may be a related sales terminal or other device, and the sales data information generally includes one or more of sales enterprise or personnel information, product price, sales time, and sales location. By confirming the data information and uploading the data information to the block chain cloud platform through the uploading request, a user can conveniently inquire related storage and transportation conditions or sales conditions of the user, specific responsibility and related information of each related responsible person can be effectively distinguished, meanwhile, counterfeiting of data can be effectively prevented, and authenticity of a chain of the data information is guaranteed.
The information verification unit 102 is configured to invoke an intelligent contract of a corresponding type according to the type of the data information to verify the data information, where the planting data information corresponds to a planting intelligent contract, the processing data information corresponds to a processing intelligent contract, the storage and transportation data information corresponds to a storage and transportation intelligent contract, and the sales data information corresponds to a sales intelligent contract.
In this embodiment, different nodes correspond to different agricultural internet of things devices, and different agricultural internet of things devices correspond to different data information types, so that different nodes can upload different types of data information to the block chain in the block chain cloud platform. Different nodes are usually preset with different intelligent contracts so as to verify corresponding data. An intelligent contract is a computer program that executes automatically when certain conditions are met. The data information can be verified by correspondingly determining to invoke the corresponding type of intelligent contract, usually by confirming the kind of the data information. Generally, the planting data information is corresponding to a planting intelligent contract, the processing data information is corresponding to a processing intelligent contract, the storage and transportation data information is corresponding to a storage and transportation intelligent contract, and the sales data information is corresponding to a sales intelligent contract.
And the information record generating unit 103 is configured to, if the data information passes the verification of the called intelligent contract, obtain a current timestamp, and perform digital signature on the timestamp and the current data information of the target fruit and vegetable agricultural product, so as to obtain a corresponding fruit and vegetable information record.
In this embodiment, if the data information passes the verification of the called intelligent contract, it indicates that the next operation can be performed on the data information, that is, the current timestamp can be obtained, and the timestamp and the current data information of the target fruit and vegetable agricultural product are digitally signed, so that the encrypted corresponding fruit and vegetable information record is obtained. Digital signatures guarantee the authenticity of electronic documents or messages in digital communication and provide proof of the original and unmodified documents using cryptographic techniques.
The block chain updating unit 104 is configured to select a processing node from the block chain cloud platform according to a preset consensus mechanism to construct a new block, so as to store the corresponding fruit and vegetable information record of the target fruit and vegetable agricultural product, and update the block chain in each node of the block chain cloud platform, so as to add the new block to the tail of the block chain of each node, thereby completing the chain winding.
In this embodiment, the consensus mechanism is a set of mechanisms designed by the distributed ledger for the purpose of making the stored information accurate and consistent. The common recognition mechanism used by the current block chain technology mainly comprises workload certification, rights and interests certification, authorized rights and interests certification, a practical Byzantine fault-tolerant algorithm and the like.
Through a preset consensus mechanism, a processing node can be selected from a block chain cloud platform to construct a new block, the new block can store the corresponding fruit and vegetable information record of the target fruit and vegetable agricultural product, and the fruit and vegetable information record of the target fruit and vegetable agricultural product is subjected to chain winding processing, namely, the new block is added to the tail part of a block chain in the current processing node; and updating the block chains in each node of the block chain cloud platform, so that the updated block chains are obtained, namely, an external client can query the related information of the target fruit and vegetable information in time by reading the information on the block chains, and a user of the client can definitely know the production and transportation conditions of the target fruit and vegetable agricultural products. Specifically, a new block is generally sent to the block chain of each node of the block chain cloud platform by broadcasting, that is, the new block is added to the tail of the block chain of each node to complete uplink update, so that each node can share the relevant fruit and vegetable information records.
In general, planting data information, processing data information, storage and transportation data information, sales data information and the like can be communicated with one another in a block chain cloud platform, and data of each node link forms complete data information of a whole industrial chain, so that the data sharing efficiency can be effectively improved, the reverse tracing is effectively smooth, and a user of a client can inquire related data.
As shown in fig. 5, in an embodiment, the block chain updating unit 104 may specifically include a node selecting unit 201, a broadcast transmitting unit 202, and a block adding unit 203.
The node selecting unit 201 is configured to select a processing node from the block chain cloud platform according to a preset practical byzantine fault-tolerant algorithm to construct a new block, so as to store the corresponding fruit and vegetable information record of the target fruit and vegetable agricultural product.
The preset consensus mechanism can be a practical Byzantine fault-tolerant algorithm, a processing node can be selected from the block chain cloud platform through the preset practical Byzantine fault-tolerant algorithm to construct a new block, the processing node can be any node in the block chain cloud platform, and the new block generated through the selected processing node can store the corresponding fruit and vegetable information records of the target fruit and vegetable agricultural products.
And the broadcast sending unit 202 is configured to send the fruit and vegetable information record in the new block to the block chain of each node of the block chain cloud platform through broadcast.
In order to realize the whole network sharing of the fruit and vegetable information records, the fruit and vegetable information records in the new block can be sent to the block chain of each node of the block chain cloud platform through broadcasting, so that all the block chains on the block chain cloud platform can be guaranteed to be capable of effectively storing relevant data information.
And the block adding unit 203 is used for generating a new block by each node according to the received fruit and vegetable information record and adding the generated new block to the tail part of the corresponding block chain so as to realize the updated uplink of the corresponding block chain.
Each node can generate a new block according to the received fruit and vegetable information record, and can add the generated new block to the tail part of the corresponding block chain, so that the updated uplink of all the block chains is realized. Through above-mentioned specific mode, can effectively preserve the fruit vegetables information record of target fruit vegetables agricultural product for not only make data can't falsify, but also be convenient for trace to the source and inquire.
In an embodiment, after the information verifying unit 102, the following units may be further included:
the identity authentication unit 102a is configured to invoke a pre-stored identity management contract to authenticate user identity information of each node in the blockchain cloud platform; if the verification is passed, the information record generation unit 103 is executed.
After the data information is verified, the user identity information of each node in the block chain cloud platform can be verified, that is, the user who initiates each node is verified, if the verification is passed, it is indicated that the user corresponding to the agricultural internet of things equipment corresponding to each node is legal, at the moment, after the verification is passed, the information record generating unit 103 can be continuously executed, and if the verification is not passed, it is indicated that the agricultural internet of things equipment corresponding to a certain node in the block chain cloud platform cannot normally access the block chain cloud platform.
Referring to fig. 6, in response to the method for tracing fruit and vegetable agricultural products based on a block chain, another embodiment of the present invention further provides a device for tracing fruit and vegetable agricultural products based on a block chain, where the device 300 includes: an information acquisition unit 301, an information verification unit 302, an information record generation unit 303, a summary code generation unit 303a, and a block chain update unit 304.
The information acquisition unit 301 is configured to, if a data information uploading request initiated by an agricultural internet of things device is detected, acquire current data information of a target fruit and vegetable agricultural product according to the data information uploading request; the agricultural internet of things equipment comprises planting data acquisition equipment, processing data acquisition equipment, storage and transportation data acquisition equipment and sales data acquisition equipment, and the data information corresponds to any one of the planting data information, the processing data information, the storage and transportation data information and the sales data information.
The information verification unit 302 is configured to invoke an intelligent contract of a corresponding type according to the type of the data information to verify the data information, where the planting data information corresponds to a planting intelligent contract, the processing data information corresponds to a processing intelligent contract, the storage and transportation data information corresponds to a storage and transportation intelligent contract, and the sales data information corresponds to a sales intelligent contract.
And the information record generating unit 303 is configured to obtain a current timestamp if the data information passes the verification of the called intelligent contract, and perform digital signature on the timestamp and the current data information of the target fruit and vegetable agricultural product to obtain a corresponding fruit and vegetable information record.
And the source code generating unit 303a is configured to generate a corresponding source code according to the fruit and vegetable information record of the target fruit and vegetable agricultural product.
In this embodiment, a corresponding traceability code can be generated according to the fruit and vegetable information record of the target fruit and vegetable agricultural product, so that the consumer can conveniently inquire and trace, the management efficiency of the supply chain of the fruit and vegetable agricultural product is further improved, and the main participating bodies of all links of the whole supply chain can directly inquire the relevant real information through the traceability code.
A block chain updating unit 304, configured to select a processing node from the block chain cloud platform according to a preset consensus mechanism to construct a new block, so as to store the summary code, and update the block chain in each node of the block chain cloud platform, so as to add the new block to the tail of the block chain of each node, thereby completing the uplink.
Fig. 7 is a schematic structural composition diagram of a node 400 of the fruit and vegetable agricultural product traceability system based on a block chain. Referring to fig. 7, the fruit and vegetable agricultural product tracing system includes a plurality of agricultural internet of things devices and a plurality of nodes 400 constituting a block chain cloud platform, where different nodes 400 correspond to different agricultural internet of things devices, each node includes a processor 402 and a memory connected by a system bus 401, where the memory may include a nonvolatile storage medium 403 and an internal memory 404. The non-volatile storage medium 403 may store an operating system 4031 and a computer program 4032, and when the computer program 4032 is executed, the processor 402 may be enabled to execute a method for tracing fruit and vegetable agricultural products based on a blockchain.
The processor 402 is used for providing computing and control capability, and supporting the operation of the node 400 of the whole fruit and vegetable agricultural product tracing system. The internal memory 404 provides an environment for running the computer program 4032 in the non-volatile storage medium 403, and when the computer program 4032 is executed by the processor 402, the processor 402 can be enabled to execute a fruit and vegetable agricultural product tracing method based on a block chain.
Those skilled in the art will understand that the structure shown in fig. 7 is only a block diagram of a part of the structure related to the present application, and does not constitute a limitation on the fruit and vegetable agricultural product traceability system to which the present application is applied, and a specific fruit and vegetable agricultural product traceability system may include more or less components than those shown in the figure, or combine some components, or have a different arrangement of components. The processor 402 is configured to run a computer program 4032 stored in the memory to implement the steps of the method for tracing fruit and vegetable agricultural products based on the block chain in the above embodiment.
It should be understood that in the embodiment of the present Application, the Processor 402 may be a Central Processing Unit (CPU), and the Processor 402 may also be other general-purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field-Programmable gate arrays (FPGAs) or other Programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and the like. Wherein a general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
It will be understood by those skilled in the art that all or part of the flow of the method implementing the above embodiments may be implemented by a computer program instructing associated hardware. The computer program may be stored in a storage medium, which is a computer-readable storage medium. The computer program is executed by at least one processor in the computer system to implement the flow steps of the embodiments of the method described above.
Accordingly, the present invention also provides a storage medium. The storage medium may be a computer-readable storage medium. The storage medium stores a computer program, and the computer program causes the processor to execute the steps of the fruit and vegetable agricultural product tracing method based on the block chain in the embodiment.
The storage medium is an entity and non-transitory storage medium, and may be various entity storage media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-only memory (ROM), a magnetic disk, or an optical disk.
Those of ordinary skill in the art will appreciate that the elements and algorithm steps of the examples described in connection with the embodiments disclosed herein may be embodied in electronic hardware, computer software, or combinations of both, and that the components and steps of the examples have been described in a functional general in the foregoing description for the purpose of illustrating clearly the interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
In the embodiments provided in the present invention, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative. For example, the division of each unit is only one logic function division, and there may be another division manner in actual implementation. For example, various elements or components may be combined or may be integrated into another system, or some features may be omitted, or not implemented.
While the invention has been described with reference to specific embodiments, the invention is not limited thereto, and various equivalent modifications and substitutions can be easily made by those skilled in the art within the technical scope of the invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The fruit and vegetable agricultural product tracing method based on the block chain is applied to any node of a block chain cloud platform, wherein different nodes correspond to different agricultural Internet of things devices, and the method comprises the following steps:
if a data information uploading request initiated by agricultural Internet of things equipment is detected, acquiring current data information of a target fruit and vegetable agricultural product according to the data information uploading request; the agricultural Internet of things equipment comprises planting data acquisition equipment, processing data acquisition equipment, storage and transportation data acquisition equipment and sales data acquisition equipment, wherein different types of data information are generated by different agricultural Internet of things equipment correspondingly, the data information corresponds to any one of the planting data information, the processing data information, the storage and transportation data information and the sales data information;
calling corresponding types of intelligent contracts according to the types of the data information to verify the data information, wherein the planting data information corresponds to planting intelligent contracts, the processing data information corresponds to processing intelligent contracts, the storage and transportation data information corresponds to storage and transportation intelligent contracts, and the sales data information corresponds to sales intelligent contracts;
if the data information passes the verification of the called intelligent contract, acquiring a current timestamp to carry out digital signature on the timestamp and the current data information of the target fruit and vegetable agricultural product so as to obtain a corresponding fruit and vegetable information record;
and selecting a processing node from the block chain cloud platform according to a preset consensus mechanism to construct a new block, so as to store the corresponding fruit and vegetable information record of the target fruit and vegetable agricultural product, and updating the block chain in each node of the block chain cloud platform, so as to add the new block to the tail of the block chain of each node, thereby completing the chain winding.
2. The fruit and vegetable agricultural product tracing method according to claim 1, wherein after the step of calling the corresponding type of intelligent contract according to the type of the data information to verify the data information, the method further comprises:
calling a pre-stored identity management contract to verify the user identity information of each node in the block chain cloud platform;
and if the verification is passed, selecting a processing node from the block chain cloud platform according to a preset consensus mechanism to construct a new block, so as to store the corresponding fruit and vegetable information record of the target fruit and vegetable agricultural product, and updating the block chain in each node of the block chain cloud platform, so as to add the new block to the tail part of the block chain of each node, thereby completing the step of chain winding.
3. The fruit and vegetable agricultural product tracing method of claim 1, wherein the step of selecting a processing node from a block chain cloud platform according to a preset consensus mechanism to construct a new block, thereby storing the fruit and vegetable information record corresponding to the target fruit and vegetable agricultural product, and updating the block chain in each node of the block chain cloud platform to add the new block to the tail of the block chain of each node to complete the chain winding comprises;
selecting a processing node from a block chain cloud platform according to a preset practical Byzantine fault-tolerant algorithm to construct a new block, and storing corresponding fruit and vegetable information records of the target fruit and vegetable agricultural products;
the fruit and vegetable information records in the new block are sent to a block chain of each node of a block chain cloud platform through broadcasting;
and each node generates a new block according to the received fruit and vegetable information record and adds the generated new block to the tail part of the corresponding block chain so as to realize the updated uplink of the corresponding block chain.
4. The fruit and vegetable agricultural product tracing method according to claim 1, wherein after the step of obtaining the current timestamp to digitally sign the timestamp and the current data information of the target fruit and vegetable agricultural product if the data information passes the verification of the called intelligent contract, the method further comprises:
generating a corresponding Shuiyuan code according to the fruit and vegetable information record of the target fruit and vegetable agricultural product;
and selecting a processing node from the blockchain cloud platform according to a preset consensus mechanism to construct a new block, so as to store the summary code, and updating the blockchain in each node of the blockchain cloud platform, so as to add the new block to the tail part of the blockchain of each node, thereby completing the uplink.
5. The fruit and vegetable agricultural product traceability method of claim 1, wherein the planting data information comprises one or more of planting units, seedling quality, planting time, planting location, planting environment, chemical input average amount and frequency, and harvesting time.
6. The fruit and vegetable agricultural product traceability method of claim 5, wherein the processing data information comprises one or more of processing units, processing environment, types and amounts of additives, packaging materials, packaging equipment, and shelf life.
7. The fruit and vegetable agricultural product tracing method of claim 6, wherein the storage and transportation data information comprises one or more of storage temperature, storage humidity, residual quantity of preservative, transportation route of transportation vehicle and transportation environment data; the sales data information includes one or more of sales business or personnel information, product price, time of sale, and place of sale.
8. The utility model provides a fruit vegetables agricultural product device of traceing back based on block chain which characterized in that is applied to in any node of block chain cloud platform, wherein, different nodes correspond different agricultural thing networking device, the device includes:
the information acquisition unit is used for acquiring current data information of a target fruit and vegetable agricultural product according to a data information uploading request if the data information uploading request initiated by the agricultural Internet of things equipment is detected; the agricultural Internet of things equipment comprises planting data acquisition equipment, processing data acquisition equipment, storage and transportation data acquisition equipment and sales data acquisition equipment, wherein different types of data information are generated by different agricultural Internet of things equipment correspondingly, the data information corresponds to any one of the planting data information, the processing data information, the storage and transportation data information and the sales data information;
the information verification unit is used for calling the intelligent contracts of corresponding types according to the types of the data information so as to verify the data information, wherein the planting data information corresponds to the planting intelligent contracts, the processing data information corresponds to the processing intelligent contracts, the storage and transportation data information corresponds to the storage and transportation intelligent contracts, and the sales data information corresponds to the sales intelligent contracts;
the information record generating unit is used for acquiring a current timestamp to carry out digital signature on the timestamp and the current data information of the target fruit and vegetable agricultural product if the data information passes the verification of the called intelligent contract, so as to obtain a corresponding fruit and vegetable information record;
and the block chain updating unit is used for selecting a processing node from the block chain cloud platform according to a preset consensus mechanism to construct a new block, so that the corresponding fruit and vegetable information record of the target fruit and vegetable agricultural product is stored, and updating the block chain in each node of the block chain cloud platform to add the new block to the tail of the block chain of each node so as to complete the chain winding.
9. The fruit and vegetable agricultural product tracing system based on the block chain is characterized by comprising a plurality of agricultural Internet of things devices and a plurality of nodes forming a block chain cloud platform, wherein different nodes correspond to different agricultural Internet of things devices, each node comprises a memory and a processor, a computer program is stored in the memory, and the processor realizes the method according to any one of claims 1-7 when executing the computer program.
10. A computer-readable storage medium, characterized in that the storage medium stores a computer program which, when executed by a processor, causes the processor to carry out the method according to any one of claims 1-7.
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