CN108920978B - Block chain technology-based safe production information sharing method - Google Patents

Block chain technology-based safe production information sharing method Download PDF

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Publication number
CN108920978B
CN108920978B CN201810672911.7A CN201810672911A CN108920978B CN 108920978 B CN108920978 B CN 108920978B CN 201810672911 A CN201810672911 A CN 201810672911A CN 108920978 B CN108920978 B CN 108920978B
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information
enterprise
safety management
equipment
management
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CN108920978A (en
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李迪
孙建中
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Saifeite Engineering Technology Group Co ltd
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Saifeite Engineering Technology Group Co ltd
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    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/60Protecting data
    • G06F21/64Protecting data integrity, e.g. using checksums, certificates or signatures
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06QINFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q10/00Administration; Management
    • G06Q10/06Resources, workflows, human or project management; Enterprise or organisation planning; Enterprise or organisation modelling
    • G06Q10/063Operations research, analysis or management
    • G06Q10/0635Risk analysis of enterprise or organisation activities
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06QINFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q50/00Systems or methods specially adapted for specific business sectors, e.g. utilities or tourism
    • G06Q50/10Services
    • G06Q50/26Government or public services
    • G06Q50/265Personal security, identity or safety

Abstract

The invention discloses a safe production information sharing method based on a block chain technology, which belongs to the technical field of safe production information sharing, and has the technical scheme that an enterprise end is provided with information management equipment and information publishing equipment; inputting the category and safety management information of an enterprise through information management equipment, and uploading the safety management information to a block chain module by the information management equipment; classifying the uploaded safety management information through an intelligent contract of the block chain, sending the safety management information of the corresponding category to information issuing equipment of enterprises of the corresponding category, and issuing the safety management information; the block chain module stores the uploaded safety management information through a distributed information book; the problems that resource enterprise information leakage is easy to occur in the transmission and sharing of the existing production safety information and the transmission information is not symmetrical and lags are solved; the enterprise can receive the safety management information in the field in time and leakage of enterprise information in the information sharing process is reduced.

Description

Block chain technology-based safe production information sharing method
Technical Field
The invention relates to a block chain technology-based safe production information sharing method, and belongs to the technical field of safe production information sharing.
Background
The method is characterized in that corresponding accident prevention and control measures are taken to avoid accidents causing personal injury and property loss in production and management activities, so that the production process is carried out under the condition meeting the regulations, the personal safety and health of workers are ensured, equipment and facilities are prevented from being damaged, the environment is prevented from being damaged, and the production and management activities are ensured to be smoothly carried out. In daily production and life, safety accidents are often caused due to the fact that safety management is not standard and artificial reasons, the accident reasons and experiences are precious, the method has great significance for reducing similar accidents of other similar enterprises, and various production type enterprises are also willing to learn and learn the experiences so as to improve the safety management level of the enterprises. However, in actual social activities, each enterprise that has a security accident often only internally propagates such information and does not communicate externally, considering the influence of the accident on its own enterprise.
At present, the information transmission mainly comprises transmission ways such as television, radio, newspaper, internet and the like, the information coverage is wide, and the information is complicated, but related information data cannot be accurately transmitted to people needing information change. And because there is always hysteresis between traditional information publishing and information reading, when the relevant people read the information of interest, the information often loses timeliness.
The invention discloses a Chinese patent application with application publication number CN106339782A, which discloses an Internet-based comprehensive resource public creation and sharing platform for safety production, and the platform comprises an Internet platform for sharing information, matching supply and demand and social functions, an offline activity for carrying offline communication, safety training, content production and application, a platform for carrying classification and summarization of supply and demand of production technology services, and a database for carrying out data mining, big data calculation and statistics and realizing prediction of which hidden danger is pressed, safety risk management and safety resource development and utilization.
The safe production comprehensive resource crowd-created sharing platform based on the internet is used for issuing information through the internet and realizing the functions of information sharing, supply and demand matching, social contact and the like through the internet; but the information transmission still depends on the traditional internet as a medium, and the corresponding information receiving people still cannot accurately receive the corresponding information in time due to the asymmetry lag of the information transmission; and the client information cannot be well protected anonymously during information dissemination.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a block chain technology-based safe production information sharing method, which can enable enterprises to receive safety management information in the field in time and reduce the leakage of enterprise information in the information sharing process.
The technical purpose of the invention is realized by the following technical scheme: a safe production information sharing method based on block chain technology is characterized in that an enterprise end is provided with information management equipment and information release equipment; inputting the category and safety management information of an enterprise through information management equipment, and uploading the safety management information to a block chain module by the information management equipment; classifying the uploaded safety management information through an intelligent contract of the block chain module, sending the safety management information of the corresponding category to information issuing equipment of enterprises of the corresponding category, and issuing the safety management information; and the block chain module stores the uploaded safety management information through a distributed information account book.
According to the technical scheme, the enterprise end is provided with the information management equipment and the information publishing equipment, the enterprise end inputs the security management information of enterprise daily management through the information management equipment, the management equipment uploads the security management information to the block chain module, the uploaded security management information is classified through an intelligent contract of the block chain, the security management information of the corresponding type is sent to the information publishing equipment of the enterprise of the corresponding type, and the security management information is published; therefore, enterprises can receive safety management information in the field in time; the related information of the enterprise is ensured not to be leaked on the basis of carrying out safety information sharing through the characteristics of distrustability and anonymity of the blockchain.
Preferably, the distributed information account book comprises a plurality of sub account books, each enterprise end corresponds to one sub account book, and the sub account books are transmitted by using a P2P network; the security management information uploaded by the enterprise is indiscriminately recorded into each sub-account book; when the information of one sub-account book is damaged, the damaged information is supplemented through the rest sub-account books.
Through the technical scheme, the distributed information account book comprises a plurality of sub account books, each enterprise end corresponds to one sub account book, and information data transmission is carried out between the sub account books through a P2P network; the safety management information uploaded by the enterprises is indiscriminately recorded into each sub-account book, and each enterprise end can conveniently and quickly inquire the safety management information stored in the block chain module through the setting of the sub-account book; when the information of one sub-account book is defective, the defective information is supplemented through the rest sub-account books, so that the loss of the stored data due to accidents is avoided.
Preferably, the intelligent contract comprises an accident identification contract, the accident identification contract identifies accident information in the uploaded safety management information, reads accident parameters causing accidents, and stores the accident information and the accident parameters to a distributed information account book in a classified manner; and comparing the management parameters in the uploaded safety management information with the accident parameters by the accident identification contract, and sending alarm information to the information issuing equipment when the management parameters are close to the accident parameters.
According to the technical scheme, the intelligent contract comprises an accident identification contract, the accident identification contract identifies accident information in the uploaded safety management information, reads accident parameters causing accidents, and stores the accident information and the accident parameters to a distributed information account book in a classified manner; the accident identification contract compares the management parameters in the uploaded safety management information with the accident parameters, and when the management parameters are close to the accident parameters, the alarm information is sent to the information issuing equipment, so that the alarm information can be sent out in time when the safety management parameters of enterprises exceed the range, and the possibility of safety accidents is reduced.
Preferably, when the uploaded management parameters of the enterprise are within a danger range, the intelligent contract judges the danger level and sends the danger level to the information issuing equipment of the enterprise; the information issuing equipment of the enterprise gives out sound alarm according to the level of the danger; the higher the risk level, the greater the loudness of the audible alert and the more rapid the tempo.
According to the technical scheme, the intelligent contract judges the danger level and sends the danger level to the information issuing equipment of the enterprise, and the information issuing equipment of the enterprise sends out sound alarms with different loudness and rhythm according to the danger level; the higher the danger level is, the higher the loudness of the sound alarm is, the more rapid the rhythm is, so that the people at the enterprise end are prompted to timely process the memorability of the potential safety hazard.
Preferably, the safety management information stored in the distributed information account book is subjected to information marking at the uploading time, and the safety management information is stored in the distributed information account book according to the sequence of the uploading time.
Through the technical scheme, the safety management information stored in the distributed information account book is marked at the uploading time, and the safety management information is stored in the distributed information account book according to the sequence of the uploading time, so that the safety management information machine stored in the distributed information account book is convenient to use
Preferably, when the publisher uploads the security management information to the blockchain module through the information management device, the blockchain module sends an upload notification to the information management device management devices of the other enterprises for publication confirmation, and when more than 50% of the enterprise terminals agree with the upload request, the upload request takes effect; when the enterprise end agreeing to the request does not exceed 50%, the security management information cannot be uploaded.
Through the technical scheme, when a publisher uploads the safety management information to the blockchain module through the information management equipment, the blockchain module sends an upload notification to the information management equipment of other enterprises for publication confirmation, and when more than 50% of enterprise terminals agree to an upload request, the upload request takes effect; when the enterprise end agreeing to the request does not exceed 50%, the security management information cannot be uploaded; through the method for confirming other enterprises when uploading to the block chain module, the practicability of the uploaded data is ensured, and the influence on the management of the safety management information caused by the uploading of irrelevant data to the block chain module is avoided.
Preferably, the information management device is provided with a USB interface, and the security management information in the sub-account book corresponding to the enterprise can be downloaded through the USB interface.
Through the technical scheme, the information management equipment is provided with the USB interface, and the safety management information in the sub account book corresponding to the enterprise can be downloaded through the USB interface, so that the installation management information in the sub account book can be downloaded and transmitted conveniently, and further, the communication and analysis can be performed conveniently.
Preferably, the information issuing device stores a mobile phone number of the administrator, and sends information to the administrator when the information issuing device issues new security management information.
Through the technical scheme, when the information issuing equipment issues new safety management information, the information issuing equipment sends the information to the manager to inform the manager, so that the manager can timely know the latest safety management information of the same enterprise.
In conclusion, the invention has the following beneficial effects:
1. the enterprise end is provided with information management equipment and information publishing equipment, the enterprise end inputs security management information of enterprise daily management through the information management equipment, the management equipment uploads the security management information to the block chain module, the uploaded security management information is classified through an intelligent contract of the block chain, and the security management information of the corresponding type is sent to the information publishing equipment of the enterprise of the corresponding type to publish the security management information; therefore, enterprises can receive safety management information in the field in time; on the basis of carrying out safety information sharing through the characteristics of trust elimination and anonymity of the block chain, the related information of an enterprise is ensured not to be leaked;
2. the intelligent contract comprises an accident identification contract which identifies accident information in the uploaded safety management information, reads accident parameters causing accidents and stores the accident information and the accident parameters to a distributed information account book in a classified manner; the accident identification contract compares the management parameters in the uploaded safety management information with the accident parameters, and when the management parameters are close to the accident parameters, alarm information is sent to the information issuing equipment, so that the alarm information can be sent out in time when the safety management parameters of an enterprise exceed the range, and the possibility of safety accidents is reduced;
3. when a publisher uploads the safety management information to the blockchain module through the information management equipment, the blockchain module sends an upload notice to the information management equipment of other enterprises for publication confirmation, and when more than 50% of enterprise terminals agree with an upload request, the upload request takes effect; when the enterprise end agreeing to the request does not exceed 50%, the security management information cannot be uploaded; through the method for confirming other enterprises when uploading to the block chain module, the practicability of the uploaded data is ensured, and the influence on the management of the safety management information caused by the uploading of irrelevant data to the block chain module is avoided.
Drawings
FIG. 1 is a flow chart of security management information distribution;
FIG. 2 is a schematic structural diagram of a distributed ledger;
fig. 3 is a flowchart of uploading security management information.
Detailed Description
A method for sharing safe production information based on block chain technology is disclosed, and referring to fig. 1 and fig. 2, enterprises use the method to assist the safe production management of the enterprises. The enterprise end is provided with information management equipment and information release equipment; inputting the category and safety management information of an enterprise through information management equipment, and uploading the safety management information to a block chain module by the information management equipment; and classifying the uploaded safety management information through the intelligent contract of the block chain, and sending the safety management information of the corresponding category to the information issuing equipment of the enterprise of the corresponding category to issue the safety management information. The characteristics of distrustability and anonymity of the block chain ensure that the related information of the enterprise is not leaked on the basis of carrying out safety information sharing. And the block chain module stores the uploaded safety management information through a distributed information account book. And the safety management information stored to the distributed information account book is subjected to information marking at the uploading time, and the safety management information is stored in the distributed information account book according to the sequence of the uploading time. The distributed information account book comprises a plurality of sub account books, each enterprise end corresponds to one sub account book, and information data transmission is carried out between the sub account books by adopting a P2P network; the security management information uploaded by the enterprise is indiscriminately recorded into each sub-account book; when the information of one sub-account book is defective, the defective information is supplemented through the rest sub-account books, so that the loss of the stored data due to accidents is avoided.
Referring to fig. 1 and 2, the information management apparatus may employ a PC, a tablet computer, or other dedicated intelligent terminal. The information management equipment is provided with a USB interface, and the safety management information in the sub-account book corresponding to the enterprise can be downloaded through the USB interface. Therefore, the installation management information in the sub account book is conveniently downloaded and transmitted, and then the exchange and analysis of the installation management information are conveniently carried out. The information issuing equipment can adopt a display terminal with a communication function, the information issuing equipment stores the mobile phone number of a manager, and when the information issuing equipment issues new safety management information, the information is sent to the manager, so that the manager can know the latest safety management information of the same enterprise in time.
The intelligent contract comprises an accident identification contract which identifies accident information in the uploaded safety management information, reads accident parameters causing accidents and stores the accident information and the accident parameters to a distributed information account book in a classified manner; and comparing the management parameters in the uploaded safety management information with the accident parameters by the accident identification contract, and sending alarm information to the information issuing equipment when the management parameters are close to the accident parameters. When the uploaded management parameters of the enterprise are within a danger range, the intelligent contract judges the danger level and sends the danger level to information issuing equipment of the enterprise; the information issuing equipment of the enterprise gives out sound alarm according to the level of the danger; the higher the danger level is, the higher the loudness of the sound alarm is, the more rapid the rhythm is, so that the potential safety hazard can be timely treated by people at the enterprise end.
Referring to fig. 3, when the publisher uploads the security management information to the blockchain module through the information management device, the blockchain module sends an upload notification to the information management device management devices of the other enterprises for publication confirmation, and when more than 50% of the enterprise terminals agree to the upload request, the upload request becomes effective; when the enterprise end agreeing to the request does not exceed 50%, the security management information cannot be uploaded. Through the method for confirming other enterprises when uploading to the block chain module, the practicability of the uploaded data is ensured, and the influence on the management of the safety management information caused by the uploading of irrelevant data to the block chain module is avoided.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

Claims (6)

1. A safe production information sharing method based on block chain technology is characterized in that: the enterprise end is provided with information management equipment and information release equipment; inputting the category and safety management information of an enterprise through information management equipment, and uploading the safety management information to a block chain module by the information management equipment; classifying the uploaded safety management information through an intelligent contract of the block chain module, sending the safety management information of the corresponding category to information issuing equipment of enterprises of the corresponding category, and issuing the safety management information; the block chain module stores the uploaded safety management information through a distributed information account book, the intelligent contract comprises an accident identification contract, the accident identification contract identifies accident information in the uploaded safety management information, reads accident parameters causing accidents, and stores the accident information and the accident parameters to the distributed information account book in a classified manner; the accident identification contract compares the management parameters in the uploaded safety management information with the accident parameters, and when the management parameters are equal to the accident parameters, alarm information is sent to the information issuing equipment; when the uploaded management parameters of the enterprise are within a danger range, the intelligent contract judges the danger level and sends the danger level to information issuing equipment of the enterprise; the information issuing equipment of the enterprise gives out sound alarm according to the level of the danger; the higher the danger level is, the higher the loudness of the sound alarm is, the more rapid the rhythm is, so that the potential safety hazard can be timely treated by people at the enterprise end.
2. The method of claim 1, wherein the method comprises: the distributed information account book comprises a plurality of sub account books, each enterprise end corresponds to one sub account book, and information data transmission is carried out between the sub account books by adopting a P2P network; the security management information uploaded by the enterprise is indiscriminately recorded into each sub-account book; when the information of one sub-account book is damaged, the damaged information is supplemented through the rest sub-account books.
3. The method of claim 1, wherein the method comprises: and the safety management information stored to the distributed information account book is subjected to information marking at the uploading time, and the safety management information is stored in the distributed information account book according to the sequence of the uploading time.
4. The method of claim 1, wherein the method comprises: when a publisher uploads the safety management information to the blockchain module through the information management equipment, the blockchain module sends an upload notice to the information management equipment of other enterprises for publication confirmation, and when more than 50% of enterprise terminals agree with an upload request, the upload request takes effect; when the enterprise end which agrees to the uploading request does not exceed 50%, the security management information cannot be uploaded.
5. The method of claim 2, wherein the method comprises: the information management equipment is provided with a USB interface, and the safety management information in the sub-account book corresponding to the enterprise can be downloaded through the USB interface.
6. The method of claim 1, wherein the method comprises: the information issuing equipment stores the mobile phone number of the manager, and sends information to the manager when the information issuing equipment issues new safety management information.
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Publication number Priority date Publication date Assignee Title
US11042147B2 (en) * 2019-01-15 2021-06-22 Fisher-Rosemount Systems, Inc. Machine-to-machine transactions using distributed ledgers in process control systems
CN111489043B (en) * 2019-01-25 2024-04-16 咸阳彩虹光电科技有限公司 MPS-based enterprise medium-long term production planning system and method
CN110445845B (en) * 2019-07-17 2021-10-15 苏州同济区块链研究院有限公司 System based on main and sub account books in distributed account book
CN111147529A (en) * 2020-04-08 2020-05-12 国网区块链科技(北京)有限公司 Network attack data processing method and system and early warning platform
CN112801831A (en) * 2021-01-28 2021-05-14 广州市世平计算机科技有限公司 Construction method and system for practitioner safe production integrity system based on block chain
CN113139198B (en) * 2021-05-08 2023-03-31 上海埃林哲软件系统股份有限公司 Enterprise management information sharing system based on Internet
CN113254977B (en) * 2021-06-24 2022-03-18 中电科新型智慧城市研究院有限公司 Sandbox service construction method and device, electronic equipment and storage medium
CN116562627A (en) * 2023-05-19 2023-08-08 中国电信股份有限公司湖州分公司 Security risk management method, system, equipment, medium and product

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* Cited by examiner, † Cited by third party
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CN107851253B (en) * 2015-07-13 2022-03-04 日本电信电话株式会社 Contract consensus method, consensus verification method, contract consensus system, consensus verification device, contract consensus device, computer-readable recording medium
CN106503995A (en) * 2016-11-17 2017-03-15 中国银行股份有限公司 A kind of data sharing method, source node, destination node and system
CN107341402B (en) * 2017-06-19 2020-09-01 上海策链信息科技有限公司 Program execution method and device
CN107623569A (en) * 2017-09-30 2018-01-23 矩阵元技术(深圳)有限公司 Block chain key escrow and restoration methods, device based on Secret sharing techniques
CN107943469B (en) * 2017-11-17 2022-01-11 深圳圣马歌科技有限公司 Intelligent contract issuing method and device

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