CN109086630B - Power information tracing method based on block chain - Google Patents

Power information tracing method based on block chain Download PDF

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CN109086630B
CN109086630B CN201810856324.3A CN201810856324A CN109086630B CN 109086630 B CN109086630 B CN 109086630B CN 201810856324 A CN201810856324 A CN 201810856324A CN 109086630 B CN109086630 B CN 109086630B
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block chain
information
power
slave node
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CN109086630A (en
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朱犇
陈梦娴
郑立
蔡怡挺
孙望舒
夏伟民
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Wenzhou Tusheng Science & Technology Co ltd
Wenzhou Power Supply Co of State Grid Zhejiang Electric Power Co Ltd
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Wenzhou Power Supply Co of State Grid Zhejiang Electric Power Co Ltd
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    • 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
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    • G06FELECTRIC DIGITAL DATA PROCESSING
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    • G06K17/0029Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisious for transferring data to distant stations, e.g. from a sensing device the arrangement being specially adapted for wireless interrogation of grouped or bundled articles tagged with wireless record carriers
    • 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
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Abstract

The invention discloses a block chain-based power information tracing method, which comprises the following steps: A. the traffic request characteristics of the power information and the micro service nodes are completed by using a go language, a geth tool and a miss tool, and code development and block deployment of each module are respectively performed on the micro service nodes; B. and the master node is used for carrying out identity verification on each slave node, and acquiring the relevant digital information of the slave node passing the identity verification. The invention can change the traditional network data transmission mode through the method, changes the terminal-server data transmission into chain transmission, synchronizes data among all nodes in a block chain network, adds and traces according to the time stamp, simultaneously utilizes the DPOS module, randomly selects 51 percent of nodes at random in an irregular time through different strategies, and creates, verifies, signs and supervises new blocks and new data by the part of nodes, thereby greatly reducing the time and the calculation cost which are required by creating and confirming the blocks and the data.

Description

Power information tracing method based on block chain
Technical Field
The invention relates to the technical field of electric power information tracing, in particular to a block chain-based electric power information tracing method.
Background
The invention relates to a power generation and consumption system, which is characterized in that electric power is energy using electric energy as power, the invention and application of the electric power open up the second industrialized climax and become one of three scientific and technological revolution which occur in the world since the eighteenth century of human history, the life of people is changed from the science and technology, a large-scale electric power system appearing in the twentieth century is one of the most important achievements in the science and history of human engineering, and the large-scale electric power system is an electric power generation and consumption system consisting of links of power generation, power transmission, power transformation, power distribution, electricity utilization and the like, and converts primary energy in the nature into electric power through a mechanical energy device and supplies the electric power to each user through the power transmission, the power transformation and the. In an electric power system, a power plant converts natural primary energy into electric energy and transmits the electric energy to a remote electric power user, and in order to reduce electric energy loss on an electric transmission line and line impedance voltage drop, the voltage needs to be increased; in order to meet the safety requirement of power consumers, the voltage is reduced and distributed to each user, which needs a substation capable of increasing and reducing the voltage and distributing electric energy, so that the substation is an electrician device for converting the voltage, receiving and distributing the electric energy in a power system, and is an intermediate link for connecting a power plant and the power consumers, and simultaneously, the power grids of various voltage classes are connected through the substation, and the substation is used for converting the voltage, transmitting and distributing the electric energy.
The electric power is the practice of big data concept, technology and method in the electric power industry, the big data of the electric power relates to each link of power generation, power transmission, power transformation, power distribution, power utilization and scheduling, and is cross-unit, cross-professional, cross-business data analysis and mining and data visualization, the big data of the electric power is composed of structured data and unstructured data, along with the construction of a smart grid and the application of the Internet of things, the unstructured data presents a rapidly increasing trend, the quantity of the unstructured data greatly exceeds the structured data, the characteristics of the big data of the electric power meet the five characteristics of the big data, the first is that the data size is large, the second is that the processing speed is fast, the third is that the data types are many, the fourth is of great value, the fifth is that the accuracy is high, and the application of the big data of the electric power is fused with information such as macroscopic economy, people's life; on the other hand, the method is characterized in that the method is used for data fusion in the power industry or enterprises, and is across professions, units and departments, so that the management level and the economic benefit of the industry and the enterprises are improved, the power big data technology meets the rapid growth of power data, meets the work needs of each profession, meets the development needs of the power industry, and services the economic development needs, and the power big data technology comprises the following steps: high performance computing, data mining, statistical analysis, data visualization, and the like.
The supply chain is around a series of related enterprises, through the control to commodity flow, information flow, logistics and fund flow, the whole functional structure formed by enterprises in each link of production, distribution and the like is formed from the beginning of purchasing raw materials to the end of manufacturing, and the product is sent to a consumer, but because the production plan of the enterprise changes frequently, the downstream enterprises of the supply chain cannot follow the changes of the upstream enterprises in time, so that the function of the supply chain is not exerted, in order to change the situation, people adopt an information tracing method to realize the follow-up of the changes of the upstream enterprises, but the existing information tracing method has great leak, so that the information leaks out, and great potential safety hazards are brought to the enterprises.
Disclosure of Invention
The present invention provides a block chain-based power information tracing method to solve the above problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: a power information source tracing method based on a block chain comprises the following steps:
A. the traffic request characteristics of the power information and the micro service nodes are completed by using a go language, a geth tool and a miss tool, and code development and block deployment of each module are respectively performed on the micro service nodes;
B. the master node is used for carrying out identity authentication on each slave node, and relevant digital information of the slave node passing the identity authentication is obtained;
C. generating identification information of each slave node, and generating identification information of a block chain according to the identification information of the slave node;
D. after receiving the relevant digital information of a certain slave node to be traced, the block chain traverses the whole block chain from the current block according to the sequence of block generation;
E. the block chain constructs a power information spanning tree of the block chain address to be traced according to the traversal result, and obtains all power information records of the block chain address to be traced;
F. and calculating the assets of the block chain address to be traced by the DPOS encryption module.
Preferably, the power information includes a power transaction object and service information, the power transaction object is a power utilization enterprise, a power purchase enterprise, a power grid enterprise and a power selling company, and the service information includes power transaction intention, a power transaction completion state, power transaction planning, a power transaction plan execution state and power transaction settlement.
Preferably, the block chain adopts a one-way hash algorithm, each newly generated block is strictly advanced according to a time line sequence, and the irreversibility of time causes any behavior of trying to invade and tamper data information in the block chain to be easily traced back, so that the behavior is rejected by other nodes, and related illegal behaviors can be limited.
Preferably, the slave node records the current state of the block chain in real time, so that when a node of the block chain network is damaged, the slave node can recover from any slave node.
Preferably, the DPOS encryption module randomly selects 51% of the power terminals at random at variable times through different selection strategies to create, verify, sign and supervise blocks and power data, so as to ensure the safety and the effectiveness of the power data.
Preferably, after the step F, the method further includes sending each slave node identifier and each slave node information to an information management server by using an RFID reader, where the RFID reader is further configured to send each slave node information in the read RFID electronic tag to a management terminal, the information management server is configured to configure an authority for a user according to a request of the management terminal, and is further configured to receive an inquiry request of the management terminal, and send each slave node information corresponding to the inquiry request to the management terminal, and the RFID reader includes an antenna interface for radio frequency output, a power interface, and a communication interface, where the antenna interface uses a standard SMA connector for connecting with an antenna, the power interface is used for connecting with a power supply, and the communication interface is used for connecting with the management terminal.
Compared with the prior art, the invention has the following beneficial effects:
the invention can change the traditional network data transmission mode through the method, changes the terminal-server data transmission into chain transmission, synchronizes data among all nodes in a block chain network, adds and traces according to the time stamp, simultaneously utilizes the DPOS module, randomly selects 51 percent of nodes at random in an irregular time through different strategies, and creates, verifies, signs and supervises new blocks and new data by the part of nodes, thereby greatly reducing the time and the calculation cost which are required by creating and confirming the blocks and the data.
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FIG. 1 is a schematic flow chart of the method 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 only a part of the embodiments of the present invention, and not all of the embodiments. 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.
Referring to fig. 1, a block chain-based power information tracing method includes the following steps:
A. the traffic request characteristics of the power information and the micro service nodes are completed by using a go language, a geth tool and a miss tool, and code development and block deployment of each module are respectively performed on the micro service nodes;
B. the master node is used for carrying out identity authentication on each slave node, and relevant digital information of the slave node passing the identity authentication is obtained;
C. generating identification information of each slave node, and generating identification information of a block chain according to the identification information of the slave node;
D. after receiving the relevant digital information of a certain slave node to be traced, the block chain traverses the whole block chain from the current block according to the sequence of block generation;
E. the block chain constructs a power information spanning tree of the block chain address to be traced according to the traversal result, and obtains all power information records of the block chain address to be traced;
F. and calculating the assets of the block chain address to be traced by the DPOS encryption module.
The electric power information comprises electric power transaction objects and business information, the electric power transaction objects are electric power enterprises, electric power purchasing enterprises, power grid enterprises and electric power selling companies, and the business information comprises electric power transaction intention, electric power transaction completion state, electric power transaction planning, electric power transaction plan execution state and electric power transaction settlement.
The block chain adopts a one-way hash algorithm, each newly generated block is strictly advanced according to a time linear sequence, and the irreversibility of time causes that any behavior trying to invade and tamper data information in the block chain is easy to trace back, so that the behavior is rejected by other nodes, and the related illegal behaviors can be limited.
And recording the current state of the block chain in real time from the slave node so as to recover from any slave node when the node of the block chain network is damaged.
The DPOS encryption module randomly selects 51% of power terminals at random at variable time to create, verify, sign and supervise blocks and power data through different selection strategies, and the safety and the effectiveness of the power data are guaranteed.
And step F, sending each slave node identification and each slave node information to an information management server by using an RFID reader-writer, sending each slave node information in the read RFID electronic tag to a management terminal by using the RFID reader-writer, configuring authority for a user according to the request of the management terminal by using the information management server, receiving the query request of the management terminal, and sending each slave node information corresponding to the query request to the management terminal, wherein the RFID reader-writer comprises an antenna interface, a power interface and a communication interface for radio frequency output, the antenna interface adopts a standard SMA connector and is used for being connected with an antenna, the power interface is used for being connected with a power supply, and the communication interface is used for being connected with the management terminal.
When the method is used, the traditional network data transmission mode can be changed, the data transmission of the terminal-server is changed into chain transmission, in a block chain network, data synchronization is carried out among all nodes, addition and tracing are carried out according to the time stamps, meanwhile, the DPOS module is utilized, 51% of nodes are randomly selected at random in an irregular time through different strategies, and the nodes are used for creating, verifying, signing and mutually supervising new blocks and new data, so that the time and the calculation cost required by creating and confirming the blocks and the data are greatly reduced.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (1)

1. A power information source tracing method based on a block chain is characterized in that: the tracing and tracking method comprises the following steps:
A. using go language, geth and miss tools to complete the flow request characteristics of the power information and the code development and block deployment of each module according to the situation of the micro service nodes;
B. the master node is used for carrying out identity authentication on each slave node, and relevant digital information of the slave node passing the identity authentication is obtained;
C. generating identification information of each slave node, and generating identification information of a block chain according to the identification information of the slave node;
D. after receiving the relevant digital information of a certain slave node to be traced, the block chain traverses the whole block chain from the current block according to the sequence of block generation;
E. the block chain constructs a power information spanning tree of the block chain address to be traced according to the traversal result, and obtains all power information records of the block chain address to be traced;
F. calculating the assets of the block chain address to be traced through a DPOS encryption module;
the electric power information comprises an electric power transaction object and service information, the electric power transaction object is an electricity utilization enterprise, an electricity purchasing enterprise, a power grid enterprise and an electricity selling company, and the service information comprises electric power transaction intention, an electric power transaction completion state, electric power transaction planning, an electric power transaction plan execution state and electric power transaction settlement; the block chain adopts a one-way hash algorithm, each newly generated block is strictly advanced according to a time linear sequence, and the irreversibility of time causes any behavior of trying to invade and tamper data information in the block chain to be easily traced, so that the behavior is rejected by other nodes, and related illegal behaviors can be limited; the current state of the block chain is recorded in real time in the slave nodes, so that when the nodes of the block chain network are damaged, the recovery from any slave node can be realized; the DPOS encryption module randomly selects 51% of power terminals at random at variable time through different selection strategies to create, verify, sign and supervise blocks and power data, so that the safety and the effectiveness of the power data are ensured; and F, sending each slave node identification and each slave node information to an information management server by using an RFID reader-writer, sending each slave node information in the read RFID electronic tag to a management terminal by using the RFID reader-writer, configuring authority for a user according to a request of the management terminal by using the information management server, receiving an inquiry request of the management terminal, and sending each slave node information corresponding to the inquiry request to the management terminal, wherein the RFID reader-writer comprises an antenna interface, a power interface and a communication interface for radio frequency output, the antenna interface adopts a standard SMA connector and is used for being connected with an antenna, the power interface is used for being connected with a power supply, and the communication interface is used for being connected with the management terminal.
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Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109921922A (en) * 2019-02-01 2019-06-21 北京融链科技有限公司 Fragment method for uploading, device, storage medium and the processor of photovoltaic apparatus
CN111353709B (en) * 2020-02-29 2023-05-16 国网上海市电力公司 Method and system for producing electric power information product based on block chain
CN111815337B (en) * 2020-07-15 2024-04-09 深圳市中选科技有限公司 Block chain-based full-link anti-counterfeiting traceability method, system, intelligent terminal and storage medium
CN114079567B (en) * 2020-08-21 2024-02-06 东北大学秦皇岛分校 Block chain-based universal IP traceability system and method
CN112184480B (en) * 2020-09-18 2023-10-24 西安交通大学 Electric energy quality tracing system and method based on block chain
CN112200533A (en) * 2020-09-22 2021-01-08 国网电力科学研究院有限公司 Block chain-based consumption voucher full-life-cycle management method and device
CN112540338A (en) * 2020-10-23 2021-03-23 国网天津市电力公司 Intelligent electric meter verification system based on block chain technology
CN112231364A (en) * 2020-11-05 2021-01-15 浙江智联阀门科技有限公司 Data tracing method based on block chain
CN113269416A (en) * 2021-05-10 2021-08-17 南方电网能源发展研究院有限责任公司 Engineering safety quality accident tracing method and device based on block chain
CN113438084B (en) * 2021-06-23 2022-11-29 国网北京市电力公司 Green power source tracing method and system based on R-PBFT consensus algorithm and timestamp
CN116739623B (en) * 2023-08-15 2024-01-05 安徽继远软件有限公司 Transaction data tracking analysis method based on blockchain technology

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103646329A (en) * 2013-11-04 2014-03-19 国家电网公司 Interregional and interprovincial electricity trading operational control method
CN105608146A (en) * 2015-12-17 2016-05-25 布比(北京)网络技术有限公司 Block chain tracing method
CN105868813A (en) * 2016-06-12 2016-08-17 上海资誉网络科技有限公司 Food information management system based on RFID (radio frequency identification)
CN106779737A (en) * 2016-11-30 2017-05-31 电子科技大学 Product based on block chain technology is traced to the source verification method
CN106790003A (en) * 2016-12-12 2017-05-31 武汉优聘科技有限公司 A kind of supply chain status data method for tracing based on block chain

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103646329A (en) * 2013-11-04 2014-03-19 国家电网公司 Interregional and interprovincial electricity trading operational control method
CN105608146A (en) * 2015-12-17 2016-05-25 布比(北京)网络技术有限公司 Block chain tracing method
CN105868813A (en) * 2016-06-12 2016-08-17 上海资誉网络科技有限公司 Food information management system based on RFID (radio frequency identification)
CN106779737A (en) * 2016-11-30 2017-05-31 电子科技大学 Product based on block chain technology is traced to the source verification method
CN106790003A (en) * 2016-12-12 2017-05-31 武汉优聘科技有限公司 A kind of supply chain status data method for tracing based on block chain

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
pow,pos,Dpos综述;善存于心,世界和平;《https://daimajia.com》;20170914;第2页 *
区块链核心内容有哪些东西;企鹅号;《https://cloud.tencent.com/developer/news/66367》;20171226;全文 *

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