CN110049111A - A kind of industrial control system teleinstruction control method based on block chain technology - Google Patents
A kind of industrial control system teleinstruction control method based on block chain technology Download PDFInfo
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- CN110049111A CN110049111A CN201910235702.0A CN201910235702A CN110049111A CN 110049111 A CN110049111 A CN 110049111A CN 201910235702 A CN201910235702 A CN 201910235702A CN 110049111 A CN110049111 A CN 110049111A
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- G06F—ELECTRIC DIGITAL DATA PROCESSING
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- G06F8/70—Software maintenance or management
- G06F8/71—Version control; Configuration management
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
- H04L67/025—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP] for remote control or remote monitoring of applications
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- H—ELECTRICITY
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- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
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Abstract
A kind of industrial control system teleinstruction control method based on block chain technology, the teleinstruction control being related in industrial control system.OPC environment configurations are carried out in a computer, correlated variables are created in configuration software, and be set as opc server；As relay system and realize that configuration software is communicated with block chain network using Java and Tomcat building Java Web server；Using the public block platform chain of open source, block chain private chain network is built in ether mill in the network where industrial control system；Intelligent contract is write, issue token in intelligent contract and is distributed to the node for the limit that is possessed of control power, and in this, as control authority Rule of judgment；Distributed Application is built using Truffle frame and Vue, program code is write and extracts the teleinstruction that user sends, a transaction is initiated and the control authority judgment method of intelligent contract is called to carry out permission judgement to node account.
Description
Technical field
The present invention relates to the teleinstruction controls in industrial control system, more particularly, to a kind of based on block chain technology
Industrial control system teleinstruction control method.
Background technique
Industrial control system (ICS) covers a plurality of types of control systems, including monitoring system, data collection system,
Dcs and programmable logic controller (PLC) etc..Industrial control system is widely used in electric power, water conservancy, petroleum, change
The fields such as work, transport and various manufacturing industry.In industrial control system, teleinstruction control is one very basic, simultaneously
Vital function again, for example in the drainage system of seabed tunnel, need by remotely sending instruction to drawing water in system
It pumps and carries out start-up and shut-down control, if criminal by forging a control node, sends forgery when inappropriate into system
Suction pump remote control command is closed, consequence will be hardly imaginable.And traditional solution be usually pass through it is physically-isolated
Industrial control system is isolated with outer net and solves the problems, such as this by method.But this measure also brings along a problem, has cut off without outer net
Also the connection with internet has been completely cut off while isolation, in nowadays such a Internet era, it is clear that many inconvenience can be brought.
Block chain have the characteristics that decentralization, time series data, collective's maintenance, it is programmable and secure and trusted ([1] Yuan Yong,
Wang Feiyue block chain state-of-the-art and prospect [J] automate journal, 2016,42 (4): 481-494).First block chain sheet
The database of a decentralization in matter, be by a string using cryptography methods generate data chunk at, each area
Between all include a upper block cryptographic Hash, be initially connected to current block from original block, form block chain.Each block
Ensure to generate after a upper block sequentially in time, otherwise the cryptographic Hash of previous block is unknown.And intelligence is closed
It is approximately a core of block chain technology, they are the computer programs run on block chain database, can work as and meet it
It is voluntarily executed when the condition being written in source code.Due to the presence of PoW common recognition algorithm, Sybil attack ([2] Shao can be successfully managed
Grotesque peak, gold is clear clear, Zhang Zhao, Qian Weining, Zhou Aoying block chain technology: framework and progress [J] Chinese journal of computers, and 2018,41
(5): 969-988), intelligent contract, which once writes, to be trusted by user, and agreement terms cannot be changed, and contract is can not
It changes, therefore is distributed to the node for the limit that is possessed of control power using the intelligent contract publication token in block chain, and the section forged
Point is can not actively to obtain the token forever, to not have the permission of control system, this is one and effectively solves Industry Control
Node is forged in system to attempt to send the method that malice teleinstruction destroys system.
Summary of the invention
It is an object of the invention to solve the prior art to be easily forged industrial control system on node transmission malice remotely finger
The problem of enabling and wrecking provides a kind of industrial control system teleinstruction control method based on block chain technology.
The present invention the following steps are included:
1) OPC environment configurations are carried out in a computer, correlated variables is created in configuration software, and are set as OPC service
Device；
It is described to carry out OPC environment configurations in a computer in step 1), correlated variables is created in configuration software, and
The specific method for being set as opc server can are as follows:
1.1 installation OPC drivings in a computer first, and to environment configurations needed for computer progress opc server；
1.2 create the variable control of character string type in configuration software, for storing remote control commands, and will
Configuration software is set as opc server.
2) as relay system and configuration software and block are realized using Java and Tomcat building Java Web server
Chain network communication；
It is described using Java and Tomcat building Java Web server as relay system and realization group in step 2)
The specific method that state software is communicated with block chain network can are as follows:
2.1 build Java Web server using Java and Tomcat；
2.2 call Utgard to communicate with opc server (i.e. configuration software) in Java Web；
2.3 define WebSocket server in Java Web, keep it logical with block chain network Distributed Application (DAPP)
Letter；
The network port number that 2.4 setting Java Web projects are disposed；
2.5 communicate with Distributed Application (DAPP).
3) using the public block platform chain of open source, block chain is built in ether mill in the network where industrial control system
Private chain network；
In step 3), the public block platform chain using open source, ether mill is in the net where industrial control system
The specific method that block chain private chain network is built in network can are as follows:
3.1 in a computer install block chain development platform ether mill needed for environment；
3.2 newly-built block chains create generation block；
3.3 starting block chain private chain nodes；
3.4 are carried out step 3.1,3.2 and 3.3 in needing each computer as block chain node, so far complete
At building for the local private chain network of block chain.
4) intelligent contract is write, issue token in intelligent contract and is distributed to the node for the limit that is possessed of control power, and with this
As control authority Rule of judgment；
It is described to write intelligent contract in step 4), token is issued in intelligent contract and is distributed to the limit that is possessed of control power
Node, and can in this, as the specific method of control authority Rule of judgment are as follows:
4.1 write intelligent contract code using Solidity language, issue token tokenA and are distributed to and are possessed of control power
The node account of limit, wherein tokenA is the token title of creation；
4.2 defined in intelligent contract token transfer accounts with control authority judgement the methods of；
The intelligent contract write in 4.3 compilation steps 4.1 is simultaneously deployed in the block chain private chain network built in step 3)
On.
5) Distributed Application (DAPP) is built using Truffle frame and Vue, writes program code and extracts what user sent
Teleinstruction initiates a transaction and the control authority judgment method of intelligent contract is called to carry out permission judgement to node account.
It is described to build Distributed Application (DAPP) using Truffle frame and Vue in step 5), write program code
Extract the teleinstruction that user sends, initiate a transaction call the control authority judgment method of intelligent contract to node account into
The specific method of row permission judgement can are as follows:
5.1, which write code using Truffle frame and Vue, realizes Distributed Application (DAPP), and to user on the page
Corresponding remote control commands are inputted to extract；
5.2 initiate a transaction, which is that the node account is a certain number of to the intelligent contract transmission in step 4)
Token TokenA；
Control authority judgment method defined in intelligent contract is called in 5.3 trade fair in step 5.2, is judged to send and is somebody's turn to do
Whether the node account of instruction has the control authority to industrial control system；
It, will the middle long-range control extracted of step 1) by Websocket interface if the 5.4 node accounts have control authority
Instruct the relay system that is sent in step 2), relay system recycle step 2) in Utgard remote control commands are sent
To opc server (i.e. configuration software), safe long-range control is realized；If sending failure without control authority；
If 5.5 find that the token quantity in the node account that some has permission is lower than certain amount and (is such as lower than when not being 0
When 2 token tokenA), then the automatic token transfer account method called in intelligent contract is provided a certain number of to the node account
Token.
The present invention builds block chain private chain network using ether mill platform in a network, and writes intelligent contract code,
Token is issued in intelligent contract, and the token is distributed to the node for the limit that is possessed of control power, while control is defined in intelligent contract
The intelligence contract is deployed in block chain private chain network by the judgment method of permission processed, load.User is using Truffle and Vue
It is operated in the Distributed Application (DAPP) built, input the remote control commands to industrial control system and attempts to be sent out
It send to industrial control system (configuration software), a transaction will be initiated at this time, send one from the node account to intelligent contract
The token tokenA of fixed number amount, the trade fair call the control method of the control authority of intelligent contract to weigh the node account
Limit judgement can not get token tokenA due to forging node, and control authority can not be possessed forever by forging node.And it gathers around
There is the node account of control authority by building Java Web server using Java programming language and Tomcat, respectively
Remote control command is sent to opc server (i.e. configuration software) by Websocket and Jopc interface, is realized to Industry Control system
The safety long-distance of system instructs control.
The Java Web server that the present invention is built using Java is as the configuration software and block in industrial control system
The relay system that Distributed Application (DAPP) communicates in chain realizes industrial control system medium-long range director data to block chain network
Data interaction.Token is issued using intelligent contract, and token is distributed to the node account for the limit that is possessed of control power, while in intelligence
The method judged control authority can be defined on contract, permanently execute, crack since the intelligent contract in block chain has
The features such as cost is very big, the node account of forgery are can not actively to obtain the token forever, therefore also just can not be to Industry Control
System carries out malice control, ensures that the safety to industrial control system in this way.
Compared with prior art, the invention has the benefit that
Traditional industrial control system is that the network of industrial control system is isolated with outer net using physical isolation mostly, is deposited
Reducing internuncial problem with internet, cause may to lose after many functions, such as physical isolation can not strange land it is remote
Journey remote control etc..And the token that the present invention is issued using contract intelligent in block chain technology is as the judgment basis of control authority, by
In the characteristic of intelligent contract, the node account of forgery is can not to obtain token forever, therefore also can not just possess control authority, from
And it solves the problems, such as easily to be forged node transmission forgery instruction malice control after traditional industry control system is networked.
Detailed description of the invention
Fig. 1 is the industrial control system medium-long range command control system block diagram based on block chain technology.
Fig. 2 is the flow chart of the embodiment of the present invention.
Fig. 3 is the relay system program execution flow figure built in step 2.
Fig. 4 is the Distributed Application DAPP program execution flow figure built in step 4.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Whole description.
Referring to Fig. 1 and 2, the present invention is for the teleinstruction control method in the industrial control system based on block chain technology
It is specifically implemented according to the following steps:
Step 1: carrying out OPC environment configurations in a computer, correlated variables is created in configuration software, and be set as OPC
Server.
1) installation OPC driving in a computer first, and to environment configurations needed for computer progress opc server.
Installation OPC drives OPC Core Components Redistributable in a computer.DCOM is carried out such as
Lower configuration:
A) configuration allows configuration software access authority and open OPC to communicate 135 on Windows firewall management interface
Port；
B) dcomcnfg server is run, into " my computer " attribute configuration, into the default property page, choose "
Distributed COM is enabled on this computer ", default identity rank is changed to "None", into the default security mechanism page, confirmation is visited
Ask the default value in permission and default starting permission without EveryOne；
C) attribute configuration for entering corresponding OPC software in DCOM configuration, the authentication rank in General Page is changed
For "None", chooses " running application program on this computer ", chooses " running application program on this computer ", identity
In identified page, select " oolhiu interactive user ".
2) the variable control that character string type is created in configuration software, for storing remote control commands, and by group
State software is set as opc server.
A) variable of character string type, the entitled control of variable, when the value of control occurs are created in configuration software
When variation, configuration software can extract the information of the value, issue control instruction to the equipment controlled.
B) set opc server for itself in configuration software, be arranged its read-write mode be " asynchronous reading " and " asynchronous write ",
Recovery policy etc. when communication failure is set, communicates the control data in a) by OPC and is read in real time by applications
It writes.
Step 2: using Java and Tomcat building Java Web server as relay system and realize configuration software and
The communication of block chain network.
1) Java Web server is built using Java and Tomcat.
Under Eclipse programmed environment, Java Web project is created using Java programming language, and the project is deployed in
In Tomcat service, using the server as the relay system of configuration software and block chain network, the work of data interaction is completed
With.
2) Utgard is called to communicate with opc server (i.e. configuration software) in Java Web.
A) configuration file of opc server is created in project, this document includes the IP of host where the opc server
Location, user name, password and opc server (i.e. configuration software) clsId, which is that windows system answers difference
The ID code for uniquely indicating him is distributed with program, is distinguished for the mark to its identity and with other objects.
B) configuration file created in load a) obtains the connection letter on the basis such as host ip, user name, password and clsId
Breath, then connects corresponding opc server (i.e. configuration software)；
C) it creates OPC and is grouped group, the teleinstruction variable control in configuration software is added to grouping group
In；
Whether d) judgement is connect with opc server succeeds, if being not connected with successfully, it tries be again coupled to.
3) WebSocket server is defined in Java Web, keeps it logical with block chain network Distributed Application (DAPP)
Letter.
A) a WebSocket server, the value conduct of note are defined using note@ServerEndPoint in the project
The address URL of terminal (present invention, that is, block chain Distributed Application DAPP) access of monitoring users connection；
B) successful connection calling is defined respectively using note@OnOpen ,@OnClose and@OnMessage in the project
The method and receive the method called after the message that client (DAPP) is sent that method, connection closed call.
4) network port number that setting Java Web project is disposed.
To being configured after the network port of this Web project in Eclipse translation and compiling environment, it is arranged in the present embodiment
It is 11111.
The relay system program execution flow figure built in step 2 is referring to Fig. 3.
Step 3: the public block platform chain of open source is utilized --- it is taken in the network where industrial control system in ether mill
Build block chain private chain network:
1) environment needed for installing block chain development platform ether mill in a computer.
The computer in need for being connected into block chain network be known as the node of block chain, pacify in the computer of each node
Fill block chain Open Source Platform ether mill and intelligent contract develop needed for environment, have git, go, ethereum, nodejs, npm,
Geth, truffle and rpc etc.；
2) it creates block chain and creates generation block.
A) a genesis.json file is created in a computer, and as wound generation block, it is the starting point of block chain, should
The attribute of this block chain network is defined in file, this document includes following information:
1. Mixhash, Nonce: cooperation is to prove to have done enough calculation amounts on block chain；
2. Difficulty: mine disaster degree is dug in definition；
3. Alloc: inserting some remaining sums in advance；
4. Coinbase: wallet address；
5. Timestamp: timestamp；
6. ParentHash: hash value (the wound not upper block of generation block, so being generally set to of a upper block
0)；
7. ExtraData: some additional informations can be stored for private chain；
8. GasLimit: the consumable gas upper limit of a block.
B) it is initialized in console console using sentence " geth--datadir "/" init genesis.json "
Original block, it will increase two files geth and keystore newly under current directory.
3) start block chain private chain node.
Starting geth can start the block chain private chain in ether mill, but need to be added in start command in starting
Parameter guarantees that block chain operates normally.Parameter includes as follows:
1. datadir: current block chain network file stores path；
2. identity: the mark of block chain is at will filled in, for indicating the name of current network；
3. rpc: starting rpc communication can carry out the deployment and debugging of intelligent contract；
4. rpcapi: the client for the rpc that setting allows to connect, generally db, eth, net, web3；
5. networkid: the network ID of current block chain, the ID number of all nodes must be identical in the same block chain；
6. console: start command row mode can execute order in Geth；
7. rpccorsdomain: specifying the address domain of accessible APi, being set as " * ", then any address is ok
Access.
Therefore, in console console using sentence " geth--datadir "/"-identity " mydev " --
rpc--rpcapi"db,eth,net,web3,admin,miner,personal,rpc"--rpccorsdomain"*"--
Networkid100console " starts the block chain of this node.
And 3) it is carried out step 1), 2) in needing each computer as block chain node, so far completes block
The local private chain network of chain is built.
Step 4: writing intelligent contract, issues token in intelligent contract and is distributed to the node for the limit that is possessed of control power, and
In this, as control authority Rule of judgment.
1) intelligent contract code is write using Solidity language, issue token tokenA and is distributed to the limit that is possessed of control power
Node account:
Token tokenA is issued in intelligent contract, and sends a certain number of generations to the node account for the limit that is possessed of control power
Transaction coin when coin is as subsequent transmission control instruction；
2) defined in intelligent contract token transfer accounts with control authority judgement the methods of:
A) judgment method of control authority is defined in intelligent contract, the input parameter of this method is the ground of node account
Location, principle are by judging whether the node possesses control according to whether the node account possesses the token tokenA issued in a)
Permission processed (token can not actively be got forever by forging node)；
B) method that token is transferred accounts is defined in intelligent contract, function is when the node account token for possessing control authority
When the lazy weight of tokenA, party's normal direction node account can be called to provide the token of specified quantity to guarantee next secondary control
The correct execution of instruction.
3) it compiles the intelligent contract write in 1) and is deployed in the block chain private chain network built in step 3:
A) file of project, uses order " truffle where entering intelligent contract in console console
Complie " is compiled intelligent contract code, such as compiles successfully, and console prints " writing artifact to.
build\contracts"；
B) use order " truffle migrate--reset-all " by compiled intelligence in console console
Contract is deployed in the block chain private chain network put up.
The Distributed Application DAPP program execution flow figure built in step 4 is referring to fig. 4.
Step 5: building Distributed Application (DAPP) using Truffle frame and Vue, writes program code and extracts user
The teleinstruction of transmission initiates a transaction and the control authority judgment method of intelligent contract is called to sentence node account progress permission
It is disconnected.
1) code is write using Truffle frame and Vue and realize Distributed Application (DAPP), and defeated on the page to user
Enter corresponding remote control commands to extract:
A) instance objects are created using WebSocket, parameter is the Distributed Application WebSocket to be accessed service
Device, the relay system as built in step 2 in this example, so the form of parameter are as follows: ws: // host ip: port numbers/
Entry name/note parameter.Wherein the IP address of the computer of the Java Web deployment in the entitled step 2 of host, port numbers are step
Rapid 2 4) in be arranged port numbers: 11111, the entitled Java Web project name of project, notes parameter be step 2 3) in note
The value of solution；The process for creating the object is to connect WebSocket server；
B) monitor of WebSocket is defined in the project, is attempted defined in the relay system in Connection Step two
WebSocket server；
C) teleinstruction that user inputs at the Distributed Application interface (DAPP) is extracted.
2) transaction is initiated, which is that intelligent contract of the node account into step 4 sends a certain number of generations
Coin TokenA.
3) control authority judgment method defined in intelligent contract is called in the trade fair in step 2), judges that sending this refers to
Whether the node account of order has the control authority to industrial control system:
A) judgment method of control authority defined in intelligent contract is called in the trade fair, and it is to send that this method, which inputs parameter,
The node account address of control instruction；
B) this method is by judging whether user's token tokenA judges whether the node possesses control for the node account
Permission is that can not actively obtain token tokenA forever due to forging node account, and this method can effectively judge whether to gather around
There is control authority；
If c) possessing control authority, this method returns to a true；Otherwise, false is protected.
If 4) the node account has control authority, pass through the long-range control that Websocket interface will extract in step 4
The relay system being sent in step 2 is instructed, the Utgard in relay system recycle step two sends remote control commands
To opc server (i.e. configuration software), safe long-range control is realized；If sending failure without control authority.
If 5) find the token quantity in node account that some has permission when lower than certain amount and being 0 (as lower than 2
When a token tokenA), then the automatic token transfer account method called in intelligent contract is provided a certain number of to the node account
Token.
The features such as present invention is executed automatically using the middle intelligent contract of block chain and cost under fire is very big, for work
The instruction control of industry control system medium-long range is easily forged the safety problem that node sends malice control instruction, constructs based on block
Teleinstruction control system in the industrial control system of chain technology.Distributed Application has been built using Truffle and Vue
(DAPP), user is inputted in this application to after the remote control commands of industrial control system and transmission, and system will initiate one
The address of transaction, Xiang Zhineng contract sends a token, which, which is issued and be distributed to by intelligent contract, possesses control authority
Node account.The judgment method that control authority is carried out to the node account for initiating transaction is defined in intelligent contract, according to section
Whether point account possesses token to judge whether the node possesses control authority, and the generation can not actively be obtained forever by forging node
Coin.And traditional method is usually to be physically isolated, and industrial control system network and outer net are completely cut off, and can prevent to forge node
Intrusion, but due to reducing the connectivity with internet, cannot achieve but also such as place remote monitors such function.
In comparison, method of the invention utilizes puppet on the basis of keeping industrial control system and internet to have adequately internuncial
The characteristic for the token issued in intelligent contract can not actively be obtained by making node forever, ensure that the safety of teleinstruction control.
Claims (7)
1. a kind of industrial control system teleinstruction control method based on block chain technology, it is characterised in that including following step
It is rapid:
1) OPC environment configurations are carried out in a computer, correlated variables are created in configuration software, and be set as opc server；
2) as relay system and configuration software and block link network are realized using Java and Tomcat building Java Web server
Network communication；
3) using the public block platform chain of open source, block chain private chain is built in ether mill in the network where industrial control system
Network；
4) intelligent contract is write, issue token in intelligent contract and is distributed to the node for the limit that is possessed of control power, and in this, as
Control authority Rule of judgment；
5) Distributed Application is built using Truffle frame and Vue, writes program code and extracts the teleinstruction that user sends,
Initiating a transaction calls the control authority judgment method of intelligent contract to carry out permission judgement to node account.
2. a kind of industrial control system teleinstruction control method based on block chain technology as described in claim 1, feature
It is in step 1), it is described to carry out OPC environment configurations in a computer, correlated variables is created in configuration software, and be arranged
For opc server method particularly includes:
1.1 installation OPC drivings in a computer first, and to environment configurations needed for computer progress opc server；
1.2 create the variable control of character string type in configuration software, for storing remote control commands, and by configuration
Software is set as opc server.
3. a kind of industrial control system teleinstruction control method based on block chain technology as described in claim 1, feature
It is in step 2), it is described as relay system and to realize that configuration is soft using Java and Tomcat building Java Web server
Part is communicated with block chain network method particularly includes:
2.1 build Java Web server using Java and Tomcat；
2.2 call Utgard to communicate with opc server in Java Web；
2.3 define WebSocket server in Java Web, communicate it with block chain network Distributed Application；
The network port number that 2.4 setting Java Web projects are disposed；
2.5 communicate with Distributed Application.
4. a kind of industrial control system teleinstruction control method based on block chain technology as described in claim 1, feature
It is in step 3), the public block platform chain using open source, ether mill is in the network where industrial control system
Build block chain private chain network method particularly includes:
3.1 in a computer install block chain development platform ether mill needed for environment；
3.2 newly-built block chains create generation block；
3.3 starting block chain private chain nodes；
3.4 are carried out step 3.1,3.2 and 3.3 in needing each computer as block chain node, so far complete area
The local private chain network of block chain is built.
5. a kind of industrial control system teleinstruction control method based on block chain technology as described in claim 1, feature
It is in step 4), it is described to write intelligent contract, token is issued in intelligent contract and is distributed to the section for the limit that is possessed of control power
Point, and in this, as control authority Rule of judgment method particularly includes:
4.1 write intelligent contract code using Solidity language, issue token tokenA and are distributed to the limit that is possessed of control power
Node account；
4.2 defined in intelligent contract token transfer accounts with control authority judgement the methods of；
The intelligent contract write in 4.3 compilation steps 5.1 is simultaneously deployed in the block chain private chain network built in step 3).
6. a kind of industrial control system teleinstruction control method based on block chain technology as described in claim 1, feature
It is in step 5), it is described to build Distributed Application using Truffle frame and Vue, it writes program code and extracts user's hair
The teleinstruction sent initiates a transaction and the control authority judgment method of intelligent contract is called to carry out permission judgement to node account
Method particularly includes:
5.1, which write code using Truffle frame and Vue, realizes Distributed Application, and inputs on the page to user corresponding
Remote control commands extract；
5.2 initiate a transaction, which sends a certain number of tokens to the intelligent contract in step 4) for the node account
TokenA；
Control authority judgment method defined in intelligent contract is called in 5.3 trade fair in step 5.2, judges to send the instruction
Node account whether there is the control authority to industrial control system；
It, will the middle remote control commands extracted of step 1) by Websocket interface if the 5.4 node accounts have control authority
The relay system being sent in step 2), relay system recycle step 2) in Utgard remote control commands are sent to
Opc server realizes safe long-range control；If sending failure without control authority；
If 5.5 when finding that token quantity in the node account that some has permission lower than certain amount and is 0, automatic to call
Token transfer account method in intelligent contract provides a certain number of tokens to the node account.
7. a kind of industrial control system teleinstruction control method based on block chain technology as claimed in claim 6, feature
If be to find the token quantity in node account that some has permission lower than 2 token tokenA, it is automatic that intelligence is called to close
Token transfer account method in about is lower than 2 tokens to the node account granting.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910235702.0A CN110049111A (en) | 2019-03-27 | 2019-03-27 | A kind of industrial control system teleinstruction control method based on block chain technology |
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Application publication date: 20190723 |