CN114218776A - Distributed simulation implementation method based on block chain - Google Patents
Distributed simulation implementation method based on block chain Download PDFInfo
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- CN114218776A CN114218776A CN202111481595.3A CN202111481595A CN114218776A CN 114218776 A CN114218776 A CN 114218776A CN 202111481595 A CN202111481595 A CN 202111481595A CN 114218776 A CN114218776 A CN 114218776A
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- 238000004088 simulation Methods 0.000 title claims abstract description 86
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000005516 engineering process Methods 0.000 claims abstract description 12
- 230000010485 coping Effects 0.000 claims 1
- 238000012545 processing Methods 0.000 description 2
- 238000012549 training Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
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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
- H04L67/10—Protocols in which an application is distributed across nodes in the network
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2111/00—Details relating to CAD techniques
- G06F2111/02—CAD in a network environment, e.g. collaborative CAD or distributed simulation
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Abstract
The invention discloses a distributed simulation implementation method based on a block chain, and relates to the technical field of simulation, in particular to the field of aerospace simulation deduction. The invention provides a decentralized distributed simulation method based on a block chain technology. Decentralized distributed simulation of any time granularity and flexible and variable simulation time proportion is realized through a block chain technology, a second-level consensus algorithm and a vote rejection power, and the constraint of a central server and the stability of a network is eliminated.
Description
1 technical field
The invention discloses a distributed simulation implementation method based on a block chain, and relates to the technical field of simulation, in particular to the field of aerospace simulation deduction.
2 background of the invention and concepts
2.1 simulation deduction technique
The simulation deduction technology is characterized in that a reference person is enabled to be familiar with the characteristics and the rules of novel equipment as soon as possible through a simulation training mode, the work of test launching, organization and command, management and guarantee and the like is perfected, and a training environment which is similar to a real battlefield can be provided for army command decisions, office services and basic-level teams.
The traditional simulation deduction is based on a C/S (client/server) architecture, the load of a server is heavy, and when the network fluctuates and the server goes down, all simulations need to be stopped.
2.2 Block chaining techniques
The blockchain technology refers to a technical combination of data exchange, processing and storage formed among a plurality of participants based on modern cryptography, distributed consistency protocols, point-to-point network communication technology, intelligent contract programming language and the like. The block chain technology realizes decentralized and distributed storage of data. Also called public database (or public ledger).
2.3 complete decentration
A network architecture mode in which the network has no owner and is completely open to the outside. Each node in the network may choose to have the same rights. On a completely decentered block chain network, all nodes can read and write block chain data, and can participate in a consensus process as nodes for data maintenance and participate in generation and identification of latest block data.
Disclosure of the invention
The invention provides a decentralized distributed simulation method based on a block chain technology. Decentralized distributed simulation of random time granularity and flexible variable simulation time proportion is achieved through a block chain technology, a second-level consensus algorithm and a vote rejection power.
3.1 the technical solution problem of the invention is:
1) when the simulation is advanced, the central server is excessively depended, so that the load of the central server is huge. Failure of the central server can result in termination of the entire emulation process.
2) When the simulation is advanced, the requirement on the network quality is high, and the simulation member generally needs to transmit the simulation data to the central server within a specified time (such as 1 second, 100 milliseconds, and the like), wait for the central server to perform the resolving process on the simulation data, and receive the processing result of the central server on the simulation data. When the network fluctuates, all simulation members are forced to enter a waiting state, so that the simulation speed is slowed down.
3) When the simulation is advanced, the requirement on the synchronism of time is high. When the simulation is started, a time server is usually needed to time all members in the simulation network, but because of the unpredictability of network delay, the simulation times of all the simulation members are not strictly synchronous and can only be guaranteed within a certain error range.
4) When simulation is advanced, different simulation members have different scaling ratios to simulation time, so that all simulation members need to carry out simulation advance according to the member with the slowest advancing speed.
3.2 the technical solution of the invention is:
the transmission and storage of simulation data are completed based on the block chain technology, and the dependence of a simulation network on a central server is eliminated. The requirement of simulation members on high real-time performance of simulation time is eliminated through the on-chain time and consensus of the block chain.
3.3 compared with the prior art, the gain of the invention is as follows:
1) when the simulation is advanced, the simulation is advanced by each member based on a P2P network without management of a central server. The simulation can be started as long as the number of online members is more than or equal to 1, and the single-machine simulation is performed when the number of members is 1. The offline or failure of any number of members does not affect the progress of the simulation.
2) When the simulation is advanced, the requirement on the network quality is lower, a plurality of members exchange data with each other, but the data of all simulation members is not required, and the simulation can be advanced continuously as long as the data of the members concerned by the simulation is obtained, so that the requirement on the network quality by the simulation is lower, and the simulation speed can be faster.
3) When the simulation advances, simulation members are insensitive to the synchronism of the simulation time, and all members advance based on the on-chain time.
4) When the simulation is advanced, as long as data does not conflict, simulation members can advance the simulation according to the time scaling of the members, and the members with low simulation speed do not need to wait.
Detailed description of the preferred embodiments
4.1 any member initiates simulation to generate a created block, wherein the created block has a unique identification code and stores the detailed task information of the simulation, the simulation rule, the simulation time, the simulation data, the roles and the members participating in the simulation, the node currently having the accounting right and the next node having the accounting right.
4.2 the computer initiating the simulation broadcasts the created block to the local network through UDP, the node receiving the block can choose whether to join the simulation or not, and also can freely mark the role of the node. After the information is successfully added, the information of the user is sent to the node with the accounting right, then the information is broadcasted to the whole network, and the user becomes a simulation member according to the rule restriction of the creation block.
4.3 when the simulation is advanced, the simulation member searches the data information needed by the simulation from the chain, sends the simulation result to the node with the accounting right, and broadcasts the simulation result to the whole network. Considering the situations of network interruption and the like, the node needs to continuously pay attention to the change of data on the chain, and when the input information changes, the simulation result is modified according to the information change to re-uplink.
4.4 the nodes of the whole network maintain a simulation data buffer pool, and the buffer pool records simulation data which are not linked. And (4) switching accounting rights is selected randomly, and when the accounting rights are switched every time, a node for acquiring the accounting rights next time needs to be elected, so that the nodes of the whole network are ready for switching in advance.
4.5 when the part of nodes are disconnected with the nodes with the accounting right, the part of nodes select new nodes with the accounting right, continue accounting, and merge the two chains when the network recovers. And (4) merging the data or simulation results with conflict, and modifying the simulation results according to the sequence relation of time on the chain.
4.6 the process of 4.3, 4.4 and 4.5 is repeated until the simulation is finished.
And (4) carrying out simulation deduction by a decentralized distributed simulation method based on a block chain technology. The method realizes the personalized time granularity of each simulation member and the flexible and variable simulation time proportion, and gets rid of the constraint of the stability of a central server and a network.
The invention is not described in detail and is within the knowledge of a person skilled in the art.
Claims (5)
1. A distributed simulation implementation method based on a block chain is characterized in that a block chain technology, a second-level consensus algorithm and a ticket veto measure are adopted.
2. The method of claim 1, wherein: and a block chain technology is adopted, a database is maintained in the whole network, and simulation data and processes are recorded.
3. The method of claim 1, wherein: and controlling the simulation delay within an acceptable range by adopting a second-level consensus algorithm.
4. The method of claim 1, wherein: the random switching and selection of the accounting right and the advance determination of the next accounting node are used for coping with network fluctuation and temporary network interruption.
5. The method of claim 1, wherein: and a vote rejection is adopted to solve the conflict problem when the data on the links are merged after the network is interrupted.
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| CN202111481595.3A CN114218776A (en) | 2021-12-03 | 2021-12-03 | Distributed simulation implementation method based on block chain |
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| CN202111481595.3A CN114218776A (en) | 2021-12-03 | 2021-12-03 | Distributed simulation implementation method based on block chain |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115952237A (en) * | 2023-01-28 | 2023-04-11 | 北京星途探索科技有限公司 | Multi-terminal data fusion system |
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| WO2019072288A2 (en) * | 2018-11-30 | 2019-04-18 | Alibaba Group Holding Limited | Testing platform for blockchain networks |
| CN110879898A (en) * | 2019-10-25 | 2020-03-13 | 国网山东省电力公司烟台供电公司 | Power grid data integrity detection system and detection method based on block chain technology |
| CN111400403A (en) * | 2020-03-14 | 2020-07-10 | 北京工业大学 | Distributed verification method for authenticity of Internet of things data based on block chain technology |
| CN112217664A (en) * | 2020-09-22 | 2021-01-12 | 江汉大学 | Distributed parallel simulation method, device and system based on autonomy |
| KR20210061754A (en) * | 2019-11-20 | 2021-05-28 | 포항공과대학교 산학협력단 | Blockchain network simulation for verifying performance of consensus algorithms |
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2021
- 2021-12-03 CN CN202111481595.3A patent/CN114218776A/en active Pending
Patent Citations (7)
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| CN103077068A (en) * | 2012-12-27 | 2013-05-01 | 北京仿真中心 | Realizing method for shared memory based high-performance simulation system |
| CN108833081A (en) * | 2018-06-22 | 2018-11-16 | 中国人民解放军国防科技大学 | Block chain-based equipment networking authentication method |
| WO2019072288A2 (en) * | 2018-11-30 | 2019-04-18 | Alibaba Group Holding Limited | Testing platform for blockchain networks |
| CN110879898A (en) * | 2019-10-25 | 2020-03-13 | 国网山东省电力公司烟台供电公司 | Power grid data integrity detection system and detection method based on block chain technology |
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