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Time consistency synchronization method for distributed simulation

A distributed simulation and consistency technology, applied in the directions of synchronizing information channels, generating/distributing signals, time-division multiplexing systems, etc. The effect of correctness and scale

Active Publication Date: 2020-09-08
HARBIN ENG UNIV
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Problems solved by technology

[0006] The purpose of the present invention is to provide a time consistency synchronization method for distributed simulation that solves the problem of low time consistency in distributed simulation systems in the prior art

Method used

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  • Time consistency synchronization method for distributed simulation
  • Time consistency synchronization method for distributed simulation
  • Time consistency synchronization method for distributed simulation

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Embodiment 1

[0075] In this embodiment, the master clock controls the synchronization of other clocks in the network, that is, the slave clock. Clock control information is exchanged between the master clock and other local slave clocks to synchronize the local slave clocks with the master clock. The clock control information exchanged includes: the identification code of the slave clock; the current logical time of the slave clock; the minimum logical time advancement of the slave clock; the attempt of the slave clock to advance to the logical time; Response information after receiving the time advancement request of the slave clock; Vote information used for voting on the selection of the master clock after the current master clock is down.

[0076] Such as figure 1 As shown, the simulation node includes three working threads, namely: transaction processing working thread T1, network connection monitoring thread T2, and network communication working thread T3. The network communication...

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Abstract

The invention belongs to the technical field of time synchronization of computer co-simulation, and particularly relates to a time consistency synchronization method for distributed simulation. According to the time consistency synchronization method, the most appropriate master party clock is selected according to votes, other clocks in a network are controlled to synchronize by using the masterparty clock, therefore, the consistency of data of each node and time-related events in time logic is ensured, even if a certain simulation node goes down, the influence on other links of the whole system is relatively small, decentration can be effectively carried out, the time consistency can be ensured to the greatest extent, and the correctness and the scale of the whole distributed system areensured.

Description

technical field [0001] The invention belongs to the technical field of time synchronization of computer cooperative simulation, and in particular relates to a time consistency synchronization method of distributed simulation. Background technique [0002] Due to its low cost, repeatable and non-destructive characteristics, the distributed simulation system has gradually become an important evaluation and test method. It has developed rapidly in high-tech fields such as shipbuilding, aerospace, oil and gas exploration, and large-scale equipment installation. In a distributed simulation system, multiple computers distributed in different locations jointly complete the simulation task. Each completes the mutual communication and data interaction through the computer network. Since each node is distributed in different geographical locations, how to ensure the consistency of the data of each node and the time-related events in terms of time logic is a key problem that the dist...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04J3/06
CPCH04J3/0638G06F1/12G06F30/3308G06F30/3312G06F30/396G06F2119/12H04L7/0012
Inventor 昝英飞袁利毫钟声华韩端锋祝海涛
Owner HARBIN ENG UNIV
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