A Time Consistent 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: 2022-08-02
HARBIN ENG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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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  • A Time Consistent Synchronization Method for Distributed Simulation
  • A Time Consistent Synchronization Method for Distributed Simulation
  • A Time Consistent Synchronization Method for Distributed Simulation

Examples

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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 clocks. 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 exchanged clock control information includes: the identification code of the slave clock; the current logical time of the slave clock; the minimum logical time advance of the slave clock; the slave clock attempts to advance to the logical time; Response information after receiving the time advance request of the slave clock; Vote information for voting on the selection of the master clock after the current master clock is down.

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

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Abstract

The invention belongs to the technical field of time synchronization of computer collaborative simulation, in particular to a time consistency synchronization method of distributed simulation. The present invention selects the most suitable master clock according to the votes, and then uses the master clock to control the synchronization of other clocks in the network, so as to ensure the consistency of the data of each node and the time-related events in the time logic, even if a simulation Node downtime has little impact on other links of the entire system, can effectively decentralize, can ensure the consistency of time to the greatest extent, and ensure the correctness and scale of the entire distributed system.

Description

technical field [0001] The invention belongs to the technical field of time synchronization of computer collaborative simulation, in particular to a time consistency synchronization method of distributed simulation. Background technique [0002] Distributed simulation system has gradually become an important evaluation and test method because of its low cost, repeatability and non-destructive characteristics. It has achieved rapid development in high-end fields such as ships, aerospace, oil and gas exploration, and large-scale equipment installation. In a distributed simulation system, multiple computers distributed in different locations work together to complete the simulation task. Each completes mutual communication and data exchange 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 time logic is a key problem to be solved in the distrib...

Claims

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Application Information

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Patent Type & AuthorityPatents(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
OwnerHARBIN ENG UNIV