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A high-precision network time unification device and method

A network time, high-precision technology, applied in time-division multiplexing systems, electrical components, multiplexing communications, etc., can solve the problems of complex use and maintenance, expensive hardware, unsuitable for use, etc., and achieve simple installation and use. Convenient and low-cost effect

Inactive Publication Date: 2017-12-22
UNIT 63892 OF PLA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although its time unification accuracy is very high, it is not suitable for large-scale users such as computer network simulation systems because of the use of a large number of dedicated cables and terminal hardware devices, resulting in expensive hardware costs and complicated use and maintenance.

Method used

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  • A high-precision network time unification device and method
  • A high-precision network time unification device and method
  • A high-precision network time unification device and method

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Embodiment Construction

[0068] Such as figure 1 , 2 , 3, 4, 5, 6, and 7, a high-precision network time unification device, at least one network time unification device includes: a time server, a client computer, and the time server is connected to the client computer through the network, so The time server is composed of a PC server connected to a PCI time system demodulation card through a PCI interface, and the radio frequency input terminal provided by the PCI time system demodulation card is connected with a GPS / BD dual-mode antenna through a signal line, and the PCI time system demodulation card The data input end of the adjustment card setting is connected to the IRIG-B time code signal source through the signal line.

[0069] The PCI time system demodulation card is connected by a time code demodulation unit and a high-precision time-keeping unit, and the input end of the time code demodulation unit is provided with a radio frequency signal interface and a digital signal interface, and the ra...

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Abstract

The present invention relates to the technical field of consistent time and space of simulation entities in the network, and discloses a high-precision network time unification device and method. The device used in the method includes: a time server and a client, and the time server is connected to the client through the network , the time server is composed of a PC server connected to the PCI time system demodulation card through the PCI interface. The terminal is connected to the IRIG-B time code signal source through the signal line. The present invention uses high-precision network time synchronization and network frequency modulation, so that the time deviation of each client on the network does not exceed 1 ms; it can provide multiple application processes or users with a globally consistent natural time or simulation time in the network, and can realize global time in the network. Fast-forward and slow-down of simulation time; it has low cost and occupies less network bandwidth and computer resources.

Description

technical field [0001] The present invention relates to the technical field of time-space consistency of each simulation entity in the network, and in particular to a high-precision network time unification device and method. Numerous simulation seats of a large-scale computer network simulation system in multiple locations provide a highly unified natural time and simulation time, which is used to characterize the time in the virtual space-time of the simulation system, and is also applicable to other tasks that need to be performed on multiple network users at the same time A precise timing system. Background technique [0002] There are a large number of simulation seats in a large-scale computer network simulation system, and it is often necessary to divide the simulation system into several subsystems according to the task requirements, and flexibly deploy them in different locations. and other public networks are physically isolated. In the computer network simulatio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04J3/06
Inventor 薛芳侠谢虹余科洋刘波江淼刘文甫石川
Owner UNIT 63892 OF PLA
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