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High-precision network time unifying device and method

A network time, high-precision technology, applied in the direction of time division multiplexing system, electrical components, multiplexing communication, etc., can solve the problems of complicated maintenance, expensive hardware cost, unsuitable for use, etc., and achieve simple installation and use Convenience, low cost effect

Inactive Publication Date: 2016-02-17
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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  • High-precision network time unifying device and method
  • High-precision network time unifying device and method
  • High-precision network time unifying device and method

Examples

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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 invention relates to the technical field of space-time consistency of all simulation real objects in a network, and discloses a high-precision network time unifying device and method. The device employed by the method comprises a time server and a client. The time server is connected with the client through the network, and the time server is formed by the connection of a PCI interface and a PCI time unifying demodulation card. A radio frequency input end of the PCI time unifying demodulation card is connected with a GPS / BD dual-mode antenna through a signal line. A data input end of the PCI time unifying demodulation card is connected with an IRIG-B time code signal source through a signal line. The high-precision network time setting and network frequency modulation enables the time bias of each network client to be less than or equal to 1ms. The device can provide in-network overall consistent natural time or simulation time for a plurality of application progresses or users, and can achieve the accelerating or slowing of the in-network overall simulation time. The device is low in cost, and is small in network bandwidth occupation and computer resource occupation.

Description

Technical field [0001] The present invention involves the technical fields with the same time and space of the various imitation of the reality in the network, and especially involve a unified installation of high -precision network time. The present invention is mainly used in a computer network application system with high time and accuracy.Many simulation seats of large computer network simulation systems in multiple locations provide highly unified natural time and simulation time. The simulation time is used to characterize the time in the virtual space and space of the simulation system, and it is also suitable for other network users at the same time.Precise time -time system. Background technique [0002] The large number of simulation seats in large computer network simulation systems is huge, and often requires the simulation system to divide the simulation system into several subsystems according to the needs of the task. For the safety needs of the simulation systemWa...

Claims

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Application Information

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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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