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Time-giving system composed of dedicated optical route and method for implementing same

A technology of time service system and implementation method, which is applied in the direction of time division multiplexing system, transmission system, digital transmission system, etc., can solve the problem of low synchronization accuracy, and achieve the effect of improving security and ensuring information security

Inactive Publication Date: 2015-10-21
四川泰富地面北斗科技股份有限公司
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Problems solved by technology

[0017] Aiming at the technical problem of low synchronization accuracy in the time service system in the prior art that combines and transmits time frequency signals and business signals, the present invention discloses a time service system composed of a dedicated optical fiber time service device and a dedicated optical route and its implementation method

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  • Time-giving system composed of dedicated optical route and method for implementing same
  • Time-giving system composed of dedicated optical route and method for implementing same
  • Time-giving system composed of dedicated optical route and method for implementing same

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Embodiment Construction

[0036] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with specific embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0037] The invention discloses a time service system composed of a special optical fiber time service device and a special optical route, which specifically includes a clock source, a special fiber optic time service device specially used for time frequency synchronization arranged at each time service node, each dedicated to time frequency The synchronized dedicated optical fiber timing equipment transmits time and frequency signals through a dedicated optical route, and each of the dedicated optical fiber timing equipment dedicated to time and frequency synchronization is respectively provided with a time interface an...

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Abstract

The invention relates to the technical field of time synchronization and discloses a time-giving system composed of dedicated fiber time-giving devices and a dedicated optical route and a method for implementing same. The time-giving system comprises a clock source and dedicated fiber time-giving devices arranged at various time-giving nodes and specially used for time frequency synchronization. Each dedicated fiber time-giving device for time frequency synchronization transmits a time frequency signal via the dedicated optical route, is provided with a time interface and a frequency interface, is connected with an external optical communication device (or other device) through the time interface and the frequency interface, and provides a time signal and a frequency signal for the external optical communication device (or other device). According to the invention, each dedicated fiber time-giving device transmits the time frequency signal via the dedicated optical route so as to prevent interferences of service signals on the time frequency signal and achieve fast transmission speed and high time synchronization frequency precision.

Description

technical field [0001] The invention relates to the technical field of time synchronization, in particular to a time service system composed of a special optical fiber time service device and a special optical route and an implementation method thereof. Background technique [0002] At present, optical fiber communication network mainly adopts SDH (Optical Synchronous Digital Hierarchy) and Packet Transport Network (PTN) two kinds of optical transmission equipment. The frequency signal and the service signal are combined for transmission through optical fiber, and the receiving end separates the time-frequency signal from the service signal, and provides the time-frequency signal to the receiving end to achieve the purpose of synchronization between the sending end and the receiving end. [0003] In an SDH network, when SDH optical transmission equipment is used to transmit time and frequency references, no matter whether the service channel or the overhead channel is used, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04J3/06H04L12/701
Inventor 李有生彭良福李忠文李霖孟志才李高峰侯丙安
Owner 四川泰富地面北斗科技股份有限公司
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