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Hybrid Network Clock Synchronization System

A network clock and synchronization system technology, applied in the field of communication, can solve the problems of high price and achieve the effects of strong versatility, guaranteed synchronization, and reduced hardware costs

Active Publication Date: 2018-10-23
上海航天智能装备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is that every machine that needs to be synchronized needs to install GPS, which is expensive

Method used

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Embodiment Construction

[0045] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. This embodiment is carried out on the premise of the technical solution of the present invention, and detailed implementation and specific operation process are given, but the protection scope of the present invention is not limited to the following embodiments.

[0046] Such as figure 1 As shown, a hybrid network clock synchronization system includes a master communication controller 1, a plurality of slave communication controllers and a plurality of stations, and the plurality of slave communication controllers are divided into a plurality of first slave communication controllers 2 and a plurality of The second slave communication controller 3, multiple stations are divided into a first station 4 and a plurality of second stations 5, such as figure 2 As shown, both the master communication controller 1 and the slave communication controlle...

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Abstract

The invention relates to a hybrid network clock synchronizing system and method thereof. The system comprises a main communication controller, a plurality of slave communication controllers and a plurality of radio stations, each of the main communication controller and the slave communication controllers comprises a main control module for synchronizing an internal clock, a backboard provided with a communication interface and a radio station adapting module connected with the main control module through the communication interface and a plurality of wired remote transmission modules, the clock synchronization between the main control modules in the main communication controller and the slave communication controllers and the radio station adapting modules and the plurality of wire remote transmission modules is realized through only one bidirectional hardware signal. Compared with the prior art, the system and method disclosed by the invention have the advantages as follows: the hardware cost is lowered, and interconnected signals are reduced.

Description

technical field [0001] The invention belongs to the technical field of communication and relates to a network clock synchronization system, in particular to a hybrid network clock synchronization system. Background technique [0002] Network clock synchronization is a problem faced in network measurement. Clock asynchrony will affect the measurement accuracy related to time information such as delay and jitter. At the same time, in terms of network host collaboration, maintaining the clock synchronization of hosts in the network is to ensure its effectiveness. basis of work. [0003] In a hybrid network, the IEEE 1588 protocol is a more accurate clock synchronization solution in Ethernet, and its basic function is to keep other clocks in the distributed network synchronized with the most accurate clock. A precision time protocol (Precision Time Protocol PTP) is defined in the IEEE 1588 protocol, which is used to sub-scale the clocks in sensors, actuators and other terminal ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04J3/06H04B1/7156
Inventor 许小青
Owner 上海航天智能装备有限公司
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