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
CN106160905BActive Publication Date: 2018-10-23上海航天智能装备有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
上海航天智能装备有限公司
Publication Date
2018-10-23

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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.
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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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