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Clock synchronization method and system

A clock synchronization and clock technology, applied in the field of communication, can solve problems such as clock synchronization of wireless mobile industrial equipment

Active Publication Date: 2019-08-13
DATANG MOBILE COMM EQUIP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Among them, only the precise synchronization of time among multiple movable industrial devices can effectively cooperate with each other, so strict requirements are put forward for the time synchronization among movable devices; The problem of time synchronization between industrial equipment, but cannot solve the problem of clock synchronization between wireless mobile industrial equipment

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  • Clock synchronization method and system
  • Clock synchronization method and system

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Embodiment Construction

[0031] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0032] One of the core ideas of the embodiment of the present invention is to integrate the industrial gateway in the industrial mobile device, and then the server can send the synchronization message to the base station, and the base station will send the synchronization message to the industrial mobile device through the wireless network, thereby realizing industrial Time synchronization between wireless devices.

[0033] refer to figure 1 , shows a structural block diagram of an embodiment of a clock synchronization system of the present invention, in the embodiment of the present invention, the system includes a server 10, a base station 20, and an industrial mobile device 30-3N, where N is an integer not less than 0; An indu...

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Abstract

The embodiment of the invention provides a clock synchronization method and system, the clock synchronization system comprises a server, a base station and at least one industrial mobile device, an industrial gateway is integrated on the industrial mobile device, and the server is used for obtaining a reference clock and generating a synchronization message according to the reference clock, and sending the synchronization message to the base station; the base station is used for receiving the synchronization protocol message and sending the synchronization message to the corresponding industrial mobile device; the industrial mobile device is used for receiving a synchronization message sent by a base station through the industrial gateway, analyzing the synchronous message to obtain corresponding clock information, and performing clock synchronization according to the clock information. Clock synchronization between the industrial wireless devices is realized.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a clock synchronization method and a clock synchronization system. Background technique [0002] With the continuous upgrading of industrial manufacturing systems such as Industry 4.0, intelligent manufacturing, and flexible manufacturing, due to the difficulties in cable laying, high maintenance costs, limited network coverage, poor scalability, and limited business volume and types in wired networks, etc. The problem is becoming more and more prominent, and modern industrial control systems are gradually developing towards intelligent coordination. For example, industrial equipment has developed from wired to wireless and mobile. [0003] Among them, only the precise synchronization of time among multiple movable industrial devices can effectively cooperate with each other, so strict requirements are put forward for the time synchronization among movable devices; The pro...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04J3/06H04L12/40
CPCH04J3/0658H04J3/0667H04L12/40H04L2012/40215
Inventor 刘华玲董书霞
Owner DATANG MOBILE COMM EQUIP CO LTD