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Data synchronization method and device of distributed system

A distributed system and data synchronization technology, applied in the direction of time division multiplexing system, electrical components, multiplexing communication, etc., can solve problems such as inability to guarantee accurate data synchronization

Active Publication Date: 2015-10-21
GUANGDONG VTRON TECH CO LTD
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  • Application Information

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Problems solved by technology

Therefore, the synchronization mechanism based on timestamp cannot guarantee the precise synchronization of data.

Method used

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  • Data synchronization method and device of distributed system

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Embodiment Construction

[0028] In order to better understand the technical problems to be solved, the adopted technical solutions and the achieved technical effects of the present invention, the specific implementation of the distributed system data synchronization method and device of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be noted that the first similarity, second similarity, and similarity appearing in the text are the same concept, which are only used to distinguish them clearly and concisely. The first, second, etc. words appearing in each module are not accurate The order and quantity are limited.

[0029] Such as figure 1 As shown, a distributed system data synchronization method, including steps:

[0030] S110. Select a cache queue from each cache queue as a reference queue;

[0031] S120. Detect whether the frame number of the current frame of other cache queues is the same as the frame number of the reference curren...

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Abstract

The invention relates to a data synchronization method and a data synchronization device of a distributed system, which are based on frame numbers and sift characteristic vectors. The method is divided into two situations according to the frame numbers: when the frame numbers are the same, searching a frame, wherein the frame number of the frame is the same as the frame number of a reference current frame, and the similarity between a characteristic vector of the frame and a characteristic vector of the reference current frame is 1; if the frame can be searched, then directly displaying the frame; and if the frame cannot be searched, then taking the buffering queue as a new reference queue, and then carrying out re-judgment; and when the frame number is not the same, searching a frame, wherein the similarity between the characteristic vector of the frame and the characteristic vector of the reference current frame is 1; if the frame can be searched, then directly displaying the frame; and if the frame cannot be searched, then taking the buffering queue as a new reference queue, wherein the buffering queue is used as a reference, and then carrying out re-judgment. According to the method and device, the queue which is displayed fastest in a plurality of queues is used as a reference, and frames displayed synchronously are searched according to the similarity of the characteristic vectors, so that precise synchronization of data can be realized; besides, the method has the advantages of being fast in processing speed, stable and reliable, etc.

Description

technical field [0001] The invention relates to the technical field of industrial systems, in particular to a distributed system data synchronization method and a distributed system data synchronization device. Background technique [0002] As industrial systems become more and more complex, distributed systems are also increasing. Distributed systems have the advantages of stability, fault tolerance, and scalability. It is easier to construct stable and efficient applications by using distributed systems. However, the use of distributed systems still has great challenges, the core of which is the synchronization problem between different systems. [0003] In a distributed video display system, such as figure 1 As shown, if each screen of the splicing wall displays different videos separately, there is no synchronization problem, but if the same signal source is opened on several screens, such as in figure 1 If the line area shown is connected to the same signal source, t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04J3/06
Inventor 沈三明
Owner GUANGDONG VTRON TECH CO LTD
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