Display synchronization method, server and client

A display synchronization and client-side technology, applied in synchronization devices, digital transmission systems, electrical components, etc., can solve the problems of multi-terminal display asynchrony, inconsistent targets, and synchronization confusion.

Inactive Publication Date: 2014-08-06
GUANGDONG VTRON TECH CO LTD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] However, in practical applications, when the frequency of operation is too high, sending synchronization commands too fast will cause network congestion, resulting in asynchronous display, especially when multiple clients control at the same time, each client sends a synchronization instruction The goals of the instructions are inconsistent. Due to the difference in network delay or client processing speed, one client may be synchronized while the other client is not synchronized, and the respective operations will be issued in a state of multi-terminal unsynchronized synchronization. Instructions, it may further cause synchronization confusion, resulting in multi-terminal display out of synchronization

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  • Display synchronization method, server and client
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  • Display synchronization method, server and client

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Embodiment Construction

[0092] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present invention.

[0093] It should be understood that although the terms first, second, etc. may be used to describe each client in the embodiment of the present invention, the client should not be limited to these terms. These terms are only used to distinguish clients from one another. For example, without departing from the scope of the embodiments of the present invention, the first client may also be called the second client, and similarly, the second client may also be called the fir...

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Abstract

The embodiment of the invention discloses a display synchronization method, a server and a client, for ensuring the synchronous display of a plurality of clients. The method disclosed by the embodiment of the invention comprises the following steps: the server caches each service object in a three-dimensional GIS (geographic information system) real-time rendering list at first, and then obtains the real-time data of the first client, retrieves the cached service objects according to the real-time data to obtain real-time service objects, carry out corresponding processing on the real-time service objects according to the real-time data to obtain the synchronization data of the real-time service objects, sends a synchronization message to the second client so as to enable the second client to read the synchronization data of the real-time service objects, and carries out synchronous display on the real-time service objects according to the synchronization data of the real-time service objects.

Description

technical field [0001] The invention relates to the display field, in particular to a display synchronization method, server and client. Background technique [0002] With the deepening of geographic information system (Geographic Information System or Geo-Informationsystem, GIS) application, more and more people require to deal with problems from real three-dimensional space. In departments with strong application requirements, such as mining, geology, petroleum and other fields, it has taken the lead in developing dedicated 3D GIS with partial synchronous display functions. [0003] At present, the synchronization method based on 3D GIS is to send a synchronization command according to the operating frequency of the client. Every time a client operates, it sends a synchronization command to other clients to perform multi-terminal display synchronization. [0004] However, in practical applications, when the frequency of operation is too high, sending synchronization comma...

Claims

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Application Information

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IPC IPC(8): H04L29/08H04L29/06H04L7/00
Inventor林良辉
OwnerGUANGDONG VTRON TECH CO LTD