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Method and system for realizing terminal track playback in network geographic information system

A geographic information system and trajectory playback technology, applied in the field of satellite positioning and navigation, can solve the problems of large network traffic and long time required, and achieve the effect of small transmission data and short transmission time

Inactive Publication Date: 2010-05-12
SHENZHEN CLOU ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, although the above-mentioned functions can also be realized, the entire display page is updated when it is updated, so it takes a long time and the network traffic required to complete the update is relatively large

Method used

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  • Method and system for realizing terminal track playback in network geographic information system
  • Method and system for realizing terminal track playback in network geographic information system
  • Method and system for realizing terminal track playback in network geographic information system

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Embodiment Construction

[0043] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0044] Such as figure 1 As shown, in the method and system embodiment for realizing terminal track playback in the WebGIS system of the present invention, its system structure is not different from the system structure in the prior art. In this embodiment, it is different from the prior art The most important thing is that the server and the client communicate and update the data (that is, realize the terminal track playback) in different ways, as well as the corresponding structures that must be possessed in order to realize the track playback method. exist figure 1 Among them, GPS terminal 91, satellite 92, GPRS or CDMA wireless network 93, GIS gateway 94, GIS database 95, GIS server 96 and client 97 installed on the electric emergency repair vehicle are included, wherein terminal 91 is installed on the vehicle, and with the vehicle Mobile, which rec...

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PUM

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Abstract

The invention relates to a method for realizing terminal track playback in a network geographic information system. The method comprises the following steps that: a client generates and transmits a track playback request with a track playback parameter in an asynchronous data transmission mode; a server receives the request and processes the data associated with the request to form updated data; a server-side transmits the updated data to the client in the asynchronous data transmission mode; and the client receives the updated data and updates a track image layer. The invention also relates to the network geographic information system. The method and the system for realizing the terminal track playback in the network geographic information system of the invention have the following advantages that: the data transmission amount is less and the transmission time is shorter, because the track playback request and the updated data are both transmitted in the asynchronous data transmission mode, and the image layer to be updated is searched in the server according to the parameter in the request, and return data is formed.

Description

technical field [0001] The present invention relates to the field of satellite positioning and navigation, more specifically, to a method and system for realizing terminal track playback in a network geographic information system (ie, WebGIS). Background technique [0002] In the call center system, for example, the electric power 95598 call center, in order to make full and effective use of various repair vehicles, it is necessary to track, monitor, command and dispatch the electric repair vehicles within the jurisdiction. figure 1 It is a structural diagram of a typical power call center GIS (Geographic Information System) system. The system is generally composed of GPS data acquisition system and GIS application system. For the GPS data acquisition system, the GPS terminal is generally installed on the emergency repair vehicle. The GPS terminal sends the geographical location and other information at each moment to the GIS system gateway in the form of data packets in re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30G01C21/32G06T17/50G06T17/05
Inventor 陈鹏举
Owner SHENZHEN CLOU ELECTRONICS
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