System and method for integration of change information collection and spatiotemporal data update]

A technology of changing information and spatio-temporal data, applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., can solve the problem of not considering the method of changing information acquisition and docking, so as to improve the degree of automation, improve labor efficiency, and reduce inconsistencies The effect of sexual misconduct

Inactive Publication Date: 2010-02-10
CENT SOUTH UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The above methods only theoretically analyze and discuss certain changes, reasons for changes, and possible data organization

Method used

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  • System and method for integration of change information collection and spatiotemporal data update]

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Experimental program
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Embodiment 1

[0040] The implementation of the present invention mainly includes three items: 1. change information collection and incremental information file generation, 2. data communication between the change information collection terminal and the main (client) database server, 3. main (client) database incremental update. The specific implementation manners of these three links are described respectively below.

[0041] 1. Change information collection and incremental information file generation

[0042] The functions of change information collection and incremental information file generation are realized by the change information collection system. Such as figure 2 As shown, the change information acquisition system is installed on a portable intelligent terminal (such as PDA, notebook computer, tablet computer, etc.), which includes a spatial data acquisition module, which can be connected to GNSS, total station, omnipotent instrument, etc. for ground spatial information acquisit...

Embodiment

[0051] The PDA device with Microsoft windows mobile 5.0 operating system is used as the intelligent terminal. Using Microsoft VisualStudio 2005 as the development platform, using VC++ language programming, research and development of a change information collection system: eVillage Collection 1.0, which realizes the functions of change information collection and incremental information file generation.

[0052] 2. Change the data communication between the information collection terminal and the main (client) database server

[0053] The change information collection terminal is a mobile terminal, and generally there is a certain distance between the data collection terminal and the main (client) database server. At present, the communication technology is very developed, which can completely support the efficient communication between the mobile terminal and the remote server.

[0054] Implementation example:

[0055] The inventor and his research group adopt the wireless ne...

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Abstract

The invention discloses a system and a method for integration of change information collection and spatiotemporal data update. The system comprises a geospatial change information collecting terminal,a main database server and a client database server. The method comprises the following steps: step 1, obtaining present map data; step 2, carrying out changing surveying on geospatial sites to generate incremental information files; step 3, sending the incremental information files to the main database server and the client database server by the geospatial change information collecting terminalthrough a communication network; and step 4, timely updating a geospatial database in a database server by the main database server and the client database server according to the received incremental information files. The method improves the automation degree of spatiotemporal data update and consistency maintenance through integration of change information collection and update, accelerates the reaction speed of spatiotemporal data and reduces the burden of network transmission.

Description

technical field [0001] The invention belongs to the technical field of spatio-temporal database updating, and relates to a system and method integrating change information collection and spatio-temporal data updating. Background technique [0002] Spatio-temporal database update is based on the original database, using the geospatial change target information that reflects the current situation of the research area (including terrain, landform, features, etc.), to correct, supplement and update the corresponding data in the original database, so as to truly reflect the Its status quo, the process of preserving historical data and aligning the status quo of the database with the actual status quo. [0003] Spatial database update generally includes three basic links: discovery and extraction of change information, master database update, user database update, and three basic modes: regular update, fixed change degree update, and incremental update. Incremental update is the ...

Claims

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Application Information

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IPC IPC(8): G06F17/30
Inventor 周晓光陈军刘万增曾联斌刘军生邢汉发
Owner CENT SOUTH UNIV
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