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Method of updating and maintaining geographic data based on mobile programming application system

A geographic data and data technology, applied in the field of mobile geographic information system applications, can solve the problems of inconvenient data update in offline mode, high mobile traffic consumption, and increased business costs

Inactive Publication Date: 2018-02-06
常州市测绘院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the above-mentioned technical system has the following deficiencies: 1. In the online mode, during the planning and investigation of civil servants, the limitation of network bandwidth and stability may cause difficulties in data transmission and display, and the amount of planning-related data is large, and the mobile data consumption is high. Greatly increased business costs
2. There is a problem of inconvenient data update in offline mode

Method used

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  • Method of updating and maintaining geographic data based on mobile programming application system
  • Method of updating and maintaining geographic data based on mobile programming application system
  • Method of updating and maintaining geographic data based on mobile programming application system

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Experimental program
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Embodiment

[0034] Such as figure 1 As shown, this embodiment provides a method for updating and maintaining geographic data, including the following steps:

[0035] Step S1, update and preprocess the geographic data;

[0036] Step S2, updating the preprocessed geographical data into the database of the server; and

[0037] Step S3, the mobile terminal downloads and updates geographic data.

[0038] Wherein, the mobile terminal is for example but not limited to smart terminals such as mobile phones and IPADs.

[0039] The method for updating the geographic data in the step S1 includes: performing quality inspection on the geographic data; changing the coordinate system into an encrypted GCJ-02 coordinate system; adopting the byte replacement method to encrypt map tile data in tpk format; And use the AES encryption algorithm to encrypt the data stored in the database. This encryption uses a simple byte replacement algorithm to encrypt the index files and data configuration files (map t...

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Abstract

The invention relates to a method of updating and maintaining geographic data based on a mobile programming application system. The method of updating and maintaining geographic data includes the following steps that 1, the geographic data is updated and preprocessed; 2, the preprocessed geographic data is updated in a database of a server end; 3, a mobile terminal downloads the updated geographicdata. The system has the following advantages that 1, map tile data is encrypted by using a byte substitution method, and the map accessing and browsing speed is ensured on the basis that the data safety is ensured; 2, multi-version data management and polymorphic and multitemporal data mobile application are achieved; 3, data of the mobile terminal is updated through an online way, data application adopts an off-line mode, the data can be conveniently and fast updated, and the smoothness of the data application can be ensured. The method can be applied to mobile geographic information systemsoftware used for thematic map data browsing and querying and business data statistical analysis in the planning field.

Description

technical field [0001] The invention relates to the application field of mobile geographic information systems, in particular to a practical method for updating and maintaining geographic data in a mobile planning application system, which can be applied to mobile geographic information system software running on devices such as mobile phones and tablet computers. Background technique [0002] According to different data service methods, the application mode can be divided into two types: offline mode and online mode. Offline mode: Offline mode data is stored in the mobile terminal, and functional services such as acquisition, display, query, retrieval and analysis of spatial information are all completed by the mobile terminal without relying on the background server. Online mode: The mobile terminal device is connected to the application server through the wireless network, and can obtain the required data in real time. [0003] However, the above-mentioned technical syst...

Claims

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Application Information

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IPC IPC(8): G06F17/30
CPCG06F16/29
Inventor 刘全海罗迪李楼冉慧敏羊楷鲍秀武
Owner 常州市测绘院