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Digital City geographic Spatial Framework Based on Cloud & Terminal Integration

The digital city geographic spatial framework integrates advanced technologies like cloud and terminal integration, oblique photogrammetry, 2D & 3D integration, etc., constructing authoritative, sole, universal geo-information public service platform, and a database, 2 platforms and 10 application demos covering classified information, governmental affairs and public, forming a set of standard and a management mechanism, making city capable of information sharing and publishing among governmental departments.

1.1 Construction Objective

Provides authoritative, sole, universal geo-spatial information platform for various industries in the city, advancing geo-information resource sharing and applying among departments, making geo-information functioning in governmental decision-making, emergency management, social public service, industry upgrade extension, civil life improvement, etc., advancing city urbanization process, realizing information resources sharing, providing application services based on spatial location for government, enterprises, the public.

1.2 Construction Contents

1.  The digital city geographic spatial framework project set up latest, completed basic geographic database using modern technologies like RS, GIS, computer network, etc. to fulfill the needs of governments and its departments.
2.  Through data processing like data extraction, data extension, data regrouping, and developing network service system, set the authoritative, sole geo-spatial framework data service platform in the city, providing informatization services for government and its departments.
3.  Develop application demonstration for the departments like city management, decision making, national resource, electronic governmental affairs, housing, public security, public services, etc.
4.  Set organization and supporting environment for the construction, management, maintenance and applying.

1.3 Architecture

The system includes supporting layer, data layer, service layer, system layer and application layer. The layers are mutually independent and associated. The system diagram is shown as below.
 
System Architecture   

1.4 Achievements

 

1.4.1 Standard specification

Set 15 standards including data, service, management in city geo-spatial framework specification
 

1.4.2 Hardware & software achievement

On software side: database management system, GIS software platform, backup software, anti-virus software, etc.
On hardware side: servers and Operation System, cabinet, UPS power, exchanger, disk array, fiber switch, graphic station and firewall, etc.
 

1.4.3 Data results

With the basis of current geo-information resources, update the collected data, constructed standard, multi-scale, real-time geo-information database.
On topographic map side, completed collection and database setting on vector data, collected 1:500 and 1:2,000 topographic map data, covering 180 square km.
On image side, set image database with images in 0.1m, 0.5m resolution covering 210 square km and image database covering the whole city in 0.8m and 1.4m resolution.
On DEM, completed DEM data covering 210 square km with scale in 1:2,000.
On 3D model, completed 3D oblique photogrammetry data covering 33 square km.
On address data, completed 30,000 items of address collection with scale of 1:500.
On thematic data, integrated thematic information data of departments of national resource, planning, city management, housing, etc.
 

1.4.4 Platform development results

Digital city geographic spatial framework has constructed 2 platforms, basic geographic information database management platform and geographic information public service platform, which makes the city having the ability to manage, exchange, share and publish geographic data.
Basic geographic database platform realized integrated management on quality checking, storing, sharing, etc., fulfilling the integrated management from CAD to GIS, proving results data hard copy from different content, different area, etc.
Geo-information public service platform integrates topographic data, image, data, DEM data, address name data, 3D oblique photogrammetry data, digital map data, mega data, and thematic data, realizing browsing query, statistics analysis, sharing exchange, customization, maintenance management, providing authoritative, convenient, fast geo-information exchange and sharing services.
The platform uses edge-cutting SuperMap GIS cloud & terminal integration technology to solve the problem of compatibility between 3D oblique photogrammetry data and traditional 3D modeling data, realizing 2D & 3D data loading on the same platform.
 
 
Geo-information public service platform
 

1.4.5 Demonstration results

Geospatial framework has advanced geo-information resources sharing and applying, making geo-information functioning in governmental decision-making, emergency management, social public service, industry upgrade extension, civil life improvement, etc., advancing city urbanization process, realizing information resources sharing, providing application services based on spatial location for government, enterprises, the public.
Basing on the geospatial framework, the project also developed 10 demo systems, including national land resource system, digital city management system, spatial geography and land resource system, digital real estate management system, police GIS, 3D planning and displaying system, 3D smart community displaying system, mapping projects uploading system, etc., realizing platform and application interaction.
 
 
3D planning and displaying system

1.5 Conclusion

Digital city geographic spatial framework provides unified and authoritative geo-information public service platform, advancing the construction sharing of geo-spatial information, introducing the positive mechanism for mapping results collection, update management. The project set unified standard for different departments, realizing integration and sharing of city information resources, avoiding construction repetition, also solved the problem of differences in maps and coordinates, making city informatization develops positively. 


 

 

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