A proactive approach for mobile GIS

Author

Shi, Wen-zhong ; Kwan, Kevin Kawai ; Shea, Geoffrey ; Cao, Jiannong

Author_Institution

Dept. of Land Surveying & Geo-Informatics, Hong Kong Polytech. Univ., China

Volume

2

fYear

2003

fDate

6-9 Oct. 2003

Firstpage

1000

Abstract

One of the major obstacles to the development mobile GIS is immaturity in database design. For this consideration, a new mobile data model is proposed based on a mobile view of a spatio-temporal and attribute model. A temporal database is designed in physicality for the implementation on the conceptual model. It is a proactive approach, continuously updating the related spatio-temporal and attribute data according to the real location of the subscriber and the current time. Finally, the performance of the dynamic database is evaluated for wireless GIS Web and on-line query applications. The design of this study increases the availability of GIS to mobile services by fine-tuning the existing database providing the latest accurate information to subscribers in a limited communication bandwidth; the response time is improved.

Keywords

Internet; database management systems; geographic information systems; mobile communication; mobile computing; Web application; attribute model; database design; mobile GIS; on-line query; response time; spatio-temporal model; temporal database; Bandwidth; Data models; Delay; Geographic Information Systems; Information technology; Internet; Mobile computing; Spatial databases; Spatiotemporal phenomena; Web server;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2003. VTC 2003-Fall. 2003 IEEE 58th

ISSN

1090-3038

Print_ISBN

0-7803-7954-3

Type

conf

DOI

10.1109/VETECF.2003.1285171

Filename

1285171