1. ICPCA 2008 Research of architecture for digital campus LBS in Pervasive Computing Environment 1

2. Outline Introduction Motivation System architecture -- digital campus LBS Implementation Conclusions 2

3. Introduction Location-Based Services (LBS) Spatial Data Warehouse: Dataset containing features from a defined area localization and Guidance: Where is the user, where does he want to go? User Interface: How the information is delivered to the user 3

4. Introduction Geographic information system (GIS) WebGIS Integration the relative of Geographic information and database Storing, analyzing, updating and displaying geographically referenced information 4

5. Motivation Spatial information share Integration of information space and physical space Interactive relationship between human and computer. 5

6. Grid GIS data organization and access mechanism 6 provides technological support for coordinating the collection management, distribution and share of the basic geographical spatial data

7. 7

8. System architecture -- digital campus LBS 8

9. 9 real-time location, query and navigation of important locations query and navigation of important persons and real- time release of important information, etc. mobile service terminal GPS location module CPU control core module ZigBee location communication module GPRS communication module

10. Implementation 10

11. Implementation 11

12. Implementation 12 four main characteristics: 1) expandability 2) self-adaption 3) compatibility 4) validity

13. Conclusions 13 Combining middle-ware technology and web service technology. Apply grid GIS technology into digital campus LBS.