internet-based spatial decision support system (sdss) with real-time wireless mobile gis by dr....

Internet-based Spatial Decision Internet-based Spatial Decision Support System (SDSS) with Support System (SDSS) with

Real-Time Wireless Mobile GISReal-Time Wireless Mobile GIS

by Dr. Ming-Hsiang (Ming) Tsou

E-mail: mtsou@mail.sdsu.eduPhone: 619-594-0205

Fax: 619-594-4938

The Department of Geography, San Diego State University

2005 ESRI International User Conference 2005 ESRI International User Conference July 28, 2005. July 28, 2005. Session: GIS in Disaster ManagementSession: GIS in Disaster Management

Why Internet MappingWhy Internet Mapping? ? Flexible Information Access / Exchange(End-Users only need a web browser)

Information Sharing and

Integration(Access multiple Internet Map Servers

at the same time– local governments,

USGS, EPA, Census Bureau, etc.)

Real-time Information Update

and Distribution Gather data from

client sides (polices, firefighters), distribute updated data from server sides (control centers)

Web-based GIS Web-based GIS (Internet GIS)(Internet GIS)

San Diego State University

InternetMap

Server

(ArcIMS)

WebServer

(map.sdsu.edu

Internet

Client (Web browser)+ Java applets

Client (Web browser)+ IMS Viewer

Client (Web browser)

RegionalDatabase(GIS)

Server Client

The Network is the ComputerThe Internet is your GIS.

Sharing Data, Information, and Sharing Data, Information, and KnowledgeKnowledge

Real Time GIS for Emergency ResponseReal Time GIS for Emergency Response

(NASA funded REASoN Project, 2004-2008) Http://geoinfo.sdsu.edu/reason

REASoN Project

San Diego Emergency Response GIS Data Portal http://geoinfo.sdsu.edu/metadataexplorer

DownloadableData

Metadata Search

Web Mapping

Metadata/Data Portal

Metadata is the key to effectively search/query GIS data across the Internet

• Mobile GIS refers to an integrated software/hardware framework for the access of geospatial data and services through mobile devices via wireline or wireless networks (Tsou, 2004).

(Notebooks, PDA, Tablet PC, Pocket PC, etc.)

WHY mobile GIS – Field work: data collection and validation

process, coupled with GPS and wireless communications.

– Real-time update / change– Global Positioning System (GPS) integration.

Mobile GISMobile GIS

Mobile GIS ArchitectureMobile GIS Architecture

Global Positioning SystemsGlobal Positioning Systems

Wireless Local Area Network (WLAN)Wireless Local Area Network (WLAN)

Wi-Fi or WiMAX TechnologyWi-Fi or WiMAX Technology

Different from cellular phone communication (CDMA, GPRS) Fast Transmission Speed, Good for GIS applications (large size of data/images)• Wi-Fi (802.11b, 11Mbps, 2.4 Ghz), Wi-Fi5 (802.11a, 54Mbps, 5GHz).

802.11g, and 802.11n (up to 200Mbps) -- MIMO (multiple input multiple output). Short distance: 300 feet.

• WiMAX (available in late 2006) 802.16d, 802.16e (Wireless Metropolitan Area Network (WMAN). 30 – 75 Mbps, 4 – 6 miles

Wireless Mobile GIS IntegrationWireless Mobile GIS IntegrationPrototype Testing (2003 at MTRP)Prototype Testing (2003 at MTRP)

(Notebook Web Server (IIS) + ArcPAD + Blue tooth GPS + Wi-Fi )

User Scenario: Environmental User Scenario: Environmental Monitoring and ManagementMonitoring and Management

Mission Trail Regional Park (short movie) Mission Trail Regional Park (short movie)

Movies shot before the 2003 Wildfire.

After the Wildfire, another test was conducted by helping park rangers to evaluate the damages of wildfire and landform changes.

(Link to the movie MTRP.wmv)

Real-time report submission and data upload (from Pocket PC to Server)

Evaluate Land Cover Change by ADAR Evaluate Land Cover Change by ADAR Images via Internet Map ServerImages via Internet Map Server

(MTRP BMX site) (MTRP BMX site)

Real-time Data Update from Pocket PC Real-time Data Update from Pocket PC (ArcPAD) to Internet Map Server (ArcIMS)(ArcPAD) to Internet Map Server (ArcIMS)

Submit new polygons (Hot-zones) from Pocket

PC to Internet Map Server (ArcIMS) via Wi-Fi

channel.

WirelessCommunication

Mobile GIS with Real-timeReal-time Tracking ServerESRI ArcIMS Tracking Server (beta-version)

Dynamically Display the location of in-field agents (park rangers, fire fighters, etc.) -- Two way communications

Watershed Management Watershed Management (City of San Diego) , 3 years(City of San Diego) , 3 years

Http://www.sdbay.sdsu.edu

Student Field Work (Boat Channel Study: HTH Biotech Website)

Student Field Work (Boat Channel Study: HTH Biotech Website)

◊ San Diego Bay Biological Survey

◊ Study◊ Diversity at Different Sites◊ Affect of Human Activity◊ Affect of Tidal Flow

◊ Appreciation◊ Scientific Field Work/Inquiry-

Based Learning

Barnacle (Boat Channel Study: HTH Biotech Website)

Flatworm (Boat Channel Study: HTH Biotech Website)

File Limpet(Boat Channel Study: HTH Biotech Website)

San Diego High Tech High San Diego High Tech High School -- biology courseSchool -- biology course

ChallengesChallenges

• Interoperability across the Mobile GIS and Internet GIS interface. (vendor-based vs. open source development).

• Cope with technology changes (Web technology changes every month). How to migrate from old technologies to new tools?

• Security Issue (Data, wireless, Internet) and

• Daily practice to ensure the usability.

San Diego State University

Future Direction? (Google-earth? NASA World Wind… GeoFusion?)3D visual tools with GPS tracking services

Web services?

Semantic Webs?

Grid computing?

Intelligent Agents?

Related Links and Related Links and ReferencesReferences

Thank You

Q & A

• Http://map.sdsu.edu • Http://map.sdsu.edu/mobilegis• Http://www.sdbay.sdsu.edu• Http://geoinfo.sdsu.edu/reason

Books & Papers (PDF available upon request)

Internet GIS (book) – (Chapter 9. mobile GIS)http://map.sdsu.edu/gisbook

Tsou, M.H. (2004). Integrated Mobile GIS and Wireless Internet Map Servers for Environmental Monitoring and Management, Cartography and Geographic Information Science. 31(3), pp. 153-165. Tsou, M.H. (2004). Integrating Web-based GIS and On-line Remote Sensing Facilities for Environmental Monitoring and Management. The Journal of Geographical Systems, No. 6: 1-20.