Development of Location Based Emergency Services

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Development of Location Based Emergency Services

• Presented by
• FTMK GIS Group

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Introduction

• The recent convergence of Internet, wireless
  communications, mobile positioning and geographic
  information systems (GIS) leads to a new class of
  location based applications and services.
• LBS are services accessibility with mobile device
  through the mobile network and utilizing the
  ability to make use of the location of terminals.

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Problem Defined

• ? The main problem is different PDAs with the
  different OS is not compatible with the current
  system.
• There are some different Web mapping/LBS
  software packages or solution provided by
  different GIS vendor. E.g. ArcIMS ArcPad,
  MapInfo MapXtream etc..(the propritery LBS
  application are limited application
  levellimited their own corporate network and
  developing language)
• ?hardware (PDAs) constrains such as low processor
  speed, small memory space and wireless networks
  constrains which is network congestion makes
  harder to get connected and the physical
  obstacles between terminal and base station
  brings to frequent connection loststatus.
• ? A small display window limits the extent and
  amount of detail that can be represent in a
  single field of view. Limited display-
  geographical images can be hardly slowed.

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Objective

• To develop a prototype of location-based
  emergency online information service targeting
  patients and the public in general (with
  different content for different user roles).
• To develop a multi platform or interoperable GIS
  based location information enquiry system
  software.
• To allow system work in all available PDAs
  technologies on all OS.

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Future LBS Expectation
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Project Significant

• To access geospatial data and location based
  services operated in any type of operating system
  in different PDAs.

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Why XML?

• The XML is the best way to define standards for
  modelling, transport, storage cartographic data
  and its representation.
• XML is used to improve interoperability.
  Interoperability means what a client can request
  a distributed data, stored in different formats.

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SVG

• The W3C standard format for vectorial image is
  the Scalable Vector Graphics (SVG).
• SVG is a language for describing two-dimensional
  graphics and graphical applications in XML.
• It works directly within the Web browser
  requires a SVG plug-in (free from Adobe or other
  vendors).

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System Implementation

• Hardware
• Notebooks (Web Server)
• PDA (Clients Wi-Fi compact flash card)
• GPS ( build in for Pocket PC or with serial
  cables)
• Wireless Access Point Wifi

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• Software
• Server-side
• Apache web server
• PHP - based compliant web map server is set up in
  my laptop as localhost server.
• MySQL - database
• phpMyAdmin-used to manager the database.
• PHPMyWMS -is an open source based WMS compliant
  web map server, using PHP technology.
• Client-side
• IE / Opera browser
• Java

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Architecture
GPS Receiver
Coordinate translate
Internet (Web server http// )
Generate SVG Map

• Request services
• Position information

Shape file
GML
PDA ( Pocket PC Palm OS ) (User Interface)

• Request POI (hospital)
• Position information

• Response POI (hospital)

POI Database

• Response services
• SVG Map POI shortest path

PDA ( Pocket PC Palm OS ) (SVG Map Viewer)
Client
Server
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Data Conversion
GML (XML)
SVG
ESRI Shape file
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Concluding Remarks

• It is difficult to implement rich and complicated
  functions on those mobile terminals as
  implemented on PC, but XML is the best solution
  for this research because it can be presented in
  the different ways for different needs on
  different platform. In order to be independent
  of the Operating System of the mobile devices,
  Java will be use as a programming language.
• In addition, more important outcome discussed in
  this research is that integrated GIS services can
  be supplied to different type of PDA and its
  operating system in real-time basis.

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THANK YOU