Mobile GIS
Khánh Lê
Nov 15, 2008

Things to ponder
Thing in
cyberspace that
you want it get
more and more
real?
Thing in real life
that you hate the
most but can't
live without?
2

Answers
Map – you want it to be more real
Mobile – you hate but can't live without
So what if they combine together? Let's
see how.
3

What is GIS?
4

What is GIS?
GIS = Geographic Information System
Links databases and maps
Manages information about places
5

What is GIS?
Helps answer questions such as:
Where is it?
What else is nearby?
Where is the highest concentration of ‘X’?
Where can I find things with characteristic ‘Y’?
Where is the closest ‘Z’ to my location?
6

GIS as infrastructure
Mobile GIS
PC, PDA
Phone
Desktop GIS
qGIS
uDig
ArcView Network
Virtual Globes
Google Earth
Virtual Earth
Server GIS ArcGIS Explorer
GRASS,
GeoServer,
ArcGIS Server
Geodatabases Files XML
DBMS
7

Open GIS
GIS is moving from Desktop system to Distributed
system
→ OpenGIS concept → Where 2.0
Open Geospatial Consortium (OGC)
http://www.opengeospatial.org
Develop specifications to increase the
interoperability of geospatial data and
geoprocessing software components 8

OpenGIS in Vietnam
CIREN GIS - Information Centre of Natural Resources and
Environment of VietNam
9
http://tinyurl.com/cirengis

Advantages of OpenGIS
Cost cutting
Platform independent
Comply with OGC standards
which were accepted by wide-
range of governments,
organizations, companies
Reuse existing resources of data
Expandability, easy customization
and integration
Solve integration, interoperability
issue of GIS systems in the
real world
10

What is mobile?
Mobile is the ability to be on the move.
Mobile features:
Ubiquity (primary advantage)
Reachability
Localization
Personalization
Dissemination
11

The wand
Physical Virtual
12

What is LBS?
LBS = Location-based Services
“A wireless-IP service that uses
geographic information to serve a mobile
user. Any application service that
exploits the position of a mobile
terminal.” [OGC, 2005]
13

What is LBS?
LBS as an intersection of three
technologies
GIS/Spatial
Database
Web Mobile
GIS GIS
LBS
Mobile
Internet ICT*/mobile
Internet devices
14
ICT* - Information and Telecommunication Technologies

LBS usage
15

LBS methods
16

Mobile GIS components
17

Challenge?
Mobile device constraint
LBS is still not a mass market technology
Very little GPS enabled phone
Difficult to access to other technologies (CellId,…)
User generated content needs critical mass to be
interesting
It’s not easy to create content on mobile
Device fragmentation
Data prices
Privacy
etc. 18

What is Java ME?
Java ME =
Java Micro Edition
It just means Java
for small devices
Borned in 1999
Java ME is not
A specific set of software
A specific set of APIs
Java ME is divided in configurations and profiles
These provide specific information for a
group of related devices 19

Why Java ME?
● Yahoo! Go chose Java ME
● Gmail Mobile, Google Maps Mobile
chose Java ME
● ..and Microsoft chose Java ME for
Windows Live Mobile
20

JVNMobileGIS
A cross-platform mobile
map viewer developed
with Java ME technology.
Support fetching map
data from remote server
to view on mobile device.
Follow OGC (Open
Geospatial Consortium -
http://www.opengeospati
al.org/) and JCP (The
Java Community Process
- http://jcp.org/)
specifications.
21

Live Demo
22

Join JVNMobileGIS
http://tinyurl.com/jvnmobilegis
23

Questions
24

Thanks!
khanh [.] lnq [at] gmail [.] com
http://blog.khanhlnq.com
25

References
An introduction to GIS
ESRI Education Program
GIS For Location Based Services
Shashika Biyanwila
Using J2ME to Deliver Spatial Information to Mobile
Clients
JavaOne - ESRI
Location is relative
Yulop
Mobile Internet and LBS: Now and Future
Mobile Monday Amsterdam
26