Transcript PRESENTATION NAME

Investigation into developing stand-alone Location
Based services (LBS)
Nkululeko Gojela
Supervisor: Dr Hannah Thinyane
Background
“…services that integrate a mobile devices
location or position with other information so
as to provide added value to the user”
Schiller and Viosard
Background
• Types of Location Based Services
• Type 1
– Those that are dependent on an aggregation
infrastructure (Central server with application logic)
• Type 2
– Those that are independent of an aggregation
infrastructure (Standalone)
• Getting location information:
1.
2.
3.
GPS based
Network Based (Cell operator)
Hybrid (Combination of 1 & 2)
Purpose of Project
• To investigate the development of LBS:
– Do not requirement aggregation
infrastructure.
– Possible methods for developing the services
– Which method offers:
• Maximum portability
• With maximum location accuracy
– How does the portability and location
information accuracy divide the types of LBS
that can be developed.
Development Approach
• Two approaches:
1. J2ME : Applications on installed on device.
– Why?
• Java is designed for platform independence
• J2ME Location API - gives applications the opportunity to use a
device's location capabilities
• In Location API the Location Provider supplies information
about the location of the devices based on criteria given.
• Criteria include – accuracy, response time.
Development Approach
2.
Java Card Techonology : Applications running on
smart cards.
– Why?
• Java is designed for platform independence
• Allows for applets written in Java to be execute on smart cards.
• Offers portability because the applets are not/less dependent
on device platform.
• But memory restrictions affect what you can or cannot do on
the card.
• Also enable acquiring of location information from sim/smart
card applet level.
• Provide JCVM, RE and Java Card API for developing Card
applets.
Investigation Approach
– Investigation approach is to develop LBS using both
methods.
• LBS will allow use to view location information
• Set landmark on the application
• Events triggered whenever currently location information
matches the landmarks.
– Evaluate the outcomes of the
• How does location information affect the type of service
(accuracy)
Progress
– Understanding the development environments
• J2ME + Support for LBS
• Java Card Technology and Gemalto Developer Suite.
– Examining the technologies support for LBS
Tools
•
•
•
J2ME Platform SDK
Gemalto Developer Suite and Simulator
Mutiple mobile device platforms – Symbian OS, Andriod, iPhone OS,
possibly Windows Mobile
Mobile Platforms
Questions?