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Foundations of Location Based Service

Stefan Steiniger, Moritz Neun and Alistair Edwardes

V.1.0. 2006.

Lecture Notes on LBS

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Outline

• What are Location Based Service• How are LBS’s useful• What’s special about it• How does it work

What are Location Based Service- Define

• A wireless-IP service that uses geographic information to serve a mobile user. Any application service that exploits the position of a mobile terminal

What are Location Based Service- LBS Component

What are Location Based Service- Push and Pull service

• Pull service– Functional services– Information services

• Push service

How are LBS’s useful

• Where am I?• Where are my friends?• What here around me?

How are LBS’s useful- User Actions

How are LBS’s useful- Example

How are LBS’s useful- Emergency Services

How are LBS’s useful- Navigation Services

• Based on mobile user• Need for directions

How are LBS’s useful- Information Services

• Based on device location• Time specificity• User behavior

How are LBS’s useful- Other Services

• Tracking and Management service• Billing Services• Augmented reality (Outlook)

What’s special about it

What’s special about it- Context

What’s special about it- Context

What’s special about it- Adaption

• Information level• Technology level• User interface level• Presentation level

What’s special about it- Adaption to user preferences

• They adapted the information content according the following– user’s personal

preferences– their current location

What’s special about it- Adaption to seasons of a year and

to user age• Purpose of use to adapt the content and

presentation of maps• Contexts of the user• Time of year

What’s special about it- Adaption to location and social context

• Social context• location

What’s special about it- Adaption to system context

• Use system context to adapt the content and presentation of information

How does it work

How does it work- Device

• Single purpose devices• Multi purpose devices

How does it work- Limits

• Small computing • Battery power• Small displays• Weather influences

How does it work- Wireless mobile networks