Foundations of Location Based Service
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Transcript of Foundations of Location Based Service
112/05/03 1
Foundations of Location Based Service
Stefan Steiniger, Moritz Neun and Alistair Edwardes
V.1.0. 2006.
Lecture Notes on LBS
112/05/03 2
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