Talks and Poster Presentations (without Proceedings-Entry):

G. Retscher:
"Smartphone Positioning and Navigation in LBS";
Talk: Seminar at the UNSW Sydney, Sydney (invited); 2012-02-29.

English abstract:
Smartphones provide communication convenience for people in their daily life but also offer opportunities to collect data for scientific research and they provide location capabilities. Conventionally, for tracking and trip recording the location determination of the user relies mainly on a GPS data logger. In challenging urban environments where GNSS signals are frequently blocked the GPS data loggers may not be able to provide sufficient coverage for tracking of a user. In addition, carrying a GPS data logger may impose some additional burden to individuals. The use of smartphones has the advantage that no additional device has to be carried by the user. Most importantly, apart from the GPS receiver additional sensors such as WiFi as well as a digital compass and accelerometers are integrated into the smartphone. The integration of GPS/WiFi mobile devices, wireless communications and other positioning technologies, as well as geographic information and mapping systems are the basis for tracking applications. The accelerometers in the smartphone can be used to determine the current movement state of the user (e.g. standing, walking, or fast moving in a car or public transportation). In addition, the digital compass can provide the orientation of movement. The research studies discussed in the presentation show the feasibility of using smartphones for tracking in LBS and other navigation applications. One main objective of the presented tests is to assess the quality of the data provided by the sensors in smartphones.

Smartphone, Location-based Services, Mobile Phone Location, Geosensors

Created from the Publication Database of the Vienna University of Technology.