Pedestrian navigation systems in indoor/outdoor environments (NAVIO)
Pedestrians have often ways in unfamiliar urban environments or in complex buildings. In these cases they need guidance to reach their targets. The goal of location-based mobile services is to provide such guidance on demand (anywhere, anytime), individually tailored to the actual information needs, and presented in preferred forms. This project is focusing on the information content and usability aspect of location-based services, i.e., on the user¿s task at hand, and the necessary support for his or her route decisions. Specifying a task ontology will yield context-dependent activities, conceptualizations and references to directions from the user¿s perspective. These specifications will (1) require to integrate appropriate sensor data when and where needed, (2) propose criteria and models of routes, fitting to partly conflicting interests and goals, and (3) allow to select appropriate communication methods in terms of various multimedia cartography forms. These three work packages are sufficiently disjoint, but complete each other to a whole. The overall research hypothesis is that requirements of pedestrians for a navigation service can be met by formal specifications and an integration of current technology. The hypothesis will be investigated in three directions: integrated positioning, multi-criteria route planning, and multimedia route communication. To test and demonstrate the formal models this project takes a use case scenario - guiding visitors to institutes of the Vienna University of Technology. At the end there shall be a prototypical implementation of the formal models that guides pedestrians who are unfamiliar with the place through the urban environment of the university and the buildings of the university to specific institutes. The use case is easily adaptable to many real services, like guidance to the local authorities of a city, or to specific flights in an airport. Navigation services increase the mobility of the citizen, improve the quality of mobility of tourists and travellers, and offer new business fields for spatial information. However, such existing services suffer from user-friendlyness and reliability. The drawbacks of existing services are due to many reasons, among them the lack of ubiquitious positioning methods, the lack of appropriate data and data integration methods, and the lack of route communication with low cognitive workload. We will compare and evaluate our models with available pedestrian navigation services to prove our hypothesis.
- Retscher, Günther - Sub project manager
- Andreas Frank
- Fonds zur Förderung der wissenschaftlichen Forschung (FWF)
- Institut für Geodäsie und Geophysik