G05 GNSS++: Emerging Technologies and Applications

IAG (Geodesy)



25-Jun-2015, 15:00 - 16:30


 
Abstract content:

Evaluating smartphone navigation sensors performance for driving event and maneuver reconstruction

In recent years, the continuously increasing capabilities and the decrescent selling prices of contemporary smartphones and mobile devices have made them ideal candidates for the collection of vehicle navigation data for various purposes. Their use is particularly prominent in the scene of Intelligent Transportation System (ITS) applications, the development of road inventory tools as well as for advanced research in transportation studies. However, depending on the scope of their use, the quality requirements (accuracy, availability, continuity, etc.) of a computed navigation solution can vary dramatically ranging from very loose (tens of meters) for comfort to more stringent (meter) standards for monitoring and safety-critical applications.

This article attempts a performance characterization of two contemporary smartphones (iPhone 5s, HTC One S) for ITS applications that call for high positioning accuracies, such as driver assistance systems. Specifically, it evaluates their ability to reconstruct a number of specific driving (e.g. braking, accelerating) and maneuvering (e.g. turns, U-turns, zigzags) events collected using a running vehicle at varying speeds. Test data include GNSS positions, tri-axial accelerations and gyroscope measurements. Data processing involves the computation of a reference trajectory using a tactical-grade integrated GNSS/INS system. Data analysis is based on cross-comparisons of the vehicle navigation solution (position, velocity and attitude) and its error estimates obtained using the smartphones against the reference trajectory.

Research supported by the Action: ARISTEIA-II (Action’s Beneficiary: General Secretariat for Research and Technology), co-financed by the European Union (European Social Fund – ESF) and Greek national funds.

 
Author(s):
V. Gikas1, C. Antoniou1, C. Danezis2, T. Mpimis1, H. Perakis1, V. Papathanasopoulou1, I. Markou1.
1National Technical University of Athens, School of Rural and Surveying Engineering, Athens, Greece.
2Cyprus University of Technology, Department of Civil Engineering and Geomatics, Lemesos, Cyprus.

 

Keywords:
smartphone     GNSS     intelligent transportation systems     accuracy     maneuver