Abstract— Personal positioning system needs portable,
flexible, and inexpensive sensor. Nowadays, most of
smartphones in the market have been equipped with
accelerometer and magnetometer to support some basic
features. Utilizing these sensors as a positioning system
is an interesting proposition because it doesn’t depend
on outside infrastructures and can be widely used by
many people with their smartphone.
In this study, accelerometer and magnetometer sensor
are used to estimate pedestrian positions based on dead
reckoning method. Dead reckoning is a positioning
method where subsequent position is estimated by
adding displacement to the previous position. Moreover,
our system is not only utilizing smartphone as an input
sensor, but also implementing PDR (Pedestrian Dead
Reckoning) in real-time mode in the smartphone that
has limited resources.
Our experiment was performed with 30 test subjects,
walking in 3 tracks with distances of 51.54m, 77.79m,
and 82.67m respectively. The result shows that the
system was able to estimate user position with average
error less than 4.4% of total distance.
Keywords— accelerometer, magnetometer, pedestrian
dead reckoning, sensor-based positioning system,
smartphone