A robust dead-reckoning pedestrian tracking system with low cost sensors

The emergence of personal mobile device with low cost sensors, such as accelerometer and digital compass, has made dead-reckoning (DR) an attractive choice for indoor pedestrian tracking. In this paper, we propose a robust DR pedestrian tracking system on top of such commercially accessible sensor s...

Full description

Saved in:
Bibliographic Details
Main Authors: Yunye Jin, Hong-Song Toh, Wee-Seng Soh, Wai-Choong Wong
Format: Conference Proceeding
Language:English
Subjects:
Acceleration
Accelerometers
dead-reckoning
location estimation
maximum a posteriori
Mobile handsets
Robust pedestrian tracking
Robustness
Sensor systems
Tracking
Citations: Items that cite this one
Online Access:Request full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The emergence of personal mobile device with low cost sensors, such as accelerometer and digital compass, has made dead-reckoning (DR) an attractive choice for indoor pedestrian tracking. In this paper, we propose a robust DR pedestrian tracking system on top of such commercially accessible sensor sets capable of DR. The proposed method exploits the fact that, multiple DR systems, carried by the same pedestrian, have stable relative displacements with respect to the center of motion, and therefore to each other. We first formulate the robust tracking task as a generalized maximum a posteriori sensor fusion problem, and then we narrow it to a simple computation procedure with certain assumptions. A prototype is implemented and evaluated with a benchmark system that collects ground truth efficiently and accurately. In a practical indoor testbed, the proposed scheme has exhibited robust tracking performance, with reduction in average tracking error up to 73.7%, compared to traditional DR tracking methods.
DOI:10.1109/PERCOM.2011.5767590