A pedestrian tracking system using group mobility information

While tracking in outdoor environments is easily achieved by GPS, indoor tracking, especially in an underground environments is not possible. One common technique for indoor tracking is to employ inertial sensors, but the main problem with inertial pedestrian tracking systems is that they accumulate...

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Bibliographic Details
Published inMILCOM 2012 - 2012 IEEE Military Communications Conference pp. 1 - 6
Main Authors Sungnam Lee, Hyojeong Shin, Hojung Cha
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.10.2012
Subjects
Accelerometers
Compass
Dead-Reckoning
Estimation
Group Mobility Information
Hidden Markov models
Inertial Measurement Unit
Sensor systems
Tracking
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Summary:While tracking in outdoor environments is easily achieved by GPS, indoor tracking, especially in an underground environments is not possible. One common technique for indoor tracking is to employ inertial sensors, but the main problem with inertial pedestrian tracking systems is that they accumulate errors and require periodic recalibration to avoid errors. In this paper, we present a pedestrian tracking system using group mobility information that several pedestrians form stable moving clusters. Group mobility information is shared and cooperated in overcoming the accumulated tracking error inherent the Inertial Measurement Unit (IMU). A prototype is implemented in smartphone and the experiment results show that the location error is reduced up to 43%, compared to traditional dead-reckoning tracking methods.
ISBN:1467317292
9781467317290
ISSN:2155-7578
2155-7586
DOI:10.1109/MILCOM.2012.6415710