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    A Novel Approach for Indoor Localization Using Human Gait Analysis with Gyroscopic Data

    5892.pdf (334.3Kb)
    Access Status
    Open access
    Authors
    Abhayasinghe, Nimsiri
    Murray, Iain
    Date
    2012
    Type
    Conference Paper
    
    Metadata
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    Citation
    Abhayasinghe, Nimsiri and Murray, Iain. 2012. A Novel Approach for Indoor Localization Using Human Gait Analysis with Gyroscopic Data, in Li, B. and Gallagher, T. (ed), International Conference on Indoor Positioning and Indoor Navigation, Nov 13-15 2012. Sydney: School of Surveying and Geospatial Engineering.
    Source Title
    Proceedings of the 3rd International Conference on Indoor Positioning and Indoor Navigation (IPIN2012)
    Source Conference
    2012 International Conference on Indoor Positioning and Indoor Navigation
    ISBN
    978-0-646-57851-4
    URI
    http://hdl.handle.net/20.500.11937/5912
    Collection
    • Curtin Research Publications
    Abstract

    Way finding is one of the main difficulties that vision impaired people face, especially in indoor environments. Although Global Positioning System (GPS) based navigation is possible outdoors, the accuracy of GPS is not sufficient for indoor navigation and way finding. Most of the existing indoor localization and path finding techniques depend on additional infrastructure deployed in the environment. This paper proposes a novel technique for indoor localization based on human gait using single-point sensors embedded in mobile devices. It involves inertial sensors and other sensors such as magnetometer, generally embedded into the mobile devices. Progress made from data collection indicates that there is a better correlation of gyroscopic data than acceleration data to the gait of the person. Data was collected in different environments with the involvement of multiple male and female volunteers with no vision impairment or motor disability. The two carrying positions considered in this experiment were in the hip-pocket (pocket of the trouser) and clipped into the belt (hip). Various positioning experiments determined that a possible optimal location for the data gathering device was in the subject’s hip-pocket as compared to placement on the belt (hip region) as the movement of the thigh can be tracked when the device is placed in this position. It was also observed that the gyroscopic data can be used to identify different activities, such as walking on flat land, climbing up and down stairs and walking on inclined planes. Although the amplitude of the signal is small at the beginning and the end of the travel, the gyroscopic signal clearly identifies the step events. It is concluded that gyroscopic data gives promising results in indoor localization using gait analysis when the device is placed in the hip-pocket.

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