A Hybrid Marker-Based Indoor Positioning System for Pedestrian Tracking in Subway Stations
The use of smartphones for accurate navigation in underground spaces, such as subway stations, poses several challenges. This is because it is difficult to obtain a sure estimate of user location due to the radio signal interference caused by the entry and exit of trains, the infrastructure of the s...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-10-01
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| Series: | Applied Sciences |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2076-3417/10/21/7421 |
| _version_ | 1797550112419872768 |
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| author | Gunwoo Lee Hyun Kim |
| author_facet | Gunwoo Lee Hyun Kim |
| author_sort | Gunwoo Lee |
| collection | DOAJ |
| description | The use of smartphones for accurate navigation in underground spaces, such as subway stations, poses several challenges. This is because it is difficult to obtain a sure estimate of user location due to the radio signal interference caused by the entry and exit of trains, the infrastructure of the subway station installation, and changes in the internal facility environment. This study uses quick response markers and augmented reality to solve these difficulties using an error correction method. Specifically, a hybrid marker-based indoor positioning system (HMIPS) which provides accurate and efficient user-tracking results is proposed. The HMIPS performs hybrid localization by using marker images as well as inertial measurement unit data from smartphones. It utilizes the Viterbi tracking algorithm to solve the problem of tracking accuracy degradation that may occur when inertial sensors are used by adopting a sensor error correction technique. In addition, as an integrated system, the HMIPS provides a tool to easily carry out all the steps necessary for positioning. The results of experiments conducted in a subway station environment confirm that the HMIPS provides accurate and practical navigation services. The proposed system is expected to be useful for indoor navigation, even in poor indoor positioning environments. |
| first_indexed | 2024-03-10T15:24:52Z |
| format | Article |
| id | doaj.art-ac1ba5ed6f4442749eed2588ef29d0ee |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T15:24:52Z |
| publishDate | 2020-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-ac1ba5ed6f4442749eed2588ef29d0ee2023-11-20T18:11:36ZengMDPI AGApplied Sciences2076-34172020-10-011021742110.3390/app10217421A Hybrid Marker-Based Indoor Positioning System for Pedestrian Tracking in Subway StationsGunwoo Lee0Hyun Kim1Department of Convergence of Vehicles, People and Advanced ICT, Korea National University of Transportation, Chungju 27469, KoreaDepartment of Convergence of Vehicles, People and Advanced ICT, Korea National University of Transportation, Chungju 27469, KoreaThe use of smartphones for accurate navigation in underground spaces, such as subway stations, poses several challenges. This is because it is difficult to obtain a sure estimate of user location due to the radio signal interference caused by the entry and exit of trains, the infrastructure of the subway station installation, and changes in the internal facility environment. This study uses quick response markers and augmented reality to solve these difficulties using an error correction method. Specifically, a hybrid marker-based indoor positioning system (HMIPS) which provides accurate and efficient user-tracking results is proposed. The HMIPS performs hybrid localization by using marker images as well as inertial measurement unit data from smartphones. It utilizes the Viterbi tracking algorithm to solve the problem of tracking accuracy degradation that may occur when inertial sensors are used by adopting a sensor error correction technique. In addition, as an integrated system, the HMIPS provides a tool to easily carry out all the steps necessary for positioning. The results of experiments conducted in a subway station environment confirm that the HMIPS provides accurate and practical navigation services. The proposed system is expected to be useful for indoor navigation, even in poor indoor positioning environments.https://www.mdpi.com/2076-3417/10/21/7421indoor localizationpedestrian trackingmarkeraugmented reality |
| spellingShingle | Gunwoo Lee Hyun Kim A Hybrid Marker-Based Indoor Positioning System for Pedestrian Tracking in Subway Stations Applied Sciences indoor localization pedestrian tracking marker augmented reality |
| title | A Hybrid Marker-Based Indoor Positioning System for Pedestrian Tracking in Subway Stations |
| title_full | A Hybrid Marker-Based Indoor Positioning System for Pedestrian Tracking in Subway Stations |
| title_fullStr | A Hybrid Marker-Based Indoor Positioning System for Pedestrian Tracking in Subway Stations |
| title_full_unstemmed | A Hybrid Marker-Based Indoor Positioning System for Pedestrian Tracking in Subway Stations |
| title_short | A Hybrid Marker-Based Indoor Positioning System for Pedestrian Tracking in Subway Stations |
| title_sort | hybrid marker based indoor positioning system for pedestrian tracking in subway stations |
| topic | indoor localization pedestrian tracking marker augmented reality |
| url | https://www.mdpi.com/2076-3417/10/21/7421 |
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