Development of a Beacon and GPS based localization and seamless navigation system
With the proliferation of mobile computing devices and wireless communication technologies, the demand for fast and accurate Location Based Services (LBSs) has been extensively spurred in these decades. When roaming outdoors, users can use GPS to obtain precise location, but indoor...
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| Other Authors: | |
| Format: | Thesis-Master by Coursework |
| Language: | English |
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Nanyang Technological University
2021
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| Online Access: | https://hdl.handle.net/10356/152346 |
| _version_ | 1811683048446492672 |
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| author | Ji, Xingyu |
| author2 | Xie Lihua |
| author_facet | Xie Lihua Ji, Xingyu |
| author_sort | Ji, Xingyu |
| collection | NTU |
| description | With the proliferation of mobile computing devices and wireless communication
technologies, the demand for fast and accurate Location Based Services (LBSs) has
been extensively spurred in these decades. When roaming outdoors, users can use GPS
to obtain precise location, but indoors, because of the lack of sight (LOS) channels,
GPS often fails for reliable locating. Therefore, IPS has been a research area of great
interests since the past two decades.
Extensive researches have been conducted in the area of indoor location. However,
most of the researches are limited to the hypothesis that the operating condition is
either outdoors or indoors, which hardly holds in reality. There exist some areas share
the partial characteristics of both outdoor and indoor environments, such as the areas
adjoining to buildings (covered corridor) or semi-open buildings (parking lots). These
areas possess few LOS channels to the satellites while the wireless signals for IPS are
not covered. Thus, utilizing unitary environment location strategy for these areas is
incapable of providing reliable location information. In the meanwhile, a precise IO
detection is fundamental for upper-layer applications to serve individual users, e.g.,
applications can leverage contextual status to dominate the status of on-board sensors
for battery saving. The IO information is also vital for a seamless navigation system.
In this dissertation, we propose a seamless navigation system based on GPS and
iBeacon. The system is capable of providing precise and fast response IO detection as
well as seamless navigation with low power consumption. IO detection is performed
with several Beacons deployed at the landmarks of semi-outdoor environment (e.g.,
covering corridors and conjunctions of buildings), such as the entrances/exits. Each
Beacon is capable of providing differentiable distance information within 6.5 meters;
thus, the Beacons are placed with sparse intensity in semi-outdoors. For outdoor
environment, the system only leveraged GPS for location service and thus other
sensors are turned off. The transition from outdoor to semi-outdoor environment is
based on the decreasing amplitude of average GPS signals; Bluetooth sensor will be
activated for semi-outdoor navigation while GPS module is turned off for battery saving.
The system is implemented on an Android mobile device and several experiments have
been conducted to evaluate the system. The experiment results have validated that the
system is capable of providing IO detection and LBS with high accuracy and the power
consumption is acceptable at the same time. |
| first_indexed | 2024-10-01T04:06:32Z |
| format | Thesis-Master by Coursework |
| id | ntu-10356/152346 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T04:06:32Z |
| publishDate | 2021 |
| publisher | Nanyang Technological University |
| record_format | dspace |
| spelling | ntu-10356/1523462023-07-04T17:34:56Z Development of a Beacon and GPS based localization and seamless navigation system Ji, Xingyu Xie Lihua School of Electrical and Electronic Engineering ELHXIE@ntu.edu.sg Engineering::Electrical and electronic engineering With the proliferation of mobile computing devices and wireless communication technologies, the demand for fast and accurate Location Based Services (LBSs) has been extensively spurred in these decades. When roaming outdoors, users can use GPS to obtain precise location, but indoors, because of the lack of sight (LOS) channels, GPS often fails for reliable locating. Therefore, IPS has been a research area of great interests since the past two decades. Extensive researches have been conducted in the area of indoor location. However, most of the researches are limited to the hypothesis that the operating condition is either outdoors or indoors, which hardly holds in reality. There exist some areas share the partial characteristics of both outdoor and indoor environments, such as the areas adjoining to buildings (covered corridor) or semi-open buildings (parking lots). These areas possess few LOS channels to the satellites while the wireless signals for IPS are not covered. Thus, utilizing unitary environment location strategy for these areas is incapable of providing reliable location information. In the meanwhile, a precise IO detection is fundamental for upper-layer applications to serve individual users, e.g., applications can leverage contextual status to dominate the status of on-board sensors for battery saving. The IO information is also vital for a seamless navigation system. In this dissertation, we propose a seamless navigation system based on GPS and iBeacon. The system is capable of providing precise and fast response IO detection as well as seamless navigation with low power consumption. IO detection is performed with several Beacons deployed at the landmarks of semi-outdoor environment (e.g., covering corridors and conjunctions of buildings), such as the entrances/exits. Each Beacon is capable of providing differentiable distance information within 6.5 meters; thus, the Beacons are placed with sparse intensity in semi-outdoors. For outdoor environment, the system only leveraged GPS for location service and thus other sensors are turned off. The transition from outdoor to semi-outdoor environment is based on the decreasing amplitude of average GPS signals; Bluetooth sensor will be activated for semi-outdoor navigation while GPS module is turned off for battery saving. The system is implemented on an Android mobile device and several experiments have been conducted to evaluate the system. The experiment results have validated that the system is capable of providing IO detection and LBS with high accuracy and the power consumption is acceptable at the same time. Master of Science (Computer Control and Automation) 2021-08-05T06:42:46Z 2021-08-05T06:42:46Z 2021 Thesis-Master by Coursework Ji, X. (2021). Development of a Beacon and GPS based localization and seamless navigation system. Master's thesis, Nanyang Technological University, Singapore. https://hdl.handle.net/10356/152346 https://hdl.handle.net/10356/152346 en D-255-20211-02876 application/pdf Nanyang Technological University |
| spellingShingle | Engineering::Electrical and electronic engineering Ji, Xingyu Development of a Beacon and GPS based localization and seamless navigation system |
| title | Development of a Beacon and GPS based localization and seamless navigation system |
| title_full | Development of a Beacon and GPS based localization and seamless navigation system |
| title_fullStr | Development of a Beacon and GPS based localization and seamless navigation system |
| title_full_unstemmed | Development of a Beacon and GPS based localization and seamless navigation system |
| title_short | Development of a Beacon and GPS based localization and seamless navigation system |
| title_sort | development of a beacon and gps based localization and seamless navigation system |
| topic | Engineering::Electrical and electronic engineering |
| url | https://hdl.handle.net/10356/152346 |
| work_keys_str_mv | AT jixingyu developmentofabeaconandgpsbasedlocalizationandseamlessnavigationsystem |