Abstract
This paper deals with navigation of mobile device in outdoor and indoor environment by only navigation system or application. In the paper, the navigation system is proposed in the light of seamless navigation service. Main parts of the system from positioning point of view are based on GPS and WifiLOC system. WifiLOC is an indoor positioning system based on Wi-Fi technology. The proposal of the system will be described in detail. The system is implemented at the University of Zilina as a pilot, noncommercial project; therefore it is called University Mobile Navigation System (UMNS). The navigation system can be characterized as real-time system, that is, the system operations cannot be significantly delayed. Since delay of the system depends significantly on communication platform used for map information downloading or communication with the localization server. We decided to investigate an impact of the used communication platform on the time needs for some of the functions implemented in navigation system. Measurements were performed in the real-world application. Next experiment is focused on testing of the accuracy of used indoor positioning system. Outdoor positioning accuracy is not tested because GPS is utilized in outdoor, and this system was already exhaustively investigated.
Highlights
In past few years, high number of navigation systems for mobile devices was successfully developed
It can be seen that mean time needed for the download of the map using Wi-Fi technology as communication platform, was almost the same compared to UMTS/HSPA
The system can provide a navigation service in the hybrid environment where mobile device has to be localised in outdoor in indoor
Summary
High number of navigation systems for mobile devices was successfully developed Most of these systems can be used in outdoor environment, where position of the mobile device is estimated using satellite systems like GPS (Global Positioning System) or GLONASS (Global Navigation Satellite System). The largest number of indoor navigation systems is based on the Wi-Fi technology and use fingerprinting positioning to estimate position of mobile device [10]. We will propose navigation system for mobile device, which can be used in both indoor and outdoor environment. Impact of the used communication technology on the communication time, together with localization accuracy in the indoor environment was investigated in real-world experiments For this purpose, proposed navigation system was implemented at the campus of the University of Zilina.
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