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Open AccessArticle

ARBIN: Augmented Reality Based Indoor Navigation System

1
Department of Computer Science and Information Engineering, National Yunlin University of Science and Technology, Yunlin 64002, Taiwan
2
National Taiwan University Hospital YunLin Branch, Yunlin 640203, Taiwan
*
Author to whom correspondence should be addressed.
Sensors 2020, 20(20), 5890; https://doi.org/10.3390/s20205890
Received: 27 August 2020 / Revised: 25 September 2020 / Accepted: 12 October 2020 / Published: 17 October 2020
(This article belongs to the Special Issue Indoor Positioning and Navigation)
Due to the popularity of indoor positioning technology, indoor navigation applications have been deployed in large buildings, such as hospitals, airports, and train stations, to guide visitors to their destinations. A commonly-used user interface, shown on smartphones, is a 2D floor map with a route to the destination. The navigation instructions, such as turn left, turn right, and go straight, pop up on the screen when users come to an intersection. However, owing to the restrictions of a 2D navigation map, users may face mental pressure and get confused while they are making a connection between the real environment and the 2D navigation map before moving forward. For this reason, we developed ARBIN, an augmented reality-based navigation system, which posts navigation instructions on the screen of real-world environments for ease of use. Thus, there is no need for users to make a connection between the navigation instructions and the real-world environment. In order to evaluate the applicability of ARBIN, a series of experiments were conducted in the outpatient area of the National Taiwan University Hospital YunLin Branch, which is nearly 1800 m2, with 35 destinations and points of interests, such as a cardiovascular clinic, x-ray examination room, pharmacy, and so on. Four different types of smartphone were adopted for evaluation. Our results show that ARBIN can achieve 3 to 5 m accuracy, and provide users with correct instructions on their way to the destinations. ARBIN proved to be a practical solution for indoor navigation, especially for large buildings. View Full-Text
Keywords: augmented reality; Bluetooth; indoor positioning system; indoor navigation system; smart hospital augmented reality; Bluetooth; indoor positioning system; indoor navigation system; smart hospital
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Huang, B.-C.; Hsu, J.; Chu, E. .-H.; Wu, H.-M. ARBIN: Augmented Reality Based Indoor Navigation System. Sensors 2020, 20, 5890.

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