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Academic Editor:Hwa-Young Jeong
1, Information Management, National Taichung University of Science and Technology, San Min Road No. 129, Taichung 40401, Taiwan
Received 4 October 2013; Revised 19 December 2013; Accepted 2 January 2014; 8 April 2014
This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
1. Introduction
Technology has been widely adopted in education setting for achieving the goal of providing education for the future society [1, 2]. There are plenty of institutions providing abundant learning information other than schools [3]; however, visitors may get lost in the spacious places like museum or library, in which guides are required to lead the route and to explain to the visitors. In the condition of limited human resources, tour guide is impossible to individualize even if he could provide engrossing narration. Nevertheless, when people face abundant learning resources, they are not necessarily cable of determining the proper materials for themselves; they tend to get lost in it. Furthermore, from the viewpoint of educational psychology, people who lack of self-regulated abilities might tend to go astray in a spacious educational social institution [4].
Therefore, the main goal of this study is to establish one smart learning space utilizing the access point (AP) deployment to set up indoor positioning to calculate the current position of the learner and using augmented reality (AR) technology to enable users to quickly combine virtual information and physical objects. For the sake, we develop two kinds of indoor positioning algorithm, trilateration algorithm and enhanced version. Using RSSI values (i.e., a measurement of the power present in a received radio signal) measured from Wi-Fi signals, the trilateration algorithm locates a user's current position. Moreover, the enhanced trilateration algorithm further improves the accuracy with a more complicated calculation process. Equipped with this system, visitors could acquire valuable information provided by AR corresponding to the sites at anytime and anywhere in the institution. The system also records the learning process of each person with added nodes to present learning progress in order to enhance their self-regulated ability. Two main contributions should be found in this study. Low-cost indoor positioning is...