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INSUS: Indoor Navigation System Using Unity and Smartphone for User Ambulation Assistance

التفاصيل البيبلوغرافية
العنوان: INSUS: Indoor Navigation System Using Unity and Smartphone for User Ambulation Assistance
المؤلفون: Fajrianti, Evianita Dewi, Funabiki, Nobuo, Sukaridhoto, Sritrusta, Panduman, Yohanes Yohanie Fridelin, Dezheng, Kong, Shihao, Fang, Surya Pradhana, Anak Agung
المصدر: Information
بيانات النشر: MDPI
سنة النشر: 2023
المجموعة: Okayama University Scientific Achievement Repository / 岡山大学学術成果リポジトリ
مصطلحات موضوعية: indoor navigation system, INSUS, unity, QR code, smartphone, SEMAR
الوصف: Currently, outdoor navigation systems have widely been used around the world on smartphones. They rely on GPS (Global Positioning System). However, indoor navigation systems are still under development due to the complex structure of indoor environments, including multiple floors, many rooms, steps, and elevators. In this paper, we present the design and implementation of the Indoor Navigation System using Unity and Smartphone (INSUS). INSUS shows the arrow of the moving direction on the camera view based on a smartphone's augmented reality (AR) technology. To trace the user location, it utilizes the Simultaneous Localization and Mapping (SLAM) technique with a gyroscope and a camera in a smartphone to track users' movements inside a building after initializing the current location by the QR code. Unity is introduced to obtain the 3D information of the target indoor environment for Visual SLAM. The data are stored in the IoT application server called SEMAR for visualizations. We implement a prototype system of INSUS inside buildings in two universities. We found that scanning QR codes with the smartphone perpendicular in angle between 60 degrees and 100 degrees achieves the highest QR code detection accuracy. We also found that the phone's tilt angles influence the navigation success rate, with 90 degrees to 100 degrees tilt angles giving better navigation success compared to lower tilt angles. INSUS also proved to be a robust navigation system, evidenced by near identical navigation success rate results in navigation scenarios with or without disturbance. Furthermore, based on the questionnaire responses from the respondents, it was generally found that INSUS received positive feedback and there is support to improve the system.
نوع الوثيقة: article in journal/newspaper
اللغة: English
تدمد: 2078-2489
العلاقة: https://ousar.lib.okayama-u.ac.jp/files/public/6/65743/2023082111410613478/fulltext.pdfTest; https://ousar.lib.okayama-u.ac.jp/65743Test
الإتاحة: https://doi.org/10.3390/info14070359Test
https://ousar.lib.okayama-u.ac.jp/files/public/6/65743/2023082111410613478/fulltext.pdfTest
https://ousar.lib.okayama-u.ac.jp/65743Test
حقوق: © 2023 by the authors.
رقم الانضمام: edsbas.59088953
قاعدة البيانات: BASE
الوصف
تدمد:20782489