Prototype of Cloud and Android Based Outdoor Guidance System for the Visually Impaired

• Main Authors: Lapyko, Anna, 賴安娜
• Other Authors: Lin, Bao-Shuh Paul
• Format: Others
• Language: en_US
• Published: 2013
• Online Access: http://ndltd.ncl.edu.tw/handle/77202072011094223330

碩士 === 國立交通大學 === 電機資訊國際學程 === 101 === Safe navigation in non-familiar outdoor environments is a challenging activity for the blind and vision-impaired (BVI) people. This work introduces a prototype of a cloud-based outdoor assistive navigation system (COANS) for BVI people. The main goal of the system is to provide easy street navigation and help to make outdoor walks in non-familiar environment less stressful. Hardware part from the user-side includes an android-base mobile phone and an external low-cost L1 GPS receiver to improve position accuracy. Applying the technique known as Real Time Kinematic (RTK) ameliorates the issue of the user position estimation. Interaction between the application and the user is based on voice commands (user-side) and voice notifications (system-side), together with the user-friendly “shaking” and “swiping” commands. The test scenarios for the system include traffic light status detection, zebra crossing path detection and a bench discovering within a short distance from the user.