Spinning beacons for precise indoor localization | Zendy

Ho-lin Chang | Zendy; Jr-ben Tian | Zendy; Tsung-te Lai | Zendy; Hao-Hua Chu | Zendy; ChunYing Huang | Zendy

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Spinning beacons for precise indoor localization

Author(s) -

Ho-lin Chang,

Jr-ben Tian,

Tsung-te Lai,

Hao-Hua Chu,

ChunYing Huang

Publication year - 2008

Publication title -

ntur (臺灣機構典藏)

Language(s) - English

Resource type - Conference proceedings

DOI - 10.1145/1460412.1460426

Subject(s) - beacon , spinning , orientation (vector space) , doppler effect , acoustics , computer science , metre , real time computing , computer vision , remote sensing , physics , engineering , mathematics , geology , mechanical engineering , geometry , astronomy

This work proposes the novel use of spinning beacons for precise indoor localization. The proposed "SpinLoc" (Spinning Indoor Localization) system uses "spinning" (i.e., rotating) beacons to create and detect predictable and highly distinguishable Doppler signals for sub-meter localization accuracy. The system analyzes Doppler frequency shifts of signals from spinning beacons, which are then used to calculate orientation angles to a target. By obtaining orientation angles from two or more beacons, SpinLoc can precisely locate stationary or slow-moving targets. After designing and implementing the system using MICA2 motes, its performance was tested in an indoor garage environment. The experimental results revealed a median error of 40~50 centimeters and a 90% error of 70~90 centimeters.

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