Indoor Positioning and Navigation System of Powered Wheelchair
Date Issued
2007
Date
2007
Author(s)
Hsiao, Chao-Chih
DOI
zh-TW
Abstract
This study attempts to design an indoor positioning system by 5 active 433 MHz RFID tags, and a reader in the powered wheelchair, to identify the position of the electric powered wheelchair (EPW) locally. The tags was distributed on the exits of elevator in the 2nd and 3rd floors, the outside of the doors at Labs 341, 343, 345,and 349 in the building (#2) of the Department of Electrical Engineering, National Taiwan University. The results were presented the related amplitude of the RFID signals from the 5 active tags shown a different magnitudes which can be characterized to identify the position of EPW stably. The other method attempts to enlarge the space of detection by the same 5 tags. Through the K-means clustering, the detecting space can be clustered into several adjoining regions. Therefore, this study supports the possibility of the 3-D indoor RFID positioning and navigation.
Subjects
電動輪椅
無線射頻辨識系統
定位系統
導航
訊號辨識
electric powered wheelchair
RFID
positioning system
navigation
signal identification
Type
thesis