NDLI: Design and analysis of an infrared range sensor system for floor-state estimation

Content Provider	Springer Nature Link
Author	Lee, Minyoung Lee, Sooyong
Copyright Year	2011
Abstract	Most blind and vision-impaired people use a white cane or a guide dog to aid their walking. The conventional white cane helps the user to perceive the environment simply by identifying the presence of nearby obstacles. In the present study, three infrared range sensors were used to identify the floor state. The sensor system, affixed to the user’s belt, does not require swinging motion or any other movement by the user. The three sensors are configured radially, and the design parameters are selected based on the sensor characteristics. The main difference from the conventional range sensor system for the blind is that the infrared range sensor system identifies three discrete states (even surface, ascending stair, descending stair). The condition for the state transition was derived from a sensor system model. Additionally, the effects of sensor system movement were verified by covariance analysis.
Starting Page	1043
Ending Page	1050
Page Count	8
File Format	PDF
ISSN	1738494X
Journal	Journal of Mechanical Science and Technology
Volume Number	25
Issue Number	4
e-ISSN	19763824
Language	English
Publisher	Korean Society of Mechanical Engineers
Publisher Date	2011-06-18
Publisher Place	Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Covariance analysis Floor sensing Range sensor State estimation Mechanical Engineering Industrial and Production Engineering Vibration, Dynamical Systems, Control
Content Type	Text
Resource Type	Article
Subject	Mechanics of Materials Mechanical Engineering

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