Abstract
In this paper, we describe about a developed navigation system that supports the independent walking of the visually impaired in the indoor space. This system is composed of colored navigation line, and an intelligent white cane and an acceleration sensor. The white cane has a color sensor. This cane senses the target colored navigation line by a color sensor. When a color sensor finds the target line, the white cane informs a user that he/she is on the navigation line by vibration. This system cannot obtain user's direction. Therefore, this cane cannot inform direction error to the destination. So, we use an acceleration sensor to detect user's direction. Five normal subjects were tested with our new system.
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