Patent ID: 8907806

Claim:
A road guide apparatus for a visually impaired person which comprises a road sensing apparatus comprising a handle and wheels attached to a main body of the road sensing apparatus, a handle rod fixed at the main body via a hinge, and a control unit installed within the main body and connected to a yellow color sensing unit and a tag sensing unit, and the yellow color sensing unit senses the yellow color of a Braille block or a yellow line and transmits a signal to the control unit, and the tag sensing unit senses a signal of the RFID tag installed on the road and transmits the signal to the control unit, and the control unit comprises a central processing unit for processing signals, and an audio signal output unit for transmitting information to a Bluetooth module or an earphone so as to be recognized by the visually impaired person, wherein the yellow color sensing unit 40 is installed with a color detecting sensor to detect the yellow line in a width that is wider than the width of the Braille block 2 , and is installed with a front detecting sensor 41 , a left detecting sensor 42 and a right detecting sensor 43 in the front and left and right sides of the main body, respectively, and the front detecting sensor and the left and right detecting sensors 42 and 43 are connected to a calculator 44 , which is connected to the central processing unit 51 through an A/D converter 52 .