Multisensor strategies to support blind people : A Clear- path indicator

In this project of “Multisensor Strategies to Support Blind People: A Clear-Path Indicator” we propose a system which can detect obstacles for the blind people. In this new system we increase the range of the operating device to about 40 to 240cm which is possible only through obstacle Sensors.  Here We are using ultrasonic sensor for detecting the obstacle. Ultrasonic Receiver  is placed in the spectacle. And the transmitter placed in the walking stick. When the obstacle detect the receiver receives the signal from the transmitter. And indicate by voice. Two sensors are placed in the right and left side of the stick. For any obstacle detected we warn the person through Voice Board which gives warning for left and right side.