Author : Mohit Saraf, Mohd Shehzad and Neeraj Jadhav

The development of an IVR Based Intelligent Guidance Stick has been proposed in this paper. The system involves use of two different circuits embedded on a stick. The first circuit will consist of an Arduino Uno board interfaced with three ultrasonic sensors which will be used to detect obstacles and a speaker which will provide an audio output to the user accordingly regarding the direction of the incoming obstacle. It will continuously check for the obstacles in three directions and if an obstacle is found within a specified range it will notify the user about the obstacle and its direction. The second circuit will be used to detect the potholes present and will alert the user of the same using continuous beeps. It will continuously check for the potholes and once a pothole is detected the buzzer will sound continuous beeps. This circuit uses a traditional 8051 microcontroller technology and has one ultrasonic sensor interfaced with it. Once a pothole is detected by this sensor, the microcontroller will instruct the buzzer to start buzzing. The stick will also have a wheel at its base for mobility of the stick. The whole system will be powered by two 9V batteries one for each circuit respectively.

Keywords: Arduino Uno, ATmega 328, Ultrasonic sensors, Range Sensing, Obstacle Detection, IVR system, 8051 microcontroller, Blind Stick.

Article published in International Journal of Current  Engineering  and Technology, Vol.4,No.3 (June- 2014)