Automated Stair Climbing Robot (P-0169) (MFN 2991)

Abstract

ABSTRACT This project is about building an automated robot which will find its track on its own, and will also sense the stairs and climb it. It will be able to overcome any obstacle that comes in its way. Nowadays engineers are trying to solve daily routine problems with the concept of engineering, and making the lives of people easier and easier. The concept of robots are getting more and more popular these days, as they prove more efficient than humans. Today robots are also used for fun and games, and numbers of tournaments are also arranged on the games based on robotics. So it’s a machine which provides work, knowledge and entertainment as well. In this project ultrasonic sensors are used to detect the wall and stairs, these sensors are used because of their high range of sensing and more reliability over IR sensors. In order to climb the stairs mechanical arms are attached which rotate with the help of stepper motors. The conveyer belts are attached to it instead of tires for more grip and resistance to any kind of surface; these tires are controlled with a DC motor attached with them. Another conveyer is used at the bottom of the UGV which helps it to overcome any small size of obstacle which can’t be detected through an ultrasonic sensor; this belt is also operated with a DC motor. When the UGV senses the wall in its way its shifts itself to 90o, this shift is handled through the clockwise and anti-clockwise rotation of side conveyer belts, this normally is done with the change of the polarity of the motors connected through the batteries, this mechanism is handled through a H bridge relay connected in the circuit.