CHAPTER 1
INTRODUCTION
There are many definitions of robot. It seems to be of difficulty to suggest an accurate meaning for the word robot, that there are various definitions of this word,
different according to the point of view. Some view a robot through the aspect of reprogrammability while others more concern on the manipulation of the robot, behavior,
intelligence and so on.
Generally, robot have three main parts known as processor, sensor and motor control system. If robot is replaced by human, sensor is represented eye, controller is
represented brain and actuator is represented leg.
Figure 1.0 : Robot Compare to Human
1.1 PROJECT BACKGROUND
This project proposes method to solve the problem of collision avoidance for mobile robots. The project is about mobile robot that is able to detect obstacles and avoid
them. The model based on ultrasonic sensor guided the direction, to generate collision free motion. It should be able to detect obstacles before collision occurs. It follows that, the
robot should be able to draw conclusion either turns to the left or right. This type of mobile
Human Robot
Brain Controller
Legs Actuator
Eye Sensors
robot may need to carry out missions in hazardous or populated environments. A typical application is to assist human being in indoor environments, like offices, homes and etc.
This project use PIC microcontroller to control the robot. The intelligent of the robot is implementing through PIC preprogrammed in such a why the robot is able to draw
conclusion regarding to conditions detected.
1.2 PROBLEM STATEMENT
Nowadays, obstacles avoidance robots usually make collision with an object before turn around. The collision can damage the robot or component inside. So, to make sure the
robot not damage because of collision, the ultrasonic sensor for obstacle detection can be perform.
The idea of projects based from the concept of an autonomous vehicle. It is apparent that a future of driverless cars is soon upon us. The motivation of this project is
due to the needs of the robot which is able to turn in precise, perfect and quick when it is facing obstacles.
1.3 OBJECTIVE
The main objective of this project is to build An Ultrasonic Guided Obstacle Detection Robot. In order to make this project successful, the objectives have been
declared that are:
1. To design a Ultrasonic Guided Obstacle Detection Robot. 2. To create hardware for Ultrasonic Guided Obstacle Detection Robot.
3. To implement decision-making Ultrasonic Guided Obstacle Detection Robot.
1.4 SCOPE
The scope of this project is to build a robot structure that will function properly according to the objective. This project uses ultrasonic sensor as its sensor. The robot uses
a microcontroller for processing the sensor readings and responds by controlling the motors. Lastly, movement direction algorithm should be developed to make sure the
product well function as stated in the objective.
1.5 SUMMARY
