BLOCK DIAGRAM

CHAPTER 3: METHODOLOGY (1)

DESCRIPTION

        In this project, the 12V DC is further step down to 5V DC using a voltage regulator. Voltage regulator module is used to protect PIC and other connected sensor/relay from over voltage. This is because the PIC and all other connected sensors relay all support 5V DC only. This 5V DC is a rechargeable battery. The IR sensor (Transmitter and Receiver) detect the dark line (black line color). When the IR sensor detects the black line color, the voltage measured at the sensor will be increased and when the IR sensor not detects the line, the voltage will be decreased. That means, while the IR sensor detect the line, the voltage will be increased and connected to the PIC16F877A and the PIC will be identified the sensor to move by follow the line. But, when the side of the vehicle detects another line at the side of the track, it will immediately stop moving. So, the human will push button stop at the top of the vehicle to put a load. After finish a work, the human need to push back the button to make the vehicle move as usual by follow the track. Then, the sensor will give information to the PIC before the PIC give signal to a motor driver whether to move the right or left motor by referring to the track.

OBJECTIVES:

• To show about the process of the project.
• To explain in detail about the function and a part of component that will use to make the project successfully done.