MICROCONTROLLER BASED AUTOMATIC VEHICLE CONTROL

Presentation on MICROCONTROLLER BASED AUTOMATIC VEHICLE CONTROL

INTRODUCTION

1. This paper proposes novel control architecture for automatic vehicle driving in a dynamic and uncertain traffic environment.
2. We need to make such a circuit which can continuously detect obstacle around the vehicle and avoid them from collision.

OBJECTIVES

1. To detect existence of any obstacle in front of the vehicle by infrared sensors.
2. Design a vehicle control circuit which can make primary decision before collision.
3. Controlling the vehicle with the front two wheels by two individual dc motor according to the position of obstacle or any vehicle.

CIRCUIT DIAGRAM


Transmitter Circuit

Receiver Circuit
BLOCK DIAGRAM


METHODOLOGY

1. A 56 kHz signal is generated by the microcontroller program.
2. The sensors are built with IR LED which runs at a speed of 56 kHz.
3. If infrared light from the LED is reflected by an obstacle the IR receiver senses this.
4. Output from this receiver is the input of the 555 timer & its output is fed to the motor winding which helps to avoid collision.

RESEARCH PLAN

IR Transmitter
IR Receiver (TSOP1356)
Microcontroller (ATmega32)
DC Motor
IR TRANSMITTER

1. The Transmitter is built with infrared LED which runs at a speed of 56 kHz.
2. When the 56 kHz infrared light from the LED is reflected by an object, the receiver modules will be triggered.
3. After receiving the signal from the IR Receiver obstacle detection is done.

IR RECEIVER

The TSOP1356 is miniaturized receivers for infrared remote control systems which are designed as IR filter, where the output signal can directly be decoded by a microcontroller.
The receivers are used to pick up the 56 kHz IR signal from the IR LED which is reflected by the objects close to the vehicle.

MICROCONTROLLER (ATmega32)

1. This microcontroller is a very basic & cheap 40 pin microcontroller.
2. It has 32 digital inputs & out put ports, of which just 7 is used in our project work.
3. Here 56 kHz signal is generated by the microcontroller program.
4. In this project pin number 3 i.e PB2 act as output port, pin number 10 as Vcc supply and pin number 12 &13 as clock input.
5. Crystal oscillator is used to generate clock.

PIN CONFIGURATION OF ATmega32



DC MOTOR

1. We mainly used DC motors for the mechanical movements of the rear wheels.
2. With its rated voltage (5.9 volt) it rotates with maximum speed (2700 RPM).
3. By changing the polarity of the motor we can change the direction of rotation of the Dc Motors.
4. The speed of motor is directly proportional to the DC voltage applied across its terminals.

IMPLEMENTED VIEW


Submitted by Nusrat Jahan and Kanis Fatima