The number of vehicles on roads is increasing day by day. Hence the safety of passenger and driver is a huge concern for all vehicle manufacturing industries. Headlamps which most of industries use are either high beam or low beam. While driving at night, drivers use high beam which causes glare to vehicle coming from other side. Also, at sharp curves driver faces this problem which results in less visibility of road to driver coming from other side. These problems cause night blindness to driver coming from opposite direction for a shorter period. Due to this, number of accidents has increased over last decade. According to survey, it has been found that more than 30 % road accidents occur during night time. To overcome this problem, we develop an automatic head light intensity and object detection system. The project aims in designing an efficient automatic intensity control for head lights and obstacle alerting system. This system uses SR04 Ultrasonic sensor to detect the obstacle, LDR is uses to control the light intensity of vehicle and it measure the light intensity of opposite vehicle. These systems will active the buzzer; when the sensor detects the obstacle. DC motor is used to movies the vehicle. The main controlling device of the project is PIC microcontroller which is interfaced to the input and output modules and takes the necessary action upon the situation. The Microcontroller is loaded with a program written in embedded ‘C’ language to perform the task.

 

Main features of the project:

• LDR sensor based automatic head light intensity detection and control.
• SR04 Ultrasonic sensor-based obstacle detection and alerting system.
• Obstacle alerting using Buzzer.

This project provides exposure to the fallowing technologies:

1. LDR sensor.
2. Interfacing LDR sensor and microcontroller.
3. Interfacing SR04 Ultrasonic sensor and microcontroller.
4. Interfacing buzzer module and it’s working.
5. Embedded C programming for microcontroller.
6. Design of PCB.

The major building blocks of this project are:-

• Regulated power supply with voltage regulator.
• Battery power.
• LDR sensor.
• Ultrasonic sensor.
• High power LED’s with driver.
• PIC Microcontroller.
• DC motor with l293d motor driver.
• Reset button.
• Crystal Oscillator.
• Buzzer with driver.
• LED indicator.

Software’s used:

1. PIC-C compiler for Embedded C programming.
2. PIC kit 2 programmer for dumping code into Micro controller.
3. Express SCH for Circuit design.

     

     

Regulated Power Supply:    

   

       

Block diagram:    

   

     

 

 

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