Road traffic accidents are a significant cause of injuries and fatalities worldwide. To mitigate these risks, this project proposes a Car Accident Prevention System (CAPS) utilizing Arduino Uno microcontroller. The system aims to enhance road safety by detecting and preventing potential collisions.   CAPS integrates various sensors such as ultrasonic sensors, eyeblink sensor, and alcohol sensors. First alcohol sensor detects the concentration of alcohol and if it is found below the threshold the engine can be started, and the vehicle is now ready to drive. The Arduino Uno processes this data and triggers appropriate responses to prevent accidents. Drowsy driving is a significant cause of accidents, so that we use eye blinking sensor. by detecting drowsiness in real time, the eye blinking sensor can help to detect the prevent accident by alerting the driver to take rest.   The eye blink sensor constantly sends infrared waves which are reflected and detected by the receiver. As the eye blinks the output of the sensor goes high. This output is sent to the Arduino board. And the vehicle automatically stops. And another most important sensor we use is ultra sonic sensor (SR04) The ultrasonic sensor is a non-contact type of sensor used to measure an object's distance and velocity. Ultrasonic sensors detect obstacles in the vehicle's path, enabling early collision warnings. The Arduino Uno processes this data and triggers appropriate responses to prevent accidents. The proposed system offers a cost-effective and efficient solution for enhancing road safety and reducing the incidence of car accidents.

     

The objectives of the project include:

1. Improving safety.
2. Reducing injuries and Fatalities.
3. This system is very useful to enhance driver awareness.

The major building blocks of this project are:

1. Eye blinking sensor.
2. Arduino UNO Microcontroller.
3. Alcohol sensor.
4. SR04.
5. 2 DC motors.
6. Battery.

Software’s used:

1. Embedded C programming.
2. Arduino IDE programmer for dumping code into Micro controller.
3. Express SCH for Circuit design.

       

       

Block Diagram:    

 

     

   

 

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