Development of Alcohol Sensor Detector with Engine Locking System for Accident Prevention

The alcohol detection with engine locking system is proposed to eliminate the rise of number of roads accidents caused by extreme intake of alcohol by drivers. The system is developed to monitor the level of alcohol in the exhaled breath of a driver and the data is transmitted through the wireless communication to activate the engine locking system. The Arduino Mega microcontroller with MQ-3 alcohol sensor, DC motor and HC-05 Bluetooh module are used for the system development. The experimental results show that the presence status of passive in-vehicle driver breath alcohol detection could be transmitted through the Bluetooth module and received by the dedicated phone number for emergency notification purpose. Therefore, the prototype is useful for preventing fatal accident due to the drunken driver.