Published Paper Details:

The present article describes the conception and execution of an alcohol detection system for vehicles that can prevent driving a vehicle under the influence of alcohol by preventing the engine from being started if alcohol is detected from the breath of the driver. The system uses an MQ-3 alcohol sensor to measure the amount of alcohol present in the air exhaled from the driver. The system implements an Arduino controlled relay system that uses a preset threshold (for alcohol content levels above to allow for non-alcohol vehicle operation), should the content exceed this level, the ignition system is turned off preventing the vehicle's engine from being started. A GPS module also tracks the real-time location of the vehicle when the relay system is active. A GSM module can then send an SMS alert to a designated contact (for example, the vehicle owner or an emergency officer). Overall, the system provides greater vehicle safety by providing preventive measures against alcohol driving but also provides real time monitoring by tracking location and sending alerts remotely.