Alcohol Detection and Monitoring System With Engine Locking

Author(s)	Prof. M. V. Vibhute, Prof. V. S. Godbole, Ms. Anushka Someshwar Dolas, Ms. Arya Pramod Vashivale, Ms. Poonam Satish Chaudhari
Country	India
Abstract	Road safety has become a major global concern due to the increasing number of accidents caused by alcohol-impaired driving. Driving under the influence significantly reduces a driver’s reaction time, decision-making ability, and overall vehicle control, leading to a high risk of fatal accidents. This paper presents an Alcohol Detection and Monitoring System with Engine Locking mechanism designed to prevent such incidents. The system uses an alcohol sensor to detect the presence of alcohol in the driver’s breath and a microcontroller to process the data. If the detected alcohol level exceeds a predefined threshold, the system automatically disables the vehicle ignition, preventing the engine from starting. Additionally, the system can provide alerts and monitoring features to enhance safety. The proposed solution is cost-effective, reliable, and suitable for real-time implementation in modern vehicles.
Keywords	Alcohol Detection, Engine Locking System, Drunk Driving Prevention, MQ-3 Sensor, Microcontroller, Vehicle Safety, Embedded System
Field	Engineering
Published In	Volume 8, Issue 2, March-April 2026
Published On	2026-04-09
DOI	https://doi.org/10.36948/ijfmr.2026.v08i02.73978

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