Alcohol And Drowsiness Sensing Alert, Combining With Emergency Sos And Automatic Engine Off System

Abstract

Road accidents caused by alcohol consumption and driver fatigue continue to be a major global safety concern. Conventional safety mechanisms mainly focus on post-accident response rather than proactive prevention. This paper presents an intelligent embedded safety system that integrates alcohol detection, drowsiness monitoring, emergency SOS communication and automatic engine cut-off functionality into a unified vehicle safety platform.

The proposed system continuously monitors the driver’s breath using an alcohol sensor and detects fatigue conditions through eye-blink and facial behaviour sensing. When unsafe conditions are identified, the system generates immediate alerts and prevents vehicle operation by disabling the engine ignition. In critical scenarios, an emergency SOS message containing real-time location information is transmitted to predefined contacts using a GSM and GPS module. The prototype is developed using a microcontroller-based embedded platform and validated under real-time experimental conditions. The results demonstrate that the proposed solution can significantly enhance accident prevention by enabling early detection and automated safety actions.