Design and Implementation of an Embedded Smart Helmet for Alcohol Detection and Ignition Interlock
DOI:
https://doi.org/10.15662/IJEETR.2026.0802162Keywords:
Smart Helmet, Alcohol Detection, MQ-3 Sensor, Ignition Interlock System, Ignition Interlock SystemRider Safety, Wireless Communication, Vehicle SafetyAbstract
Road traffic accidents involving two- wheeler riders represent a critical public safety challenge worldwide. Behavioral risk factors such as alcohol-impaired riding and helmet non-compliance significantly contribute to fatal and severe injury incidents. Conventional enforcement mechanisms primarily rely on legal regulations and manual inspections, which lack real-time preventive intervention capability. This paper presents the design, implementation, and performance evaluation of a Smart Helmet Based Alcohol Detection and Ignition Lock System employing MQ-3 analog alcohol sensing, helmet wear detection, and wireless RF communication for automated rider safety enforcement. The proposed system enables quantitative estimation of alcohol concentration by leveraging the analog output characteristics of the MQ-3 gas sensor. The helmet-mounted module continuously monitors rider sobriety and helmet compliance conditions, transmitting safety information to the vehicle-mounted control unit. Vehicle ignitions are permitted exclusively under validated safe conditions. Experimental validation demonstrates reliable alcohol detection, low-latency system response, robust wireless communication, and effective ignition interlock functionality. The system offers a low-cost, scalable, and practical solution for intelligent transportation safety systems
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