Dual Phase Intoxication Monitoring and Ignition Prevention system using STM32 for Two-Wheelers

DOI

10.2991/978-94-6463-858-5_152How to use a DOI?

Keywords

Motorcycle safety; Alcohol detection; Ignition control; STM32 microcontroller; ESP32; BAC monitoring; Helmet sensor; Engine cutoff; GPS tracking; GSM alert

Abstract

Advanced safety measures are essential due to the high frequency of motorcycle accidents, particularly those that involve alcohol. This proposal introduces a two-stage approach for comprehensive alcohol detection and ignition control. The initial stage involves integrating a MQ-3 alcohol sensor with an STM32F103C6T6 microcontroller, which acts as the main system. The microcontroller, coupled with an ESP8266 module for Wi-’Fi and Bluetooth connectivity, facilitates communication between components. The MQ-3 sensor can identify the presence of alcohol in a rider’s breath. The microcontroller’s ADC converts the sensor’s analog signal into digital data and the Blood Alcohol Concentration (BAC) level is assessed against a preset threshold. The motorcycle’s ignition is controlled based on this assessment, disabling it if BAC exceeds the threshold. Second stage enhances safety through continuous monitoring using a second MQ-3 sensor embedded in the rider’s headgear, connected to ESP32 module. This sensor ensures ongoing alcohol detection while the rider is in motion. If the helmet sensor detects elevated BAC levels during a ride, it transmits an alert to the STM32, which activates an engine termination mechanism. A GPS module monitors the motorcycle’s real-time location, and a GSM module transmits an alert message with the rider’s location to a designated contact in case of high BAC detection. This dual-layer approach is designed to reduce the number of accidents and driving under the influence (DUI) by preventing intoxicated and unauthorized individuals from operating the motorcycle, thereby improving overall safety.

Copyright

© 2025 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - T. Boopathy
AU  - C. Yuvaraj
AU  - G. M. Sivaparthasarathy
AU  - R. Dishor Immanuvel
AU  - G. Vignesh
PY  - 2025
DA  - 2025/11/04
TI  - Dual Phase Intoxication Monitoring and Ignition Prevention system using STM32 for Two-Wheelers
BT  - Proceedings of International Conference on Computer Science and Communication Engineering (ICCSCE 2025)
PB  - Atlantis Press
SP  - 1856
EP  - 1867
SN  - 2352-538X
UR  - https://doi.org/10.2991/978-94-6463-858-5_152
DO  - 10.2991/978-94-6463-858-5_152
ID  - Boopathy2025
ER  -