IoT-Based Smart Helmet with Alcohol Detection & Engine Control Using Arduino

Introduction

The IoT-Based Smart Helmet is an innovative safety device designed to prevent road accidents caused by drunk driving. This Arduino-powered helmet detects alcohol consumption, ensures the rider wears the helmet properly, and controls the vehicle’s engine accordingly. With IoT integration, it can send real-time alerts to emergency contacts in case of an accident.

Components Used

• Arduino Uno/Nano – Microcontroller for processing data.
• MQ-3 Alcohol Sensor – Detects alcohol in the rider’s breath.
• IR Sensor – Checks whether the rider is wearing the helmet.
• RF Transmitter & Receiver – Communicates between the helmet and vehicle engine.
• Relay Module – Controls engine ignition based on sensor data.
• GPS Module (Optional) – Tracks location in case of an accident.
• GSM Module (Optional) – Sends emergency alerts to predefined contacts.
• Buzzer & LED Indicators – Alerts the rider and surrounding people.

How It Works

1. Alcohol Detection – The MQ-3 sensor detects alcohol in the rider’s breath.
2. Helmet Detection – The IR sensor ensures the rider is wearing the helmet.
3. Engine Control – If alcohol is detected or the helmet is not worn, the system prevents engine ignition using a relay.
4. Emergency Alerts – If an accident occurs, GPS and GSM modules send location-based alerts.
5. IoT Integration – The system can log real-time data for safety monitoring.

Key Features

✔️ Prevents Drunk Driving – Disables engine ignition if alcohol is detected.
✔️ Helmet Safety Enforcement – Ensures the rider wears the helmet.
✔️ Accident Detection & Alerts – Sends emergency notifications in case of an accident.
✔️ IoT Connectivity – Real-time monitoring and alerts via the internet.
✔️ User-Friendly System – Simple and efficient safety mechanism.

Applications

✅ Motorcycle Safety – Enhances road safety by preventing drunk driving.
✅ Fleet Management – Ensures safe driving in delivery and transportation services.
✅ Personal Safety – Provides an extra layer of security for individual riders.

This Smart Helmet System integrates IoT, alcohol detection, and engine control to prevent accidents, enhance safety, and save lives. 🏍️⚡🚦