Smart Bike Security System with Alcohol Detection and GPS Tracking

“Sober Lock: Smart Bike Security System with Alcohol Detection and GPS Tracking” is an emerging technology that addresses drunk driving as a big global challenge, contributing to many fatalities per year. Existing bike lock systems lack mechanisms to prevent intoxicated riders, which, in turn, may create unsafe road conditions. This system is designed for the detection of alcohol consumption, prevention of ignition, and real-time GPS tracking. It consists of the microcontroller ESP32 that interconnects several components, including an I2C LCD, a GPS tracking module (NEO-6M), and an alcohol sensor (MQ-3). For the system to stop the occurrence of accidents due to alcohol consumption, the alcohol sensor will enable the bike to be unlocked only if the rider is considered sober. Thus, to unlock the system, the smartphone application built from MIT App Inventor interacts with the GPS module in providing real-time updates of the bike's location, thus allowing consumers to monitor their bikes remotely and subsequently prevent theft or ease recovery in case of loss. The I2C LCD acts feedback-wise, giving real-time updates about its location and alcohol detection to interact with the user easily. Similarly, the system's real-time GPS tracking module helps users track the bike via an online web interface. Experimental results prove its accuracy for alcohol detection and GPS tracking, making it a good solution to avert drunk-driving scenarios and vehicle security.