ALCOHOL DETECTING AND NOTIFICA TION SYSTEM FOR CONTROLLING DRINK DRIVING

Abstract

It takes being alive and healthy to tackle challenges for sustainable development as well as harness the benefits thereof. The scourge of drink driving has led to loss of life and properties. Control measures to ensure drivers are not under the influence of alcohol while driving such as Blood Alcohol Content (BAC) check remains unrealizable due to the huge personnel, equipment, and maintenance cost involved. A less consuming effort has been proposed using MQ3 gas sensor mounted on the steering wheel, powered by the ignition of the vehicle, to detect alcohol level of the subject controlling it. The alcohol detected from the subject is processed by an ATMEGA 16 Microcontroller that compares it with a set threshold for compliance. If the threshold is exceeded, three modules are simultaneously triggered. The fuel supply control module is activated by a relay to cutoff supply towards bringing the vehicle to a momentar y halt. The Liquid Cr ystal Display (LCD) module is activated to show alcohol has been detected. The Global System for Mobile communication (GSM) module sends the same notice on the LCD to subject's next- of-kin/law- enforcement-agent phone line for immediate attention. This system was developed and tested using a toy car . The result showed that it could be implemented in real life situation provided that all specifications are taken into consideration