Design of Ignition System Deactivator of Suzuki Rusco for Drunk Driver

Road accidents increase every year in the Philippines, might it be in urban areas or rural areas. One of the leading causes of road accidents is driving under the influence of alcohol. This happens due to the reckless behaviour of the driver, which can lead to fatality, damage of infrastructures and even death. The aim of this study is to develop a device that can activate or deactivate the ignition system of the Suzuki Rusco in the presence of alcoholic odor. For the system to be able to sense the alcohol odor in the system of the driver an alcohol sensor, MQ3 was used. This sensor was able to sense if the concentration of the alcohol odor exceeds the amount 0.05mg/L, making the ignition system of Suzuki Rusco to deactivate, thus preventing a drunk driver to operate the said vehicle. This device used a microcontroller where the program was embedded for the system to analyze the alcohol concentration detected by the sensor. The microcontroller will activate or deactivate the ignition system based from the amount of concentration from the alcohol sensor. The device was tested several times to make necessary alterations needed and to improve the device for it to be able to meet the desired output.