Nowadays, many people are losing their lives due to fatal road accidents or due to drowsiness or fatigueness. Here fatigue can be referred to as micro sleep or sleep for a few seconds and it may lead to a huge accident due to which people can die. So it is very important to drive safely. Many times a driver who is driving a vehicle for more than the limit then he/she gets tired and even sometimes due to overeating the driver gets drowsy. In such cases the chances of occurrence of accident are more due to drowsy driving. So, In this paper, a real time drowsiness detection and alert to the driver system is described. Along with this, sometimes accidents can be occured due to overheating of vehicle engines. In such cases drivers may forget to check coolant level or due to some reason radiator and coolant level is not showing proper result while driving for a long distance. To avoid the overheating of the engine and to prevent further misfortune, the system is designed to avoid such things by giving voice messages to the driver.

Keywords : OpenCV, Eye Aspect Ratio, Image Processing.