Vehicle Headlight Automatic Bright and Dim Control System

Abstract

Headlights of vehicles pose a great danger during night driving. The drivers of most vehicles use high, bright beam while driving at night. This causes a discomfort to the person travelling from the opposite direction and therefore experiences a sudden glare for a short period of time. This is caused due to the high intense headlight beam from the other vehicle coming towards the one from the opposite direction. In this paper, an automatic headlight dimmer which uses a sensor has been designed to dim the headlight of on-coming vehicles to avoid human eye effects. This automatically switched the high beam into low beam, therefore reducing the glare effect by sensing the light intensity value of approaching vehicle. Road accidents are a serious cause of concern and glare from headlamps of vehicles during night time create havoc for the drivers making driving really an uphill task and due to the undesirable situation, drivers meet with accidents. It’s a very hectic job for the drivers to manually control the beam of the headlamps during night from time to time when an oncoming vehicle is located within 150 meters of the other vehicle. So, it’s high time when a safety control unit should be installed in vehicles that can automatically dim the headlamps by detecting their intensity which, otherwise, might cause a serious trouble for the drivers. Our work proposes a cost effective and useful control unit which will automatically detect the excessive glare from headlamps and will give a signal to the oncoming vehicle causing the trouble to dim the lamps. As such, the driver’s unnecessary load will be reduced and driving will become safer and smoother during night.