An Efficient Low Cost Wiper System for Autonomous Vehicle

The traditional wiper system requires driver’s attention to switch on the wiper system during precipitation. Whereas in traffic condition, driver should not be diverted by manual adjustment of switching the wiper system which may leads to accident. Probably 80% of accidents are mainly due to distraction of driver. In this scenario we need to obtain an automatic wiping on the wind screen during rain so as to avoid distraction of driver. The existing automatic wiper system has false wiping just after the rainfall stops which can be overcome by using proposed wiper system. Always just after the rainfall a few droplets on the existing water sensor will be sustained until it is cleaned or inherently evaporated. These water drops make a connection between two grid lines to occur false wiping. The advantage of proposed automatic wiper system is compared with the water sensor of existing automatic wiper system after rainfall. The proposed system in this paper is more accurate and economically cheap which can be implemented in all low and middle level cars. In order to avoid critical situation this automatic wiper system provides variable wiping speed based on precipitation level. This automatic wiper system has low cost plate based water sensor, ATMEGA8 microcontroller, MOSFET driver and wiper motor. Keyword-80% of accidents, existing automatic wiper system, false wiping, advantage of proposed automatic wiper system, plate based water sensor, ATMEGA8 microcontroller, MOSFET driver and wiper motor.