Driver warning System in Hill Bends

Hill stations are always favourite vacation spots for all age groups. The often used mode of transportation by many people to reach a destination is roadways. Road accidents are undoubtedly more frequent and are responsible for many deaths worldwide. The roads in these hilly regions are always filled with many hectic and endless curves such as hair-pin curves, salient curves and re-entrant curves. The curves provide either partial or no-visibility of the incoming traffic to the drivers. In this regard to address this problem a system is developed to warn drivers about the approaching traffic in hill curves. This system has ultrasonic sensors placed on both the sides of the road. The output of the ultrasonic sensor is interfaced to the Raspberry Pi 3 Board. When a vehicle is detected by ultrasonic sensor, Raspberry Pi triggers the camera to capture the image of the vehicle. The image of the vehicle is then compared with the images already uploaded in the database. The match is found and the data is send to the receiver side through Bluetooth. The output is displayed as "Two wheeler" or "Four wheeler" in the Liquid Crystal Display(LCD). An upgrade is done to the project in identifying the specific vehicle type as car, bike, lorry, jeep, etc. Instead of using solar panels which are costly, piezoelectric sensors are used for the generation of current and supplied to the components. Voice module is interfaced with Arduino to play the audio in the speaker as "car is arriving" or for respective vehicles.