Microcontroller based "Bus backside accident alert system" is mainly used to avoid the accident behind the vehicle, which standing/running back side of the bus.
This project has contains two sections. These are transmitting and receiving section. In transmitting section, one ultrasonic sensor is used to transmit the signal. Similarly in receiving section, another ultrasonic sensor is used to receive the signal.
The operation of this system is the ultrasonic sensor transmits its wave continuously with minimum time delay and its power level is set so that its rays reach only up to a certain distance strongly and it gets reflected back if it strikes any obstacle.
So now if any vehicle nears behind this vehicle these ultrasonic waves gets reflected back and we can detect this condition using the micro controller unit and we can avoid the accident.
Micro controller is used to record those signals and then detects if there is any changes or variation in its normal operation. Then the message will be sent to LCD display and the buzzer. The
Buzzer alerts the driver. Thus with in few microseconds we are able to avoid the accident. future, this project will play an important role in public