Objective
- Auto Braking System :- :-
The objective of this project is to
design the automatic braking system in order to avoid the accident.
Scope
This project is necessary to be attached
to every vehicle. Mainly it is used when drive the vehicles in night time.
Mostly the accident occurred in the night time due to long travel the driver
may get tired. So the driver may hit the front side vehicle or road side trees.
By using this project the vehicle is stopped by auto braking system. So we can
avoid the accident.
Block
Diagram
Brief
Methodology
This project is designed with
microcontroller, Ultrasonic Transmitter, Receiver, Signal conditioning unit,
Analog to Digital converter, Driver Circuit and Mechanical arrangement.
The oscillator circuit generate 40KHZ
frequency signal. It is transmitted through ultrasonic transmitter. The
ultrasonic receiver is used to receive the reflected wave due to in front of
the vehicle. Then the reflected wave is given to signal conditioning unit in
which the incoming wave is amplified and converted into square pulse. Then the
square pulse is given to ADC. Depends upon distance the reflected wave strength
is varied.
ADC is nothing but analog to digital
converter, which converts the input analog signal into corresponding and digital
signal. This digital signal is given to microcontroller.
The microcontroller may Atmel or PIC
both are flash type reprogrammable microcontroller in which we have already
programmed. So it received the signal from ADC displayed on the LCD display.
This is equal to distance between the vehivle and front side object. The object
may vehicle, trees or road barriers. Nearest dangerous distance value is
already stored in the microcontroller. When measured distance is reached this
value, microcontroller automatically activates the relay driver circuit. The
relay output is directly connected to mechanical arrangement. Through this
mechanical arrangement braking is provided and vehicle is stopped in order to
avoid the accident.
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