19-09-2017, 04:25 PM
The industry's strategy for automotive safety systems has been evolving over the past 20 years. Initially, individual passive devices and features such as seat belts, airbags, knee pads, crush zones, etc. were developed to save lives and minimize injuries when an accident occurs. Subsequently, preventive measures such as improved visibility, headlights, windshield wipers, tire traction, etc. were deployed to reduce the likelihood of an accident. We are now in the stage of actively avoiding accidents as well as providing maximum protection to vehicle occupants and even pedestrians. Systems that are on the threshold of being deployed or under intense development include collision avoidance systems. In this dissertation, advanced ideas such as pre-shock detection, ultrasonic sensor is used to detect the object in front of the vehicle and gives the signal to the microcontroller unit. Based on the signal received from the ultrasound sensor, the microcontroller unit sends a signal to the braking unit to apply the brake automatically according to the brake control and acceleration logic inputted to the microcontroller unit.