Parking sensor design with automatic braking

Abstract

In parking a four-wheeled vehicle in the reverse position, the driver often has difficulty in knowing the presence of objects behind the vehicle. With the use of a microcontroller that controls a series of sensors and braking, it can help find out information about the distance of objects, and reduce the risk of the object being hit. In this study, experimental research methods were used with a prototype based on a series of tools made. Applications in-vehicle circuits work by inputting a reverse signal and issuing object distance information that is detected by a series of tools. When the distance of an object is detected as having a risk of being hit, the circuit will give a warning and perform braking according to the microcontroller's command. From the results of the study, it was found that the braking distance is influenced by the speed of the vehicle when braking. So that the results obtained are almost the same braking distance at all initial braking distances when the experiment is carried out. It was concluded that a series of ultrasonic parking sensors with automatic braking based on the Atmega 328p microcontroller provides information on distance measurement results displayed on the LCD display that can help drivers park the vehicle. Meanwhile, if there is a driver error in parking the vehicle, the automatic braking circuit activates and stops the vehicle. This reduces the risk of being hit by objects behind the vehicle.