An Effective Obstacle Alert Parking System based on AT89S52 Microcontroller using Ultrasonic sensor

Abstract

On grounds of safety & security, automation & protection are the areas which find their applications in almost all the fields as they make human life more comfortable, economic & less rigid. This paper is about for developing a module which assists and warn a car driver it continuously detects the obstacle so as to avoid accidental situation while reversing the vehicle. This system can be used in vehicles, handy tool for disabled person, robotics, medical field, measurement, agriculture and industrial applications. These is a microcontroller based system in which an ultrasonic sensor transmits ultrasonic waves from its sensor head and once more receives the ultrasonic waves reflected from an obstacle and inform the microcontroller which signals the driver with an alarm and controls the vehicle by stopping it. This system endures mainly the obstacle detection module, which is interfaced with AT89S52 microcontroller. The hardware circuits of entire system and the success of several key technologies are considered, including transducer structure and parameters selection, design of the corresponding circuit and AT89S52 microcontroller which is used as systems main control unit