Microcontroller Based Elevator System

Abstract- In today’s society technology is growing at an exponential rate, and elevator is very common example of technology for consuming time of human being Elevator began as hoists. An elevator is platform that can move up and down in vertical direction by a mechanical means .In the past elevator drive mechanism were powered by stream and water hydraulic piston. In today’s world, there are intricate governors and switching schemes to carefully control cab needs in any situation, buttons have been giving way to keypads. In our project, the atmega8 microcontroller based lift system is constructed to simulate as an actual lift in the human life. The elevator control system is one of the important aspects in electronics control module in automotive application. Here elevator control system is designed with different levels. First the elevator control system is implemented for multi-storage buildings. [1]

Keywords— PCB board ; Microcontroller Atmega8 IC; L293D motor; IR sensor module; LCD; Step down Transformer; Push buttons; IC base28 pin; IC base16 pin; burg strip 1*40 male connector ; LM7805; LM7812.

I. INTRODUCTION

Elevator, is a transport device which is very common to us in present days. We use elevator every day to move goods or peoples vertically in a high building such as shopping centre, working office, hotel and many more places. It is a very useful device that moves people to the desired floor in the shortest time. In this project, Atmega8 microcontroller is used as the primary controller and it consist of various inputs and outputs circuits together with a lift model. The Atmega8 Microcontroller is used to coordinate the functions of various hardware circuitries. Service request circuit or keypad and sensors are used as input. Stepper motor driver circuit, DC motor circuit, seven-segment display, buzzers and various types of LED (light emitting diodes) displays are used as output. The lift model was constructed to simulate an actual lift in the real life. It can be counted as the output hardware of the system. The software for the system was designed according to the real lift traffic management algorithm.
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