Control System Project

ELEVATOR Control System

Group Members

Sheikh Arslan Ali Riaz Ali RazaMurtaza Manzoor

Objective

The goal of our project is to design an

efficient elevator that can accept input from a user and mechanically operate (on a small scale) a system of 3 floors and 1 elevator using pulleys and simple DC motor.

Services /Applications

Passenger service

Residential elevator services

Freight services

Vehicle services

Services /Applications

Project video

&

website Demo

BLOCK DIAGRAM

Technical Detail

Main Components

Micro Controller(8051)H-BridgeSeven Segment DisplayPush Button keypadGeneric BoardMechanical Structure

Microcontroller

Microcontroller: We are using “Atmel AT89c51” microcontroller . We are programming the microcontroller in ‘C’ language using Keil-Microvision 3.

H-Bridge

The primary function of H-Bridges is to control Speed and Directions of rotation lift

H-Bridge

Brief Description of some main circuit component

H-bridge: IFR-9540 (P-Channel MOSFET)

IRF-540 (N-Channel MOSFET)

2222 (BJT: for switching the

MOSFET)

Relays

Seven Segment Display &Keypad

Seven Segment Display is used to show the lift position Keypad/Push Buttons used to control the lift movement

Mechanical Design

Mechanical Design

Our elevator shafts are built from wooden pieces.  We chose this material because it offered no flexibility in design, ease of construction, and were available for free.  We added dowels to align the elevator cars within the shafts.  The elevators are raised and lowered with twine using a pulley system.  The other end of the twine was attached motor.  The motors were nailed to piece of wood.

Difficulties Faced

Designing Development BoardDesigning h-bridgeDesigning mechanical structuresDesigning PCBs

Future work

Future work

To make it work as a real time elevator/closed to reality having all features of real time elevator

Questions?

THANK YOU