Final Year Project

Final Year Project Presentation

On“Overhead bridge Electromagnetic Crane”

PRESENTED BY:

PRESENTED TO:FINAL YEAR PROJECT COMMITTEEDEPARTMENT OF ELECTRONIC ENGINEERING

• SYED UMAIR HASAN (2006-EE-385)• AQUEEL ALAM (2006-EE-389)• MUHAMMAD SHARIQ SIDDIQUI (2006-EE-393)• MUHAMMAD BILAL KHAN (2006-EE-396)• UMAIR IQBAL (2006-EE-411)• MUHAMMAD WAQAS (2006-EE-616)

MR.SHAJI-UL-HASAN ASSISTANT PROFESSOR ( EED SSUET )

INTERNAL ADVISOR

PROJECT OBJECTIVE

To measure the dimensions (length and height) of objects that are coming through

conveyor belt , sensed by the sensors & placed in allocated areas which is

predetermined.There are two primary modes of operation

on which the task perform.Automatically or manually

BACKGROUNDWe have chosen a path to implement our innovative ideas in the form of this

project named as OVERHEAD BRIDGE ELECTROMAGNETIC CRANE. The basic concept, which is emerged out from our project is to handling objects over a certain height.

• Overhead cranes are designed to a specific application and location. Our crane contain electromagnet hoist..

• Even in a production line of many products, electromagnetic lifts are used to lift and move metal objects.

• Electromagnets have special simplicity and many advantages to other lifting tools. They are faster and easier to work with.

Features of projectThere are various FEATURES of our project. It can offer number of advantages to the

user. Our project has some of the most countable features that have mentioned below:-

• Automatic: In automatic transmission object should be placed without human

interface.• • Manual Manual operation permits the user to make use of a joystick• • Place objects in its compartments/• • Electro magnetically pick and drop of objects.• • Weight handles up to 500grams.• • Display length and height of the object o on LCD.

BLOCK DIAGRAM

FLOW CHARTStart

Conveyor move

Measurement of object through sensor Display on LCD

DecisionAutomatic/

Manual

Bridge stepper movement

Trolley stepper movement

DC Motor CW-movement

Electromagnetic power-on(object pick)

Bridge stepper movement

Trolley stepper movement

DC Motor CW-movement

Electromagnetic power-on(object pick)

Object Placed

Stop

In manual mode, bridge and hoist stepper, dc motor and

electromagnetic all are controlled via joystck panel

Automatic

Manual

PROJECT PARTSThe Overhead Bridge Electromagnetic Crane is

divided into two basic parts:

• Electronic partThis part of the project consist of electronic circuitry and all the electronic devices which is used to work together with the mechanical structure .

• Mechanical partMechanical part of the project is consist of the basic structure of the electromagnetic bridge crane and the conveyor belt which is used to move objects and is operated by the software.

ELECTRONIC PARTCOMPONENTS

• MICROCONTROLLER ATMEL AT89C52• STEPPER MOTORS• DC GEAR MOTOR• ELECTROMAGNET• VEXTA DRIVER• LCD• PHOTOTELECTRIC SENSORS• JOYSTICK• CONVEYOR BELT SYSTEM• LIMIT SWITCHES

Why we used 89c52

• CISC architecture….less coding when compared PIC & AVR microcontroller

• 89c52 controller are easy to programmable.• 89C52 controller has 8k bytes of flash

programmable and erasable read only memory. • The AT89C52 is a low-power, high-performance CMOS• 89c52 is lower cost than other microcontroller

i.e. PIC,AVR etc.• 89c52 is commonly available in market.

VEXTA STEPPER DRIVER

Two 5phase stepper drivers are used for driving steppers of trolley and hoist. This driver is interface with microcontroller and stepper motors the clock rate of this drives are controlled by the microcontroller.

STEPPER MOTOR

Two hi torque 5 phase stepper motors are used in trolley and bridge movement system. This stepping motors are interfaced with the Microcontroller, when the signal is received the motor starts to work with the help of vexta stepper driver.

DC GEAR MOTOR

DC gear motor operates on 12 volts and is controlled by the Microcontroller. Two DC gear motors are present here; one is on conveyor belt system and second is on hoist movement system. The motors are interfaced with the Microcontroller, when the signal is received the motor starts to work.

ELECTROMAGNET

Round and Rectangular Flat-Faced Electromagnets are used for lifting objects in manually operated or automated operation. Electromagnet is operating at 15vDC. Flat-Faced magnets should only be used on flat, smooth material where the entire magnet face is in contact.

LCD

• We use 16*2character display Lcd.

• It will display parameters length &

height

PHOTOELECTRIC SENSORA photoelectric sensor is a device used to detect the distance, absence, or presence of an object by using a light transmitter, often infrared, and a photoelectric receiver. The detection way is a scattered reflection type and the maximum detection distance range is 30cm. three photoelectric sensors are used for measurement of object dimension.

Photo coupler

PC 817 photo coupler is a device that uses a short optical transmission path to transfer an electronic signal between elements of circuits By keeping them electrically isolated.

LIMIT SWITCH

Limit switches can be used to control the motions of machines, for example, to indicate that a motor has reached its full position or that a machine tool is in a position to accept another work piece.

CONVEYOR BELT SYSTEM

• We use 2ft long and 6inches wide conveyor belt.

• This can be controlled by stepper motor also.• Laser sensors and receivers are also fitted into

the structure of conveyor belt

Structure of crane

SPECIFICATIONS

• CAPACITY 500grams/1.1lb

• ENCLOSED TRACK Iron & Aluminum• ALUMINUM RAIL LENGTH 3ft/0.9144m • ALUMINUM BRIDGE LENGTH 2ft/0.6096m

TASK TIME ITEMS COST

Research Work 2 months Mechanical part Rs 15000/=

System designing 2 months Freight ChargesRs 1000/=

Hardware designing

3 months Travel ChargesRs 4000/=

Software and firmware

1 months Market SurveyingRs 5000/=

Hardware Prototype

2 months Hardware Circuitry Rs 20000/=

Report writing / presentation

1 months Other Expenses (Including

Documentations) Rs 5000/=

Total Time 11 months TotalRs 50000/=

TIME AND COST ANALYSIS

PROJECT APPLICATIONS

• Shipping cargo• Steel mills• Automobile industries• Metallurgical industries • Marine industries• Petroleum refineries

FUTURE ENHANCEMENT• Wireless joystick Our project contain wired joystick panel which

would be change with any latest radio technology to control the operation of crane wirelessly.

Hoist modifications Our project contain electromagnetic hoist, which

lift only iron-steel related objects. As for future enhancement could be use to lift different material objects.

• Hooks-end• Grabber jaws• Hydraulically pick objects etc.

CONCLUSION

Automated lifting of the object with respect to it length and height vise will revolutionalize the iron- steel related Industry. It will offer a better, inexpensive method to reduce man power. Secure lifting is offered and man power is decreased.

This project offers the following facilities.• Superior Controlling.• Easy flash based programmable.• A Reliable Solution for iron related industries.