Industrial Automation Using Mobile Communication

DTMF BASED INDUSTRIAL

AUTOMATION

Presented by:

B.VINAY KUMAR (407) A.MANOHAR REDDY (4A8) P.SANTHOSH (450)

Internal guide: MS.Sameera snehanz

CONTENTS

INTRODUCTION

BLOCK DIAGRAM

WORKING

ADVANTAGES

APPLICATIONS

CONCLUSION

FUTURE SCOPE

INTRODUCTION

Industrial automation is the application of automation techniques

for the comfort and security of its parts.

In the present world of wireless technology every thing is going

to be digital and wireless, and the cell phone is the key player in

wireless technology today.

Today the working is going on how to develop remote devices

with out the presence of man and to reduce time and labor, and

our project belongs to that race and by using it we can control

any electronic devices through a cell phone, with one sms.

What is DTMF ?

• Dual tone multiple frequency signaling (DTMF).

• Multiple-frequency signaling consists of a combination of two tones with frequencies within the speech band.

• Each combination of two frequencies representing a single digit.

• The tones are in two groups : 1 Low Band 2 High Band

DTMF(Dual tone multiple frequency signaling)

    Low                                 High                 1209 HZ    1336 HZ     1447 HZ    1633 

HZ 697 HZ             1              2                3                 A 770 HZ             4              5                6                 B 852 HZ             7              8                9                 C 941 HZ             *              0                #                 D

MAIN BLOCKS OF INDUSTRIAL AUTOMATION

MICRO-CONTROLLER

GSM MODEM

RELAY CIRCUITS

BLOCK DIAGRAM

Power Supply

(5V)

Micro Controller

GSM

Modem

HT9170B

RELAY

DriverCKT

Relay1

Relay2

Relay3

L C D

Device

Device

Device

MICROCONTROLLER

Microcontroller is a small computer.

Microcontroller consists of on-chip RAM, ROM, I/O Ports etc.

Microcontroller controls the electronic devices using the program that is provided to the controller.

A Single Chip

microcontroller

BLOCK DIAGRAM OF MICRO-CONTROLLER

PIN DIAGRAM OF MICRO-CONTROLLER

GSM MODEM

GSM (Global System for Mobile

communications) continues to assert

itself as the world's leading cellular

communications technology.

The GSM Modems can be used for

setting up a kind of M2M

communication either using CALL or

SMS services. This can be

effectively used for the automation of

various homes, offices and

industries.

RELAY CIRCUITS

• A relay circuit is designed to control

operation of electrical equipment.

• Relays are used where it is

necessary to control a circuit by a

low-power signal (with complete

electrical isolation between control

and controlled circuits), or where

several circuits must be controlled

by one signal.

WORKING ?

MICRO-CONTROLLER

GSM MODEM

MOBILE

RELAY 1 RELAY 2 RELAY 3

DEVICE 1 DEVICE 2 DEVICE 3

APPLICATIONS

Applications in industrial

Electronic appliances

Household Applications

Machines etc.

Can also be used for security purpose

after modification

ADVANTAGES

Wireless technology.

It is cheaper

It uses low power

Acknowledgement to the user to know the

work is done or not.

CONCLUSION

The SMS from the master unit was

successfully processed by mobile unit and

sent to micro-controller through interfaces

and successfully controlled the electronic

devices connected to micro controller.

FUTURE SCOPE

To ensure proper maintenance of machines:

By using some extra devices we can

check the status of machines whether they are

working or not and also the part which is not

working properly(sensors) .

• Enter the password.

• When the password has been incorrectly entered four times in a row, the interface an error sound is produced and the receiver replaced on-hook this function finds any attempt by 'hackers' to quickly try a large number of codes in a sequence.

• If password is correct enter in to the main menu .• Main menu : Enter Command * < 1 – 8 > * - operate one of the four relays 1 to 8. # < 1 – 8 > # - release one of the four relays 1 to 8. 123 – Read EPROM 456 – Change password 789 – Read relay status * 0 # - Line disconnected

THANKS!!

Special thanks to all of you for your Patience