Interactive Voice Response System (IVRS)Presented by

Sateesh Kuna

Srinivasrao Dhavanam

Prudhvi Bolli

Nirup Charan K

Ashok Kumar M

Under the guidance of

Mr. B.Durgamalleswara Reddy

B.Tech, Asst. Professor

Introduction The main aim project is to improve the needs by

providing the equipment in the home or industries we can control the devices by ON and OFF from any part of the world with mobile

Literature Survey GSM Mobile PhoneMini ControllerIR version of Mini controllerMini TimerBy Cybernetic concept

Hardware RequirementsMicro controller (AT89S51)Light Emitting Diodes(LEDs)Power supply

Micro Controller(AT89S51)Features:

4K Bytes of ISP Flash Memory4.0V to 6.6V Operating RangeFully Static Operation: 0 Hz to 33 MHzThree-level Program Memory Lock128 x 8-bit Internal RAM32 Programmable I/O LinesTwo 16-bit Timer/CountersSix Interrupt Sources

Pin diagram of AT89S51

Micro Controller(AT89S51) contd..Microcontrollers are like single chip computers

that are often embedded in to other systems to function as processing or controlling unit.

They are useful to communicate with other devices such as displays, sensors, buzzers to process input to a set of actions.

AT89S52 controller is selected because of inbuilt ISP (in system programmer) and in order to fulfill our applications

Light Emitting Diodes(LEDs)Operation of a LED

LEDs contd…Low working voltages and currentsLess power consumption Very fast action Emission of monochromatic light small size and weightNo effect of mechanical vibrationsExtremely long life

Power Supply

Power Supply contd…Transformer RectifierFilter RegulatorLoad

Circuit Components

Micro ControllerAPR9600 (Voice IC)M-8870(DTMF IC)Light Emitting Diodes

APR9600(Voice IC)FEATURES

Single-chip, high-quality voice recording & playback solution

Non-volatile Flash memory technologyUser-Selectable messaging optionsUser-Selectable messaging optionsChip Enable pin for simple message expansionLow power consumption

APR9600(Voice IC)contd..

APR9600(Voice IC) contd…Functional descriptionMessage management

General descriptionPlayback in tape mode using auto rewindRecording in type mode using auto rewind

Message managementPlayback in tape mode using auto rewind

Message ManagementRecording in tape mode using auto rewind

DTMF M-8870FEATURES:

Low Power ConsumptionAdjustable Acquisition and Release Tim Central Office Quality and PerformancePower-down and Inhibit Modes (-02 only)Inexpensive 3.68 MHz Time BaseSingle 6 Volt Power SupplyDial Tone Suppression

DTMF M-8870 contd…Pin diagram

DTMF M-8870 contd…Functional description

Filter DecoderSteering circuitClock circuit

Block diagram of IVRS

MICROCONTROLLER

Power supply

DTMF receiver

Mobile

Voice IC

AT89S51

Schematic

Working ProcedureInterface DTMF 8870 with MC Port 2.0-2.4 pinInterface APR9600 with port 1.0 of MCApply power supply to ground and Vcc terminals of

AT89S51,APR9600 and M-8870Apply mobile connections to both voice and DTMF

ICs Connect devices to control to the port 3 pins of

AT89S51 MC Reset the microcontroller with RST pin of AT89S51

MC

Applications The ability to control lighting & household appliances Easy controlling action of machines in an industry Device controlling in Colleges and Schools Monitoring of domestic appliances, home security and

energy management Easy to handle in office buildings, shopping malls and

luxury homes

AdvantagesEasy interaction to the usersLess cost and easy to install Easy to maintainRemote based controlling of devices in home Communication to our devices from all parts of the

WorldSecure in critical applications

Conclusion Finally we conclude this system that would help for

the good interaction of user with the heard voice (in mobile) and responding to it as per his need so that the user can automated the devices in homes, industries.

Future scopeSMS based system

Helpful in low signaling areasAs the number of devices increases delay

increases and cost of call also increasesNoise and disturbance not occurred by

sending SMS