Interactive Voice Response System For College Automation (IVRS)

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Interactive Voice Response System For College
Automation (IVRS)
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Introduction What are interactive voice response
(IVR) systems?

• The Interactive Voice Response (IVR) System
  serves as a bridge between people and computer
  databases by connecting the telephone
  network with the database. The telephone user can
  access the information from anywhere at anytime
  simply by dialing a specified number and
  following an on-line instruction when
  a connection has been established. The IVR system
  uses pre-recorded or computer generated voice
  responses to provide information in response to
  an input from a telephone caller

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Interactive Voice Response System For College
Automation (IVRS)

• Now-a-days every institution needs
  automation. As a part of college automation,. In
  the hardware side embedded system has been used.
  A 20 pin microcontroller 89C2051 is used because
  of its compatibility with our hardware. This
  microcontroller controls the whole hardware.
  Telephone line is used for communication purpose.
  Visual Basic has been used for software
  programming. Presentation in the class and
  outcome of the university are made reachable to
  the parents by our project. It will be very
  obliging to the parents to be acquainted with
  their son's/daughter's recital in the college

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CIRCUIT
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SCHEMATIC 
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Power supply In this system we are using 5V
power supply for microcontroller of Transmitter
section as well as receiver section. We use
rectifiers for converting the A.C. into D.C and a
step down transformer to step down the voltage.
The full description of the Power supply section
is given in this documentation in the following
sections i.e. hardware components.
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• MICRO CONTROLLER (AT89S51)?The AT89S51 is a
  low-power, high-performance CMOS 8-bit
  microcontroller with 4K bytes of in-system
  programmable Flash memory. The device is
  manufactured using Atmels high-density
  nonvolatile memory technology and is compatible
  with the industry standard 80C51 instruction set
  and pin-out. The on-chip Flash allows the program
  memory to be reprogrammed in-system or by a
  conventional nonvolatile memory programmer. By
  combining a versatile 8-bit CPU with in-system
  programmable Flash on a monolithic chip, the
  Atmel AT89S51 is a powerful microcontroller which
  provides a highly-flexible and cost-effective
  solution to many embedded control applications.

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• Voice IC (APR 9600) This device will receive the
  signal of human voice through mike. It is having
  28 pins on its IC. It consists of 8 message lines
  (or channels) to which we can give a voice
  message and it can operate in any one of two
  modes (recording and playback). The supply pins
  are connected to power supply circuit. Analog
  (AGND) and digital ground (DGND) pins of voice
  decoder IC are connected to VSS of power supply.
  Analog power supply. All the voice channels pins
  are connected to the port1 of microcontroller.

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• DTMF (DUAL TONE MULTI FREQUENCY) ?The M-8870 is a
  full DTMF Receiver that integrates both band
  split filter and decoder functions into a single
  18-pin DIP or SOIC package. Manufactured using
  CMOS process technology, the M-8870 offers low
  power consumption (35 mW max) and precise data
  handling. Its filter section uses switched
  capacitor technology for both the high and low
  group filters and for dial tone rejection.

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• EEPROM 24C02 ?The project Smart Card based
  Library Management System makes use of smart
  card technology to provide authentication. The
  Smart card is taken as a means of authentication
  with the details like student name, id of book
  being taken by the student etc stored on it. But
  in order to give id s to all the books available
  a memory is required. This requirement is
  fulfilled by making use of EEPROM.

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SOFTWARE
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Other future application of IVRS

• Airline / Railways / Bus Stations Arrival/Departur
  e timings Reservation Status Tele-booking.
• Banks/Financial Institutions Auto attendant
  Account status Balance Amount in the account Loan
  information etc.
• Telemarketing Market divisions of Industrial
  units
• Tele-survey Market research organizations
• Hotels Auto attendant Reservation
  Room availability status.
• Retail stores Tele-ordering / Tele-information.
• Stock market Shares information.