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									                                  Engr.Naveed Akhtar


University College Of Engineering IUB                  Page 1
                                  Engr.Naveed Akhtar

The general trend of human nature always
longing for security Physically, Mentally and
Socially. Fingerprint based security access
control and time attendance systems are used for
all kinds of office and service sector operations
in the day today environment. Fingerprint
System based access control is more secured as
compared to the conventional swipe card or ID
cards because of the exclusive fingerprint for
every entity.
Fingerprint Security Systems have fascinated
people for centuries. They have been used as a
method of personal identification since ancient
times. The two key aspects of most of the
Fingerprint System biometric solutions are
Finger Print identification and authentication.
University College Of Engineering IUB                  Page 2
                                  Engr.Naveed Akhtar

The process of identification tells you who an
individual is, or in the negative sense tells you
who they are not. Fingerprints Security is
examined using two different sets of criteria.
One way of looking at Fingerprint Security
System is using their "Class Characteristics".
Finger Print Security Systems can be used to get
rid of so many issues such as Physical Access
Control, Health care Biometrics, Fingerprint and
Biometrics Locks, Biometric Sensors and
Detectors, RFID Tags, RFID Readers, Road
Barriers, RFID Smart Card, CCTV, Metal
Detectors, LED Search Lights, Fire Alarm,
Finger Print Movement Control, Physical
Access Control, Optical Fingerprint Scanners,
Optical Sensors, Card Locks, Card Access
Control Systems, Fingerprint Technology,
Digital Fingerprint, USB Fingerprint Reader etc.
Fingerprint System Authentication is a simpler
process. It involves affirming or rejecting a
claimed identity by matching a live template

University College Of Engineering IUB                  Page 3
                                  Engr.Naveed Akhtar

with an existing one. Most of these
identification/ authentications are done by using
Smart Card. The large growth of ID - Card
based Fingerprint system security is wildly used
in Public service applications. These cards are
used for multiple purpose applications such as
Digital parking meters, telephone, vending
machines, ATM Cards, Digital Fingerprint
Security System Identity, Personal Identification
Verification Number etc.
Another kind of Fingerprint System is the
scanner using ultrasound. The process involves
high frequency sound to identify a fingerprint.
An advantage of ultrasound sensors is that they
are not affected by external hindrances like dirt
on a finger. Thermal Fingerprint Security
System Scanners work by measuring
temperature differences used for a variety of
security and data-collection purposes, from
identifying prisoners to allowing access to
information or high-security areas.

University College Of Engineering IUB                  Page 4
                                  Engr.Naveed Akhtar

University College Of Engineering IUB                  Page 5
                                  Engr.Naveed Akhtar

       When we have to learn about a new computer we have to
familiarize about the machine capability we are using, and we can do it
by studying the internal hardware design (devices architecture), and also
to know about the size, number and the size of the registers.

     A microcontroller is a single chip that contains the processor (the
CPU), non-volatile memory for the program (ROM or flash), volatile
memory for input and output (RAM), a clock and an I/O control unit.
Also called a "computer on a chip," billions of microcontroller units
(MCUs) are embedded each year in a myriad of products from toys to
appliances to automobiles. For example, a single vehicle can use 70 or
more microcontrollers. The following picture describes a general block
diagram of microcontroller.

AT89S52: The AT89S52 is a low-power, high-performance CMOS 8-bit
microcontroller with 8K bytes of in-system programmable Flash
memory. The device is manufactured using Atmel’s high-density
nonvolatile memory technology and is compatible with the industry-
standard 80C51 instruction set and pinout. The on-chip Flash allows the
program memory to be reprogrammed in-system or by a conventional
nonvolatile memory pro-grammer. By combining a versatile 8-bit CPU
with in-system programmable Flash on a monolithic chip, the Atmel
AT89S52 is a powerful microcontroller, which provides a highly flexible
and cost-effective solution to many, embedded control applications.

University College Of Engineering IUB                               Page 6
                                  Engr.Naveed Akhtar

The AT89S52 provides the following standard features: 8K bytes of
Flash, 256 bytes of RAM, 32 I/O lines, Watchdog timer, two data
pointers, three 16-bit timer/counters, a six-vector two-level interrupt
architecture, a full duplex serial port, on-chip oscillator, and clock
circuitry. In addition, the AT89S52 is designed with static logic for
operation down to zero frequency and supports two software
selectable power saving modes. The Idle Mode stops the CPU while
allowing the RAM, timer/counters, serial port, and interrupt system to
continue functioning. The Power-down mode saves the RAM con-tents
but freezes the oscillator, disabling all other chip functions until the
next interrupt

University College Of Engineering IUB                              Page 7
                                  Engr.Naveed Akhtar

The hardware is driven by a set of program instructions, or software.
Once familiar with hardware and software, the user can then apply the
microcontroller to the problems easily.

The pin diagram of the 8051 shows all of the input/output pins unique
to microcontrollers:

University College Of Engineering IUB                           Page 8
                                  Engr.Naveed Akhtar

The following are some of the capabilities of 8051 microcontroller.

        Internal ROM and RAM
        I/O ports with programmable pins
        Timers and counters
        Serial data communication

The 8051 architecture consists of these specific features:

               16 bit PC &data pointer (DPTR)
               8 bit program status word (PSW)
               8 bit stack pointer (SP)
               Internal ROM 4k
               Internal RAM of 128 bytes.

University College Of Engineering IUB                                 Page 9
                                  Engr.Naveed Akhtar

               4 register banks, each containing 8 registers
               80 bits of general purpose data memory
               32 input/output pins arranged as four 8 bit ports: P0-P3
               Two 16 bit timer/counters: T0-T1
                      Two external and three internal interrupt sources
                       Oscillator and clock circuits.

University College Of Engineering IUB                             Page 10
                                  Engr.Naveed Akhtar

BLOCKDIAGRAM OF                                        FINGER

University College Of Engineering IUB                     Page 11
                                  Engr.Naveed Akhtar

Matching algorithms are used to compare previously
stored templates of fingerprints against candidate
fingerprints for authentication purposes. In order to
do this either the original image must be directly
compared with the candidate image or certain
features must be compared.

Pattern-based                            (or           image-based)
Pattern based algorithms compare the basic
fingerprint patterns (arch, whorl, and loop) between
a previously stored template and a candidate
fingerprint. This requires that the images be aligned
in the same orientation. To do this, the algorithm
finds a central point in the fingerprint image and
centers on that. In a pattern-based algorithm, the
template contains the type, size, and orientation of
patterns within the aligned fingerprint image. The
candidate fingerprint image is graphically compared
with the template to determine the degree to which
they match.
University College Of Engineering IUB                           Page 12
                                  Engr.Naveed Akhtar

Fingerprint biometrics are used in a variety of
applications including electronic door locks,
smart cards, vehicle ignition control systems,
USB sticks with fingerprint controlled access,
and many others. Digital signal processing
elements in fingerprint scanners perform
complex DSP functions such as filters,
transforms, feature extraction, matching
operations and other algorithms.

University College Of Engineering IUB                  Page 13
                                  Engr.Naveed Akhtar

University College Of Engineering IUB                  Page 14

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