Finger Print Present at On

8/8/2019 Finger Print Present at On

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FINGERPRINT BASEDFINGERPRINT BASED

ACCESS CONTROLACCESS CONTROLSYSTEM WITH USER FACESYSTEM WITH USER FACE

IDENTIFICATIONIDENTIFICATION



INTRODUCTIONINTRODUCTION

Biometrics is making revolution in the field of Biometrics is making revolution in the field of access control and security systems. Most of theaccess control and security systems. Most of thesystems used today are using punch cards or systems used today are using punch cards or

smart cards for time & attendance purposes.smart cards for time & attendance purposes. The main disadvantage of this system is there isThe main disadvantage of this system is there is

always chance of fake entry and thus falsealways chance of fake entry and thus falsestorage will take place.storage will take place.

This problem can be overcome by use of This problem can be overcome by use of fingerprint scan verification. Since thumb is thefingerprint scan verification. Since thumb is theunique identity of each individual it is notunique identity of each individual it is notpossible to enter fake timings for entry or exit.possible to enter fake timings for entry or exit.



But in case of highly secured systems ex,But in case of highly secured systems ex,

Military premises fingerprint alone cannotMilitary premises fingerprint alone cannotprovide the highest level of security. In thisprovide the highest level of security. In this

case to make a highly secured system facecase to make a highly secured system face

identification is additionally provided as anidentification is additionally provided as an

ultra measure.ultra measure.



SUMMERYSUMMERY

This project implements a BiometricsThis project implements a Biometrics

Access Control Terminal with fingerprint & Access Control Terminal with fingerprint &

face identification using an ARMface identification using an ARMmicrocontroller. Ethernet capability canmicrocontroller. Ethernet capability can

also be provided to make a completealso be provided to make a complete

Network Enabled Biometrics AccessNetwork Enabled Biometrics Access

Control System.Control System.



The fingerprint of the user will be capturedThe fingerprint of the user will be capturedusing the fingerprint scanner module. Theusing the fingerprint scanner module. Thefingerprint would be processed by thefingerprint would be processed by themodule and if a match is found then thismodule and if a match is found then this

data is communicated to the ARM uC.data is communicated to the ARM uC.

Then uC will also capture the timestamp of Then uC will also capture the timestamp of the fingerprint scan from the RTC.the fingerprint scan from the RTC.

All these timing details will be stored in the All these timing details will be stored in thememory.memory.



LCD will be used to display differentLCD will be used to display differentmessages.messages.

LED and buzzer indication can also beLED and buzzer indication can also beprovided for access allowed/accessprovided for access allowed/accessdenied etc.denied etc.

The keyboard will be used to enter user The keyboard will be used to enter user ID, to change user ID, for selecting modesID, to change user ID, for selecting modesetc.etc.

Once a user is successfully verified at theOnce a user is successfully verified at the

terminal using his/her fingerprint, a liveterminal using his/her fingerprint, a liveimage of the user is captured using theimage of the user is captured using theCMOS camera at the terminal.CMOS camera at the terminal.



The image will be transmitted over TCP/IPThe image will be transmitted over TCP/IP

to the server.to the server.

The software on the sever will retrieve theThe software on the sever will retrieve the

user image stored on the server databaseuser image stored on the server database

and will provide a comparison between theand will provide a comparison between the

retrieved and the live image.retrieved and the live image.

Once the identity of the user is verifiedOnce the identity of the user is verified

completely the user can be grantedcompletely the user can be granted

access to the premises.access to the premises.



MAIN COMPONENTSMAIN COMPONENTS

Fingerprint Scanner Module.Fingerprint Scanner Module.

CMOS Color Camera.CMOS Color Camera. Ethernet Controller Interface.Ethernet Controller Interface.

Display & Keypad.Display & Keypad.

Analog Interface for Door Control. Analog Interface for Door Control.



FINGER PRINT SCANNERFINGER PRINT SCANNER

MODULEMODULE



Fingerprint image acquisition is consideredFingerprint image acquisition is considered

the most critical step of an automatedthe most critical step of an automated

fingerprint authentication system, as itfingerprint authentication system, as it

determines the final fingerprint imagedetermines the final fingerprint image

quality, which has drastic effects on thequality, which has drastic effects on the

overall system performance.overall system performance. There are different types of fingerprintThere are different types of fingerprint

readers on the market, but the basic ideareaders on the market, but the basic idea

behind each capture approach is tobehind each capture approach is tomeasure in some way the physicalmeasure in some way the physical

difference between ridges and valleys.difference between ridges and valleys.



All the proposed methods can be grouped All the proposed methods can be grouped

in two major families: solidin two major families: solid--state fingerprintstate fingerprintreaders and optical fingerprint readers.readers and optical fingerprint readers.

The procedure for capturing a fingerprintThe procedure for capturing a fingerprintusing a sensor consists of rolling or using a sensor consists of rolling or

touching with the finger onto a sensingtouching with the finger onto a sensing

area, which according to the physicalarea, which according to the physical

principle in use (capacitive, optical,principle in use (capacitive, optical,thermal, acoustic, etc.) captures thethermal, acoustic, etc.) captures the

difference between valleys and ridges.difference between valleys and ridges.



When a finger touches or When a finger touches or

rolls onto a surface, therolls onto a surface, theelastic skin deforms. Theelastic skin deforms. The

quantity and direction of quantity and direction of

the pressure applied bythe pressure applied by

the user, the skinthe user, the skin

conditions and theconditions and theprojection of an irregular projection of an irregular

3D object (the finger)3D object (the finger)

onto a 2D flat planeonto a 2D flat plane

introduce distortions,introduce distortions,noise and inconsistenciesnoise and inconsistencies

in the captured fingerprintin the captured fingerprint

image.image. 3D fingerprint



These problems result in inconsistent,These problems result in inconsistent,irreproducible and nonirreproducible and non--uniform contactsuniform contactsand, during each acquisition, their effectsand, during each acquisition, their effectson the same fingerprint results areon the same fingerprint results aredifferent and uncontrollable.different and uncontrollable.

The representation of the same fingerprintThe representation of the same fingerprintchanges every time the finger is placed onchanges every time the finger is placed onthe sensor plate, increasing the complexitythe sensor plate, increasing the complexityof the fingerprint matching, impairing theof the fingerprint matching, impairing the

system performance, and consequentlysystem performance, and consequentlylimiting the widespread use of thislimiting the widespread use of thisbiometric technology.biometric technology.



CMOS COLOR CAMERACMOS COLOR CAMERA

CMOS image sensor



An An activeactive--pixel sensor (APS), alsopixel sensor (APS), also

commonly writtencommonly written active pixel sensor, isactive pixel sensor, isanan image sensor image sensor consisting of consisting of

anan integrated circuitintegrated circuit containing an array of containing an array of

pixel sensors, each pixel containingpixel sensors, each pixel containing

aa photo detector photo detector and an active amplifier.and an active amplifier.

There are many types of active pixelThere are many types of active pixel

sensors including the CMOS APS usedsensors including the CMOS APS used

most commonly inmost commonly in cell phonecell phonecameras,cameras, web camerasweb cameras and inand in

somesome DSLRs.DSLRs.



Such an image sensor is produced bySuch an image sensor is produced by

aa CMOSCMOS process (and is hence alsoprocess (and is hence alsoknown as aknown as a CMOS sensor), and hasCMOS sensor), and hasemerged as an alternative toemerged as an alternative to chargecharge--coupled device (CCD) imager sensors.coupled device (CCD) imager sensors.

The termThe term active pixel sensor active pixel sensor is also usedis also usedto refer to the individual pixel sensor itself,to refer to the individual pixel sensor itself,as opposed to the image sensor;as opposed to the image sensor; in thatin thatcase the image sensor is sometimescase the image sensor is sometimes

called ancalled an active pixel sensor imager,active pixel sensor imager,activeactive--pixel image sensor, or pixel image sensor, or activeactive--pixelpixel--sensor (APS) imager.sensor (APS) imager.



Ethernet Controller Ethernet Controller



LPC 2131/32/34/36/38

The LPC2131/32/34/36/38 micro-controllers are

based on a 16/32-bit ARM7TDMI-S CPU with

real-time emulation and embedded trace

support, that combine the microcontroller with32kB, 64kB, 128kB, 256kB and 512kB of

embedded high-speed flash memory.

A 128-bit wide memory interface and a unique

accelerator architecture enable 32-bit code

execution at maximum clock rate.



Due to their tiny size and low power

consumption, these microcontrollers are ideal for applications where miniaturization is a keyrequirement, such as access control and point-of-sale.

With a wide range of serial communicationsinterfaces and on-chip SRAM options of 8 kB, 16kB, and 32 kB, they are very well suited for communication gateways and protocolconverters, soft modems, voice recognition andlow-end imaging, providing both large buffer sizeand high processing power.



Features

16/32-bit ARM7TDMI-S microcontroller ina tiny LQFP64 or HVQFN package.

8/16/32 kB of on-chip static RAM and32/64/128/256/512 kB of on-chip flashprogram memory.

128-bit wide interface/accelerator enables

high-speed 60 MHz operation. In-System Programming/In-Application

Programming (ISP/IAP) via on-chipbootloader software.



Single flash sector or full chip erase in 400

ms and programming of 256 B in 1 ms. Embedded ICE RT and Embedded Trace

interfaces offer real-time debugging with

the on-chip RealMonitor software and

high-speed tracing of instruction

execution.

Low power Real-time clock with

independent power and dedicated 32 kHzclock input.



Vectored interrupt controller with

configurable priorities and vector addresses.

Up to forty-seven 5 V tolerant generalpurpose I/O pins in tiny LQFP64 or

HVQFN package. Up to nine edge or level sensitive external

interrupt pins available.

60 MHz maximum CPU clock availablefrom programmable on-chip PLL withsettlingtime of 100 ms. Etc«.



THE ENDTHE END

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