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Di gital Door Assistant (DDA). Senior Design December 11, 2001. DDA Design Team Senior Design Group 11. Technical Advisor: Professor Hong Man. Group Leader : David Lababera. Group Members: Cindy Budhu Brian Iovino Joseph Rafaniello. Bioscrypt Inc.

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Di gital door assistant dda l.jpg
Digital Door Assistant (DDA)

Senior Design

December 11, 2001


Dda design team senior design group 11 l.jpg
DDA Design Team Senior Design Group 11

  • Technical Advisor:

    • Professor Hong Man

  • Group Leader:

    • David Lababera

  • Group Members:

    • Cindy Budhu

    • Brian Iovino

    • Joseph Rafaniello


Bioscrypt l.jpg

Bioscrypt Inc.

5000 Van Nuys Blvd., Suite 300Sherman Oaks, CA U.S.A. 91403

Contact: Christopher Crump

Bioscrypt

TM

We would like to give a special thanks to Bioscrypt™ for donating the Software Development Kit (SDK), OEM support, and other meaningful advice.


Abstract l.jpg

Lock and Key System is archaic

New technologies, either incorporating memory or biometrics, can help security move beyond the antiquated system of lock and key.

Memorization adds security

But passwords can be forgotten, shared, or observed

Abstract

  • Most effective security is Biometrics

    • Biometric technology is a way to achieve fast and user-friendly authentication with a high level of accuracy


What is biometrics l.jpg
What is Biometrics?

  • Biometrics is an automated method of recognizing a person based on a physiological or behavioral characteristic.

  • It can be used to uniquely identify one person from another.

    • Includes fingerprints, speech, face, retina, iris, handwritten signature, hand geometry, and wrist veins

    • By using an attribute of the body, security is improved because there is no room for human error

  • Using Biometrics security will increase system effectiveness.


Design objectives l.jpg
Design Objectives

  • The Digital Door Assistant will:

    • Provide a convenient, reliable, and secure alternative to archaic key-entry door systems

    • Utilize accurate fingerprint identification in order to allow access for authorized users

    • Perform as an embedded system geared for residential use


Simple design l.jpg
Simple Design

Biometric

Device

Control

Doorbell


Choice of biometrics l.jpg

Accuracy

Integrity

Ease of Use

Resistance to imitation attacks

Template

Size (bytes)

Cost

Iris Scan

High

High

Medium -

High

High

512

High

Retinal Scan

High

High

Low

High

96

High

Fingerprint

Medium

Medium

Medium

Low -

Medium

250-1000

Low

Hand Geometry

Medium

Medium

High

High

9

High

Facial Recognition

Low -

Medium

Low -

Medium

High

Low -

Medium

1300

Low - High

Signature Dynamics

Low

Low

High

Medium

300-1500

Low

Voice Dynamics

Low

Low

Medium -

High

Medium

2000-10,000

Low

Choice of Biometrics


Choice of fingerprint device l.jpg
Choice of Fingerprint Device

  • The MV1200 fingerprint scanner:

    • Unlike many other scanners, is made for embedded devices

    • Is capable of interfacing with a microcontroller

    • Contains an accurate identification algorithm onboard

    • Allows for administration over templates (addition and deletion)


Design with mv1200 l.jpg
Design with MV1200

MV1200 Fingerprint Scanner

Biometric

Device

Control

Doorbell


Choice of microcontroller l.jpg
Choice of Microcontroller

  • Most simple microcontrollers, like the MC68HC11A8, will have the functionality we need for our design

  • Documentation from Bioscrypt will finalize microcontroller decision


Design with mv1200 and microcontroller l.jpg
Design with MV1200 and Microcontroller

MC68HC11A8

MV1200 Fingerprint Scanner

Biometric

Device

Control

Doorbell


Mc68hc11a8 microcontroller l.jpg
MC68HC11A8 Microcontroller

  • Available Ports

    • 5 needed

    • A-E available

  • Available Memory

    • 8k ROM

    • 256 bytes RAM

    • 512 bytes EEPROM


Mv1200 fingerprint scanner l.jpg
MV1200 Fingerprint Scanner

  • Power:

  • Data Communication:


Other devices l.jpg
Other Devices

  • Doorbell/Lock

    • Activates based on output from microcontroller

    • Buffered data prevents feedback

      Insert Diagram here…..


Project flowchart l.jpg
Project Flowchart

Wait

Is Person

Enrolled?

Delay 5

Seconds

Unlock

Door

Yes

No

Ring

Doorbell

Lock

Door


Limitations l.jpg
Limitations

  • Power Failure

    • A backup system is needed

    • Extensive testing is required

  • Weather conditions such as rain

    • Physical modification to packaging



Target customer l.jpg
Target Customer

  • Suburban families

  • Include as a package in new home constructions

    • 1,200,000 new homes in 2000

  • Direct mailing to electrical contractors

  • Trade show product promotion


Cost estimation l.jpg
Cost Estimation

  • Initial 5% of market share

  • Estimated peak of 25% of market share in year 6


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Product Cost/Price

  • Material, fixed and variable costs

  • DDA sale price





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Conclusion

  • This project will be completed successfully by April 2002

    • Additional functionality will be added if time permits

    • Possible mechanical design changes



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