Digital Door Assistant (DDA)

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Digital Door Assistant (DDA)
Senior Design December 11, 2001
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DDA Design Team Senior Design Group 11

• Technical Advisor
• Professor Hong Man

• Group Leader
• David Lababera

• Group Members
• Cindy Budhu
• Brian Iovino
• Joseph Rafaniello

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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.
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Abstract

• 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

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

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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.

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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

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Simple Design
Biometric Device
Control
Doorbell
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Choice of Biometrics
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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)

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Design with MV1200
Biometric Device
Control
Doorbell
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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

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Design with MV1200 and Microcontroller
MV1200 Fingerprint Scanner
Biometric Device
Control
Doorbell
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MC68HC11A8 Microcontroller

• Available Ports
• 5 needed
• A-E available
• Available Memory
• 8k ROM
• 256 bytes RAM
• 512 bytes EEPROM

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MV1200 Fingerprint Scanner

• Power
• Data Communication

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Other Devices

• Doorbell/Lock
• Activates based on output from microcontroller
• Buffered data prevents feedback
• Insert Diagram here..

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Project Flowchart
Wait
Is Person Enrolled?
Delay 5 Seconds
Unlock Door
Yes
No
Ring Doorbell
Lock Door
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Limitations

• Power Failure
• A backup system is needed
• Extensive testing is required

• Weather conditions such as rain
• Physical modification to packaging

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Project Schedule
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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

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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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Project Budget
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Break Even Analysis
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Venture Funding
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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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Any Questions?