Biometric Padlock

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Group 18

• Biometric Padlock

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The Biometric Padlock Team

• Jim Turner
• Jerry Guzolik
• Sasant Nuthakki
• Blaise Kapombe
• Nathan Harris

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What are the problems with existing padlocks?

• Forgotten / Lost / Stolen
• password
• key
• combination / code

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What is a biometric?

• A biometric is a unique, measurable
  characteristic or trait of a human being for
  automatically recognizing or verifying identity.

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Why the fingerprint biometric ?

• Fingerprints are very unique.
• statistically it is likely that 50 people on
  Earth share a fingerprint. http//biome
  tricaccess.com
• Easily collected
• Many commercial sensors available
• non-intrusive (Accepted by the public)

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How can implementing a biometric improve these
problems?

• No password to remember
• No key to carry with you
• Fingerprint is not easily stolen
• Nearly impossible to forget a finger at home

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Block Diagram
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User Interface and Operation
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Biometric PadlockDimensions and Weight
Size 6 x 2 x 5 L x W x H Weight Less than
5 lbs
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Locking Mechanism
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Veridicom Fingerprint Sensor

• Small size
• Low power consumption
• Finger sensing software

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• PC104 SBC
• Identical Architecture to the PC
• 104 Pins

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Why the PC104?

• Compatible with the standard PC
• The PC104 is the standard for embedded
  applications
• Meets requirements for reading from the sensor
• Meets requirements for running our software
• Small dimensions

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PC104

• Advantages
• Has nearly every function of a PC
• Develop software on PC
• Easily run DOS executables
• Can use any Processor
• Portable because of size

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PC104

• Processor
• Intel 80386 CPU
• Cheapest Available Processor
• Will run matching software efficiently

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PC104

• Memory
• 8MB memory chip
• sufficient memory for OS, template, and software

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PC104

• Interfacing
• Parallel ports used for
• input from sensor
• buttons
• LCD display

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PC104

• Specifications
• 5V (low power consumption)
• 0.6lbs (lightweight)
• (3.5 X 3.7 X 0.6) (compact)

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PC104
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• Battery Selection
• The following is a list batteries that are
  available to our design application
• NiCd (Nickel Cadmium)
• NiMH (Nickel Metal Hydride)
• Li-ion (Lithium Ion)
• SLA (Sealed Lead Acid)

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Battery Selection

• Battery research has led to two selections
  currently being considered by the design team.
• 1) Nickel Cadmium (NiCd)
• 2) Lithium Ion (Li-ion)

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Battery Selection

• Nickel Cadmium
• Pros
• Fast/Simple charge
• High Number of charge/discharge cycles
• Economically Priced
• Cons
• Subject to memory
• Has a high discharge rate

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Battery Selection

• Lithium Ion
• Pros
• Better manufacturing techniques will reduce
  price by 50 after the year 2000.
• Very low self discharge
• High Number of charge/discharge cycles
• Cons
• Expensive

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NiCd Rechargeable Battery Circuit
http//DesignNotes.com
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Li-ion Rechargeable Battery Circuit
http//www.epanorama.net
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Software

• Operating System MSDOS
• Programming Language
• C
• Veridicom Software Development kit(SDK)
• The SDK Components
• Image Suite (image capture and quality
  assessment)
• Verification Suite (minutiae extraction and
  matching)
• Low Level Control Suite
• Programs housed on PC104 Memory
• .exe, OS, Veridicom Software Supporting
  libraries (lt 8 M.B.)

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Flow Chart
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Q A
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Minutiae Points
Termination
Bifurcation