Group #18 Biometric Padlock

The Biometric Padlock Team Jim Turner Jerry Guzolik Sasant Nuthakki Blaise Kapombe Nathan Harris

What are the problems with existing padlocks? Forgotten / Lost / Stolen – password – key – combination / code

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

Why the fingerprint biometric ? Fingerprints are very unique. “… statistically it is likely that 50 people on Earth share a fingerprint.” Easily collected Many commercial sensors available non-intrusive (Accepted by the public)

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

Block Diagram

User Interface and Operation

Biometric Padlock Dimensions and Weight Size:6” x 2” x 5” L x W x H Weight:Less than 5 lbs

Locking Mechanism

Veridicom Fingerprint Sensor Small size Low power consumption Finger sensing software

PC104 SBC Identical Architecture to the PC 104 Pins

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

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

PC104 Processor Intel CPU Cheapest Available Processor Will run matching software efficiently

PC104 Memory 8MB memory chip sufficient memory for OS, template, and software

PC104 Interfacing Parallel ports used for: – input from sensor – buttons – LCD display

PC104 Specifications +5V(low power consumption) 0.6lbs (lightweight) (3.5” X 3.7” X 0.6”)(compact)

PC104

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)

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

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

NiCd Rechargeable Battery Circuit “

Li-ion Rechargeable Battery Circuit “

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 (< 8 M.B.)

Flow Chart

Q & A

Minutiae Points Bifurcation Termination