SECOSecure Electronic

Communications for Offices

Cycle 1 Presentation

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Team TwoDella Killingsworth

Hassan ElrhazouaniStephanie Smith

Matthew ThompsonJimmie Lyn Jackson

Overview

Cycle 1 Accomplishments Cycle 1 Obstacles Box Design Changes Fingerprint Scanner Interface Locking Mechanism Design Motion Detector System Cycle 2 Goals

Cycle 1 Accomplishments

Individual hardware components for one complete mailbox

A working motion detector to identify mail

Lock opens and closes with different input signals

Lock and motion detector have been tested with sbRIO and software

Initial programming to facilitate overall control and component communication

Cycle 1 Obstacles Development sbRIO did not function properly

and actual sbRIO delayed until mid-October› Replacement sbRIO is scheduled to arrive this

week IR Transmitter did not have a strong signal

for motion detector› Found a different transmitter that provides a

better LED Fingerprint scanner has a complicated

datasheet and has been tedious to wire› Care is being taken to fully understand the

functionality of the scanner board and crimping terminals were purchased for ease of connection

Box Design Changes Made of Plexiglas Mailbox dimensions 13 3/4” x 11 1/8” x 7 3/4” Smaller door that folds down Mail slot above door Lock and motion detector above door

Interface between sbRIO and FIM 5360-LV

9 pin connection required for operation of fingerprint scanner

Interface between sbRIO and FIM 5360-LV

Default input and output settings ideal for this application

Interface between sbRIO and FIM 5360-LV

No complete serial bus is available from manufacturer for connection

Connection can be constructedCrimp Housing

Crimp Terminal

Interface between sbRIO and FIM 5360-LV Better option is to

salvage already-crimped wires from another crimp housing of different size and plug them into 9-pin housing

Interface between sbRIO and FIM 5360-LV

Implemented recommended circuitry for interface between 9-pin connector and sbRIO

Locking Mechanism Hardware BJT Switch

› High signal from sbRIO 12V across lock = OPEN

› No signal from sbRIO 0V across lock = CLOSED

Locking Mechanism SoftwareLocking Mechanism LabVIEW FPGA Code

Motion Detector Hardware

Emitter sends infrared light

Detector collects infrared light

Voltage measured after detector

No blockage, Vo = 0.2V

Blockage, Vo = 4V

Motion Detector Software

Motion Detector LabVIEW FPGA Code

Projected Cycle 2 Goals

Get sbRIO here and operating Secure mailbox built Lock override in place Fingerprint scanner working properly Email system setup to send email when

mail is placed in mailbox SECO should be fully functional!

Demo!