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SECOSecure Electronic
Communications for Offices
Cycle 1 Presentation
>
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!
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