PRELIMINARY DESIGN REVIEW

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DESIGN REVIEW
GUARDIAN 2000
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SENIOR DESIGN TEAM
Design Team Leader Ted Anderson Design Team
Members Cedric George, Dale Pittman
Faculty Advisor Dr. Randolph Follett
Project Advisor Dr. Gary McFadyen T. K. Martin
Center
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PROBLEM STATEMENT

• Hearing-impaired employee
• Unable to hear forklift due to his impairment
• Creates an unsafe working condition

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OBJECTIVES

• Enhance safety conditions
• Develop assistive technology
• Develop practical and cost effective solution

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DESIGN CONSTRAINTS

• Safety
• Monitoring System
• Power Specification

• Durability
• Physical Packaging
• Cost

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Layout of Project Grid
 
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Layout of Project Grid
 
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Layout of Project Grid
 
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Guardian 2000 Overview
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Hardware
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Monitoring System
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Monitoring System
12 Volt Battery Tester
Transmitting Photo Diode
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CALCULATIONS
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CALCULATIONS
Fixed gain inverted amplifier
Fixed gain non-inverted amplifier
Voltage Comparison
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Transmitter Circuit Design
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PCB for Transmitter
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Monitoring System Simulation
Frequency
3 kHz output from the Transmitter
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Monitoring System
Infrared Signal
Sensor
Strobe Light
Indicators
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Receiver Circuit Design
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PCB for Receiver
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Monitoring System Simulation
Receiver detecting the transmitter signal
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Monitoring System Simulation
Output indicates an unbroken beam
Receiver Output
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Monitoring System Simulation
Output indicates broken beam !!!!
Transmitter Output
Receiver Output
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Cost/Availability Factors
Estimated Cost 200.00 6.00 5.00
5.00 15.00 25.00 ------------------- Total
256

• Transmitter and Receiver
• Voltage Regulator and Relay
• 555 Timer and 74123
• Push Button and 7432
• Package items
• Other components

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FUTURE WORK

• Test System
• Proximity System

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SUMMARY

• Problem
• Solution
• Approach

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DEMONSTRATION
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Layout of Project Grid
 
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Environmental Problems

• What type of environmental problems may
• affect the sensors?
• Dust
• Moisture
• Smoke

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QuestionAnswers
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Layout of Project Grid
 
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Pager and Test System
Pager Unit
Receiver
Test Button
Vibrating Motor
Transmitter
Receiver (Detector System)