Nurse Alert System

1
Nurse Alert System

• Group 217
• Shawn Carlson
• Tanner Seibel
• Advisor Professor Glower

2
Overview

• Project Sponsor Client
• Project Requirements
• Timeline
• Block Diagram
• Options Considered
• Budget

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Friendship, INC

• Non-profit Organization
• Help patients with developmental disabilities
• Located in Fargo, Grafton, and Park River
• Affiliated with Catholic Health Initiatives

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Requirements

• Comfortable
• Durable
• Easy to Wash
• Economical
• Degrees of Wetness
• Wireless sensor
• Light Indication
• 120 VAC Powered Tabletop Indicator
• Battery Powered Sensor Unit
• Safe

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Timeline
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Block Diagram
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Sensor
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SensorOption 1

• Dri-Sleeper
• Pros
• Comfortable
• Easily Washed/Sanitized
• Easy to Replace
• Cons
• Degrees of Wetness
• Cost

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SensorOption 2

• QProx QT114
• Pros
• Two Set Points
• Inexpensive
• Cons
• External Electrode
• Sensitivity

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SensorOption 3

• Humirel HS-1101 relative humidity sensor
• Pros
• Linear Output Voltage
• Fast De-saturation Time
• Cons
• Environment and Human Interference
• Operating Life

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Sensor Selected

• Dri-Sleeper
• All In One Package
• Flexible
• Easily Washed
• Commercially Manufactured
• Easily Replaced
• Reliable
• Easily Connected to Unit

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Microprocessor
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MicroprocessorOption 1

• Microchips 16F873
• Pros
• 16F87x Series Processor
• 4K Memory
• 22 I/O Pins
• Cons
• Cost
• Size

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MicroprocessorOption 2

• Microchips 16F88
• Pros
• NanoWatt Technology
• 4K Memory
• 16 I/O Pins
• Cons
• Programming Changes

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MicroprocessorOption 3

• Microchips 12F675
• Pros
• Cost
• 1K Memory
• 6 I/O Pins
• Cons
• Might not fulfill requirements
• Programming Changes

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Wireless Transmission
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Wireless TransmissionOption 1

• Linx LC Series RF Module
• Pros
• Size
• Power Consumption
• Cons
• Limited Setup Configurations
• One-way Communication

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Wireless TransmissionOption 2

• Microchip rfPIC12C509AG/AF
• Pros
• Versatile
• Cost
• Cons
• Programming Required
• Complexity

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Wireless TransmissionOption 3

• RFM DR3000-2
• Pros
• Bi-Directional Communication
• Compact
• Low Power Consumption
• Cons
• Operating Voltage
• External Components Required

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Wireless TransmissionSelection

• Linx LC Series RF Module
• Inexpensive
• Easy to Interface
• Successful Past History
• Small Size
• Low Power Consumption

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Power Supplies
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Sensor Unit Power SupplyOption 1

• Two AAA Size Power Cells
• Pros
• Highest Battery Capacity
• Inexpensive and Readily Available
• Cons
• Size
• DC/DC Converter

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Sensor Unit Power SupplyOption 2

• 9 Volt Battery
• Pros
• High Battery Capacity
• Inexpensive and Readily Available
• Cons
• Size
• DC/DC Converter

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Sensor Unit Power SupplyOption 3

• 3 Volt Coin Cell
• Pros
• Small
• Constant Output Voltage
• Cons
• Cost
• Availability

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Sensor Unit Power SupplySelection

• 3 Volt Coin Cell
• Size
• Constant Battery Output
• Capacity

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Tabletop Indicator Power SupplyOption 1

• Custom Built Power Supply
• Pros
• Tailored to Exact Requirements
• Experience
• Cons
• Safety
• Cost

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Tabletop Indicator Power SupplyOption 2

• Wall Mount Power Supply
• Pros
• Safe
• Cost
• Cons
• Limited Output

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Tabletop Indicator Power SupplySelection

• Wall Mount Power Supply
• One Output Voltage Required
• Safety
• Cost
• Ease of Use

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Budget
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Questions?