POS Cart

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RFID Enhanced Shopping Cart
Matthew Breeden Stan Komsky Brendan Leahy Todd
Kamon Ji Hwan Kim
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Problem Statement

• Rising internet retailers
• Lack of available information
• Need of sales associate
• Advertising of products

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Project Overview

• Direct consumer purchases
• Educate consumer automatically
• Earn profit after first year
• Prototype cost of 2500
• Production unit cost of 2000

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Technical Accomplishments

• Integrated RFID system with computer
• Implemented software interface
• Adjusted for reliable item detection
• Effectively shielded the cart
• Supplies a web-based experience

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Project Demonstration
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Find Item
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Store Location
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Weekly Specials
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Top Sellers
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Help
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Software Flowchart
Scan RFID
Any Items in cart past time period?
Remove Item from cart list
yes
no
ValidRFID?
no
yes
Log Item and Update 'View Cart Screen'
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Connection Overview
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UHF RF Antenna

• SamSYS MP9320
• Range 860-960 MHz
• Power130 dBmW
• Distance 22 inches
• Angle 70º

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Mounted Antennas
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RF Shielding

• 1/4 Galvanized zinc coated mesh
• Attenuates RF signals
• Surface Area 3186 in2

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Technical Difficulties

• Antenna power adjustment
• Antenna signal area
• Unable to use eBox 2300
• Software issues with zero tags
• Time Constraints
• Back-end wireless server
• Utilizing a SQL database

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Project Schedule

• Integrated RFID Nov 15
• Constructed cart Nov 23
• Completed user interface Dec 1

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Future Enhancements

• Utilize a different computer
• Use a RFID reader with a single custom antenna
• Integrate a wireless database server
• Implement a rechargeable power source

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Business Concerns

• Ideally suited for
• Electronics superstores (Frys, Best Buy)?
• Electronics specialty stores (MicroCenter)?
• Initial implementation cost
• Overall price feasibility

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Questions?