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Smart CartMECH 548 V ehicle Design ProjectProgress Presentation

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Agenda

Introduction

Attributes, Criteria and Targets

Architectural Enablers

Performance Enablers

Project ManagementCosts

Impacts

References

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Motorized shopping cart with integrated self-checkout

station

Mobility integration

Enhance the shopping experience

Introduction

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Motorized carts

People w ith disabilities o r

any sort of mobility difficulty

Three or four wheels

250 to 750 lbs.

$500 to $1500

Manufacturers: Amigo, Pride,

Sierra, Shoprider, MartCart,

Spitre

Self checkout Large, self-standing units. $25,000 Large retailers i nstall 5 -15

units Manufacturers: FUJITSU,

IBM, NCR, ECRS

State of the a rt

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Supermarkets market data

MarketProduct users

Customers: Main supermarket andgrocery st ores c hains

Final Client: Ordinary shoppers

$ 620 Bi in sales ; 1.9% margin [2013]

3.4 Mi employees in 35,000 st ores

$ 137 sales per l abor hour

Top ten retailers account for 35 % of

the stores an d 70% of sales

Low margin, labor-intensive

Labor as ~ 20 % of COGS

FMI Report 2013; The Reinvestment Fund

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Self-checkout benets

Market Acceptance of selfut

52% of the consumers lean towardautomated service

61% of consumers would be willing

to sh op at a fully automated self-

service st ore

65% of the re spondents want self-

service opti on while sh opping to

avoid queues and delays

35% of the t otal sales in storeswith systems

Checkout times reduced 40%

Customers move through

checkout lanes increased 2 0%

FMI Grocery Trends 2012, Booz&Co, Nielsen

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Attribute Criteria Target

Safety

Speed Not to exceed 3 mph

Stability Support at least 500 lbs

Ergonomic Comfortable driving position

ManeuverabilityMovement

Capable of forward and backward

movement

Turning Able to navigate set obstacle course Affordability Cost $600 or less

Longevity Battery Life 1 hour runtime

ConvenienceSelf Scan Recognize object scanned

Security Able to recognize that the correct items

are i n the ba sket

Attributes, Criteria and Targets

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Environment

Design Concept

Components and subsystems

Structure

Powertrain

Self Check Out

Archictetural Enablers

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Design

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Rear Drive Assembly

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Electronics

Simple an d interactive user i nterface

Bluetooth connection between barcode scanner

and database u sing portable devices

Barcodescanner Getblue Bluetooth MS Excel

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Bill of Materials (BOM)

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Performance Enablers

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R

Vo

w

R

Gear 3

Drive Wheel(Rolling w/o Slip)

Gear 2

Gear 1(Attached to

Wheel)

7.82 4.67

Gear Calculations

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14 Tooth 60 Tooth

4.28 Gear R atio

Targeted: 36.5 Gear R atio

Current Selection: 33.4

86 Tooth11 Tooth

7.81 Gear R atio

Current selection is a com promise ba sed on available off

the sh elf parts

Limiting factor t o a vailability is b ore si ze to t shaft

and common size chain between both sprockets

Gear Calculations

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550 lbf load applied to theplatform

Fixed constraint to t he a xlecontact points

Displacement of 0.0078in andmax st ress of 10647psi

FEA Analysis - Chassis

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225 lbf load applied to the a xle location with a xed constraint on

the ou tside su rface of the wheel

Resultant stress was 77 45.03psi and resul tant displacement was .

0024in

FEA Analysis - Wheel

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Project Management

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Consumers (shoppers)

- Quicker shopp ing times

- Easier bu dgeting

- Fun experience

Environmental- Increasing energy cost

Costumers (markets)- Lower over head cost

- New loss pre vention procedure

- Opportunity for di rect marketing to c onsumers

Ethical Considerations

- Consumer privacy*Complies with ASME code of ethics

Impacts

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http://mentaloss.com/article/26470/brief-history%E2%80%94and-future%E2%80%94-shopping-cart Accessed in 10/08/2014

http://www.scootarou nd.com/blog/the-history-of-the-mobility-scooter - Accessed in 13/08/2014

https://nrf.com/news/reta il-tren ds/self-service-is-king-% E2%80%A6 Accessed in 10/08/2014

Understanding the Grocery Industry, The Reinvestment Fund, 09/30/2011 Supermarket Facts, Food Market Institute (FMI), 2013.

References

http://mentalfloss.com/article/26470/brief-history%E2%80%94and-future%E2%80%94-shopping-carthttp://mentalfloss.com/article/26470/brief-history%E2%80%94and-future%E2%80%94-shopping-carthttp://www.scootaround.com/blog/the-history-of-the-mobility-scooterhttps://nrf.com/news/retail-trends/self-service-is-king-%E2%80%A6https://nrf.com/news/retail-trends/self-service-is-king-%E2%80%A6https://nrf.com/news/retail-trends/self-service-is-king-%E2%80%A6https://nrf.com/news/retail-trends/self-service-is-king-%E2%80%A6https://nrf.com/news/retail-trends/self-service-is-king-%E2%80%A6https://nrf.com/news/retail-trends/self-service-is-king-%E2%80%A6http://www.scootaround.com/blog/the-history-of-the-mobility-scooterhttp://mentalfloss.com/article/26470/brief-history%E2%80%94and-future%E2%80%94-shopping-carthttp://mentalfloss.com/article/26470/brief-history%E2%80%94and-future%E2%80%94-shopping-cart