Automatic Data Collection Applications in Industrial Engineering: Bar Codes, Wireless Systems, Pen B

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Automatic Data Collection Applications in
Industrial EngineeringBar Codes, Wireless
Systems, Pen Based Computing and More

• Dr. David Porter
• Oregon State University
• david.porter_at_orst.edu
• http//www.ie.orst.edu

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Outline

• Introduction
• Bar Codes
• Voice Recognition
• How to Learn More About AIDC
• Questions

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Automatic Identification and Data Capture (AIDC)

• Computerized technology that allows real-time
  data to be collected accurately and rapidly
• Creates the potential for improving
• Performance
• Productivity
• Profitability

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Why Should and IE Know AIDC?

• Demand for AIDC has exploded
• U.S. is predominant leader
• Most training occurs after graduation

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Why Use AIDC?

• Lower Labor Costs
• Reduce Errors
• Accurate Inventory Levels
• Shorter Cycle Times

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AIDC Technology Families

• Optical
• Bar Codes
• Two Dimensional BC
• OCR
• Machine Vision
• Wireless
• RFDC
• RFID

• Contact
• Pen-Based Systems
• Contact Buttons
• Touch Screens
• Biometrics
• Voice Recognition
• Fingerprint Geometry
• Hand Geometry
• Retinal Eye Scan

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Bar Codes
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Bar Codes

• Most Widespread AIDC Technology
• Track Material or People
• Database Key
• Involves
• Symbologies
• Printers
• Readers

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Bar Codes

• Advantages
• Low printing costs
• Wide variety of printing techniques
• Customized symbols
• Low error rate
• Disadvantages
• Not good in hazardous environments
• Symbols can not hold a lot of data
• Data cannot be changed

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Typical Bar Code Applications

• Library
• Inventory Control
• WIP Tracking
• Receiving
• Shipping

• Retail
• Warehousing
• Health Care
• Labor Tracking

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Selecting a Bar Code Symbology

• Physical area available for symbol
• Type of data to be encoded
• Alpha
• Numeric
• Alphanumeric
• Type of Printer
• Standards to which must be adhered

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1-D Symbologies

• Universal Product Code (UPC)
• Code 39
• Code 128

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2-D Symbologies

• To encode and print the largest amount of machine
  readable information in the smallest possible
  area
• Examples
• PDF 417
• Data Matrix
• Maxi Code

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Recent Developments

• Invisible Bar Codes

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Bar Code Printers

• Dot Matrix
• Direct Thermal
• Chemical reaction by heat
• Thermal transfer
• Use special ribbon
• Ink Jet
• Laser

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Readers -- Types

• Hand held
• Manual scanning operations
• Most common type
• Fixed mount, fixed beam
• Fixed mount, moving beam
• Scanners in general have different read ranges

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Readers -- Types
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Readers Modes of Operation
Wireless
Wired
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Bar Code Application
1234561001
DS1
Current Optical
Stripe Area on
Control Cards
Two Fingerprints
Picture
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Voice
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Voice

• Advantages
• Hands-Off operation
• Portable systems require no wires
• Disadvantages
• Slow
• High Substitution Error Rate (SER)
• Training required

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Speech RecognitionFuture Trends

• Continuous Speech
• Larger Vocabulary Size
• Speech Independence at lower cost

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Voice Applications
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Talkman Constructors
NODES
Ask a question
LINKS
Contain valid node responses Direct the flow of
the program
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Types of Structures

• SEQUENCE
• BRANCH
• LOOP

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Sequence Structure
Node3
Node2
Node1
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Sequence Structure
Small Medium Large
Blue Red Green
THANKS
COLOR
SIZE
What size do you want?
What color do you want?
Thank you. I will order this for you.
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Branch Structure
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Branch Structure
Paper
Plastic
Would you like paper or plastic bags for your
groceries?
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Loop Structure
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Loop Structure
Peas Ice Cream Tomatoes
BAG
Thats all
Would you like paper or plastic bags for your
groceries?
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Steps to Create a Talkman App

• Determine prompts and responses
• Create the task diagram
• Create an output data record (ODR)
• Check the task for errors
• Test the task using a Talkman terminal

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IME Pretty Good Pizza ShopTask Diagram
Nocrust
Crustyn
Quantity
Size
Crustyn
Start
Topping
Respons
Really
Thanks
Finish
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How to Learn More About AIDC

• http//www.aimglobal.org
• http//www.autoid.org
• Palmer, R. C., The Bar Code Book, (Helmers
  Peterborough, NH), 1991

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QUESTIONS??