صفحه 1:
پنام خدا
کاربرد کامپیوتر در مهندسی صنلیع (21774(
نیمسال دوم تحصيلي 1385-1386 و
یکشنبه ها و سه شنبه ها 10:30-9:00
Lecture 7
AIDC
صفحه 2:
Bar Codes &
"1 Automatic Data Capture
صفحه 3:
۳۱ ۱ نب
IDENTIFICATION & DATA
CAPTURE
= DEFINITION:
= A computerized technology that allows real-
time data to be collected accurately and
rapidly to create the potential for improving
performance, productivity, and profitability
= Automatic Data Capture
" Automatic Data Collection
= Automatic Identification
QUESTION: Why should an IE know AIDC?
صفحه 4:
THE NEED
=" Demand for AIDC has “Exploded”
= Most training in AIDC occurs after
graduation
صفحه 5:
AIDC Technology Families
= Optical = Contact
™ Bar Codes 5 pen Based Systems
= Two Dimensional = Contact Buttons
BC
™ OCR (Optical Character 5 Touch screens
Recognition) = Biometrics
« Machine Vision ™ Voice Recognition
= Wireless = Fingerprint Geometry
= RFDC = Hand Geometry
™ RFID (tags) ™ Retinal Eye Scan
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صفحه 6:
4 AIDC Technology Families
=" Cards
™ Magnetic Stripe (Credit cards, 28 words, 256 bytes)
™ Smart/Chip Cards (65000 bytes)
™ Magnetic Ink Character Recognition (MICR)
= Optical (Laser) Cards (1.6 mB)
صفحه 7:
QUESTION
=" WHEN SHOULD AIDC BE APPLIED?
صفحه 8:
۳۹ Why AIDC?
= Lower Labor Costs
= Reduced Errors
™ Reduced process errors
™ Reduced Shipping Errors
® Accurate Inventory Levels
= Shorter Cycle Times
صفحه 9:
oc BENEFITS
ی ۲ 22
MANUAL: = و
1 ۷
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AUTOMATIC 1 ال
صفحه 10:
EVALUATING AIDC
TECHNOLOGIES
SUBSTITUTION ERROR RATE (SER)
Probability that a given character contains an error
e.g., 1 error in million
FIRST READ RATE (FRR)
Probability that an attempt to capture data will result
in data being captured on the first attempt
Expressed asa %
صفحه 11:
4 EXERCISES
= What is the number of errors to be expected
in an application given number of characters
entered is 53 million (53,000,000) and the
SER is .00001%?
= If 1000 labels are to be scanned using a
system with a 75% FRR, how many scanning
attempts will be required?
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صفحه 12:
oc Technologies
= Bar Codes
=" Wireless Data Capture
= Automatic Speech Recognition
صفحه 13:
_ bar Codes
الا
= Most Widespread AIDC Technology
= Material or People Tracking
= Database Key
صفحه 14:
Typical Applications
= Shop Floor Lot © Quay Oval
Tracking © bebo Ts
= WIP Tracking ٠١ سه
= MRP/ERP 7 ene
= Inventory 70
Management © bere
= Shipping/ © تسس
Receiving
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صفحه 15:
15
4 BAR CODES
= Advantages
= Low cost printing
= Wide variety printing techniques
= Customized symbol
= Low SER (<1 error in 1 million)
= Disadvantages
= Not good in hazardous environments
= 1-D symbols hold little data
= Data cannot be changed
صفحه 16:
Wireless Data Capture
--RFDC--
4
© Pontobl Tateracive Bar Code Readers
© Oat sed book te host cowputer via Rade امین
صفحه 17:
4 RFDC Applications
= Warehouse
™ Picking & Placing Items
= Manufacturing
™ Shipping & Receiving items
™ Parts Tracking
= Retail
™ Tracking items on Shelves
صفحه 18:
RFDC Advantages
Portability
Ease of Creation
Expense
Prohibitions
New Capabilities
صفحه 19:
Wireless Data Capture
--RFID--
= Retrieve data via radio signal from a transponder (tag) attached to item
= Used when
«۶ Distance impedes optical techniques
® Obtrusiveness is an issue
® Harsh Environment
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صفحه 20:
Typical Applications
۱ = Tracking Shipping Containers on
high speed sortation systems
= Access Control
= Parts/Pallet Tracking
= Patient Tracking
= Shoplifting Prevention
™ Libraries
= Department Stores
™ Jewelry Stores
صفحه 21:
معديق
= Advantages
" Label does not need to be visible
= Works well in hazardous
environments
=" Disadvantages
= Expensive Labeling
" Requires a Site Survey
صفحه 22:
Automatic Speech
+ Recognition
۱
Digitizes vocal track
Recognizes through Pattern Matching
Used for Hands-free, Eyes-Free Tasks
Speech Independent vs. Speech Dependent Systems
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صفحه 23:
Typical Applications
Automatic Generation of Work
Measurement Standards
Recording defects while performing
visual inspections
Overcoming Learning Disabilities
Overcoming Physical Disabilities
Making Airline Reservations
Baggage/Shipment Loading
صفحه 24:
Automatic Speech
Recognition
= Advantages:
= “Hands-off” operation
= Portable systems require no wires
= Disadvantages:
= Slow (20 seconds)
= High error rates
= Training required
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