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CIM LAB B4 PArt 2 > Chapter 12 > Flashcards

Chapter 12 Flashcards

1
Q

What does AIDC stand for?

A

Automatic identification and Data Capture-technologies that provide direct entry of data into a computer or other microprocessor-controlled system without using a keyboard. Many require no human involvement

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2
Q

4 Applications of AIDC in manufacturing

A
  1. Monitoring status
  2. WIP
  3. machine utilization
  4. worker attendence
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3
Q

Applications of AIDC in material handling

A
  1. Shipping and rec
  2. storage
  3. sortation
  4. order picking
  5. kitting of parts for assembly
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4
Q

Drawbacks of manual data handling

A
  1. More Errors
  2. More time
  3. More labor cost
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5
Q

All AIDC consist of three principal components which also comprise the sequential steps in AIDC

A
  1. Data Encoder-characters are translated into machine-readable code
  2. Machine reader or scanner-device that reads encoded data, and converts it usually into electric analog signal
  3. Data Decoder-component transforms electrical signal into digital data and back to alphanumeric charcyters
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6
Q

6 categories of AIDC technologies

A
  1. Optical
  2. Electromagnetic
  3. Magnetic
  4. Smart Cart
  5. Touch techniques
  6. Biometric
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7
Q

Common applications of AIDC technologies

A
  1. Receiving
  2. Shipping
  3. Order Picking
  4. Finished goods storage
  5. Manufacturing processing
  6. WIP storage
  7. Assembly
  8. sortation
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8
Q

Reasons for using AIDC

A
  1. Data accuracy
  2. timeliness
  3. labor reduction
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9
Q

2 parameters to measure AIDC errors

A
  1. First Read Rate FRR-probability of successfully reading data first time
  2. Substitution error rate-SER-frequency with which scanner incorrectly reads encoded char as some other char.
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10
Q

2 bar code types

A
  1. Linear-linear sweep of scanner.2 forms are width and height modulated
  2. Two dimensional-encoded data must be read in both directions
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11
Q

2 types of linear bar code tech

A
  1. Width modulated
  2. Height modulated-not used that much

Width modulated are like morse bar code

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12
Q

UPC

A

Universal Product code

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13
Q

The bar code standard adopted by car makers, DOD, and other manufacturing services

A

Code 39
also known as AIM USD-2
Why is it 39? It’s because there are 9 elements(bars and spaces) and 3 elements are wide

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14
Q

How are bar code readers classified?

A
  1. Contact

2. Noncontact

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15
Q

Advantages of 2-d symbol schemes

A
  1. Store much greater amounts of data

2. Higher densities

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16
Q

2-d symbologies divide into two basic types

A
  1. Stacked bar codes-can hold greater data

2. Matrix symbologies

17
Q

Problems with stacked bar codes

A
  1. Keeping track of the different rows during scanning
  2. dealing with scanning swaths that cross between rows
  3. Detecting and correcting localized errors
18
Q

what does RFID stand for

A

Radio Frequency Identification technology

Its replacing bar codes

19
Q

How does RFID work

A

a tag or label of data is attached to item. There is an IC ship and a small antennae

Communication is done through a 2 way transponder

2 types-active and passive

20
Q

Principal applications of RFID

A
  1. inventory management
  2. supply chain management
  3. Tracking systems
  4. Warehouse control
  5. location ID
  6. WIP tracking
21
Q

Advantages of RFID

A
  1. ID does not depend on physical contact
  2. more data can be contained
  3. data can be altered for reuse of tag

disadvantages is that its more expensive

22
Q

what does OCR stand for

A

Optical character recognition-special designed alpha numeric that are machine readable by an optical reading device

23
Q

What are main applications of machine vision

A
  1. automated inspection tasks
  2. read 2-d matrix symbols
  3. used for stacked bar codes
24
Q

Why are magnetic strips not widely used

A
  1. needs near-contact scanning
  2. lower scanning rates
  3. Higher error rates
25
Q

Relative advantages of bar codes over RFID

A

1.Low cost

26
Q

advantages of RFID over barcode

A
  1. Reusable
  2. Read-Write
  3. More durable
  4. More data contained
  5. ID does not depend on physical contact

CIM LAB B4 PArt 2 (14 decks)

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