barcode presentation11

8/8/2019 barcode presentation11

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SEMINAR ON

BARCODE

PRESENTED BY

SRIDHAR KEDAR MANDI

BME-IV ; ROLL NO-000511201004


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What is barcode?

they are just a different way of encoding numbers and letters by using

a combination of bars and spaces of

varying widths.


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HOW BARCODES ARE

READ?

Barcodes are read by

sweeping a small spot of

light across the printedbarcode symbol. Your eyes

only see a thin red line

emitted from the laser

scanner


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TERMINOLOGY

BAR- The darker, non reflective element of a

Bar Code

SPACE-The lighter, reflective element of a Bar Code

INTER-CHARACTER GAP-The space between the bars or spaces

STARTCHARACTER-A special pattern of bars and spaces used to

identify the beginning of a Bar Code symbol

STOP CHARACTER-A special pattern of bars and spaces used to

identify the end of a Bar Code symbol

CHECK DIGIT- A calculated character included within the Bar Code

for error detection


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SYMBOLOGY: AN

EASY DEFINITION

Symbology is considered a language in barcode

technology.The actual technique of encoding the

bars and spaces a number of technical

specifications or characteristics define and

separate one symbology from another.


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SYMBOLOGIES

1.Continuous code and discreate code

2. Two-width vs. many-width

3.Quiet zone,start /stop character and check

digit


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SOME SYMBOLOGIES

CODE 39 UPC-A Interleaved 2 of 5 CODE 128 ISBN


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CODE 39(1)

Code 39 (also known as 3 of

9 bar code) is a barcode

symbology that can encodeletters (A through Z), digits

(0 through 9) and a handful

of special characters like

the % sign.


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CODE 39(2)

Each character iscomposed of 9elements,5 bars and 4

spacesBars and spaces have2 widths

Of the 9 elements ,3

are wide and 6 arenarrow


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UPC-A

UPC-A encodes 11 digitsof numeric (0 through9) data along with atrailing check digit, fora total of 12 digits of

bar code data.


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INTERLEAVED 2 OF 5

Each data character is

composed of 5 elementseither 5 bars or 5 spaces

Bars and spaces have 2

widths

Of the 5 elements ,2 are

wide and 3 are narrow


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CODE128

Bars and spaces have 4

different widths(4-level code)

Code 128 is very compact and

results in a dense symbol


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ISBN

for a 13 digit ISBN,prefix:978 or 979 (indicating the

industry; in this case, 978denotes book publishing)

thegroup identifier, (language-sharing country group)

thepublisher codethe item number, (title of the

book)

a checksum characteror checkdigit.


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THERE ARE THREE BASIC

TYPES OF BARCODE

SCANNERSFIXED,

PORTABLE BATCH, AND

PORTABLE WIRELESS


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WIRELESS PORTABLE SCANNERS

Fixed scanners Portable batch scanners


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HOW DO SCANNERSWORK?


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FIXED SCANNERS

Fixed scanners remain attached to their host

computer and transmit one data item at a

time as the barcode is scanned


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PORTABLE BATCH

SCANNERS

Portable batch scanners are hand-heldbattery operated readers which store data in

memory for uploading to the host at a

different time


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WIRELESS PORTABLE

SCANNERS

When you need to collect information at a

remote location, and need the information

immediately, a wireless solution is the

perfect one


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BARCODEBENEFITS

REPRESENTUNIQUE IDENTITYOFA PRODUCT

Fast and accurate data collection:

6 times as fast as typist and error rate is reduce from 1 in 300(key

data entry) to 1 in 3 million

LABOUR SAVINGSBYAVOIDING MANUAL SYSTEM

Improved management:

Better decision making

Faster access to information


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APPLICATION AREAS

PROVISIONSTORES

SHOPPINGMALLS

RETAIL STORESHEALTH CARE


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THANK YOU

Documents

barcode presentation11