Barcode technology

Name : Vadadoriya Subhash S.
En No. : 120590116011
Sem. : 5th
Branch : Information & Technology

Key Points :
• What is barcode?
• Why use barcodes?
• Barcode types
• Application of barcode
• Evaluation of barcode
• Barcode Scanner
• Advantages
• Disadvantages

What is barcode?
 It is an automatic identification technology
 Bar code is a predefined format of dark bars and white
spaces
 Structured to contain a specific piece of information
 It allows real-time data to be collected accurately and
rapidly
 Combination of barcode technology with computer and
application software improves performance,
productivity and profitability

Why use barcodes?
 As far back as the 1960s, barcodes were used in
industrial work environments. Some of the early
implementations of barcodes included the ability
identify rail,road,cars,etc……
 In the early 1970s, common barcodes started appearing
on grocery shelves. To automate the process of
identifying grocery items, UPC barcodes were placed on
products.
 Today, barcodes are just about everywhere and are
used for identification in almost all types of business.

 When barcodes are used in the business process,
procedures are automated to increase productivity and
reduce human error.
 Whenever there is a need to accurately identify or track
something, bar-coding should be used. For example, in
a data entry work environment, workers may be
required to enter an enormous amount of data into a
customer database system.
 Instead of manually typing a customer identification
number into a database, if the information is contained
in a barcode, a data entry operator may scan it in. This
would increase automation and reduce human error.

Barcode Types
 The type of barcode to use for a particular situation
depends upon:
1. The use.
2. The data encoded in the barcode.
3. How the barcode will be printed.

There are two types of barcodes:
1. Linear barcodes
2. 2D barcodes.

Some established barcode industry standards
include:

Application of Barcode
 FOR LABORATORIES
 BCA provides labels, printers and bar code scanners specifically for the
LABORATORY environment. Our labels, suitable for all printers and most
software packages, can withstand moisture, refrigeration and a variety of
solutions. The adhesive can also be glove free.

 FOR LIBRARIES
 BCA provides consultation, equipment from a variety of manufacturers and 25
years experience in the data collection market. We provide the solutions to
your situation, not an off the shelf packaged solution.

 FOR INDUSTRY
 BCA provides consultation, equipment from a variety of manufacturers and 25
years experience in the data collection market. We provide the solutions to
your situation, not an off the shelf packaged solution.

Evaluation of Barcode
 One of the most common tools for reading barcodes is the hand
held barcode scanner. All of the barcode scanners recommended
and sold by ID Automation have built-in decoders that can read
several different bar code types.
 Most of the scanners sold by ID Automation receive their power
from the PC keyboard or USB port so no external power supply is
required. When a barcode is scanned, the data is sent to the PC
as if it was typed using a keyboard.

 Not all scanners can scan barcodes that are printed at very small
x dimensions (the x dimension is the width of the narrow bar in
the code), so it is advisable to check the barcode scanner manual
to make sure the scanner can read the small x dimension
barcodes. Also, make sure the printer can accurately reproduce
small x dimension barcodes.
 The ID Automation Plug ‘n Play Barcode Scanner will scan linear
bar codes consistently at 4 to 32 mils in size and up to 4.2" in
width from a distance of 4" to 8" at 200 scans per second and
can be programmed to scan function keys from barcodes.

Barcode Scanner
Handheld, single line
Handheld, single line
Fixed mount, multi-line

Advantages
 REPRESENT UNIQUE IDENTITY OF A
PRODUCT
 ACCURACY OF DATA INPUT (ERROR
FREE)
 LABOUR SAVINGS BY AVOIDING
MANUAL SYSTEM
 MORE ACCURATE DESPATCH
 COST EFFICIENT
 REAL TIME DATA COLLECTION
 MEASUREMENT OF WORK IN
PROGRESS THROUGHOUT THE
FACTORY
 RAPID ACCESS TO TOTAL PRODUCTION
COSTS

Disadvantages
 System Failure may cost more delays.
 Scratched or crumpled barcodes may cause problems
 Data must be coded in the barcode
 In laser scanning, durability and cost are the two
disadvantages

Barcode technology

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