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3. Generate sequence
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Barcode Technology - QR Code
Hide the description
QR code is a specific matrix
barcode (or two-dimensional
code), readable by dedicated QR
barcode readers and
phones. The code consists of
black modules arranged in a
square pattern on a white
background. The information
encoded can be text, URL or
Which of the numerous types
should I use to create a QR
If you have no special wishes,
simply choose QR Code. It
creates a the smallest QR Code
that is possible.
The QR code system was invented
in 1994 by Masahiro Hara from
the Japanese company Denso Wave.
design was influenced by the
black and white pieces on a Go
board. Its purpose was to track
vehicles during manufacturing;
it was designed to allow
high-speed component scanning.
QR codes are now used in a much
broader context, including both
commercial tracking applications
applications aimed at
mobile-phone users (termed
mobile tagging). QR codes may be
used to display text to the
user, to open a webpage on the
user's device, to add a vCard
contact to the user's device, to
open a Uniform Resource
Identifier (URI), to connect to
a wireless network, or to
compose an email or text
message. There are a great many
QR code generators available as
software or as online tools that
are either free, or require a
paid subscription. The QR code
has become one of the most-used
types of two-dimensional code..
QR codes are used in some
augmented reality systems to
determine the positions of
objects in 3-dimensional
space. QR Codes are also being
used to deliver Augmented
Multimedia QR Codes are also
used to direct users to specific
multimedia contents (such as
video, audio, images,
This barcode types has no human
readable text based on the
specification. The ShowText
property has no effect,
when using one of this codes.
Who Uses QR Codes?
Today QR Codes have many uses,
including transport ticketing,
entertainment, product labeling,
and marketing. In short, you can
use a QR code in virtually any
situation where you want to send
people to a specific website. It
is now becoming more common for
people to use QR Codes when
looking at a product in-store.
They often go in-store to look
at the physical product and then
use their smartphones to compare
prices. Depending on how
technological the retailer is,
they can scan QR codes to find
additional information about the
products that interest them..
QR Code is one of the many
barcode formats currently in
A Barcode is a method of
representing data in a visual,
The barcode formats has two
One-dimensional (1D) ---
Barcodes represented data by
varying the widths and spacings
of parallel lines.
Two-dimensional (2D) --- Using
rectangles, dots, hexagons and
other geometric patterns to
QR Code is 2D barcode.
QR Code is variable:
Calculated according to
this barocde generate program
calculates the check digit
Alternatively, you can specify
the symbol size. Select one of
the types with fixed-size for
this purpose, e.g. QR Code
45x45. The error correction is
selected automatically depending
on the amount of data as good as
Comparison of Data Matrix and QR
Both Data Matrix and QR Code are
two-dimensional barcode, which
are able to contain a
considerably great volume of
information with a small area.
However, there are many
differences between Data Matrix
and QR Code.
Matrix (ID Matrix) in
Developed by Denso Wave
ASCII: Double digit
values 0 - 127, and
values 128 - 255
case and special
case and special
X12: ANSI X12 EDI
values 32 - 94
Base 256: All byte
values 0 - 255
Numeric data (digits
0 - 9)
(digits 0 - 9; upper
case letters A - Z)
and nine other
$ % * + - . / :)
Byte data (default:
ISO/IEC 8859-1; or
other sets as
can be compacted
into 13 bits)
Maximum data characters
1,555 8-bit byte
Most barcodes display their
corresponding values below them,
which makes it possible to human
read and manually enter
the barcode values into the
equivalent system when the
barcode label is worn out and
cannot be read by the barcode
The Advantages of using
If you want to reduce costs and
save time, using barcodes is a
good choice. Whether you are a
company or a non-commercial
organization, to improve
efficiency and reduce overhead,
barcodes are a valuable and
viable option, which is
economical and reliable.
Using Barcode system eliminates
the possibility of human error.
The error rate of manually
entering data is
significantly higher than that
of scan barcodes. Barcode
scanning is fast and reliable,
and it takes much less time than
manual data entry. Especially
when using a QR code, hundreds
of characters can be read and
entered into your system
Using a barcode system can make
the working process simple and
easy, so it can reduces the
employee training time. It only
takes a few minutes to master
the barcode scanner to
collecting data, employees no
need to familiar with the entire
inventory or pricing process.
This also reduces the cost of
The bar code design and printing
cost are low. Generally
speaking, no matter how they are
used or where they are posted,
the cost is not high. They can
be customized economically, in a
variety of finishes and
The barcode system is very
versatile, it can be used for
any necessary data collection.
This may include pricing or
inventory information or
management information service
system. In addition, because
barcodes can be affixed to
almost any surface, they can be
used not only to track the
product itself, but also to
track the production process,
shipments and equipments.
Using barcode system will
improve the inventory control is
improved, it can track inventory
accurately, inventory levels can
be reduced it will lower the
rate of eavesdropping. The
location of the inventory and
device can also be tracked,
thereby reducing the time it
takes to find the inventory and
The barcode system provide
better data. Because a barcode
can store various information
such as inventory and pricing,
especially when using QR Code,
it can store thousands of
characters, so the data stored
in the barcode can be quickly
obtained by the barcode reader,
this fast turnaround ensures
that time is not wasted on data
entry or retrieval. In addition,
the barcode can be customized to
include other relevant
information as needed. They
provide fast and reliable data
for various applications.
When barcodes are used in
management information systems,
they can promote better
decision-making. Because data is
obtained quickly and accurately,
you can quickly obtain a full
range of information for the
entire company or organization,
so it is possible to make more
informed decisions. Better
decisions can ultimately save
time and money.
Barcodes are cheap and
user-friendly, providing an
indispensable tool for tracking
data from pricing to inventory.
The end result of a
comprehensive bar code system is
Frequently Asked Questions About QR
What is the
origin and development process of QR Code?
QR Code was
invented in 1994 by a team led by Masahiro Harada of the
Japanese company Denso Wave, based on its original use for
marking car parts. It is a two-dimensional matrix barcode that
can be used for a variety of purposes.
encoding and decoding rules of QR Code were formulated into
multiple international standards, such as AIM International, JIS
X 0510 and ISO/IEC 18004:2015.
The reason why QR
Code has to develop multiple standards is to adapt to different
application scenarios and needs, such as data encoding method,
symbol format, error correction rules, decoding algorithm, etc.
Different standards may have different advantages and
limitations, such as scanning speed, capacity, compatibility,
etc. The development of multiple standards will also help the
internationalization and popularization of QR Code, allowing
more people to use it.
What is the
difference between QR code and 1D barcode?
mainly lies in the encoding method and information capacity.
QR codes use a
two-dimensional square matrix, which can store more information
and represent more data types.
barcodes use one-dimensional lines, can only store a small
amount of information, and can only represent numbers or
There are other
differences between QR codes and one-dimensional barcodes, such
as scanning speed, error correction capabilities, compatibility,
situations, why should QR Code be used instead of
It is because QR
Code has the following advantages:
QR Code can store
more information because it uses a two-dimensional square matrix
instead of one-dimensional lines. One-dimensional barcodes
usually only store a few dozen characters, while QR Codes can
store thousands of characters.
QR Code can
represent more data types, such as numbers, letters, binary,
Chinese characters, etc. One-dimensional barcodes usually can
only represent numbers or letters.
QR Code can be
scanned and recognized faster because it has four positioning
marks and can be scanned from any angle. One-dimensional
barcodes usually need to be scanned from a specific direction.
QR Code is more
resistant to damage and interference because it has error
correction capabilities that can recover partially lost or
obscured data. One-dimensional barcodes generally do not have
Why are QR codes
faster to scan?
The reason why QR
codes scan faster is that they can express information in both
the horizontal and vertical directions, while one-dimensional
codes can only express information in the horizontal direction.
QR codes also
have some special geometric patterns, such as positioning
patterns, alignment patterns and correction patterns, which can
help the scanner quickly identify the position and direction of
the QR code.
QR codes also
have certain error correction capabilities. Even if part of the
QR code is blocked or damaged, the data can still be recovered.
Will QR codes
replace one-dimensional barcodes?
QR codes and
one-dimensional barcodes are two different encoding methods,
each with its own advantages and disadvantages.
barcodes can only express information in the horizontal
direction, while 2D codes can express information in both
horizontal and vertical directions.
codes can only hold 30 characters, while two-dimensional codes
have a large information capacity, with a maximum data capacity
of 1850 characters.
QR codes can
directly store product information without connecting to another
The large size of
one-dimensional code and low space utilization determines the
low information capacity, while the two-dimensional code is
relatively small in size (high space utilization) and has the
ability to resist damage.
correction rates of QR codes are divided into four levels: L, M,
Q, and H from low to high. The maximum error correction rates of
each level are 7%, 15%, 25%, and 30% respectively, while the
one-dimensional codes There is no strong error correction
What are the
advantages and disadvantages of QR Code?
More data can be
stored, including text, addresses, phone numbers, website
addresses, videos, maps, etc.
and content can be customized to increase brand recognition and
without alignment or angles.
Can be fault
tolerant and resilient, identifying even parts that are
corrupted or obscured.
software or applications are required, unlike 1D barcodes which
can be read with any scanner.
quality and clarity are required, otherwise they may not be
There may be a
security risk because users cannot directly see the scanned
content or the destination URL.
Is QR Code the
only two-dimensional barcode?
No. QR Code is
not the only two-dimensional barcode.
principles, two-dimensional barcodes can be divided into two
categories: matrix type and stacked type.
Common types of
2D barcodes include:
MaxiCode, Aztec, QR Code, PDF417, Vericode, Ultracode, Code 49,
Code 16K, etc.
different applications in different fields.
industries is QR Code widely used?
QR Code is a
two-dimensional code that can store a variety of information and
can be scanned and recognized using mobile phones and other
QR Code can be applied to multiple industries, such as:
Retail industry: QR Code can be used to display product
information, prices, reviews and other content.
Catering industry: QR Code can be used to provide menus, payment
methods, coupons and other services.
Education industry: You can use QR Code to share course
materials, homework, exams and other information.
Entertainment industry: QR Code can be used to provide movie
tickets, concert tickets, game downloads and other functions.
examples of QR Code.
QR Codes can be embedded on business cards, allowing users to
scan and obtain contact information.
URL: You can link
the QR Code to a website for users to access directly.
Map: QR Code can
be pointed to a map location to allow users to navigate or view
PDF: QR Code can
be linked to a PDF file for users to read or share.
Pictures: The QR
Code can contain multiple pictures for users to browse or
How many types of
QR Code are there?
different perspectives, there are many types:
Encoding mode: QR
Code can use four standard encoding modes to store data, which
are (i) numeric, (ii) alphanumeric, (iii) byte or binary, and
(iv) Chinese characters.
QR Code has 40 version numbers, and each version number
corresponds to a different number of data modules. The data
modules are the black and white squares that make up the QR
Code. The higher the version number, the more data modules there
are and the more data can be stored.
Model: QR Code
has two models, namely Model 1 and Model 2. Model 1 is the
original QR Code. The largest version number is 14 (73 x 73
modules) and can store up to 1,167 numbers. Model 2 is an
improvement on Model 1. The maximum version number is 40 (177 x
177 modules) and can store up to 7,089 numbers.
Why does mobile
payment use QR Code?
The reasons for
using QR Code for mobile payment are as follows:
QR Code can
quickly and easily transmit payment information without entering
a card number or password.
QR Code can save
the cost of payment terminals and is suitable for merchants of
various scenarios and sizes.
QR Code can
support a variety of payment methods, such as bank cards,
e-wallets, third-party payment platforms, etc.
QR Code can
reduce the risks of contact payments and improve payment
security and hygiene.
Is VCard a QR
Code? What's the difference between them?
VCard and QR Code
are not the same thing, they have some differences.
VCard is a file
format that can save contact information. QR Code is a
two-dimensional code that can store or link to different types
of data, such as URLs, text, images, etc.
You can use VCard
as a data type of QR Code and obtain or share VCard by scanning
countries currently use QR Code for mobile payments?
There are many
countries that use QR Code for mobile payments, including China,
India, Vietnam, Singapore, Philippines, Malaysia, Thailand,
Italy, France, Spain, Germany, the United States, Canada,
Brazil, Australia, Ireland and the United Kingdom.
other QR codes, what are the advantages of QR Code? Why can it
become the most widely used QR code?
QR Code has
become the most widely used QR code because of its flexibility
QR Code can store
more information, such as website addresses, phone numbers,
are fast scanning, high error tolerance, automatic error
correction, customized appearance, and the ability to generate
dynamic and static QR codes.
between QR Code and other QR codes mainly lies in the encoding
method and capacity. QR Code uses four standardized encoding
modes: numeric, alphanumeric, byte or binary, and Chinese
characters. QR Code can store up to 7089 numbers or 2953 bytes.
What are the
future development prospects of QR Code?
QR Code, like
Data Matrix and other QR codes, has broad application prospects.
barcodes have many advantages that one-dimensional barcodes
cannot compare with. Although it is still in its infancy, driven
by the constantly improving market economy and rapidly
developing information technology, coupled with its unique
characteristics, two-dimensional barcodes , countries' demand
for the new technology of two-dimensional barcodes is increasing
day by day.
Especially in the
past two years, two-dimensional barcodes have begun to be
applied in many industries, and many far-sighted manufacturers
have also begun to get involved in the field of two-dimensional
other automatic identification technologies, 2D barcodes have
With the development of science and information technology,
automatic identification technology is becoming more and more
popular. The key points of automatic identification technology
are mainly in improving data quality and input speed and
eliminating human interference. Among them, automatic
identification technologies that perform well include barcodes,
magnetic cards, IC cards and radio frequency identification.
However, two-dimensional barcodes have obvious advantages in
terms of information carrier cost, information volume,
confidentiality, anti-pollution and anti-interference, and
standardization, and have good prospects for promotion and
First of all, in
the application field of automatic identification technology,
two-dimensional barcodes have many advantages:
1) The production
cost of forms and documents using two-dimensional barcodes is
barcodes can be printed using common inkjet printers, laser
printers, and thermal transfer printers, and can be printed on
paper, cards, or PVC cards. Therefore, compared with other
automatic identification technologies, it is low in cost and has
good practical value.
2) Forms and
documents using two-dimensional barcodes have good fault
tolerance and long service life.
Various forms and
documents may be damaged and contaminated to varying degrees
during use. Therefore, higher requirements are placed on their
service life and machine reading capabilities. The 2D barcode
uses an error correction algorithm and has strong error
correction capabilities. Even after part of it is damaged, it
can still be read by a machine through error correction.
dependence on the main system and network, thereby reducing
costs and improving reliability.
two-dimensional barcode is a portable data file that can carry a
large amount of information itself and does not need to be
connected to an external database. Therefore, when calculator
and database support are not available, the two-dimensional
barcode can also be read through a portable data terminal.
information in the barcode, thereby reducing dependence on the
main system and network, reducing usage costs and improving
machine-readable function of documents is realized.
machine-readability and anti-counterfeiting capabilities of
documents are the hallmarks of the new generation of documents.
Two-dimensional barcodes can encode important information such
as the holder's name, certificate number, blood type, gender,
etc., and can be automatically read by machines, solving the
problem of automatic entry of document data information.
5) Improved the
anti-counterfeiting capabilities of documents.
barcodes have good anti-counterfeiting capabilities. Using
two-dimensional barcodes on documents can improve the
anti-counterfeiting capabilities of documents by mathematically
encrypting the data information represented by the
two-dimensional barcodes. Currently, mathematical encryption
technology is already a very advanced and mature technology in
the world. Therefore, the anti-counterfeiting ability of the
document can be greatly increased.
high technology of two-dimensional barcode has great promotion
and application value.
Secondly, 2D barcodes have market space.
As a new barcode
technology, 2D barcode has been widely used in fields such as
national defense, medical care, commerce, finance, and logistics
management. Because two-dimensional barcodes have large
information capacity, good confidentiality and
anti-counterfeiting properties, and low cost, they have very
broad application prospects. It is foreseeable that
two-dimensional barcode technology will bring considerable
social and economic benefits to the development of the
information industry and modern economic construction.
products in the pharmaceutical and electronic fields. Medical
and electronic products are small and do not have enough space
to accommodate traditional barcodes. The high density of 2D
barcodes allows automatic identification of these products. For
example, some electronic chips are expensive and must be
tracked. In addition, the use of two-dimensional barcodes for
mandatory controlled drugs in Western countries is also
imperative in other countries, so the above technology will
become increasingly important.
barcodes have now entered the stage of systematic application in
Western developed countries. Their application fields and usage
methods have largely guided the development direction of the
world's two-dimensional barcodes. Manufacturers and dealers of
2D barcode related equipment want to enter a wide range of
fields, involving a wide range of areas and closely related to
people's daily work and life, such as railway transportation, ID
cards, household appliances and public utilities. This is almost
Involving every family and every person, this indicates that 2D
barcodes will enter our lives and penetrate into our lives.
In recent years,
information technology and automated management have developed
rapidly. Driven by the information industry and commercial
automated management, two-dimensional barcode technology, one of
the important means of automatic collection of information data,
has been rapidly promoted and applied. Since 1998, sales of
two-dimensional barcode reading equipment have grown
exponentially, and the development momentum is satisfactory.
There is no doubt that information technology and modern
management are global development trends. As an important part
of information technology, two-dimensional barcodes have broad
room for development with the development of information
technology and modern management, the improvement of people's
awareness and deepening of understanding, and the increase in
people's anti-counterfeiting requirements for products and
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