The barcode card is divided into one-dimensional barcode and two-dimensional barcode. The one-dimensional barcode carries a limited amount of information, such as the barcode on the commodity can only accommodate 13-digit (EAN-13 code) Arabic numerals, and more information can only rely on the support of the commodity database, leaving the pre-established database, this barcode is meaningless, therefore, to a certain extent, it also limits the application scope of barcode. For this reason, ah invented two-dimensional barcodes in the 1990s. In addition to the advantages of one-dimensional barcodes, two-dimensional barcodes also have the advantages of large amount of information, high reliability, confidentiality and anti-counterfeiting. From the day it was born, it has received widespread attention from the international community.
EAN 8 (2 or 5 digit supplement) Submitted
EAN 13 (2 or 5 digit supplement)
Codabar (Monarch, NW-7, USD-4, 2 of 7 code)
Code 39 StandardCode 39 Extended
Code 93 Standard
Code 93 Extended
25 Datalogic,Code25, 2 of 5
Code 11 (USD-8)
Code25, 2 of 5, ITF
Code25, 25 Matrix
Code25, 25 Industrial
Code25, 25 IATA
Code25, 25 INVERT
ITF6, ITF14 (SSC14), ITF16
ISBN (International Standard Book Number)
ISSN (International Standard Serial Number)
ISMN (International Standard Music Number)
UPC-A (with or without supplements)
UPC-E0 (with or without supplements)
UPC-E1 (with or without supplements)
PostNet (ZIP, ZIP+4, DPBC)
OPC (Optical Industry Association)
EAN barcode is a barcode developed by the International Article Numbering Association and has been used in more than 90 countries and regions around the world. The EAN barcode symbol has two types: the standard version is composed of 13 digits and the shortened version is composed of 8 digits.
Like the EAN barcode, the UPC barcode is also a barcode used for commodities. The UPC barcode is a barcode developed by the United States Uniform Code Council and is mainly used in the United States and the Nada region. Some of the commodities exported to North America in China have also applied for UPC barcode in order to adapt to the needs of North America. UPC barcode has two kinds of standard version and shortened version, the standard version is composed of 12 digits and the shortened version is composed of 8 digits.
The Sanjiu code is a non-continuous type of coding in which both bars and blanks represent information. It can represent 44 characters such as numbers 0-9, letters A-Z and eight control characters (-, space,,, $, +, %, -,) and is mainly used in industry, books and the automated management of tickets.
Codebar (Codebar) code is a kind of barcode with non-continuous, variable length, bi-directional self-test that both bars and spaces represent information, which can represent numbers 0-9, letters A-D and special characters (+, -, $, :, -). It is mainly used for automatic identification in the fields of medical and health care, library and intelligence, materials, etc.
Two five barcode is a kind of non-continuous type barcode which only has bars to indicate information, each character consists of five bars, two of which are wide and sa that narrow bar. The symbol structure is shown in Figure 5.
Crossed two or five codes
The crossed two-five code is the same as the two-five code, except that the interval between the barcode and the information is used as part of the preparation of a continuous code.
At present the main 2D barcodes are Aztec,
Code 16k, Code
Micro PDF 417.
PDF 417, PDF 417
QR Code, the
RSS code, etc., mainly divided into stacked or layer row type and tessellation or matrix type two categories.
PDF417 code: PDF417 code is developed by the United States SYMBOL company, is currently the most widely used a two-dimensional code.
Data Matrix code: Data Matrix is mainly used in the electronics industry for the identification of small parts, such as Intels Pentium processor on the back of the printed code.
Maxi Code: Maxi Code was developed by the United Parcel Service (UPS) company, used for parcel sorting and tracking and other areas