What is the significance and function of the bar code on the goods?

Barcode began in the 1970s, and has been widely used in all kinds of commodities internationally, providing great convenience for commercial activities and commodity management. 1988, China Commodity Coding Center was established, and bar codes were widely used in various fields in China, including publications. 199 1 April, China was officially accepted as an international member of ean, and the barcode prefix code was "69965438".

Barcode, also called barcode, is composed of a group of lines with different widths, black and white, parallel and adjacent, and is equipped with a code record composed of corresponding characters to express some information.

The meaning of a set of regularly arranged bars and spaces in bar code: bars are the parts with low reflectivity in bar code, that is, black or colored stripes; Empty is the part with high reflectivity in the bar code, that is, the white or colorless stripe part. Bar code is an automatic identification technology, and it is a special code that uses photoelectric scanning reading equipment to input data to the computer. This code includes product name, specification, price and so on.

First, the use of bar code function

(1) automatic reading recognition. As long as the label of the bar code is scanned with a scanning reader, the computer can automatically read and identify, determine the code of the goods, then find the price, do accumulation and so on. , summary settlement, output the total amount. It is fast and accurate.

(two) the classification, summary and analysis of commodity sales information is conducive to the smooth operation and management activities.

(3) The sales information can be fed back to the production unit in time through the computer network, so as to reduce the time-space difference of information transmission between production, supply and sales.

Second, EAN commodity bar code

EAN is the abbreviation of European article code and ean international. The member countries (or regions) participating in the association are called EAN member countries (or regions), and the codes of EAN bar codes are stipulated respectively. EAN barcode is universal commodity bar code. EAN barcode consists of a 12 digit product code and a check code. The first three digits of 12 are the prefix number, the middle four digits are the manufacturer code, representing an enterprise, and the last five digits are the product code.

The first three digits are only the barcode prefix codes of EAM members, which have nothing to do with the quality of goods. It can only show that some large enterprises take the lead in adopting bar codes as labels.

Commodity barcode refers to a symbol composed of a group of regularly arranged bars, spaces and their corresponding characters, which is used to represent certain commodity information. Among them, the bar is dark and empty, which is a reading device used to scan and read bar codes. Its corresponding characters consist of a group of Arabic numerals for people to read directly or input data to the computer through the keyboard. This set of spaces and corresponding characters represent the same information.

Bar code technology was born with the development and application of computer and information technology. It is a new technology integrating coding, printing, identification, data acquisition and processing.

Using bar code scanning is the general trend of future market circulation. In order to make goods circulate freely and widely in the world, enterprises must abide by the relevant provisions of commodity bar codes whether designing, manufacturing, applying for registration or using commodity bar codes.

At present, ENA barcode, UPC barcode, 25 barcode, cross barcode, Kudba barcode, Sanjiu barcode and 128 barcode are commonly used in the world, among which EAN barcode is the most commonly used commodity.

EAN commodity bar code, also known as general commodity bar code, is formulated by ean international and is widely used in the world. It is the most widely used commodity bar code in the world. At present, this commodity bar code is being used in China. EAN commodity bar codes are divided into EAN- 13 (standard version) and EAN-8 (abbreviated version).

EAN- 13 general commodity bar code generally consists of prefix, manufacturer code, commodity code and check code. The prefix code in commodity bar code is used to identify the country or region, and the code is given in ean international. For example, 00-09 stands for the United States and Canada. 45-49 stands for Japan. 690-692 stands for Chinese mainland, 47 1 stands for Taiwan Province Province and 489 stands for Hong Kong Special Administrative Region. The empowerment of manufacturers' codes is organized by article codes in various countries or regions, while in China, the National Article Coding Center gives manufacturers' codes. Commodity codes are codes used to identify commodities, and the right to assign codes is exercised by the product manufacturers themselves. Manufacturers themselves decide which Arabic numerals to use for their products according to the prescribed conditions. At last, the 1 parity code is used to check the correctness of the L- 12 digital code from the left in the barcode.

The coding of commodity bar codes follows the principle of uniqueness, so as to ensure that commodity bar codes will not be repeated in the global scope, that is, a commodity item can only have one code, or a code can only identify one commodity item. Commodities with different specifications, different packages, different varieties, different prices and different colors can only use different commodity codes.

The standard size of commodity bar code is 37.29mmx26.26mm, and the magnification is 0.8-2.0. When the printing area allows, the barcode with magnification of 1.0 should be selected to meet the reading requirements. The smaller the magnification, the higher the printing accuracy. When the printing accuracy can not meet the requirements, it is easy to read the bar code.

Because the identification of bar code is realized by the color contrast between bar code and blank bar code, generally speaking, as long as the color can meet the requirements of contrast (PCS value), light color can be used as blank color, such as white, orange and yellow, and dark color as bar, such as black, dark green and dark brown. The best color scheme is black stripes and white spaces. According to the practical experience of bar code detection, red, gold and light yellow should not be used as bar code colors, and transparent and gold should not be used as blank colors.

EAN-8 commodity bar code refers to the 8-digit commodity bar code used for identification, which consists of 7-digit commodity item code and 1 digit check code.

The birth of commodity bar code greatly facilitates the circulation of commodities, and modern society cannot do without commodity bar code. According to statistics, at present, there are 500,000 kinds of products in China that use the international commodity bar code. After China's entry into the WTO, enterprises will surely win more space for activities on the international stage. To keep up with international practice and meet the needs of international trade, enterprises should not mistreat commodity bar codes.

Bar code prefix codes of some EAM members.

United States, Canada 00-09 Israel 729 Denmark 57

(In-store code) 20-29 Venezuela 759 Norway 70

Japan 45-49 Uruguay 773 Switzerland 76

Belgium/Luxembourg 54 Bolivia 773 Spain 84

Finland 64 Chile 780 Austria 90-965438

Sweden 73 Ecuador 786 New Zealand 94

Italy 80-83 Cuba 850 Slovenia 383

Netherlands 87 Czech 859 Germany 400-440

Australia 93 Korea 880 Taiwan Province Province 47 1

Bulgaria 380 Singapore 888 Latvia 475

Croatia 385 Malaysia 893 Sri Lanka 479