The bar code is the width ranging from a number of black and blank, arranged according to the encoding rules for the expression of a set of information graphics identifier. Common barcode reflectivity difference between the black bars (referred to as bars) and white bars (referred to as empty) arranged in parallel lines pattern. Bar code can be marked on the goods-producing countries, manufacturer, product name, production date, book words, e-mail starting and ending location, category, date, etc. Much of the information, and thus in many areas of commodity circulation, library management, postal management, banking system, etc. a wide range of applications.
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The international community, including China, now collectively known as the bar code! Width ranging from a number of black and blank, according to the encoding rules are arranged for the expression of a set of information graphics identifier. Common barcode reflectivity difference between the black bars (referred to as bars) and white bars (referred to as empty) arranged in parallel lines pattern. Bar code can be marked on the goods-producing countries, manufacturer, product name, production date, book words, e-mail starting and ending location, category, date, etc. Much of the information, and thus in many areas of commodity circulation, library management, postal management, banking system, etc. a wide range of applications.
Generally the prefix part, the universal product bar code, manufacturer code, product code and the checksum component. Commodity bar code prefix code is the code used to identify the country or region, endowed rights in the International Article Numbering Association, such as 00-09 on behalf of the United States, Canada. 45-49 on behalf of Japan. 690-695 on behalf of the Chinese mainland, 471 on behalf of the Taiwan region of China, 489 on behalf of the Hong Kong Special Administrative Region. Empowerment of the manufacturer code items in various countries or regions coding organization, given by the National Article Numbering Center of the manufacturer code. The commodity code is the code used to identify goods, endowed the right exercised by the product manufacturers and the manufacturers in accordance with specified conditions, to decide what goods Arabic numerals for the product bar codes. Product bar codes and finally a checksum to verify the correctness of the left in the product bar codes 1-12 numeric code. Commodity barcode is arranged by a set of rules that bar empty and their corresponding characters, logos, and symbol to indicate a certain product information. Which the bar is dark, empty satisfied that the color for the bar code reading device scan reading. The corresponding character by a group of Arabic numerals, for direct reading or through the keyboard to the computer input data. The information represented by the group bar empty and the corresponding characters are the same.
Bar code technology is born with the development and application of computer and IT, which is set encoding, printing, identification, data acquisition and processing in a new type of technology.
The use of bar code scanning is the major trend of the future market liquidity. Order to make the goods in the world free flow, whether it is design, the application for registration or use of product bar codes, must follow the relevant provisions of the goods bar code management.