Knowledge about barcodes, what are the encoding rules for barcodes?

At present, there are barcode machines on the market to sell (specialized and printing barcode all-in-one machines).

The barcode is divided into 4 parts, from left to right:

1-3 digits: a total of 3 digits, corresponding to the barcode of 693, is one of the national ** in China. (690--695 are all ** in Chinese mainland, distributed internationally).

4-8 digits: a total of 5 digits, corresponding to the barcode of 69838, on behalf of the manufacturer**, applied by the manufacturer, allocated by the state.

9-12 digits: a total of 4 digits, corresponding to the barcode 0001, representing the goods in the factory, determined by the manufacturer.

The 13th digit: a total of 1 digit, corresponding to the 3 of the barcode, is the check code, according to a certain algorithm, calculated by the first 12 digits and obtained.

The commodity barcode is generally composed of the prefix part, the manufacturer**, the product** and the check code. The prefix code in the commodity barcode is used to identify the country or region, and the right to assign the code is in the International Article Number Association, such as 00-09 on behalf of the United States and Canada. 45 49 for Japan.

690-695 represents Chinese mainland, 471 represents Taiwan, and 489 represents Hong Kong SAR.

Empowerment of Manufacturers** In the article coding organization of each country or region, China is empowered by the National Article Coding Center to manufacturers**. Commodities are used to identify the goods, and the right to assign codes is exercised by the product manufacturers themselves, and the manufacturers decide which Arabic numerals are used for the commodity barcodes in accordance with the prescribed conditions.

At the end of the product barcode, a 1-digit check code is used to verify the correctness of the 1st 12th digit ** from the left in the product barcode. Commodity barcode refers to a set of regularly arranged bars, blanks and their corresponding characters composed of logos, used to represent a certain commodity information symbols.

The importance of the popularization of barcode knowledge in the promotion and use, to make the management, the operation of the personnel understand the principle of barcode, why the application of barcode technology and the role of barcode in the computer system, the application of barcode technology will be the efficiency of production management, quality management, so that we can pay attention to this work from the ideological point of view.

The application of barcode must be closely coordinated by all departments, and the application of barcode involves multiple links such as product number, barcode printing, barcode pasting, barcode scanning, etc., which must be completed by the division of labor and cooperation of the production department, quality inspection department, and equipment department. General product barcode to take centralized printing, the specific number of printing, pasting can be completed by the production workshop, should be designated special person to operate and maintain, and technical training, barcode scanning by the quality inspection department to complete. When the barcode information is wrong, it needs to be dealt with in a timely manner, and it requires the coordination and full support of the upper leadership.

The use of barcode, through the computer system for effective management, is the key to the application of barcode technology The purpose of the application of barcode technology for management is to ensure the rapid and accurate input of product information, in order to prevent the loopholes caused by manual input, and to provide managers with a variety of data for each product, we use barcode technology in the inspection of air conditioner goods, and establish a quality file before leaving the factory for each product, effectively providing a variety of information.

The development of barcode management rules and regulations Qiyudu barcode application must be in accordance with certain rules, to comply with its scientificity, the establishment of the entire product coding system, internal barcode generation rules, barcode printing system, barcode pasting specifications, products to make quiet pure rock with barcode system, and the production workshop of the barcode utilization rate as an economic and technical indicators to assess.

The barcode is divided into 4 parts, from left to right:

1-3 digits: 3 digits in total, e.g. 693, is one of the countries of China. (690--695 are all China's **, distributed internationally).

4-8 digits: a total of 5 digits, such as 69838, representing the manufacturer**, applied by the manufacturer, allocated by the state.

9-12 digits: a total of 4 digits, such as 0001, representing the goods in the factory**, determined by the manufacturer.

The 13th digit: a total of 1 digit, for example, 3, is the check code, according to a certain algorithm, calculated from the first 12 digits.

Extended Materials. A barcode is a graphic identifier that combines multiple black bars and blanks of different widths and arranges them according to certain coding rules to express a set of information. A common barcode is a pattern of parallel lines arranged by black bars (referred to as strips) and white bars (referred to as blanks) with very different reflectivity.

Barcode can mark the country of production, manufacturer, commodity name, production date, book classification number, mail start and end location, category, date and many other information, so it has been widely used in many fields such as commodity circulation, book management, postal management, banking system, etc. Barcodes are by far the most economical and practical form of automatic identification technology. Barcode technology has the characteristics of fast input speed, high reliability, large amount of collected information, flexible and practical, easy to make labels, and low cost.

Reference Encyclopedia - Barcode.