the basic information of the product is recorded in detail on the barcode. Including the production date, PCB model, IC model and IC production date, which is convenient for the company's maintenance personnel to track each product.
commodity bar code refers to a sign consisting of a set 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 used for scanning and reading bar code reading equipment. Its corresponding characters are composed of a group of Arabic numerals for people to read directly or input data to the computer through the keyboard. This group of blanks and the corresponding characters represent the same information.
Bar code technology came into being with the development and application of computer and information technology. It is a new technology integrating coding, printing, identification, data acquisition and processing.
At present, there are ENA barcode, UPC barcode, 25 barcode, crossed 25 barcode, Kudba barcode, Sanjiu barcode and 128 barcode commonly used in the world, and EAN commodity bar code 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 all over the world. It is the most widely used commodity bar code in the world. This kind of commodity bar code is being used in China at present. EAN commodity bar code is divided into EAN-13 (standard version) and EAN-8 (shortened version).
ean-13 universal 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, -9 represents the United States and Canada. 45-49 stands for Japan. 69-692 stands for Chinese mainland, 471 stands for Taiwan Province and 489 stands for Hong Kong Special Administrative Region. The empowerment of manufacturer's code is organized by article coding in various countries or regions, and in China, the national article coding center gives manufacturer's code. Commodity codes are codes used to identify commodities, and the right to assign codes is exercised by the product manufacturers themselves. The manufacturers themselves decide which Arabic numerals to use for their own commodities according to the prescribed conditions. Commodity bar code finally uses the 1-digit check code to check the correctness of the L-12th digit code from the left in commodity bar code.
commodity bar code's coding follows the principle of uniqueness, so as to ensure that commodity bar code will not be repeated all over the world, that is, a commodity item can only have one code, or a code can only identify a commodity item. Commodities with different specifications, different packages, different varieties, different prices and different colors can only use different commodity codes.