The meaning and composition of barcode

The meaning and composition of barcode are as follows:

Barcode is a pattern composed of a set of vertical bars and blanks, which is used to represent a specific kind of information. It is widely used in the field of commodity packaging, logistics management, inventory management, etc. By scanning the barcode, we can get the information related to it, such as the name of the commodity, price, date of production and so on.

1, application background

The barcode appears to solve the traditional manual input errors, inefficiency. Through the use of bar code scanning equipment, you can quickly and accurately get the goods and other information to improve efficiency and reduce human error.

2, coding rules

Bar codes use certain coding rules to represent specific information.

The most commonly used coding rule is EAN-13 (belonging to GS1 standard), which consists of 13 digits and is divided into three parts: country code, manufacturer code and product code. The country code represents the country/region where the goods are produced, the manufacturer code represents the producer of the goods, and the product code represents the specific goods. In addition, there are UPC codes (used in the United States), Code39 codes, and so on.

3, pattern composition

Bar code pattern consists of a set of vertical bars and blanks, the vertical bars of different widths and spacing, according to different coding rules for interpretation. Generally speaking, the vertical bars are usually composed of black and white, with black indicating binary 1 and white indicating binary 0. The barcode pattern can be printed, sprayed, etc. on the packaging of goods.

4. Barcode Types

Besides EAN-13 and UPC codes, there are other types of barcodes, such as Code128 and QR codes.

Code128 code can represent more character sets and has higher error tolerance, which is suitable for logistics management and inventory management and other scenarios that need to represent a large amount of information.QR code is a kind of two-dimensional code, which can store more information, such as web address, text, phone number, etc., and is commonly used in payment, advertising and promotion.

5, barcode reading

Barcode reading relies on scanning equipment (such as scanning guns) or cameras, the equipment will scan the barcode pattern, the scanned pattern is converted to digital information, and then decoded to get the specific meaning. The reading speed is fast and accurate, which can greatly improve the work efficiency.

6, application areas

Barcode is widely used in merchandising, logistics management, inventory management and other fields. In the supermarket checkout, the salesman can scan the bar code on the goods, quickly get the relevant information about the goods, and automatically price calculation. In logistics management, barcodes can help track the flow of goods and record storage locations to improve warehouse management efficiency.