Downstairs do not understand, I am a Japanese company employees in Changzhou, working in the bar code production room
Barcode is a set of bar by a certain coding rules, empty symbols, used to represent a certain characters, numbers and symbols composed of information. Barcode system is an automatic identification system composed of barcode symbol design, production and scanning and reading.
Barcode encoding mode?
There are many types of barcodes, and there are probably more than twenty common code systems, including: Code39 (standard 39 code), Codabar code (Kudumba code), Code25 (standard 25 code), ITF25 (cross 25 code), Matrix25 (matrix 25 code), UPC-A code, UPC-E code, EAN-13 code ( EAN-13 International Merchandise Code), EAN-8 Code (EAN-8 International Merchandise Code), China Postal Code (a variant of Matrix25 Code), Code-B Code, MSI Code, Code11 Code, Code93 Code, ISBN Code, ISSN Code, Code128 Code (Code128 Code, including EAN128 Code), Code39EMS (EMS-specific 39 code) and other one-dimensional barcodes and two-dimensional barcodes such as PDF417.
Currently, the types of barcodes that are widely used internationally are EAN, UPC codes (commodity barcodes, which are used to uniquely identify a commodity in the world. We are most common in the supermarket is this kind of barcode), Code39 code (can represent numbers and letters, in the field of management of the most widely used), ITF25 code (in the logistics management of the application of more), Codebar code (mostly used in the field of health care, books), Code93 code, Code128 code and so on. Among them, EAN code is widely used in the world of commodity bar code, has become the basis of electronic data interchange (EDI); UPC code is mainly used in the United States and Canada; in all kinds of bar code application system, Code39 code can be used because of its numbers and letters *** with the composition of the same way in the internal management of the various industries are widely used; in the blood bank, libraries and photo studio business, Codebar code is also widely used. Codebar code is also widely used.
Bar code is not used to prevent counterfeiting, but the equivalent of the product's identity card, who said that the fake goods do not have a bar code, you've seen the use of bar codes to prevent counterfeiting? Anti-counterfeiting is anti-counterfeiting code! Bar codes generally use digital information to record the manufacturer, production address, production of goods, developers, and some even contain legal information. The ultimate use of barcodes is simply for identification and information transfer! I don't know where I got this from: "Barcodes are only used as a means of preventing counterfeiting, not as a picture!" Where did he get that from? He is really dizzy!