The verification code on cigarettes can indicate the country of production, manufacturer, commodity name, production date, category, date and many other information. Each cigarette corresponds to a unique bar code, which can be recognized by the bar code recognizer and has a wide range of uses in commodity circulation. Domestic cigarette bar codes follow the rules of EN- 13. The top three are countries, 690= Chinese mainland; Four to seven are industries, 1028= tobacco; Eight to ten are enterprises, and 058 and 936 are bar code segments of Shaanxi Zhongyan; Eleven and twelve are products, for example, 8 1 after 058 is allocated to the small box of Lucky Good Cat without upgrade, and 82 is allocated to the box of Lucky Good Cat without upgrade; The last digit is the verification code, and the value = 10- (sum of odd numbers+sum of even numbers X3) takes single digits.
The meaning of commodity barcode number: Take barcode 69369838000 13 as an example. The bar code is divided into four parts from left to right:
1. 1-3 digits: 3 digits in total, corresponding to barcode 693, which is one of the national codes of China. (690-695 are all codes of Chinese mainland, which are used internationally).
2.4-8 digits: 5 digits in total, and 69838 corresponding to the bar code represents the manufacturer code, which is applied by the manufacturer and allocated by the country.
3.9- 12 digits: 4 digits in total, and 000 1 corresponding to the bar code represents the product code when it leaves the factory, which is determined by the manufacturer.
4. Bit 13: a total of 1 bit. The 3 bits corresponding to the barcode are check codes, which are calculated from the previous 12 bits according to a certain algorithm.