Service Description
Barcode cards to a group with the rules of the air and its corresponding bar code characters consisting of documented information, Common barcode symbol is black and white printing on the air, when the light bar code symbols on fire, Black and white space have a strong contrast, the use of air, the different light reflectance to information literacy. Barcode cards into one-dimensional and two-dimensional code code two. One-dimensional code more commonly used, such as daily commodities on the overpack is one-dimensional bar code code. The small amount of information storage, and can only store a code, use the code through the computer network access to the data. Two-dimensional code is developed in recent years, it can in the limited space within the storage of more information, including text, graphics, fingerprints, Signed, from the computer can use. Barcode card production simple, ordinary barcode according to a set of requirements can print or copy, the cost is lower, But its reading equipment (in particular, two-dimensional code reading equipment) more expensive. And the IC card and magnetic card is different barcode card information can not be rewritten addition, poor safety performance standards not unified, All of which limits its application. Barcode information is loaded numbers, letters, numbers, letters will be read by standard codes of string. Barcode coding technology mainly related to barcode coding rules and standards. Barcode coding rules is to develop standards and code system for bar code symbols for the main basis for identification.
