E -commerce platforms such as Amazon or Walmart require the UPC code, but what is used for this UPC code is not understood by many people. Take a look at the origin of the UPC code and some knowledge of the UPC code.
What is the UPC code?
Universal Product Code, usually referred to as the UPC code, is a kind of commodity barcode formulated by the United States Council (UCC), which is mainly used in the United States and Canada. The EAN code developed on the basis of it has developed into the most widely used general barcode.
How did the UPC code come?
The UPC code was born on the basis of the ring code of IBM engineer Norman Woodland. In 1966, the National Association of Food Chains (NAFC) requested the development of a device that accelerates the speed of goods. Let's replace a new type of concentric ring code for Woodland's eye code. In the summer of 1970, at the request of the National Food Chain Association, Logicon developed the Universal Grocery Products Identification Code (UGPIC), according to the design solution of IBM George J. Lairel. Soon, the US supermarket Ad HOC organization made UPC codes under the suggestion of Logicon. The United States Uniform Code Board established the UPC code system in 1973 and achieved standardization of the code system. The UPC code was first tried in the grocery retail industry. On June 25, 1974, the Marsh Super Market in Ohio installed the first UPC scanner manufactured by NCR. Among the 27 types of products using UPC barcode, the first cashier Salon Buchaanan scanned the ten -piece arrow gum with a price of 69 cents. Within ten years, the barcode scanner captured half of the US supermarket. By 1989, it reached 62 % of the national food stores.
In 1992, the Huikang Super Market in Hong Kong (called \"Top Good\") became the first supermarket in Hong Kong to use the UPC system, providing guests with faster and more convenient payment services. According to a report from 2004-2008, the branch of Wykang Super MarketThe number is therefore improved.
How is the UPC code formed?
UPC code can only be used to represent 0-9 numbers. Each 7 modules express one character, each module has two states: short (white) and bar (black). The UPC code is divided into five versions: UPC-A, B, C, D, E.
How to apply for the UPC code? How to register UPC code? How much is the UPC code?
For the UPC code, you can currently buy it directly through the simplest way. If you only want to sell on the e -commerce platform, such as Amazon and other platforms, you can use it directly after purchasing. The price of the UPC code can be bought about a few cents, and it can be more favorable if the amount is large.
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UPC-A code
It is used for universal products. It is the most widely used UPC code. There are 113 modules, 0.33 mm per module. The two left and right two are composed of 9 modules. UPC-A code is a fixed long code, which can only indicate 13 digits. From left to right, the start code of 3 modules (101), 1 system code, 5 -bit left data code, 5 module (01010) intermediate code, 5 -digit right data Code, check code, 3 module (101) termination code. Among them, the length of the module of the initial code, the middle code, and the termination code must be longer than the data code.
The corresponding rule: The corresponding rules of the left data code and the right data code are not the same. The left data code contains a module on the left, and the right data code contains even couples. The corresponding logic value of the black module is 1, and the white is 0. -
| on the left of the data code | on the right | |
Value | Logic value | Logic value | | 0
0001101 | | 1110010 | | 1
0011001 | | 1100110 | 2 |
0010011 | 1101100 [123 [123 ] | | 3 | 0111101
1000010 | | 4 | 0100011 |
1011100 123] | | 5 | 0110001 | 1001110
| 6 | 0101111 | [ 123] 1010000 |
| 7 | 0111011 | 1000100 |
8 | 01101111 | 1001000 | |
9 | 0001011 | 1110100 | |
. It can be seen that the left data code is the anti -code of the right data code. The number 4 in the figure above is an example: First, determine it is the right data code, and then read the logical value of removing it: 1011100. Converted into strips and empty are: fine black (1), fine white (0), thick black (111), thick white (00). | | Checking code: The check code is the last one of the 12 -bit data code. If the first eleven digits of the data code are N1-N11 from left to right, and the check code is named C. The calculation method of checking code C is as follows: | CC \u003d (N1+N3+N5+N7+N9+N11)* 3+(N2+N4+N6+N8+N10)) Pass. C \u003d 10-CC (if the C value is 10, take 0). Taking the barcode in the figure as an example, CC \u003d (0+6+0+2+1+5)*3+(3+0+0+9+4) \u003d 58 C \u003d 2 |
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