What is such a barcode called What is a product barcode?

417 is not 147

PDF417 2D Barcode】PDF417 is a stacked 2D barcode, which is currently the most widely used. The PDF417 barcode was invented by the American company Symbol, and PDF (Portable Data File) means"Portable data files"。Each barcode character that composes the barcode consists of 4 bars and 4 blanks, a total of 17 modules, so it is called PDF417 barcode.

PDF417 barcodes can represent numbers, letters, or binary data, as well as Chinese characters. A PDF417 barcode can hold up to 1850 characters or 1108 bytes of binary data, or 2710 digits if it represents only numbers. The error correction ability of PDF417 is divided into 9 levels, and the higher the level, the stronger the correction ability.

Thanks to this error correction function, defaced 417 barcodes can also be read correctly. At present, China has formulated a national standard for PDF417 code. PDF417 barcodes require a barcode reader with 417 decoding to be recognized.

The biggest advantage of PDF417 barcode is its huge data capacity and strong error correction ability. When the PDF417 barcode is used for anti-counterfeiting, it is not that the PDF417 barcode cannot be copied, but because the use of PDF417 barcode can quickly read a large amount of data into the computer, making large-scale anti-counterfeiting inspection possible.

As a look at the PDF 417 identification, you can find the related software.

Now all commodities, as long as they need to enter the market circulation, they need to add commodity barcodes to the product packaging.

This commodity barcode is generally 13 digits of data ean13 barcode type, the first 12 bits can be written by yourself, the last digit is the check code automatically generated by the software, then if the amount is more, you need to generate in batches, you can save the data in excel, and then use professional barcode software to make. Here's how;

First, place the barcode.

The data is saved in Excel, the first row is the column name, not the barcode data, and then arranged in the order of printing, and the cell attribute is better to be "text type":

2. Open the barcode software to create a new label and import the product barcode data into the barcode software Double-click to open the Zhonglang barcode software, create a new label paper according to the actual size of the label paper, and set the actual paper size and layout parameters;

Then click the "Database Settings" icon in the upper toolbar, click "Add" to select the corresponding type of database according to the prompts, and then click Browse to import the Excel data file and click "Test Connection" to load the data

3. Draw a barcode and add variable data Click the "Barcode" icon in the left toolbar, draw a barcode style on the canvas, and double-click to open its "Barcode" window, and modify the default barcode type to EAN13 product barcode:

After <> product barcode data is added, you can see the check code that has been automatically generated, the barcode display data is one more check digit data than the original data in excel, after the product barcode data is added, you can click the print preview button in the upper toolbar to view the preview effect, you can turn the page to view, you can click the icon after checking, and connect the printer to print in batches:

Barcodes are a must-have for today's goods, and now it is difficult to circulate in the market without barcodes! Barcodes are required both online and offline. Having a barcode is equivalent to having an ID card.

Each barcode represents all the information of the product, such as **, raw materials, origin, etc.!

An code is made up of a prefix code, a vendor identification number, a product item**, and a check digit. The prefix code is the international EAN organization to identify the member organizations, 690-695 in China, and the manufacturer is the EAN coding organization assigned to the manufacturer on the basis of the EAN allocation prefix; The commodity item ** has its own manufacturer's own code, and the check code is to verify the correctness of **. When compiling commodity items**, manufacturers must comply with the basic principles of commodity codes; The same commodity item must be prepared for the same commodity item**; Different commodity items must be prepared for different commodity items.

Ensure that the commodity item corresponds to its identification one-to-one, that is, there is only one commodity item, and one commodity item only identifies one commodity item. China's general commodity barcode is equivalent to it. The barcodes printed on the packaging of the goods we buy every day are generally EAN codes.

EAN codes have the following features:

1.Only numbers can be stored.

2.Bi-directional scanning process, i.e. barcodes can be scanned from left to right or right to left.

3.There must be a correction code to prevent errors in reading the data, located on the far right of the EAN code.

4.Having left, center, and right guards, as well as splitting different parts of the barcode and capturing the appropriate safe space to handle.

5.The barcode has a certain length and is less flexible, but it can be used in all countries of the world through appropriate pipes.

6.According to the different structures, it can be divided into:

EAN-13 code: It consists of 13 numbers and is the standard coding pattern of EAN.

EAN-8 code: It consists of 8 digits and is a simple coding type of EAN.

Commodity barcodes are barcodes for retail goods, non-retail goods, and logistics units. The coding of the commodity barcode follows the principle of uniqueness to ensure that the commodity barcode is not repeated in the world, that is, a commodity item can only have one, or one can only identify one commodity item. Different specifications, different packaging, different varieties, different **, different colors of goods can only use different products**.

The commodity barcode is the basic identification of the product information of the enterprise, and the specific barcode center is issued after the audit of the enterprise! The commodity barcode is composed of numbers and vertical bars, including product identification code, product information code, and product check code!

Product barcode application.

It is equivalent to the admission ticket number and personal information barcode in the traditional examination, in order to ensure that the candidate's information is quickly and accurately identified.

After receiving the barcode, the candidate should first confirm whether the personal information on the barcode is consistent with his or her own information, and then paste it to the designated position of the answer sheet.

It's the following**, like the barcode of our goods.

Pasting a barcode is a very simple thing, as long as you are not nervous, you can understand that the operation is very simple. If the barcode is crooked or broken, do not tear it down to avoid damaging the answer sheet, and it should be handed over to the teacher for disposal.

Candidates should keep the barcode clean and complete, do not write on and around the barcode, carefully check the barcode pasted by the invigilator, and if the name and seat number printed on the barcode do not match the candidate, they should immediately raise their hands to report.

If the barcode is sent by mistake and has not been pasted, the invigilator should immediately replace the wrong barcode with the correct one, and the candidate will proofread and repaste.

If the barcode is sent by mistake and the candidate has already pasted it, the invigilator can ask the candidate to tear off the wrong barcode and small potato heart. If it can still be used, the invigilator will replace it correctly, and submit it to the candidate for proofreading before pasting. If it cannot be used, there is no need to paste it, and the examiner will indicate it in detail in the record column of the answer sheet.

Nowadays, all the food sold in the store has a food barcode. Generally speaking, the barcode of food is divided into 4 parts, from left to right, respectively, to judge, the order is fixed, by.

Composed of 13 numbersDivide into several groups and give examples to illustrate 6942722500168

The top three in the first group: 694, is one of the countries of China.

The numbers in the range of 690-695 were assigned to China by the international community.

Second group 4-8 bits:

27225, these five numbers represent the manufacturer, which is the five numbers assigned to the merchant by the state, and the merchant is exclusive.

The third group of 9-12 digits: 0016, these four numbers are the goods in the factory**, this ** is given by the manufacturer according to the situation of the sales of their own, the degree of freedom is relatively high, but it is also the most important one of the anti-counterfeiting loss rock destruction**.

The last digit of the fourth group of jujube wheels: 8, this is the check code of the barcode, this check code is calculated by a random calculation method, and the first 12 numbers are the result of the basic calculation.

Looking at the current food barcode, there is already a very comprehensive information, very accurate verification and calculation methods, which is an important means for us to protect our food safety.

China Article Coding Center**.

1. At present, the International Article Numbering Association (GS1) has assigned the prefix code between 690 and 697 to the China Article Coding Center to make it easy to use, and usually the manufacturer identification that begins with these prefixes is assigned and managed by the China Article Coding Center; Those that start with other prefixes are the responsibility of the foreign GS1 member organizations, which are generally called"Foreign barcodes"The following provides you with a query tool for foreign commodity bar code information, please follow the prompts for relevant inquiries.

2. This query is only applicable to the barcode information of commodities registered outside the People's Republic of China.

The ** mark of the product. Numbers are represented by black and white lines of varying thickness, printed on the product packaging, and used for computer identification. Also called barcode.

A barcode is a graphic identifier that combines multiple black bars and blanks of different widths and arranges them according to certain coding rules to express a set of information. For each item, its barcode is unique, which can indicate the country of production, manufacturer, trade name, production date, book classification number, mail start and end location, category, date and other information. Webers barcode.