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Need to start from the principle of barcode encoding,
Barcodes are a certain string of characters (number + letter combinations such as B2009A) through the code + conversion,
into a bar + empty between the image;
Bar code printer to print out the bar code label is the realization of the string conversion image (bar code in the label) of the process;
The image and the string of the code corresponds to the recognition of the optical device can be decoded,
These optical devices are your common scanner or scanning gun, and the bar code is the same as that in the bar code;
These optical devices are the same as that in the scanning gun.
These optical devices are the core components of your common scanner or collector.
For example, the scanner gun recognizes the bar + empty image through its internal optics, and then decodes the string,
and then outputs it to a computer port (USB or serial), where an application program can go to the port to read the string corresponding to the bar code,
and then do the application logic processing (e.g., querying the price of the clothing style corresponding to that bar code, the manufacturer, etc.). .
Barcodes can represent characters, numbers, symbols and other information; common about two dozen kinds: such as EAN-13, Code39, UPC-A and so on.
Barcode labels on the barcode is printed by the barcode label printer, each barcode and a set of barcode number corresponds to,
Different code system and the number of different barcode graphics printed.
Barcode recognition machine (such as barcode scanner, collector, etc.) is through the recognition of bar code graphics for decoding;
Barcode graphics below the number is in order to see the bar code represents the value of the print up, mainly for the human eye to read;
Barcode graphics below the number of recognition machine is no matter.
In short, the general process is:
Barcode digital-> printer printing-> barcode graphic labels-> affixed to the item-> scanner item barcode graphic-> scanners to identify and decode-> to get the barcode digital-> the system uses the processing...
Goods code is the external public bar code, you can apply to the National Article Numbering Center to apply for a general commodity bar code, using EAN-13, how to code there are fixed rules;
If it is for internal use, you can also use the internal bar code, that is, according to the use of your code can be used, if you want to be unique, then you can use the product number + date of production + running number, if it is the management of the lot, then you can use the product number + production lot, the production lot can be used. Can be used product number + production batch ... Then use the barcode printing software + barcode printer to make it!
Barcode encoding methods and applications:
1 Do not think of the barcode is too deep and omnipotent, barcode is a set of strings,
It itself whether there is a meaning, what is the significance of what it stands for, it is designed by the applicant,
and the document number is similar. Except that the barcode can be graphical, and can be scanned to eliminate manual entry.
2 Barcode can be divided into commodity code and internal code,
Commodity code: it is EAN13 code, which is managed by the national coding center,
it is used to indicate a specific manufacturer and model of products,
generally consists of the manufacturer, product code, price, etc.,
Commodity code, because it is managed by the coding center, it can be scanned and identified in the major shopping malls and stores. The product code is managed by the coding center and can be scanned in major shopping malls and stores for identification.
Internal code: that is, according to their own needs within the enterprise free design of the bar code,
No uniform rules, can be used in the employee ID, equipment ID, product ID, product packaging ID, raw material batch number and so on;
how to make up how to make up anyway.
You may ask, how to recognize the information in it?
The barcode can contain the necessary information in itself, like a commodity code,
or just a unique number (such as the date + flow number),
and then in the issuance of the barcode in the backend database to store the ID corresponding to the full information,
so that when the system is scanning the barcode can go to the database to find its corresponding information, making it meaningful. information, making it meaningful!
3 single product code, batch code, class code
a, the bar code can be unique, such as each product to give a unique bar code, this is a single product code, the number is 1;
b, the bar code can also represent a batch of items, such as a batch of raw materials, this is the batch code, the number can be greater than 1;
c, the bar code can represent a class of items, such as for a certain batch of raw materials, this is the batch code, the number can be greater than 1;
c, the bar code can be can represent a class of goods, such as different brands, models, specifications for the issuance of products corresponding to the bar code,
Quantity needs to scan the bar code and enter;
Barcode is a number, its meaning lies in how you design and use, I don't know, whether to understand!
Manufacturing barcode:
1 can be ordered from the barcode label manufacturer, tell your style requirements and quantity, can be; (contact LENX)
2 buy their own barcode printer + barcode printing software to print their own barcode software CodeSoft, LabelMatrix, etc.;
(of course, if) (Of course, if the issue of bar code has some special requirements to deal with, you can find a bar code software company to do a bar code printing software)
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From: Guangzhou Traceability - Internet of Things, enterprise mobile applications, traceability and warehousing, bar code and RFID software