Double barcode or QR code. Double barcode - own data base

It is important to have more modern scanners to recognize all standard linear barcodes, including such codes asUPC / EAN, Code 39, Code 128, Codabar, 2 of 5 Interleaved (ITF) , as in the past 20 years, accepted as global European standards, and other symbols, created for use in the higher spheres of activity. Double code, for example, Aztec, DataMatrix, QR and others, zocrema, linear and stacked, can decode more than matrix photo scanners.

As you work in the sphere of retail trade - products of food, clothes, books and other goods of the people's food, better for everything, you need to get a “stunning”, laser scanner, the oscills can be right, most importantly with symbols ISSN , which are technologically the same) and D codey D and you are all sovereign. About the whole thing.

So, as you have come up with scanners (light or laser) for reading linear symbols, then for reading D If you need a code to get matrix photo scanners, First of all, blame the food for those where the “old” go, the shards of their functions successfully overlap the “new”. Before that, photo scanners, as a rule, are more expensive.

As for now, you need to read only linear barcodes, but in the future, it’s possible (or not), more two worlds with stacked ones, but you can use two more arguments and you can’t compromise the solution, we can try to shut down over the cym at once. Pochnemo s short liknepu. Otzhe…

How can I use barcode types?

There are two types of barcodes:two worlds (2D).

Linear code (picture below) - a sequence of parallel black and white smugs of different widths. Dark smugs are called strokes, and light smugs are called gaps. The information is strictly specified, the width of the strokes and the spaces are standardized, as well as the number of strokes is clearly defined one by one.

Oskіlki such a code is read only in a horizontal direction, the "tightness" of the code is explained by the ability to read at a glance, and the recognition of random symbols. The power of the code is also called "vertical overworld".

You constantly stick with such codes in everyday life. Largest wide line codes EAN, UPC, Code 128, Interleaved 2 of 5 and family of codes GS 1 DataBar (ex-ESS ). The process of reading such a code is the simplest one with a laser scanner and you can check the pictures right for the whole text.

The two-dimensional code is to remove information both horizontally and vertically. In fact, whether any other text is an analogue of the two-world code. Shards of resentment directly avenge information, use the possibility of victorious vertical superficiality. Here b the fight for pardons is safe to finish simply -more two-way codes are made up of special control sums that allow you to guarantee the reliability of the information to be entered.

The high speed of decoding of two-way barcodes is ensured by the help of photo scanners, which allow the camera and special decoding firmware.

A bunch of two world codes were split up for supplements, so as not to give enough space for the placement of a barcode sizable identifier. The first stop for such symbols was the packaging of medicinal products for the protection of health. Qi packing is small for sizes and there is little space for placing a barcode. The electronic industry also shows interest in high-width and double-width codes in connection with changes in the number of elements and types.

Poznіshe mozhlivіst koduvannya portable database zrobila dvuhіrnі symbolіki privablivimi dodatkіv, in some minimіzatsіya rozmіru code ceasing to be the main vimogoyu. For example, saving the name, address that other information on cards. If a card is to avenge less than an identifier, which is the key to the data base, then it is imaginary that a sprat of cards can be found with a great data base, to avenge millions of names. Tse vimagatime great expenses for computer processing and saving such a base. Yakshcho all important information will be instructed at once with the seal of the proposition on the cards, then zbіlshennya vitrat not vydbudetsya, and іnformatsija will be svvidko entered from the card on the computer.

Today, over 20 different symbols of two-world barcodes have been split. The most popular Aztec, Data Matrix, QR Code and MaxiCode . All stinks are actively victorious in manufacturing, logistics, warehouse appearance, pharmaceuticals and health care, banking, utilities, etc.

The reading of barcodes is carried out for the help of special attachments - reading the barcode. They can be scanners, data collection terminals and call mobile phones with special installed software security (but with low productivity).

The principle of robotic zchituvachіv polagає at the transformation coded graphic information, presented in a seemingly sequence of contrasting smog or squares, alphanumeric.

Vishche right butt submissions Aztec code from coding instructions. You can rahuvati yogo for help mobile phone the same amount of encoded information with the line code from each distribution. In both vipads, the phrase hello world !”. For a reason, you can read W. Blake's verse “ tiger ”, encoded at QR -Code. The originality of the vykonannya was only called to show the possibility of self-correction and readability to instill in such a non-contrasting and “overwhelmed” design.

Why 2D?

Irrespective of those that linear barcodes continue to be victorious in industry, trade, logistics, document management and health care, more and more popularity is gaining double symbolism. Tse zoomed out by such factors.

First, it specifies the type of encrypted information. Linear symbols can hold up to 30 symbols (deposit in a specific code), while two-way building savings can hold approximately 1.5 sides A 4 texts. 2D Symbols step by step become the standard for such areas of human activity, as the protection of health and craftsmanship (especially small and unique details, as well as microcircuits).

A barcode can be used as an identifier (the key to the data base) and as a carrier of information (the data base itself).

For the first type, it is necessary to encode a small amount of information, which is given by a linear code. The butt of such a universal code can be Code 39, coded digits and small Latin letters and extended version Code 128, with the possibility of encoding these formats ASCII.

The other one has a double barcode. Most extended standard - code PDF 417 (quasi-2D ), the shards of this voicing do not require licensing, the vin is widely expanded, and, also, it is also soft for yogo recognition (the ability to encode approximately 2500 characters).

At the next article go about

Barcode

Barcode (barcode, barcode) - the sequence of black and white smugs, which presents information to the deuce for the reader to read technical means look.

Ways to encode information

Linear

Linear barcode

Linear (variable) barcodes are called, which are read in one straight line (horizontally). The widest range of line symbols: EAN (EAN-8 consists of 8 digits, EAN-13 - 13 digits), UPC (UPC-A, UPC-E), Code39, Code128 (UCC / EAN-128), Codabar, "Interleaved 2 of 5". Linear symbols allow you to encode a small amount of information (up to 20-30 symbols, call numbers).

Dvovimirnі

Symbols are called dvovimіrnymi, razroblenі for coding the great communication of information. Decryption of such a code is carried out at two vimirah (horizontally and vertically).

Two-code codes are subdivided into stacked and matrix codes. Different barcodes appeared historically earlier, and were put one on one spear of the strongest line codes. Matrix codes pack information elements vertically.

In this hour, anonymous two-dimensional barcodes have been broken up, which can be fixed with the same latitude. Axis deakі kody:

• MaxiCode
• QR code

radio omits

Okremo varto bulo used to indicate the code from 200 to 299. That is all codes that start from the numbers 2. Use the code for internal selection of enterprises for power purposes. Whether it be the acceptance of any regions of the world, as well as private individuals, they can win over them in a good way, according to the ruling court, and only for their internal purposes. The selection of these codes beyond the borders of the enterprise has been fenced. Vnutrіshnіy zmіst kodіv, scho start from 2, you can pіdorderkovuvatisya be-yakіy logіcі, yak set those chi іnshe pіdpriієmstvo for yourself (named ce pіdpriєmstva rozdrіbnoї torgіvlі), і you can mіstiti cshіnі chi vаguіyіkіkі. Especially ce coding zastosovuєtsya for vagovogo goods. Qi code can be victorious whether it is business, moreover, stench is not specifically registered anywhere and is not regulated by third-party organizations.

Registration number of the virobnik. Another logical group of numbers is the code of acceptance of the picker for the sale of goods. Call, VIN borrow 4-6 digits, so for the skin regional prefix you can be registered from ten thousand to a million businesses. Dovzhina ts'ogo field fallow in the policy of regional representation. In a number of regions of the rozmіr tsgo field, lie down in the form of equal payment of membership contributions. The problem pov'yazana z scho, scho dovzhina tsgogo field bіlsha, then you can zareєstruvati bіlshe pіdpriєmstv, but with cimu skin pіdpriєmstvo vid_lyaєtsya mozhliv_st reєstracії menshoї kіlkostі goods. Tobto yakscho code pіdpriєmstva to become 6 digits, then the skin pіdpriєmstvo vid_lyaєts prostіr for reєstracії 1000 units of goods. Early Russian predstavnitstvo vydіlyalo yak pіdpriєmstva code 4 digits, і todі for coding the product pіdpriєmstvo little mozhliv_st reєstracії one hundred thousand units of goods. At 200X roci rosіysk representative office adopted a rіshennya about vidіlennya for newly created pіdpriєmstva 6 digits pіd code pіdpriєmstva і 3 digits pіd product code. Ce bulo zumovleno tim, sho bіshіst pіdpriєmstv vypuskaє less than 1000 product names, і ce bulo b rozumnіshim krok to bіsh ekonomnogo vіtrachannya kodіv.

Target 2 D code or QR code - like a barcode - ask the robot for the goods.
I’ll show you, yakbi pіd the hour of the receipt of the goods, the comіrnik uruchnu enter all the information - the date of the harvest, the country of the harvester, the order, the warehouse is empty. The acceptance of one single product, having borrowed a greater part of the yogo working hour.
And so it takes 0.5 seconds - a special barcode scanner reads the code and takes all the information in its database.

Why the 2D code itself?

Zvichayny barcode may "vertical overworld", which means that the same information is repeated vertically. This is a true single barcode. stroke height can be changed without wasting information. However, the vertical overhead allows the barcode, which may have defects and other (for example, flames or enlightenment) to protect reading.

Two-dimensional 2d code to remove information both horizontally and vertically. In fact, all alphabets are analogous to the two-world code. Shards of resentment directly avenge information, use the possibility of victorious vertical superficiality. For the sake of the loss of readability and the safety of the speed of reading, another technology may be used. It's easy to fight for pardons - more double codes can be obtained with special control sums that allow you to guarantee the accuracy of the information to be entered.

And with the introduction of 2d QR codes it became possible to encrypt more information, taking at least a month.

A bunch of two world codes were split up for supplements, so as not to give enough space for the placement of a barcode sizable identifier. The first stop for such symbols was the packaging of medicinal products for the protection of health. Qi packing is small for sizes and there is little space for placing a barcode. The electronic industry also shows interest in high-width and double-width codes in connection with changes in the number of elements and types.

PDF 417

The PDF417 stack symbology was introduced in 1991. PDF looks like a shorthand Portable Data File (Portable Data File), the barcode symbol is composed of 17 modules, the skin for which 4 strokes are scanned (star number 417). The barcode is valid for the hard copying.

The structure of the code supports the coding of the maximum number of 1000 to 2000 characters in one code with the information width of 100 to 340 characters. Skin code to replace the start and stop groups of strokes, which increase the height of the barcode.

Code PDF417 can be read with the help of a special laser or CCD scanner. For a different code, follow the selection of printers with a garnish distribution building (thermal transfer or laser).

Aztec Code

Aztec Code introductions by Andy Longacre from Welch Allyn Inc. 1995 rock and voiced for the infamous victoria. Aztec Code decryption for easy friend and easy decryption. The barcode is a square matrix with concentric squares in the center, which serve to mark the position of the scanner code and a linear line along the edge of the code. The smallest Aztec barcode has an area of ​​15x15 modules, the largest is 151x151. The minimum Aztec code is 13 digits or 12 letters, and the maximum is 3832 digits or 3067 letters or 1914 bytes of data. The symbology does not require a free zone around the barcode. Іsnuyu 32 gradation of the code with the possibility of setting the defense against pardons for the Reed-Solomon method in 5% to 95% in the area of ​​the code. The recommendation rate is 23% of the code capacity plus 3 code words.

All 8-bit values ​​are encoded. The values ​​0 - 127 are rendered as the ASCII character set, the values ​​128-255 are rendered as ISO 8859-1, Latin Alphabet No.1. In Crimea, you can encode two service symbols: FNC1 for summation with actions basic programs and ECI (escape-sequence) for standardized wakeup coding.

data matrix QR codes

Code Data Matrix by CiMatrix two world code divisions for the distribution of the great obligatory information on the surface area. The Data Matrix barcode can be entered from 1 to 500 characters. Code can be scaled from 1-mil width to 14-inch square. This means that the Data Matrix code can have a theoretical maximum thickness of 500 million characters per inch! In practice, space, obviously, is separated by separate buildings from other outbuildings and scanners.

Code tsіkavih idiosyncrasies. The oscillating information is encoded by the absolute position of the element in the middle of the code, that is. position between codes, the code is not as sensitive to defects as a traditional barcode. The scheme of coding may have a high rіven of supermundane, given a pink heart in the middle of the symbol of the barcode. Tse allows you to save the reading of the code in case of some part of the code. The leather code of the maє vymіryuvalnі іnіyki, yakі You will marvel as a strong line along one edge of the symbol and evenly stashed square dots of the same size along the other edge. The numbers of the lines are victorious for the purpose of choosing the orientation and width of the code.

There are two main character sets. The stench of victorious coding for the correction of pardons, as it was in the first versions of the Datamatrix code, and in the version described as ECC-000 .. ECC-140. Another set of descriptions is the ECC-200 and the Reed-Solomon method for pardon correction. Symbols ECC-000.. 140 always have an unpaired number of modules on the skin side of the square. Symbols of the ECC-200 should always cover the number of elements on the skin side. The maximum capacity for an ECC-200 symbol is 3116 digits or 2335 letters for the symbol, which is made up of 144 modules.

The most popular marking for Datamatrix is ​​the marking of small items, such as electronic elements. drukana pay Electronic accessories. The Datamatrix code has a capacity of approximately 50 characters per code size of 3 mm and the fact that the code can be read for 20-hundred contrast ratio to each other.

The code is read by a PZZ camera or a PZZ scanner. Characters with an area of ​​1/8 inch to 7 inches can be read from a contact up to 36 inches. Zvichayna speed of reading to become 5 codes per second.

Por_vnyalnі pіvnyalnі characteristics of 2d code with other options for encryption of information.

Correction of 2d codes.

Oleksiy Maksimov

All of us have already called to stationary or compact hand-held terminals, for the help of some sellers of self-service stores, barcodes are applied on goods. As a rule, this procedure will speed up the execution of the purchase and facilitate the computer appearance of goods.

The role of the barcode is important to reevaluate. Aje label with strokes to remove the basic information from your own - posting a position in the computer database, which takes all the information about the product (name, type, type, etc.). Portable terminals for reading these codes are widely presented on the Russian market (div., for example, PC Week / RE, No. 10/98, p. 29), so trade enterprises can effectively choose.

Signs of two-dimensional barcodes

But the technology does not stand on the job, to replace one-dimensional barcodes and devices for their application and reading two-world barcode that kind of possession. At the CeBIT'98 exhibition, I turned my attention to the new compact universal scanner QHT-1000 of the Japanese corporation Denso, which belongs to the Toyota Tsusho concern. This device allows you to read and decode both a single-mode barcode (UPC, EAN, ITF, NW7, Code 39 and Code 128) and a dual-mode Quick Response Code (QR Code) code, developed by Denso. But first, let me tell you about the capabilities of this scanner, I will try to briefly explain what a double barcode is.

Trochs of history

The history of two-world barcodes has been developed by two people. First - a creation of matrix codes - was born on the cob of the 80s with the appearance of two distributions: Vericode of the American company Veritec and CP Code of the Japanese company ID Tech. For example, the 80s presented their matrix codes Data Matrix and Maxi Code companies International Data Matrix and United Parcel Services (UPS) apparently. Have 1990 r. The Canadian company Array Tech Systems propagated the original version of the Array Tag matrix code, for which the data were represented by figures of hexagonal and octagonal shapes. Trohi pіznіshe - in 1991. - the matrix code Code One of the American company Laserlight Systems appeared. The Denso company propagated its QR Code in 1994, followed by it in 1995. - the Aztech Code distributor of the American company Wellch Allyn appeared.

Another direct - the creation of quasi-double warehouse barcodes - began in 1985 with the appearance of Code 49 by the American company Intermec, in which you can put up to 8 rows of strokes in the same space that borrows a line code. For example, in the 1980s, there was more distribution: Codablock of the German company Identicode System, Code 16K of the company Laserlight Systems and PDF417 (PDF, Portable Data File) of the company Symbol Technologies (USA). I, nareshti, 1996 The American company Zebra has presented a warehouse code Ultracode claiming to be universal.

With these codes, special respect goes to PDF417. Vіn vikoristovuєtsya in the US Army and other American state services. For example, it can be put on special cards for personnel to identify the individual. Naskіlki me vіdomo, kіlka rokiv that Russian Ministry The defense was occupied with the testing of the code of feasibility of yogo zastosuvannya for the identification of special features of the military logistics. Unfortunately, I don’t know about the results of the project.

Another important feature of the PDF417 code is that the method for correcting Rida-Solomon's pardons was introduced earlier. This method was first developed by mathematicians Reid and Solomon of the Hughes Aerospace company for space probes of the Voyager type and was used to improve the stability of the reception and recognition of a weak and noisy radio signal. For a different two-world barcode, the method ensures that the image is read and decoded, so that the part is zipped (for example, it is deleted or crossed)

Features of two-way barcodes

For a different sizable (one-dimensional) barcode, additional strokes and gaps of different widths are recorded for a different width, the information is read linearly, straight ahead, orthogonal strokes (a double stroke with this informational emphasis is not carried). Sounds screeching obezhennya obsyag іnformatsії - sing vin transcribe a few dozen symbols. The main feature of the two-world code lies in the fact that, in order to save information, there are orthogonal lines on the plane - vertically and horizontally. As a result, for the total amount of information that is taken, the validity of a two-world code can outweigh the validity of a one-world code hundreds of times. If a computer data base is required for an hour of work with a single code, then in cases where a two-world code is blocked, it is allowed to work in such a base, and the code capacity is sufficient for collecting all the information about the object. For whom it is clear that there are two technologies.

Scanner Denso QHT-1000

I respect that two world codes are irreplaceable, for example, in autonomous systems of identification, or, if it is necessary, to save collapsible characters of such languages, like Japanese or Chinese. Almost everything modern technologies two-world codes, for the sake of one-world codes, to avenge the correction of pardons, and, hence, guarantee the great arrogance of the protection of data.

However, one cannot forget about the art. Attachments for folding, applying, scanning and decoding a two-world barcode are richly foldable and, also, more expensive, lower, and wider for line codes. In fact, for pіdtrimuvannymi vows danih that functionality dual-world coding technology borrows space between single-mode barcode technologies and remote identification.

As we have already said, two world codes are stored in warehouses and matrix. Warehouse code is the sequence of line codes, spread out on the same area as the one-way code, in a way to change the number of strokes. Embedded in this code is the simplicity of forms (rectangles of strokes and gaps) that allows you to read it for the help of visually clumsy laser scanners or linear readers. The matrix code is a grid of square modules, often filled with a black barn, with (for the most part) square modules - the middle data. Such a code is entered not by a linear, but by a special Maydan reader.

QR Code - bet on swedishness

During the development of the two-world matrix barcode by Denso, special attention was given to the speed of reading / decoding. Representatives of the company claim that they can reach an order of magnitude higher code - 30 labels per second (skin capacity 100 characters) versus a maximum of 3 labels per second (same capacity) with Data Matrix or PDF417 encoding. The secret lies with the zastosuvannya combined method: it is read at once for all directions, and special position detectors help speed up the decoding procedure (insertion of a square, roztashovaniye at three folds of a label). Zavdyaki zim icons the scanner is easy and quick to sort out as a code, and in the orientation of the label on the flat.

The specification of the QR Code is known in the field of development, but it is possible to judge the main characteristics of the code, for example, using the QR Code Model 2 option. characters (8-bit) or 1817 Japanese movie characters in the Kanji-Kana encoding. It is allowed to encode the sum of data different types. These QR Codes are represented by a combination of black and white dots, skin of which is interpreted as a single data, or a module. The size of the code varies from 21x21 to 177x177 modules (the length of the extension is a multiple of 4). It doesn't matter how much space you need for a label, tієї chi extra capacity. For example, if the code is 105x105 modules, the size of the skin module is 0.25 sq. mm, area area code warehouse 105x0.25 sq. mm = 26.25 sq. mm. Here, you need to add the required fields (with a width of at least four modules). As a result, it is necessary that the area of ​​the labels in the warehouse is (105 +8) x0.25 sq. mm = 28.25 sq. mm.

The method of correction of Rida-Solomon's pardons, which is stored in the QR Code, transfers the addition of a special code with the coding logic to the recording. Depending on the necessary amount of arrears, there are chotiri equal corrections (well, I’m sure that I have to pay more obligations to the total code). Numbers equal, which are marked L, M, Q and H, guarantee the renewal of data, as the area of ​​the printed surface label does not exceed 7, 15, 25 and 30% is clear.

Far from all the features of the QR Code are mentioned here, but in this article we do not put as a date a summary description, those who are interested in this topic can find more detailed information from the special literature or on the website of the Denso company (www.jjpdenso.co.co.co. ).

Universal scanner QHT-1000

Make a code, don't make it hardware security for a job with him, it would be equal to death cіkavoї ideas. To this, the Denso company promotes different ways of applying and reading the QR Code. While it is possible for a friend to write a wide range of label printers, scanners require special algorithms for reading code and decoding the same code. Denso recently vibrated the QS-10H handheld scanner, the QS-10P point scanner and the QD-10 camera decoder. A novelty in this series is the QHT-1000 handheld scanner, which recognizes both a QR Code and the main line codes.

This compact attachment weighing 320 g of equipment has 2 or 4 MB of memory, which is supported by a RK screen with a separate building 128x64 pixels, an infrared IrDA-sum and subsequent interfaces, which secures a wireless computer and data volume. The QHT-1000 has a 16-bit CMOS microprocessor and a 32-bit RISC processor, as well as a 0.25 mm CCD scanner. The scope of the scanning area is stored 38x28 mm.

You can expand the QHT-1000 software using the BHT-Basic 3.0 proprietary toolkit. For this purpose, I have created the Ir-Transfer Utility infrared exchange utility, which is installed on the host computer, as well as Easy Pack Q, which is recognized for collecting data, viewing QR Codes and linear barcodes.

Visnovok

The technologies of two-world codes have already been occupied by great international corporations and have established wealthy countries, victorious main advantages - high capacity, autonomy, compactness, protection and recognition of standards. All possible spheres of zastosuvannya, maybe, and do not pererahuesh. Nasampered tse logistics, craftsmanship, technical services, medicine different systems security, for which it is necessary to identify the specifics and control access rights. The QR Code technology, for example, has been introduced at car factories to the Toyota concern, the parent company of Denso.

The author of the article can be contacted at: [email protected]

Mayzhe is dumb. In Denmark, there are more than 50 types of one-way barcodes (1D) and more than 70 types of two-way barcodes (2D). This means that for another barcode behind the label printer, it is necessary to clearly identify the method of creation. For an optimal choice, it is necessary to understand what kind and type of barcode for which it is selected, if it is necessary to transfer and not share that other barcode and what is available for matching to another.

Which barcode to select for a friend? One-world (1D) or two-world barcode (2D), advantages and disadvantages:

1D barcode (single-dimensional)

A one-world barcode is a little thing from a linear different comradeship, which is called linear. A linear barcode encrypts information in just one widder (sound horizontally). It is less than a dozen days to scan. Recognition of one-dimensional barcodes is given quickly and with a smaller number of pardons.

Extended one-way barcodes:

EAN-13 and EAN-8;

UPC-A and UPC-E;

Code128;

code39;

GS1 databar.

Advantages:

Universality and breadth of 1D barcodes.

For coding short information about the goods or for the service of automating the trade turnover, the installation of linear barcodes is rationally justified. Possibilities for reading most of the most popular single-width barcodes of the widest.

Noodles:

The maximum you can save is less than 30 symbols of information;

Avoid ASCII characters (American Standard Coding Table characters for other characters and other special codes);

There is a great expansion of the linear barcode (small efficiency of the vicarious space);

Stronger ushkodzhennya barcode significantly reduces the readability.

Thus, the choice of one-dimensional barcodes can be recommended for trade enterprises of various distributions and directives, for selection, for carrying out inventory and other areas.

2D (two-world) barcode:

A two-dimensional code to remove information from both a horizontal and a vertical world. More 2D barcodes have come to the fore, but we don't call the "barcode" code. This name was passed on to them as "young brothers" - one-line codes.

A 2D barcode has a type of coding method ( see double barcode). The most popular three:

Linear overlay 2D barcode. 1D barcodes one on one vertically, for example, Code 16K, Code 49, PDF417;

Matrix 2D barcode. Overlays of black and white images in the middle of the matrix, for example Aztec, Maxi Code, QR Code, Data Matrix;

Postal 2D barcode. Koduvannya polagaє at poddnanny muzhok raznoy dozhina. The most common vicorist postal service. Apply: Postnet, BPO 4-State, Australian Post Code.

Before often zastosovuvannyh dvіrnyh kodіv vіdnosya:

Data Matrix (sound for details of electronics);

Maxi Code (created by the delivery service "UPS" for the delivery and processing of benefits and parcels);

Aztec (decomposed by "Welch Allyn" and can accommodate up to 3832 digits or 3067 characters or 1914 bytes of data);

QR Code (QR = Quick Response (Swedish code). Invention in Japan, by the company "Denso Wave" in 1994. It can accommodate up to 7089 digits or 4296 characters and type less pardons when reading, lower one-way barcodes. QR-codes at a time even more popular, call victorious, for the purpose of collecting information, in order to avenge the price - to avenge data about sending to any web resource, address, or a virtual business card, data about a ticket or an electronic card number, code;

Vericode, PDF417, Ultracode, Code 49, Code 16K and others.

Decoding of two-dimensional barcodes is carried out by special photo scanners (image-scanners or images), raster scanners or through a camera, for example, a smartphone with a built-in special software security. Respect! Do not work with 2D barcodes, as for the one for whom the stench is intended, you can not do it!

Spheres for inserting a two-world barcode (on the application of a two-world barcode PDF417):

Transportation

Call for a delivery scheme for something expensive, including a postal worker, a transport agent, a transport company, and a terminal client. At the transition of vantage, one to another time, documents and documents and/or accounts are folded up, so that they can get a lot of information - about vantage, a lawyer, an oberzhuvach. If I work manually, then it takes an hour to call pardons.

With a different version of a two-world barcode, all this information can be encoded. Entering a barcode on supporting documents is not particularly difficult, but you can apply it to the vantage by overlaying the sticker on the label printer. This solution improves the efficiency of the work.

Dedication of an individual

First, the PDF417 barcode for identifying the specifics of the letters used by the US Army. The new one encoded information about the name, ringing, photo and other information. It is important to note such a person’s memory, and the barcode is left readable, so it’s a little bit sloppy. Confirmation of an individual for the help of such a card, or for other evidence, we can apply a barcode to you in any sphere.

Documents and call

The Japanese insurance company "Seimei Insurance Company" was the first to download PDF417 for encrypting information on special customer references. At any time, you can send a document with a double barcode to the scanner and enter information on the computer screen with a data base.

Inventory

Whether a company can encode information about its own asset, develop a label with a barcode on the label printer and stick it on the asset itself. Otzhe, the operation of carrying out an inventory of chi to the asset will be significantly simplified. The most efficient way to automate inventory is to use one-dimensional linear barcodes. Reading and re-verification of information from stickers on actives is carried out for the help of a barcode scanner or a data collection terminal.

Composite 1D and 2D barcodes

One and the same world and two world barcodes can be combined together. First, for example, for the registration number, and the other - for coding all data. If one and two barcodes are combined - if one image is ordered, then such barcodes are called composite.

Otzhe, what type of barcode to select for another on a label printer? In principle, everything is simple here: there is little information and the simplest way to decode (light or laser scanner) is to work with a single barcode. As well as a lot of information, and you know what you can decrypt - then, without hesitation, choose a double code, for example a QR code, Datamatrix or PDF417.