How to use a QR code: ways, possibilities

Russians have learned relatively recently what a QR code is, although it was invented back in the distant 1990s. The kewar code became widespread with the advent of smartphones that can read data encrypted in a two-dimensional matrix.

In the article we will look at information about the ways of using QR codes in the modern world, why it is needed, how to pay for goods and services using QR codes.

Features and meaning of the QR code

What does the qar code look like? The QR code is based on a matrix with a pattern consisting of modules, the number of which depends on the amount of information stored, as well as additional data required for its recognition by smartphones.

The composition of the QR code:

• positioning (label, with which the scanner recognizes the position of the code);
• version number;
• format (data organization method).

The information is contained in vertical and horizontal formats. In the quarcode, you can encrypt more than 7 thousand digits, more than 4.2 thousand characters (including Cyrillic), about 1.8 thousand hieroglyphs, 2953 bytes in binary format. The built-in error correction system allows you to restore information when it is damaged by up to 30%.

The main feature of the kewar code is that it is decrypted using a smartphone (using a camera or a special scanning program).

QR Code value:

• a large amount of information can be encoded in it;
• data is read in 1 second;
• information is stored compactly;
• information is additionally protected.

QR Code Features

When using a kewar code, financial transactions are simplified (quick payment when synchronized with a bank code, work with an online sales register), new customers are attracted to the product (quick click on the link to the company's website), cashback programs work, you can orient users by geolocation of planned events (concerts, promotions, events).

Using a kewar code, they encrypt:

• contact information for later saving on a smartphone or computer;
• Internet addresses and e-mail;
• phone numbers, when switching to which you can immediately make a call;
• texts.

Where is the QR code used?

Due to the fact that a large amount of information can be obtained in a few seconds, the kewar code is actively used in almost all spheres of life. With its help, they sell goods, make payments, travel, publish large articles in periodicals. And all because to make a qr code in the generator is very simple.

QR code can be found at public transport stops (links lead to bus and trolleybus schedules), on billboards (advertising leads to the manufacturer's website), posters of cinemas and theatrical productions (you can immediately buy a ticket to the premiere). They have become a design element and are applied to branded garments, bags, accessories.

There is no need to buy an e-ticket anymore. You receive a QR code via SMS and present it at the railway station or at the airport.

Widely uses the capabilities of the QR code "Russian Post", tracking parcels and mailings by kewar code has long ceased to be a curiosity.

In the tourism industry, kewar codes are used for attractions. This means that every tourist can organize an individual tour for himself, using an interactive guide. For example, a QR code is placed near a museum exhibit or a landmark. By clicking on the link, you can learn a lot of interesting things about them.

Fans of trying their luck in lotteries can check the ticket by the kewar code: whether the draw took place, whether the purchased ticket won, what is the winning amount, etc.

The kewar code can also be used to verify the authenticity of the purchased product. This is especially true with regard to medicines and health products. You can check the medicine by the kewar code online today in a matter of seconds, which guarantees the preservation of well-being and will save you from buying counterfeit.

The use of QR codes has become especially relevant during the pandemic, when they are used to control the movement of citizens, their contacts with other people, thereby preventing the spread of coronavirus.

Payment by QR code: how it works

The ability to pay for goods and services using kewar codes does not lose popularity. This is very convenient because it simplifies many financial transactions and allows you not to carry large amounts of cash with you. Paying for purchases, paying off fines, making mandatory payments on receipts is not a complete list of possibilities.

A QR code can be used to pay for housing and communal services or taxes. To do this, you do not have to manually enter bank account details − you can simply click on the link and perform the operation.

With this method of contactless payment, funds are transferred from one account to another by scanning a QR code with a mobile application. The seller provides the buyer with a kewar code, and the buyer, in turn, scans it, enters the payment amount and confirms the operation. Such payments greatly simplify electronic money transfers in stores.

Creative use of QR codes

Researchers of kewar codes have come to the conclusion that the use of this technology in different parts of the world has its own characteristics associated with differences in culture, mentality, psychophysiological characteristics of different peoples. Thus, more pragmatic Europeans, who tend to think with the left hemisphere, use QR codes much less often than Asians. Among Europeans, matrix coding is more common in areas related to verbal communication.

Asians use kewar codes in the most unexpected areas and unusual places, which is probably also due to the linguistic features of their cultures (for example, hieroglyphic writing).

In the Land of the Rising Sun, the facades of buildings, in particular shopping malls, are decorated with QR codes. If you point the iPhone scanner at the code, you can find out all the relevant information about this building, see the people who are inside, read the comments. From the application, you can also learn about current sales, discounts and promotions and even become the owner of a discount coupon.

In the same Japan, the kewar code has become an integral part of the entry visa for foreigners.

An unusual gift for the wedding of the newlyweds were T-shirts, on the back of which are encrypted congratulations to the newlyweds. Such presents are often ordered today for various celebrations. As encrypted wishes, they take postcards, posters and even order outdoor advertising.

Links for downloading files, music, and videos are gaining popularity, after which you can use an additional program to switch karaoke melodies in automatic mode.

On social networks, in particular Facebook, you can notice unusual invitations to friends in the form of kewar codes. By clicking on them, you can go to the user's page and make friends with him.

Watchmaker Michael Ciuffo came up with a creative watch that has a QR code on the dial instead of numbers and hands. To find out what time it is, an application is launched on the smartphone to decrypt the code and scan the display, after which the time is displayed on the phone screen.

The tradition of displaying your personal data on business cards is gradually becoming a thing of the past. Now business visit cards with a QR code are in fashion, in the form of which personal information and contact details are presented. By pointing the scanner at the QR code, you can automatically add a contact to the address book and make a call.

Tattoos in the form of QR codes have become one of the ways to stand out and show your personality. They have to be filled very carefully, masters need to be real jewelers, because each element should be carefully drawn (just one mistake − and the kewar code does not count). Moreover, you can make both temporary and permanent, and links can lead to a clip of your favorite song, a page in social networks or a personal website. They even produce transferable tattoos with personal QR codes for those who have been vaccinated against coronavirus, so that they can be presented at the entrance to a restaurant or other public places where they are not allowed without a certificate.

QR codes have penetrated into the world of the deceased. They began to be depicted on tombstones, having entered all the information about the deceased into a matrix code. This is convenient both for maintaining a cemetery database, and for those who want to learn more about what the deceased was like during his lifetime.

The study of the psychological impact of the urban environment dates back to the 1950s and is called psychogeography. Its essence is that a kind of psychological portrait is drawn up for each urban object from associations, events that took place here, memories associated with this place. Today, such objects (parks, streets, buildings) they began to assign a code instead of the yellow arrows with which they were designated earlier. On the Internet, all information about any object can be supplemented with your own. Thus, by clicking on the link to which the QR code leads, you can not only read the information, but also post your own.

According to the same principle, Semapedia works − a site where real objects are intertwined with virtual ones after assigning them a QR code and connecting it with an article in Wikipedia.

The scope of application of QR codes is quite extensive. With the development of mobile communications and the ubiquity of gadgets, they have become widely used in the consumer environment. To read encrypted information, pay for many services, purchase goods, it is enough to have a smartphone or iPhone with a camera or an application for scanning QR codes. They are convenient and easy to use.