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What is a two-dimensional code? Small logo big world

Release Time:2020-07-21

Two-dimensional code is no stranger to everyone: add friends, scan two-dimensional code, pay for payment, scan two-dimensional code. With the increasing popularity of smart phones, everyone can carry a two-dimensional code recognizer, which solves the problems of terminal decoding, equipment laying and data networking.

　　

 

Common two-dimensional bar codes are: QR code, PDF417 code and DM code. Related Reading [Classification and Characteristics of Two-dimensional Barcode]]

Small logo big world

The application of QR codes seems to penetrate into all aspects of life overnight. Elevator rooms, subway stations, fast food restaurants, cinemas, billboards, Internet web pages, newspapers, train tickets, air tickets, merchant membership cards and public accounts, business cards, product packaging, etc. More and more places have begun to appear QR codes. Some browser companies have also rushed to join the QR code scanning function, and navigation websites around QR codes have also begun to appear.

Two-dimensional code in electronic vouchers, electronic tags, content links and payment shopping and other aspects of the magic. The anti-counterfeiting traceability function of two-dimensional code on hairy crabs is more reliable than the previous ring. Many exhibits also "put on" two-dimensional codes and "coats" and scan the two-dimensional codes to read the information introduction related to the exhibits on the spot, and can also keep the information introduction in the mobile phone and go home to look closely. The two-dimensional code information of some exhibits also includes website links, which can be "extended to read" Rio de Janeiro, Brazil, with a single click. The sidewalk is paved with the first two-dimensional code made of mosaics to provide tourists with information about the city. Visitors can use their smartphones or tablets to download the app sequence and photograph the QR code. The application sequence then scans the QR code and logs on to a website that provides visitors with rural information and regional maps. Some people even integrate the mobile Internet portal (two-dimensional code) with paper towels, a must-have for mobile people, to transform it from a wiping function to an information carrier function.

Two-dimensional codes may even subvert mobile search. In the mobile phone screen, the two-dimensional code can directly see the relevant information, which is more important than the search box and URL. Therefore, it is not too much to describe the two-dimensional code with a small logo and the big world. The information is stronger and safer.

With the rapid development of mobile Internet, QR codes have been more widely used in logistics, transportation, military, medical and commercial fields, and have been used in business informatization (logistics management, quality control, product anti-counterfeiting, identity verification), mobile marketing (advertising interaction, advertising monitoring, database marketing), mobile commerce (mobile security, mobile payment, electronic ticketing, mobile social networking, discounts) and other fields.