The QR Code two-dimensional barcode currently popular around our lives, such as large and small publicity products or books posted on the wall, packaging, and even the entire QR code book, QR (Quick Response) stands for quick response, which is In the 1960s, the American GATF (currently incorporated into the PIA Printing Industry Association) invented a one-dimensional bar code technology that used only straight lines of different thicknesses to form the same direction for quick identification. Identify the easiest and most cost-free tool for commercial automation.
Fifty years later, a two-dimensional bar code using small squares to pile up information in the squares was invented. You can get a lot of information by using the camera phone that everyone has today, up to more than a thousand English words, and a QR Code may also represent a local map. More than two years ago, when Taiwan High Speed ​​Rail sold tickets at convenience stores, it abandoned the previous tickets sold by high-speed rail stations with magnetic tracks on the back, and used QR Code two-dimensional barcodes for identification of non-magnetic tickets. The ticket is sent to the magnetic ticket inspection system, and the door can be opened to allow passengers to pass after reading and confirming the passage. However, in order to use the non-track two-dimensional bar code tickets sold outside, they must establish a photoelectric reading system for the QR code at the gate they are currently entering and exiting. Perhaps the QR code ticket machine is cheaper, and There is no need to add a magnetic stripe with a asking price of about 1.5 yuan on the back of the ticket, so it is also more advantageous. I believe that the boarding pass of the airport can no longer be seen in the world, and the magnetic stripe-encoded ticket is still used. Today, QR Code has been used as the identification of ticket information.
Basically, the QR Code is printed for reading by the photoelectric equipment of the instrument. Unlike the original printed on the printed matter, the one-dimensional barcode for human viewing is a "dominant media". If the QR Code is only for inputting the Internet The name, the information of the machine equipment identification, this QR code is regarded as a part of the information transmission. If you use a mobile phone to read a string of text files, a drawing or a map, then this QR code is a graphic transmission, flat One aspect of the media is not the dissemination of information that is not related to printing. In today ’s digital technology era and before, black manuscripts, negatives, and printing plates are printed. These are display media. If the information or information is disseminated by graphics, the two-dimensional bar code squares printed with precision and detail are used to make a large number of small A large amount of printing and dissemination to replace the magnetic stripe, magnetic disk, USB or other information carrier, once again take advantage of the printed matter, will save money on the one hand, on the other hand has the advantage of easy to read, although the printing industry has not because of printing QR Code increases income. On the contrary, more people will use printing to engage in two-dimensional barcodes for information dissemination or graphic dissemination. It also shows that printing technology has the possibility of sufficiently storing visual information and hidden large amounts of digital information. On the list issued by the university, a newspaper can put the name of 15,000 people and the name of the department of the school. If you use the computer screen to view it, you will be dizzy. The paper media needs to improve the speed of the search. Sex!
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