Property is not allowed to use property electric installation piles.

Now even the small shops in rural areas have been realized, and the QR code is paid. This conspicuous QR code is not made in China, but comes from Japanese core technology.

The matrix code on the ticket printed in Japan is the QR code, which was developed by Denso Corporation of Japan. At the beginning, the development of QR code was made for Toyota.

Toyota Kanban Management System is well known to many car lovers, but what we don't know is that Toyota Electric Pile, in 1999, developed a two-dimensional code that contains more information than bar code, which is what we are familiar with now.

If Denso monopolizes this technology, then the QR code will not be pushed to all parts of China.

Denso has no monopoly technology. Denso's QR code is not only for Toyota, but also for the promotion of QR code, and the software for making QR code is free and open.

At present, the QR code and scanner of Denso Corporation of Japan are adopted by many convenience store enterprises, but the application scope is still not as wide as that of China.

It was not until 20 10 that the situation changed greatly. With the emergence of smart phones, the two-dimensional code of information read by cameras has developed at an alarming rate overseas.

At first, China did not use the QR code, but used his own code, but because of security problems, it was changed to the QR code.

The use of QR codes is largely due to Denso's free disclosure of related technologies and no patent fees.

In fact, Microsoft in the United States has also developed codes similar to QR codes, but because Microsoft charges, it has not been popularized in the end.