Health regulations are a joke.

At the beginning, the popularity of QR codes can be said to be well known throughout the country. Do you know what QR code is used all over the country? Yes, that's right. This is the health code. When traveling by subway, everyone needs to show your health code. You can't pass the security check until you show your health code. Of course, the health code must be green. I believe many people have had this experience, because now this health code is an indispensable thing for us to travel, just like WeChat payment, it is inevitable. So do you know the source of this health password? Or where?

Let's talk about the specific process from two different aspects. The first is the source of this health code. Let's talk about this mobile phone health code first. After all, everyone uses the mobile phone health code, but who made this health code? You can think about what else you need to worry about when making this health code. First of all, it is necessary to monitor the authenticity of your piano god in real time. As long as many companies can do this, it is the safest and most reassuring way to put it in the hands of the state. Therefore, the source of this health code is the country, which is actively formulated by the relevant state departments, and it is also to ensure the safety and many characteristics of this health code.

Then let's talk about this second level, which is the original source of health code. The health code is also a QR code. QR code can be said to be very common in life. No matter what you do, you can basically see this QR code. So where was the QR code mainly born? The QR code was first born in Japan, so it is square. Everyone knows that, right? Why use a square? Because the frequency of this pattern in those banknotes is the smallest.

The final result is, for example, when you scan a QR code, there may be other shapes next to it, so you may think of it as a QR code, so you use a square QR code, because square is the rarest shape. The domestic research on QR code only started in the early 1990s, and a lot of research was done from the beginning. Later, with the increasing demand of domestic users for QR codes, most of these demands came from Alipay and WeChat. In this case, it is more necessary for technicians in China to formulate their own national two-dimensional code standards, so they started further research and development, and finally obtained independent intellectual property rights. Regarding the QR code, this is also the source of the QR code and the origin of the QR code all over the world. So now do you know where the QR code comes from?