Nowadays, with the rapid development of economy and the rapid improvement of science and technology, mobile electronic equipment has gradually entered thousands of households. The HDI editor learned that at present, with the popularity of mobile electronic devices, mobile payment is rising continuously. However, many people cannot help but worry that the world consumes tens of billions of QR codes every day. What if they run out?

  In life, the application of two-dimensional code is not only in mobile payment, but also in various verifications. In fact, in simple terms, we can understand two-dimensional code as one of "information identification". Just according to the data, generally a person consumes 4 to 6 QR codes every day, and some people consume more. However,FPC supplier wants to say that we all need to know that WeChat and Alipay use more than 2 billion users. Based on the consumption of 5 two-dimensional codes per person per day, the world consumes tens of billions of two-dimensional codes per day. So what shall we do if the two-dimensional codes are used up one day?

  On this issue, in fact, we don't need to worry too much, because there are too many two-dimensional codes! As an open information storage, the working principle of the two-dimensional code is actually the binary of the computer. In the two-dimensional code, the numbers represented by white dots and black dots are 1 and 0 respectively. However, what you need to know is that there are currently 40 specifications of the two-dimensional code, the minimum is 21*21 and the maximum is 177*177. Moreover, for each upgrade of the specification, the horizontal and vertical directions of the two-dimensional code will be increased by 4 grids!

  A circuit board factory can give a simple example. If a two-dimensional code has squares of up to 40 squares each, then there are 1600 ways to transform the two-dimensional code, and the binary converted into a computer is 2 to the 1600 power. Just think about how big this number is. According to this figure, I really can't imagine when we will run out of QR codes. For this problem, in fact, we don't have to worry about it at all, let alone the problem of consumption. Even now, new payment methods are already in the promotion stage, such as face-brushing payment and fingerprint payment.