Not only can access the Internet, but WiFi can also recognize others

Not only can access the Internet, but WiFi can also recognize others

It is often helpful to identify different people. Generally, we identify a person by looking at the eyes and by vision. However, I believe that all of you will have the same technology as those of Alibaba Cloud, that is, voice recognition. That's right. In those years, xiaobian's accomplishments in this technology were brilliant. At that time, the author lived on the second floor and watched TV or played Gameboy while his parents were absent at night. Once there was footsteps downstairs, in five seconds, the editor can determine whether it is his or her own parent based on the frequency and intensity of his step, and then make decisive actions.

Of course, these are all small technologies. After all, there are too many people to master and there are huge drawbacks. After all, they cannot be completely accurate at every time. A group of researchers at the Massachusetts Institute of Technology recently developed a new method to identify people, which is achieved through Wi-Fi signals.

This technology is also known as RFID technology. As early as 2013, they showed the most basic radio frequency identification technology to detect the presence of human movements at the other end of the wall. After two years of development, this technology has become very mature and can now easily capture the specific outlines of people on the other end of the wall, even in some cases, the heartbeat and breathing situations can be captured. At the same time, it can also identify a person's identity by recognizing different physical characteristics. All of this can be done easily through Wifi signals.

This technology is of great help to human life. For example, it is applied to nursing homes and other places for the best remote monitoring of the health condition of the elderly, in order to immediately detect some possible dangers; or for rescue work after a disaster, it will be able to determine the specific location of the survivors to rescue them; of course, it can also be used for monitoring in areas similar to the military restricted area to ensure the security of some confidential files.

Of course, for those "bear children" who used to be the same as xiaobian, they can also arrange it around their home and connect the corresponding alarm devices. In this way, the following situation occurs: "alarm! Your parents are already in the 100-meter range. Please turn off your TV, computer, and game machine and study well !"