The new technology is called Intelligent Automatic Door system. At its core is a 3D laser scanner that scans more than a million points in a second, giving it the ability to simultaneously determine the moving direction and speed.
Now everything can be intelligent, not only elevator but also automatic door for shopping malls or bank are no exception. We are already familiar with automatic doors, that this is already very good, but scientists obviously do not think so, they have a more advanced invention.
For example, normally automatic doors will open when some moving object close to the door, even if we just walk nearby not go inside. But new technology automatic door system after judging, that you do not intend to go inside, they will continue to keep the door closed. If you are anxious to go out and even intend to run out, then the door will open in advance or open at a faster speed.
From the video demonstration, this technology is not very mature, we can see that when two different people in the vicinity, the system will be some confusion, making the door can not be fully open. However, this problem will soon be resolved.