It turns out that the escalator works so simply?

I don't know if everyone has "flirted" with the escalator, when no one is riding, in order to reduce the electricity consumption, the escalator will generally enter a low-consumption state, just like the computer's dormant state. Before touching the sensor, Xiaobian had always thought that as long as he gently stepped on the escalator and did not let it feel, it would always be dormant. In fact, when taking the escalator, when someone passes by, the dia-beam sensor installed at the bottom of the escalator detects that someone is passing by, and it will remind the elevator: someone is coming, and it is about to wake up and work! Therefore, no matter how light the weight, the escalator will sense it, because it is received by photoelectric sensors.