Elevator automatic door induction has a blind spot is it true?
If you are talking about the protection of the elevator door, it depends on what type, safe touch version of the blind spot, but the contact is a common point of failure. Photoelectric switch is generally used in conjunction with the touch plate. Safety light curtain is a number of infrared emission, the composition of the receiving point, it's the top, bottom, the middle of a blind spot, if it is a small rod can not detect the situation, so the protection is generally the touch version and light curtain or photoelectric Joint use, each take its advantages, to make up for its shortcomings.
it is true.
Blind Location:
At present, the domestic use of the elevator there are two, the first is the touch plate elevator, that is, in the elevator door has a prominent touch panel, when there are objects touch the touch panel, the elevator door will automatically bounce; For the light curtain elevator, is installed in the elevator door with two ray sensor device.
Although the two elevators are equipped with induction devices, but the blind area still exists, to light curtain elevator, for example, the area can not cover the entire elevator door, in the bottom of the door there are ten centimeters blind spot. In other words, the area of the object, the elevator door sensor
