Elevator door sensor installed in what specific location, how to work?
Elevators generally have two doors. In general, the door switch is responsible for driving the door inside, driving the door switch. In this way, the sensor is mounted on the outside of the back door, which is mounted on the back door, but between the inner and outer layers. It feels the infrared temperature of the body, to reach a certain critical value, it will send a signal to remind the elevator control system is currently through the elevator, can not close.
Elevator door sensor is a leveling sensor, installed in the door level above.
Working principle: the elevator to the corresponding door when the sensor switch will be sensitive to the elevator to the station, then this time will give the signal to the motherboard to open the door signal.
In the simple case, the sensor is output, that is, when the induction relay is acting, is considered to be in the flat area. For example, the use of two leveling sensor elevator, Of the induction signal first into the system.
