Analysis of elevator operation principle

The elevator user sends a signal to the elevator through the button, and the button for transmitting signals on the highest layer and the bottom layer of the elevator is one. The button at the highest level of the elevator transmits the signal for the downward demand operation, and the bottom layer transmits the signal for the upward demand operation. .
Between the top floors and the other floors between the lowest floors. The elevator's buttons are two, one is to pass the signal to the downward demand, and the other is to pass the signal to the upward request. When the passenger enters the car and selects the floor to go to, the action is the internal selection signal.
The door of the car and the doors of each hall need to be closed before the elevator is started. The command to close is issued by the door closing button in the car, and the other is the command issued when the door is closed regularly; in the building with the elevator In the middle of the elevator, there are acceleration and deceleration control position box signals between the two floors of the elevator. When the elevator needs to stop on the next floor, the device performs a deceleration control program, or performs a cross-level processing procedure, that is, the elevator speed is not reduced. This layer.
When the elevator is in the running state, when the passenger calls the elevator in the lobby, the elevator adopts the way of cutting the stairs in reverse and memorizing. When the highest floor or the lowest floor calls the elevator and the elevator arrives, it should be able to automatically change the running direction of the elevator, and in the process of following the operation, different call signals will appear at the same time, and the original running direction will remain.
The elevator needs to display the running direction and the floor information in the process of running. In addition, when the elevator encounters an emergency stop or accident failure, the parking command should be executed immediately, and the fixed treatment method should be transferred.