Method and system for achieving automatic and accurate leveling of elevator

Abstract

The invention discloses a method and system for achieving automatic and accurate leveling of an elevator. The method comprises the following steps that in an elevator debugging stage, corresponding slip distances are separately recorded and learned when an elevator car enters a target floor under different loads, and the slip distances are stored; when the elevator runs, load capacity of the elevator car is obtained in real time, and the slip distances corresponding to the stored load capacity are acquired according to the load capacity of the elevator car; and the running distance of the elevator car entering the target floor is compensated according to the slip distances, and the accurate leveling of the elevator car on the target floor is achieved. When the elevator car runs, the automatic and accurate leveling can be achieved, and the phenomenon that the elevator car is under-leveled or over-leveled is avoided.

Description

technical field [0001] The invention relates to the field of elevator control, more specifically, a method and system for realizing automatic and precise leveling of an elevator. Background technique [0002] The elevator wire rope is suspended on the traction sheave of the traction machine, and the traction sheave drives the wire rope to move through friction, and pulls the elevator car to run up and down. When the elevator is running, especially when it is running in the direction of high speed and heavy load, the traction sheave and the wire rope of the elevator will slide relative to each other, forming a slipping phenomenon. In the prior art, in order to improve the accuracy of the leveling, the control system of the elevator will correct the position when the elevator passes the leveling magnetic isolation board, but the inventor found that in the prior art there was The following problem: When the elevator enters the destination floor, the deceleration curve of the e...

AI Technical Summary

Problems solved by technology

In the prior art, in order to improve the accuracy of the leveling, the control system of the elevator will correct the position when the elevator passes the leveling magnetic isolation board, but the inventor found that in the prior art there was The following problem: When the elevator enters the destination floor, the deceleration curve of the elevator has been set. The slipping distance between the destination floors will affect the change of the leveling accuracy. During the operation of the elevator, due to the load and the speed of the elevator car The sliding distance will be different, and finally the leveling accuracy will vary with the load, and the phenomenon of over-leveling or under-leveling will appear at the destination landing station

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