Method and device for judging elevator leveling failure

Abstract

The invention discloses a method and device for judging an elevator leveling failure. The method includes: taking the leveling signal and the target floor signal of the elevator, and judging whether the elevator is at the target floor according to the target floor signal; From the floor to the target floor, the normal change sequence of the leveling sensor signal; obtain the real-time change sequence of the leveling sensor signal from the starting floor to the target floor; compare whether the normal change sequence is the same as the real-time change sequence; if they are the same, judge that the elevator is normal Leveling, if not the same, it is judged that there is a leveling fault in the elevator. When the elevator is running or passing a faulty floor, its leveling sensor signal will have corresponding abnormal changes. By analyzing the real-time change sequence of the elevator leveling sensor signal, fault judgment and fault prediction can be carried out. In order to experience faults, the elevator maintenance personnel can maintain the elevator in time and reduce the probability of elevator accidents.

Description

technical field [0001] The invention relates to the technical field of elevators, in particular to an elevator fault judgment method and device. Background technique [0002] In recent years, with the substantial increase in the use of elevators, the higher and higher floors, and the continuous increase in the use time of elevators, the phenomenon of elevator failures inevitably shows an increasing trend. Whether the position of the elevator car is judged correctly or not will not only affect the operating efficiency of the elevator, but may also cause a series of leveling faults. When the position of the car is obtained incorrectly, once an accident occurs, the consequences will be very serious. [0003] The position of the traditional elevator car is obtained by calculating the actual rotation circumference of the traction sheave from the measurement signal of the floor encoder (rotary encoder on the host side), so as to convert the distance of the wire rope movement and ...

AI Technical Summary

Problems solved by technology

[0006] The main purpose of the present invention is to provide a method and device for judging elevator leveling faults, aiming to solve the problem that the leveling faults in the prior art may occur from time to time due to signal loss, leveling baffle displacement, etc., thereby increasing the Technical issues on the incidence of elevator accidents

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