Method and device for judging elevator leveling fault

Abstract

The invention discloses a method and a device for judging an elevator leveling fault. The method comprises the steps that a leveling signal and a target floor signal of an elevator are obtained, and whether the elevator is on a target floor or not is judged according to the target floor signal; if yes, the normal change sequence of a leveling sensor signal of the elevator from a starting floor to the target floor is calculated; the real-time change sequence of the leveling sensor signal from the starting floor to the target floor is obtained; whether the normal change sequence is the same as the real-time change sequence or not is compared; and if yes, that the elevator is normally leveled is judged, and if not, that the elevator has the leveling fault is judged. When the elevator runs or passes through the fault floor, the leveling sensor signal of the elevator can have the corresponding abnormal change, fault judgment can be conducted by analyzing the real-time change sequence of the leveling sensor signal of the elevator, fault prediction can also be conducted, maintenance is conducted in advance so that passengers can be prevented from experiencing the fault, and therefore elevator maintenance personnel can maintain the elevator in time, and the probability of elevator accidents is reduced.

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

Images