A method and device for equipment failure early warning

Abstract

The invention provides a method and a device for equipment failure early warning, comprising: storing at least two history values corresponding to at least one operation index in advance, wherein, each history value corresponds to one time point; and storing the history values corresponding to at least one operation index; determining at least one target to be detected corresponding to the deviceto be detected; generating, for each of the indexes to be detected, a time series corresponding to the indexes to be detected according to the stored historical value and the time point correspondingto the historical value; at least two long-term trend value being decomposed from the time series; performing linear regression fitting on the decomposed long-term change trend value to obtain a fitting curve; determining a fault warning time point corresponding to the index to be detected according to the fitting curve and the preset warning value; the fault warning time point being alerted priorto the fault warning time point. This scheme can make more reasonable maintenance time.

Description

technical field [0001] The invention relates to the technical field of equipment management, in particular to an equipment failure early warning method and device. Background technique [0002] The equipment in the enterprise is all heavy assets, such as elevators, machine tools, generator sets, etc., which require a large investment and are labor-intensive to maintain. Once a failure occurs, it will usually lead to a large accident, which will cause heavy losses to the safety of personnel and the property of the enterprise. [0003] With the use of the equipment, its key components will continue to age and wear, and this change will inevitably affect the various indicators of the equipment in the working state, such as the motor temperature and vibration frequency in the working state. When a certain index exceeds a certain value, it may cause the equipment to malfunction. In order to reduce the probability of equipment failure, at present, the indicators are mainly detec...

AI Technical Summary

Problems solved by technology

[0004] However, if the maintenance cycle is set too short, it will increase the maintenance cost of the equipment for the enterprise

However, if the maintenance cycle is set too long, the equipment may have failed before the maintenance personnel carry out the inspection.

[0005] From the above description, it can be seen that the maintenance time set by the existing technology detection indicators is unreasonable

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