Equipment alarm level obtaining method and calculating equipment

Abstract

The invention discloses an equipment alarm level obtaining method and calculating equipment; the method comprises the following steps: obtaining characteristic indexes with the index amplitude exceeding an absolute threshold from all equipment characteristic indexes, thus forming a first index set; aiming at each characteristic index in the first index set, and determining the first alarm level ofeach characteristic index according to the index type of the characteristic index; obtaining characteristic indexes with the index amplitude exceeding a corresponding real time threshold from all equipment characteristic indexes, thus forming a second index set; aiming at each characteristic index in the second index set, if the characteristic index type is a super index and the index amplitude does not exceed the absolute threshold, determining the characteristic index over-limit type so as to determine the corresponding second alarm level; determining the characteristic index correspondingthird alarm level according to the trend form of each characteristic index in the second index set; determining the equipment alarm level according to each first alarm level, second alarm level and third alarm level.

Description

technical field [0001] The invention relates to the technical field of equipment monitoring and sensors, in particular to a method for obtaining an equipment alarm level and a computing device. Background technique [0002] In the field of equipment status monitoring, at present, it mainly relies on extracting monitoring indicators from the collected vibration data, and setting monitoring thresholds for the indicators. When the amplitude of the collected vibration data indicators exceeds the predetermined threshold, a vibration alarm is triggered. Diagnostic engineers need to pay attention to the alarm information and further analyze the diagnostic data to determine the specific cause of the alarm. [0003] However, the equipment abnormality alarm issued by the system does not mean that the equipment is faulty, and the severity level of the alarm cannot be determined. Considering the large number of units currently monitored, engineers often receive a large number of alarms ...

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Problems solved by technology

[0004] As far as the existing method of classifying equipment vibration alarms is concerned, the level is simply divided from the magnitude of the vibration amplitude, that is, the greater the vibration amplitude, the higher the severity level of the equipment alarm triggered, and basically use The vibration amplitude indicators that come to the alarm are root mean square (RMS: Root Mean Square), and other indicator data are rarely used for alarm or severity level judgment

In the actual monitoring process, there are many non-equipment failure reasons that can also lead to high vibration amplitudes, such as working conditions and processes. Simply relying on the RMS level of vibration data to evaluate the severity of the alarm cannot locate the cause of the abnormality. It is difficult to evaluate the severity of the alarm from the fault type

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