Abnormality Threshold Setting from Extracted Operation Data
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Solution Overview
Problem
Existing methods for setting threshold values for abnormality determination in apparatuses rely heavily on personal judgment and experience, leading to deviations in determination and requiring complex calculations, making it difficult to set and perform abnormality determination simply.
Innovation Solution
A threshold value setting device and method that includes an input unit, data extraction unit, reference value determination unit, and threshold value calculation unit to automatically determine a threshold value based on extracted data, allowing for quick and simple abnormality determination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If threshold value is set by personal judgment and experience, then abnormality determination can be performed, but deviation in determination occurs and consistency is poor
Solution Approach 1:
The system automatically determines threshold values using its own collected operation data and vibration data, eliminating dependency on external human judgment. The threshold value setting unit autonomously performs calculations based on statistical processing of accumulated data, ensuring consistent and reproducible results without personal bias or experience-based variations.
Solution Approach 2:
The system continuously accumulates operation data and vibration data, uses this feedback to automatically calculate and update threshold values. The determined threshold values are then used for abnormality determination, creating a closed-loop system where past data informs future decision-making, improving both accuracy and consistency over time.
2Measurement precision
If complex calculation formulas and large amount of information are used for threshold value setting, then abnormality determination accuracy may improve, but the process becomes difficult and time-consuming
Solution Approach 1:
The system replaces complex manual calculation processes with automated computational processing. The threshold value setting unit uses programmed algorithms to automatically perform statistical processing on accumulated data, eliminating the need for manual application of complex formulas and reducing setting time while maintaining or improving accuracy.
Solution Approach 2:
The system accumulates operation data and vibration data in advance during normal operation. This preliminary data collection allows the threshold value setting unit to perform rapid automated calculations when needed, as the necessary data is already prepared and stored, eliminating time-consuming data gathering during the threshold setting process.
3Ease of operation
If manual threshold value setting is used, then flexibility in adjustment is maintained, but the process requires significant information and complicated procedures
Solution Approach 1:
The system performs threshold value setting autonomously without requiring manual intervention or complex user input. The threshold value setting unit automatically processes accumulated data and determines appropriate threshold values, simplifying the operation for users while the system handles the complex processing internally.
Solution Approach 2:
The system extracts only the necessary data elements from the accumulated operation data and vibration data that are relevant for threshold determination. This extraction process simplifies the input requirements for users while the system internally manages the complex analysis of the extracted data to determine appropriate threshold values.
Data Source
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AI summary
A threshold value setting device includes an input unit configured to input a period of data to be extracted from acquired data, a data extraction unit configured to extract the data in the period input by the input unit, a reference value determination unit configured to determine a reference value based on the data extracted by the data extraction unit, and a threshold value calculation unit configured to calculate a threshold value based on the reference value determined by the reference value determination unit.