Optical Measuring Device Malfunction Detection via Vibration History
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Solution Overview
Problem
Existing optical measuring devices struggle to accurately determine malfunctions, as conventional methods rely solely on signal intensity or vibration sensor outputs, which are not always indicative of device failure.
Innovation Solution
An optical measuring device that includes a light measurement unit, a vibration sensor, storage for measurement and vibration data, and determination units to compare data from a reference object at different timings, along with a history of vibration data, to assess device malfunction based on predefined conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If malfunction determination is based solely on signal intensity or vibration sensor output, then the determination process is simple, but the accuracy of malfunction detection deteriorates
Solution Approach 1:
The malfunction determination process is segmented into multiple independent determination units, each responsible for evaluating specific parameters (signal intensity, vibration magnitude, spectral shape). This segmentation allows complex multi-parameter analysis to be broken down into manageable components, improving detection accuracy while maintaining systematic organization
Solution Approach 2:
The invention transitions from single-parameter determination to multi-dimensional determination by incorporating both temporal dimension (time-series analysis of signal intensity and vibration) and spectral dimension (spectral shape analysis). This dimensional expansion enables more comprehensive malfunction detection without overwhelming complexity
2Reliability
If multiple parameters are analyzed for malfunction determination, then detection accuracy improves, but the determination process becomes more complex
Solution Approach 1:
The determination system is divided into specialized determination units, each focused on specific parameters. This functional segmentation improves reliability by ensuring thorough analysis of each parameter while organizing system complexity into modular, manageable components
Solution Approach 2:
The system incorporates feedback mechanisms where determination results from multiple units are integrated and evaluated collectively. This feedback loop ensures that reliability is enhanced through comprehensive cross-validation of multiple parameters while maintaining systematic control over the complexity of the determination process
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach allows for more accurate malfunction detection by considering both spectral data deviations and vibration history, distinguishing between minor and significant malfunctions, thereby improving measurement accuracy and maintenance efficiency.
Implementation Method 1
an optical measuring device capable of measuring colors of measurement targets
Implementation Method 2
a sensor to detect a magnitude of vibration of the optical measuring device
Data Source
AI summary
An optical measuring device includes a light measurement unit, an acceleration sensor for detecting the acceleration of the optical measuring device, a storage for storing reference data obtained from the light measurement unit by measuring light from a reference object at a first timing and storing the acceleration detected by the acceleration sensor as history information, a first determination unit for determining whether the result of comparison between measurement data obtained from the light measurement unit by measuring light from the reference object at a second timing later than the first timing and the reference data satisfies a first malfunction condition, a second determination unit for determining whether the acceleration included in the history information satisfies a second malfunction condition, and an output unit for outputting that the optical measuring device malfunctions when the first malfunction condition and the second malfunction condition are satisfied.