State Estimation via Thermal Load Detection
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Solution Overview
Problem
Existing state estimation systems for objects, such as maintenance timing, fail to accurately reflect the load state of each object, making it difficult to estimate the object's state accurately.
Innovation Solution
A state estimation system comprising a thermal load detection unit that detects the thermal load of an object and an estimation unit that estimates the object's state based on the detected thermal load.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If state estimation is performed based on integration of energization time or operating time, then the estimation process is simple, but the estimation accuracy deteriorates because load state is not reflected
Solution Approach 1:
The patent changes the parameter used for state estimation from simple operating time to thermal load, which incorporates both time and temperature information. This parameter change enables accurate estimation while maintaining system simplicity, as the thermal load calculation integrates multiple factors into a single comprehensive metric.
Solution Approach 2:
The thermal load acts as an intermediary parameter that mediates between the raw operating data (time, temperature) and the final state estimation. By using thermal load as this intermediate representation, the system achieves accurate state estimation without directly complexifying the estimation process itself.
2Measurement precision
If thermal load detection is added to improve estimation accuracy, then state estimation accuracy improves, but device complexity increases
Solution Approach 1:
The thermal load detection unit serves multiple functions: it detects temperature, calculates thermal load, and provides data for state estimation. This multi-functionality reduces overall system complexity by consolidating detection and calculation functions into a single integrated unit rather than requiring separate components for each function.
Solution Approach 2:
The patent merges the temperature detection function with the thermal load calculation function into a unified thermal load detection unit. This combining of functions reduces the number of separate components needed and simplifies the overall system architecture while maintaining high estimation accuracy.
Data Source
AI summary
A state estimation system includes a thermal load detection unit that detects a thermal load of a device as an object, and an estimation unit that estimates a state of the device on the basis of the thermal load of the device detected by the thermal load detection unit.