Apparatus Control Using Predicted and Unobservable Environmental Values

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Solution Overview

Problem

Conventional apparatus control devices, such as air conditioning control systems, fail to accurately calculate control values due to the lack of consideration for unobservable values that cannot be directly observed by sensors, leading to inadequate environmental control.

Innovation Solution

An apparatus control device that utilizes two learning models, one for predicting observable values and another for estimating unobservable values, to calculate control values by substituting these values into equations of state for various control methods, thereby selecting an appropriate control value.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If only observable values from sensors are used for control calculation, then the device complexity is reduced, but the control accuracy deteriorates due to lack of unobservable value consideration

Engineering Contradiction:
Improvecontrol accuracyVSAvoiddevice complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent introduces a learning model as an intermediary component that estimates unobservable values (such as thermal load) based on observable sensor data. This mediator bridges the gap between simple sensor measurements and the need for comprehensive environmental understanding, enabling accurate control calculations without directly measuring unobservable quantities.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces direct physical measurement mechanisms with a computational estimation approach using learning models. Instead of installing additional sensors to measure unobservable values like thermal load, the system uses software-based learning models to infer these values from existing sensor data, substituting mechanical measurement systems with intelligent algorithms.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Reliability

If multiple control methods are evaluated with both observable and unobservable values, then the control quality is improved, but the calculation time increases

Engineering Contradiction:
Improvecontrol qualityVSAvoidcalculation time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent performs preliminary estimation of unobservable values using learning models before the control calculation process. By pre-computing these estimated values and making them available when needed, the system avoids time-consuming calculations during critical control moments, thus reducing overall calculation time while maintaining control quality.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS20240219873A1Apparatus control device and apparatus control method
Publication Date: 2024.07.04 MITSUBISHI ELECTRIC CORP
  • US20240219873A1 patent drawing
  • US20240219873A1 patent drawing
  • US20240219873A1 patent drawing

AI summary

An apparatus control device includes an observed value acquiring unit that acquires, from a sensor that observes an environment in which a control target apparatus is installed, an observed value of the environment, an observation predicted value acquiring unit that gives an observed value acquired to a first learning model and acquires an observation predicted value that is a future observed value from the sensor from the first learning model, and an unobservable value acquiring unit that gives an observed value acquired to a second learning model and acquires an unobservable value that is a value not directly observed by the sensor from the second learning model. In addition, the apparatus control device includes a control value calculating unit that calculates a control value of the control target apparatus using the observed value acquired, the observation predicted value acquired, and the unobservable value acquired.