Adaptive Power Prediction for Alert Stability
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Solution Overview
Problem
Existing power management systems often result in repetitive alerts for exceeding and not exceeding prescribed power limits, causing user confusion due to large variations in power increment per unit time.
Innovation Solution
A power management apparatus that includes first and second power acquisition units, a prediction unit, and a presentation unit, which predicts the accumulated power based on actual or variation values and presents alerts in different forms when the predicted value reaches the prescribed limit, reducing repetition by adjusting the number or interval of sample values based on load type and power variation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the accumulated amount of power is predicted based on the increment per unit time, then the prediction responds quickly to power changes, but the alert state repeats frequently due to large variations in increment
Solution Approach 1:
The patent applies dynamics by making the prediction method adaptive rather than fixed. The system dynamically switches between two prediction methods (increment-based and actual value-based) depending on the temporal phase within the prescribed period. In the first temporal phase, increment-based prediction provides quick response; in the second phase, actual value-based prediction ensures stability. This dynamic adaptation resolves the contradiction between rapid response and alert state stability.
Solution Approach 2:
The patent changes the prediction parameter based on the temporal phase. The prediction unit switches between using 'increment per unit time' as the prediction parameter in the first phase and 'actual power value' as the prediction parameter in the second phase. This parameter change allows the system to achieve both quick initial response and stable final prediction, preventing frequent alert state repetitions.
2Reliability
If alerts are issued based on predictive values reaching the prescribed amount, then power consumption is controlled, but user confusion occurs due to repetitive alert ON and OFF states
Solution Approach 1:
The system performs preliminary action by dividing the prescribed period into temporal phases and applying different prediction strategies in advance. The prediction unit预先 determines which prediction method to use based on the current temporal phase, preventing the problem of repetitive alerts before they occur. This preliminary planning of prediction methods ensures reliable power control while avoiding user confusion from frequent alert switching.
Solution Approach 2:
The system uses feedback by continuously monitoring the temporal phase within the prescribed period and adjusting the prediction method accordingly. The prediction unit receives feedback about the current time phase and automatically switches between increment-based and actual value-based prediction. This feedback mechanism ensures stable alert behavior that maintains power control reliability while improving user understanding by reducing repetitive alert states.
Data Source
AI summary
In the present invention, a power monitoring unit (330) estimates the integral power consumption on the basis of an obtained actual value or amount of change of power consumption. When the estimated value for the integral power consumption as estimated by the power monitoring unit (330) reaches a prescribed amount of power, a presentation unit (204) presents a warning, on the basis of the power values obtained by a load power meter (340), indicating a list of loads for which the power consumption should be controlled.