Appliance Operation Status Determination via Power Consumption Frequency
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Solution Overview
Problem
Conventional devices cannot determine whether an electrical appliance operates automatically, leading to issues with energy saving, as they disconnect power during standby states, preventing automatic operations like timer recordings in appliances such as video recorders.
Innovation Solution
An operational status determination device that analyzes the frequency distribution of operation start times to differentiate between automatic and manual operations, using a receiving unit for power consumption data, a specification unit for determining operation start times, and a determination unit to assess whether the appliance operates automatically.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If power is disconnected during standby state to save energy, then energy saving is improved, but automatic operation capability deteriorates
Solution Approach 1:
The system performs preliminary detection of operation start times over a period and uses this historical data to predict future automatic operations. By analyzing the temporal patterns of operation starts in advance, the system can determine whether an appliance is likely to operate automatically and adjust power disconnection timing accordingly, preventing disruption of timer-based operations while still enabling energy saving during genuine standby periods.
Solution Approach 2:
The system continuously monitors and records operation start times and uses this feedback to refine its determination of automatic versus manual operations. By comparing actual operation patterns against predicted patterns based on historical data, the system can adapt its power disconnection strategy, learning from past behavior to make more accurate predictions about future automatic operations and adjusting its control decisions accordingly.
2Loss of energy
If power is disconnected to reduce standby power waste, then energy efficiency is improved, but operational reliability deteriorates
Solution Approach 1:
The system performs preliminary analysis of operation start time patterns to predict when automatic operations are likely to occur. By using historical data to establish expected timing patterns in advance, the system can proactively adjust power disconnection timing to avoid disrupting reliable automatic operations like timer recordings, while still enabling energy saving during periods when appliances are genuinely not needed.
Solution Approach 2:
The system uses feedback from monitoring actual operation patterns to improve its prediction accuracy. By continuously comparing observed operation start times against predicted patterns and refining its models based on this feedback, the system enhances its ability to reliably distinguish between automatic and manual operations, thereby reducing false disconnections that would compromise operational reliability.
Data Source
AI summary
An operation status determination device includes: a receiving unit which receives a value, as power consumption data, from which power consumption of an appliance is derivable, the power consumption being measured at predetermined time intervals; a specification unit which specifies operation start times of the appliance, based on the power consumption data received by the receiving unit; and a determination unit which determines whether or not the appliance starts operating automatically, based on each of occurrence frequencies of the operation start times specified by the specification unit.