Power Consumption Control by User Presence for Forgotten Devices
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Solution Overview
Problem
Energy waste occurs due to users frequently forgetting to turn off electric devices, leading to inefficient power management in households.
Innovation Solution
A power consumption management method that acquires identification information of electric devices in a monitoring area, automatically powering off devices based on pre-defined types and durations when the user leaves, thereby preventing energy wastage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual power switch control is used for electric devices, then user flexibility and device accessibility are improved, but energy waste occurs due to user negligence in turning off devices
Solution Approach 1:
The system enables electric devices to automatically manage their own power states through detection of user presence and absence. The power management device autonomously determines when to power on or off devices based on monitoring data, eliminating the need for manual user intervention and preventing energy waste from forgotten devices.
Solution Approach 2:
The system continuously monitors user presence in the monitoring area and provides feedback to the power management device. This real-time feedback loop allows the system to dynamically adjust device power states based on current conditions, ensuring devices are powered off when users leave and powered on when users return.
2Loss of energy
If automatic power-off systems are implemented, then energy waste is reduced, but system complexity increases
Solution Approach 1:
The power management device serves as an intermediary between the monitoring device and electric devices. It receives monitoring data, processes the information to determine user presence/absence, and controls the power states of electric devices. This intermediary structure simplifies the overall system by centralizing the control logic in a dedicated management device rather than requiring complex integration across all components.
Data Source
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AI summary
Disclosed are a power consumption management method for electric devices, a manager and a management system. The power consumption management method may include: acquiring identification information of an electric device in a power-on state in a monitoring area (S101); collecting information of the monitoring area, and determining whether a user exists in the monitoring area or not according to a collection result (S102); when the user does not exist in the monitoring area, determining a type set to which the identification information belongs (S103); when determining that the identification information is comprised in a first type set, powering off the electric device(S104); and when determining that the identification information is comprised in a second type set, beginning timekeeping, and when a timekeeping duration reaches to a preset duration matched with the identification information, powering off the electric device (S105). Therefore, the energy waste due to the fact that a user forgets to turn off an electric device when leaving the monitoring area may be prevented.