Motion Sensor Light Dynamic Lighting Duration Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing motion sensor lights face challenges in balancing convenience and power consumption, as they either turn off too quickly, reducing convenience, or remain on for extended periods, increasing power consumption.
Innovation Solution
A motion sensor light system that includes a processor to measure lighting duration and a delay duration, turning off the light only when both measured values exceed set values, ensuring the light remains on for a certain period while minimizing power usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the lighting maintaining duration is set as a shorter period, then the light is turned off more quickly to reduce power consumption, but the convenience of illumination decreases and the light may be turned off immediately
Solution Approach 1:
The patent implements dynamic adjustment of lighting duration based on detected motion patterns. The system transitions from a fixed timing approach to a dynamic one where the light remains on for a predetermined duration even after motion stops, providing flexibility to balance power consumption and user convenience based on actual usage patterns.
Solution Approach 2:
The patent changes the parameter of lighting duration from a fixed value to a variable that incorporates both the motion detection stop time and an additional predetermined duration. This parameter modification allows the system to maintain illumination longer than traditional motion-stop-based systems, improving convenience while still managing power consumption through controlled extension rather than unlimited continuation.
2Ease of operation
If the lighting maintaining duration is set as a longer period, then the convenience of illumination is improved, but the power consumption of the illumination control device increases
Solution Approach 1:
The system dynamically determines lighting duration by combining motion cessation detection with a predetermined extension period. This dynamic approach allows the light to stay on longer for user convenience while automatically terminating after the extended period, preventing excessive power consumption that would occur with continuously extended lighting.
Solution Approach 2:
The patent ensures continuous useful illumination by maintaining the light on for a predetermined duration after motion stops, rather than turning it off immediately. This continuity provides convenience for users who may need additional time to navigate or perform tasks, while the predetermined limit ensures the action doesn't continue indefinitely, managing power consumption effectively.
3Loss of energy
If the light is turned off immediately when motion is not detected, then power consumption is reduced, but the light may be turned off at an inopportune moment reducing convenience
Solution Approach 1:
The system performs a preliminary action by extending the light-on state for a predetermined duration after motion detection stops. This preliminary extension ensures the light remains on during the period when users might still need illumination, preventing premature shutdown and improving reliability while still transitioning to power-saving mode after the extension period expires.
Solution Approach 2:
The patent provides a cushioning period of predetermined duration after motion stops, acting as a buffer between motion cessation and light shutdown. This cushioning ensures that even if motion stops briefly, the light remains on, providing reliability and preventing inopportune shutdowns, while the predetermined nature of the cushioning ensures power consumption is ultimately managed.
Data Source
AI summary
A motion sensor light turns on a light once a motion sensor detects movement of a person. The light illuminates a monitoring area once the light is turned on. The motion sensor light initiates measurement of lighting duration of the light. After then, the motion sensor light initiates measurement of lights-out delay duration in a case where the movement of a person is no longer detected, and acquires a set value of the lights-out delay duration according to the lighting duration set in advance. The motion sensor light turns off the light in a case where a measured value of the lights-out delay duration exceeds the set value of the lights-out delay duration and a measured value of the lighting duration of the light exceeds a set value of the lighting duration.