Adaptive Motion Sensitivity Adjustment for Occupancy Detection
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Solution Overview
Problem
Motion sensors in environmental control systems often face issues with sensitivity settings, leading to either unnecessary energy consumption when too sensitive or failure to detect occupants when not sensitive enough, resulting in undesirable lighting behavior.
Innovation Solution
A motion sensing apparatus and method that adaptively adjusts the motion sensitivity of a motion sensor based on its output and external occupancy indicators, using feedback to set a sensitivity threshold and duration, thereby minimizing false motion detection and ensuring accurate occupancy sensing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the motion sensitivity is increased to detect all occupants, then occupancy detection accuracy is improved, but false motion detection increases causing unnecessary lighting activation and energy waste
Solution Approach 1:
The patent implements dynamic adjustment of motion sensitivity thresholds based on environmental conditions, time of day, and historical occupancy patterns. The system transitions from static sensitivity settings to adaptive thresholds that automatically optimize detection accuracy while minimizing false positives, directly resolving the contradiction between detection sensitivity and energy waste.
Solution Approach 2:
The system incorporates feedback loops that monitor lighting activation patterns, occupancy sensor data, and energy consumption metrics. This feedback enables the system to learn from false detections and adjust sensitivity parameters in real-time, improving occupancy detection accuracy while reducing unnecessary lighting activation and associated energy waste.
2Loss of energy
If the motion sensitivity is decreased to reduce false detection, then energy consumption is reduced, but occupancy detection accuracy deteriorates causing lights to turn off while occupants are present
Solution Approach 1:
The system dynamically adjusts motion sensitivity thresholds based on environmental conditions, time of day, and historical occupancy patterns. Rather than using a fixed low sensitivity setting that would miss occupants, the system adapts thresholds in real-time to maintain optimal detection accuracy while minimizing false positives and unnecessary energy consumption.
Solution Approach 2:
Feedback loops monitor occupancy sensor data and lighting activation patterns to learn from detection errors. When the system detects that occupants are present but lights turn off incorrectly, it adjusts sensitivity parameters upward. Conversely, when false detections occur, it lowers sensitivity, thereby optimizing the balance between energy consumption and occupancy detection accuracy.
3Ease of operation
If fixed sensitivity settings are used to simplify system operation, then device complexity is reduced, but adaptability to different environments and occupancy patterns deteriorates
Solution Approach 1:
The system implements self-service through automatic sensitivity adjustment based on environmental sensors, time-of-day algorithms, and historical occupancy data. Rather than requiring manual configuration for different environments, the system autonomously adapts to varying conditions, maintaining ease of operation while significantly improving adaptability to different spaces and occupancy patterns.
Solution Approach 2:
The patent dynamically changes sensitivity parameters based on environmental conditions, time of day, and detected occupancy patterns. This allows a single fixed-device design to adapt its operational parameters to diverse environments, achieving high versatility without increasing operational complexity for end users.
Data Source
AI summary
Apparatuses, methods, apparatuses and systems for adaptively adjusting motion sensitivity of a motion are disclosed. One apparatus includes a motion sensor, wherein the motion sensor generates an output that indicates whether or not motion has been sensed by the motion sensor, wherein the motion sensor receives a motion sensitivity input, wherein the motion sensitivity input controls a level of motion sensitivity of the motion sensor. Further, the motion sensing apparatus includes a controller, wherein the controller generates the motion sensitivity input based at least in part on the output of the motion sensor.