Smart Lighting Occupancy Detection via Laser Motion Tracking
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Solution Overview
Problem
Conventional lighting systems struggle to accurately detect and respond to human presence, often turning off lights while a room is still occupied due to false triggers from pets or environmental factors, and lack adaptive control based on occupancy patterns and user preferences.
Innovation Solution
A smart lighting system that uses directional motion detection with lasers and sensors to maintain an occupancy count, illuminating or darkening rooms based on pre-determined thresholds, time of day, and user overrides, while anticipating user behavior to optimize lighting conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional motion detection is used to control lighting, then the system is simple and easy to operate, but the detection accuracy is low leading to false triggers from pets or environmental factors
Solution Approach 1:
The patent combines multiple detection technologies (motion sensors, occupancy sensors, environmental sensors) into a unified lighting control system. This integration allows the system to cross-validate signals and distinguish between genuine occupancy and false triggers from pets or environmental factors, thereby improving detection accuracy while managing system complexity through coordinated operation of multiple components.
Solution Approach 2:
The patent introduces an intelligent control unit that acts as an intermediary between sensors and lighting execution. This mediator processes sensor data, applies occupancy patterns and user preferences, and makes informed decisions about lighting control. The intermediary layer filters out false triggers and enables accurate occupancy detection without requiring each individual sensor to be perfectly accurate.
2Loss of energy
If lighting is turned off based on simple motion detection, then energy consumption is reduced, but user experience deteriorates due to unnecessary light changes
Solution Approach 1:
The patent implements preliminary action by anticipating user behavior through occupancy patterns. The system learns when users typically occupy rooms and proactively maintains lighting during these periods, even without detecting active motion. This prevents unnecessary light changes that would degrade user experience while still reducing energy consumption during genuinely unoccupied periods.
Solution Approach 2:
The patent incorporates feedback mechanisms where the system continuously monitors occupancy status, user overrides, and lighting responses. This feedback loop allows the system to learn from user corrections and adjust its behavior accordingly, ensuring that energy savings are achieved without compromising user experience. The system adapts to user preferences and refines its occupancy detection over time.
3Adaptability or versatility
If the system tracks occupancy patterns and predicts user behavior, then lighting control becomes more adaptive and user experience improves, but the device complexity increases
Solution Approach 1:
The patent implements self-service by enabling the lighting system to automatically learn and adapt to occupancy patterns without requiring manual programming or complex user configuration. The system autonomously analyzes sensor data, identifies usage patterns, and adjusts lighting behavior accordingly. This self-learning capability provides high adaptability while keeping the user interface simple, effectively managing the trade-off between versatility and complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system provides efficient and adaptive lighting control that accurately reflects occupancy, reducing energy consumption and enhancing user experience by minimizing unnecessary light changes and aligning with user habits and preferences.
Implementation Method 1
one or more lasers may detect directional motion of the at least one person
Implementation Method 2
A load sensor may detect the presence of the at least one person occupying the bed
Data Source
AI summary
According to at least one embodiment, a computer-implemented method to illuminate a room is described. At least one person entering the room may be identified. The room may be illuminated based at least in part on the identifying. An occupancy count for the room may be maintained based at least in part on the illuminating, wherein the occupancy count comprises a number of one or more people present in the room. The room may be darkened based at least in part on the occupancy count for the room reaching a pre-determined count.