Light Source Selection Based on Human Presence Type
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Solution Overview
Problem
Existing smart surveillance camera systems require manual configuration to determine which light source to activate upon human presence detection, leading to suboptimal performance and unnecessary disturbance to occupants.
Innovation Solution
A system comprising at least one input interface, a control interface, and a processor that receives input indicating human presence, determines the type of presence, decides whether to activate an infrared or visible-light light source based on the type, and controls the activation of the selected light source.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If visible-light light source is activated to illuminate the monitored area, then image quality is improved, but disturbance to occupants and neighbors increases
Solution Approach 1:
The system changes the wavelength parameter of the light source by selecting between infrared and visible-light light sources based on the detected human presence type. Infrared light is used for intruders to maintain image quality without visible disturbance, while visible light is used for known persons when illumination is needed.
Solution Approach 2:
The processor acts as an intermediary that analyzes the type of human presence detected and automatically selects the appropriate light source. This intermediary decision-making process resolves the contradiction by matching the light source type to the specific situation without requiring manual user configuration.
2Adaptability or versatility
If manual configuration is required to select light source type, then system adaptability is reduced, but user control is maintained
Solution Approach 1:
The system performs self-service by automatically determining the appropriate light source type based on the detected human presence characteristics. The processor analyzes the input data and autonomously selects between infrared and visible-light light sources, eliminating the need for manual user configuration while maintaining high adaptability to different situations.
Solution Approach 2:
The system uses feedback from the detection of human presence type to automatically adjust the light source selection. The processor continuously monitors the detected presence characteristics and adjusts the light source type accordingly, creating a closed-loop system that adapts to changing conditions without user intervention.
3Object-affected harmful factors
If infrared light source is used for night vision, then disturbance is minimized, but illumination of wide area is insufficient
Solution Approach 1:
The system dynamically adjusts the light source type based on the detected human presence type. Infrared light sources are used for intruders to minimize disturbance, while visible-light light sources are activated for known persons when wider area illumination is required, creating a dynamic adaptation to different operational scenarios.
Data Source
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AI summary
A system (41) for activating an infrared light source is configured to receive input indicating human presence in a space, determine a type and/or probability of the human presence based on the input, decide whether to activate an infrared light source (12) or a visible-light light source (11) in the space based on the type and/or probability of the human presence, and activate the infrared light source or the visible-light light source in dependence on the decision.