Adaptive Lighting Spectrum Control for Deterring Unwanted Activity
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Solution Overview
Problem
Existing systems for detecting and deterring unwanted behaviors, such as graffiti or drug use, are inefficient and prone to false alarms, and sonic alarms often fail to deter the behavior effectively.
Innovation Solution
A lighting system with a programmable controller that changes the light spectrum in response to sensor data, using image recognition to classify unwanted activities and adjust the lighting to reduce the visibility of the activity, accompanied by additional measures like increased light intensity or alerts when necessary.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a sonic alarm is used to detect and deter unwanted behaviors, then detection capability is improved, but the effectiveness in deterring the behavior deteriorates
Solution Approach 1:
The patent changes the parameter of light spectrum wavelength to deter unwanted behavior. The lighting device emits light in a specific wavelength range (e.g., blue light around 450-480nm) that reduces the visibility of veins and skin discoloration associated with drug injection, thereby changing the visual parameters of the environment to discourage the unwanted activity.
Solution Approach 2:
The patent converts the harmful effect of visible veins and skin discoloration (which facilitate drug injection) into a benefit by using specific wavelength light to make these visual cues invisible, thus transforming the lighting condition from neutral to actively deterrent against the unwanted behavior.
2Measurement precision
If light intensity is increased to improve visibility of unwanted activities, then detection precision is improved, but energy consumption increases
Solution Approach 1:
Instead of increasing light intensity, the patent changes the wavelength parameter of the light to achieve the detection and deterrence goals. By selecting a specific wavelength range that affects the visibility of biological features (veins, skin discoloration), the system achieves effective monitoring and deterrence without the energy penalty of high-intensity illumination.
Data Source
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AI summary
A lighting-system (100) for illuminating an environment, comprising a lighting module (111, 112, 113), a sensor (141, 142, 143) and a lighting-system control device (130). The lighting module (111, 112, 113) comprises a light source (121) for emitting light, and a programmable controller (122) configured to control an operation of the light source. The sensor is arranged to obtain sensing data from an area illuminated by the light source (121). The lighting-system control device (130) comprises a processor circuit (133) configured to apply an activity classifier to the sensing data to obtain an activity classification for the area, to determine lighting control data to change a light spectrum of the light source based on the activity classification, and to transmit the lighting control data to the lighting module (111, 112, 113) to program said lighting module according to the lighting control data.