Lighting Device Visual Signature Generation
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Solution Overview
Problem
Traditional lighting systems lack the capability to effectively acquire and manage information about an illuminated area beyond general illumination, limiting their potential for monitoring and tracking purposes.
Innovation Solution
Integration of a light source, image sensor, controller, memory, and wireless transceiver in lighting devices to generate and store visual signatures of persons or objects, associating them with identification information for monitoring and tracking applications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If traditional lighting systems are used for general illumination, then the lighting function is provided, but the capability to acquire and manage information about the illuminated area is lacking
Solution Approach 1:
The lighting device is designed to perform multiple functions: general illumination through the light source, information acquisition through the image sensor, and data transmission through the wireless transceiver. This multi-functionality transforms a single-purpose lighting system into a versatile platform that simultaneously provides lighting and monitoring capabilities, resolving the contradiction between information acquisition and functional versatility.
2Illumination intensity
If lighting devices are distributed to cover the entirety of a room or building, then complete illumination coverage is achieved, but the potential for monitoring and information acquisition is underutilized
Solution Approach 1:
Each distributed lighting device is equipped with both illumination and sensing capabilities. The image sensor in each device captures visual information about the illuminated area, and the wireless transceiver transmits this information to a host system. This allows the lighting infrastructure to simultaneously provide complete illumination coverage and comprehensive monitoring capability, resolving the underutilization of monitoring potential.
3Loss of information
If sensors are added to lighting devices for detecting ambient conditions, then environmental monitoring is enabled, but the capability to generate visual signatures for identification is not achieved
Solution Approach 1:
The system separates environmental sensing functions from visual identification functions. The image sensor is specifically configured to capture images for visual signature generation, while other sensors detect ambient conditions. The controller processes image data to generate unique visual signatures that identify persons or objects, achieving precise identification capability distinct from general environmental monitoring.
Data Source
AI summary
A lighting device includes a light source, an image sensor, a controller, a memory, and a wireless transceiver. The light source is configured to emit light for general illumination. The image sensor is configured to acquire an image of an area illuminated by the light source. The controller is coupled to control the image sensor and to receive the acquired image of the illuminated area from the image sensor. The controller is configured to operate the wireless transceiver to receive identification information from a wireless device in the illuminated area. The controller is further configured to automatically generate a visual signature based on image information of a person or object, obtained from the image of the illuminated area. The controller also is configured to store the visual signature of the person or object in the memory in association with the wireless device identification information.