Rotatable Lamp with Dual Camera Tracking
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Solution Overview
Problem
Conventional human body detection lamps suffer from imprecision and erroneous triggering due to inadequate infrared detection, and are not adaptable to various environmental conditions for installation.
Innovation Solution
A lamp design incorporating two camera heads with a motor and lighting device, where the camera heads detect movement and trigger the lighting and motor to rotate the lighting device towards the moving object, enhancing precision and adaptability with a digital circuit for accurate detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If an infrared detector is used for human body detection, then the lamp can be triggered to emit light beams, but the detection precision is insufficient and erroneous triggering occurs frequently
Solution Approach 1:
The patent divides the detection system into multiple independent camera heads (at least two) instead of using a single infrared detector. Each camera head independently monitors a specific detection area, and the system integrates their signals to determine human body presence. This segmentation improves detection precision by providing multiple verification points and reduces erroneous triggering through cross-validation of detection results from different camera heads.
Solution Approach 2:
The patent introduces a microprocessor as an intermediary between the camera heads and the lighting control system. The microprocessor processes images from multiple camera heads, integrates the detection information, and makes intelligent judgment about human body presence. This intermediary enables complex image processing and pattern recognition that simple infrared detectors cannot perform, thereby improving detection accuracy and reducing false alarms.
2Adaptability or versatility
If a fixed lighting device is used, then the structure is simple, but the lamp cannot adapt to different installation environmental conditions
Solution Approach 1:
The patent transforms the fixed lighting device into a rotatable one by adding a rotation mechanism driven by a motor. The lighting device can now rotate to change its illumination direction and adapt to different installation environments and detection requirements. This dynamic adjustment capability allows the same device to be used in various configurations without requiring multiple fixed installations, thereby improving adaptability while accepting moderate increases in structural complexity.
Data Source
AI summary
A lamp includes a mounting portion secured to a wall, a fixed unit coupled to the mounting portion and having two cameras at an angle, a rotation unit rotatably mounted on the fixed unit and having a lighting device, and a motor configured to rotate the rotation unit in response to the cameras detecting movement of an object, and direct light from the lighting device towards the object.