RF Lighting System Illumination Range Adjustment
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Solution Overview
Problem
Intelligent lighting devices using sound control, microwave sensing, and infrared sensing are unsuitable for environments like mines, tunnels, or automated production workshops due to interference from noise and high temperatures, which can trigger these devices incorrectly.
Innovation Solution
A lighting system with an illumination range adjustment function based on radio frequency signal control, comprising a radio frequency control module, a first light-emitting module, and a second light-emitting module. The system activates the light-emitting modules only when the signal strength of the radio frequency control signal exceeds a threshold value, preventing incorrect triggering in high-interference environments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If microwave sensing or infrared sensing is used for intelligent lighting control, then the lighting device can detect motion and temperature changes, but the sensing function is interfered by noise and high temperatures in environments like mines, tunnels, or automated production workshops
Solution Approach 1:
The patent replaces acoustic field-based sensing (sound control) and electromagnetic field-based sensing (microwave and infrared sensing) with radio frequency signal control. This substitution eliminates the interference from noise and high temperatures that affects the original sensing mechanisms, enabling reliable operation in industrial environments such as mines, tunnels, and automated production workshops.
Solution Approach 2:
The patent changes the control parameter from sound waves, microwave, or infrared radiation to radio frequency signals. By using radio frequency signals with specific threshold values, the system can distinguish between valid control signals and environmental interference, thereby maintaining reliable sensing function in high-temperature and high-noise environments.
2Reliability
If the lighting system uses radio frequency control signals with threshold values to activate light-emitting modules, then incorrect triggering is prevented in high-interference environments, but the illumination range is limited by signal strength attenuation over distance
Solution Approach 1:
The patent segments the illumination area into multiple zones with different light-emitting modules. Each module can be independently activated based on the radio frequency signal strength at its location. This segmentation allows the system to provide reliable control in the immediate area while extending illumination coverage to larger areas by activating multiple modules, thus resolving the contradiction between control accuracy and illumination range.
Data Source
AI summary
The present invention discloses a lighting system with illumination range adjustment function based on radio frequency signal control, which includes a radio frequency control module, first light-emitting module and second light-emitting module. The radio frequency control module is disposed at a central point and generates a radio frequency control signal. The first light-emitting module receives the radio frequency control signal. A first reference circle passes through the first light-emitting module, and the center thereof coincides with the central point. The second light-emitting module receives the radio frequency control signal. A second reference circle passes through the second light-emitting module, and the center thereof coincides with the central point. The first light-emitting module is activated when the signal strength of the radio frequency control signal exceeds a threshold value. The second light-emitting module is activated when the signal strength of the radio frequency control signal exceeds the threshold value.