Weather-Adaptive Lamp Control with Visible and Infrared LEDs
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current street lamps lack infrared LED light panels, resulting in insufficient infrared intensity for self-driving cars, and only provide visible light with poor water vapor permeability, limiting visibility in adverse weather conditions.
Innovation Solution
A lamp system with a controller that outputs dimming signals adjusted by weather factors, coupled with current conversion modules to control light-emitting devices, including both visible and infrared light-emitting diodes, to enhance visibility and infrared intensity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If only visible light LED light panels are installed in street lamps, then the structure is simple and cost-effective, but visibility for self-driving cars and surveillance equipment is insufficient in adverse weather conditions
Solution Approach 1:
The patent combines visible light LED light panels and infrared LED light panels into a single street lamp system. The controller integrates control of both visible and infrared light-emitting devices, merging their functions to provide comprehensive lighting that maintains visibility in adverse weather conditions while preserving structural efficiency
2Device complexity
If only visible light band is provided in street lamps, then the device complexity is low, but infrared intensity for self-driving cars is insufficient at night
Solution Approach 1:
The street lamp system is designed with multi-functionality by incorporating both visible light emission (for general illumination) and infrared light emission (for enhanced detection by self-driving cars and surveillance equipment). The controller manages multiple light-emitting devices with different spectral characteristics, enabling the single system to serve multiple functional purposes without significantly increasing complexity
3Ease of manufacture
If visible light is used for street lighting, then the lighting system is simple and effective for general illumination, but water vapor permeability is poor, limiting visibility in foggy or rainy conditions
Solution Approach 1:
The patent changes the spectral parameter of the light emitted by the street lamp by incorporating infrared LED light panels. Infrared light has different interaction properties with water vapor compared to visible light, allowing it to penetrate fog and rain more effectively. This parameter change in light wavelength enables the system to overcome the harmful effect of water vapor on visibility while maintaining system simplicity
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system improves visibility for self-driving cars by increasing the red light component in visible light and adding infrared light-emitting devices, ensuring sufficient infrared intensity even in adverse weather conditions.
Implementation Method 1
a plurality of light-emitting devices and a plurality of current conversion modules. The current conversion modules are coupled to the light-emitting devices
Data Source
AI summary
A lamp includes a controller, a plurality of light-emitting devices and a plurality of current conversion modules. The controller is configured to output a dimming signal, which is adjusted according to at least one weather factor. The current conversion modules are coupled to the light-emitting devices and configured to generate a current signal according to the dimming signal to control the light-emitting devices, wherein the dimming signal is related to a visible light including a red light or an infrared light emitting characteristic of the light-emitting devices.