LED Color Temperature Tuning via Contactless Power Allocation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing lighting systems, particularly those using mechanical switches, pose safety concerns in environments prone to gas explosions and require manual operation, which can lead to contamination issues. Additionally, existing touchless switches often have complex designs or inefficient power control mechanisms.
Innovation Solution
A microcontroller-based electronic switch with controllable semiconductor switching elements and a detection device, such as an infrared ray sensor or electrostatic induction sensor, that converts external motion signals into message-carrying sensing signals to control lighting loads with different color temperatures, enabling on/off, dimming, and color temperature tuning without manual contact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If mechanical switches are used for lighting control, then the device structure is simple, but sparks are generated in hazardous environments and manual operation causes contamination
Solution Approach 1:
The patent replaces mechanical switches with electronic switching devices (MOSFETs, triacs, or IGBTs) controlled by microcontrollers. This substitution eliminates mechanical contact that generates sparks while enabling touchless operation through sensors, thus resolving the contradiction between structural simplicity and safety in hazardous environments.
Solution Approach 2:
The patent introduces sensors (infrared, ultrasonic, or capacitive) as intermediaries between the user and the lighting system. These sensors detect motion or touch without direct contact, allowing the microcontroller to activate the electronic switches accordingly. This intermediary mechanism eliminates both spark generation and contamination while maintaining operational simplicity.
2Object-affected harmful factors
If touchless switches with sensors are used, then safety in hazardous environments is improved, but the device complexity increases
Solution Approach 1:
The patent integrates multiple functions into a single microcontroller-based control system that handles sensor input processing, dimming control, color temperature adjustment, and switch activation. By consolidating these functions into one intelligent controller, the system achieves touchless operation and hazard safety without proportionally increasing overall device complexity.
Solution Approach 2:
The patent combines the sensor module, microcontroller, electronic switching elements, and lighting control circuits into an integrated control system. This merging approach reduces the number of separate components and interconnections needed, thereby limiting the increase in device complexity while maintaining the safety benefits of touchless operation.
3Adaptability or versatility
If multiple LED loads with different color temperatures are used, then lighting versatility is improved, but power control complexity increases
Solution Approach 1:
The patent employs dynamic power allocation where the microcontroller continuously adjusts the power distribution to multiple LED loads based on user input or preset scenarios. The system can smoothly transition between different color temperatures and combinations, providing versatile lighting options while the microcontroller manages the complexity of real-time power control through software algorithms.
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 solution provides a safe, efficient, and user-friendly control system for lighting systems, avoiding sparks in hazardous environments and allowing for seamless control of lighting levels and color temperature through a contactless interface, enhancing safety and operational convenience.
Implementation Method 1
A microcontroller-based electronic switch with controllable semiconductor switching elements and a detection device, such as an infrared ray sensor or electrostatic induction sensor
Implementation Method 2
A microcontroller-based electronic switch with controllable semiconductor switching elements and a detection device, such as an infrared ray sensor or electrostatic induction sensor
Data Source
AI summary
A theory and a technical foundation for building a technical framework of a color temperature tuning technology are disclosed composing a power allocation algorithm and a power allocation circuitry, wherein the power allocation algorithm is a software for designing a process of dividing and sharing a total electric power between at least a first LED load with a color temperature CT1 and a second LED load with a color temperature CT2 to generate at least one paired combination of a first electric power X allocated to the first LED load and a second electric power Y allocated to the second LED load to create at least one mingled light color temperature CTapp thru a light diffuser according to color temperature tuning formulas CTapp=CT1·X/(X+Y)+CT2·Y/(X+Y) and X+Y=constant; and the power allocation circuitry is a hardware designed for implementing the process.