Self-adaptive LED Illumination with Real-time Electrical Feedback
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Solution Overview
Problem
LEDs require precise electrical properties for effective operation and protection, but existing technologies lack the necessary precision in driving and installation, leading to potential errors and inefficiencies due to their independent nature.
Innovation Solution
A self-adaptive illuminating device comprising an illuminating unit, sampling module, sampling transformation module, control module, and power transformation module, which samples electrical properties, filters noise, and generates operational parameters to ensure precise drive voltage and current, thereby minimizing installation and fabrication errors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional LED driving methods are used with independent driving and illuminating, then device complexity is reduced, but manufacturing precision and reliability deteriorate due to fabrication errors and installation errors
Solution Approach 1:
The patent implements a feedback mechanism where the sampling module continuously monitors the actual electrical properties (current, voltage, temperature) of the LED, and the control module adjusts the driving parameters based on this feedback to maintain precise operating conditions. This resolves the contradiction by automatically compensating for fabrication and installation errors through real-time monitoring and adjustment, eliminating the need for extremely high initial manufacturing precision.
Solution Approach 2:
The system performs self-diagnosis and self-adjustment by automatically detecting its own operating state through the sampling module and correcting deviations through the control module. This self-service capability allows the system to maintain precise operation without requiring complex external calibration or adjustment mechanisms, thus improving manufacturing precision while keeping device complexity manageable.
2Reliability
If precise electrical properties are provided to protect LED, then reliability is improved, but ease of operation deteriorates due to requirement for skilled human knowledge in fabricating and installing
Solution Approach 1:
The illuminating device performs self-diagnosis and self-adjustment of driving parameters based on real-time sampling of its own operating state. This eliminates the need for skilled manual configuration during installation and operation, as the system automatically maintains reliable LED protection. The self-service capability directly improves ease of operation while preserving reliability.
Solution Approach 2:
The control module dynamically adjusts driving parameters (current, voltage, pulse width modulation duty cycle) based on sampled electrical properties and pre-stored association relationships. This automatic parameter adaptation allows the system to maintain reliable LED operation without requiring users to have specialized knowledge for manual parameter setting, thus improving ease of operation while ensuring reliability.
3Measurement precision
If sampling and feedback mechanism is implemented, then manufacturing precision is improved, but device complexity increases due to additional modules
Solution Approach 1:
The control module serves multiple functions: it stores association relationships between electrical properties, processes sampled feedback signals, generates control signals, and adjusts driving parameters. By consolidating these functions into a single multi-functional module rather than separate dedicated components, the system achieves high measurement precision while minimizing the increase in device complexity.
Solution Approach 2:
The patent combines the sampling module, transformation module, and control module into an integrated control system that works together as a unified feedback loop. This merging of functions reduces the overall system complexity compared to having completely separate independent components, while still maintaining the measurement precision needed for reliable LED operation.
4Reliability
If continuous sampling and adjustment is performed, then reliability is improved, but use of energy increases due to continuous operation of sampling and control modules
Solution Approach 1:
The sampling module performs periodic sampling of electrical properties rather than continuous monitoring, and the control module adjusts parameters at discrete intervals based on these periodic measurements. This periodic operation maintains reliable LED protection by detecting and correcting deviations while significantly reducing the energy consumption compared to truly continuous monitoring and adjustment.
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 self-adaptive device ensures precise and instant response to electrical property changes, preventing errors and ensuring proper illumination, even in the presence of changes, by continuously sampling and adjusting operational parameters.
Implementation Method 1
the sampling module samples at least one electrical property of the illuminating unit to generate a first feedback signal in response to a test signal
Implementation Method 2
the sampling transformation module filters out noises off the first feedback signal for generating a second feedback signal
Implementation Method 3
the power transformation module generates a drive voltage corresponding to an input voltage and the operation signal
Data Source
AI summary
A self-adaptive illuminating device includes an illuminating unit, a sampling module, a sampling transformation module, a control module and a power transformation module. The sampling module samples at least one electrical property of the illuminating unit to generate a first feedback signal in response to a test signal. The sampling transformation module filters out noises off the first feedback signal for generating a second feedback signal. The control module generates an operation signal that carries at least one operational parameter of the illuminating unit in response to the second feedback signal. The power transformation module generates a drive voltage corresponding to an input voltage and the operation signal. The power transformation module drives the illuminating unit using the drive voltage.