Integrated Control Board for Solar Lighting Systems
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Solution Overview
Problem
Conventional solar lighting systems face issues with maintenance and repair due to separate components for solar panel charging, battery management, and LED lighting control, leading to increased costs and inefficiencies, as well as reliance on external power sources when sunlight is insufficient.
Innovation Solution
An integrated control board system that includes an MPPT circuit for optimizing solar energy charging, a battery charging unit, and an LED driver, along with a microprocessor for error diagnosis and control, allowing for real-time monitoring and group control of solar lighting systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate substrates are used for charging circuit, battery charging and discharging circuit, and lighting driver, then each circuit can be independently controlled, but the number of parts increases and assembly processes become more complex
Solution Approach 1:
The patent combines the charging circuit, battery charging and discharging circuit, and lighting driver into a single integrated substrate. This integration reduces the number of separate parts and simplifies assembly processes while maintaining the independent control capability of each circuit through dedicated control units on the integrated substrate.
2Ease of manufacture
If rated output of LED module is not automatically detected, then lighting driver can be designed for specific power ratings, but installation cost increases and maintenance becomes difficult when LED modules with different ratings are used
Solution Approach 1:
The lighting driver includes a detection unit that automatically detects the rated output of the LED module through feedback signals. This allows the system to adapt to different LED module power ratings without manual configuration, reducing installation costs and simplifying maintenance while maintaining design simplicity.
3Reliability
If PWM control is used to prevent over-input, over charge, and over-discharge, then battery safety is improved, but history information cannot be checked and situation handling is insufficient when failure occurs
Solution Approach 1:
The patent introduces a monitoring unit as an intermediary that records operational history and status information of the battery and control circuits. This monitoring unit preserves all operational data and error histories, enabling comprehensive troubleshooting and situation handling while maintaining the PWM control safety features.
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
This solution enhances power generation and charging efficiency, simplifies maintenance, reduces component complexity, and enables independent operation without external power by optimizing sunlight usage and providing real-time monitoring and control capabilities.
Implementation Method 1
power generation using sun energy in which such light energy is converted into electric energy
Data Source
AI summary
Provided in one embodiment of the present invention is a photovoltaic the lighting system comprising: an MPPT circuit unit for controlling a battery charging voltage by calculating the maximum power point of electrical energy generated from a photovoltaic panel; a battery charging unit for charging and discharging, in a battery, the electrical energy controlled by the MPPT circuit unit; a lighting unit in which a plurality of LEDs are combined; a lighting driver for turning on or off the lighting unit by supplying power supplied from the battery; and an integrated control board including a microprocessor, which checks a residual quantity of the battery, overcharging of the battery, a discharge quantity, a discharge time, and a lighting state and brightness of the lighting unit through the MPPT circuit unit, the battery charging unit, and the lighting driver so as to diagnose an error and perform integrated control.