Optical Lens Solar Tracking Measurement for Small-Angle Error Detection
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Solution Overview
Problem
Conventional solar position tracking systems face challenges in accurately measuring tracking accuracy due to light dispersion and cosine angle inaccuracy, particularly at small angles, which complicates error analysis and database establishment.
Innovation Solution
A solar position tracking accuracy measurement system utilizing an optical lens configuration with multiple convex lenses and a solar position measuring means, including an eyepiece, first, second, third, and fourth convex lenses, and a photosensitive device to analyze and correct error angles by refracting solar light and detecting coordinate changes, thereby minimizing physical errors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional solar position tracking measurement methods are used, then the measurement can be performed with simple equipment, but light dispersion and cosine angle inaccuracy occur leading to poor measurement precision
Solution Approach 1:
The patent introduces an optical lens system as an intermediary component between the sunlight source and the measurement detector. This intermediary system refracts and focuses the sunlight to create a precise measurement point, eliminating light dispersion issues and enabling accurate solar position tracking measurements without requiring complex computational corrections
Solution Approach 2:
The patent replaces conventional mechanical or computational measurement approaches with an optical-based measurement system. By using refraction and focal point detection through lenses, the system achieves precise angular measurement without relying on complex mechanical assemblies or computational algorithms to correct for light dispersion and cosine angle errors
2Measurement precision
If conventional measurement methods are used, then the equipment remains simple, but error calculation becomes inaccurate especially at very small cosine angles
Solution Approach 1:
The patent transforms the measurement parameter from direct small angle detection to focal point position detection. By converting angular measurement into linear position measurement at the focal plane, the system achieves high precision error calculation even at very small cosine angles, where conventional direct measurement methods fail
3Productivity
If conventional tracking systems are used, then the system structure remains simple, but real-time accuracy analysis and database establishment become difficult
Solution Approach 1:
The optical lens system performs self-alignment and automatic focusing, eliminating the need for complex external calibration equipment or manual adjustment mechanisms. The system inherently provides real-time accurate measurement data that can be directly used for database establishment and performance analysis
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
Enables real-time analysis and correction of tracking accuracy, applicable throughout the year, improving system efficiency and reliability by accurately measuring and analyzing error patterns and directions, and establishing a database for system corrections.
Implementation Method 1
an eyepiece 110 for refracting the solar light incident thereon
Implementation Method 2
a first convex lens 120 formed on a rear side of the eyepiece, a second convex lens 130 formed on a rear side of the first convex lens, a third lens 140 is formed on a rear side of the second convex lens, and a fourth convex lens 150 formed at a rear side of the third lens
Data Source
AI summary
The present invention relates to a solar position tracking accuracy measurement system based on an optical lens, by which the solar position tracking accuracy of a tracker can be effectively analyzed and detected in real-time by using a technique on the basis of an astronomical analysis on the trajectory of the sun through an accurate measurement based on an optical lens, thereby establishing the reproducibility of a physical measurement method, calculating an error angle according to the vertical incidence of solar light and minimizing physical errors.