Variable Wavelength Quantum Dot Sensor for Plant Nutrient Analysis
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Solution Overview
Problem
Conventional spectroscopic analysis devices are expensive and time-consuming, making it difficult for non-experts to perform component analysis of food and plant samples, which varies by region and growth conditions, necessitating a low-cost and miniaturized solution for component measurement.
Innovation Solution
An image-based component measurement system using a light unit that outputs variable wavelengths, employing quantum dots to emit specific wavelengths for analyzing target objects, comprising a variable wavelength light unit, image acquiring and analyzing units, a control unit, storage, and input/output units, allowing for component content estimation through image processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional spectroscopic analysis devices are used, then measurement precision is improved, but device cost and complexity increase
Solution Approach 1:
The patent uses image sensors to capture optical absorption spectra, creating a simplified copy of the measurement function performed by expensive spectroscopic devices. Instead of using complex spectrometers, the system captures images at multiple wavelengths and processes them to extract component information, achieving comparable measurement precision with much lower cost and complexity
Solution Approach 2:
The patent replaces mechanical/optical spectroscopic systems with an image-based system using standard image sensors. By substituting the complex optical path and mechanical components of traditional spectrometers with a simpler imaging approach, the system achieves component analysis with reduced device complexity and cost while maintaining measurement capability
2Measurement precision
If conventional spectroscopic analysis devices are used, then measurement precision is improved, but analysis time increases
Solution Approach 1:
The patent employs periodic action by capturing images at multiple discrete wavelength points in sequence rather than using continuous spectral scanning. The system takes a series of images at specific wavelengths (e.g., 405nm, 530nm, 630nm, 730nm) and processes them together, achieving both measurement precision and reduced analysis time by avoiding continuous scanning while still gathering comprehensive spectral information
Solution Approach 2:
The system performs preliminary action by pre-selecting and capturing images at all necessary wavelength points before performing the actual component analysis. The multiple wavelength images are acquired in advance and stored, then processed together to determine component concentrations, eliminating the need for sequential analysis of each wavelength and reducing total analysis time
3Measurement precision
If conventional spectroscopic analysis devices are used, then measurement precision is improved, but ease of operation deteriorates
Solution Approach 1:
The patent implements self-service by incorporating automated image processing and component analysis algorithms that perform the complex spectral analysis without requiring expert intervention. The system automatically captures images at multiple wavelengths, processes the spectral data, identifies components, and calculates concentrations, making the measurement function self-executing and eliminating the need for expert operators to manually analyze spectra
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 low-cost, rapid component analysis of plant nutrients, reducing time and cost, and allowing for immediate feedback, while maintaining sufficient accuracy for cultivating crops with specific nutritional requirements.
Implementation Method 1
a sheet on which a plurality of quantum dots, which can be controlled to have a wavelength necessary for measuring a configuration component of a target object, are arranged
Implementation Method 2
a variable wavelength light unit that outputs light having a wavelength necessary for analyzing a component of a target object... a wavelength changing unit that is spaced from the light source by a predetermined distance and comprises a quantum dot for emitting light corresponding to a predetermined wavelength
Implementation Method 3
an image analyzing unit that processes an image acquired by the image acquiring unit and analyzes an absorption wavelength and a reflection wavelength of the target object to estimate a component content of the target object
Data Source
AI summary
The present disclosure relates to an image-based component measurement system using a light unit that outputs a variable wavelength, a method thereof, and a plant cultivation method using the same. More specifically, the present disclosure provides an image-based component measurement system using a light unit that outputs a variable wavelength, a method thereof, and a plant cultivation method using the same, which collect and analyze data based on image information acquired by emitting light having a specific wavelength using a sheet on which a plurality of quantum dots which can be controlled to have a wavelength necessary for measuring a configuration component of a target object are arranged. Thus, the system and methods are able to measure component content contained in the target object using a low cost and miniaturized device, and cultivate a plant by adjusting content of nutrients of the plant using the measured component content.