Camera-Based Biodisc Concentration Measurement System
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Solution Overview
Problem
Conventional systems for measuring the concentration of a detection target on a rotating biodisc are qualitative, leading to incorrect conclusions and require costly, complex optical systems for reliable quantitation.
Innovation Solution
A system utilizing a camera module and an illumination unit, with a printed circuit board, to measure light transmission or reflection from the detection target, allowing for quantitative concentration determination at a lower cost.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a conventional quantitative system with laser light source and photodiode is used, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The patent replaces the conventional photodiode detection system with a camera module that captures optical images of the biodisc. The camera creates a visual copy of the light transmission/reflection patterns, which are then analyzed to determine concentration. This copying approach simplifies the optical system while maintaining measurement capability through image processing.
Solution Approach 2:
The patent substitutes the mechanical/optical alignment system (laser + photodiode requiring precise positioning) with a camera-based system that captures the entire biodisc view. This replaces complex mechanical alignment requirements with a more flexible imaging approach, reducing device complexity while achieving quantitative measurement.
2Measurement precision
If a conventional quantitative system with laser light source and photodiode is used, then measurement precision is improved, but manufacturing cost increases
Solution Approach 1:
The camera module provides a cost-effective alternative to expensive laser-photodiode systems. By capturing images that can be processed to extract concentration information, the system achieves quantitative measurement at lower manufacturing cost, making the technology more accessible for practical applications.
3Device complexity
If a qualitative system is used, then device complexity is reduced, but measurement precision deteriorates
Solution Approach 1:
The system incorporates a concentration determination unit that processes camera images to calculate quantitative concentration values. This feedback mechanism transforms the simple image capture into a precise measurement system by comparing observed light transmission/reflection patterns against reference data or calibration curves, achieving both simplicity and precision.
Solution Approach 2:
The patent measures concentration by detecting changes in light transmission or reflection parameters captured by the camera. By analyzing variations in optical parameters (intensity, distribution patterns) across different biodisc positions, the system achieves quantitative measurement with a simple camera-based setup, resolving the contradiction between simplicity and precision.
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 reliable, quantitative measurement of detection target concentration using a cost-effective setup, improving detection sensitivity and reducing the complexity and cost of the optical system.
Implementation Method 1
measuring the concentration of a detection target using the transmission or reflection of light
Implementation Method 2
measuring the concentration of a detection target using the transmission or reflection of light
Data Source
AI summary
Provided are a method and/or apparatus for measuring the concentration of a detection target using the transmission or reflection of light. The system includes an illumination unit disposed over a biodisc and configured to apply light to the detection target included in the biodisc and a camera module disposed below the biodisc and configured to measure the amount of light transmitted through the detection target.