Water Treatment Imaging for Aggregate State Detection
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Solution Overview
Problem
Existing water treatment systems struggle to accurately determine the state of water in tanks due to interference from light sources and dirt on tank surfaces, affecting coagulant dosage and treatment efficiency.
Innovation Solution
A water treatment system that includes an imaging device to capture images of the water, a control device for grayscale and differential processing of the images to calculate feature values, and a control signal generator to adjust coagulant addition based on these values, ensuring accurate determination of aggregate states and optimized coagulant dosage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Difficulty of detecting and measuring
If transmitted light intensity measurement is used to determine water state, then the measurement process is simple, but the measurement precision deteriorates due to interference from light sources and dirt on tank surfaces
Solution Approach 1:
The patent introduces an imaging device as an intermediary to capture images of the water surface, which are then processed through grayscale conversion and differential operations. This intermediary imaging approach allows the system to extract water state information (such as aggregate formation) without being directly affected by the interfering light sources and tank surface dirt, thus resolving the contradiction between simple measurement and accurate determination
Solution Approach 2:
The patent replaces the direct optical measurement method (which is sensitive to environmental interference) with an image processing-based approach. By capturing images and applying grayscale and differential processing, the system substitutes the vulnerable optical intensity measurement with a more robust image analysis method that can filter out interference from light sources and tank surface conditions
2Measurement precision
If image processing with grayscale and differential operations is performed, then the measurement precision improves for determining water state, but the device complexity increases
Solution Approach 1:
The control device is designed to perform multiple functions: capturing images, converting to grayscale, performing differential operations, and determining water state. By consolidating these functions into a single control device, the patent reduces overall system complexity while maintaining high measurement precision, as the same device handles all processing steps rather than requiring separate specialized components for each function
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 approach allows for precise monitoring and control of water treatment processes, enhancing the accuracy of determining water states and optimizing coagulant addition, leading to improved treatment efficiency.
Implementation Method 1
the state of the raw water is determined using the transmitted light intensity as an optical measurement value
Implementation Method 2
suspended solid (SS) in the water to be treated are aggregated to form flocs
Data Source
AI summary
The present application includes a tank into which water to be treated flows, an imaging device for capturing an image of water into which coagulant has been added and that is stored in the tank, and a control device for performing grayscale processing of the image captured by the imaging device, performing differential processing of the image subjected to the grayscale processing, and determining the state of the aggregate in the water based on the feature value calculated from the result of performing differential processing.