Liquid Level Detection via Marking Component Width Analysis
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Solution Overview
Problem
Current external ventricular drainage systems require manual observation of liquid levels, necessitating a method for automatic detection to facilitate timely medical interventions.
Innovation Solution
A liquid level detecting method and device that captures and analyzes images of a transmissive container with a marking component to determine the liquid level by calculating width differences at various position points, using a camera, image analyzer, and liquid level determiner to identify points outside a preset range as the liquid level.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If manual observation of liquid level is used, then medical staff can observe the liquid level change, but it requires continuous human presence and cannot provide automatic detection
Solution Approach 1:
The patent replaces the manual mechanical observation system with an automated optical detection system. A camera captures images of the liquid level in the collection bottle, and image processing algorithms automatically analyze the liquid level position based on the marking component. This substitution eliminates the need for continuous human presence while enabling real-time automatic detection and timely medical response.
2Measurement precision
If a simple liquid level detection method is used, then the device is easy to operate, but it cannot provide accurate liquid level detection
Solution Approach 1:
The patent introduces a marking component as an intermediary element attached to the collection bottle. This marking component serves as a reference standard that enables accurate liquid level detection by providing known position references. The camera captures images of this marking component, and image processing algorithms use it to calculate the liquid level position with high precision, thereby achieving accurate measurement without overly complex detection methods.
Solution Approach 2:
The patent uses image capture to create a visual copy of the liquid level and marking component. The camera takes photographs of the collection bottle, and image processing algorithms analyze these digital copies to determine the liquid level position. This copying approach allows for precise measurement through digital image analysis while keeping the physical detection device simple.
3Ease of operation
If no automatic detection system is implemented, then the device structure remains simple, but medical staff must be on site for continuous monitoring
Solution Approach 1:
The patent implements a self-service detection system where the collection bottle itself becomes part of the detection mechanism. The marking component attached to the bottle works together with the camera to enable automatic liquid level detection without requiring external complex equipment or continuous human monitoring. The system serves itself by using the bottle's own structure and markings as the basis for automated detection, greatly improving monitoring convenience while achieving a reasonable level of automation.
Data Source
AI summary
A liquid level detecting method is provided. Firstly, a receiving component is provided, wherein the receiving component includes a transmissive container for containing a liquid and a marking component located on a rear surface of the transmissive container. Then, a camera captures a receiving component image of the receiving component from a front surface of the transmitting container, wherein the receiving component image includes a transmissive container image and a marking component image. Then, the marker component image is analyzed downward from an end portion to obtain multiple width values of multiple position points of the marker component image. Then, a width difference between each width value and a width average of the marking component image is obtained. Then, a position point whose width difference value is not within a preset range is determined. Then, according to the position point, a liquid level of the liquid is determined.