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Image-based micro-chemical process liquid level detecting method

A liquid level detection and micro-chemical technology, applied in liquid/fluid solid measurement, measurement device, liquid level indicator, etc., can solve problems such as liquid level measurement, and achieve the effect of fast speed, high precision and accurate calculation results

Inactive Publication Date: 2013-07-10
ZHEJIANG UNIV
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Problems solved by technology

[0005] The problem to be solved by the present invention is to provide a liquid level detection method for micro-chemical process based on image recognition to solve the problem of liquid level measurement in micro-chemical process control

Method used

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  • Image-based micro-chemical process liquid level detecting method
  • Image-based micro-chemical process liquid level detecting method
  • Image-based micro-chemical process liquid level detecting method

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Embodiment Construction

[0016] The specific implementation of the present invention includes two parts, algorithm implementation and device implementation, which will be described in detail below.

[0017] 1 algorithm implementation

[0018] Such as figure 1 As shown, the algorithm of the image-based microchemical process liquid level detection method includes liquid level image acquisition, liquid level image grayscale, liquid level image binarization, liquid level image edge detection, liquid level image corner detection, The descriptions are as follows:

[0019] 1.1 Liquid level image acquisition, liquid level image grayscale and liquid level image binarization

[0020] The image data is collected by the image collection device to the image processing device. If the collected image is a liquid level array, the image needs to be segmented to obtain a single liquid level image. Generally speaking, the collected image is an RGB image, so it is necessary to convert the collected RGB image into an ...

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Abstract

The invention provides an image-based micro-chemical process liquid level detecting method. The image-based micro-chemical process liquid level detecting method comprises the following steps: continuously shooting and collecting liquid level images of a micro-chemical process through a camera lens or a camera; performing liquid level image preprocessing algorithm to the collected liquid level images to obtain binary images of the liquid level images and performing liquid level corner detecting algorithm on the collected liquid level images to obtain positions of liquid level feature points sequentially; and based on the positions of the feature points, computing the height of a current liquid level in real time. By the image-based micro-chemical process liquid level detecting method, real-time, on-line, accurate, low-cost and non-contact detection on liquid level in a single micro-chemical process or liquid levels in multiple micro-chemical processes can be performed; and the image-based micro-chemical process liquid level detecting method can be widely applied to liquid level detection in various micro-chemical processes.

Description

technical field [0001] The invention relates to liquid level detection technology in industrial process control, in particular to an image-based microchemical process liquid level detection method. Background technique [0002] In recent years, the application technology of continuous flow microfluidics in chemical engineering, that is, microchemical process, has received more and more attention in the field of microscopic technology and chemical engineering. The process of micro-chemical industry can realize the continuous chemical reaction in a small volume range, so that the conversion rate and selectivity of the reaction are significantly improved, and the heat transfer coefficient and mass transfer performance are significantly enhanced compared with the conventional scale chemical process . The new process of microchemical industry can meet the requirements of industrial scale production for process intensification, realize "better" (high yield, better selectivity) an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01F23/00
Inventor 卢建刚叶昕鑫
Owner ZHEJIANG UNIV
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