Image processing based heavy metal colorimetric recognition device and method

Abstract

The invention discloses an image processing based heavy metal colorimetric recognition device and method. The device comprises a shooting module, a light supplementing module, a fixing module, a control module, a power supply module, and a display module. The light supplementing module comprises an adjustable light supplementing lamp and a color assigning label. The adjustable light supplementinglamp and the shooting module are fixed on a fixed position and are opposite to a container. The color assigning label is installed on a water like container. The adjustable light supplementing lamp, the shooting module, and the display module are connected to the control module so that the heavy metal content can be displayed in a data form. The power supply module is used to supply power to the whole device. According to the method, a detection reagent is dropwise added into a collection water sample, after the detection reagent becomes stable, the shooting module can obtain the color imagesof the reaction liquid, and the images are preprocessed and input into a trained neural network so as to judge the heavy metal content. The provided device can precisely monitor the heavy metal content and has a high popularization value.

Description

technical field [0001] The invention relates to a heavy metal colorimetric identification technology, in particular to an image processing-based heavy metal colorimetric identification device and method, belonging to the field of water quality monitoring. Background technique [0002] With the rapid development of the global economy, the human demand for water resources is increasing, but at the same time the pollution of water resources is also becoming more and more serious. Heavy metal pollution accounts for a considerable proportion of water pollution. However, heavy metal pollution is easy to accumulate and expand in the biological chain, and is highly toxic. Therefore, excessive heavy metals in water and the problems caused by them have seriously endangered the ecological environment and human life and health, so the detection of heavy metal content in water is very important. important. [0003] At present, the technologies that are really applied to the on-line ana...

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Problems solved by technology

However, this method faces prominent ion interference problems, so the accuracy and reliability are not high, and it lacks automation

[0004] The invention patent with the application number CN 201510413799.1 discloses a device and method for predicting the concentration of heavy metals through image analysis, but the model established by it gives the prediction range of the metal concentration, which is difficult to establish and has low measurement accuracy. Insufficient, at the same time, the type of heavy metal needs to be identified first, and then the measured metal concentration is a range value, which is not accurate

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