Comprehensive evaluation method of water quality based on water pollution index method and cloud models

Abstract

The invention discloses a comprehensive evaluation method of water quality based on a water pollution index method and cloud models, and relates to an improvement on the water pollution index method by using the cloud models based on the water pollution index method. The cloud models are combined with WPI values in the water pollution index method, a WPI value evaluation cloud model is obtained by a cloud parameter determination method, a single factor WPI value cloud model is obtained by a backward cloud generator, a normal cloud generator is used to generate a WPI value evaluation cloud picture and a single factor WPI value cloud picture to intuitively see the pollution status of each single factor; weights are combined, a comprehensive WPI value cloud model is obtained through a comprehensive cloud algorithm, and comprehensive evaluation grades of the water quality are intuitively displayed by a form of cloud droplets and determined, so that the problems that contributions of all pollution factors in comprehensive evaluation of the water quality are not considered in the water pollution index method and comparisons among different sections are difficultly realized are effectively solved.

Description

technical field [0001] The invention belongs to the technical field of information processing, and relates to a water quality comprehensive evaluation method based on a water pollution index method and a cloud model. Background technique [0002] The water environment system is a complex system integrating fuzziness and randomness. To ensure the rationality of water quality evaluation results, the fuzziness and randomness in the evaluation process must be considered comprehensively. [0003] Existing literature: "China Environmental Monitoring", Issue 03, 2013 published an article "Research on the Application of Water Pollution Index Method in River Water Quality Evaluation", which disclosed the evaluation ideas of water pollution index method: [0004] Based on the evaluation principle of the single factor evaluation method, according to the correspondence table between water quality category and WPI value (water pollution index value) (see Table 3), the WPI value of each p...

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Problems solved by technology

[0030] The purpose of this invention is to provide a kind of water quality comprehensive evaluation method based on water pollution index method and cloud model, cloud model and the WPI value in the water pollution index method are combined, obtain WPI value evaluation cloud model by cloud parameter determining method, by The reverse cloud generator obtains the single-factor WPI value cloud model, and the normal cloud generator is used to generate the WPI value evaluation cloud map and the single-factor WPI value cloud map, so as to visually see the pollution status of each single factor; combined with the weight, the comprehensive cloud algorithm is obtained WPI value cloud model, which is displayed intuitively in the form of cloud droplets, determines the comprehensive evaluation level of water quality, and effectively solves the problem that the water pollution index method does not consider the contribution of all pollution factors in the comprehensive water quality evaluation and it is difficult to realize the comparison between different sections.

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