Air pollutant concentration forecasting method and device and storage medium

A technology of air pollutants and pollutant concentration, applied in the direction of measurement devices, predictions, biological neural network models, etc., can solve the problems of generalization ability and forecast accuracy, and the inability to integrate and utilize the time and space dynamic characteristics of air pollutants , to achieve high generalization ability, improve efficiency and accuracy

Pending Publication Date: 2021-05-07
TSINGHUA UNIV
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Problems solved by technology

[0003] In some technologies, data modeling methods for air pollutant concentrations mainly include theoretical-based methods and statistical-based methods. These methods can predict the current or future air pollutant concentration based on historical air pollutant concentration monitoring data. , but none of them can integrate and utilize the temporal and spatial dynamic characteristics of air pollutants, and the generalization ability and forecast accuracy are average

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  • Air pollutant concentration forecasting method and device and storage medium
  • Air pollutant concentration forecasting method and device and storage medium
  • Air pollutant concentration forecasting method and device and storage medium

Examples

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example 1

[0099] The method for forecasting the concentration of air pollutants in the embodiment of the present application is described below with Example 1:

[0100] example one

[0101] First, select a target city and collect the air pollutant concentration data of the target city every hour from 0:00 on September 1, 2017 to 23:00 on March 31, 2018, including: PM10, PM2.5, O 3 , SO 2 , NO x etc., and meteorological data, including: temperature, humidity, wind speed, wind direction, atmospheric pressure, etc.; use the linear average of the first 20 and last 20 data points of the data missing point to fill in the value of the missing data point in time to supplement the missing value , organized into a data set.

[0102] Then according to the input time length t required for forecasting in =72h, output time length t out =24h, perform sliding window slice operation on the data set in the time dimension, so that the length of each data segment t=t in +t out =96h, and construct tr...

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Abstract

The invention discloses an air pollutant concentration forecasting method and device and a storage medium. The method comprises the following steps: constructing a training set, a verification set and a test set according to a data set, wherein the data set is obtained by collecting pollutant concentration data and meteorological data of a target area within a preset time length; constructing an adjacent matrix A of a graph structure according to spatial distribution of monitoring stations in a target area; establishing a neural network model F (x;theta|A), wherein x is input data of a neural network model and comprises pollutant concentration data and meteorological data in a set time period; training the neural network model by using data of a training set, adjusting a parameter theta of the neural network model by using data of a verification set and data of a test set, and obtaining a corrected neural network model; and forecasting the air pollutant concentration by using the corrected neural network model.

Description

technical field [0001] This article relates to but is not limited to air pollutant concentration forecasting technology, especially relates to a method, device and storage medium for air pollutant concentration forecasting. Background technique [0002] The method of monitoring through air quality monitoring stations is the most commonly used method for air quality perception and air pollution observation, which has the characteristics of high measurement accuracy and good stability. However, the spatial distribution of monitoring stations in my country is too sparse, and it is difficult to provide effective and accurate data for analysis and research. Therefore, in view of the current status of data acquisition, it is very important to adopt reasonable data analysis methods in order to effectively analyze air pollution particles. [0003] In some technologies, data modeling methods for air pollutant concentrations mainly include theoretical-based methods and statistical-ba...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/04G06N3/04G06Q50/26
CPCG06Q10/04G06Q50/26G06N3/04G01N33/0034G06M3/04G06F18/214G06F18/217
Inventor 黄高夏卓凡宋士吉
Owner TSINGHUA UNIV
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