Method for analyzing environmental quality data by utilizing characteristic radar map
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
An environmental quality and radar technology, applied in image data processing, 2D image generation, complex mathematical operations, etc., can solve the problem of not being able to see the time series or spatial differences of pollution characteristics, and achieve the effect of rapid cause analysis and display
Active Publication Date: 2018-11-16
CHINESE RES ACAD OF ENVIRONMENTAL SCI +1
View PDF6 Cites 6 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
[0003] The existing analysis method for monitoring data is to use the concentration change or the simple ratio method to analyze the pollution characteristics. Due to the change of the concentration of pollutants and the numerical value of the concentration of different po
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0052] In this embodiment, the urban air quality of Cangzhou City in 2014 is taken as an example, and the characteristic radar map is used for data analysis. The air quality monitoring data includes PM 2.5 , SO 2 , NO 2 , CO, coarse particles, NO daily average.
[0053] (1) First, normalize the data monitored every day, and PM 2.5 , SO 2 , NO 2 The daily average value of , CO, coarse particles, and NO is converted into a percentage in proportion to form a pollution characteristic component spectrum;
[0054] Its calculation formula is:
[0055]
[0056] Z ij is the normalized value of the jth pollutant at time i;
[0057] Cij is the original concentration of the jth pollutant at time i;
[0058] i is different time;
[0059] j is different pollutants;
[0060] (2) Calculation of PM in the whole year of 2014 2.5 , SO 2 , NO 2 , CO, coarse particle, NO standard value, upper limit, lower limit,
[0061] Among them, the calculation formula of the standard value i...
Embodiment 2
[0094] The five pollutants (coarse particles, SO 2 , NO 2 , CO, PM 2.5 ), and use the radar map to reflect the daily air pollution characteristics, and get image 3 .
[0095] From image 3 It can be seen that Beijing showed typical fireworks emission pollution characteristics (PM 2.5 and SO 2 relatively high proportion); then (from the second day to the fourth day of the junior high school), PM 2.5 While still high, SO 2 gradually decreased, while CO increased, indicating that the impact of fireworks pollution gradually decreased after the second day of junior high school. Another notable feature during this pollution process was coarse particulate matter and NO 2 The relative proportions of all have decreased, indicating that during the Spring Festival, the amount of construction, freight and other activities decreased, reducing the impact of dust and motor vehicle emissions.
Embodiment 3
[0097] The same calculation method as in Example 1 was used to analyze the five pollutants (coarse particles, SO 2 , NO 2 , CO, PM 2.5 ), and use radar maps to reflect the air pollution characteristics of different cities on that day, and classify the pollution types of each city.
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
PUM
Login to view more
Abstract
The invention discloses a method for analyzing environmental quality data by utilizing a characteristic radar map. The method mainly comprises the four steps of: (1), performing data normalization, and eliminating the dimension of the pollutant concentration; (2), drawing the base map of the characteristic radar map, wherein the base map of the characteristic radar map comprises three polygonal lines; the first line is a regular polygon; the numerical value of the first line is 1; the second line is a non-specific polygon; the numerical value of the second line is greater than 1; the third line is a non-specific polygon; and the numerical value of the third line is less than 1; (3), drawing the characteristic radar map according to the ratio of the pollution characteristic component spectrum at a specific time or in a specific site to the average pollution characteristic component spectrum within a certain period or in a certain area; and (4), superposing the characteristic radar map on the base map of the characteristic radar map, so that a complete map is formed. According to the method disclosed by the invention, due to comparison of the difference between the pollution characteristics at the specific time and the average pollution characteristics within a certain period or the difference between the pollution characteristics in the specific site and the average pollution characteristics in the area, cause analysis and display can be carried out intuitionally and rapidly in the manner of drawing the characteristic radar map.
Description
technical field [0001] The invention belongs to the field of environmental quality analysis and monitoring, and specifically relates to a method for analyzing air, soil and water quality data by using characteristic radar images. Background technique [0002] Environmental quality monitoring is a kind of environmental monitoring content. It mainly monitors the distribution and concentration of pollutants in the environment to determine the status of environmental quality. Through regular and fixed-point environmental quality monitoring historical data, it can provide necessary information for environmental quality assessment and environmental impact assessment. It also provides important basic data for scientific research on the laws of pollutant migration and transformation. [0003] The existing analysis method for monitoring data is to use the concentration change or the simple ratio method to analyze the pollution characteristics. Due to the change of the concentration o...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to view more 
Login to view more