High-frequency space adaptive threshold fire remote sensing monitoring method based on GK-2A

A GK-2A, self-adaptive threshold technology, applied in the direction of radiation pyrometry, measuring device, temperature recording method, etc., can solve the problems of single data source, monitoring method accuracy to be improved, etc., to achieve improved accuracy, remote sensing fire The effect of improving the operationalization of intelligence monitoring

Pending Publication Date: 2022-06-24
XIAN XINGTUZHIHUA DIGITAL TECH CO LTD
View PDF0 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to focus on solving the problems of a single high-temporal-spatial-resolution data source for fire remote sensing monitoring and the need to improve the accuracy of existing monitoring methods, and provide a high-frequency space ad

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
  • High-frequency space adaptive threshold fire remote sensing monitoring method based on GK-2A
  • High-frequency space adaptive threshold fire remote sensing monitoring method based on GK-2A
  • High-frequency space adaptive threshold fire remote sensing monitoring method based on GK-2A

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0051] Taking the fire situation identification and monitoring process in Liangshan Yi Autonomous Prefecture, Sichuan Province at 13:00 on January 26, 2022 as an example, the specific implementation of the present invention will be further explained in conjunction with the description and implementation of the accompanying drawings:

[0052] 1. GK2A data preprocessing in fire monitoring area: GK-2A data projection conversion, radiation correction, atmospheric correction, etc.

[0053] 1.1 Use the zenith angle and azimuth angle of the satellite and the sun to correct the reflectivity of visible light and near-infrared and the brightness temperature of thermal infrared radiation for radiation correction. 0.51μm), 3 (0.64μm), 4 (0.85μm), 6 (1.61μm), 7 (3.83μm), 14 (11.21μm) and 15 (12.36μm) channels;

[0054] 1.2 Use the 6S radiative transfer model to do atmospheric correction for the thermal infrared channel data, corresponding to the 4th, 6th, 7th, 14th and 15th channels in the...

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

No PUM Login to view more

Abstract

The invention aims to mainly solve the problems that a fire remote sensing monitoring high-temporal-spatial-resolution data source is single, the accuracy of an existing monitoring method needs to be improved and the like, and provides a high-frequency spatial self-adaptive threshold high-precision fire remote sensing recognition monitoring method based on brand-new geostationary meteorological satellite GK-2A data. The fire monitoring channel is expanded, and the fire monitoring accuracy is improved. The method mainly comprises the steps of data preprocessing (GK-2A satellite data projection conversion, radiation correction, atmospheric correction and the like); marking clear sky pixels (identifying pixels in a cloud region, a water body region, a desert region and the like to mark the clear sky pixels); effective background pixel screening (dynamic screening based on underlying surface type differentiation); background pixel brightness temperature calculation; fire point pixel dynamic threshold value identification (correction coefficient self-adaptive dynamic processing based on the solar altitude and the vegetation proportion, and standard deviation self-adaptive correction based on the cloud pixel proportion); and false fire point elimination. According to the method, the channel of remote sensing fire monitoring is greatly expanded, and the accuracy of remote sensing fire monitoring is improved.

Description

technical field [0001] The invention relates to the technical field of remote sensing fire monitoring, in particular to a high-frequency space adaptive threshold fire remote sensing identification monitoring method based on GK-2A satellite data. Background technique [0002] Fire is an important factor affecting the environment and carbon cycle of terrestrial ecosystems. It changes the carbon source / sink pattern of the entire system, affects global climate change, and also seriously endangers the safety of people's lives and properties. Satellite remote sensing has become an important means of current fire monitoring. In recent years, many domestic and foreign scholars have carried out fire identification and monitoring based on many satellite data such as Terra / MODIS, Aqua / MODIS, NOAA / AVHRR, Himawari-8, and FY-3. Research; Among them, Himawari-8 satellite data is widely used in fire monitoring business due to its high temporal and spatial resolution and high data quality ad...

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
no application Login to view more
IPC IPC(8): G06V20/13G06V20/10G06V20/52G01J5/48G01J5/90
CPCG01J5/0018G01J2005/0077
Inventor 胡贵锋赵宏辉黄超
Owner XIAN XINGTUZHIHUA DIGITAL TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap