Monitoring sampling point layout method and device

A technology of sampling points and target areas, applied in the field of geographic information, can solve problems affecting the expression ability of observation results, and achieve the effect of ensuring representativeness and good sampling results

Active Publication Date: 2022-05-10
BEIJING NORMAL UNIVERSITY
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] However, different sampling methods generate different sample subsets with different representativeness, which directly affect the ability of the observation results to express the real phenomenon.

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  • Monitoring sampling point layout method and device
  • Monitoring sampling point layout method and device

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Embodiment Construction

[0041] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions in the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. Obviously, the described embodiments are part of the embodiments of the present invention , but not all examples. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0042] It should be noted that, in the description of the embodiments of the present invention, the terms "comprising", "comprising" or any other variant thereof are intended to cover a non-exclusive inclusion, so that a process, method, article or device comprising a series of elements Not only those elements are included, but also other elements not expressly listed or inherent in such proc...

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Abstract

The invention provides a monitoring sampling point layout method and device. The method comprises the following steps: constructing a multi-dimensional attribute space objective function and a geographic space objective function of a target area; constructing a total objective function according to the multi-dimensional attribute space objective function and the geographic space objective function; and determining monitoring sampling points in the target area according to the total target function. According to the monitoring sampling point layout method and device provided by the invention, for constructing a cultivated land quality monitoring network, monitoring points are extracted from two dimensions of attributes and space by virtue of geographic element multi-dimensional attribute characteristics and spatial partition of a research range; the representativeness of a sample point attribute space and the stability of a geographic space are simultaneously met as far as possible under limited monitoring points, so that the effective representativeness of the distributed monitoring sample points to the global situation is ensured, and a better sampling result can be obtained.

Description

technical field [0001] The invention relates to the technical field of geographic information, in particular to a method and device for laying out monitoring sample points. Background technique [0002] As a country with a large population in the world, the amount of cultivated land in China is limited, and its food security has long been widely concerned by many scholars and research institutions around the world. Monitoring changes in the quality of cultivated land and analyzing key issues that endanger the quality of cultivated land in different regions are crucial to exploring sustainable ways of using cultivated land. , It is of great significance to maintain national food security and ecological security. [0003] The existing spatial sampling theory and method, through arranging a small number of observation sample points in the study area, to obtain the characteristics of the global cultivated land quality change. [0004] However, different sampling methods generat...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F16/29G06N3/00G06Q10/06G06Q50/02
CPCG06F16/29G06Q10/06393G06Q10/06395G06Q50/02G06N3/006
Inventor 叶思菁万昌君任书义王匡序刘晨钰
Owner BEIJING NORMAL UNIVERSITY
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