Unlock instant, AI-driven research and patent intelligence for your innovation.

A Calculation and Mapping Method of Silt Thickness in Waterfront Zone Based on Kriging Interpolation

A kriging interpolation and silt technology, applied in the directions of sound wave re-radiation, design optimization/simulation, CAD numerical modeling, etc., can solve problems such as high equipment requirements and lack of operating experience, achieve high precision and efficiency, and improve The effect of work efficiency and work accuracy

Active Publication Date: 2021-12-14
NANJING FORESTRY UNIV
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the use of surveying and mapping unmanned ships to study the thickness of silt, due to the high requirements for equipment, currently lacks practical operational experience in the work

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
  • A Calculation and Mapping Method of Silt Thickness in Waterfront Zone Based on Kriging Interpolation
  • A Calculation and Mapping Method of Silt Thickness in Waterfront Zone Based on Kriging Interpolation
  • A Calculation and Mapping Method of Silt Thickness in Waterfront Zone Based on Kriging Interpolation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] A Kriging interpolation-based method for calculating and drawing silt thickness in the waterfront zone, the flow chart is as follows figure 1 As shown in , the specific steps are as follows:

[0043] 1) Measure the mud sample point data and generate CAD data.

[0044] Use the shore-end server to survey and map the unmanned ship to set the route and target point. Determine the starting point and ending point of the river channel, and then set the time interval of unmanned ship measurement to 1 time / second, and the sampling route adopts a zigzag sampling route. Input the preset route into the control system, so that the unmanned ship can automatically cruise and measure data. The measured data is saved in the DXF format of the CAD software.

[0045] 2) Convert CAD data into shp point format data.

[0046]The shp format is an abbreviation of the shapefile format, which is developed by ESRI. A shp file includes a main file, an index file, and a dBASE table. The reason f...

Embodiment 2

[0075] Taking the Shuiximen River Section of Nanjing City, Jiangsu Province as an example, the method of Embodiment 1 is used for on-the-spot measurement. The computer hardware used in this embodiment is mainly: the CPU is an i5 processor, the memory is 8GB, and the hard disk is a solid state disk. The software used is: the operating system is windows 7 professional edition system, and the ArcGIS software is version 9.3.1.

[0076] (1) Firstly, convert the format of the collected point data. In order to use the kriging interpolation algorithm in ArcGIS software, the original format needs to be converted into shapefile format data. The data format directly measured by the surveying and mapping unmanned ship is the DXF format of CAD. After opening it with ArcGIS software, select "*.dxf Point", right-click, select Data in the pop-up window, and then Export Data, you can export It converts to shapefile format.

[0077] (2) The second is to construct kriging regular grid raster d...

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 discloses a Kriging interpolation-based method for calculating the thickness of silt in the waterfront zone and drawing a map: firstly, the ship-borne RTK and sonar are used to collect point data; then, ordinary Kriging is performed on high-frequency and low-frequency point data respectively Grid interpolation to form regular grid data in two frequency bands; finally, combined with fixed parameter settings such as pole height, the data of the silt top and silt bottom are calculated to obtain the silt thickness, and ArcGIS is used for grid calculation to obtain a spatial silt thickness map. The Kriging interpolation-based silt thickness calculation and mapping method in the waterfront zone of the present invention applies the unmanned boat to the silt thickness surveying and mapping of river channels, which can improve the working efficiency and accuracy of surveying and mapping. Through the field test and map verification of Nanjing Shuiximen River Section, this method has high accuracy and efficiency, can complete the accurate determination of river bottom silt in typical waterfront zones, and can provide technology for soil research in waterfront zones support.

Description

technical field [0001] The invention belongs to the technical field of measuring silt thickness, and in particular relates to a Kriging interpolation-based calculation and drawing method for silt thickness in a waterfront zone. Background technique [0002] The lakeside waterfront zone is one of the ecological interlaced types between terrestrial ecosystems and aquatic ecosystems, with high productivity and significant ecological edge effects. The river bottom soil in the lakeside waterfront zone has been in an anaerobic and aerobic environment for a long time, and organic matter is strongly accumulated and decomposed slowly, so the organic matter is rich. Determination of the thickness of river bottom silt in the waterfront zone has important reference significance for the study of soil characteristics in the waterfront zone and the sampling and extraction of active organic carbon. In the original silt thickness measurement method, under normal circumstances, the operator ...

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
Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/20G01S15/02G01S15/08G01S19/43G01S19/45
CPCG01S15/08G01S19/43G01S19/45G01S15/86G06F2111/10G06F30/20
Inventor 许子乾蒋圣羌鑫林钱程扬曹林阮宏华
Owner NANJING FORESTRY UNIV