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Channel underwater topographic change analysis system and method

A technology for underwater terrain and change analysis, applied in the field of waterway engineering, can solve the problems of low reusability, high application threshold, and low real-time performance, and achieve the effect of strong reusability, high real-time performance, and lower application threshold

Active Publication Date: 2019-09-03
长江南京航道局
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] The purpose of the present invention is to solve the defects of high application threshold, low real-time performance and poor reusability of existing channel underwater terrain change analysis methods, and provide a Channel underwater terrain change analysis system and method

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  • Channel underwater topographic change analysis system and method

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Embodiment 1

[0054] This embodiment discloses a channel underwater terrain change analysis system, which is characterized in that the system includes a water depth preprocessing module 1, an underwater elevation model processing module 2, a data retrieval module 3, a thematic product production module 4, and a thematic map drawing module 5 , Service Publishing Module 6, see the system frame diagram figure 1 .

[0055] (1) Water depth pretreatment module 1

[0056] The water depth preprocessing module 1 is used for preprocessing the original waterway bathymetric map files input by the user into the system, and the preprocessing results are transmitted to the underwater elevation model processing module 2 for further processing. The water depth preprocessing module 1 includes a water depth information extraction component 11 , a mathematical basis conversion component 12 and a metadata collection component 13 .

[0057] 1. Water depth information extraction component 11

[0058]...

Embodiment 2

[0100] The embodiment discloses a channel underwater terrain change analysis method, which is implemented based on the channel underwater terrain change analysis system disclosed in Embodiment 1, and specifically includes the following steps:

[0101] S1. The user inputs the dwg or edb format files of channel underwater topographic survey maps of different survey times into the water depth preprocessing module. The preprocessing module automatically extracts all the sounding point information in the survey map, including coordinates and sounding values; automatically converts the geographic coordinates of the sounding points into CGCS2000, and unifies the sounding reference as a navigation datum; automatically extracts the map name, number, measurement Metadata information such as date, measurement unit, time measurement water level, water channel to which it belongs, and measurement scale.

[0102] S2. Enter the underwater elevation model processing module. The user se...

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Abstract

The invention discloses a channel underwater topography change analysis system and method. The system comprises a water depth preprocessing module, an underwater elevation model processing module, a data retrieval module, a special product production module, a special map drawing module and a service release module. The water depth preprocessing module is used for preprocessing an original channelwater depth map file of a user input system and comprises a water depth information extraction module, a mathematical basic conversion module and a metadata acquisition module. The special product production module is used for producing a channel underwater topographic change analysis special product and comprises a scouring and silting analysis assembly and a dynamic evolution visual analysis assembly. The problems of high application threshold, low real-time performance and low reusability of an existing channel underwater topography change analysis method are solved, and the channel underwater topography change analysis system has the advantages of high automation degree, low application threshold, high data reusability and the like.

Description

technical field [0001] The invention relates to the field of waterway engineering, in particular to a system and method for analyzing underwater terrain changes of a waterway. Background technique [0002] The analysis of channel underwater terrain changes plays an important role in engineering fields such as channel maintenance, channel regulation, and channel dredging. Dynamic tracking of changes in channel underwater terrain is the basic means for channel maintenance and navigation mark distribution; in-depth analysis of the evolution trend of channel underwater terrain over the years is an important basis for evaluating the effect of channel improvement projects; quantitative calculation of underwater sediment before and after channel dredging The amount of sand scoured and deposited is an important indicator for inspecting channel dredging projects. [0003] Traditional channel underwater terrain change analysis is generally carried out by professional scientific resea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/20Y02A90/30
Inventor 郑毅夏辉宇李昱施勤王宇潘晓峰曹玮刘杰史卿奚凌云
Owner 长江南京航道局