Method and system for rapid three-dimensional display of water-polluted environment

A display method and technology for water pollution, applied in general water supply conservation, instrumentation, other database browsing/visualization, etc., can solve problems such as BSP tree structure optimization, and achieve the effect of fast construction, clear structure, and conducive to object search

Active Publication Date: 2019-06-28
NANJING UNIV OF POSTS & TELECOMM
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Problems solved by technology

However, the current viewshed culling does not target the nodes in the water environment 3D scene, nor does it use the BSP tree structure to optimize the water environment 3D scene
[0005] Due to the particularity of 3D drawing of water environment, there is currently no public fast drawing method specifically for 3D graphics of water pollution environment, using BSP tree structure, comprehensive use of technologies such as viewshed culling, case-based reasoning selection, etc. To meet the needs of quickly displaying 3D graphics of the water environment

Method used

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  • Method and system for rapid three-dimensional display of water-polluted environment
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  • Method and system for rapid three-dimensional display of water-polluted environment

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Embodiment Construction

[0057] The invention will be described in further detail below in conjunction with the accompanying drawings.

[0058] The present invention proposes a three-dimensional rapid display method and system for water-polluted environment, and uses MFC and OpenGL to realize functions such as preprocessing and rendering of the water-polluted environment.

[0059] like figure 1 As shown, the present invention proposes a three-dimensional rapid display method of water pollution environment, the method includes a preprocessing step: the water area is divided into blocks, and a BSP scene tree is constructed according to the divided scene structure, such as figure 2 shown; for the water area where each sensor is located, a case library is constructed according to the national five-category water quality standards, such as Figure 4 Shown; store the information sensed by the sensor in the database. Rendering step: use viewshed culling technology; determine the water quality level accord...

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Abstract

The invention discloses a three-dimensional rapid display method and system for water polluted environments. In the method, a corresponding sensor is responsible for sensing information for each water area, and the data is sent back at regular intervals, and the information sensed by the sensor is stored in a database; according to five categories The national water quality standard builds a case library; divides the three-dimensional scene of the water environment, takes the water object node as the organizational unit, and constructs a scene tree based on the BSP tree structure; performs visual domain elimination based on the bounding box level of the scene tree; Judging the water quality level; looking for the corresponding case in the case library according to the judgment result, displaying the water quality graph; checking the water quality information by clicking. The invention solves the problem that experts do not need to go to the scene to investigate the water quality, and quickly display the three-dimensional graphics of the water pollution environment in real time, and can automatically select the corresponding water quality graphics, so that the experts can roam and observe in the three-dimensional scene of the water environment and check the real-time information of the current water area, which is convenient for the experts to understand the water quality. Research on polluted environment.

Description

technical field [0001] The invention relates to the technical field of sensor perception information and three-dimensional visualization, in particular to a method and system for rapidly rendering a three-dimensional scene of a water-polluted environment. Background technique [0002] In the process of studying the pollution of the water environment, researchers usually conduct field sampling observations on the water environment. During the sampling process, the polluted water environment may pose a hazard to the health of researchers. At the same time, the period from on-site sampling to laboratory analysis is long, and the results obtained by the laboratory cannot represent the real-time water quality. Therefore, using sensors to monitor water quality and transmitting the monitoring data back to the control center is beneficial for experts to conduct real-time research on the water environment. However, using sensors to monitor water quality generates large amounts of da...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F16/9038G06F16/904G06T17/00
CPCG06F16/9038G06F16/904G06T17/00Y02A20/152
Inventor 周剑马晨昊刘林峰汪云云叶晓国吴家皋郭剑
Owner NANJING UNIV OF POSTS & TELECOMM
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