Navigation environment visualization representation method for ship visual navigation

A navigation environment and ship technology, applied in the field of visual representation of navigation environment oriented to ship visual navigation, can solve the problems of reduced decision-making efficiency, difficulty in fusion, serious heterogeneity of navigation decision-making information, etc., to improve accuracy and efficiency, and unify Expressed effect

Inactive Publication Date: 2015-12-16
WUHAN UNIV OF TECH
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AI Technical Summary

Problems solved by technology

The scattered information representation of the navigation environment makes the information heterogeneity phenomenon required for navigation decision-making serious, fusion difficult, and decision-making efficiency reduced.

Method used

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  • Navigation environment visualization representation method for ship visual navigation
  • Navigation environment visualization representation method for ship visual navigation

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Embodiment Construction

[0024] The present invention will be further described below in conjunction with specific examples and accompanying drawings.

[0025] In order to meet the needs of ship navigation decision-making for efficient organization and management of navigation environment data and high-performance multi-dimensional visual analysis, it is first necessary to establish an integrated representation of the geometric model, physical model and process model of the ship's complex navigation environment elements, and organically integrate multi-source heterogeneous information into Within a unified space-time framework, and provide efficient and accurate space-time analysis, its conceptual model such as figure 1 shown.

[0026] Under the unified space-time framework, the representation model of the navigable environment is an information model that can be calculated, reasoned and holographically perceived. From figure 1 It can be seen that the complex navigation environment representation mo...

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Abstract

The invention provides a navigation environment visualization representation method for ship visual navigation. The method includes the following steps that: a geometric layer is constructed, wherein the geometric layer includes a geometric model of navigation environment and thematic elements, initial positions and statuses, ship dynamic data and movement navigation point position information; a physical layer is constructed, wherein the physical layer is used for representing the physical characteristics of the thematic elements in the navigation environment and laws of physics which the thematic elements should follow in the navigation environment; a temporal layer is constructed, wherein the temporal layer concludes the temporal characteristics of the navigation environment and thematic elements to states and processes and specifies a researched time domain as a continuous model based on time density; and a semantic layer is constructed, wherein the semantic layer includes topic semantic, space semantic and process semantic and reflects the physical natures of the dynamic change processes of the navigation environment elements and the influences of the navigation environment elements on ship visual navigation. With the method of the invention adopted, the navigation environment and thematic elements can be integrated under a unified time-space frame, and centralized and unified representation of navigable environment information can be realized, and the accuracy and efficiency of visual time-space analysis can be improved.

Description

technical field [0001] The invention belongs to the field of ship navigation, in particular to a navigation environment visualization method for ship visual navigation. Background technique [0002] Ship visual navigation is a new navigation method that organically combines comprehensive vision, navigation and water traffic management technologies. It needs to comprehensively consider the complex navigation environment, integrate real-time ship navigation sensor data and environmental sensor data, and realize accurate environmental information in the terminal area. Unified expression. The environmental elements that affect visual navigation include terrain features, hydrological conditions, navigation aids, and dangerous targets. These environmental elements have different physical properties, and their spatial and temporal scales have large spans and affect each other. To avoid various dangers, it is necessary to thoroughly perceive the surrounding environment of the ship....

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G3/00
Inventor 汪洋魏晓阳严新平刘立群王乐
Owner WUHAN UNIV OF TECH
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