CN108536950B - Sailing ship field water flow information display and query system - Google Patents
Sailing ship field water flow information display and query system Download PDFInfo
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Abstract
The invention discloses a sailing yard water flow information display and query system, which consists of an ocean current numerical simulation system and a water flow information display and query system; the ocean current numerical simulation system comprises an ocean circulation modeling module, an ocean current parameter setting module, a numerical simulation module and a harmonic analysis module; the water flow information display and query system comprises an electronic chart operation control module, a water flow data operation control module, a water flow visual playing control module, a chart information display mode control module, a chart color display control module and a chart primitive type display control module; the sailing boat field water flow information display and query system provided by the invention can intuitively and effectively predict and display the change rule of the sailing boat competition field water flow for athletes and coaches, provides the marine environment hydrodynamic model for predicting the water flow information of the sailing boat competition field, and provides a scientific reference basis for training and competition of sailing boat sports items.
Description
Technical Field
The invention relates to the fields of sports, nautics, oceanography and simulation science and technology, in particular to a sailing boat field water flow information display and query system.
Background
The overall or major course of a water sport is various forms of sporting events and activities that are carried out underwater, on the water, or on water. Water sports is a popular form of sports and is receiving increased attention, particularly for water sports such as sailboats, sailboards, racing boats and the like. Sailing is one of the water sports, and sailing games are games in which the athlete drives the sailing boat at a specified playing speed within a defined field.
The maritime competition environment is complex and changeable, sailing ships (sailboards) are influenced by environmental factors such as wind, tidal current, surge and wave when sailing on the sea, the current factor is one of important factors influencing the sailing speed and the sailing course of the sailing ships, and effective acquisition of the flow field information of the competition field is an important key factor for formulating a control strategy for the optimal sailing ship. An optimal navigation route is established based on the oceanographic weather information of the competition field, and the optimal navigation route is an important link for winning the competition. Ocean currents and waves are natural characteristics of the ocean, and how athletes generate larger advancing force by using the speed of water flow and the force of surge is very important for obtaining better performance by considering the influence of the water flow on competitions when planning routes. At present, a forecasting system for large-scale ocean wind power at home and abroad tends to be perfect, however, local fine flow field forecasting is not common, and an effective visualization platform is particularly lacked.
Disclosure of Invention
The invention aims to provide a sailing field water flow information display and query system, which can intuitively and effectively predict and display the change rule of sailing competition field water flow for athletes and coaches, provides a marine environment hydrodynamic model for predicting the water flow information of a sailing competition field, provides a sailing field water flow display and query system based on an electronic mapping technology, visually displays the data of the sailing field flow field, facilitates the athletes, the coaches and competition organizers to intuitively acquire the flow field dynamics of the sailing field, and provides a scientific reference basis for training and competition of sailing sport items.
The technical solution for realizing the purpose of the invention is as follows:
a sailing ship field water flow information display and query system is characterized by comprising an ocean current numerical simulation system and a water flow information display and query system, wherein the two subsystems are connected in a weak coupling mode through a database; the ocean current numerical simulation system comprises an ocean circulation modeling module, an ocean current parameter setting module, a numerical simulation module and a harmonic analysis module; the water flow information display and query system comprises an electronic chart operation control module, a water flow data operation control module, a water flow visual playing control module, a chart information display mode control module, a chart color display control module and a chart primitive type display control module;
the workflow of the ocean current numerical simulation system comprises the following steps:
(1) defining the extent of the simulated water area
Defining the position and the boundary of a water area, and collecting basic data about the water area to be simulated;
(2) establishing ocean circulation model
Considering all main influences on ocean circulation, and establishing a circulation model of ocean physics and thermal processes;
(3) determining fluid dynamics parameters
Determining fluid dynamic parameters of the established marine circulation model; specifying a digital grid, wind, water depth and tide;
(4) defining initial conditions and boundary conditions
Establishing and discussing boundary conditions and initial conditions; initial values required for all dependent variables at the start of the calculation are specified: water level, flow rate component, salinity and/or temperature; define open boundaries related to simulation driven: location, type, and all input data;
(5) calculating the behavior of ocean currents
Solving a marine model involving variable attributes and general boundary conditions using a numerical method to capture the behavior of ocean currents;
(6) harmonic analysis
And performing harmonic analysis on the simulated ocean current data and the measured data, if the data is consistent with the measured data, storing the simulated data in a database of the ocean current information display and query system, and otherwise, modifying the model or adjusting the initial condition or the boundary condition.
Preferably, the electronic chart operation control module includes an upward moving unit, a downward moving unit, a right moving unit, a left moving unit, an enlarging unit, and a reducing unit.
Preferably, the water flow data operation control module comprises a water flow file opening unit, a water flow static display unit, a water flow dynamic display unit, a water flow vector amplification display unit, a water flow vector reduction display unit, a competition area display unit and a single-point information query unit.
Preferably, the water flow visualization play control module comprises a date and time selection unit, a play speed control unit and a play progress unit.
Preferably, the chart information display mode control module comprises a basic display unit, a standard display unit, a complete display unit, a water depth point unit and a language unit.
Preferably, the chart color display control module comprises a burning sun background unit, a day background unit, a black day background unit, a dusk background unit and a night background unit.
Preferably, the chart primitive type display control module comprises a paper chart symbol unit, a simplified symbol unit, a symbolized boundary unit and a plane boundary unit.
A workflow method of a water flow information display and query system is characterized by comprising the following steps:
the first step is as follows: system start-up
The system is automatically connected with the electronic chart database, the flow field data and the tide database after being started;
the second step is that: loading chart
After the system is successfully connected with the electronic chart database, automatically loading electronic chart files in the electronic chart database; if the loading is unsuccessful, the database is reconnected, the change of the database is monitored, and the next step is carried out until the loading is successful;
the third step: sea chart display
Displaying the loaded chart file display window;
the fourth step: loading tidal flow and tidal files
After the system is successfully connected with the tidal current database and the tide database, automatically loading tidal current and tide files in the tidal current database and the tide database; if the loading is unsuccessful, the database is reconnected, the change of the database is monitored, and the next step is carried out until the loading is successful;
the fifth step: flow field, tide, flow field file display
Superposing the loaded flow field data, tide data and file information on the electronic chart for displaying;
and a sixth step: setting changes
The system automatically detects the setting change information about the aspects of chart display and operation, flow field, tide display and operation, updates the display mode and refreshes a view window after detecting that the change exists;
the seventh step: query
The system automatically detects the inquiry of detailed information about the flow field at the designated position, responds to the inquiry operation and displays the inquired information.
Compared with the prior art, the invention has the following remarkable advantages:
the sailing yard water flow information display and query system provided by the invention can intuitively and effectively predict and display the change rule of the sailing competition yard water flow for athletes and coaches, provides a marine environment hydrodynamic model for predicting the water flow information of the sailing competition yard, provides the sailing yard water flow display and query system based on the electronic open chart technology, visually displays the data of the sailing yard flow field, facilitates the athletes, the coaches and competition organizers to intuitively acquire the flow field dynamics of the sailing yard, and provides a scientific reference basis for the training and competition of sailing sport items.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a water flow information display and query system for a sailing ship yard according to the present invention.
Fig. 2 is a flow chart of the ocean current numerical simulation system according to the present invention.
Fig. 3 is a flow chart of the operation of the water flow information display and query system according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
as shown in fig. 1, a sailing yard water flow information display and query system is composed of an ocean current numerical simulation system and a water flow information display and query system, wherein the two subsystems are connected in a weak coupling mode through a database; the ocean current numerical simulation system comprises an ocean circulation modeling module, an ocean current parameter setting module, a numerical simulation module and a harmonic analysis module; the water flow information display and query system comprises an electronic chart operation control module, a water flow data operation control module, a water flow visual playing control module, a chart information display mode control module, a chart color display control module and a chart primitive type display control module; the ocean current numerical simulation system is specially responsible for simulating ocean currents in a designated area and providing data support for ocean current information display and query, and the ocean current information display and query system is responsible for synchronous visual display of ocean current data, electronic sea charts and tide data, and provides dynamic display of environmental information of a competition field area for a user through a friendly human-computer interaction interface.
As shown in fig. 2, the workflow of the ocean current numerical simulation system includes the following steps:
(1) defining the extent of the simulated water area
Defining the position and the boundary of a water area, and collecting basic data about the water area to be simulated;
(2) establishing ocean circulation model
Considering all main influences on ocean circulation, and establishing a circulation model of ocean physics and thermal processes;
(3) determining fluid dynamics parameters
Determining fluid dynamic parameters of the established marine circulation model; specifying a digital grid, wind, water depth and tide;
(4) defining initial conditions and boundary conditions
Establishing and discussing boundary conditions and initial conditions; initial values required for all dependent variables at the start of the calculation are specified: water level, flow rate component, salinity and/or temperature; define open boundaries related to simulation driven: location, type, and all input data;
(5) calculating the behavior of ocean currents
Solving a marine model involving variable attributes and general boundary conditions using a numerical method to capture the behavior of ocean currents;
(6) harmonic analysis
And performing harmonic analysis on the simulated ocean current data and the measured data, if the data is consistent with the measured data, storing the simulated data in a database of the ocean current information display and query system, and otherwise, modifying the model or adjusting the initial condition or the boundary condition.
The electronic chart operation control module comprises an upward moving unit, a downward moving unit, a right moving unit, a left moving unit, an amplifying unit and a reducing unit.
The water flow data operation control module comprises a water flow file opening unit, a water flow static display unit, a water flow dynamic display unit, a water flow vector amplifying display unit, a water flow vector reducing display unit, a competition area display unit and a single-point information inquiry unit.
The water flow visualization playing control module comprises a date and time selection unit, a playing speed control unit and a playing progress unit.
The chart information display mode control module comprises a basic display unit, a standard display unit, a complete display unit, a water depth point unit and a language unit.
The chart color display control module comprises a burning sun background unit, a daytime background unit, a dark day background unit, a dusk background unit and a night background unit.
The chart primitive type display control module comprises a paper chart symbol unit, a simplified symbol unit, a symbolized boundary unit and a plane boundary unit.
As shown in fig. 3, a workflow method of a water flow information display and query system includes the following steps:
the first step is as follows: system start-up
The system is automatically connected with the electronic chart database, the flow field data and the tide database after being started;
the second step is that: loading chart
After the system is successfully connected with the electronic chart database, automatically loading electronic chart files in the electronic chart database; if the loading is unsuccessful, the database is reconnected, the change of the database is monitored, and the next step is carried out until the loading is successful;
the third step: sea chart display
Displaying the loaded chart file display window;
the fourth step: loading tidal flow and tidal files
After the system is successfully connected with the tidal current database and the tide database, automatically loading tidal current and tide files in the tidal current database and the tide database; if the loading is unsuccessful, the database is reconnected, the change of the database is monitored, and the next step is carried out until the loading is successful;
the fifth step: flow field, tide, flow field file display
Superposing the loaded flow field data, tide data and file information on the electronic chart for displaying;
and a sixth step: setting changes
The system automatically detects the setting change information about the aspects of chart display and operation, flow field, tide display and operation, updates the display mode and refreshes a view window after detecting that the change exists;
the seventh step: query
The system automatically detects the inquiry of detailed information about the flow field at the designated position, responds to the inquiry operation and displays the inquired information.
The sailing ship site water flow information display and query system is developed and realized based on Visual Studio, and has the following characteristics:
(1) has high ocean current data space resolution and can well show the current distribution of a competition area
(2) Has high time resolution (updated in less than 10 minutes) and can well display the ocean current change rule of each competition area
(3) The tide is synchronously displayed, and convenience is provided for athletes to memorize and understand the relation between the tidal current change and the tide change;
(4) providing information inquiry for ocean current of any place.
(5) Providing an adjustable date/time function, ocean currents can be learned in advance in the next few days.
(6) The water flow display is based on an electronic chart system according to the IHO standard.
(7) Convenient display adjustment and progress adjustment.
(8) Convenient operation and inquiry function, and friendly human-computer interface design.
In conclusion, the sailing yard water flow information display and query system provided by the invention can intuitively and effectively predict and display the change rule of the sailing competition yard water flow for athletes and coaches, provides a marine environment hydrodynamic model for predicting the water flow information of the sailing competition yard, provides a sailing yard water flow display and query system based on an electronic mapping technology, visually displays the data of the sailing yard flow field, facilitates the athletes, the coaches and competition organizers to intuitively acquire the sailing yard flow field dynamics, provides a scientific reference basis for training and competition of sailing sports items, wins the athletes and gives high praise to the coaches.
The foregoing shows and describes the general principles and features of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
From the foregoing, it will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (8)
1. A sailing ship field water flow information display and query system is characterized by comprising an ocean current numerical simulation system and a water flow information display and query system, wherein the two subsystems are connected in a weak coupling mode through a database; the ocean current numerical simulation system comprises an ocean circulation modeling module, an ocean current parameter setting module, a numerical simulation module and a harmonic analysis module; the water flow information display and query system comprises an electronic chart operation control module, a water flow data operation control module, a water flow visual playing control module, a chart information display mode control module, a chart color display control module and a chart primitive type display control module;
the workflow of the ocean current numerical simulation system comprises the following steps:
(1) defining the extent of the simulated water area
Defining the position and the boundary of a water area, and collecting basic data about the water area to be simulated;
(2) establishing ocean circulation model
Considering all main influences on ocean circulation, and establishing a circulation model of ocean physics and thermal processes;
(3) determining fluid dynamics parameters
Determining fluid dynamic parameters of the established marine circulation model; specifying a digital grid, wind, water depth and tide;
(4) defining initial conditions and boundary conditions
Establishing and discussing boundary conditions and initial conditions; initial values required for all dependent variables at the start of the calculation are specified: water level, flow rate component, salinity and/or temperature; define open boundaries related to simulation driven: location, type, and all input data;
(5) calculating the behavior of ocean currents
Solving a marine model involving variable attributes and general boundary conditions using a numerical method to capture the behavior of ocean currents;
(6) harmonic analysis
And performing harmonic analysis on the simulated ocean current data and the measured data, if the data is consistent with the measured data, storing the simulated data in a database of the ocean current information display and query system, and otherwise, modifying the model or adjusting the initial condition or the boundary condition.
2. The sailboat yard water flow information display and retrieval system of claim 1, wherein the electronic chart operation control module includes an up-shift unit, a down-shift unit, a right-shift unit, a left-shift unit, an enlargement unit, and a reduction unit.
3. The sailboat yard water flow information display and query system of claim 1, wherein the water flow data operation control module includes a water flow file opening unit, a water flow static display unit, a water flow dynamic display unit, a water flow vector enlargement display unit, a water flow vector reduction display unit, a competition area display unit, and a single point information query unit.
4. The sailboat yard water flow information display and query system of claim 1, wherein the water flow visualization play control module includes a date and time selection unit, a play speed control unit, and a play progress unit.
5. The sailboat yard water flow information display and query system of claim 1, wherein the chart information display mode control module includes a basic display unit, a standard display unit, a full display unit, a water depth point unit, and a language unit.
6. The sailboat yard water flow information display and retrieval system of claim 1, wherein the chart color display control module includes a burning sun background unit, a day background unit, a dark day background unit, a dusk background unit, and a night background unit.
7. The sailboat yard water flow information display and retrieval system of claim 1, wherein the chart primitive type display control module includes a paper chart symbol unit, a simplified symbol unit, a symbolized boundary unit, and a planar boundary unit.
8. The workflow method of the water flow information display and query system according to claim 1, comprising the steps of:
the first step is as follows: system start-up
The system is automatically connected with the electronic chart database, the flow field data and the tide database after being started;
the second step is that: loading chart
After the system is successfully connected with the electronic chart database, automatically loading electronic chart files in the electronic chart database; if the loading is unsuccessful, the database is reconnected, the change of the database is monitored, and the next step is carried out until the loading is successful;
the third step: sea chart display
Displaying the loaded chart file display window;
the fourth step: loading tidal flow and tidal files
After the system is successfully connected with the tidal current database and the tide database, automatically loading tidal current and tide files in the tidal current database and the tide database; if the loading is unsuccessful, the database is reconnected, the change of the database is monitored, and the next step is carried out until the loading is successful;
the fifth step: flow field, tide, flow field file display
Superposing the loaded flow field data, tide data and file information on the electronic chart for displaying;
and a sixth step: setting changes
The system automatically detects the setting change information about the aspects of chart display and operation, flow field, tide display and operation, updates the display mode and refreshes a view window after detecting that the change exists;
the seventh step: query
The system automatically detects the inquiry of detailed information about the flow field at the designated position, responds to the inquiry operation and displays the inquired information.
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| CN103337153A (en) * | 2013-07-11 | 2013-10-02 | 中国海洋大学 | Virtual sailboat motion simulation system |
| CN105241457A (en) * | 2015-08-10 | 2016-01-13 | 武汉理工大学 | Establishing method of three-dimensional aided navigation system for ship handling |
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