CN104821103A - Ship sailing safety assessment system - Google Patents
Ship sailing safety assessment system Download PDFInfo
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- CN104821103A CN104821103A CN201510260639.8A CN201510260639A CN104821103A CN 104821103 A CN104821103 A CN 104821103A CN 201510260639 A CN201510260639 A CN 201510260639A CN 104821103 A CN104821103 A CN 104821103A
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Abstract
The invention discloses a ship sailing safety assessment system, which comprises a main frame, a shipping line design module, a ship motion math model module, a ship dynamic parameter acquisition module, a scoring module and a historical record and replay module. Computer simulation technology is adopted, and an automatic ship sailing safety assessment and simulation system which can provide similar marine situations is developed. Different ship types and different wind current conditions can be set, actual marine navigation conditions can be simulated, and thus vividness and richness of assessment can be enhanced. Ship sailing operation assessment can be carried out without restrictions of time and water areas. Whether in a one-way channel or in a two-way channel, an automatic assessment function after sailing is over can be realized, bad influences of subjective factors of an examiner on the assessment result can be avoided, workload of checking ship operation records by the examiner can be reduced, external other sailing data can be guided to the system of the invention for assessment, and the assessment level and the assessment quality are improved.
Description
Technical field
The present invention relates to a kind of navigation safety automatic evaluation analogue system in navigation safety field.
Background technology
Water transport is the major way that world commerce exchanges, and along with the continuous increase of the deepening continuously of trade contacts between the development of world economy, various countries, trading volume, boats and ships forward maximizes, specialized, intelligent, high speed direction development.Consider that most of Maritime Traffic Accident is all caused by human factor, so seem particularly important for the training and examination of crewman.
In today of scientific and technical develop rapidly, the own requisite means through becoming, many complication systems analyzed, designing, testing, assess of computer simulation emulation technology, it is based on mathematical theory, with computing machine and various physical facility for equipment tool, utilize system model to reality or the system of imagination carry out a complex art of test simulation research, mainly contain the methods such as physical simulation, Digital Simulation and physics-digital hybrid simulation.Computer simulation emulation technology is applied in navigation safety assessment test, there is navigation safety evaluating system, but existing navigation safety evaluating system is all manually check that the record case of student's practical operation is marked by examiner, lack certain automaticity, the workload of such examiner can be very large, and there is many subjective factors, the result of appraisal will be caused objective not and comprehensive.
Summary of the invention
For solving the problems referred to above that prior art exists, the present invention to design a kind of can improve examination level and quality reduce the workload of examiner and avoid subjective factor on the navigation safety evaluating system of the impact of assessment result, and can realize carrying out different ship types, different tonnes, the Project Navigation Safety Assessment examination of different principal dimensions boats and ships to boats and ships.
To achieve these goals, technical scheme of the present invention is as follows: a kind of navigation safety evaluating system, comprises main frame, flight-line design module, ship motion mathematical model module, Ship dynamic situation parameter acquisition module, grading module and historical record and playback module;
Described main frame is the MFC single document program adopting Visual C++, for realizing the display of User Interface, comprise main viewing area, information display panel, ambient As panel, this ship arranges panel, steering arranges panel and behaviour's deck plate, described flight-line design module, ship motion mathematical model module, Ship dynamic situation parameter acquisition module, grading module and historical record and playback module adopt dynamic chanining bank interface technology to carry out package design, realize the interconnection with main frame;
Described flight-line design module realizes flight-line design function, and described flight-line design comprises two kinds of methods: one manually on sea chart, adds way point, then connects each way point in turn to draw course line; Another kind is that course data is stored in text with the form of coordinate points, and flight-line design module directly draws out course line by reading this file on sea chart; Two kinds of flight-line design methods all have following functions: user selects design one-way track or double way channel; User increases in real time with mouse, revise, deletes way point and improve planned course on sea chart; User names course line on flight-line design panel, increases the start-stop port information in course line; User checks way point position, relative distance, relative orientation in way point list; User stores many course lines, real-time edition during operation, and every bar course line is arranged whether show on sea chart, navigation, editor and deletion action;
Described ship motion mathematical model module adopts the MMG ship motion mathematical model of Three Degree Of Freedom, provides the motion mathematical model of many boats and ships, comprises the ship motion mathematical model of not shipmate type, different boats and ships tonne, different designs ship type yardstick; And additional interference is arranged to this ship, described additional interference comprises wind direction, wind speed, the flow direction and flow velocity; Like this to realize not shipmate type, different tonnes, the boats and ships of the different Ship Design yardstick Project Navigation Safety Assessment when the additional interference of difference, make the content of crewman's practical operation assessment more comprehensive, simulation result has higher reference value and confidence level; Described Three Degree Of Freedom comprises swaying motion, surge motion and head and shakes motion; Described ship type comprises bulk freighter, break-bulk carrier, container ship and oil carrier, and described ship type yardstick comprises overall length, molded breadth and draft amount;
Described Ship dynamic situation parameter acquisition module is by resolving ship motion in the OnTimer timing function in front view class CShipAutoEvaluateView in main frame, the trigger interval of timer is set, and then obtain Ship dynamic situation supplemental characteristic, described parameter comprises the speed of a ship or plane of boats and ships, course, steering angular velocity, transverse velocity, longitudinal velocity and longitude and latitude, also comprise DEVIATION distance, the i.e. vertical range of boats and ships centre distance planned course, and then obtain the boats and ships leftmost side far from the distance of navigation channel left margin and the boats and ships rightmost side far from the distance of navigation channel right margin, arrange apart from the warning value on border, dangerous values, urgent value by cross track distance and then obtain boats and ships and exceed the number of times that the number of times of these values and boats and ships exceed border, navigation channel, for examination crewman provides Data support at whole flight number,
Described grading module comprises the setting of grading parameters and code of points, described grading parameters and the setting of code of points, be then to emulate according to actual experience data and this dynamic parameter obtained to contrast, then is formulated in conjunction with related data; Described grading parameters comprises boats and ships maximum break bounds value, at most break bounds number of times, apart from the urgent value in border, navigation channel, apart from navigation channel cutoff risk value with apart from border, navigation channel warning value, described code of points divides two kinds, be a code of points for one-way track, another kind is the code of points of double way channel;
E1, for one-way track, consider that present most of navigation channel is all artificial navigation channel, and the artificial navigation channel of major part is all trapezoidal navigation channel, so in order to ship navigation safety, does not allow boats and ships to exceed border, navigation channel; So emulation terminate after, statistics boats and ships exceed navigation channel number of times, exceed the urgent value number of times in border, navigation channel, exceed navigation channel cutoff risk value number of times and exceed border, navigation channel warning value number of times; Consider navigation channel, ship type, boats and ships tonne, Ship's Dimension, the speed of a ship or plane and distinguished and admirable, and set in conjunction with the many years of experience of multidigit captain and pilot and harbour overall design specification the standards of grading that related parameter values formulates complete set, point 4 grades, comprise outstanding, good, pass and fail;
E2, for double way channel, when not blocking traffic, boats and ships are allowed to exceed border inside navigation channel, so after emulation terminates, except statistics exceeds navigation channel number of times, exceeds the urgent value number of times in border, navigation channel, exceeds navigation channel cutoff risk value number of times and exceed except border, navigation channel warning value number of times, also will add up the maximum break bounds value of boats and ships and maximum break bounds number of times, standards of grading divide 5 grades, comprise outstanding, good, medium, pass and fail; Automatically export the grading system of this behaviour's ship according to pre-designed standards of grading after emulation terminates;
Described related data comprises harbour overall design specification;
Described historical record and playback module comprise historical record menu and flight path arranges menu, and for realizing the record and review function of aeronautical data, described aeronautical data comprises flight path, distinguished and admirable and steering data.Described flight path arranges the display mode of menu setting ship track, and display mode comprises the display of ship type or track line display, arranges the time interval of Target track displaying and the Fill Color of ship type simultaneously.Emulation terminates rear prompting and whether preserves history flight path, is used for preserving history flight path and historical data.Described historical record menu has loading history record and unloading historical record function, shows history track line, load the historical data be saved in text simultaneously with curve form on the sea chart of main viewing area.Loading history flight path and historical data simultaneously, make user understand the motion state of whole evaluation process boats and ships more clearly, be also convenient to the faulty operation of the generation of customer analysis evaluation process, Timeliness coverage is also dealt with problems.
Compared with prior art, advantage of the present invention and beneficial effect are:
1, because the present invention adopts computer simulation emulation technology, develop and a kind of navigation safety automatic evaluation system similar to marine actual conditions can be provided.The present invention can carry out the setting of not shipmate type, different distinguished and admirable situation, simulates sea going actual conditions, thus increases the verisimilitude and rich of assessment; Ship's navigation behaviour ship can not be carried out by the restriction in time, waters to assess; No matter be one-way track or double way channel, present invention achieves the automatic evaluation function after finished voyage, the examiner's subjective factor avoided is to the adverse effect of assessment result, decrease the workload that examiner checks behaviour's ship record, other aeronautical datas outside can also be imported to the present invention to assess, and code of points can be arranged voluntarily as required, improve level and the quality of assessment.
2, because the present invention adopts function modoularization to design, the modules division of labor is clear and definite, easy to maintenance and easily expand.The present invention is simple to operate, but powerful, provides powerful flight-line design function, can a large amount of course line of storage administration; Real-time edition can be carried out to monitored course line; Super reality emulation proportional time can be set, carry out training and examination assessment fast; The record and review of history flight path and data can be carried out, be convenient to monitor whole evaluation process.
Accompanying drawing explanation
The present invention has 7, accompanying drawing, wherein:
Fig. 1 is structural representation of the present invention.
Fig. 2 is operational flowchart of the present invention.
Fig. 3 is default user interface of the present invention.
Fig. 4 is flight-line design board interface of the present invention.
Fig. 5 is that grading parameters of the present invention arranges interface.
Fig. 6 is assessment result display interface of the present invention.
Fig. 7 is that flight path of the present invention arranges interface.
In figure: 1, main frame, 2, flight-line design module, 3, ship motion mathematical model module, 4, Ship dynamic situation parameter acquisition module, 5, grading module, 6, historical record and playback module.
Embodiment
Below in conjunction with Fig. 1, further detailed description is done to the present invention:
A kind of navigation safety evaluating system, comprises main frame 1, flight-line design module 2, ship motion mathematical model module 3, Ship dynamic situation parameter acquisition module 4, grading module 5 and historical record and playback module 6;
Described main frame 1 is the MFC single document program adopting Visual C++, for realizing the display of User Interface, comprise main viewing area, information display panel, ambient As panel, this ship arranges panel, steering arranges panel and behaviour's deck plate, described flight-line design module 2, ship motion mathematical model module 3, Ship dynamic situation parameter acquisition module 4, grading module 5 and historical record and playback module 6 adopt dynamic chanining bank interface technology to carry out package design, realize the interconnection with main frame 1;
Described flight-line design module 2 realizes flight-line design function, and described flight-line design comprises two kinds of methods: one manually on sea chart, adds way point, then connects each way point in turn to draw course line; Another kind is that course data is stored in text with the form of coordinate points, and flight-line design module 2 directly draws out course line by reading this file on sea chart; Two kinds of flight-line design methods all have following functions: user selects design one-way track or double way channel; User increases in real time with mouse, revise, deletes way point and improve planned course on sea chart; User names course line on flight-line design panel, increases the start-stop port information in course line; User checks way point position, relative distance, relative orientation in way point list; User stores many course lines, carries out real-time edition, and every bar course line is arranged whether show on sea chart, navigation, editor and deletion action;
Described ship motion mathematical model module 3 adopts the MMG ship motion mathematical model of Three Degree Of Freedom, provides the motion mathematical model of many boats and ships, comprises the ship motion mathematical model of not shipmate type, different boats and ships tonne, different designs ship type yardstick; And additional interference is arranged to this ship, described additional interference comprises wind direction, wind speed, the flow direction and flow velocity; Like this to realize not shipmate type, different tonnes, the boats and ships of the different Ship Design yardstick Project Navigation Safety Assessment when the additional interference of difference, make the content of crewman's practical operation assessment more comprehensive, simulation result has higher reference value and confidence level; Described Three Degree Of Freedom comprises swaying motion, surge motion and head and shakes motion; Described ship type comprises bulk freighter, break-bulk carrier, container ship and oil carrier, and described ship type yardstick comprises overall length, molded breadth and drinking water;
Described Ship dynamic situation parameter acquisition module 4 is by resolving ship motion in the OnTimer timing function in front view class CShipAutoEvaluateView in main frame 1, the trigger interval of timer is set, and then obtain Ship dynamic situation supplemental characteristic, described parameter comprises the speed of a ship or plane of boats and ships, course, steering angular velocity, transverse velocity, longitudinal velocity and longitude and latitude, also comprise DEVIATION distance, the i.e. vertical range of boats and ships centre distance planned course, and then obtain the boats and ships leftmost side far from the distance of navigation channel left margin and the boats and ships rightmost side far from the distance of navigation channel right margin, arrange apart from the warning value on border, dangerous values, urgent value by cross track distance and then obtain boats and ships and exceed the number of times that the number of times of these values and boats and ships exceed border, navigation channel, for examination crewman provides Data support at whole flight number,
Described grading module 5 comprises the setting of grading parameters and code of points, described grading parameters and the setting of code of points, be then to emulate according to actual experience data and this dynamic parameter obtained to contrast, then is formulated in conjunction with related data; Described grading parameters comprises boats and ships maximum break bounds value, at most break bounds number of times, apart from the urgent value in border, navigation channel, apart from navigation channel cutoff risk value with apart from border, navigation channel warning value, described code of points divides two kinds, be a code of points for one-way track, another kind is the code of points of double way channel;
E1, for one-way track, consider that present most of navigation channel is all artificial navigation channel, and the artificial navigation channel of major part is all trapezoidal navigation channel, so in order to ship navigation safety, does not allow boats and ships to exceed border, navigation channel; So emulation terminate after, statistics boats and ships exceed navigation channel number of times, exceed the urgent value number of times in border, navigation channel, exceed navigation channel cutoff risk value number of times and exceed border, navigation channel warning value number of times; Consider navigation channel, ship type, boats and ships tonne, Ship's Dimension, the speed of a ship or plane and distinguished and admirable, and set in conjunction with the many years of experience of multidigit captain and pilot and harbour overall design specification the standards of grading that related parameter values formulates complete set, point 4 grades, comprise outstanding, good, pass and fail;
E2, for double way channel, when not blocking traffic, boats and ships are allowed to exceed border inside navigation channel, so after emulation terminates, except statistics exceeds navigation channel number of times, exceeds the urgent value number of times in border, navigation channel, exceeds navigation channel cutoff risk value number of times and exceed except border, navigation channel warning value number of times, also will add up the maximum break bounds value of boats and ships and maximum break bounds number of times, standards of grading divide 5 grades, comprise outstanding, good, medium, pass and fail; Automatically export the grading system of this behaviour's ship according to pre-designed standards of grading after emulation terminates;
Described related data comprises harbour overall design specification;
Described historical record and playback module 6 realize the record and review function of aeronautical data, described aeronautical data comprises flight path, distinguished and admirable and steering data, the flight path of this module arranges the display mode that menu can arrange ship track, setting is the display of ship type or track line display, arranges the time interval of Target track displaying and the Fill Color of ship type simultaneously.Emulation terminates rear prompting and whether preserves history flight path, is used for preserving history flight path and historical data.There is in this module menu loading history writing function, history track line can be shown with curve form on the sea chart of main viewing area, load the historical data be saved in text simultaneously.With many loading histories flight path and historical data, make user understand the motion state of whole evaluation process boats and ships more clearly, be also convenient to the faulty operation of the generation of customer analysis evaluation process, Timeliness coverage is also dealt with problems.
The present invention adopts Visual C++ to develop, and operates in Windows operating system.
Method of work of the present invention, comprises the following steps (simulation operations flow process is shown in Fig. 2)
A, start up system.
B, design course line: a certain bar course line or oneself the design course line of selecting storage, design course line can adopt draws mode by flight-line design panel, also can adopt and load course line coordinate points file drafting, can draw one-way track and double way channel.
C, ship model are selected: arrange panel by this ship and select suitable ship model, mainly through checking that Ship Types, boats and ships tonne and ship type principal dimensions are selected.The initial position of boats and ships, the speed of a ship or plane and course are set.
D, optimum configurations: by ambient As panel, wind direction, wind speed, the flow direction, flow velocity are set; Panel is set by steering and selects mode of steering, manually or automatically mode of steering, if select autopilot, then select autopilot algorithm.And emulation proportional time is set.By flight path, the Fill Color that menu arranges the display mode of ship track, displaying time interval and ship type is set.
E, scoring are arranged: arrange menu by scoring and arrange grading parameters, comprise maximum break bounds value, at most break bounds number of times, apart from the urgent value in border, navigation channel, apart from navigation channel cutoff risk value, apart from border, navigation channel warning value.
F, start to emulate: the START button clicked on behaviour's deck plate starts emulation, START button becomes " stopping " button.Display mode and the color of distinguished and admirable factor, emulation proportional time and flight path can be changed in real time in operational process.Clicking " time-out " button on behaviour's deck plate can Break-Up System at any time.
G, end emulation: click " stopping " button on behaviour's deck plate, user can be pointed out whether to preserve emulation track data, show scoring item associated parameter data and assessment result afterwards.
H, to log off.
The embodiment of each subsystem of the present invention is as follows:
1, the embodiment of main frame 1
Main frame 1 builds based on Visual Studio 2010 platform, mainly complete the display of interaction interface, comprise main viewing area, ambient As panel, this ship arranges panel, steering arranges panel, grasp deck plate, information display panel and self-defining related menu order.And call other submodules by the form calling dynamic link library.
User interface carries out medium that is mutual and message exchange between the present invention and user, achieve the conversion that information inside form and the mankind can accept between form, make user can easily and effectively go operational hardware to reach two-way interactive, complete desired work.Good user-interface design is not only and is allowed software become individual character to have good taste, the operation of software also will be allowed to become comfortable, simple, free, fully demonstrate location and the feature of software.
Main frame 1 adopts MFC single document Model Design, and other display panels are all the MFC controls stopped that can float, and user and optionally can show or close each control panel according to the hobby of oneself again layout.Default user interface as shown in Figure 3.
2, flight-line design Function implementation mode
Flight-line design function depends on flight-line design module 2, is mainly used in designing the course line needed for navigation safety assessment.Major function concentrates on flight-line design panel, and user can select Freehandhand-drawing course line or load course line coordinate points to draw course line; User can select design one-way track or double way channel; User can increase on sea chart in real time with mouse, revise, delete way point improves planned course; User can name course line on flight-line design panel, increases the start-stop port information in course line; User can check way point position, relative distance, relative orientation in way point list; Many course lines can be stored, and the whether operation such as display, navigation, editor, deletion on sea chart is arranged to every bar course line.Flight-line design board interface as shown in Figure 4.
3, ship model arranges Function implementation mode
More comprehensive in order to make the practical operation of crewman examination, the invention provides many ship models, by Selecting parameter such as Ship Types, boats and ships tonne, Ship's Principal Dimensions, test and appraisal crewman can be investigated comprehensively and use professional knowledge and technical ability to handle the integration capability of boats and ships.
Ship motion mathematical model is the core of navigation safety evaluating system, the present invention adopts the MMG ship motion mathematical model of Three Degree Of Freedom, calculate the outer force and moment acted on hull such as distinguished and admirable according to the information such as airflow parameter, course, the speed of a ship or plane arranged, then utilize runge kutta method to obtain the longitudinal, laterally and turn first speed of boats and ships.
4, Ship dynamic situation parameter acquiring Function implementation mode
The acquisition of ship's navigation dynamic parameter is that we carry out that data compare, the foundation of comprehensive grading, concrete enforcement is then depend on ship motion mathematical model module 3, resolves obtain Ship dynamic situation supplemental characteristic in the OnTimer timing function of main frame 1 front view class CShipAutoEvaluateView to ship model.OnTimer partial function is as follows:
5, grading parameters and code of points Function implementation mode
The present invention arranges by scoring the setting that menu carries out evaluate parameter, comprises maximum break bounds value, at most break bounds number of times, apart from the urgent value in border, navigation channel, apart from navigation channel cutoff risk value, apart from border, navigation channel warning value.Then export these values to obtain for code of points module.After emulation terminates, according to pre-designed code of points, by the parameter that arranges with reach a conclusion the comparing of dynamic parameter of boats and ships real navigation, automatically output associated parameter data and assessment result.Scoring arranges menu interface as shown in Figure 5.Assessment result display interface as shown in Figure 6.
6, historical record and playback function embodiment
Main frame 1 increases flight path and arranges menu in order to arrange the display mode of ship track, can arrange the display of ship type or track line display, can arrange the time interval of Target track displaying and the Fill Color of ship type simultaneously.Emulation terminates rear prompting and whether preserves emulation track data, is used for preserving history flight path and historical data.Menu has loading history writing function, can show history track line with curve form on the sea chart of main viewing area.Native system can loading history data, comprise the dynamic datas such as boats and ships history flight path, course, speed, make user understand the motion state of whole evaluation process boats and ships more clearly, be also convenient to the faulty operation of the generation of customer analysis evaluation process, Timeliness coverage is also dealt with problems.Flight path arranges menu interface as shown in Figure 7.
Present invention achieves following functions:
1, sea chart function.The present invention can load the electronic chart data of global S57 form.The sea chart file of assigned address can be loaded; Sliding mouse roller reduces amplification sea chart with indefinite scale to be browsed; There is provided basic display, standard to show, all show three kinds of data display modes; There is provided daytime, at dusk, night three kinds of background color schemes.
2, flight-line design function.The invention provides the method for two kinds of flight-line design.(1) hand drawn course line on sea chart, by arranging way point and each way point successively having been coupled together flight-line design.(2) by course data is left in text with the form of coordinate points, and under being placed on specified file, loading obtains course line.One-way track or double way channel can be designed; After two kinds of flight-line design complete, can be increased in real time on sea chart by mouse, revise, delete way point and come modification and perfection course line; Course line title, start-stop port, course title can be added at flight-line design panel; Way point list the position of way point can be checked, the information such as relative distance on the right side of flight-line design panel; Many course lines can be stored select for operating personnel.
3, function is set.(1) ambient As: arrange external disturbance during emulation in real time, comprises wind direction, wind speed, the flow direction, flow velocity; (2) this ship is arranged: can by checking ship type (break-bulk carrier, container ship, bulk freighter, oil carrier), boats and ships tonne, Ship Design yardstick selects this to emulate ship model used; The speed of a ship or plane of this ship, course are set.(3) steering is arranged: can select hand steering and auto-pilot.(4) emulate proportional time to arrange: default time is the same ratio with the reality time, we can be set to super reality emulation and accelerate time course, save time.(5) navigation channel is arranged: can select to draw one-way track or double way channel, can draw different data, automatically carry out Project Navigation Safety Assessment to crewman according to different code of points for different navigation channel types.(6) flight path is arranged: the display mode that can arrange flight path in real time, the display of ship type or track line display; The time interval of Target track displaying can be set; The Fill Color of ship type can be set.
4, Presentation Function.The physical length of boats and ships and width show ship type with different engineer's scales on sea chart; Target track displaying comprises the display of ship type, and ship track line shows two kinds of modes, can arrange the time interval of ship track display and the Fill Color of ship type in real time; The motion state of real-time display boats and ships on sea chart, dynamically shows the position of this ship, the speed of a ship or plane, course, driftage apart from, boats and ships apart from navigation channel left margin distance, exceed the information such as the number of times in navigation channel apart from right margin distance and this ship with data mode at information display panel.
5, record and playback function.Can point out whether preserve emulation track data after emulation terminates, comprise Ship dynamic situation information, steering record, flight path information etc.User can check boats and ships history flight path by loading history record, and with curve form display boats and ships history flight path on sea chart, loading history navigation related data in the form of data.Thus add the transparency of crewman's examination, improve fair, fairness, be also convenient to user's review history simultaneously, find and correct deficiency.
6, automatic scoring function.User can arrange code of points parameter value by menu item, comprises maximum break bounds value, at most break bounds number of times, apart from the urgent value in border, navigation channel, apart from navigation channel cutoff risk value, apart from border, navigation channel warning value.According to above-mentioned data and pertinent literature (as harbour overall design specification), consider navigation channel, ship type, boats and ships tonne, Ship's Dimension, the speed of a ship or plane, the factor such as distinguished and admirable, and formulate a set of standards of grading completed in conjunction with the many years of experience of multidigit captain and pilot.Emulation terminates rear automatic display related data, comprise break bounds number of times, the number of times of urgent value, dangerous values and the warning value of being beyond the boundary, maximum break bounds distance waits and shows this assessment result emulated, one-way track comprise outstanding, good, pass, 4 grades of failing; Double way channel comprise outstanding, good, medium, pass, 5 grades of failing.Emulation terminates rear automatic output assessment result, not only reduces the impact of examiner's subjective factor on assessment result, and decreases the workload of examiner.
7, other functions.Have electronic bearing line and variable range marker circle instrument, can on sea chart measuring distance and orientation.
Claims (1)
1. a navigation safety evaluating system, is characterized in that: comprise main frame (1), flight-line design module (2), ship motion mathematical model module (3), Ship dynamic situation parameter acquisition module (4), grading module (5) and historical record and playback module (6);
Described main frame (1) is the MFC single document program adopting Visual C++, for realizing the display of User Interface, comprise main viewing area, information display panel, ambient As panel, this ship arranges panel, steering arranges panel and behaviour's deck plate, described flight-line design module (2), ship motion mathematical model module (3), Ship dynamic situation parameter acquisition module (4), grading module (5) and historical record and playback module (6) adopt dynamic chanining bank interface technology to carry out package design, realize the interconnection with main frame (1),
Described flight-line design module (2) realizes flight-line design function, and described flight-line design comprises two kinds of methods: one manually on sea chart, adds way point, then connects each way point in turn to draw course line; Another kind is that course data is stored in text with the form of coordinate points, and flight-line design module (2) directly draws out course line by reading this file on sea chart; Two kinds of flight-line design methods all have following functions: user selects design one-way track or double way channel; User increases in real time with mouse, revise, deletes way point and improve planned course on sea chart; User names course line on flight-line design panel, increases the start-stop port information in course line; User checks way point position, relative distance, relative orientation in way point list; User stores many course lines, real-time edition during operation, and every bar course line is arranged whether show on sea chart, navigation, editor and deletion action;
Described ship motion mathematical model module (3) adopts the MMG ship motion mathematical model of Three Degree Of Freedom, the motion mathematical model of many boats and ships is provided, comprises the ship motion mathematical model of not shipmate type, different boats and ships tonne, different designs ship type yardstick; And additional interference is arranged to this ship, described additional interference comprises wind direction, wind speed, the flow direction and flow velocity; Like this to realize not shipmate type, different tonnes, the boats and ships of the different Ship Design yardstick Project Navigation Safety Assessment when the additional interference of difference, make the content of crewman's practical operation assessment more comprehensive, simulation result has higher reference value and confidence level; Described Three Degree Of Freedom comprises swaying motion, surge motion and head and shakes motion; Described ship type comprises bulk freighter, break-bulk carrier, container ship and oil carrier, and described ship type yardstick comprises overall length, molded breadth and draft amount;
Described Ship dynamic situation parameter acquisition module (4) is by resolving ship motion in the OnTimer timing function in front view class CShipAutoEvaluateView in main frame (1), the trigger interval of timer is set, and then obtain Ship dynamic situation supplemental characteristic, described parameter comprises the speed of a ship or plane of boats and ships, course, steering angular velocity, transverse velocity, longitudinal velocity and longitude and latitude, also comprise DEVIATION distance, the i.e. vertical range of boats and ships centre distance planned course, and then obtain the boats and ships leftmost side far from the distance of navigation channel left margin and the boats and ships rightmost side far from the distance of navigation channel right margin, arrange apart from the warning value on border, dangerous values, urgent value by cross track distance and then obtain boats and ships and exceed the number of times that the number of times of these values and boats and ships exceed border, navigation channel, for examination crewman provides Data support at whole flight number,
Described grading module (5) comprises the setting of grading parameters and code of points, described grading parameters and the setting of code of points, be then emulate according to actual experience data and this dynamic parameter obtained to contrast, then formulated in conjunction with related data; Described grading parameters comprises boats and ships maximum break bounds value, at most break bounds number of times, apart from the urgent value in border, navigation channel, apart from navigation channel cutoff risk value with apart from border, navigation channel warning value, described code of points divides two kinds, be a code of points for one-way track, another kind is the code of points of double way channel;
E1, for one-way track, consider that present most of navigation channel is all artificial navigation channel, and the artificial navigation channel of major part is all trapezoidal navigation channel, so in order to ship navigation safety, does not allow boats and ships to exceed border, navigation channel; So emulation terminate after, statistics boats and ships exceed navigation channel number of times, exceed the urgent value number of times in border, navigation channel, exceed navigation channel cutoff risk value number of times and exceed border, navigation channel warning value number of times; Consider navigation channel, ship type, boats and ships tonne, Ship's Dimension, the speed of a ship or plane and distinguished and admirable, and set in conjunction with the many years of experience of multidigit captain and pilot and harbour overall design specification the standards of grading that related parameter values formulates complete set, point 4 grades, comprise outstanding, good, pass and fail;
E2, for double way channel, when not blocking traffic, boats and ships are allowed to exceed border inside navigation channel, so after emulation terminates, except statistics exceeds navigation channel number of times, exceeds the urgent value number of times in border, navigation channel, exceeds navigation channel cutoff risk value number of times and exceed except border, navigation channel warning value number of times, also will add up the maximum break bounds value of boats and ships and maximum break bounds number of times, standards of grading divide 5 grades, comprise outstanding, good, medium, pass and fail; Automatically export the grading system of this behaviour's ship according to pre-designed standards of grading after emulation terminates;
Described related data comprises harbour overall design specification;
Described historical record and playback module (6) comprises historical record menu and flight path arranges menu, for realizing the record and review function of aeronautical data, described aeronautical data comprises flight path, distinguished and admirable and steering data; Described flight path arranges the display mode of menu setting ship track, and display mode comprises the display of ship type or track line display, arranges the time interval of Target track displaying and the Fill Color of ship type simultaneously; Emulation terminates rear prompting and whether preserves history flight path, is used for preserving history flight path and historical data; Described historical record menu has loading history record and unloading historical record function, shows history track line, load the historical data be saved in text simultaneously with curve form on the sea chart of main viewing area; Loading history flight path and historical data simultaneously, make user understand the motion state of whole evaluation process boats and ships more clearly, be also convenient to the faulty operation of the generation of customer analysis evaluation process, Timeliness coverage is also dealt with problems.
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