CN104504278A - ECDIS-based ship safety intelligent evaluation and dynamic display system - Google Patents
ECDIS-based ship safety intelligent evaluation and dynamic display system Download PDFInfo
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- CN104504278A CN104504278A CN201410850563.XA CN201410850563A CN104504278A CN 104504278 A CN104504278 A CN 104504278A CN 201410850563 A CN201410850563 A CN 201410850563A CN 104504278 A CN104504278 A CN 104504278A
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Abstract
The invention discloses an ECDIS-based ship safety intelligent evaluation and dynamic display system. The system is provided with a data acquisition unit for obtaining the stall conditions and the overturn risk of the current ship under different sea conditions and obtaining the hydrological information of a wind wave field, and a central processing unit for communicating with a ship data bus and the data acquisition unit; the central processing unit is used for calculating the positions of the chip in the future hour by hour along a planned route according to the stall condition of the chip under the current seat condition, and calculating the risk grades of the ship along the planned route and within a seat region of concern at every moments according to the overturn risk data of the ship under different seat conditions and the hydrological information of the current wind wave field.
Description
Technical field
The present invention relates to a kind of safety evaluation system, particularly relate to a kind of security of shipping intelligent evaluation system based on ECDIS.Relate to Patent classificating number G01 to measure; Test G01C measuring distance, level or orientation; Exploration; Navigation; Gyroscope; Photogrammetry or video measuring G01C21/00 navigate; Be not included in the navigation instrument in G01C 1/00 to G01C 19/00 group.
Background technology
Along with the development of correlation technique, many weather forecast systems more and more start the various ships being applied to shipping company.Wherein FMS (Fleet Management System) the global weather wave display system of Japanese Weathernews company, applies comparatively extensive.This system can show the weather informations such as global each ocean 0000UTC and 1200UTC every day stormy waves of following 5 days.When reality uses, shipping enterprise ship safety management personnel according to Ship dynamic situation, can mark accommodation and planned course where necessary, get information about the stormy waves situation on following ship's navigation line and judge.
Be similar to the global weather wave display system of FMS, be more suitable for ocean navigation ship safety management and use, not there is practicality to the meteorological support of coastal waters navigation safety and operation.
First, the time step of the weather informations such as its high sea is 12 hours, for long coastal waters ship's navigation and operation ensure; Secondly, the grid office of data is 5 ° of x5 ° of longitudes and latitudes, also excessive; The most important thing is, this system does not carry out the function of risk assessment to be concerned about boats and ships, only can merely show high sea field, the whether safe of specific ship will be judged according to the experience of oneself by user, therefore can not provide decision references for the sacurity dispatching commander under particular boat high sea condition.
Summary of the invention
The present invention is directed to the proposition of above problem, and a kind of security of shipping intelligent evaluation system based on ECDIS of development, have:
Data acquisition unit: obtain current boats and ships stall condition and risk of toppling under different sea situation; Obtain wind and wave field hydrographic information;
The CPU (central processing unit) communicated with data acquisition unit with boats and ships data bus: according to the stall condition of boats and ships under current sea situation, Ship ' along planned course following by hour position; To topple under different sea situation risk data and current wind and wave field hydrographic information according to boats and ships, Ship ' is at planned course and the risk class being concerned about sea area each moment;
The computation process of risk class is as follows:
-set up the domain V={v of danger classes when boats and ships navigate by water in high sea
1, v
2, v
3}={ I, II, III}, wherein to represent danger very little for I; II representative has certain danger; It is very large that III represents danger;
-set up wind, unrestrained Flood inducing factors to the influence matrix of safety of ship; Set up the state set of risk Flood inducing factors;
The influence matrix of wind:
Wherein
represent a certain operational configuration t (t=1,2 ..., T) and under condition, strong wind state is s
1itime, there is the probability of j grade danger;
The influence matrix of wave:
Wherein
represent a certain operational configuration t (t=1,2 ..., T) and under condition, there is billow state s
2itime, there is the probability of j grade danger;
If the possible state set of wind and wave is respectively:
U
1＝(s
11,s
12,…,s
1n)
U
2＝(s
21,s
22,…,s
2m)
Wherein s
1iand s
2irepresent the strong wind of different brackets and the state of billow respectively; Note
A
1＝(a
11,a
12,…,a
1n)
A
2＝(a
21,a
22,…,a
2m)
Wherein a
1iand a
2irepresent the strong wind of different brackets and the probability of billow appearance respectively;
Under wind effect, the fuzzy subset of navigation scheme danger classes is:
Wherein, x
i(i=1,2 ..., N) represent under large wind action, there is the risk of different brackets danger;
For the effect of billow, the fuzzy subset of navigation scheme danger classes is:
Wherein, y
i(i=1,2 ..., N) represent under the effect of billow, there is the risk of described I, II, III grade danger;
Because boats and ships are under the effect of strong wind and billow simultaneously, therefore in high sea, the fuzzy assessment result of boats and ships risk factor grade is:
B＝(z
1,z
2,…,N)
Wherein, z
i=x
i+ y
i-x
iy
i(i=1,2 ..., N) represent under the acting in conjunction of high sea, there is the risk of different brackets danger in boats and ships.
Further, also there is storage and pay close attention to Ship Speed Loss performance and the database of risk of toppling.
Based on a security of shipping dynamic display system of ECDIS, have: transfer the Graphics Processing Unit of the described security of shipping intelligent evaluation system assessment result data based on ECDIS, store the dynamic link library of wave to model and tide model;
During work, described Graphics Processing Unit adopts contour tracing algorithm to draw wind speed and sea wave data.
Further, described Graphics Processing Unit adopts Hydrometeorological Factors Contours Fill algorithm, carries out color filling to Hydrometeorological Factors isoline region.
Further, described image uses the meteorological contour line filling algorithm based on sea chart background.
Further, described Graphics Processing Unit, blocks sea chart key element after adopting the translucent filling mode based on double buffers to solve Contours Fill.
Owing to have employed technique scheme, security of shipping intelligent evaluation based on ECDIS provided by the invention and dynamic display system, meet the Meteorological safeguard and service demand of China coastal seas ship's navigation and operation well, have more dynamically, intuitively, in real time, feature easy to use, the not wind and wave field in the same time dynamically provided and the risk status of boats and ships, can be maritime administration personnel and shipping enterprise ship safety management personnel provide command scheduling boats and ships, ensure the important aid decision making instrument of ship's navigation and job safety, simultaneously, also can be China specialized meteorological services personnel make a new generation coastal waters maritime affairs Meteorological safeguard and service product a kind of visual exploitation and display platform are provided.
Accompanying drawing explanation
In order to the technical scheme of clearer explanation embodiments of the invention or prior art, introduce doing one to the accompanying drawing used required in embodiment or description of the prior art simply below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is system module figure of the present invention
Embodiment
For making the object of embodiments of the invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, clear complete description is carried out to the technical scheme in the embodiment of the present invention:
As shown in Figure 1: a kind of security of shipping intelligent evaluation system based on ECDIS, mainly comprises:
Data acquisition unit: obtain current boats and ships stall condition and risk of toppling under different sea situation; Obtain wind and wave field hydrographic information.
As preferred embodiment, the stall condition of various boats and ships under different high sea states, adopts the mode to the captain having the long period and serve as these kind boats and ships carries out survey to obtain.
The risk status of boats and ships under different high sea states, be by particular boat under different high sea states, what what boats and ships speed over ground carried out adding up arrived;
The risk status of boats and ships under different high sea states, then according to Risk theory and technology, set up the risk system of boats and ships under high sea condition, design suitable questionnaire form, the mode of the captain having the long period and drive such boats and ships experience being carried out to survey obtains.
The CPU (central processing unit) communicated with data acquisition unit with boats and ships data bus: according to the stall condition of boats and ships under current sea situation, Ship ' along planned course following by hour position; To topple under different sea situation risk data and current wind and wave field hydrographic information according to boats and ships, Ship ' is at planned course and the risk class being concerned about sea area each moment;
Risk Flood inducing factors mainly considers the effect of natural cause to boats and ships.Should it is considered that strong wind, billow and gush greatly the long period and act on the impact that hull produces in high sea.For the boats and ships that different sea area is navigated by water, or different ship types, then stress face different, meanwhile, the angle of course and wind direction also must be considered.
Native system considers two Flood inducing factors, i.e. strong wind and billow, considers the angle in course and high sea direction simultaneously.As desirable in strong wind grade :≤6 grades, 7 grades, 8 grades, 9 grades and >=10 grades; Billow grade is desirable :≤1.5m, 1.5-2m, 2-3m, 3-4m and >=4m; The angle in course and high sea direction gets 0 °, 45 °, 90 °, 135 ° and 180 ° respectively.
The computation process of risk class is as follows:
First, the domain V={v of danger classes when boats and ships navigate by water in high sea is set up
1, v
2, v
3}={ I, II, III}, wherein to represent danger very little for I; II representative has certain danger; It is very large that III represents danger;
Then, wind, unrestrained Flood inducing factors is set up to the influence matrix of safety of ship; Set up the state set of risk Flood inducing factors;
The influence matrix of wind:
Wherein
represent a certain operational configuration t (t=1,2 ..., T) and under condition, strong wind state is s
1itime, there is the probability of j grade danger;
The influence matrix of wave:
Wherein
represent a certain operational configuration t (t=1,2 ..., T) and under condition, there is billow state s
2itime, there is the probability of j grade danger;
If the possible state set of wind and wave is respectively:
U
1＝(s
11,s
12,…,s
1n)
U
2＝(s
21,s
22,…,s
2m)
Wherein s
1iand s
2irepresent the strong wind of different brackets and the state of billow respectively; Note
A
1＝(a
11,a
12,…,a
1n)
A
2＝(a
21,a
22,…,a
2m)
Wherein a
1iand a
2irepresent the strong wind of different brackets and the probability of billow appearance respectively;
Under wind effect, the fuzzy subset of navigation scheme danger classes is:
Wherein, x
i(i=1,2 ..., N) represent under large wind action, there is the risk of different brackets danger;
For the effect of billow, the fuzzy subset of navigation scheme danger classes is:
Wherein, y
i(i=1,2 ..., N) represent under the effect of billow, there is the risk of described I, II, III grade danger;
Because boats and ships are under the effect of strong wind and billow simultaneously, therefore in high sea, the fuzzy assessment result of boats and ships risk factor grade is:
B＝(z
1,z
2,…,N)
Wherein, z
i=x
i+ y
i-x
iy
i(i=1,2 ..., N) represent under the acting in conjunction of high sea, there is the risk of different brackets danger in boats and ships.
In the present embodiment, the hydrometeorological information datas such as the wind and wave field used are from ocean, the Tianjin central meteorological observatory of responsible north of China maritime meteorology precaution alarm, on the basis of global wave Numerical Prediction System, the meticulous Numerical Forecasting Experiment On Sea Waves system of the covering CHINESE OFFSHORE scope of exploitation and the region of Huanghai-Bohai seas scope.Use the region wind field forecast of WRF mesoscale model 15km resolution, drive area LAGFD-WAM wave model.
WAVEWATCH III, matching connection and the parameters of carrying out pattern are arranged, introduce submarine topography data that resolution is respectively 15km and 5km to go forward side by side row relax, carry out the region Embedded process of pattern, use global LAGFD-WAM wave model to provide lateral boundary conditions for CHINESE OFFSHORE LAGFD-WAM wave model, use CHINESE OFFSHORE LAGFD-WAM wave model to provide lateral boundary conditions for yellow Bohai Sea scope LAGFD-WAM wave model.
Data scope is to the west of 125 ° of E, 33.5 ° to the north of N.The Time effect forecast of wind, wave and ocean current is 72h, and temporal resolution is 1h, and result of calculation output time interval is 12h, and every day upgraded in 2 pm of Beijing time and 2:00 AM.
The spatial resolution of each Element forecast result is not quite similar, and the spatial resolution that wind field exports data is 9 х 9km; The spatial resolution that wave field exports data is 0.1 ° of х 0.1 °; The spatial resolution that ocean current field exports data is 10 х 10km.
Weather data comprises the wavewatch grid model data that WRF mesoscale model wind-pressure field data, WRF mesoscale model stormy waves data and flow data and interpolation obtain, and mainly carries out organizing and storing with the form of data file.
Wherein, WRF mesoscale model wind-pressure field data take the form of text to store, and specifically, store the file of the air pressure of large-sized model wind-pressure field, wind speed component u, wind speed component v; Store the file of the air pressure of minimodel wind-pressure field, wind speed component u, wind speed component v; Large-sized model wind field lattice point 210*150, minimodel wind field lattice point 141*141.
Trend large-sized model and minimodel lattice point coordinate are stored in 2 files with text form respectively, and large-sized model grid lattice point is 78*61, and minimodel lattice point is 121*161.
Storage mapping file technique is a kind of access mechanism that Windows operating system provides for document data access, utilizes this technology, and system can for file retains a part of space in 2GB address space, by File Mapping to this block retaining space.After file is mapped, operating system will adapter page map, buffering and the task such as speed buffering, and do not need to call distribution, releasing memory block and file I/O function, do not need oneself to provide any buffer algorithm yet.Therefore, in Windows system, for the reading of large-data documents, storage mapping file technique can " distribute " to go out one piece of enough large memory headroom and meet request.
In basic platform, achieve herein the method by invoke memory mapped file class, realize the opening fast of magnanimity weather data file, close and the rapid loading of data.
A kind of security of shipping dynamic display system based on ECDIS, have: native system have employed weathercock that China commonly uses and wave sets up A weathercock model to display drafting mode, and the realization of this model is encapsulated in dynamic link library, by load dynamic link library just the method can called wherein realize the drafting of weathercock.
Weathercock and B wave are packaged into the realization of model and have been put in dynamic link library, by interface as follows can carry out easily in systems in which weathercock and wave to drafting and the adjustment of display effect.
C tide model is similar to wave to model, can come to add and differentiation to model with wave by bar length, chord, live width and the isoparametric setting of color.
In Hydrometeorological Factors data, the data of wind speed and wave are all carry out organizing and storing with the form of discrete grid block, in order to show better their rule, the contour tracing algorithm based on grid must be utilized to draw out their isoline.
Because Hydrometeorological Factors data itself are carry out organizing with the form of fictitious graticule, therefore can naturally adopt rectangular node tracing algorithm for the isoplethes drawing based on these data.
The rule of discrete data can be carried out visual by the isoline of Hydrometeorological Factors very well, but in electronic chart background, because sea chart interface itself is containing the thing reference symbol number such as a large amount of fathom curve and river, simple isoline form seems directly perceived not, even can produce the concrete meaning obscured and cause user to be difficult to distinguish many different lines.
Value information is waited in order to more intuitively more clearly show these meteorologies in sea chart background, native system is taken into consideration and is merged with the cutting of chart data and matching colors, a kind of Hydrometeorological Factors Contours Fill algorithm is proposed, color filling is carried out to Hydrometeorological Factors isoline region, and obviously distinguishes with other key elements in sea chart.
For this irregularity boundary and variation situation, native system proposes a kind of meteorological contour line filling algorithm based on sea chart background, this algorithm avoids complicated deterministic process, and scheme of colour is succinctly reasonable, is particularly suitable for that isoline is less and boundary line is more and complicated situation.
In addition, after meteorological contour line area filling, block other key elements of sea chart, for these regions, have employed the translucent filling mode based on double buffers when specific algorithm realizes.Like this, both can clearly illustrate meteorological grade for value information, the original information of sea chart can have been retained again simultaneously.
The above; be only the present invention's preferably embodiment; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to according to technical scheme of the present invention and inventive concept thereof and replace or change, all should be encompassed within protection scope of the present invention.
Claims (3)
1., based on a security of shipping intelligent evaluation system of ECDIS, it is characterized in that having:
Data acquisition unit: obtain current boats and ships stall condition and risk of toppling under different sea situation; Obtain wind and wave field hydrographic information;
The CPU (central processing unit) communicated with data acquisition unit with boats and ships data bus: according to the stall condition of boats and ships under current sea situation, Ship ' along planned course following by hour position; To topple under different sea situation risk data and current wind and wave field hydrographic information according to boats and ships, Ship ' is at planned course and the risk class being concerned about sea area each moment;
The computation process of risk class is as follows:
-set up the domain V={v of danger classes when boats and ships navigate by water in high sea
1, v
2, v
3}={ I, II, III}, wherein to represent danger very little for I; II representative has certain danger; It is very large that III represents danger;
-set up wind, unrestrained Flood inducing factors to the influence matrix of safety of ship; Set up the state set of risk Flood inducing factors;
The influence matrix of wind:
Wherein
represent a certain ship's speed, course and ship's speed and high sea angle t (t=1,2 ..., T) and under condition, high sea grade s
1itime, there is the probability of j grade danger;
The influence matrix of wave:
Wherein
represent a certain operational configuration t (t=1,2 ..., T) and under condition, there is billow state s
2itime, there is the probability of j grade danger;
If the possible state set of wind and wave is respectively:
U
1＝(s
11,s
12,…,s
1n)
U
2＝(s
21,s
22,…,s
2m)
Wherein s
1iand s
2irepresent the strong wind of different brackets and the state of billow respectively; Note
A
1＝(a
11,a
12,…,a
1n)
A
2＝(a
21,a
22,…,a
2m)
Wherein a
1iand a
2irepresent the strong wind of different brackets and the probability of billow appearance respectively;
Under wind effect, the fuzzy subset of navigation scheme danger classes is:
Wherein, x
i(i=1,2 ..., N) represent under large wind action, there is the risk of different brackets danger;
For the effect of billow, the fuzzy subset of navigation scheme danger classes is:
Wherein, y
i(i=1,2 ..., N) represent under the effect of billow, there is the risk of described I, II, III grade danger;
Because boats and ships are under the effect of strong wind and billow simultaneously, therefore in high sea, the fuzzy assessment result of boats and ships risk factor grade is:
B＝(z
1,z
2,…,N)
Wherein, z
i=x
i+ y
i-x
iy
i(i=1,2 ..., N) represent under the acting in conjunction of high sea, there is the risk of different brackets danger in boats and ships.
2. the security of shipping intelligent evaluation system based on ECDIS according to claim 1, is further characterized in that and has: store and pay close attention to Ship Speed Loss performance and the database of risk of toppling.
3. based on a security of shipping dynamic display system of ECDIS, it is characterized in that having: transfer the Graphics Processing Unit of the security of shipping intelligent evaluation system assessment result data based on ECDIS according to claim 1, store the dynamic link library of wave to model and tide model.
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| CN105513428A (en) * | 2015-11-20 | 2016-04-20 | 大连海事大学 | Intelligent analysis method for water area traffic saturation of ship routing |
| CN108072918A (en) * | 2016-11-15 | 2018-05-25 | 大连海洋科技工程有限公司 | For the meteorological information display process and device of the electronic Chart Display information system based on S-100 |
| CN110196986A (en) * | 2019-03-06 | 2019-09-03 | 智慧航海（青岛）科技有限公司 | The most short endurance Route optimization method of unmanned ship based on weather environment information |
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2014
- 2014-12-31 CN CN201410850563.XA patent/CN104504278A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104821103A (en) * | 2015-05-20 | 2015-08-05 | 大连海事大学 | Ship sailing safety assessment system |
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| CN105513428A (en) * | 2015-11-20 | 2016-04-20 | 大连海事大学 | Intelligent analysis method for water area traffic saturation of ship routing |
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| CN108072918A (en) * | 2016-11-15 | 2018-05-25 | 大连海洋科技工程有限公司 | For the meteorological information display process and device of the electronic Chart Display information system based on S-100 |
| CN110196986A (en) * | 2019-03-06 | 2019-09-03 | 智慧航海（青岛）科技有限公司 | The most short endurance Route optimization method of unmanned ship based on weather environment information |
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