CN205068800U - Boats and ships seaworthiness early warning system - Google Patents
Boats and ships seaworthiness early warning system Download PDFInfo
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- CN205068800U CN205068800U CN201520367181.1U CN201520367181U CN205068800U CN 205068800 U CN205068800 U CN 205068800U CN 201520367181 U CN201520367181 U CN 201520367181U CN 205068800 U CN205068800 U CN 205068800U
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Abstract
The utility model relates to a boats and ships seaworthiness early warning system, including boats and ships control and data transmission module, channel information real -time query module, seaworthiness differentiation cloth module, the boats and ships control includes on -board terminal, central server, boats and ships information monitoring administration subsystem with the data transmission module, the on -board terminal includes GPS receiver, communication module, antenna and power, the central server includes wireless serial ports device and database, be used for through communication network receives and analytic coming from the locating information at boats and ships terminal will again location information storage is in the database. The utility model discloses an early warning system, navigation state that can the real time monitoring boats and ships with information feedback to the on -board terminal that obtains, lets the boats and ships operator know the ship's navigation state again, can in time go on declaring effectively in advance to the danger that probably appears, has monitoring and forewarning and emergency treatment's effect to avoid the emergence of incident.
Description
Technical field
The utility model relates to a kind of seaworthiness early warning system, particularly, is applicable to the seaworthiness early warning system of inland water transport.
Background technology
Natural river course refers to the natural river that can carry out water transportation, and inland waterways refers to the general designation of natural river course, canal, lake, reservoir etc.In water channel, there is certain degree of depth, width, Clearance dimension, bending radius, and the waters of a safe navigation environment can be provided to be referred to as navigation channel to boats and ships.
Improve in shipping safety and efficiency in science, current main employing is aided with a series of decision analysis system based on two-dimensional vector electronic channel chart and carries out analyzing and manage to inland river navigable condition, advanced Spatial Information Technology and navigation channel pattern of water flow is how utilized to realize the information inquiry of boats and ships in cruiseway, location, monitoring, early warning and rescue more efficiently, for shipping safety management provides more efficient information system management means, by inland water transport cause to scientific, intelligent development, will be target and the direction of digitizing navigation construction.
In navigational capacity, the waterlevel data of Current electronic navigation channel chart comes from the monitoring information of riverine water level website more, and in conjunction with navigation channel landform, the mode calculated by interpolation provides navigable depth isoline.There is computational accuracy and ageing problem by the mode of monitoring station water level interpolation on the one hand, the time and space resolution of fairway depth can be caused lower; The depth of water is only one of factor of impact navigation on the other hand, and flow rate of water flow distribution characteristics (flow velocity size, the characteristics of fluid states such as crossing current, eddy current) has very important impact equally on navigation safety and efficiency.But in prior art, lack the display of velocity flow profile information, generally only represent the depth of water situation in navigation channel with the water level information of website, make the driver of boats and ships be difficult to recognize flow velocity size and the fluidised form of current.Waterway regulation works evaluation aspect is concentrated on to the modeling effort of navigable flow, for navigation provides the research of real-time flow rate water depth distribution to have no report.
Utility model content
The purpose of this utility model is to provide a kind of seaworthiness early warning system, it is characterized in that, comprises ship monitor and data transmission module, navigation channel information real-time query module, seaworthiness district distribution module;
Described ship monitor and data transmission module comprise Shipborne terminal, central server, ship information monitoring management subsystem;
Described Shipborne terminal comprises GPS, communication module, antenna and power supply;
Described central server comprises wireless serial device and database, for being received by described communication network and resolving the locating information from described boats and ships terminal, more described locating information is stored in a database.
In other words, the invention provides a kind of seaworthiness early warning system, it is characterized in that, comprise ship monitor and data transmission module, navigation channel information real-time query module, seaworthiness district distribution module, described ship monitor and data transmission module comprise Shipborne terminal, central server, ship monitor information management subsystem.
In the utility model, described Shipborne terminal comprises GPS, communication module, antenna and power supply.
In the utility model, described central server comprises wireless serial device and database, for being received by described communication network and resolving the locating information from described boats and ships terminal, more described locating information is stored in a database.
In the utility model, described central server also comprises for setting up three-dimensional navigation channel environment, integrates, shows the three-dimensional visualization module of all kinds of navigation channels key element in true navigation channel, realize boats and ships based on gps data navigate by water visual.
In the utility model, described locating information comprises positional information, the speed of a ship or plane, course.
In the utility model, the information that navigation is relevant is carried out three-dimensional comprehensive displaying by described navigation channel information real-time query module, combines, for ship navigation provides real-time flow velocity water depth distribution with water regime monitoring data with two-dimentional Hydrodynamic Model simultaneously.
By early warning system of the present utility model, the operational configuration of boats and ships can be monitored in real time, again by obtain information feed back to boats and ships terminal, ship operation person is allowed to understand ship navigation state, effective anticipation can be carried out in time to the danger that may occur, there is the effect of monitoring and early warning and emergency processing, thus avoid the generation of security incident.Simultaneously, by the navigable area that early warning system of the present utility model is drawn, the region of this ship navigation is applicable under can controlling current flow condition, navigation is in navigable area to help boats and ships to determine whether, whether the danger such as crash, stranded, timely adjustment course also takes reasonable effective measures to reduce dangerous odds, thus reduces marine incident odds, and then realizes boats and ships early warning effect.
Accompanying drawing explanation
Fig. 1 illustrates navigation channel of the present utility model early warning system structural drawing.
Embodiment
Below, technical scheme in the utility model embodiment is described in detail, it should be noted that, in this article, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.
In the utility model, Fig. 1 illustrates navigation channel early warning platform structure figure of the present utility model.
Seaworthiness early warning system described in the utility model, comprises ship monitor and data transmission module, navigation channel information real-time query module, seaworthiness district distribution module.Described ship monitor and data transmission module comprise Shipborne terminal, central server, ship monitor information management subsystem.Described Shipborne terminal comprises GPS, communication module, antenna and power supply.Described central server comprises wireless serial device and database, for being received by described communication network and resolving the locating information from described boats and ships terminal, more described locating information is stored in a database.Described central server also comprises for setting up three-dimensional navigation channel environment, integrates, shows the three-dimensional visualization module of all kinds of navigation channels key element in true navigation channel, realize boats and ships based on gps data navigate by water visual.Wherein, described locating information comprises positional information, the speed of a ship or plane, course.The information that navigation is relevant is carried out three-dimensional comprehensive displaying by described navigation channel information real-time query module, combines, for ship navigation provides real-time flow velocity water depth distribution with water regime monitoring data with two-dimentional Hydrodynamic Model simultaneously.
In the utility model, Navigation capacity analysis based on real time data is the key of boats and ships early warning system, inventor of the present utility model, through concentrating on studies, in conjunction with the water level in navigation channel, flow velocity, the information such as flow and structure crossing over river, attribute parameter information (the size of boats and ships, the speed of a ship or plane, course angle, drinking water etc.) and navigation channel information (water level, flow velocity, flow etc.) etc., utilize three-dimensional spatial analysis and computing method, analyze the change determining ship navigation ability, make boats and ships in opened the navigation or air flight waters, when sufficient understanding navigation channel information, navigation that can be safer is on the navigation channel be applicable to, meanwhile, the boats and ships in navigation channel can be avoided blindly to advance due to shortage information and the Calculation of Ship Grounding's that causes, the generation of the security incidents such as collision, ensure the safety of various ships navigation.
In the utility model, obtain boats and ships real time data in accordance with the following methods, the continual outside transmission ephemeris information of gps satellite and temporal information, boats and ships terminal receives above-mentioned information and passes through and calculates, the three-dimensional coordinate of boats and ships, the speed of a ship or plane and course can be obtained, Shipborne terminal obtains real-time positioning information by GPS, as longitude and latitude, the speed of a ship or plane, course angle, information is sent and is stored to network data base.When monitoring client sends request to network data base, database just can return to monitoring client the real-time positioning information choosing boats and ships.Then, according to the positional information (longitude and latitude) obtained, in the grid data of numerical value flow field, find node, if this positional information does not have node, then find from the nodal information of the nearest nodal information of current location information as current location, this process implementations is as follows:
First, the gridding information in input flow field and flow rate information, obtain positional information and the flow rate information of each node in flow field.Positional information comprises x, y, and flow rate information comprises u, v, h.Wherein x represents the longitude of node, and y represents the latitude of node, and u represents that, along latitudinal flow velocity, v represents the flow velocity along longitudinal, and h represents the depth of water.
Secondly, according to the vessel position Ship ' of acquisition and the distance of each node, flow rate of water flow u, v of nearest node is got, as flow rate of water flow u, v of this boats and ships present position.Here, the flow rate information (U of this boats and ships position
c) then can pass through following formula (1) and calculate:
The angle of current (β) is then the angle between the flow direction of boats and ships position node and middle of fairway, here, flow condition (the flow velocity of boats and ships present position can be obtained, the angle of current), according to vessel position, the Hydrologic Information (water level, flow etc.) of current location is obtained from database, Hydrologic Information is in continuous renewal, even therefore different time period same positions, Hydrologic Information also can be different, and the renewal frequency of Hydrologic Information changes with the renewal frequency of hydrometric station dot information.
Finally, after obtaining above-mentioned data, just can judge ship navigation ability, draw boats and ships under the present conditions by Minimum Navigable yardstick, generally include the depth of water, clear height (across), the wide and radius-of-curvature of flow velocity, boat, in this, as the data basis of follow-up safety of ship early warning.
In the utility model, navigation channel information real-time query module is the nucleus module of seaworthiness early warning system, is mainly used in setting up three-dimensional navigation channel environment, integrates, shows all navigation channels key element in true navigation channel, for boats and ships show the spatial information in navigation channel intuitively.Can in the environment of virtual navigation channel any changing position, the size of adjustable visual angle and focal length, to check the key element in each navigation channel.Meanwhile, system extracts Two-dimensional electron navigation channel chart key element, and in three-dimensional navigation channel, environment shows it, realizes the combination of two dimension and three-dimensional electronic navigation channel chart.
In addition, visualization model is simulated according to the navigation of ship's fix information to boats and ships of monitoring, and the traffic of display boats and ships Its Adjacent Waters, for boats and ships provide navigation Service.
In the utility model, water flow simulation module is a nucleus module of navigation channel information real-time query module, is mainly used in the simulation of navigational capacity.Water flow simulation module sets up two-dimentional Hydrodynamic Model, the hydrologic regime data (mainly the Monitoring Data of upstream and downstream hydrology website) of actual measurement is inputted hydrodynamic model, the depth of water and the flow velocity of each net point is solved by the method dividing Unstructured grid, carry out interpolation calculation again, drawing three-dimensional pattern of water flow, Reality simulation flow condition, shows the real-time depth of water and the velocity flow profile situation in navigation channel finally by sea-bottom contour and the mode such as flow-field visualized.In addition, in order to ensure that simulated flow condition has good real-time, water flow simulation module employ respectively based on OpenMP parallel computation technique and set up water flow simulation scheme base method, accelerate the calculating of numerical model and solve.
In the utility model, streamflow simulation not only can provide water level Water Depth Information for boats and ships, but also provides another key factor affecting ship's navigation, i.e. flow-shape.Calculate based on river two dimension Hydrodynamic Model, first need to use suitable discrete way to divide survey region, resolve into polygonal mesh; Then, the river numerical model based on hydrodynamics carries out streamflow simulation, and analog result comprises flow rate of water flow field, the depth of water of each polygon Nodes in whole survey region; Finally, the polygonal mesh adopted according to simulating river and the flow rate of water flow of each node of calculating and Water Depth Information, carry out real-time by the mode of sea-bottom contour, texture flow field and particIe system is drawn and represents, and particular content is as follows:
(1) sea-bottom contour or etc. dark face: on the basis of available data, all kinds of simulation sciences carries out to result visual, sea-bottom contour or etc. dark face be exactly a wherein representative class, the height that it not only can show landform rises and falls, and can also judge that the type of topography and geomorphology and gradient delay suddenly according to its density etc.Sea-bottom contour or etc. the display in dark face mainly go to cut existing grid landform by the face of multiple fixing water depth value, usually quadrilateral mesh is divided into four triangular mesh, so that calculate, calculate according to different current schemes again and vector quantization display is carried out to it, different water depth values can cut out different sea-bottom contours, and color gradient adopts the navigation channel sea-bottom contour standard of standard to show.With traditional two-dimentional sea-bottom contour unlike, this sea-bottom contour is a sea-bottom contour with 3-D effect, shows according to actual water level elevation, in anhydrous areas such as beaches, beach is exposed, the more true to nature 3-D effect illustrating sea-bottom contour.
(2) flow-field visualized based on texture image: no matter be water surface High-precision image pinup picture or water depth distribution figure, all can only express the form in river, but the flow-shape in river is not but embodied, in the simulation of current flowing, seem stiff, therefore, the simulation of flow-shape becomes the primary study object improving the visual aspect of current, dynamic current are simulated by the flow-field visualized mode based on texture image, from in the past be research object with flow field grid discrete data point method for visualizing is different, whole flow field is substituted the advection of particle by it as research object and with the Deformation Flow of image, core concept is the motion based on particle in flow field, particle movement is in the past substituted to show flow field state with the motion deformation of background image, it is a kind of method of macroscopical graphical representation microscopic particle motion.Plot step is as follows:
1) according to the amount of movement of current flow speed value computing grid node, draw the flow field grid after distortion, by texture, background image is out of shape with the distortion of grid;
2) adding Noise texture makes itself and background image merge to keep exquisiteness and the sustainability of flow field Dynamic Announce mutually, the effect of shared flow field spike, forms new flow field state image;
3) by the image of new production as a setting image carry out the circulation of a new round, and adopt different colors to show different flow velocity size distribution, realize the Dynamic Announce effect in flow field.
(3) flow-field visualized based on particIe system: particIe system is a kind of method applying the irregular fuzzy objective of more simulation, can simulate object along with the dynamic of time variations and randomness.Its basic thought is as fundamental element to represent irregularly shaped object using many simple fine particles.Therefore, can fluid particle be regarded as particle, the change procedure in so whole flow field just can regard the process of the birth of particle, motion and extinction as, its characteristics of motion can by calculated with mathematical model output control, and its birth can customize according to the demand of simulate effect, so the simulation of its stream field has good adaptability with the rule of withering away.
In addition, when needing the flow characteristics showing particle, need to relate to the parameters such as locus, vector size, direction, and adopt list structure to carry out storing to reduce the judgement of circulation, the arrow of usual employing movement represents, the length of arrow represents the size of flow velocity, wherein, red arrow represents that flow velocity is larger, green arrow represents that flow velocity is less, and the sensing of arrow represents flow velocity direction, and not only visually expressive force is unique, and can combine with physical mechanisms such as the movement under force of object, the true to nature motion state simulating current.
Water flow simulation module is mainly used in setting up hydrodynamic force numerical model, according to the Hydrologic Information of hydrometric station monitoring, simulates streamflow campaign, obtains the various flow conditions needed for navigation.Water flow simulation module adopts river course two dimensional model, sets up shallow water equation, solves navigation channel flow condition with finite volume method.Shallow water equation group conservation form is:
In formula (2): h is the depth of water; U, v are x, y direction flow velocity;
be respectively the base slope source item in x, y direction;
be respectively the frictional resistance gradient in x, y direction; Z
bfor bed level of the river, n is Manning coefficient.Wherein, equation does not consider the impact of coriolis force and wind-force.
When hydrodynamic model numerical simulation, general employing unhurried current boundary condition, given upstream flowrate border or discharge per unit width border, given water level border, downstream or stage-discharge border.
Because navigation channel has irregular complex appearance, select unstrctured grid to divide and discretize is carried out to navigation channel, to solve shallow water equation group.The dividing mode of unstrctured grid can keep the consistent of zoning and actual flow area as much as possible, to ensure computational accuracy.In addition, consider computing velocity and the computational accuracy of model, adopt the quadrilateral mesh of 30m and 100m precision to divide navigation channel.Wherein, the number of grid of 30m precision grid is the number of grid of 131855,100m precision grid is 9700.The grid number of precision grid in the utility model, can be selected from any range of 20m ~ 200m, is preferably any range of 30m ~ 100m, most preferably is about 30m.
For 30m grid, adopt above-mentioned serial computing model, after flow changes, stability Calculation required time about 30 minutes, long for computing time for real-time early warning system.Therefore, the result of calculation in order to ensure pattern of water flow has better real-time, adopts the following two kinds method to accelerate the computing velocity of model:
(1) based on the mathematical model of shared drive, the parallel computation of mode implementation model on polycaryon processor adding OpenMP parallel instruction in the circulation and computing block of source program non-correlation is adopted.On 16 core workstations, obtain the speed-up ratio of 8.68, make to shorten to 3 minutes computing time.
(2) set up water flow simulation scheme base, prestore the upstream hydrology stand in different water level under flow condition analog result.Seaworthiness early warning system only needs the current level inputting hydrometric station, upstream, just directly can call the result of calculation of similar water level from scheme base.Although the scheme base result called is accurate not as the result directly calculated, spent time is very short, generally only needs the several seconds.
Outside navigation channel, system needs to show road, place name, Administrative boundaries isovector key element.Therefore, load two-dimentional layer as texture, set up level of detail model (LOD), according to the two-dimensional map of viewpoint height display different accuracy, guarantee that the size of two-dimentional key element is applicable to screen.Like this, the display of two dimension and three-dimensional navigation channel information just can be realized by the switching of layer.In addition, the visual angle of system to two-dimensional model limits, and avoids two-dimentional key element to deform, thus affects user discrimination.
In navigation channel, system needs dark face, prohibited area, the seaworthiness district isovector key elements such as display current.These vector elements belong to dynamic key element, can change along with the change of flow condition.Static texture mapping cannot show key element process over time.Therefore, in navigation channel, set up three-dimensional flow model, represent different vector elements by different colors, these key elements are converted into three-dimensional from two dimension the most at last.For generalized case, system redness represents prohibited area, represents seaworthiness district by green, and represent the dark faces such as current by blueness, the depth of blueness then describes the size of the depth of water, and blueness more deep water is dark also larger.
Along with the complexity day by day of inland river navigation environment, the difficulty of shipping sector management increases gradually.Numeral navigation channel system as a kind of informationization, intelligentized instrument, to raising Navigation in Navigable efficiency with safeguard that navigation safety has important effect.Seaworthiness early warning system improves the efficiency of shipping management, has ensured the safety of ship's navigation.
Seaworthiness district distribution module is based on the hydrodynamic model result of calculation of ship's fix information and water flow simulation module, according to inland navigation standard, the seaworthiness district of boats and ships is drawn by visualization system, venture analysis is carried out to the contingent collision of boats and ships, stranded, the various maritime accidents forecast such as to hit a submerged reef, for boats and ships provide in time, Warning Service accurately.The information obtained is added into marine navigation window, draws recommend route, and then improves the homing capability of seaworthiness early warning system.
Seaworthiness early warning system of the present utility model, mainly contains the advantage of following five aspects:
The first, applying three-dimensional visualization technique, set up three-dimensional navigation channel model, represent the environment of navigation channel and bank realistically, show abundanter navigation channel information, make the people not possessing specialty background and technical know-how can know the navigation environment understanding navigation channel, strengthen the applicability of digital navigation channel system.
The second, simultaneously integrated two-dimensional and three-dimensional electronic navigation channel chart, set up virtual boats and ships, bridge and aid to navigation model on the one hand, reflect real navigation channel environment, be embedded in scene the virtual navigation channel key element that current sea-bottom contour, seaworthiness district, prohibited area etc. manually arrange division on the other hand, two dimension can fully be combined with the advantage of three-dimensional electronic navigation channel chart.
Three, applying GPS location technology is monitored in real time to ship navigation state, sets up remote web server and carries out storage and management to boats and ships, regimen and riverbed data, for shipping monitoring provide an opening, data sharing platform that can be mutual.No matter be marine navigator or Internal Shipping Management person, only need a light-duty client just can inquire about, analyze shipping data, navigation channel water environment is simulated, realizes the safe early warning of boats and ships.
Four, two-dimentional Hydrodynamic Model is adopted to carry out analogue simulation to navigation channel flow condition, flow field, waters environment is represented by flow field visualization method, for boats and ships provide dynamic navigational capacity information in real time, as wide in the depth of water, flow velocity, boat etc., meet the demand of boats and ships to navigation safety.
Five, set up pre-alarming system, according to Chinese inland navigation standard, according to the navigation channel flow condition of simulation, mark off the seaworthiness district of boats and ships, realize the safe early warning of ship's navigation.
The utility model proposes a kind of novel navigation channel boats and ships early warning system.Simulated by the navigational capacity in navigation channel, according to the Monitoring Data of hydrology website, set up two-dimentional Hydrodynamic Model, Reality simulation flow condition, according to inland navigation standard and ship information, determine prohibited area and the seaworthiness district of boats and ships, realize single ship early warning, for boats and ships and shipping management department provide in time, reliable Warning Service.In addition, early warning system of the present utility model, not only for single ship, also can be used for the early warning of many ships, anti-collision warning and the scheduling for concrete leg between ship and ship.
Claims (1)
1. a seaworthiness early warning system, is characterized in that, comprises ship monitor and data transmission module, navigation channel information real-time query module, seaworthiness district distribution module;
Described ship monitor and data transmission module comprise Shipborne terminal, central server, ship information monitoring management subsystem;
Described Shipborne terminal comprises GPS, communication module, antenna and power supply;
Described central server comprises wireless serial device and database, for being received by described communication network and resolving the locating information from described boats and ships terminal, more described locating information is stored in a database.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109752723A (en) * | 2019-01-07 | 2019-05-14 | 北京臻迪科技股份有限公司 | A kind of underwater topography drawing drawing method and device |
| CN111551234A (en) * | 2020-05-14 | 2020-08-18 | 中交华南勘察测绘科技有限公司 | Water level measuring method and device, computer equipment and storage medium |
| CN118278320A (en) * | 2024-05-24 | 2024-07-02 | 中交第四航务工程勘察设计院有限公司 | Inland waterway navigation early warning method and system based on hydrodynamic force simulation |
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2015
- 2015-06-01 CN CN201520367181.1U patent/CN205068800U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109752723A (en) * | 2019-01-07 | 2019-05-14 | 北京臻迪科技股份有限公司 | A kind of underwater topography drawing drawing method and device |
| CN109752723B (en) * | 2019-01-07 | 2020-12-29 | 北京臻迪科技股份有限公司 | Underwater topographic map drawing method and device |
| CN111551234A (en) * | 2020-05-14 | 2020-08-18 | 中交华南勘察测绘科技有限公司 | Water level measuring method and device, computer equipment and storage medium |
| CN118278320A (en) * | 2024-05-24 | 2024-07-02 | 中交第四航务工程勘察设计院有限公司 | Inland waterway navigation early warning method and system based on hydrodynamic force simulation |
| CN118278320B (en) * | 2024-05-24 | 2024-08-16 | 中交第四航务工程勘察设计院有限公司 | Inland waterway navigation early warning method and system based on hydrodynamic force simulation |
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