CN116343533A - Marine survey ship monitoring and early warning method, system, equipment and medium - Google Patents
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Abstract
The invention discloses a marine survey ship monitoring and early warning method, a system, equipment and a medium, and relates to the technical field of ship automatic identification systems, wherein the method comprises the following steps: acquiring AIS data of a ship; calculating longitude and latitude coordinates of a track center point of the ship according to longitude and latitude coordinates of all track points of the ship at a specific time; calculating the radius of the operation area of the ship according to the longitude and latitude coordinate values of the track point of the ship and the longitude and latitude coordinate values of the track center point of the ship; calculating an average speed of the vessel within the working area radius; calculating the slope between two points according to time sequence in the radius of the operation area according to the longitude and latitude coordinate values of the track point of the ship and the longitude and latitude coordinate values of the track center point of the ship; calculating the total number of track points with the same slope and the product of-1 (two straight lines are vertical) according to the slope; and identifying the behavior of the ship according to the total number of track points with the same average speed and the same slope and the product of-1.
Description
Technical Field
The invention relates to the technical field of automatic ship identification systems, in particular to a marine survey ship monitoring and early warning method, a marine survey ship monitoring and early warning system, marine survey ship monitoring and early warning equipment and marine survey ship early warning medium.
Background
Normal marine vessels rely on automatic vessel identification systems (AIS systems) for identity verification and sailing dynamics determination. The ship-borne AIS equipment transmits ship identity information and positioning information (such as GPS, beidou and the like) to a shore-based receiving station, a ship-borne receiving station, satellites and the like in real time. But information sent by marine vessel signal transmitting systems such as AIS can be tampered and deleted. Thus, the acquired offshore AIS information is not completely real or complete, which presents difficulties for offshore navigation safety and sea supervision. Wherein the supervision of the offshore survey vessel is more challenging, and the offshore survey purposes performed by the vessel are variously classified into a comprehensive survey vessel, a geophysical survey vessel, a topography survey vessel, a drilling vessel, a supply vessel, and the like. How to analyze the ship working content according to the ship track without knowing the ship type or the ship AIS information being tampered is a problem which is not solved by the technology at present.
Aiming at the marine survey ship, the prior art mainly carries out identity identification and behavior judgment through a ship-borne AIS system. Because AIS system information can be tampered, the reliability is very low, and particularly, behaviors such as some illegal out-of-range measuring ships and some illegal resource exploitation cannot be identified and authenticated simply through the on-board AIS system. Bringing about potential hazards to sea supervision and sea navigation safety.
Disclosure of Invention
Aiming at the problems that in the prior art, the identity identification is unreliable by means of a shipborne AIS system and the behavior of illegal operation ships tampering with AIS system information cannot be found in an early warning mode, the invention provides a method, a system, equipment and a medium for monitoring and early warning of marine survey ships, which can identify and early warn the operation behavior of the marine survey ships according to tracks.
In order to achieve the above purpose, the present invention provides the following technical solutions:
in a first aspect, the present invention provides a marine survey vessel monitoring and warning method comprising:
acquiring AIS data of a ship;
calculating longitude and latitude coordinates of a track center point of the ship according to longitude and latitude coordinates of all track points of the ship at a specific time;
calculating the radius of the operation area of the ship according to the longitude and latitude coordinate values of all track points at the specific time of the ship and the longitude and latitude coordinate values of the track center point of the ship;
calculating an average speed of the vessel within the working area radius;
calculating the slope between two points according to time sequence in the radius of the operation area according to the longitude and latitude coordinate values of any track point of the ship and the longitude and latitude coordinate values of the track center point of the ship;
calculating the total number of track points with the same slope and the slope product of-1 according to the slopes;
and identifying the behavior of the ship according to the total number of track points with the same average speed and the same slope and the slope product of-1, wherein the behavior of the ship comprises offshore geological sampling, offshore topography measurement, offshore geophysical measurement and offshore drilling.
In a second aspect, the present invention provides an offshore survey vessel monitoring and warning system comprising:
a data acquisition unit for acquiring AIS data of the ship;
a processing unit for performing the steps of:
calculating longitude and latitude coordinates of a track center point of the ship according to longitude and latitude coordinates of all track points of the ship at a specific time;
calculating the radius of the operation area of the ship according to the longitude and latitude coordinate values of all track points at the specific time of the ship and the longitude and latitude coordinate values of the track center point of the ship;
calculating an average speed of the vessel within the working area radius;
calculating the slope between two points according to time sequence in the radius of the operation area according to the longitude and latitude coordinate values of any track point of the ship and the longitude and latitude coordinate values of the track center point of the ship;
calculating the total number of track points with the same slope and the slope product of-1 according to the slope;
and the identification unit is used for identifying the behavior of the ship according to the total number of track points with the same average speed and the same slope and the slope product of-1, wherein the behavior of the ship comprises offshore geological sampling, offshore topography measurement, offshore geophysical measurement and offshore drilling.
In a third aspect, the present invention provides an electronic device, the electronic device comprising a processor and a memory, wherein at least one instruction, at least one program, a code set or an instruction set is stored in the memory, and the at least one instruction, the at least one program, the code set or the instruction set is loaded and executed by the processor, so as to implement the marine survey vessel monitoring and early warning method as described above.
In a fourth aspect, the present invention provides a computer readable storage medium having stored therein at least one instruction, at least one program, code set or instruction set loaded and executed by a processor to implement an offshore survey vessel monitoring and warning method as described above.
Compared with the prior art, the invention has the beneficial effects that: the invention changes the unreliability of identity identification by means of the shipborne AIS system in the past, and avoids the problem that the behavior of tampering AIS system information by ships in the past for illegal operation cannot be found in early warning. The invention can effectively identify four measuring behaviors of offshore geological sampling, offshore topography measurement, offshore geophysical measurement (offshore earthquake measurement and offshore gravity magnetic measurement) and offshore drilling by identifying the identity and the operation content according to the navigation track of the ship.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following description will briefly explain the drawings needed in the embodiments, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of a method for monitoring and pre-warning marine survey vessels in an embodiment of the invention;
FIG. 2 is a diagram of a Ramform Sovereign marine seismic survey path in accordance with an embodiment of the invention;
fig. 3 is a schematic diagram of a drilling platform operation track according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
Examples:
it should be noted that the terms "first," "second," and the like in the description and the claims of the present invention and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the invention described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed or inherent to such process, method, article, or apparatus.
Aiming at the marine survey ship, the prior art mainly carries out identity identification and behavior judgment through a ship-borne AIS system. Because AIS system information can be tampered, the reliability is very low, and particularly, behaviors such as theft measurement and theft of underwater relics aiming at some illegal out-of-range measuring ships and some illegal in-water relics cannot be identified and authenticated simply through the ship-borne AIS system. Bringing about potential hazards to sea supervision and sea navigation safety.
Based on the technical problems, the main purpose of the invention is to analyze and identify the navigation track of the marine vessel to identify the marine measurement behaviors of the marine vessel, wherein the marine measurement behaviors mainly comprise four measurement behaviors of marine geological sampling, marine topography measurement, marine geophysical measurement (marine seismic survey and marine gravity magnetic survey) and offshore drilling.
Referring to fig. 1 to 3, a marine survey ship monitoring and early warning method specifically includes the following steps:
step 1: and acquiring AIS data of the ship.
In the step, the marine AIS equipment return information mainly comprises static data and dynamic data, and specifically, the main data parameters of the ship static data comprise ship MMSI number, ship IMO number, ship name, ship type, ship nationality, ship length, ship width, total tonnage and the like. The ship dynamic data includes basic information such as ship MMSI number, ship IMO number, ship name, ship type, etc. as well as real-time dynamic information, for example: destination, destination port, longitude, latitude, heading, speed, etc.
Step 2: and calculating the longitude and latitude coordinates of the track center point of the ship according to the longitude and latitude coordinates of all track points at the specific time of the ship.
In the step, firstly, all the longitude and latitude coordinate values of the track points at the specific time of the ship are converted into units of degrees, and then the formula is utilized:
calculating longitude and latitude coordinates of a central point, wherein +.>
Is the longitude and latitude coordinates of the central point,/->
For longitude and latitude coordinates of any track point, +.>
The number of the track points.
Step 3: and calculating the radius of the operation area of the ship according to the longitude and latitude coordinate values of all the track points at the specific time of the ship and the longitude and latitude coordinate values of the track center point of the ship.
In this step, it is necessary to calculate each track point to the center point
Distance of->
Specifically, when->
(wherein
To the center point->
Distance is greater than->
Is>
To the center point->
Distance is less than->
The set of points of (c) ∈this time ∈>
The value is positioned as +.>
I.e. +.>
。
Step 4: an average speed of the vessel within the working area radius is calculated.
In some embodiments, the "speed" data in the AIS device may be obtained, and the radius of the operating area calculated
Average speed in the range: />
. In other embodiments, if high performance calculation is used, the coordinate position can be calculated according to the track time sequence to obtain the accurate average speed, and the formula is adopted: />
。
Step 5: and calculating the slope between the two points according to time sequence in the radius of the operation area according to the longitude and latitude coordinate values of all the track points at the specific time of the ship and the longitude and latitude coordinate values of the track center point of the ship.
In this step, the center point is taken as
Drawing radius +.>
Is a working area. Data in the working area calculates the slope between two points according to time sequence: />
。
Step 5: and calculating the total number of track points with the same slope and the number of points with the product of-1 (two straight lines are vertical) according to the slope.
In this step, the number of trace points with the same slope and opposite slope needs to be calculated:
, />
for a total of points with a ratio equal to 1The number of the Chinese characters is required to satisfy the condition: />
(error ± 0.09, i.e. 5 ° deviation). />
For the total number of points with a ratio equal to-1, the condition is satisfied: />
(error ± 0.09, i.e. 5 ° deviation).
Step 6: and identifying the behavior of the ship according to the total number of points with the same average speed and the same slope and the product of-1 (two straight lines are vertical).
In this step, a trace statistic analysis is required, in particular if
And (2) and
illustrating that it is continuously performing back and forth linear navigation measurements. In the course of course, the course direction presents the course of back and forth regular interval, regular course and specific speed. This is consistent with the marine geophysical survey, and it is determined that the marine geodetic survey is being performed, and the specific content of the survey needs to be further determined according to the speeds shown in table 1. If use center point +>
Is the center, radius->
The region of (2) is the working region, the time sequence database is sequentially searched, if +.>
(error)<1 section), and intermittently, if the duration exceeds 30 minutes, the method accords with the starting dynamic positioning to perform geological sampling behaviors, and judges that the method is performing geological sampling; if the fixed point location exceeds 24 hours, it is determined that it is performing the drilling operation.
The above steps can form the table 1, and the ship behavior can be identified.
Table 1 table for measuring active content and track parameters
Based on the same inventive concept, the embodiment of the invention also provides an offshore measurement ship monitoring and early warning system, which comprises: the system comprises a data acquisition unit, a processing unit and an identification unit, wherein the data acquisition unit is used for acquiring AIS data of a ship;
the processing unit is used for executing the following steps: calculating longitude and latitude coordinates of a track center point of the ship according to longitude and latitude coordinates of all track points of the ship at a specific time; calculating the radius of the operation area of the ship according to the longitude and latitude coordinate values of all track points at the specific time of the ship and the longitude and latitude coordinate values of the track center point of the ship; calculating an average speed of the vessel within the working area radius; calculating the slope between two points according to time sequence in the radius of the operation area according to the longitude and latitude coordinate values of any track point of the ship and the longitude and latitude coordinate values of the track center point of the ship; and calculating the total number of track points with the same slope and the product of-1 (two straight lines are vertical) according to the slope. The identification unit is used for identifying the behavior of the ship according to the total number of track points with the same average speed and the same slope and opposite slope.
Because the system is a system corresponding to the marine survey ship monitoring and early warning method according to the embodiment of the invention, and the principle of solving the problem of the system is similar to that of the method, the implementation of the system can refer to the implementation process of the method embodiment, and the repetition is omitted.
Based on the same inventive concept, the embodiment of the invention also provides an electronic device, which comprises a processor and a memory, wherein at least one instruction, at least one section of program, a code set or an instruction set is stored in the memory, and the at least one instruction, the at least one section of program, the code set or the instruction set is loaded and executed by the processor so as to realize the offshore survey vessel monitoring and early warning method.
It is understood that the Memory may include random access Memory (Random Access Memory, RAM) or Read-Only Memory (RAM). Optionally, the memory includes a non-transitory computer readable medium (non-transitory computer-readable storage medium). The memory may be used to store instructions, programs, code sets, or instruction sets. The memory may include a stored program area and a stored data area, wherein the stored program area may store instructions for implementing an operating system, instructions for at least one function, instructions for implementing the various method embodiments described above, and the like; the storage data area may store data created according to the use of the server, etc.
The processor may include one or more processing cores. The processor uses various interfaces and lines to connect various portions of the overall server, perform various functions of the server, and process data by executing or executing instructions, programs, code sets, or instruction sets stored in memory, and invoking data stored in memory. Alternatively, the processor may be implemented in hardware in at least one of digital signal processing (Digital Signal Processing, DSP), field programmable gate array (Field-Programmable Gate Array, FPGA), programmable logic array (Programmable Logic Array, PLA). The processor may integrate one or a combination of several of a central processing unit (Central Processing Unit, CPU) and a modem etc. Wherein, the CPU mainly processes an operating system, application programs and the like; the modem is used to handle wireless communications. It will be appreciated that the modem may not be integrated into the processor and may be implemented by a single chip.
Because the electronic device is the electronic device corresponding to the marine survey ship monitoring and early warning method in the embodiment of the invention, and the principle of solving the problem of the electronic device is similar to that of the method, the implementation of the electronic device can refer to the implementation process of the embodiment of the method, and the repetition is omitted.
Based on the same inventive concept, the embodiment of the invention further provides a computer readable storage medium, wherein at least one instruction, at least one section of program, code set or instruction set is stored in the storage medium, and the at least one instruction, the at least one section of program, the code set or instruction set is loaded and executed by a processor to realize the offshore survey vessel monitoring and early warning method as described above.
Those of ordinary skill in the art will appreciate that all or part of the steps of the various methods of the above embodiments may be implemented by a program that instructs associated hardware, the program may be stored in a computer readable storage medium including Read-Only Memory (ROM), random access Memory (Random Access Memory, RAM), programmable Read-Only Memory (Programmable Read-Only Memory, PROM), erasable programmable Read-Only Memory (Erasable Programmable Read Only Memory, EPROM), one-time programmable Read-Only Memory (OTPROM), electrically erasable programmable Read-Only Memory (EEPROM), compact disc Read-Only Memory (Compact Disc Read-Only Memory, CD-ROM) or other optical disk Memory, magnetic disk Memory, tape Memory, or any other medium that can be used for carrying or storing data that is readable by a computer.
Because the storage medium is a storage medium corresponding to the marine survey ship monitoring and early warning method according to the embodiment of the invention, and the principle of solving the problem by the storage medium is similar to that of the method, the implementation of the storage medium can refer to the implementation process of the embodiment of the method, and the repetition is omitted.
In some possible implementations, aspects of the method of the embodiments of the invention may also be implemented in the form of a program product comprising program code for causing a computer device to carry out the steps of the method of marine survey vessel monitoring and warning according to the various exemplary embodiments of the application described herein, when the program product is run on the computer device. Wherein executable computer program code or "code" for performing the various embodiments may be written in a high-level programming language such as C, C ++, c#, smalltalk, java, javaScript, visual Basic, structured query language (e.g., act-SQL), perl, or in a variety of other programming languages.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement the same, and are not intended to limit the scope of the present invention. All equivalent changes or modifications made in accordance with the essence of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The marine survey ship monitoring and early warning method is characterized by comprising the following steps of:
acquiring AIS data of a ship;
calculating longitude and latitude coordinates of a track center point of the ship according to longitude and latitude coordinates of all track points of the ship at a specific time;
calculating the radius of the operation area of the ship according to the longitude and latitude coordinate values of all track points at the specific time of the ship and the longitude and latitude coordinate values of the track center point of the ship;
calculating an average speed of the vessel within the working area radius;
calculating the slope between two adjacent points according to time sequence in the radius of the operation area according to the longitude and latitude coordinate values of any track point of the ship and the longitude and latitude coordinate values of the track center point of the ship;
calculating the total number of track points with the same slope according to the slope;
and identifying the behavior of the ship according to the total number of track points with the same average speed and the same slope, wherein the behavior of the ship comprises offshore geological sampling, offshore topography measurement, offshore geophysical measurement and offshore drilling.
2. The marine survey vessel monitoring and forewarning method of claim 1, wherein the AIS data of the vessel comprises static data and dynamic data, the static data comprising vessel MMSI number, vessel IMO number, vessel name, vessel type, ship's cadastral, vessel length, vessel width, and total tonnage; the dynamic data includes, in addition to the static data, a destination of the vessel, a destination port, longitude, latitude, heading, and speed.
3. The marine survey vessel monitoring and warning method of claim 1, wherein the vessel's locus center point latitude and longitude coordinates are calculated using the following formula,
in (1) the->
Is the longitude and latitude coordinates of the central point,/->
For arbitrary track points->
Longitude and latitude coordinates.
4. The marine survey vessel monitoring and warning method of claim 1, wherein the working area radius of the vessel is calculated according to the method,
firstly, calculating longitude and latitude coordinates of each track point to longitude and latitude coordinates of a central point
Distance of->
，
When (when)
When (I)>
The included point is the point in the operation area, < >>
Middle distance center point>
Value of furthest point->
I.e. defined as the radius of the working area +.>
，
In the method, in the process of the invention,
to the center point->
Distance is less than->
Is>
Is a set of all points.
5. The marine survey vessel monitoring and warning method of claim 1, wherein the acquiring of "speed" data within the AIS equipment calculates the working area radius
Average speed in the range: />
The method comprises the steps of carrying out a first treatment on the surface of the Or, calculating the coordinate position according to the track time sequence to obtain the accurate average speed, wherein the following formula is as follows: />
。
6. The marine survey vessel monitoring and warning method of claim 1, wherein calculating the slope between two points in time series is calculated according to the following equation:
the method comprises the steps of carrying out a first treatment on the surface of the Calculating the number of points with the same slope and the product of-1: />
The total number of points with equal slope is required to satisfy the condition: />
Wherein (1)>
And->
Is the slope of any two points; />
Total number of points for which the slope product is equal to-1Namely, the conditions need to be satisfied: />
。
7. The marine survey vessel monitoring and warning method of claim 1, wherein the behavior of the vessel is identified based on a track statistic analysis:
when (when)
And->
Judging that the navigation survey line measurement is being carried out;
at the center point
Is the center, radius->
The region of (2) is the working area, the time sequence database is sequentially searched, when +.>
And intermittently, if the time exceeds 30 minutes, judging that the geological sampling is performed;
when the fixed point position exceeds 24 hours, it is judged that it is performing the drilling operation.
8. An offshore survey vessel monitoring and warning system, comprising:
a data acquisition unit for acquiring AIS data of the ship;
a processing unit for performing the steps of:
calculating longitude and latitude coordinates of a track center point of the ship according to longitude and latitude coordinates of all track points of the ship at a specific time;
calculating the radius of the operation area of the ship according to the longitude and latitude coordinate values of all track points at the specific time of the ship and the longitude and latitude coordinate values of the track center point of the ship;
calculating an average speed of the vessel within the working area radius;
calculating the slope between two points according to time sequence in the radius of the operation area according to the longitude and latitude coordinate values of any track point of the ship and the longitude and latitude coordinate values of the track center point of the ship;
calculating the total number of track points with the same slope and the slope product of-1 according to the slopes;
and the identifying unit is used for identifying the behavior of the ship according to the average speed and the slope which are the same and the total number of track points with the product of-1, wherein the behavior of the ship comprises offshore geological sampling, offshore topography measurement, offshore geophysical measurement and offshore drilling.
9. An electronic device comprising a processor and a memory, wherein the memory stores at least one instruction, at least one program, a set of codes, or a set of instructions, the at least one instruction, the at least one program, the set of codes, or the set of instructions being loaded and executed by the processor to implement the marine survey vessel monitoring and early warning method of any one of claims 1 to 7.
10. A computer readable storage medium having stored therein at least one instruction, at least one program, code set, or instruction set loaded and executed by a processor to implement the marine survey vessel monitoring and warning method of any one of claims 1 to 7.
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