CN117037400B - Electronic fence system of ocean natural protected area - Google Patents
Electronic fence system of ocean natural protected area Download PDFInfo
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- CN117037400B CN117037400B CN202311122982.7A CN202311122982A CN117037400B CN 117037400 B CN117037400 B CN 117037400B CN 202311122982 A CN202311122982 A CN 202311122982A CN 117037400 B CN117037400 B CN 117037400B
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Classifications
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/02—Mechanical actuation
- G08B13/12—Mechanical actuation by the breaking or disturbance of stretched cords or wires
- G08B13/122—Mechanical actuation by the breaking or disturbance of stretched cords or wires for a perimeter fence
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/886—Radar or analogous systems specially adapted for specific applications for alarm systems
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B31/00—Predictive alarm systems characterised by extrapolation or other computation using updated historic data
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G3/00—Traffic control systems for marine craft
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/40—Controlling or monitoring, e.g. of flood or hurricane; Forecasting, e.g. risk assessment or mapping
Abstract
The invention relates to the technical field of ocean natural protection, and discloses an electronic fence system of an ocean natural protection land, which comprises the following components: the information acquisition module is used for acquiring video information and radar information in the offshore protection area; the processing module is used for analyzing and processing the video information and the radar information, carrying out safety analysis on the past ships in the protection area according to the analysis and processing result, and formulating an early warning strategy according to the analysis result of the safety analysis; and the early warning module is used for executing an early warning strategy and sending warning signals to corresponding past ships based on a radio frequency transmission mode. According to the invention, a reasonable early warning strategy is formulated according to the result of safety analysis, and the early warning standard is formulated by different states of different types of ships, so that the effective early warning required by protecting the offshore protection area is realized.
Description
Technical Field
The invention relates to the technical field of ocean natural protection, in particular to an electronic fence system of an ocean natural protection area.
Background
Offshore electronic fencing is an advanced technology for protecting marine resources and facilities. It is possible to limit the vessels or objects entering a particular area by deploying high frequency electromagnetic wave devices in the area such that a virtual "fence" is formed between the devices. With the development of global economy and population growth, the development and utilization of marine resources is becoming increasingly important. The offshore electronic fence is used as an emerging technical means, so that an efficient, intelligent and safe ocean management mode can be provided for us, and sustainable utilization of ocean resources and protection of ocean environments are promoted.
The construction of the offshore electronic fence requires the following steps: firstly, determining a target area and a range, such as a port, a fishery resource area and the like, of an electronic fence to be built; then selecting a proper high-frequency electromagnetic wave device according to the size and shape of the target area and range; and (3) carrying out accurate measurement in the target area and making a detailed electronic fence planning scheme. The electronic fence built in the ocean natural protection area is mainly used for protecting the health of the ocean ecological environment in the ocean natural protection area, and specific protection measures are mainly used for limiting the passing ship to enter the non-channel area by sending an early warning signal to the passing ship in the protection area and sailing according to the formulated channel.
The main sources of pollution of ships to sea areas are the discharge of ship sewage and the discharge of ballast water, wherein the pollution of ship sewage to sea water is obvious and usually needs to be discharged at a designated place. The discharge of ballast water of ships is easy to cause the harm of biological invasion, the corresponding ballast water of ships with larger tonnage is more serious, and the pollution is also different in different types of ships, for example, the threat of ships for transporting chemical substances, oil tankers and the like to the environmental safety of sea areas is larger than that of other types of ships, so that different ships in a protection area need to be classified, and the ships possibly with illegal sailing are warned to sail according to regulations. However, in the prior art, early warning is carried out on various ships with unified standards, if the standards are low, a good protection effect on a protection area is not achieved, and if the standards are too high, normal running of the ship is affected.
Disclosure of Invention
The invention aims to provide an electronic fence system of a natural ocean protective land, which solves the following technical problems:
how to enhance the protection effect of the electronic fence on the protection area.
The aim of the invention can be achieved by the following technical scheme:
an electronic fence system for ocean natural protected land, comprising:
the information acquisition module is used for acquiring video information and radar information in the offshore protection area;
the processing module is used for analyzing and processing the video information and the radar information, carrying out safety analysis on the past ships in the protection area according to the analysis and processing result, and formulating an early warning strategy according to the analysis result of the safety analysis;
the early warning module is used for executing an early warning strategy and sending warning signals to corresponding past ships based on a radio frequency transmission mode;
and the communication module is used for sending notification information to coastal base stations and offshore base stations.
As a further technical scheme, the processing module comprises an identification unit, a data analysis unit and a marking unit;
the identifying unit is used for acquiring type information, tonnage information and marking information of the ship according to the video information;
the data analysis unit is used for comprehensively analyzing radar information data, type information data, tonnage information data and mark information data;
the marking unit is used for marking the dangerous ship based on the video information data according to the comprehensive analysis result.
As a further technical solution, the process of acquiring radar information data includes:
acquiring navigation route image data of a target ship, wherein the boundary line of the target ship from a channel area in a protection area is smaller than a preset distance threshold D, based on a radar detector;
and acquiring time-varying data S (t) of the vertical distance between the target ship and the boundary line of the navigation area according to the navigation route image data.
As a further technical scheme, the process of marking the radar information data, the type information data and the tonnage information data with the information data and performing comprehensive analysis includes:
evaluating the risk of environmental pollution caused by the target ship, wherein the evaluation process comprises the following steps:
by formula P risk ＝γ type *β GT *e n Calculating and obtaining risk coefficient P of pollution of target ship to ecological environment of protection area risk ；
Wherein, gamma type The type coefficient corresponding to the target ship; beta GT The total tonnage coefficient corresponding to the target ship; n is the number of times the target vessel is marked;
risk factor P risk And a preset risk threshold P th And (3) comparing:
if P risk ≤P th The safety analysis is not carried out on the target ship;
if P risk ＞P th Then a security analysis is performed on the target vessel.
As a further technical solution, the process of performing security analysis on the target ship includes:
judging the navigation direction of the target ship according to the historical navigation route of the target ship, and if the target ship navigates towards the direction close to the boundary line of the navigation area, performing the following analysis:
by the formulaCalculated to obtain at t i Time of day target vessel entry into non-voyagePredicted time value T in track area pred (t i )；
Wherein S (t) i ) At t i The vertical distance between the target ship and the boundary line of the channel area at the moment; Δt (delta t) 0 Is a preset time error value; f is a preset conversion function;
will predict the time value T pred And a preset threshold T th And (3) comparing:
if T pred (ti)≥T th Then no pre-warning strategy is formulated;
if T pred (ti)＜T th And a warning strategy is formulated for the target ship.
As a further technical scheme, the process of making the early warning strategy is as follows:
W comp (t i )＝ε 1 *(P risk -P th )+ε 2 *[T th -T pred (t i )]
calculating the target ship at t by the formula i Comprehensive reference value W of security threat to protection area at moment comp (t i )；
Wherein ε is 1 ，ε 2 The correlation coefficient is preset;
will integrate the reference value W comp (t i ) And a preset standard value W st And (3) comparing:
if W is comp (t i )≤W st Sending out a warning signal to the target ship;
if W is comp (t i )≤W st And sending a warning signal to the target ship and sending notification information to the coast and the offshore base station through the communication module.
As a further technical solution, the process of marking the dangerous vessel by the marking unit includes:
acquiring vertical component time-varying data V (t) of the sailing speed of the target ship perpendicular to the boundary line of the navigation area based on the radar detector;
the warning signal is sent out at the corresponding time t start To a preset time t max Corresponding time of dayInterval t start ，t max ]Evenly divided into m subintervals;
and comprehensively judging the navigation state of the target ship in the m subintervals, and recording the target ship based on the video information data of the corresponding ship according to the judgment result.
As a further technical scheme, the process of comprehensively judging the sailing states of the target ships in the m subintervals is as follows:
obtaining the maneuverability parameter M of the target ship through calculation according to the formula;
wherein X is j The first weight coefficient corresponding to the jth subinterval; t is t 1 And t 2 The left and right endpoints of the subinterval respectively; v (V) st (t) is a preset standard speed value; deltaV j The error coefficient corresponding to the jth subinterval; mu is a preset second weight coefficient;
the mobility parameter M is compared with a preset threshold M 0 And (3) comparing:
if M is less than 0, not marking the target ship;
if M is E [0, M 0 ]Marking the target ship once;
if M > M 0 The target vessel is marked once and a secondary warning signal is issued.
The invention has the beneficial effects that:
(1) The method can carry out targeted safety analysis on the past ships in the protection area through collecting and analyzing the video information and the radar information in the offshore protection area, and formulate a reasonable early warning strategy according to the result of the safety analysis, wherein the early warning standard is formulated by different states of different types of ships, so that the effective early warning required by protecting the offshore protection area is realized;
(2) According to the invention, the ship with larger pollution risk and poor maneuverability in the protection area is judged as the dangerous ship, and the marked ship is marked, and the marked information is applied to early warning identification judgment, so that the influence factors on the state judgment of the past ship can be continuously updated, the judgment accuracy is improved, and the warning effect on the past ship is realized.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic block diagram of an electronic fence system of a marine natural protected area;
fig. 2 is a schematic block diagram of the processing modules in the electronic fence system of the ocean natural protected area.
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 invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
An electronic fence system for ocean natural protected land, comprising:
the information acquisition module is used for acquiring video information and radar information in the offshore protection area;
the processing module is used for analyzing and processing the video information and the radar information, carrying out safety analysis on the past ships in the protection area according to the analysis and processing result, and formulating an early warning strategy according to the analysis result of the safety analysis;
the early warning module is used for executing an early warning strategy and sending warning signals to corresponding past ships based on a radio frequency transmission mode;
and the communication module is used for sending notification information to coastal base stations and offshore base stations.
Through the technical scheme, the embodiment provides the electronic fence system of the ocean natural protection area, through collecting and analyzing video information and radar information in the ocean protection area, the passing ships in the protection area can be subjected to targeted safety analysis, and a reasonable early warning strategy is formulated according to the result of the safety analysis, and the early warning standard is formulated by different states of different types of ships, so that the effective early warning required by protecting the ocean protection area is realized. In addition, because of the shielding system of some ships, the early warning signal can not be received, at this time, the communication system can send notification information to the coast and the offshore base station, and then the relevant radio frequency equipment of the coast or the base station transmits the early warning signal to the corresponding ship. The system comprises a far infrared video monitoring system which is connected with the existing remote high-definition video and automatic ship identification system (AIS) in a linkage way, so that the video can be monitored in real time, and ship video information can be obtained.
The processing module comprises an identification unit, a data analysis unit and a marking unit;
the identifying unit is used for acquiring type information, tonnage information and marking information of the ship according to the video information;
the data analysis unit is used for comprehensively analyzing radar information data, type information data and tonnage information data according to the marking information data;
the marking unit is used for marking the dangerous ship based on the video information data according to the comprehensive analysis result.
Through the technical scheme, the specific constitution of the processing block is provided, the identification unit can identify the type and tonnage of the ship in the video information and the historical marked information of the corresponding ship, and the actual state of the ship can be reflected in a centralized manner through the various factors. The data analysis unit can comprehensively analyze the radar information data and various information about the target ship, which is acquired through the identification of the identification unit, and the actual state of the target ship is more specifically characterized through analysis processing. The marking unit can then perform marking processing on the analyzed dangerous vessel and does not provide a reference for the next recognition action of the recognition unit.
The radar information data acquisition process comprises the following steps:
based on the navigation route image data of the target ship, which is acquired by the radar detector and has the boundary line of the protected area from the channel area smaller than the preset distance threshold D;
and acquiring time-varying data S (t) of the vertical distance between the target ship and the boundary line of the navigation area according to the navigation route image data.
Through the above technical scheme, the embodiment provides specific contents of radar information data, wherein the set distance threshold D can be obtained by fitting and adjusting experimental data or historical data, and the vertical distance between the target ship and the boundary line of the channel region is the distance corresponding to the shortest path of the ship navigation driving non-channel region.
The process for comprehensively analyzing the radar information data, the type information data, the tonnage information data and the mark information data comprises the following steps:
evaluating the risk of environmental pollution caused by the target ship, wherein the evaluation process comprises the following steps:
by formula P risk ＝γ type *β GT *e n Calculating and obtaining risk coefficient P of pollution of target ship to ecological environment of protection area risk ；
Wherein, gamma type The type coefficient corresponding to the target ship; beta GT The total tonnage coefficient corresponding to the target ship; n is the number of times the target vessel is marked;
risk factor P risk And a preset risk threshold P th And (3) comparing:
if P risk ≤P th The safety analysis is not carried out on the target ship;
if P risk ＞P th Then a security analysis is performed on the target vessel.
Through the above technical solution, the present embodiment provides a data analysis process, specifically, first, through formula P risk ＝γ type *β GT *e n Calculating and obtaining risk coefficient P of pollution of target ship to ecological environment of protection area risk Wherein, gamma type For the type coefficient corresponding to the target ship, the coefficient can be determined according to the probability of pollution and the severity of pollution of the ship, and beta GT Corresponding to the target shipThe total tonnage coefficient is used for directly representing the size of the ship, the larger the ship is, the larger the area of the ship body contacting the water area is, the more serious the pollution is caused by corresponding situations such as oil leakage, and in addition, the larger the ship is, the more the corresponding needed ballast water is, so the probability of biological invasion is also the larger, and the coefficient beta is GT Can be obtained according to experimental fitting according to the above relation; n is the number of times the target vessel is marked, and the marking unit may mark each time the identified vessel is at a high risk, so that the greater the number of times the vessel is marked, the greater the risk thereof. Finally, risk coefficient P risk And a preset risk threshold P th And (3) comparing: when P risk ≤P th The target ship is not easy to pollute the water source, so that the target ship is not subjected to safety analysis; when P risk ＞P th Otherwise, a security analysis of the target vessel is required.
The process of performing security analysis on the target ship includes:
judging the navigation direction of the target ship according to the historical navigation route of the target ship, and if the target ship navigates towards the direction close to the boundary line of the navigation area, performing the following analysis:
by the formulaCalculated to obtain at t i Predicted time value T of moment target ship entering non-channel area pred (t i )；
Wherein S (t) i ) At t i The vertical distance between the target ship and the boundary line of the channel area at the moment; Δt (delta t) 0 Is a preset time error value; f is a preset conversion function;
will predict the time value T pred And a preset threshold T th And (3) comparing:
if T pred (t i )≥T th Then no pre-warning strategy is formulated;
if T pred (t i )＜T th And a warning strategy is formulated for the target ship.
By the aboveAccording to the technical scheme, the embodiment provides a specific process for carrying out safety analysis on the target ship. Firstly, determining a target ship needing targeted analysis, namely judging the sailing direction of the target ship according to the historical sailing route of the target ship in the first few minutes, and if the target ship sails in the direction close to the boundary line of the channel area, performing targeted analysis, specifically, firstly, determining the target ship according to the formulaCalculated to obtain at t i Predicted time value T in non-channel region of time-of-day target ship pred (t i ) Then predict the time value T pred And a preset threshold T th And (3) comparing: when T is pred (ti)≥T th The method has the advantages that the target ship can enter the non-channel area only after the running direction is not changed, and the pre-warning strategy is not required to be formulated to interfere the normal running of the target ship under the condition that whether the direction of the target ship is changed is not determined; when T is pred (t i )＜T th The method has the advantages that the target ship can quickly enter the non-channel area under the condition that the heading of the target ship is not changed, and therefore an early warning strategy needs to be formulated for the target ship. In the above formula, S (t i ) At t i The vertical distance between the target ship and the boundary line of the channel area at the moment, delta t 0 The preset time error value comprises radio frequency information propagation time and information processing time, and can be obtained specifically according to experimental fitting; f is a preset conversion function, and is related to the type of the target ship and sea state, and can be obtained according to experimental fitting.
The early warning principle is that the ship which enters the protection area and does not navigate in the channel and the ship which travels at a speed of less than 6 knots or stays continuously for more than 1 hour along the 500-meter area of the channel accessories; loading an on-line AIS signal in a main interface of the system, wherein a triangle symbol represents the position of the ship, the direction of a triangle top line represents the direction of the ship, and the length of the line represents the speed of the ship, and the faster the speed is, the longer the line is. When the ship is early-warned, the ship is displayed as a solid triangle symbol, and other normal ships are displayed as hollow triangles.
The process of making the early warning strategy is as follows:
W comp (t i )＝ε 1 *(P risk -P th )+ε 2 *[T th -T pred (t i )]
calculating the target ship at t by the formula i Comprehensive reference value W of security threat to protection area at moment comp (t i )；
Wherein ε is 1 ，ε 2 The correlation coefficient is preset;
will integrate the reference value W comp (t i ) And a preset standard value W st And (3) comparing:
if W is comp (t i )≤W st Sending out a warning signal to the target ship;
if W is comp (t i )≤W st And sending a warning signal to the target ship and sending notification information to the coast and the offshore base station through the communication module.
Through the above technical solution, the present embodiment provides a process of making an early warning policy, specifically, through the formula W comp (t i )＝ε 1 *(P risk -P th )+ε 2 *[T th -T pred (t i )]Calculating the target ship at t i Comprehensive reference value W of security threat to protection area at moment comp (t i ) Wherein ε is 1 ，ε 2 For the preset relevance coefficient, the relevance between the characteristic factors and the state factors of the ship and the reference values is represented, the characteristic factors and the state factors can be obtained according to experimental fitting, and then the comprehensive reference value W comp (t i ) And a preset standard value W st And (3) comparing: when W is comp (t i )≤W st When the ship is at a high position, sending out a warning signal to the target ship; when W is comp (t i )≤W st When the method is used, the warning signal is sent to the target ship, and meanwhile, notification information is sent to the coast and the offshore base station through the communication module, on one hand, the warning information is transferred to the target ship through the coast and the radio frequency equipment of the base station, and on the other hand, the method can also notify related law enforcement ships that the target ship is ready for interception.
The process of marking the dangerous vessel by the marking unit comprises the following steps:
acquiring vertical component time-varying data V (t) of the sailing speed of the target ship perpendicular to the lane region boundary line based on the radar detector;
the warning signal is sent out at the corresponding time t start To a preset time t max Corresponding time interval t start ，t max ]Evenly divided into m subintervals;
and comprehensively judging the navigation state of the target ship in the m subintervals, and recording the target ship based on the video information data of the corresponding ship according to the judgment result.
The process for comprehensively judging the navigation state of the target ship in the m subintervals comprises the following steps:
obtaining the maneuverability parameter M of the target ship through calculation according to the formula;
wherein X is j The first weight coefficient corresponding to the jth subinterval; t is t 1 And t 2 The left and right endpoints of the subinterval respectively; v (V) st (t) is a preset standard speed value; deltaV j The error coefficient corresponding to the jth subinterval; mu is a preset second weight coefficient;
the mobility parameter M is compared with a preset threshold M 0 And (3) comparing:
if M is less than 0, not marking the target ship;
if M is E [0, M 0 ]Marking the target ship once;
if M > M 0 The target vessel is marked once and a secondary warning signal is issued.
Through the technical scheme, the embodiment provides a process of marking the dangerous ship by the marking unit, specifically, firstly, a warning signal is sent out at a corresponding time t start To a preset time t max Corresponding time interval t start ，t max ]Uniformly dividing the ship into m subintervals, comprehensively judging the navigation state of a target ship in the m subintervals, recording the target ship based on video information data of the corresponding ship according to the judging result, and correspondingly completing a series of operations such as signal receiving, braking, steering and the like in each subinterval;
the formula can reflect the efficiency of the target ship completing the series of operations after receiving the warning information, so that the maneuverability of the target ship after sending the warning signal to the target ship can be comprehensively judged. Finally, the mobility parameter M and a preset threshold M are combined 0 And (3) comparing: if M is less than 0, the target ship can quickly respond after receiving the warning signal, so that the target ship is not marked; if M is E [0, M 0 ]Indicating that the ship can not respond quickly due to the factors of old communication equipment, poor maneuverability and the like, so that the target ship is marked once; if M > M 0 It is stated that the target vessel is at risk of not receiving the first warning signal, so that it is necessary to mark the target vessel once and issue a second warning signal at the same time. In the above formula, X j The first weight coefficient corresponding to the jth subinterval can be obtained by fitting according to experimental data, and is adjusted according to historical data; t is t 1 And t 2 The left and right endpoints of the subinterval respectively; v (V) st (t) is a preset standard speed value; deltaV j The error coefficient corresponding to the jth subinterval; μ is a preset second weight coefficient, which can be obtained by fitting experimental data, and will not be described in detail herein.
The processing module can check early warning information in a specified time period, fuzzy search can be performed according to ship names or equipment numbers, a query time period can be set, a query result can be obtained, the position of the ship on a map can be positioned, and alarm information is sent to a slipway terminal in an AIS message mode.
The foregoing describes one embodiment of the present invention in detail, but the description is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the invention. All equivalent changes and modifications within the scope of the present invention are intended to be covered by the present invention.
Claims (5)
1. An electronic fence system for ocean natural protection land, comprising:
the information acquisition module is used for acquiring video information and radar information in the offshore protection area;
the processing module is used for analyzing and processing the video information and the radar information, carrying out safety analysis on the past ships in the protection area according to the analysis and processing result, and formulating an early warning strategy according to the analysis result of the safety analysis;
the early warning module is used for executing an early warning strategy and sending warning signals to corresponding past ships based on a radio frequency transmission mode;
the communication module is used for sending notification information to coastal base stations and offshore base stations;
the processing module comprises an identification unit, a data analysis unit and a marking unit;
the identifying unit is used for acquiring type information, tonnage information and marking information of the ship according to the video information;
the data analysis unit is used for comprehensively analyzing radar information data, type information data and tonnage information data according to the marking information data;
the marking unit is used for marking the dangerous ship based on the video information data according to the comprehensive analysis result;
the radar information data acquisition process comprises the following steps:
acquiring navigation route image data of a target ship, wherein the boundary line of the target ship from a channel area in a protection area is smaller than a preset distance threshold D, based on a radar detector;
acquiring data S (t) of the vertical distance between the target ship and the boundary line of the navigation area along with time according to the navigation route image data;
the process for comprehensively analyzing the radar information data, the type information data, the tonnage information data and the mark information data comprises the following steps:
evaluating the risk of environmental pollution caused by the target ship, wherein the evaluation process comprises the following steps:
by formula P risk ＝γ type *β GT *e n Calculating and obtaining risk coefficient P of pollution of target ship to ecological environment of protection area risk ；
Wherein, gamma type The type coefficient corresponding to the target ship; beta GT The total tonnage coefficient corresponding to the target ship; n is the number of times the target vessel is marked;
risk factor P risk And a preset risk threshold P th And (3) comparing:
if P risk ≤P th The safety analysis is not carried out on the target ship;
if P risk ＞P th Then a security analysis is performed on the target vessel.
2. The system of electronic fencing in a marine natural protected area according to claim 1 wherein the process of performing a security analysis of the target vessel comprises:
judging the navigation direction of the target ship according to the historical navigation route of the target ship, and if the target ship navigates towards the direction close to the boundary line of the navigation area, performing the following analysis:
by the formulaCalculated to obtain at t i Predicted time value T of moment target ship entering non-channel area pred (t i )；
Wherein S (t) i ) At t i The vertical distance between the target ship and the boundary line of the channel area at the moment; Δt (delta t) 0 Is a preset time error value; f is a preset conversion function;
will predict the time value T pred And a preset threshold T th And (3) comparing:
if T pred (t i )≥T th Then no pre-warning strategy is formulated;
if T pred (t i )<T th And a warning strategy is formulated for the target ship.
3. The electronic fence system of the ocean natural protection land according to claim 2, wherein the process of making the early warning strategy is:
W comp (t i )＝ε 1 *(P risk -P th )+ε 2 *[T th -T pred (t i )]
calculating the target ship at t by the formula i Comprehensive reference value W of security threat to protection area at moment comp (t i )；
Wherein ε is 1 ，ε 2 The correlation coefficient is preset;
will integrate the reference value W comp (t i ) And a preset standard value W st And (3) comparing:
if W is comp (t i )≤W st Sending out a warning signal to the target ship;
if W is comp (t i )≤W st And sending a warning signal to the target ship and sending notification information to the coast and the offshore base station through the communication module.
4. An electronic fence system for marine natural protection according to claim 3, characterized in that the process of marking the dangerous vessel by the marking unit comprises:
acquiring vertical component time-varying data V (t) of the sailing speed of the target ship perpendicular to the boundary line of the navigation area based on the radar detector;
the warning signal is sent out at the corresponding time t start To a preset time t max Corresponding time interval t start ，t max ]Evenly divided into m subintervals;
and comprehensively judging the navigation state of the target ship in the m subintervals, and recording the target ship based on the video information data of the corresponding ship according to the judgment result.
5. The electronic fence system of the marine natural protection land according to claim 4, wherein the process of comprehensively judging the sailing state of the target ship in m subintervals is as follows:
obtaining the maneuverability parameter M of the target ship through calculation according to the formula;
wherein X is j The first weight coefficient corresponding to the jth subinterval; t is t 1 And t 2 The left and right endpoints of the subinterval respectively; v (V) st (t) is a preset standard speed value; deltaV j The error coefficient corresponding to the jth subinterval; mu is a preset second weight coefficient;
the mobility parameter M is compared with a preset threshold M 0 And (3) comparing:
if M <0, not marking the target ship;
if M is E [0, M 0 ]Marking the target ship once;
if M > M 0 The target vessel is marked once and a secondary warning signal is issued.
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Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1918593A (en) * | 2004-01-15 | 2007-02-21 | 芝加哥气候交易公司 | Systems and methods for trading emission reductions |
| CA2650357A1 (en) * | 2008-01-21 | 2009-07-21 | Thales Nederland B.V. | Multithreat safety and security system and specification method thereof |
| KR20120133590A (en) * | 2011-05-31 | 2012-12-11 | 삼성중공업 주식회사 | System and Method for coping with pirate, and Recordable Medium storing program to implement the method |
| CN103038795A (en) * | 2009-12-24 | 2013-04-10 | 旅行者保险公司 | Risk assessment and control, insurance premium determinations, and other applications using busyness |
| CA2819412A1 (en) * | 2012-06-22 | 2013-12-22 | Keith Harring | Cargo tracking and monitoring system |
| KR101421707B1 (en) * | 2013-04-22 | 2014-07-22 | 주식회사 지앤아이 | Systm for testing ARPA algorithm using target information setted by user |
| CN110409397A (en) * | 2019-08-02 | 2019-11-05 | 上海振华重工(集团)股份有限公司 | A kind of self-elevating drilling platform safety management system |
| CN111599130A (en) * | 2020-04-28 | 2020-08-28 | 国家海洋局南海预报中心(国家海洋局广州海洋预报台) | Environmental risk early warning system for marine rescue |
| CN111882926A (en) * | 2020-06-08 | 2020-11-03 | 交通运输部南海航海保障中心 | Early warning system for offshore wind farm |
| KR20210060120A (en) * | 2019-11-18 | 2021-05-26 | 올시데이터 주식회사 | Method for evaluating asset value of ships based on big data analyses |
| CN112904328A (en) * | 2021-01-18 | 2021-06-04 | 安徽瞭望科技有限公司 | Radar photoelectric tracking early warning system and early warning method for offshore wind farm |
| CN114510783A (en) * | 2022-01-25 | 2022-05-17 | 中船航海科技有限责任公司 | Narrow water channel navigation safety assessment method based on meteorological hydrographic environment information |
| CN116580313A (en) * | 2023-03-31 | 2023-08-11 | 数字太空(北京)科技股份公司 | Abnormal ship identification method and device based on digital twin and remote sensing |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6822573B2 (en) * | 2002-01-18 | 2004-11-23 | Intelligent Mechatronic Systems Inc. | Drowsiness detection system |
-
2023
- 2023-08-31 CN CN202311122982.7A patent/CN117037400B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1918593A (en) * | 2004-01-15 | 2007-02-21 | 芝加哥气候交易公司 | Systems and methods for trading emission reductions |
| CA2650357A1 (en) * | 2008-01-21 | 2009-07-21 | Thales Nederland B.V. | Multithreat safety and security system and specification method thereof |
| CN103038795A (en) * | 2009-12-24 | 2013-04-10 | 旅行者保险公司 | Risk assessment and control, insurance premium determinations, and other applications using busyness |
| KR20120133590A (en) * | 2011-05-31 | 2012-12-11 | 삼성중공업 주식회사 | System and Method for coping with pirate, and Recordable Medium storing program to implement the method |
| CA2819412A1 (en) * | 2012-06-22 | 2013-12-22 | Keith Harring | Cargo tracking and monitoring system |
| KR101421707B1 (en) * | 2013-04-22 | 2014-07-22 | 주식회사 지앤아이 | Systm for testing ARPA algorithm using target information setted by user |
| CN110409397A (en) * | 2019-08-02 | 2019-11-05 | 上海振华重工(集团)股份有限公司 | A kind of self-elevating drilling platform safety management system |
| KR20210060120A (en) * | 2019-11-18 | 2021-05-26 | 올시데이터 주식회사 | Method for evaluating asset value of ships based on big data analyses |
| CN111599130A (en) * | 2020-04-28 | 2020-08-28 | 国家海洋局南海预报中心(国家海洋局广州海洋预报台) | Environmental risk early warning system for marine rescue |
| CN111882926A (en) * | 2020-06-08 | 2020-11-03 | 交通运输部南海航海保障中心 | Early warning system for offshore wind farm |
| CN112904328A (en) * | 2021-01-18 | 2021-06-04 | 安徽瞭望科技有限公司 | Radar photoelectric tracking early warning system and early warning method for offshore wind farm |
| CN114510783A (en) * | 2022-01-25 | 2022-05-17 | 中船航海科技有限责任公司 | Narrow water channel navigation safety assessment method based on meteorological hydrographic environment information |
| CN116580313A (en) * | 2023-03-31 | 2023-08-11 | 数字太空(北京)科技股份公司 | Abnormal ship identification method and device based on digital twin and remote sensing |
Non-Patent Citations (2)
| Title |
|---|
| 刘钊 ; 齐磊 ; 梁茂晗 ; 刘文 ; 李欢欢.《 数据驱动的船舶异常行为识别方法》.《中国航海》.2022,全文. * |
| 王贤涛 ; 焦玉会 ; 韩晓宝.《2011—2021年中国沿海船舶碰撞事故规律分析和对策研究》.《航海技术》.2023,全文. * |
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