CN116168498B - Offshore wind farm ship intrusion identification and warning method and system - Google Patents
Offshore wind farm ship intrusion identification and warning method and systemInfo
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- CN116168498B CN116168498B CN202310248427.2A CN202310248427A CN116168498B CN 116168498 B CN116168498 B CN 116168498B CN 202310248427 A CN202310248427 A CN 202310248427A CN 116168498 B CN116168498 B CN 116168498B
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
- G08B13/189—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
- G08B13/194—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems
- G08B13/196—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems using television cameras
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
- B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
- G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
- G08B25/10—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using wireless transmission systems
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- Business, Economics & Management (AREA)
- Architecture (AREA)
- Computer Networks & Wireless Communication (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
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Abstract
The application discloses a marine wind farm ship intrusion recognition early warning method and system, wherein the method comprises the steps of configuring a server and configuring a mobile monitoring device capable of maneuvering in a designated water area, the configuring server comprises the steps of receiving video/image data uploaded by the mobile monitoring device, performing image recognition to obtain a recognition result and returning the recognition result, configuring the mobile monitoring device comprises the steps of executing shooting fixing action if a designated water unit exists in the recognition result, searching a preset database according to the recognition result to obtain the size of the water unit, calculating the pixel size of a real-time shot water unit image, solving an image scale, calculating the estimated distance between the mobile monitoring device and the water unit based on the image scale, sending early warning information to the designated terminal through the server if the estimated distance is larger than a preset following threshold value, and controlling the mobile monitoring device to approach the designated water unit to send fishing interference information. The application can help staff to improve the invasion management effect of the offshore wind power plant.
Description
Technical Field
The application relates to the technical field of maintenance of offshore wind farms, in particular to a marine wind farm ship intrusion recognition and early warning method and system.
Background
In recent years, the development of the offshore wind power in China is rapid, the newly-increased installed capacity is continuously realized for years, the world is first, and the offshore wind power is developed at high speed and related accidents of the offshore wind power are frequent. The existing offshore wind farm accidents comprise fan accidents, offshore booster station accidents, construction accidents, operation and maintenance accidents, cable accidents and the like.
Part of human factors causing the accidents are that after the offshore wind farm is built, the wind power foundation becomes an offshore fish reef due to the structural characteristics of the wind power foundation, and the wind power foundation attracts fish shoals to gather. Part of fishermen and fishermen catch fish and fish near the offshore wind power plant for the benefit, and fishing boats and the like are easy to strike the foundation and damage the paint protective coating of the foundation, and simultaneously, the fishing boats are anchored near the foundation, so that the sea cable is easy to be anchored. However, manual monitoring of the sea area near a wind farm is labor intensive, difficult, and is subject to weeping.
At present, related enterprises consider that the ship automatic identification AIS technology is applied to intrusion early warning of sea areas near wind power plants, but:
for partial fishing boats, the automatic control system has illegal shutdown behaviors, and a few small ships are not selected to install AIS equipment, and monitoring omission still exists, so that the automatic control system provides a new technical scheme.
Disclosure of Invention
In order to improve the intrusion management effect of an offshore wind farm, the application provides a marine wind farm ship intrusion recognition and early warning method and system.
In a first aspect, the application provides a marine wind farm ship intrusion recognition and early warning method, which adopts the following technical scheme:
a marine wind farm ship intrusion recognition and early warning method comprises the following steps:
step one, establishing a monitoring foundation, which comprises the following steps:
a plurality of mobile monitoring devices integrating wireless communication, water area maneuver, real-time picture acquisition, satellite positioning and fishing interference information release are configured and distributed to a designated water area;
Building a site server in an offshore wind farm, and establishing data connection between the server and a mobile monitoring device;
Establishing a ship intrusion response mechanism, which comprises a configuration server and a configuration mobile monitoring device, wherein the configuration server comprises:
Receiving positioning data uploaded by a mobile monitoring device, and calibrating the positioning data on a preset wind power plant electronic map to generate a base map;
Updating a monitoring area of the mobile monitoring device on the base map based on a predefined device monitoring range to generate a patrol map;
Monitoring a patrol diagram based on preset patrol scheduling logic, and sending a maneuvering instruction to control the mobile monitoring device to adjust the position;
Receiving video/image data uploaded by the mobile monitoring device for image recognition, obtaining a recognition result and returning the recognition result;
The configuration mobile monitoring device comprises:
receiving the identification result, if the identification result indicates that the water unit exists, executing shooting fixing action, and searching a preset database according to the identification result to obtain the size of the water unit;
calculating the pixel size of a unit image on water shot in real time, and calculating an image scale according to the size of the unit on water;
Calculating the estimated distance between the mobile monitoring device and the water unit based on the image scale;
if the estimated distance is greater than the preset following threshold, sending early warning information to the appointed terminal through the server, controlling the mobile monitoring device to approach the appointed water unit, and sending out fishing interference information.
Optionally, the mobile monitoring device is provided with an interference unit which is thrown into water through a rope, and the rope is controlled to be retracted and released through an automatic rope winder;
the configuration mobile monitoring device further includes:
receiving a time correction instruction and correcting time, wherein the time comprises a date and 24-hour time;
acquiring the current time and recording the current time as a condition parameter;
Searching a preset database based on the condition parameters to obtain current active fish population information of the current water area;
And identifying whether pre-stored fish suitable for fishing or economic fishing exists in the current active fish population information, and if so, executing an interference throwing process.
Optionally, the executing the interference delivery procedure includes:
searching a preset database according to the current suitable fish or economic fishing fish to obtain matched active water depth data of the fish shoal;
The automatic rope winder is put in the interference unit, and the release length of the rope is determined according to the data of the active water depth of the fish shoal.
Optionally, the patrol scheduling logic includes:
Judging whether each mobile monitoring device actively approaches to a water unit, if not, adding monitoring point spacing monitoring, wherein the monitoring point monitoring comprises:
calculating the distance between any two mobile monitoring devices based on the patrol diagram;
if the distance is smaller than the preset optimized distance, one mobile device moves towards the direction away from the other mobile device, and the closer to the center of the patrol diagram, the lower the movement priority is.
Optionally, the configuration server further includes:
taking T1 as an interference prevention duration;
if the video/image data uploaded by two or more mobile monitoring devices in the time period T1 are identified to have the appointed water units and the feature comparison similarity exceeds the similarity threshold, executing single following logic;
The single follow logic includes a mobile monitoring device that later monitors a specified water unit to keep silent.
Optionally, the identification result comprises a ship model and a bow characteristic;
the single follower logic, comprising:
if a plurality of mobile monitoring devices find the water units of invasion at the same time, the following steps are:
estimating the ship course based on the bow characteristics;
predicting the ship position based on the estimated distance between the mobile monitoring device and the water unit;
predicting an intrusion position after the time length T2 according to the ship position and the ship heading;
calculating a real-time tracking distance between the intrusion point and a mobile monitoring device for monitoring the ship;
And the mobile monitoring device with the minimum real-time tracking distance is determined to follow the current water unit.
In a second aspect, the application provides a marine wind farm ship intrusion recognition and early warning system, which adopts the following technical scheme:
An offshore wind farm vessel intrusion identification pre-warning system, comprising:
The mobile monitoring device integrates wireless communication, water area maneuver, real-time picture acquisition, satellite positioning and fishing interference information release, is arranged in a designated water area, and
The server establishes data connection with the mobile monitoring device;
Wherein the server is configured to:
Receiving positioning data uploaded by a mobile monitoring device, and calibrating the positioning data on a preset wind power plant electronic map to generate a base map;
Updating a monitoring area of the mobile monitoring device on the base map based on a predefined device monitoring range to generate a patrol map;
Monitoring a patrol diagram based on preset patrol scheduling logic, and sending a maneuvering instruction to control the mobile monitoring device to adjust the position;
Receiving video/image data uploaded by the mobile monitoring device for image recognition, obtaining a recognition result and returning the recognition result;
the mobile monitoring device is configured to:
receiving the identification result, if the identification result indicates that the water unit exists, executing shooting fixing action, and searching a preset database according to the identification result to obtain the size of the water unit;
calculating the pixel size of a unit image on water shot in real time, and calculating an image scale according to the size of the unit on water;
Calculating the estimated distance between the mobile monitoring device and the water unit based on the image scale;
And if the estimated distance is greater than the preset following threshold, controlling the mobile monitoring device to approach the appointed water unit, and sending out fishing interference information.
In summary, the method has the advantages that the method is characterized in that a mobile monitoring device which can maneuver in a designated water area is used for defending, an invasive water level unit is found based on real-time images collected by the mobile monitoring device, after the invasive water level unit is determined, early warning information is sent to a designated terminal, the mobile monitoring device follows and approaches to evidence collection, meanwhile, fishing interference information can be released to guide and drive a fishing boat and the like away from a wind farm, and at the moment, the wind farm actively discovers the invasive boat and does not have continuous monitoring, so that the invasion management effect of the offshore wind farm is better.
Drawings
FIG. 1 is a schematic illustration of the main flow of the method of the present application;
FIG. 2 is a schematic diagram of the main structure of the device of the present application;
FIG. 3 is a schematic diagram of the control architecture of the apparatus of the present application;
fig. 4 is another schematic structural view of the device of the present application.
The reference numerals indicate 1, a water platform, 11, a cabin body, 111, a throwing pipe, 12, an upper frame body, 13, a camera module, 14, a distance sensing unit, 2, an interference unit, 3, a throwing action module, 31, an automatic rope winder, 32, an upper air pipe, 33, a blowing unit, 34, a lateral air pipe, 4, a general control module and 5, a solar battery.
Detailed Description
The application is described in further detail below with reference to fig. 1-4.
The embodiment of the application discloses a marine wind farm ship intrusion recognition and early warning method.
Referring to fig. 1, the marine wind farm ship intrusion recognition and early warning method comprises the following steps:
step one, establishing a monitoring foundation, which comprises the following steps:
a plurality of mobile monitoring devices integrating wireless communication, water area maneuver, real-time picture acquisition, satellite positioning and fishing interference information release are configured and distributed to a designated water area;
Building a site server in an offshore wind farm, and establishing data connection between the server and a mobile monitoring device;
and establishing a ship intrusion response mechanism, wherein the ship intrusion response mechanism comprises a configuration server and a configuration mobile monitoring device.
The following explanation will be given to the matters related to the first step and the second step, respectively, and it is helpful to understand the method considering the features of the mobile monitoring device, so the mobile monitoring device will be specifically explained first.
With reference to fig. 2 and 3, the mobile monitoring device comprises a water platform 1, a power unit, an interference unit 2, a throwing action module 3, a general control module 4 and a power supply module.
The water platform 1 is a comprehensive integrated platform, and the shell material of the water platform can refer to a buoy, so that the water platform has certain corrosion resistance to meet the requirements of offshore operation. The water platform 1 collects environmental information in a nearby planning range (a user-defined device monitoring range), generates positioning data and floats in a designated water area to serve as a carrier, and a power unit, an interference unit 2, a throwing action module 3, a master control module 4 and a power supply module are all arranged on the water platform 1 and are powered by the power supply module.
When the device is used, the master control module 4 is used as a control core of the device, is in communication connection with a server serving as a site, performs data interaction, and is used as a control power unit to drive the water platform 1 to follow a specified water unit, controls the throwing action module to release the interference unit 2, and controls the interference unit 2 to send out fishing interference information.
The above is explained in detail below.
In one embodiment of the present apparatus, the above-mentioned water platform 1 includes a cabin 11, an upper frame 12, a camera module 13, and a positioning module.
The cabin 11 is divided into an upper part and a lower part, the upper part is columnar, a mounting cavity is formed inside the upper part, an electrical component such as the master control module 4 is arranged in the cavity, the mounting cavity is at least provided with an opening, and the opening seals and fixes the cabin door. The lower part of the cabin 11 is funnel-shaped, hollow and is not communicated with the installation cavity, and the cavity at the lower part of the cabin 11 is called a water sump.
The upper frame 12 is fixed to the upper surface of the cabin 11, like a four-foot round stool structure, with the upper portions of the four feet being close to each other. The camera module 13 is mounted on the top of the upper frame 12 to obtain a better shooting height and a larger shooting angle.
It should be noted that, in order to protect the camera module 13, the probability of damaging the camera module 13 when the water platform 1 is tilted is reduced, and a protection ring is formed around the top of the upper frame 12 by a connecting rod.
Because the use of this device is to the certain dependence of image (follow-up content explanation), and the unavoidable existence of when aquatic platform 1 is placed in the sea area near wind turbine generator system platform rocks, the better top of last support body 12 of this reason installs the stabilizer, and the stabilizer selects to hold cloud platform, shooting cloud platform class, can make shooting module 13 reduce shooting shake can to guarantee later stage to the effect of utilizing of image.
The camera module 13, i.e. the camera, in this embodiment is preferably of the type having night vision and capable of 180 ° circumferential rotation. The night vision function is used for meeting 24-hour monitoring requirements, and 180-degree steering is used for reducing the rotation requirement of the water platform 1, so that the camera shooting rotation meets circumferential monitoring. The camera module 13 is connected to the master control module 4.
It can be understood that the device is not used alone when used in the sea, but a plurality of cooperations form a large-area monitoring area, and the camera is not necessarily continuously rotated in the circumferential direction in practice, and more is the angle when the target is shot.
The main body of the positioning module, namely the Beidou positioning module and the GPS positioning module, is arranged at the upper part of the cabin 11, and if the antenna is configured, the antenna is arranged at the top of the cabin 11. The positioning module is connected to the master control module 4.
In one embodiment of the present application, the water tank is divided into an equipment area and other areas in a sealed structure, and the delivery motion module 3 includes an automatic rope reel and a tank internal pressure balancing mechanism.
Wherein, the automatic rope winder 31 is connected to the master control module 4, which may be an electric rope reel, and the motor is arranged in the equipment area, and the rope reel structure is positioned at the top of the water sump and is close to the central axis of the cabin body 11. The interference unit 2 is bound and fixed at the free end of the rope end of the automatic rope winder 31, falls down by gravity, and is retracted by the winding action of the automatic rope winder 31, so as to realize the retraction and release actions of the interference unit 2.
In one embodiment of the present application, the interference unit 2 includes a column and an acoustic/optical interference device embedded and installed on the column, where the acoustic/optical interference device is connected to the master control module 4, and may be, for example, a lamp or an acoustic wave generator (probe, main body has a cabin 11). A delivery pipe 111 is formed in the center of the bottom of the cabin 11, and the upper end of the delivery pipe 111 is communicated with a water sump of the cabin 11. The columnar body is matched with the inner diameter of the delivery pipe 111, and is separated from the delivery pipe 111 to enter water when in use. The wires of the acoustic/optical disrupter are bundled, braided, embedded in the hauling rope of the automatic rope winder 31.
In order to guide the interfering unit 2 when it is recovered, the lower end edge of the delivery pipe 111 is provided to be flared outwardly to guide the interfering unit 2 by means of an outwardly flared edge.
Referring to fig. 4, in one embodiment of the present application, the above-described in-bin pressure balancing mechanism includes:
at least two upper air pipes 32 are arranged on the upper part of the cabin body 11 in a penetrating way, and the lower ends of the upper air pipes extend into the water sump;
if the blower unit 33 is hidden in the cabin 11 and installed, the air outlet pipeline of the blower unit passes through the top surface of the cabin 11 upwards and then bends downwards;
A side air pipe 34 which penetrates the side part of the cabin 11 and one end of which is communicated with the water sump, one end of the water is downwards introduced.
Assuming that the number of the upper air pipes 32 is two, a check valve is installed at the upper end of one upper air pipe 32, and an electromagnetic valve is installed at the upper end of the other upper air pipe 32 and then communicates with the air supply port of the blower unit 33.
The blower unit 33 and the solenoid valve are connected to the main control module 4, respectively.
The plurality of side air pipes 34 are uniformly distributed around the lower part of the cabin 11, and the side air pipes 34 are also provided with electromagnetic valves which are also connected with the master control module 4 for control.
For the application, the cabin internal pressure balancing mechanism has a plurality of characteristics for matching with other constituent elements, and the following is combined with the description of the use process:
1) When the disturbing work is required, the automatic rope reel 31 unwinds the traction rope, and the disturbing unit 2 falls down along the delivery pipe 111 under the action of gravity and out of the cabin 11 until reaching a prescribed depth. And then the master control module 4 controls the interference unit 2 to work so as to release interference information to interfere the fish shoal in the sea.
It should be noted that the drooping interference unit 2 is swayed under the influence of the flow direction of the seawater after entering the water, and can interfere the stability of the device main body, so that the master control module 4 opens the electromagnetic valve of one path of the air blowing unit 33 and opens the electromagnetic valve of the side air pipe 34 to enable the seawater to be filled into the water bin, and the gravity center offset influence of the drooping interference unit 2 is reduced by using the seawater to balance the cabin body 11, thereby enhancing the stability.
2) When the interference operation is not needed any more, the automatic rope reel 31 is used for collecting the traction rope, the interference unit 2 is pulled to retract the throwing tube 111, and the lower end of the interference unit is stopped in the upper port of the throwing tube 111.
It should be noted that, when the disturbing unit 2 is recovered, besides the disturbing unit 2 needs to stop working, the water sump of the cabin 11 needs to be emptied, specifically, the master control module 4 controls the blower unit 33 to feed air into the water sump, and the air is used for discharging the seawater from the throwing pipe 111 or the side air pipe 34.
When the interference unit 2 returns to the standby state, the electromagnetic valve of the side air pipe 34 is closed, and the electromagnetic valve of the other upper air pipe 32 is opened, and in this mode, the air blowing unit 33 continuously feeds air to the water sump, and the air is discharged from the upper air pipe 32, so that the flowing air can air-dry the water sump, and the service life of the device is prolonged.
It will be appreciated that when the air drying action ceases may be a timed control or may be determined by configuring the humidity sensor to detect. When the air drying action is finished, the solenoid valves of the side air duct 34 and the upper air duct 32 are closed. In order to ensure the dryness of the sump, the lower end of the column-shaped body of the interference unit 2 is preferably provided with a sealing ring.
In one embodiment of the application, the power supply module of the device comprises a storage battery and a solar battery 5, wherein the storage battery is arranged in a cabin 11 and is used as a main power supply unit, a plurality of solar batteries 5 are fixed around an upper frame 12 and are connected with the storage battery through a matched controller so as to charge the storage battery by utilizing solar energy, and the cruising ability of the device is improved.
It is understood that the storage battery can be realized by establishing a wireless charging station in the sea area of the wind power plant based on the current wireless charging technology background besides manual periodic charging.
In one embodiment of the application, the power unit can be composed of the same electric propeller as the current unmanned ship, and is connected with the master control module 4 to control the movement of the water platform 1.
It should be noted that, in order to better meet the following and monitoring requirements of the device on the water unit, the steering of the power unit is not realized by using a traditional rudder, but is realized by two symmetrical electric propellers, and the two propellers are not in a right-over mode, but are splayed or parallel in overlooking mode, so that the rapid steering is realized by utilizing the differential speed of the two propellers.
In one embodiment of the present application, the master control module 4 (i.e., a control circuit board integrated with a processor, a memory, a conversion circuit, a driving controller, etc.) performs data interaction with the server through a configured communication unit (GPRS, etc.), and at the same time, the server establishes a connection with a terminal of the established shore-based master control center through a communication facility, so as to implement intrusion early warning and shore-based supervision functions.
The video/image of the appointed water area collected by the camera module 13 is transmitted to a server, and the server performs image recognition to obtain a recognition result. The identification mainly refers to ship identification, such as marine ship target classification detection based on YOLOv and SORT, and the server is loaded with corresponding software when in use.
In the present application, the master control module 4 is configured to:
1) And receiving the identification result of the data acquired by the camera module 13 by the server.
The identification result comprises the types of element features, the types of ship features and the integrity of the features in the image.
2) If the identification result indicates that the water unit exists, the camera module 13 shoots and fixes the water unit, and searches a preset database according to the identification result to obtain the size of the water unit;
the water unit is designated as a ship in the present application.
Regarding shooting fixation, any image is known to have a center, and the ship characteristic elements in the image are always positioned in the center of the image, namely the shooting fixation. The implementation means can be that the characteristic is right-shifted in the image, the camera is adjusted to the right once by the minimum rotation amount, and the adjustment is continuously carried out for a plurality of times until the condition is met.
The data base is used for storing the actual size data of various ships and matching ships, and the size data at least comprises the length, the width or the height of the ship.
3) And calculating the pixel size of the unit image on water shot in real time, and calculating an image scale according to the size of the unit on water.
One key point of image recognition is known to be the calibration and extraction of the outline of the target feature, and at the same time, any position in the image has corresponding pixel coordinates, so that the pixel size of the unit on water can be obtained.
Assuming that the target ship is an A-type fishing ship, the actual size is 100m, and the pixel size is 100p of the characteristic outline pixel length, and the image scale is 1m/p.
4) And calculating the estimated distance between the water platform 1 and the water unit based on the image scale.
It will be appreciated that, with the photographing lens unchanged, the dimensions of the ship features are different in one image scale for each of taking one a-ship from a position of 300m and one a-ship from a position of 100 m.
Thus, the estimated distance between the water platform 1 and the water unit can be obtained by searching the scale-space relation table obtained by verification in the database based on the image scale obtained in the step 3).
It should be noted that if the image capturing module is variable, the change of the shooting parameter needs to be added to correct in the above process, for example, the parameter is added correspondingly to the scale when the image capturing is amplified by 20 times.
5) And if the estimated distance is greater than the preset following threshold, controlling the power unit to drive the water platform to approach the appointed water unit.
In the embodiment, the following threshold is preferably 20m-35m, so that the following threshold effectively follows, the safety of evidence taking and interference implementation is ensured, and the fishing personnel can be prevented from damaging equipment deliberately to a certain extent.
In one embodiment of the device, the following is provided for the consideration that when the water platform 1 approaches the vessel to a certain distance there is no full representation of the complete vessel profile in the image:
The above-water platform 1 further comprises a distance sensing unit 14, wherein the distance sensing unit 14 can select an ultrasonic sensor, a laser ranging sensor and the like, and is fixed on the camera module 13 (the side of the lens and the top) so as to ensure the direction of the ship by means of the shooting following function. The distance sensing unit 14 is connected to the master control module 4.
Correspondingly, the master control module 4 is configured to:
1) If the identification result is judged to be the incomplete water unit, the distance sensing unit is awakened, the distance detection value fed back by the distance sensing unit is received, and the calculation of the image scale is stopped.
It can be understood that in order to save energy, a sleep standby mode is often adopted in the electronic equipment, and the device is powered by a non-trailing cable, so that a sleep design is relatively necessary to prolong the cruising ability of the device.
2) And if the distance detection value is larger than the preset following threshold value, controlling the power unit to drive the water platform 1 to approach the appointed water unit.
3) And if the distance detection value is smaller than the risk threshold value, controlling the power unit to drive the water platform 1 to be far away from the appointed water unit.
The risk threshold, in this embodiment, refers to the collision risk threshold, which may be 5m instead of 0, and after all, the water platform 1 needs a buffer distance for turning braking.
According to the above arrangement, the present device automatically employs the closely adapted distance sensing unit 14 for a following function when the captured image is insufficient to encompass the entire ship contour.
In one embodiment of the method, based on the characteristics of the mobile monitoring device, the configuration server in the second step includes:
1) And receiving the positioning data uploaded by the mobile monitoring device, and calibrating on a preset electronic map of the wind power plant to generate a base map.
It can be understood that the map is an electronic map with dot matrix distribution, each mobile monitoring device is calibrated on the base map in the form of dots, and the dot positions on the electronic map correspondingly change along with the position transition of the mobile monitoring device.
2) Updating the monitoring area of the mobile monitoring device on the base map based on the predefined device monitoring range to generate a patrol diagram.
Based on the above-mentioned characteristics of the mobile monitoring device, the camera is used to collect environmental information, so that in theory, the camera can shoot very far targets, however, after any target exceeds a certain range, the target is relatively blurred, and the collected image is difficult to be used for the subsequent water level unit identification, so that a user is required to select a moderate stable shooting range, namely a monitoring range, according to the suggestion provided by a manufacturer.
3) And monitoring the patrol diagram based on a preset patrol scheduling logic, and sending a maneuvering instruction to control the mobile monitoring device to adjust the position.
Regarding patrol dispatch logic, it includes:
Judging whether each mobile monitoring device actively approaches a water unit, if so, ending, and if not, adding monitoring point spacing monitoring, wherein the monitoring point monitoring comprises:
calculating the distance between any two mobile monitoring devices based on the patrol diagram, namely calculating the distance between any two marking points on the electronic map;
If the distance is smaller than the optimized distance preset by the user, one mobile device is moved towards the direction away from the other mobile device until the distance exceeds the optimized distance and the closer to the center of the patrol diagram, the lower the movement priority is.
The arrangement of the patrol scheduling logic can avoid the influence of wind waves and ocean currents on the whole wind farm from being too close to each other when the mobile monitoring devices float on the sea surface, and the arrangement of the priority is realized in such a way that when the two mobile monitoring devices are determined that the distance is smaller than the optimized distance, the mobile monitoring devices closer to the center of the defense distribution diagram are enabled to be silent, and the other mobile monitoring device is enabled to be powered on and away from the periphery.
The maneuvering optimal mode is mainly used for avoiding that after the inner side mobile monitoring device maneuvers, the linkage drives excessive other mobile monitoring devices to adjust positions.
It should be noted that for any mobile monitoring device, the staff should define the maximum maneuver boundary to prevent the mobile monitoring device from losing power due to being too far from the charging station. Similarly, in severe weather such as storm, the system can be set to send a return site instruction and uniformly move to a safe area to avoid losing risks.
4) And receiving the video/image data uploaded by the mobile monitoring device for image recognition, obtaining a recognition result and returning the recognition result.
Correspondingly, the configuration mobile monitoring device in the second step includes:
1) And receiving the identification result, if the identification result indicates that the water unit exists, executing shooting fixing action, and searching a preset database according to the identification result to obtain the size of the water unit.
2) Calculating the pixel size of a unit image on water shot in real time, and calculating an image scale according to the size of the unit on water;
3) Calculating the estimated distance between the mobile monitoring device and the water unit based on the image scale;
4) If the estimated distance is larger than the preset following threshold, sending early warning information to the appointed terminal through the server, controlling the mobile monitoring device to approach the appointed water unit, and sending out fishing interference information.
The foregoing is already described in the mobile monitoring device, and thus will not be described in detail.
In one embodiment of the application, the delivery of the interfering unit 2 is not started after the mobile monitoring device approaches the water unit to a specified certain preset distance, but the mobile monitoring device is configured to:
receiving (user input) a time correction instruction, and correcting time, wherein the time comprises a date and a 24-hour moment;
acquiring the current time and recording the current time as a condition parameter;
Searching a preset database based on the condition parameters to obtain current active fish population information of the current water area;
And identifying whether pre-stored information of the current active fish population exists for fishing proper fishes or economic fishes, if so, executing an interference putting flow, and if not, not performing interference behaviors.
It is known that fish shoals have different habits and living sea areas, and particularly that mobile fish shoals are not fixed in a certain area, but are carried to wind farms for capturing corresponding fish by fishing boats and fishing persons. Through the above, when the current sea area evaluation is considered unsuitable for fishing and fishing, only the abutting evidence is adopted, and the interference is not performed blindly, so that the energy consumption is reduced.
Regarding the above-described interference delivery flow, specifically:
searching a preset database according to the current suitable fish or economic fishing fish to obtain matched active water depth data of the fish shoal;
The automatic rope winder 31 is made to put in the interference unit 2, and the rope release length is determined according to the data of the active water depth of the fish shoal, for example, if the active water depth of the fish shoal is 10-15m, the put-in depth of the interference unit 2 is 12m, and a specific put-in scheme is prestored in a storage unit of the device to wait for calling.
For the automatic rope reel 31, it is known that it is driven by a motor, so that the length of the rope to be paid down can be controlled by controlling the amount of rotation of the motor. According to the living water layer position of the fish school, the interference unit 2 is released directionally, so that the interference effect can be effectively improved.
In one embodiment of the application, the method also considers that a plurality of mobile monitoring devices discover the influence caused by the invasion of the ship successively and simultaneously, and specifically, the method comprises the steps of configuring a server to:
Taking T1 as an interference prevention duration, wherein T1 can be 10min;
if the video/image data uploaded by two or more mobile monitoring devices within the time period T1 are identified to have the appointed water units and the feature comparison similarity exceeds the preset similarity threshold, executing the single following logic.
The feature comparison is image comparison, but does not refer to original image comparison, but refers to comparison of ships extracted in the image recognition process, such as contour comparison.
The single follow logic includes a mobile monitoring device that later monitors a specified water unit to keep silent.
According to the above, the problems of oversized monitoring loopholes and resource waste caused by the fact that a plurality of mobile monitoring devices repeatedly follow the water unit can be prevented.
The above is aimed at finding the same invasion ship first and then, and when two mobile monitoring devices find the invasion water units at the same time, then:
1) And estimating the ship heading based on the bow features (one of the recognition results).
2) Predicting the ship position based on the estimated distance between the mobile monitoring device and the water unit;
the ship position is estimated by the position of the mobile monitoring device, the estimated distance and the current shooting direction.
3) Predicting the invasion position after the time length T2 (for example, 5 min) according to the ship position and the ship heading;
the above-mentioned ship position+observed change amount per unit time is T2+ ship course, and the intrusion position is estimated.
4) And calculating a real-time tracking distance between the intrusion point and a mobile monitoring device for monitoring the ship.
5) And the mobile monitoring device with the minimum real-time tracking distance is determined to follow the current water unit.
According to the arrangement, on one hand, a plurality of mobile monitoring devices can be prevented from simultaneously following a target ship, and on the other hand, the maneuvering distance is optimized, so that the energy consumption of the mobile monitoring devices can be reduced.
The embodiment of the application also discloses a marine wind farm ship intrusion recognition and early warning system.
The marine wind farm ship intrusion recognition and early warning system comprises a mobile monitoring device and a server.
The setting and effects of the mobile monitoring device and the server are already described in the embodiments of the method, and thus are not described in detail.
In summary, the present application may:
1. Taking the mobile monitoring device as a water monitoring unit, and distributing the protection around the offshore wind turbine generator;
2. The mobile monitoring device is used for collecting pictures on the sea surface in real time, and providing basic data for finding an invading ship by utilizing an image recognition technology;
3. after the intrusion ship is determined, the mobile monitoring device is enabled to follow and obtain evidence, and fishing interference information is generated by throwing the interference unit 2 into the water after fishing and fishing values exist in the fish shoal information analysis of the current sea area;
4. The throwing of the interference unit 2 is directionally throwing according to the information of the perch of the fish and the like, so that the interference effect is improved.
The above embodiments are not intended to limit the scope of the application, so that the equivalent changes of the structure, shape and principle of the application are covered by the scope of the application.
Claims (6)
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| CN119694051B (en) * | 2024-12-04 | 2025-11-18 | 生态环境部南京环境科学研究所 | A monitoring system and method for human interference activities within ecological protection red lines |
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| CN115166742A (en) * | 2022-07-29 | 2022-10-11 | 华融海洋渔业发展股份有限公司 | Radar sea area nursing system and control method thereof |
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