CN112634658A - Acousto-optic early warning method and system for safety supervision of offshore wind farm - Google Patents
Acousto-optic early warning method and system for safety supervision of offshore wind farm Download PDFInfo
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- CN112634658A CN112634658A CN202011502370.7A CN202011502370A CN112634658A CN 112634658 A CN112634658 A CN 112634658A CN 202011502370 A CN202011502370 A CN 202011502370A CN 112634658 A CN112634658 A CN 112634658A
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Abstract
The invention relates to the technical field of ship early warning, in particular to an acousto-optic early warning method and an acousto-optic early warning system for safety supervision of an offshore wind farm, which comprise the following steps: dividing an offshore wind farm and an adjacent water area thereof into a tracking area, a warning area and a wind farm water area, and tracking and positioning ships in the adjacent water area of the offshore wind farm in all weather by using a multi-view vision-based method through taking a visible light-infrared fusion camera on the wind farm as monitoring equipment; when the condition that the ship enters the tracking area is monitored, the monitoring device continuously tracks, when the ship exits the tracking area, the tracking is stopped, and when the ship enters the warning area, a signal is sent to start the acousto-optic early warning device at the corresponding position. The invention divides the offshore wind farm and the adjacent water area thereof into a tracking area, a warning area and a wind farm water area, tracks and positions the ship which enters the offshore wind farm adjacent water area by mistake, and warns and dissuades the ship when necessary so as to ensure the safe operation of the offshore wind farm and the navigation safety of the passing ship.
Description
Technical Field
The invention relates to the technical field of ship early warning, in particular to an acousto-optic early warning method and an acousto-optic early warning system for safety supervision of an offshore wind farm.
Background
With the proposal of carbon neutralization in 2060, the national demand for clean energy is sharply increased, and wind power generation is increasingly regarded as a renewable clean energy. Offshore wind power generation is a major force of wind power generation, and has advantages of high power generation efficiency, stable power generation and the like compared with onshore wind power generation, so that offshore wind power plants are increased gradually. Although the offshore wind farm is fully researched before construction and construction, and the site selection in a water area with larger navigation flow is avoided as much as possible, most of the electric fields are inevitably built near the navigation water area, so that the risk of the collision of a fan caused by the fact that a ship enters the water area of the wind farm by mistake exists. Therefore, an acousto-optic early warning method and system for safety supervision of offshore wind farms are provided.
Disclosure of Invention
The invention aims to provide an acousto-optic early warning method and an acousto-optic early warning system for safety supervision of an offshore wind farm, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: an acousto-optic early warning method for safety supervision of an offshore wind farm comprises the following steps:
s1, dividing an offshore wind farm and an adjacent water area thereof into a tracking area, a warning area and a wind farm water area, and tracking and positioning ships in the adjacent water area of the offshore wind farm all the day by using a multi-view vision-based method through taking a visible light-infrared fusion camera on the wind farm as monitoring equipment;
s2, transmitting a monitoring picture of the monitoring equipment to a shore-based monitoring platform in real time through a base station on the offshore booster station, and sending a signal to start the acousto-optic early warning equipment at the corresponding position when the shore-based monitoring platform judges that the acousto-optic early warning equipment is necessary to be started;
and S3, when the condition that the ship enters the tracking area is monitored, the monitoring equipment continuously tracks, when the ship exits the tracking area, the tracking is stopped, and when the ship enters the warning area, a signal is sent to start the acousto-optic early warning equipment at the corresponding position.
Preferably, in step S1, two visible light-infrared fusion cameras are installed on the wind turbine every 1km to 1.5km, so as to ensure that the monitoring range can cover the whole offshore wind farm and the adjacent water area.
Preferably, the calculation process of the ship positioning in step S1 is as follows:
according to the visual positioning principle, the distance between a ship and a wind power plant is as follows:
d＝x2-x1
wherein: b is the camera spacing; f is the focal length of the camera; d is parallax; x is the number of1And x2The abscissa of the imaging point in a camera coordinate system; z is the depth distance; pixelsize is the pixel size; h is the height from the camera to the sea surface, namely the height of the fan; l is the distance between the ship and the wind field; after the distance between the ship and the wind field is calculated, the distance is compared with the radius of the tracking area and the warning area, and the position of the ship can be judged.
Preferably, the visible light-infrared fusion camera monitors the ship by using an infrared module at night.
Preferably, the visible light-infrared fusion camera consists of a visible light camera and an infrared camera.
Preferably, the acousto-optic early warning device is installed on the fan, and the fan is further provided with a gateway for triggering the acousto-optic early warning device.
Preferably, the shore-based supervision platform in step S2 dissuades the ship through a megaphone, and the megaphone is disposed on the fan or the unmanned aerial vehicle.
An acousto-optic early warning system for safety supervision of an offshore wind farm comprises a fan installation device, a booster station installation device and a shore-based installation device;
the fan installation equipment comprises a visible light-infrared fusion camera for tracking and positioning ships in a water area adjacent to the offshore wind farm, acousto-optic early warning equipment for warning and a gateway for triggering the acousto-optic early warning equipment;
the booster station installation equipment comprises a main control module and a video transmission base station for transmitting signals in real time; the shore-based installation equipment comprises a shore-based supervision platform which monitors in real time and issues early warning instructions;
the visible light-infrared fusion camera transmits video information to the shore-based supervision platform sequentially through the gateway and the base station, the shore-based supervision platform sends the early warning instruction to the main control module, and the main control module triggers the acousto-optic early warning equipment through the gateway.
Compared with the prior art, the invention has the beneficial effects that: the invention divides the offshore wind farm and the adjacent water area thereof into a tracking area, a warning area and a wind farm water area, tracks and positions the ship which enters the offshore wind farm adjacent water area by mistake, and warns and dissuades the ship when necessary so as to ensure the safe operation of the offshore wind farm and the navigation safety of the passing ship. The acousto-optic early warning method has the advantages of large coverage range, no limitation of low visibility conditions such as night and the like, timely early warning and the like, and has great significance for safe operation of an offshore wind farm and safe navigation of passing ships.
Drawings
FIG. 1 is a flow chart of the present invention;
FIG. 2 is a block diagram of the system of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a technical scheme that: a sound and light early warning method for offshore wind farm safety supervision comprises a visible light-infrared fusion camera for ship positioning and night ship monitoring, sound and light early warning equipment for early warning, a gateway for triggering the sound and light early warning equipment, a base station for transmitting real-time video signals, a shore-based supervision platform for wind farm safety supervision, a multi-view vision positioning method for offshore wind farms and a sound and light early warning method for offshore wind farm water areas.
As shown in fig. 1, the specific steps are as follows:
s1, dividing an offshore wind farm and an adjacent water area thereof into a tracking area, a warning area and a wind farm water area, and tracking and positioning ships in the adjacent water area of the offshore wind farm all the day by using a multi-view vision-based method through taking a visible light-infrared fusion camera on the wind farm as monitoring equipment; the visible light-infrared fusion camera monitors the ship by using an infrared module at night. The acousto-optic early warning equipment is installed on the fan, and a gateway used for triggering the acousto-optic early warning equipment is also installed on the fan. The visible light-infrared fusion camera consists of a visible light camera and an infrared camera.
Two visible light-infrared fusion cameras are arranged on a fan of the wind power plant every 1km-1.5km, so that the monitoring range can cover the whole offshore wind power plant and the adjacent water area thereof.
The calculation process of the ship positioning is as follows:
according to the visual positioning principle, the distance between a ship and a wind power plant is as follows:
d＝x2-x1
wherein: b is the camera spacing; f is the focal length of the camera; d is parallax; x is the number of1And x2The method comprises the following steps of (1) taking the abscissa of an imaging point in a camera coordinate system, z being a depth distance, pixel size being pixel size, h being the height of a camera from the sea surface, namely the height of a fan, and l being the distance of a ship from a wind field; after the distance between the ship and the wind field is calculated, the distance is compared with the radius of the tracking area and the warning area, and the position of the ship can be judged.
S2, transmitting a monitoring picture of the monitoring equipment to a shore-based monitoring platform in real time through a base station on the offshore booster station, when the shore-based monitoring platform judges that the acousto-optic early warning equipment is necessary to be started, the necessary condition can be that a ship drives to a wind field at a higher speed or is close to the wind field, whether an alarm is given out can be determined according to a worker of the shore-based monitoring platform, whether an alarm threshold value is reached can also be judged through the shore-based monitoring platform, and when the alarm information is required to be given out, the acousto-optic early warning equipment at a corresponding position is started by sending a signal; the shore-based supervision platform dissuades boats and ships through the megaphone, and the megaphone sets up on the fan or unmanned aerial vehicle.
And S3, when the condition that the ship enters the tracking area is monitored, the monitoring equipment continuously tracks, when the ship exits the tracking area, the tracking is stopped, and when the ship enters the warning area, a signal is sent to start the acousto-optic early warning equipment at the corresponding position.
The visible light-infrared fusion camera can adopt the combination of the existing visible light camera and the existing infrared camera, and also can adopt a wireless intelligent infrared camera which transmits infrared thermal image data to mobile intelligent equipment for display, fusion with visible light images, superposition and intelligent analysis temperature measurement. (for example, a visible light-infrared fusion camera is provided in patent No. CN 203590319U)
As shown in fig. 2, an acousto-optic early warning system for safety supervision of an offshore wind farm comprises a fan installation device, a booster station installation device and a shore-based installation device;
the fan installation equipment comprises a visible light-infrared fusion camera for tracking and positioning ships in a water area adjacent to the offshore wind farm, acousto-optic early warning equipment for warning and a gateway for triggering the acousto-optic early warning equipment;
the booster station installation equipment comprises a main control module and a video transmission base station for transmitting signals in real time; the shore-based installation equipment comprises a shore-based supervision platform which monitors in real time and issues early warning instructions;
the visible light-infrared fusion camera transmits video information to the shore-based supervision platform sequentially through the gateway and the base station, the shore-based supervision platform sends the early warning instruction to the main control module, and the main control module triggers the acousto-optic early warning equipment through the gateway.
The invention is mainly applied to the safety supervision of the offshore wind farm water area. The offshore wind farm and the adjacent water area thereof are divided into a tracking area, a warning area and a wind farm water area, ships which enter the offshore wind farm and are adjacent to the water area are tracked and positioned, and warning and dissuading are carried out if necessary, so that the safe operation of the offshore wind farm and the navigation safety of passing ships are guaranteed.
The invention divides the offshore wind farm and the adjacent water area thereof into a tracking area, a warning area and a wind farm water area, tracks and positions the ship which enters the offshore wind farm adjacent water area by mistake, and warns and dissuades the ship when necessary so as to ensure the safe operation of the offshore wind farm and the navigation safety of the passing ship. The acousto-optic early warning method has the advantages of large coverage range, no limitation of low visibility conditions such as night and the like, timely early warning and the like, and has great significance for safe operation of an offshore wind farm and safe navigation of passing ships.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. An acousto-optic early warning method for safety supervision of an offshore wind farm is characterized by comprising the following steps: the method comprises the following steps:
s1, dividing an offshore wind farm and an adjacent water area thereof into a tracking area, a warning area and a wind farm water area, and tracking and positioning ships in the adjacent water area of the offshore wind farm all the day by using a multi-view vision-based method through taking a visible light-infrared fusion camera on the wind farm as monitoring equipment;
s2, transmitting a monitoring picture of the monitoring equipment to a shore-based monitoring platform in real time through a base station on the offshore booster station, and sending a signal to start the acousto-optic early warning equipment at the corresponding position when the shore-based monitoring platform judges that the acousto-optic early warning equipment is necessary to be started;
and S3, when the condition that the ship enters the tracking area is monitored, the monitoring equipment continuously tracks, when the ship exits the tracking area, the tracking is stopped, and when the ship enters the warning area, a signal is sent to start the acousto-optic early warning equipment at the corresponding position.
2. The acousto-optic early warning method for safety supervision of offshore wind farms according to claim 1, characterized in that: in the step S1, two visible light-infrared fusion cameras are arranged on the wind turbine every 1km-1.5km to ensure that the monitoring range can cover the whole offshore wind turbine and the adjacent water area.
3. The acousto-optic early warning method for safety supervision of offshore wind farms according to claim 1, characterized in that: the calculation process of the ship positioning in step S1 is as follows:
according to the visual positioning principle, the distance between a ship and a wind power plant is as follows:
d＝x2-x1
wherein: b is the camera spacing; f is the focal length of the camera; d is parallax; x is the number of1And x2The abscissa of the imaging point in a camera coordinate system; z is the depth distance; pixelsize is the pixel size; h is the height from the camera to the sea surface, namely the height of the fan; l is the distance between the ship and the wind field; after the distance between the ship and the wind field is calculated, the distance is compared with the radius of the tracking area and the warning area, and the position of the ship can be judged.
4. The acousto-optic early warning method for safety supervision of offshore wind farms according to claim 1, characterized in that: the visible light-infrared fusion camera monitors the ship by using an infrared module at night.
5. The acousto-optic early warning method for safety supervision of offshore wind farms according to claim 1 or 4, characterized in that: the visible light-infrared fusion camera consists of a visible light camera and an infrared camera.
6. The acousto-optic early warning method for safety supervision of offshore wind farms according to claim 1, characterized in that: the acousto-optic early warning equipment is installed on the fan, and a gateway used for triggering the acousto-optic early warning equipment is further installed on the fan.
7. The acousto-optic early warning method for safety supervision of offshore wind farms according to claim 1, characterized in that: and the shore-based supervision platform in the step S2 counsels the ship through a megaphone, and the megaphone is arranged on a fan or an unmanned aerial vehicle.
8. The utility model provides a reputation early warning system towards offshore wind farm safety supervision which characterized in that: the system comprises fan installation equipment, booster station installation equipment and shore-based installation equipment;
the fan installation equipment comprises a visible light-infrared fusion camera for tracking and positioning ships in a water area adjacent to the offshore wind farm, acousto-optic early warning equipment for warning and a gateway for triggering the acousto-optic early warning equipment;
the booster station installation equipment comprises a main control module and a video transmission base station for transmitting signals in real time; the shore-based installation equipment comprises a shore-based supervision platform which monitors in real time and issues early warning instructions;
the visible light-infrared fusion camera transmits video information to the shore-based supervision platform sequentially through the gateway and the base station, the shore-based supervision platform sends the early warning instruction to the main control module, and the main control module triggers the acousto-optic early warning equipment through the gateway.
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| CN202011502370.7A CN112634658A (en) | 2020-12-18 | 2020-12-18 | Acousto-optic early warning method and system for safety supervision of offshore wind farm |
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Application publication date: 20210409 |