Safety accident prevention system for vessels entering and departing around port breakwater

Abstract

The present invention relates to a system for preventing safety accidents in the entry and exit of vessels around breakwaters of ports and fishing harbors. More specifically, the system for preventing safety accidents in the entry and exit of vessels around breakwaters according to the present invention comprises: an input unit including a CCTV installed in a breakwater lighthouse that captures a preset vessel recognition area within and outside the harbor centered on the breakwater and generates video information; a control unit installed inside the breakwater lighthouse that receives video information from the input unit, detects vessels within the vessel recognition area within the captured video, detects other objects existing on the entry and exit path of the detected vessels, analyzes collision targets, and predicts collision risks; and an output unit installed in the breakwater lighthouse that receives a warning sound generation signal from the control unit and transmits a warning sound when a collision risk is predicted by the control unit.

Description

Technology Field

[0001] The present invention relates to a system for preventing safety accidents during the entry and exit of vessels around breakwaters in ports and fishing harbors, and more specifically, to a system for preventing safety accidents during the entry and exit of vessels around breakwaters using image recognition that distinguishes and recognizes an object (vessel) located in front of a vessel's travel path and notifies the vessel operator before a collision occurs, thereby enabling the avoidance of an accident. Background Technology

[0002] Recently, due to the increase in climate change and external marine forces (such as sea level rise and high waves), there is a trend of increasing the height of breakwater crests (including the installation of parapets) in ports and fishing harbors, and consequently, the size of external facilities (breakwaters) is increasing.

[0003] Consequently, due to the increase in the height of the breakwater crest, a situation is occurring where ships entering the harbor and small ships departing from behind the breakwater in the harbor cannot recognize each other.

[0004] Meanwhile, Korea first installed a Vessel Traffic Service (VTS) system at Pohang Port in 1993 and operates it at 19 locations nationwide to monitor maritime traffic conditions and provide information to vessels entering and leaving ports and operating in coastal waters, and to prevent maritime accidents caused by deviations from the route, approach to danger zones, and collision risks. However, this is limited to specific vessels, such as vessels engaged in international voyages and vessels with a gross tonnage of 300 tons or more.

[0005] In addition, the Automatic Identification System (AIS) was developed as a tool to prevent collisions between ships, enabling the ship operator to identify each other by determining the location and path of other ships even when other ships cannot be recognized visually. According to the International Maritime Organization (IMO) Ship Safety Act, since 2004, it has been mandatory for ships exceeding a total gross tonnage of 300 gt to install AIS. Although the installation of AIS has been mandatory for domestic fishing vessels since January 2023, there are still many ships, such as some small vessels or leisure boats, that are not equipped with AIS due to economic feasibility issues.

[0006] Although the operation of vessels entering and leaving near breakwaters is managed based on the law, there was a problem in that this was limited to trade ports and excluded from application to coastal ports where domestic fishing vessels usually operate.

[0007] As such, there was a growing demand from the field to present technical and engineering solutions to address the autonomous operation of individual vessels and complement the shortcomings of the legal framework for ship operations. Prior art literature

[0008] Republic of Korea Registered Patent No. 10-2694332 (August 7, 2024) The problem to be solved

[0009] The objective of the present invention is to solve the aforementioned problems and to provide a safety accident prevention system for vessels entering and exiting a breakwater, which prevents collision accidents between two vessels by recognizing the movements of the two vessels via CCTV footage from a breakwater lighthouse and generating a warning alert when the two vessels are operating within a vessel recognition area, thereby preventing casualties and property damage caused by collisions between two vessels entering and exiting a breakwater in a port or fishing port.

[0010] The objectives of the present invention are not limited to those mentioned above, and other unmentioned objectives will be clearly understood by those skilled in the art from the description below. means of solving the problem

[0011] To achieve the above objective, the ship entry and exit safety accident prevention system around a breakwater according to the present invention comprises: an input unit including a CCTV installed in a breakwater lighthouse that captures a preset ship recognition area within and outside the harbor centered on the breakwater and generates image information; a control unit installed inside the breakwater lighthouse that receives image information from the input unit, detects a ship within the ship recognition area in the captured image, detects other objects existing on the entry and exit path of the detected ship, analyzes collision targets, and predicts collision risks; and an output unit installed in the breakwater lighthouse that receives a warning sound generation signal from the control unit and transmits a warning sound when a collision risk is predicted by the control unit.

[0012] In addition, the input unit is characterized by further including a LiDAR sensor for measuring the distance to terrain features and collision targets existing in front.

[0013] In addition, the control unit is characterized by correcting the error in the distance between the vessel and the collision target by reflecting the sensing information measured by the lidar sensor into the collision target information analyzed through the CCTV video.

[0014] In addition, the control unit is characterized by having a storage module installed to store video information from the CCTV and signals acquired from the LiDAR sensor.

[0015] In addition, the control unit is characterized by using machine learning to distinguish whether a vessel collision target is a moving object or a non-moving object when analyzing the vessel collision target.

[0016] In addition, the control unit is characterized by controlling the output unit so that when the collision target is a moving object, a warning sound is output at a distance greater than the collision distance of a non-moving object.

[0017] In addition, the control unit is characterized by including a power module for supplying external power supplied to the breakwater lighthouse to the input unit, the control unit, and the output unit.

[0018] In addition, the control unit further includes a self-generation module for supplying power to the power module through self-generation using solar power, wherein a solar power generation panel is installed on the exterior of the breakwater lighthouse.

[0019] In addition, the control unit further includes a GPS module and a communication module for transmitting the accident location, time, and video to a stored contact when a ship accident occurs within the ship recognition area.

[0020] In addition, the output unit is characterized by further including a warning light to enable a ship operator to recognize a ship collision using light at night. Effects of the invention

[0021] The ship entry and exit safety accident prevention system around a breakwater according to the present invention has the effect of reducing the occurrence of ship collision accidents caused by obstruction of the ship operator's view due to crest height when a ship passes near a breakwater, and reducing social indirect costs by preventing such accidents.

[0022] In addition, the ship entry and exit safety accident prevention system around a breakwater according to the present invention has the effect of reducing the risk of marine pollution, such as oil spills, by preventing ship collision marine accidents, and providing a safe maritime space for ship passage by providing warning messages to both vessels transiting in the shaded area near the breakwater.

[0023] In addition, the vessel entry and exit safety accident prevention system around a breakwater according to the present invention enables the securing of maritime passage safety for small fishing vessels that are excluded from the control targets of VTS (Vessel Traffic Service), and has the effect of overcoming the limitations of existing navigation radars mounted on vessels, which may generate noise due to interference phenomena (radio interference) such as straight-line propagation, reflection, and diffraction caused by breakwaters. Brief explanation of the drawing

[0024] FIG. 1 is a schematic diagram showing a system for preventing safety accidents in the entry and exit of ships around a breakwater according to the present invention. FIG. 2 is a configuration diagram showing an input section that constitutes a system for preventing safety accidents in the entry and exit of ships around a breakwater according to the present invention. FIG. 3 is a diagram showing the operational concept using the ship entry and exit safety accident prevention system around the breakwater according to the present invention. Figure 4 is a diagram showing the operational concept according to the situation of a vessel detected through the vessel entry / exit safety accident prevention system around a breakwater according to the present invention. FIG. 5 is a configuration diagram showing a control unit constituting a system for preventing safety accidents in the entry and exit of ships around a breakwater according to the present invention. FIG. 6 is a configuration diagram showing an output unit that constitutes a system for preventing safety accidents in the entry and exit of ships around a breakwater according to the present invention. Specific details for implementing the invention

[0025] The advantages and features of the present invention and the methods for achieving them will become clear by referring to the embodiments described below in detail together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below but may be implemented in various different forms. These embodiments are provided merely to ensure that the disclosure of the present invention is complete and to fully inform those skilled in the art of the scope of the invention, and the present invention is defined only by the scope of the claims.

[0026] Specific details for implementing the present invention will be described in detail with reference to the drawings attached below. Regardless of the drawings, identical reference numerals refer to identical components, and "and / or" includes each of the mentioned items and all combinations of one or more.

[0027] Although terms such as "first," "second," etc., are used to describe various components, it goes without saying that these components are not limited by these terms. These terms are used merely to distinguish one component from another. Therefore, it goes without saying that the first component mentioned below may be the second component within the technical scope of the present invention.

[0028] The terms used herein are for describing the embodiments and are not intended to limit the invention. In this specification, the singular form includes the plural form unless specifically stated otherwise in the text. As used herein, "comprises" and / or "comprising" do not exclude the presence or addition of one or more other components in addition to the components mentioned.

[0029] Unless otherwise defined, all terms used in this specification (including technical and scientific terms) may be used in a meaning that is commonly understood by those skilled in the art to which the present invention pertains. Additionally, terms defined in commonly used dictionaries are not to be interpreted ideally or excessively unless explicitly and specifically defined otherwise.

[0030] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings.

[0031] FIG. 1 is a schematic diagram showing a system for preventing safety accidents in the entry and exit of ships around a breakwater according to the present invention.

[0032] Referring to FIG. 1, the ship entry / exit safety accident prevention system (10) according to the present invention is characterized by the main technical feature of being able to prevent forward collision accidents through CCTV image recognition when a ship is operating around the breakwater, by including, in addition, an input unit (100) that captures a preset ship recognition area inside and outside the harbor centered on the breakwater, a control unit (200) that stores the captured image and determines whether to output a ship collision warning sound through image analysis, and an output unit (300) that receives a warning sound generation signal from the control unit (200) and generates a warning sound according to the ship collision distance.

[0033] In the following, each component constituting the ship entry / exit safety accident prevention system (10) around the breakwater according to the present invention will be described in more detail.

[0034] FIG. 2 is a configuration diagram showing an input section that constitutes a system for preventing safety accidents in the entry and exit of ships around a breakwater according to the present invention.

[0035] First, the input unit (100) may be configured to photograph a pre-set vessel recognition area inside and outside the harbor centered on the breakwater and to generate image information. At this time, the input unit (100) is configured to include a CCTV camera (110) for photographing the vessel recognition area inside and outside the harbor.

[0036] The above CCTV camera (110) can be installed outside the breakwater lighthouse, and it is preferable to install it on the top of the lighthouse through a separate frame. Through the frame, the operator can freely set and fix the ship recognition area of ​​the CCTV camera (110).

[0037] Of course, the above CCTV camera (110) can be installed in two or more places to film inside and outside the harbor.

[0038] Accordingly, the input unit (100) can generate image information by photographing a ship or various objects existing within a preset ship recognition area or within a range where image shooting is possible, and transmit the acquired image information to the control unit (200).

[0039] In addition, it is desirable that the above CCTV camera (110) be converted to an infrared viewing method so that it can capture images even at night.

[0040] Meanwhile, the input unit (100) may further include a lidar sensor (120) for measuring the distance to terrain features and collision targets existing in front, and the lidar sensor (120) may be installed together with the frame. A detailed description of the lidar sensor (120) will be provided later.

[0041] Next, the control unit (200) is installed inside the breakwater lighthouse and receives image information from the input unit (100), detects a vessel within the vessel recognition area in the captured image, and detects other objects existing on the entry / exit path of the detected vessel to analyze collision targets and predict collision risk.

[0042] At this time, the control unit (200) is configured to detect a ship or an object other than a ship through the contours in the captured image, and is configured to analyze the distance of another object, i.e., a collision target, existing on the entry / exit path of the detected ship through a predefined image processing technique.

[0043] Accordingly, the control unit (200) can predict the level of collision risk between the vessel in operation and the collision target by using the distance to the collision target.

[0044] In addition, the control unit (200) can detect a ship or an object other than a ship through sensing information acquired from the lidar sensor (120), and can be configured to analyze the distance of other objects, i.e., collision targets, existing on the entry / exit path of the detected ship.

[0045] It is preferable that the above control unit (200) controls the output unit (300) so that a warning sound is emitted when a collision target is detected in either the image information of the CCTV camera (110) or the signal acquired from the LiDAR sensor (120).

[0046] Through this, the control unit (200) can compensate through the lidar sensor (120) even if it is not recognized in the image information or if the outline is not clearly detected in the image.

[0047] Meanwhile, the control unit (200) may be configured to correct the error in the distance between the vessel and the collision target by reflecting the sensing information measured through the lidar sensor (120) in the collision target information analyzed through image information.

[0048] That is, the above-mentioned lidar sensor (120) is provided to more clearly determine the distance of a collision target recognized through the CCTV camera (110), and the position and distance of a ship, object, or geographical feature existing in front can be measured through the lidar sensor (120).

[0049] In addition, since the LiDAR sensor (120) can be used even at night, it has the effect of recognizing information about collision targets that are not recognized in the video of the CCTV camera (120).

[0050] Accordingly, the control unit (200) can more accurately determine the location, distance, and direction of the recognized collision target by merging the image information acquired through the CCTV camera (110) and the location and distance information acquired through the LiDAR sensor (120). At this time, the control unit (200) can be configured to collect information transmitted from two or more input units (100) that photograph the ship recognition areas inside and outside the harbor.

[0051] FIG. 3 is a diagram showing the operational concept using the ship entry and exit safety accident prevention system around the breakwater according to the present invention.

[0052] Referring to FIG. 3, the control unit (200) is configured to transmit a control signal to the output unit (300) so that a warning sound can be output from the output unit (300) when the risk of collision of the ship is predicted.

[0053] Additionally, the control unit (200) may be configured to distinguish between a ship, a moving object, and a non-moving object using a machine learning algorithm when analyzing a ship collision target, and may control the output unit (300) so that a warning sound is output from a distance greater than the collision distance of a non-moving object when the collision target is a moving object.

[0054] The above control unit (200) can determine whether a collision target existing in front can move, not just distinguish between a ship and an object, and through this, can predict whether a collision target moving in front can enter the navigation path within the ship recognition area and collide.

[0055] The above control unit (200) can track and predict the current direction of movement of the collision target when the collision target is a moving object, and can track the movement path of the collision target to predict whether it will enter the direction of passage of other vessels.

[0056] Additionally, the control unit (200) may be configured to send a control signal to the output unit (300) to generate a warning sound so that the collision target determined to be a vessel or a movable object can easily move into the navigation path of another vessel and a collision situation may occur, thereby raising the warning level higher than that of a stationary object or a non-moving object, so that the vessel operator can drive at a safe distance.

[0057] Figure 4 is a diagram showing the operational concept according to the situation of a vessel detected through the vessel entry / exit safety accident prevention system around a breakwater according to the present invention.

[0058] To explain with reference to Fig. 4(a), the control unit (200) controls the output unit (300) so that a first warning sound (caution) is generated at a certain distance when it is recognized that the vessel is moving near the navigation path of another vessel ahead, and then controls the output unit (300) so that a second warning sound (warning) is generated when the distance becomes closer.

[0059] As another example, referring to FIG. 4(b), the control unit (200) can control the output unit (300) so that when a non-moving object is determined to be a collision target, the first warning sound is not generated and only the second warning sound is generated.

[0060] FIG. 5 is a configuration diagram showing a control unit constituting a system for preventing safety accidents in the entry and exit of ships around a breakwater according to the present invention.

[0061] Referring to FIG. 5, the control unit (200) may be configured to include a storage module (210) to store image information obtained through a CCTV camera (110) and sensing information obtained through a LiDAR sensor (120).

[0062] The above storage module (210) can be used for black box purposes, and video information can be set to be stored at preset time intervals (e.g., 1 minute).

[0063] Additionally, the control unit (200) is configured to include a power module (220) to supply power to the input unit (100), the control unit (200), and the output unit (300), and the power supply can be configured to be used by connecting it through an external power supply provided to the breakwater lighthouse.

[0064] Meanwhile, in preparation for cases where external power is not supplied to the lighthouse, the control unit (200) may be configured to further include a self-generating module (230).

[0065] The above self-generating module (230) can be configured to enable self-generation using sunlight by installing a solar power generation panel on the outside of the lighthouse.

[0066] Additionally, the control unit (200) may be configured to be connected to the communication module (240) wirelessly or via a wired connection so that data stored in the storage module (210) can be transmitted externally when necessary.

[0067] That is, when a ship accident occurs within the ship recognition area through the communication module (240), the accident location, time, and video can be transmitted to a pre-designated contact to enable a quick response.

[0068] To this end, the control unit (200) is preferably configured to include a GPS module (250) to verify the location of the accident site, and can automatically report to a fire department, etc., as needed, thereby preventing a secondary accident from occurring after the golden time is missed following the accident.

[0069] Next, the output unit (300) is a device for generating a warning sound as a sound (acoustic) by receiving a warning sound generation signal from the control unit (200), and the output unit (300) may be installed at the top of the lighthouse or installed together with the frame of the input unit (100).

[0070] This allows the ship operator to recognize potential collision situations through warning sounds and avoid the collision.

[0071] FIG. 6 is a configuration diagram showing an output unit that constitutes a system for preventing safety accidents in the entry and exit of ships around a breakwater according to the present invention.

[0072] Referring to FIG. 6, the output unit (300) may be configured to include a speaker (310) for generating a warning sound, and may be configured to include a warning light (320) that can guide the operator with sound and light in the case of night, but is not limited thereto, and can be modified and applied in various ways as long as it is a means capable of guiding with sound or light.

[0073] In this case, it is desirable that the vessel be configured so that the operator can easily perceive it even amidst surrounding noise.

[0074] For example, the output unit (300) can continuously output a warning sound once every second so that the first warning sound can be recognized by the ship operator, and if the speed of the ship operating within the ship recognition area decreases, the ship operator can determine that the ship operator has recognized the target of collision of another ship and prevent the first warning sound from being generated.

[0075] In addition, it is desirable that the second warning sound be generated about 2 to 3 times per second, and that the second warning sound be stopped if the vessel's driving speed decreases further or if the object of collision ahead moves out of the vessel recognition area of ​​the CCTV camera (110) and is not recognized, just like the first warning sound.

[0076] The ship entry / exit safety accident prevention system (10) according to the present invention, having the configuration as described above, has the effect of distinguishing and recognizing an object (ship) located in front of the ship's travel path and notifying the ship operator before a collision occurs, thereby guiding the ship operator to avoid the accident in advance.

[0077] Although embodiments of the present invention have been described above with reference to the attached drawings, those skilled in the art will understand that the present invention may be implemented in other specific forms without changing its technical concept or essential features. Therefore, the embodiments described above should be understood as illustrative in all respects and not restrictive. Explanation of the symbols

[0078] 100: Input section 110: CCTV camera 120: LiDAR sensor 200: Control unit 210: Storage module 220: Power module 230: Self-generating module 240: GPS module 250: Communication module 300: Output section 310: Speaker 320: Flashing light

Claims

Claim 1 An input unit including a CCTV installed in a breakwater lighthouse that captures a preset vessel recognition area within and outside the harbor centered on the breakwater and generates video information; a control unit installed inside the breakwater lighthouse that receives video information from the input unit, detects a vessel within the vessel recognition area in the captured video, detects other objects existing on the entry / exit path of the detected vessel, analyzes collision targets, and predicts collision risks; and an output unit installed in the breakwater lighthouse that, when a collision risk is predicted by the control unit, receives a warning sound generation signal from the control unit and transmits a warning sound. Claim 2 A system for preventing safety accidents in the entry and exit of ships around a breakwater, characterized in that, in claim 1, the input unit further includes a LiDAR sensor for measuring the distance to a terrain feature and a collision target existing in front. Claim 3 In paragraph 2, the control unit is characterized by correcting the error in the distance between the vessel and the collision target by reflecting the sensing information measured through the lidar sensor into the collision target information analyzed through CCTV video. Claim 4 In paragraph 2, the control unit is characterized by having a storage module installed to store video information from a CCTV and signals acquired from a LiDAR sensor, in a system for preventing safety accidents in the entry and exit of ships around a breakwater. Claim 5 A system for preventing safety accidents in the entry and exit of ships around a breakwater, characterized in that, in claim 1, the control unit distinguishes whether a ship collision target is a moving body or a non-moving body using machine learning when analyzing the ship collision target. Claim 6 In claim 5, the control unit controls the output unit so that when the collision target is a moving body, a warning sound is output at a distance greater than the collision distance of a non-moving body, characterized in that the system for preventing safety accidents in the entry and exit of ships around a breakwater. Claim 7 A system for preventing safety accidents in the entry and exit of ships around a breakwater, characterized in that, in claim 1, the control unit comprises a power module for supplying power to the input unit, the control unit, and the output unit from an external power source supplied to the breakwater lighthouse. Claim 8 A system for preventing safety accidents in the entry and exit of ships around a breakwater, characterized in that, in claim 7, the control unit further includes a self-generation module for supplying power to the power module through self-generation using solar power, wherein a solar power generation panel is installed outside the breakwater lighthouse. Claim 9 A system for preventing safety accidents in the entry and exit of ships around a breakwater, characterized in that, in the first aspect, the control unit further includes a GPS module and a communication module for transmitting the accident location, time, and video to a stored contact when a ship accident occurs within a ship recognition area. Claim 10 A system for preventing safety accidents in the entry and exit of ships around a breakwater, characterized in that, in the first paragraph, the output unit further includes a warning light to enable a ship operator to recognize a ship collision using light at night.

Images