Real-time monitoring system for a stranded ship to get off the shoal

Abstract

The present application provides a kind of stranded ship real-time monitoring system, it is related to shipwreck salvage technical field, including difficult ship state data acquisition unit, signal conversion unit, data wireless transmission unit and data integration processing terminal unit;The difficult ship state data acquisition unit includes GPS positioning equipment, attitude sensor, cabin liquid level monitoring equipment, depth measuring equipment and video monitoring equipment;The GPS positioning equipment includes the antenna and GPS host computer connected, the GPS host computer is electrically connected with signal conversion unit;The attitude sensor is set on the difficult ship body, the attitude sensor is consistent with the heading of difficult ship, the attitude sensor is electrically connected with signal conversion unit;The monitoring equipment technology mature of the present application, simple structure, installation is convenient, high reliability, can be widely popularized in stranded ship out of shallow operation and other fields.

Description

Technical Field

[0001] This invention relates to the field of shipwreck salvage and rescue technology, and more particularly to a real-time monitoring system for the resurfacing of stranded vessels. Background Technology

[0002] Ship grounding is a common maritime accident. After grounding, rapid and efficient resurfacing operations are crucial for minimizing property damage and ensuring unimpeded navigation. For vessels grounded high in the seabed, resurfacing is challenging, often requiring the combined use of various techniques such as compressed air drainage, buoy salvage, and floating crane salvage. A detailed resurfacing route must be designed based on the seabed topography, and the vessel's attitude must be continuously adjusted during the resurfacing process to ensure passage through the shallow point. Therefore, the vessel's position, attitude, and other status information are essential inputs for resurfacing operations. Real-time and accurate acquisition of this information is vital for command and decision-making during the resurfacing process, and can even be the key to the success or failure of the operation.

[0003] The positioning and navigation systems, inclinometers, magnetic compasses, and other status display devices on stranded vessels are typically of low accuracy and suffer from high latency, making real-time display impossible. Especially for most stranded vessels, the loss of power renders their positioning systems inoperable, rendering these devices insufficient for resurfacing operations. Traditional resurfacing operations typically rely on reading the vessel's draft gauges at the bow and stern to determine its attitude, using buoys to pinpoint its location, and manually measuring water levels in the compartments. However, because the vessel's condition changes constantly during resurfacing, traditional monitoring methods are inefficient and lack precision. Therefore, introducing high-precision monitoring equipment is essential for successful vessel resurfacing operations. Summary of the Invention

[0004] This invention provides a real-time monitoring system for grounded vessels to emerge from shallow water, which solves the problems of lagging and low accuracy of existing status monitoring equipment for grounded vessels.

[0005] The technical means employed in this invention are as follows:

[0006] A real-time monitoring system for the resurfacing of grounded vessels includes:

[0007] The distressed vessel status data acquisition unit is used to obtain various status data of the distressed vessel.

[0008] Signal conversion unit used to convert data signals from distressed ships;

[0009] A data wireless transmission unit used to transmit the converted distressed ship data signal;

[0010] A data integration processing terminal unit used to process distressed ship data signals and acquire and display distressed ship information.

[0011] Furthermore, the distressed vessel status data acquisition unit includes a GPS positioning device, an attitude sensor, a compartment liquid level monitoring device, a water depth measuring device, and a video monitoring device; the GPS positioning device includes a connected antenna and a GPS host, and the GPS host is electrically connected to the signal conversion unit; the attitude sensor is installed on the hull of the distressed vessel, and the attitude sensor is oriented in the same direction as the bow of the distressed vessel, and the attitude sensor is electrically connected to the signal conversion unit; the compartment liquid level monitoring device is installed on the top of the compartment where the liquid level needs to be monitored, and the compartment liquid level monitoring device is electrically connected to the signal conversion unit; there are four water depth measuring devices, which are respectively installed on the port and starboard sides of the bow and stern of the distressed vessel, and the water depth measuring devices are electrically connected to the signal conversion unit; the video monitoring device is electrically connected to the signal conversion unit;

[0012] The wireless data transmission unit includes a wireless bridge transmitter and a wireless bridge receiver connected wirelessly. The wireless bridge transmitter is located on the side of the wrecked vessel and is electrically connected to a signal conversion unit. The wireless bridge receiver is located on the side of the construction mother ship and is connected to a data integration and processing terminal unit.

[0013] Furthermore, the number of antennas is two, the direction of the line connecting the two antennas is consistent with the bow direction of the ship, and the positioning signal of the GPS antenna comes from RTK or differential signal from satellite station differential.

[0014] Furthermore, the chamber liquid level monitoring device is a millimeter-wave radar level gauge, which is installed vertically.

[0015] Furthermore, the wireless bridge transmitter and receiver are installed facing each other.

[0016] Furthermore, the GPS positioning device, attitude sensor, cabin liquid level monitoring device, water depth measurement device, video monitoring device, signal conversion unit, and wireless bridge transmitter are all connected to the storage battery.

[0017] Furthermore, the data integration and processing terminal unit includes a display screen.

[0018] Compared with the prior art, the present invention has the following advantages:

[0019] This invention acquires the status data of stranded vessels through high-precision monitoring equipment and transmits it wirelessly to the construction mother ship for technical personnel to refer to, which can significantly improve the scientific nature and success rate of shallowing operations.

[0020] The monitoring equipment used in this invention is technologically mature, simple in structure, easy to install, and highly reliable, and can be widely promoted in fields such as the resurfacing of stranded vessels. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram illustrating the working principle of the present invention.

[0023] Figure 2 This is a schematic diagram of the arrangement of the present invention on a grounded vessel.

[0024] Figure 3 This is a schematic diagram of the layout of the invention on the construction mother ship.

[0025] In the diagram: 1. Distressed vessel status data acquisition unit; 11. GPS positioning device; 111. GPS antenna; 112. GPS host; 12. Attitude sensor; 13. Cabin liquid level monitoring device; 14. Water depth measurement device; 15. Video monitoring device; 2. Signal conversion unit; 3. Wireless data transmission unit; 31. Wireless bridge transmitter; 32. Wireless bridge receiver; 4. Data integration and processing terminal unit; 41. Display screen; 42. Data processing unit; 5. Distressed vessel; 6. Construction mother ship. Detailed Implementation

[0026] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of exemplary embodiments according to the invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0029] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this invention. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0030] For ease of description, spatial relative terms such as "above," "over," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation besides the orientation of the device as described in the figures. For example, if the device in the figures is inverted, a device described as "above" or "above" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0031] See appendix Figure 1-3 A real-time monitoring system for the resurfacing operation of a grounded vessel includes a distressed vessel status data acquisition unit 1, a signal conversion unit 2, a data wireless transmission unit 3, and a data integration and processing terminal unit 4. The distressed vessel status data acquisition unit 1 includes a GPS positioning device 11, an attitude sensor 12, a cabin liquid level monitoring device 13, a water depth measurement device 14, and a video monitoring device 15, used to obtain various status data of the distressed vessel. The above monitoring data is integrated into the signal conversion unit 2, and after conversion, it is transmitted through the wireless transmission system 3 to the data integration and processing terminal 4 arranged on the construction mother vessel 6. The status of the distressed vessel 5 is displayed visually, and the data is connected to post-processing software to obtain information such as the distressed vessel's speed, draft, buoyancy, and grounding force.

[0032] The GPS positioning device 11 acquires the planar coordinates of the distressed vessel 5 through its GPS antenna 111. The heading of the distressed vessel can be obtained through the relative positional relationship of the two GPS antennas 111. The two GPS antennas 111 are fixedly installed in a specific location, approximately 10 meters apart, in an open area to ensure the positioning signal is not obstructed. Their relative positional relationship needs to be determined by measurement and input into the positioning software. The positioning signal source can be RTK or differential signals from satellite stations that meet the accuracy requirements. After signal reception, it is processed by the GPS host 112. The attitude sensor 12 can be an inertial navigation device, capable of acquiring the three-dimensional attitude, heading, and acceleration of the distressed vessel. The heading data can be imported into the data terminal for further processing of the GPS heading data. For the attitude correction, the attitude sensor needs to be fixedly installed, oriented in the same direction as the bow of the distressed vessel. For the initial installation, a total station or other measuring equipment must be used to accurately measure the attitude of the distressed vessel and calibrate the sensor data to eliminate installation errors and ensure that the data output by the attitude sensor matches the data measured by the total station. The compartment liquid level monitoring device 13 uses a millimeter-wave radar level gauge, installed on the top of each compartment requiring liquid level monitoring. The level gauge must be installed vertically to obtain the straight-line distance from the liquid surface to the top of the compartment. The depth measurement device uses a depth sensor, fixedly installed on the port and starboard sides of the distressed vessel, usually four units, installed by divers after the location is determined. Video monitoring equipment is installed in fixed locations as needed to monitor the liquid surface, local structures, etc. All the above data is transmitted via wired connection to the signal conversion unit 2, and then transmitted via network cable to the wireless bridge transmitter 31. The wireless bridge receiver 32 receives the data and transmits it to the data integration terminal 4. The wireless bridge transmitter and receiver are installed on the sides of the distressed vessel and the construction mother ship respectively, facing each other and ensuring there are no obstructions between them.

[0033] All equipment on the distressed vessel can be powered by batteries. For distressed vessels with power supply capabilities, shipboard power can be used, or a mobile generator can be used for power supply.

[0034] In addition to video surveillance equipment, all devices need to obtain precise coordinates in the ship's coordinate system. The relative positions of GPS antenna 111, attitude sensor 12, and liquid level monitoring device 13 are measured using equipment such as a total station. The coordinates of the depth sensor are determined by comparing with the ship's drawings. All device coordinates need to be input into the data integration and processing terminal 4.

[0035] The data integration and processing terminal 4 can obtain the ship's speed by differential analysis of the ship's position data, and obtain the bow and stern draft of the distressed ship by using the depth data and coordinates from the depth sensor. This data and the distressed ship's attitude can be directly displayed in real time on the terminal. Furthermore, the draft and compartment level data can be imported into engineering software such as GHS and MOSES to calculate the distressed ship's weight, buoyancy, settling force, and longitudinal strength, which are also displayed in real time on the screen. All of this data processing is achieved through the data processing unit 42. In addition, the terminal system also imports water depth maps of the area surrounding the distressed ship and its shallowing route, and the shallowing route can be planned in advance in the software. During shallowing, the ship's position is displayed in real time on the water depth map, allowing for monitoring of the ship's trajectory.

[0036] Salvage engineers use data terminals 4 on the mother ship to monitor the status of the distressed vessel and formulate or adjust the next steps of the salvage plan accordingly.

[0037] The monitoring equipment used in this invention is technologically mature, simple in structure, easy to install, and highly reliable. By acquiring the status data of the stranded vessel through high-precision monitoring equipment and transmitting it wirelessly to the construction mother ship for technical personnel to refer to, it can significantly improve the scientific nature and success rate of the shallowing operation.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A real-time monitoring system for the resurrection of stranded vessels, characterized in that, include: The distressed ship status data acquisition unit (1) is used to obtain various status data of the distressed ship. Signal conversion unit (2) used to convert data signals of distressed ships; Data wireless transmission unit (3) used to transmit the converted shipwreck data signal; Data integration processing terminal unit (4) is used to process distressed ship data signals and acquire and display distressed ship information. The distressed vessel status data acquisition unit (1) includes a GPS positioning device (11), an attitude sensor (12), a cabin liquid level monitoring device (13), a water depth measurement device (14), and a video monitoring device (15); the GPS positioning device (11) includes a connected GPS antenna (111) and a GPS host (112), and the GPS host (112) is electrically connected to the signal conversion unit (2); the attitude sensor (12) is installed on the hull of the distressed vessel, and the attitude sensor (12) is oriented in the same direction as the bow of the distressed vessel. The attitude sensor (12) is electrically connected to the signal conversion unit (2); the compartment liquid level monitoring device (13) is installed on the top of the compartment where the liquid level needs to be monitored, and the compartment liquid level monitoring device (13) is electrically connected to the signal conversion unit (2); there are four depth measuring devices (14), which are respectively installed on the port and starboard sides of the bow and stern of the ship, and the depth measuring devices (14) are electrically connected to the signal conversion unit (2); the video monitoring device (15) is electrically connected to the signal conversion unit (2); The number of GPS antennas (111) is two, and the direction of the line connecting the two GPS antennas (111) is consistent with the bow direction of the ship. The positioning signal of the GPS antenna (111) comes from RTK or differential signal of satellite station differential. The wireless data transmission unit (3) includes a wireless bridge transmitter (31) and a wireless bridge receiver (32) connected wirelessly. The wireless bridge transmitter (31) is located on the side of the ship and is electrically connected to the signal conversion unit (2). The wireless bridge receiver (32) is located on the side of the construction mother ship and is connected to the data integration and processing terminal unit (4).

2. The real-time monitoring system for grounded vessels as described in claim 1, characterized in that: The chamber liquid level monitoring device (13) is a millimeter-wave radar liquid level gauge, which is installed vertically.

3. The real-time monitoring system for grounded vessels as described in claim 1, characterized in that: The wireless bridge transmitter (31) and the wireless bridge receiver (32) are installed facing each other.

4. The real-time monitoring system for grounded vessels as described in claim 1, characterized in that: The GPS positioning device (11), attitude sensor (12), cabin liquid level monitoring device (13), water depth measurement device (14), video monitoring device (15), signal conversion unit (2) and wireless bridge transmitter (31) are respectively connected to the storage battery.

5. The real-time monitoring system for grounded vessels as described in claim 1, characterized in that: The data integration and processing terminal unit (4) includes a display screen (41).

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