A real-time measurement system and method for ship landing and dock

Abstract

The present application relates to the field of ship technology, and more specifically, to a real-time measurement system, method and dock for ship landing. A measuring head lifting mechanism includes a base and a measuring head seat movably assembled on the base. The base is fixed at a target position in the dock. In the XYZ three-dimensional space coordinate system, the measuring head seat can be lifted and lowered relative to the base in the Z direction; an X measuring head, a Y measuring head and a Z measuring head are arranged on the measuring head seat; the real-time measurement system for ship landing also includes an X measuring target and a Y measuring target. In the real-time measurement system for ship landing of the present application, by arranging measuring heads in multiple directions in the dock, the position of the ship can be measured in real time, and the position of the ship can be calibrated in time according to the measurement results during the process of ship landing. During the measurement process, there is no need to manually adjust the aiming of the measuring tool, and the measurement can be performed in real time, with higher measurement efficiency and landing accuracy, which solves the technical problem that the current ship landing method cannot perform real-time measurement.

Description

Technical Field

[0001] The present application relates to the field of ship technology, and in particular to a real-time measurement system and method for ship landing, and a dock. Background Art

[0002] The descriptions in this section merely provide background information related to the present disclosure and may not constitute prior art.

[0003] When a ship is landing in a dock, it must adjust its position to the target position while it is floating, so that as the water level in the dock drops, the ship can match the dock layout in both the X and Y directions and accurately sit on the dock. Figure 1 As shown, a target 100 is set at a certain height position on the middle guide rail at the bow and stern ends of the ship. Two target points 100 are set. The theoretical coordinate data (x, y, z) of the target point 100 are obtained through theoretical calculation and analysis. Two total stations 200 corresponding to the bow and stern target points are arranged on the platform next to the dock. The total station 200 is used to measure the target point 100 and obtain the actual coordinate data (X, Y, Z). By comparing the theoretical data with the actual data, the ship's position is adjusted.

[0004] As the water level drops, the coordinates of the target point will also change. The total station needs to be manually adjusted to aim at the target point before measuring, so data measurement cannot be performed in real time. Since a single total station can only measure the coordinate data of a single target point, the data export and conversion process is cumbersome, the data visibility is not high, and the data comparison is inconvenient, which makes it inconvenient for on-site production personnel to analyze the data in real time and adjust the ship position. Summary of the invention

[0005] The purpose of the embodiments of the present application is to provide a real-time measurement system for ship landing on a pier, which is used to solve the technical problems that the current method of ship landing on a pier cannot be measured in real time and the landing accuracy is low; in addition, the purpose of the embodiments of the present application is also to provide a real-time measurement method for ship landing on a pier.

[0006] Another object of an embodiment of the present application is to provide a dock using the above-mentioned real-time measurement system for ship landing.

[0007] In a first aspect, a real-time measurement system for a ship landing is provided, comprising:

[0008] The measuring head lifting mechanism includes a base and a measuring head seat movably assembled on the base. The base is fixed at a target position in the dock. In an XYZ three-dimensional space coordinate system, the measuring head seat can be lifted and lowered in a Z direction relative to the base.

[0009] The measuring head seat is provided with an X measuring head, a Y measuring head and a Z measuring head;

[0010] The real-time measurement system for ship landing also includes an X measurement target and a Y measurement target. Both the X measurement target and the Y measurement target are measurement plates welded on the outside of the ship bottom plate. The X measurement target and the Y measurement target are used to be fixed at the target position on the outside of the ship bottom plate.

[0011] The X measuring head is used to measure the distance to the X measuring target along the X direction when the X measuring target is fixed on the ship. The Y measuring head is used to measure the distance to the Y measuring target along the Y direction when the Y measuring target is fixed on the ship. The Z measuring head is used to measure the distance to the outer side of the bottom plate of the ship along the Z direction. The relative position of the ship and the dock pier in the dock is determined by the measurement results of the X measuring head, the Y measuring head and the Z measuring head.

[0012] The data processing and control module can obtain the data of each measuring head and send the ship position information according to the data of the measuring head; the data processing and control module is connected with the measuring head lifting mechanism, and the data processing and control module can control the lifting and lowering of the measuring head seat of the measuring head lifting mechanism according to the measuring data of the Z measuring head when the ship floats down, so that the X measuring target is within the measuring range of the X measuring head, and the Y measuring target is within the measuring range of the Y measuring head.

[0013] In a possible implementation, at least one of the X measuring head, the Y measuring head, and the Z measuring head is a laser measuring head.

[0014] In a possible implementation, the measuring head lifting mechanism is a hydraulic cylinder, a cylinder body of the hydraulic cylinder constitutes the base, and a piston rod of the hydraulic cylinder constitutes the measuring head seat.

[0015] In a possible implementation, at least two measuring head lifting mechanisms are provided.

[0016] In a possible implementation, the real-time measurement system for ship landing includes a data display module, which is connected to the data processing and control module to display processed data.

[0017] In a possible implementation, the real-time measurement system for ship landing includes a data transmission module, which is connected to each measuring head to transmit the measurement data to the data processing and control module via wire.

[0018] In the second aspect, a dock is also provided, comprising a pier arranged at the bottom of the dock and a real-time measurement system for a ship landing on the pier arranged in the dock, characterized in that the real-time measurement system for a ship landing on the pier is the real-time measurement system for a ship landing on the pier as described in any possible implementation scheme of the first aspect.

[0019] In a third aspect, a real-time measurement method for a ship landing on a pier is also provided, using the real-time measurement system for a ship landing on a pier as described in any embodiment of the first aspect, comprising the following steps:

[0020] 1) Install the measuring head lifting mechanism at the target landing position in the dock, and install the X measuring target and Y measuring target on the outer side of the ship bottom plate;

[0021] 2) Roughly locate the floating ship at the target landing position, and adjust the position of the measuring head base according to the measurement value of the Z measuring head, so that the X measuring target is within the measuring range of the X measuring head, and the Y measuring target is within the measuring range of the Y measuring head;

[0022] 3) Adjust the position of the ship according to the measurement data of the X measuring head, Y measuring head and Z measuring head;

[0023] 4) After the ship is adjusted into position, the water in the dock is drained, and the measuring head seat is lowered along with the ship according to the measurement value of the Z measuring head. At the same time, the X measuring target is always within the measuring range of the X measuring head during the lowering process of the measuring head seat, and the Y measuring target is always within the measuring range of the Y measuring head during the lowering process of the measuring head seat, until the ship completes the landing at the target landing position.

[0024] In a possible implementation, step 2) further includes releasing water into the dock to float the ship on the dock pier beside the target docking position until the bottom of the X measurement target and the Y measurement target are higher than the top of the dock pier, and then operating the ship to move the ship to the target docking position.

[0025] The real-time measurement system for ship landing on the pier in the present application has the following beneficial effects: in the real-time measurement system for ship landing on the pier in the present application, by setting measuring heads in multiple directions in the dock, the position of the ship can be measured in real time, and the position of the ship can be timely calibrated according to the measurement results during the ship landing on the pier. There is no need to manually adjust the aiming of the measuring tool during the measurement process, and real-time measurement is possible, with higher measurement efficiency. Due to real-time measurement, the accuracy of pier landing can be improved, and the accuracy of pier landing is higher, which solves the technical problems that the current method of ship landing on the pier cannot be measured in real time and the accuracy of pier landing is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 It is a schematic diagram of a method for landing a ship on a pier in the prior art;

[0028] Figure 2 This is a front view (schematic) of a real-time measurement system for ship landing after installation according to an embodiment of the present application;

[0029] Figure 3A top view (schematic) of a real-time measurement system for ship landing after installation according to an embodiment of the present application;

[0030] Figure 4 A side view (schematic) of a real-time measurement system for ship landing after installation according to an embodiment of the present application; (FR8X and FR12X in the figure represent the position numbers of the ship in the length direction)

[0031] Figure 5 A flow chart of adjusting the position of a ship using a real-time measurement system for ship landing according to an embodiment of the present application;

[0032] Figure 6 It is a schematic diagram of the distance between a real-time measurement system for ship landing and a ship in the X direction according to an embodiment of the present application;

[0033] Figure 7 It is a schematic diagram of the distance between a real-time measurement system for ship landing and a ship in the Z direction according to an embodiment of the present application;

[0034] Figure 8 It is a schematic diagram of the distance between a real-time measurement system for ship landing and a ship in the Y direction according to an embodiment of the present application;

[0035] Fig. 9 This is a schematic diagram of information transmission in a real-time measurement system for ship landing according to an embodiment of the present application;

[0036] Fig.10 A diagram of the steps of landing a ship in a real-time measurement system for landing a ship according to an embodiment of the present application;

[0037] Figure 1 Medium: 100, target; 200, total station;

[0038] Figures 2 to 8 Middle: 1. Measuring head lifting mechanism; 11. Base; 12. Measuring head seat; 2. X measuring head; 3. Y measuring head; 4. Z measuring head; 5. X measuring target; 6. Y measuring target; 7. Dock; 8. Ship. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0040] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0041] According to the first aspect of the present application, a real-time measurement system for ship landing is first provided. Figure 2 It is a front view (schematic) of a real-time measurement system for a ship landing on a pier according to an embodiment of the present application.

[0042] Figures 2 to 10 The port side refers to the port side of the ship, the starboard side refers to the starboard side of the ship, the bottom refers to the bottom plate of the ship, the bow end refers to the front end of the ship, and the stern end refers to the rear end of the ship.

[0043] A real-time measurement system for a ship landing comprises a measuring head lifting mechanism 1, wherein the measuring head lifting mechanism 1 comprises a base 11 and a measuring head seat 12 movably mounted on the base 11, wherein the base 11 is fixed at a target position in a dock, and in an XYZ three-dimensional space coordinate system, the measuring head seat 12 can be lifted and lowered in the Z direction relative to the base 11.

[0044] The measuring head seat 12 is provided with an X measuring head 2, a Y measuring head 3 and a Z measuring head 4; the ship landing real-time measuring system also includes an X measuring target 5 and a Y measuring target 6, which are used to be fixed at the target position outside the bottom plate of the ship.

[0045] The X measuring head 2 is used to measure the distance X between the X measuring head 2 and the X measuring target 5 along the X direction when the X measuring target 5 is fixed on the ship 8. The Y measuring head 3 is used to measure the distance Y between the Y measuring head 3 and the Y measuring target 6 along the Y direction when the Y measuring target 6 is fixed on the ship 8. The Z measuring head 4 is used to measure the distance Z between the Z measuring head 4 and the outer side of the bottom plate of the ship along the Z direction. The relative position of the ship and the dock pier 7 in the dock is determined by the measurement results of the X measuring head 2, the Y measuring head 3, and the Z measuring head 4.

[0046] The real-time measurement system for ship landing comprises a data processing and control module, which can obtain data from each measuring head and send out ship position information according to the data from the measuring head; the data processing and control module is connected to the measuring head lifting mechanism 1, and when the ship floats down, the data processing and control module can control the lifting and lowering of the measuring head seat 12 of the measuring head lifting mechanism 1 according to the measuring data of the Z measuring head 4, so that the X measuring target 5 is within the measuring range of the X measuring head 2, and the Y measuring target 6 is within the measuring range of the Y measuring head 3.

[0047] In the real-time measurement system for a ship landing on a pier of the present application, by setting measuring heads in multiple directions in the dock, the position of the ship can be measured in real time. During the process of the ship landing on the pier, the position of the ship can be timely calibrated according to the measurement results. During the measurement process, there is no need to manually adjust the aiming of the measuring tool, and real-time measurement can be achieved, which increases the measurement efficiency.

[0048] In the prior art, a target point is set on the guide rail of the transverse bulkhead of the hull. Since the deformation of the guide rail of the transverse bulkhead of the hull is difficult to control and the deformation may be large, the data accuracy of the measurement target point is not high, which in turn leads to inaccurate pier landing control. The measurement target of the present application is set on the outside of the bottom plate of the ship, and real-time measurement is performed by a measuring head, so the measurement accuracy is higher.

[0049] In one embodiment, the data processing and control module includes a processor, which can be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), etc.; it can also be a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components.

[0050] In one embodiment, in the XYZ three-dimensional space coordinate system, the Z direction is the up-down direction, the X direction is the front-back direction, and the Y direction is the left-right direction. The X axis of this coordinate system is parallel to the longitudinal center axis of the dock pier arrangement, the Y axis is parallel to the transverse center axis of the dock pier arrangement, and the Z axis direction is the vertical direction.

[0051] In one embodiment, the X measuring head 2, the Y measuring head 3, and the Z measuring head 4 all include distance measuring sensors. In this embodiment, the distance measuring sensors are laser sensors.

[0052] In one embodiment, Figure 3 and Figure 4 As shown, the X measurement target 5 and the Y measurement target 6 are used to provide standard measurement objects for the X measurement head 2 and the Y measurement head 3, so that the laser emitted by the transmitting end of the measurement head can be reflected to the receiving end of the measurement head when encountering this structure. The X measurement target 5 and the Y measurement target 6 are located on the YZ plane and the XZ plane respectively. The YZ plane is a plane parallel to the mid-station plane of the ship, the XZ plane is a plane parallel to the midline plane of the ship, and the XY plane is a plane parallel to the base plane of the ship.

[0053] In one embodiment, the X measurement target 5 and the Y measurement target 6 are both measurement plates for welding on the outer side of the ship bottom plate. In one embodiment, the X measurement target 5 and the Y measurement target 6 are fixed on the ship bottom plate by magnetic attraction.

[0054] like Figure 6As shown, the X measurement target 5 is a square stainless steel plate with a side length L of 200 mm, and the distance from the ship FRXX is x1, x1 is a fixed value, x1 is less than x3 / 2, and can be x3 / 4, and x3 is the distance between the front and rear dock piers 7.

[0055] like Figure 8 As shown, the Y measurement target 6 is a square stainless steel plate with a side length L of 200 mm, and its distance from the centerline of the ship is y1, y1 is a fixed value, y1 is less than y3 / 2, and can be y3 / 4, y3 is the distance between the two dock piers 7 closest to the centerline.

[0056] In some embodiments, in order to facilitate the detection of the X measurement target 5 and the Y measurement target 6, the size of the X measurement target 5 and the Y measurement target 6 is as large as possible, for example, the side length of the X measurement target 5 and the Y measurement target 6 can be 400 mm, 500 mm, etc. In some embodiments, a Z measurement target can also be provided, and in this case, the Z measurement target is welded to the outer side of the bottom plate of the ship.

[0057] The X measuring target 5 and the Y measuring target 6 are both welded to the ship bottom outer plate. The measuring object structure of the Z measuring head 4 is the ship bottom outer plate.

[0058] like Figures 6 to 8 As shown, the distance between the end face of the X measuring head 2 and the center of the Z measuring head 4 in the X direction is a fixed value x2, the distance between the end face of the Y measuring head 3 and the center of the Z measuring head 4 in the Y direction is a fixed value y2, the distance between the top of the Z measuring head 4 and the side of the X measuring head 2 and the side of the Y measuring head 3 in the Z direction is a fixed value d2, and the distance between the top of the measuring head and the top of the dock 7 in the Z direction is a known value d1, and d1 can be calculated according to the displacement change of the measuring head seat 12 in the measuring head lifting mechanism 1 and the relative position of the measuring head seat 12 and the dock 7. Both d1 and d2 are smaller than L.

[0059] As a preferred method, the X measuring head 2, the Y measuring head 3, and the Z measuring head 4 are all laser measuring heads. The laser measuring head has higher measurement accuracy. In one embodiment, the measuring head is an ultrasonic measuring head.

[0060] The measuring head uses laser ranging method, which is controlled by the data processing and control module, and emits laser for measurement at regular intervals.

[0061] In one embodiment, the measuring head lifting mechanism 1 is a hydraulic cylinder, the cylinder body of the hydraulic cylinder constitutes the base 11, and the piston rod of the hydraulic cylinder constitutes the measuring head seat 12. The hydraulic cylinder has a relatively simple structure and low cost. In order to avoid damage to the hydraulic cylinder, the waterproof level of the hydraulic cylinder should be able to meet the requirements. The lifting and lowering of the measuring head lifting mechanism 1 is controlled by a data processing and control module. In some embodiments, the measuring head lifting mechanism can also adopt a screw nut mechanism, an electric push rod, a gear rack mechanism, etc.

[0062] In one embodiment, at least two measuring head lifting mechanisms 1 are provided. Preferably, two measuring head lifting mechanisms 1 are provided, one is provided at the bow corresponding to the target position of landing on the pier, and the other is provided at the stern corresponding to the target position of landing on the pier.

[0063] In one embodiment, Fig. 9 As shown, the real-time measurement system for ship landing comprises a data transmission module, which is connected to each measuring head to transmit the measurement data to the data processing and control module via wire.

[0064] In one embodiment, the real-time measurement system for ship landing includes a data storage module, which is connected to the data transmission module to receive data and is connected to the data processing and control module for the data processing and control module to read data. The data storage module is used to store and back up the known x1, x2, x3, y1, y2, y3, d1, d2, L, and is also used to store and back up the measured X, Y, Z and measurement time point data T. The data storage module can be a ROM, RAM, disk, U disk, memory card or CD and other media that can store program codes.

[0065] In one embodiment, the ship landing real-time measurement system includes a data display module, which is connected to the data processing and control module to display the processed data. In this embodiment, the changes of X, Y, Z values ​​and their target values ​​over time and the changes of ΔX, ΔY, ΔZ over time are displayed in the form of a chart on a remote terminal.

[0066] The following is an example of a real-time measurement system for ship landing using the above preferred embodiment. In this embodiment, the ship needs to float and shift from the initial state of construction, and then land at the target landing position in the dock. When the measuring head seat 12 is in the initial position, the upper surface of the Z measuring head 4 is flush with the top surface of the dock 7. Figure 5 and Fig.10 The working steps are described in detail as follows:

[0067] 1) At the initial position of the ship and the target landing position, the measuring head lifting mechanism 1 corresponding to the bow and stern of the ship is installed respectively (the measuring head seat 12 is in the initial position at this time), the X measuring target 5 and the Y measuring target 6 are installed on the ship, and the other modules of the measuring system are assembled;

[0068] 2) Water is released into the dock, and the water surface is above the base plane of the ship bottom, and the ship is in a floating state. After that, the data processing and control module transmits control information, and each measuring head located at the initial position of ship construction starts to emit laser to measure the distance. The data transmission module transmits the measured distance data X, Y, Z and time data T to the data storage module through a wired cable, and then the data storage module stores the relevant data, which is analyzed and processed by the data processing and control module, and finally displayed by the data display module;

[0069] 3) As the liquid level in the dock rises, the floating state of the ship changes to the fully floating state, that is, the outer bottom plate of the ship is disengaged from the dock pier 7. After that, water continues to be discharged into the dock, and a certain height difference appears between the outer bottom plate of the ship and the upper surface of the dock pier 7. On the data display module, the staff analyzes the relationship between the distance Z and the value L. When the value of the distance Z is greater than L, the ship starts operations such as floating state shifting;

[0070] 4) After the ship moves to the target landing pier position, rough positioning is carried out. The data processing and control module sends control information to the measuring head lifting mechanism 1 at the target landing pier position. The measuring head seat 12 at the target landing pier position rises to a fixed height, the water in the dock is drained, the liquid level starts to drop, and the ship starts to fall; until the data processing and control module determines that the Z value satisfies L - d1 < Z < L - d2. In terms of height, the X measuring target can be measured by the X measuring head, and the Y measuring target can be measured by the Y measuring head. If the X measuring head or the Y measuring head does not measure any data at this time, the position of the ship still needs to be adjusted horizontally until the X measuring target is within the measuring range of the X measuring head and the Y measuring target is within the measuring range of the Y measuring head. Then the staff stops draining the water in the dock, the liquid level no longer drops, and the ship no longer falls;

[0071] 5) The X measuring head 2 and the Y measuring head 3 start to measure distances. The data processing and control module calculates and analyzes according to ΔX = X - (x1 - x2), ΔY = Y - (y1 - y2). The data display module displays the relevant data in the form of a chart. The staff analyzes the chart and adjusts the ship position according to these data; until the data processing and control module determines that ΔX and ΔY meet the requirements, then the ship matches the layout of the dock pier 7 in both the X and Y directions;

[0072] 6) Continue to drain the water in the dock, and relevant data can be continuously monitored to keep the existing ship position unchanged and perform precise landing. During the landing process, the data processing and control module sends control information to the measuring head lifting mechanism 1 to lower the measuring head, and at the same time keeps the Z value always satisfying 0 ≤ Z < L - d2. During the landing process, if any one of ΔX, ΔY, and Z does not meet the requirements, stop draining the water and continue to adjust the ship position until the ship matches the layout of the dock pier 7, and then continue to land until the landing operation is completed.

[0073] The ship in this application not only refers to the whole ship, but also includes all products that need to be lifted, such as ring sections or sub-assemblies that make up the ship.

[0074] When the real-time measurement system for ship landing of the present application is used, in addition to the above-mentioned usage, in one embodiment, the side of the target landing position is the initial construction position. In one embodiment, the ship is floated in place before landing. At this time, there is no need to shift the ship. In one embodiment, the ship is shifted after floating in place, and then moved back to the original place to perform the landing operation.

[0075] According to the second aspect of the present application, a dock is also provided, which includes a pier arranged at the bottom of the dock and a real-time measurement system for the ship landing on the pier arranged in the dock. The real-time measurement system for the ship landing on the pier is the real-time measurement system for the ship landing on the pier described in any specific embodiment of the first aspect of the present application, and the details are not repeated here.

[0076] According to a third aspect of the present application, a real-time measurement method for a ship landing on a pier is also provided, using a real-time measurement system for a ship landing on a pier as described in any specific embodiment of the first aspect of the present application, comprising the following steps:

[0077] 1) Install the measuring head lifting mechanism at the target landing position in the dock, and install the X measuring target and Y measuring target on the outer side of the ship bottom plate;

[0078] 2) Roughly locate the floating ship at the target landing position, and adjust the position of the measuring head base according to the measurement value of the Z measuring head, so that the X measuring target is within the measuring range of the X measuring head, and the Y measuring target is within the measuring range of the Y measuring head;

[0079] 3) Adjust the position of the ship according to the measurement data of the X measuring head, Y measuring head and Z measuring head;

[0080] 4) After the ship is adjusted into position, the water in the dock is drained, and the measuring head seat is lowered along with the ship according to the measurement value of the Z measuring head. At the same time, the X measuring target is always within the measuring range of the X measuring head during the lowering process of the measuring head seat, and the Y measuring target is always within the measuring range of the Y measuring head during the lowering process of the measuring head seat, until the ship completes the landing at the target landing position.

[0081] In one embodiment, the floating ship is roughly positioned at the target landing position by pulling the ship with a cable in the dock to move the ship. In one embodiment, the ship is moved by towing the ship by a tugboat.

[0082] In one embodiment, step 2) further includes releasing water into the dock to float the ship on the pier beside the target landing position, until the bottom of the X measurement target and the Y measurement target are higher than the top of the pier, and then operating the ship to move the ship to the target landing position. In one embodiment, the side of the target landing position is the initial construction position. In one embodiment, the ship floats in place before landing. At this time, there is no need to shift the ship. In one embodiment, the ship shifts after floating in place, and then moves back to the original place to perform the landing operation.

[0083] In one embodiment, the X measurement target and the Y measurement target are installed vertically. The X measurement target and the Y measurement target are located on the YZ plane and the XZ plane respectively, the YZ plane is a plane parallel to the mid-station plane of the ship, and the XZ plane is a plane parallel to the midline plane of the ship.

[0084] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A real-time measurement system for ship landing, characterized in that: include: The measuring head lifting mechanism includes a base and a measuring head seat movably assembled on the base. The base is fixed at a target position in the dock. In an XYZ three-dimensional space coordinate system, the measuring head seat can be lifted and lowered in a Z direction relative to the base. The measuring head seat is provided with an X measuring head, a Y measuring head and a Z measuring head; The real-time measurement system for ship landing also includes an X measurement target and a Y measurement target. Both the X measurement target and the Y measurement target are measurement plates welded on the outside of the ship bottom plate. The X measurement target and the Y measurement target are used to be fixed at the target position on the outside of the ship bottom plate. The X measuring head is used to measure the distance to the X measuring target along the X direction when the X measuring target is fixed on the ship. The Y measuring head is used to measure the distance to the Y measuring target along the Y direction when the Y measuring target is fixed on the ship. The Z measuring head is used to measure the distance to the outer side of the bottom plate of the ship along the Z direction. The relative position of the ship and the dock pier in the dock is determined by the measurement results of the X measuring head, the Y measuring head and the Z measuring head. The data processing and control module can obtain the data of each measuring head and send the ship position information according to the data of the measuring head; the data processing and control module is connected with the measuring head lifting mechanism, and the data processing and control module can control the lifting and lowering of the measuring head seat of the measuring head lifting mechanism according to the measuring data of the Z measuring head when the ship floats down, so that the X measuring target is within the measuring range of the X measuring head, and the Y measuring target is within the measuring range of the Y measuring head.

2. The real-time measurement system for ship landing according to claim 1 is characterized in that: At least one of the X measuring head, the Y measuring head and the Z measuring head is a laser measuring head.

3. The real-time measurement system for ship landing according to claim 1 is characterized in that: The measuring head lifting mechanism is a hydraulic cylinder, the cylinder body of the hydraulic cylinder constitutes the base, and the piston rod of the hydraulic cylinder constitutes the measuring head seat.

4. The real-time measurement system for ship landing according to claim 1, 2 or 3, characterized in that: At least two measuring head lifting mechanisms are provided.

5. The real-time measurement system for ship landing according to claim 1, 2 or 3, characterized in that: The real-time measurement system for ship landing comprises a data display module, which is connected with a data processing and control module to display processed data.

6. The real-time measurement system for ship landing according to claim 1, 2 or 3, characterized in that: The real-time measurement system for ship landing comprises a data transmission module, which is connected to each measuring head to transmit the measurement data to the data processing and control module through wires.

7. A dock, comprising a dock pier arranged at the bottom of the dock and a real-time measurement system for a ship landing on the dock arranged in the dock, characterized in that: The real-time measurement system for a ship landing on a pier is the real-time measurement system for a ship landing on a pier as described in any one of claims 1-6.

8. A real-time measurement method for a ship landing, characterized in that: The real-time measurement system for ship landing as claimed in any one of claims 1 to 6 comprises the following steps: 1) Install the measuring head lifting mechanism at the target landing position in the dock, and install the X measuring target and Y measuring target on the outer side of the ship bottom plate; 2) Roughly locate the floating ship at the target landing position, and adjust the position of the measuring head base according to the measurement value of the Z measuring head, so that the X measuring target is within the measuring range of the X measuring head, and the Y measuring target is within the measuring range of the Y measuring head; 3) Adjust the position of the ship according to the measurement data of the X measuring head, Y measuring head and Z measuring head; 4) After the ship is adjusted into position, the water in the dock is drained, and the measuring head seat is lowered along with the ship according to the measurement value of the Z measuring head. At the same time, the X measuring target is always within the measuring range of the X measuring head during the lowering process of the measuring head seat, and the Y measuring target is always within the measuring range of the Y measuring head during the lowering process of the measuring head seat, until the ship completes the landing at the target landing position.

9. The real-time measurement method for ship landing according to claim 8 is characterized in that: Step 2) also includes releasing water into the dock to float the ship on the dock pier beside the target docking position until the bottom of the X measurement target and the Y measurement target are higher than the top of the dock pier, and then operating the ship to move the ship to the target docking position.

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