WO2022062159A1

WO2022062159A1 - Acoustic monitoring method for operation status of very large floating platform

Info

Publication number: WO2022062159A1
Application number: PCT/CN2020/131586
Authority: WO
Inventors: 邹大鹏; 张永康; 肖体兵; 纪轩荣
Original assignee: 广东工业大学
Priority date: 2020-09-22
Filing date: 2020-11-25
Publication date: 2022-03-31
Also published as: CN112162288A; CN112162288B

Abstract

An acoustic monitoring method for the operation status of a very large floating platform (1), appliable to a system for monitoring the operation status of the floating platform (1), the system comprising the platform (1), seabed depth acoustic measurers (2), sea surface height acoustic measurers (4), a seabed sediment acoustic measurer (6), and an attitude measurement sensor (8). The method comprises: controlling the attitude measurement sensor (8) to measure the platform (1) to obtain absolute attitude data; control the sea surface height acoustic measurers (4) to measure the sea surface to obtain sea surface status data; controlling the seabed depth acoustic measurers (2) to measure the seabed to obtain seabed status data; controlling the seabed sediment acoustic measurer (6) to measure the seabed to obtain seabed stratification and sediment type data; and constructing operation status data on the basis of the absolute attitude data, the sea surface status data, the seabed status data, and the seabed stratification and sediment type data, to implement real-time comprehensive monitoring of the platform (1) itself and an operation object.

Description

An acoustic monitoring method for the operation status of a super-large floating platform

technical field

The application relates to the field of acoustic positioning of floating platforms, in particular to an acoustic monitoring method for the operation state of a super-large floating platform.

Background technique

When the current super-large floating platform performs operations such as wind power installation and oil exploration and production in the ocean, under the constraints of large platform area, large volume, large required bearing capacity, long working time, and complex actual sea environment conditions, because Lack of reference objects makes it difficult to accurately grasp the positioning information of the platform and its own state information. Usually, it is necessary to install multiple measurement systems such as inclination sensors, acceleration sensors and GPS positioning devices, and realize the platform by solving the dynamic positioning and balance system of the control platform. The working characteristics of its own smooth and safe and high-precision control of the work object. However, the positioning accuracy of GPS is limited, and the position calculation of the acceleration sensor in the existing platform will accumulate errors, which will cause the platform to accumulate deviations in the ocean fluctuation environment, which will bring welding, hoisting, and processing to the operation of the super-large floating platform. The hazard of increased operating errors.

SUMMARY OF THE INVENTION

In view of this, the purpose of this application is to provide an acoustic monitoring method for the operation state of a super-large floating platform, which can accurately and comprehensively monitor the operation state of the platform, so as to obtain the operation state data of the platform, and provide the support of the platform operation adjustment data, so that the Platform operation is more stable and safe.

In order to achieve the above technical purpose, the present application provides an acoustic monitoring method for the operation state of a super-large floating platform, which is applied to a floating platform operation state monitoring system. The floating platform operation state monitoring system includes: a platform, a plurality of seabed a depth acoustic measurer, a plurality of sea surface height acoustic measurers, a seafloor acoustic measurer, and an attitude measurement sensor; and includes the following steps:

Control the attitude measurement sensor measurement platform to obtain measurement attitude data;

Obtaining the platform fitting plane according to the measured attitude data;

Obtain the absolute attitude data of the platform based on the posture of the platform fitting plane in the platform coordinate system of the platform;

Control each sea surface height acoustic measuring instrument to measure the sea surface, and obtain the height data from the sea surface measurement point respectively;

Obtain the sea surface fitting plane according to each of the height data;

obtaining sea surface state data based on the comparison between the sea surface fitting plane and the platform fitting plane;

Control each seabed depth acoustic measuring instrument to measure the seabed, and obtain the depth data from the seabed measurement point respectively;

Obtaining the seabed fitting plane according to the depth data;

Based on the comparison between the seabed fitting plane and the platform fitting plane, obtain seabed state data;

Control the seabed acoustic measuring instrument to measure the seabed, and obtain the data of seabed stratification and sediment type;

Based on the absolute attitude data, the sea surface state data, the seabed state data, and the relationship between the seabed stratification and sediment type data and the operation state data, platform operation state data is constructed.

Preferably, the platform fitting plane, the sea surface fitting plane, and the seafloor fitting plane are all obtained based on least squares fitting.

Preferably, the controlling each sea surface height acoustic measuring device to measure the sea surface, and obtain the height data from the sea surface measurement point respectively, which specifically includes;

Controlling each of the sea surface height acoustic measuring instruments to transmit and receive a first sound wave, and measure the travel time of the first sound wave;

According to the travel time of the first sound wave, the height data of each of the sea surface height acoustic measuring instruments from the sea surface measurement point are calculated respectively.

Preferably, the floating platform operating condition monitoring system further comprises a first support frame for installing the sea surface height acoustic measurer in a one-to-one correspondence;

The controlling each of the sea surface height acoustic measuring instruments to transmit and receive the first sound wave further includes:

The first support frame is controlled so that the sea surface height acoustic measurer extends out of the platform horizontally and vertically moves a first preset distance toward the sky.

Preferably, it is characterized in that the control of each seabed depth acoustic measurer to measure the seabed, respectively obtaining the depth data from the seabed measurement point, specifically includes:

Controlling each of the seabed depth acoustic measuring instruments to transmit and receive a second sound wave, and measure the travel time of the second sound wave;

According to the travel time of the second sound wave, the depth data of each of the seabed depth acoustic measuring instruments from the seabed measurement point is obtained by calculating respectively.

Preferably, the floating platform operating condition monitoring system further comprises a second support frame for installing the seabed depth acoustic measurer in a one-to-one correspondence;

The controlling each of the seabed depth acoustic measuring instruments to transmit and receive the second sound wave further includes:

The second support frame is controlled so that the seabed depth acoustic measurer extends out of the platform horizontally and moves vertically toward the seabed by a second preset distance.

Preferably, the control of the seabed bottom acoustic measuring instrument to measure the seabed, to obtain seabed stratification and sediment type data, specifically includes:

Controlling each of the seabed bottom acoustic measuring instruments to transmit and receive a third sound wave, and measure the intensity of the third sound wave;

According to the intensity of the third sound wave, the data of seabed stratification and sediment type are obtained.

Preferably, the floating platform operating condition monitoring system further comprises a third support frame for correspondingly installing the submarine bottom acoustic measuring instrument;

The controlling each of the seabed bottom acoustic measuring instruments to transmit and receive the third sound wave further includes:

The third support frame is controlled so that the seabed bottom acoustic measuring instrument horizontally extends out of the platform and moves vertically toward the seabed by a third preset distance.

Preferably, the number of the seabed depth acoustic measurers is four;

The sea surface height acoustic measuring instrument is specifically four;

Specifically, there are two subwoofer acoustic measuring instruments.

Preferably, the seabed depth acoustic measurer, the sea surface height acoustic measurer and the seabed bottom acoustic measurer are all distributed symmetrically around the circumference.

It can be seen from the above technical solutions that the present application obtains the measured attitude data of the platform itself through the attitude measurement sensor, constructs the platform fitting plane based on the measured attitude data, and then calculates the platform by the attitude of the platform fitting plane in the coordinate system of the platform itself. The absolute attitude data is obtained, and the sea surface fitting plane is obtained by the sea surface height acoustic measurer, and the sea floor fitting plane obtained by the seabed depth acoustic measurer is compared with the platform fitting plane, so as to obtain the sea surface state data and the seabed state data. Data to build job status data, realize comprehensive real-time monitoring of the platform's job status, provide platform job adjustment data support, and make platform operations more stable and safe.

Description of drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only These are some embodiments of the present application, and for those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

1 is a schematic flowchart of Embodiment 1 of an acoustic monitoring method for an ultra-large floating platform operating state provided in the application;

2 is a schematic diagram of a floating platform operating state monitoring system provided in the present application;

FIG. 3 is a schematic diagram of the sea surface height measurement process in Embodiment 2 of the acoustic monitoring method for the operation state of a super-large floating platform provided in the application;

Fig. 4 is a schematic diagram of the seabed depth measurement flow in Embodiment 2 of the acoustic monitoring method for the operation state of a super-large floating platform provided in the application;

FIG. 5 is a schematic diagram of the seabed bottom measurement flow in Embodiment 2 of the acoustic monitoring method for the operation state of a super-large floating platform provided in the application;

In the figure: 1. Platform; 2. Seabed depth acoustic measuring device; 3. Second support frame; 4. Sea surface height acoustic measuring device; 5. First support frame; 6. Seabed bottom acoustic measuring device; 7. Third Support frame; 8. Attitude measurement sensor.

detailed description

The technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in the embodiments of the present application, all other embodiments obtained by persons of ordinary skill in the art without creative work fall within the protection scope of the embodiments of the present application.

In the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" The orientation or positional relationship indicated by ” etc. is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the embodiments of the present application and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation, It is constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the embodiments of the present application. Furthermore, the terms "first", "second" and "third" are used for descriptive purposes only and should not be construed to indicate or imply relative importance.

In the description of the embodiments of the present application, it should be noted that, unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection or a The interchangeable connection, or the integral connection, can be a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, or an internal communication between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the embodiments of the present application in specific situations.

The embodiment of the present application discloses an acoustic monitoring method for the operation state of an ultra-large floating platform.

Referring to FIG. 1 and FIG. 2 , an embodiment of an acoustic monitoring method for an ultra-large floating platform operating state provided in the embodiment of the present application includes: an application comprising: a platform 1, a plurality of seabed depth acoustic measurers 2, A plurality of sea surface height acoustic measurers 4, seabed bottom acoustic measurers 6, attitude measurement sensors 8 and a floating platform operation state monitoring system; and include the following steps:

S1, control the attitude measurement sensor 8 to measure the platform 1 to obtain measurement attitude data;

S2, obtain the platform fitting plane according to the measured attitude data;

S3, based on the posture of the platform fitting plane in the platform coordinate system of platform 1, obtain the absolute posture data of platform 1;

Specifically, when the platform 1 is designed or constructed, the coordinate system of the platform 1 itself is determined accordingly, that is, the coordinates of the platform 1 itself relative to the earth; the measurement attitude data obtained by the attitude measurement sensor 8 is combined with the The coordinate system can obtain the fitting plane of platform 1 and the posture of the fitting plane in the platform coordinate system; taking it as the absolute posture data of platform 1, the self-balance and center of gravity of platform 1 can be adjusted according to the absolute posture data. For example, during the operation, due to sea waves, sea wind and its own load conditions, the self-balance and center of gravity of platform 1 are constantly changing. You can judge whether the absolute attitude data exceeds the preset threshold, and if so, adjust the platform's self-balance; if not, After the preset time, it will return to determine whether the absolute attitude data exceeds the preset threshold, so as to ensure the safety of the platform and prevent overturning.

S4, control each sea surface height acoustic measuring device 4 to measure the sea surface, and obtain the height data from the sea surface measurement point respectively;

S5, obtain the sea surface fitting plane according to the height data;

S6, based on the comparison between the sea surface fitting plane and the platform fitting plane, obtain sea surface state data;

Specifically, when the upper end surface of the platform 1 is flush with the sea level, the sea surface state data can be directly obtained through the height data obtained by measurement; The height data is corrected by the size settlement, and the sea surface state data is obtained by indirect calculation; through the sea surface state data, the flatness of the sea surface and the direction and fluctuation of the waves can be judged, and the motion compensation of the platform 1 in the waves can be pre-controlled.

S7, control each seabed depth acoustic measuring device 2 to measure the seabed, and obtain the depth data from the seabed measurement point respectively;

S8, obtain the seabed fitting plane according to each depth data;

S9, obtain seabed state data based on the comparison between the seabed fitting plane and the platform fitting plane;

When the upper end surface of platform 1 is flush with the sea level, the seabed state data can be directly obtained through the depth data obtained by measurement; when it is judged that platform 1 has a tilted attitude based on the absolute attitude data, the corrected depth is calculated based on the absolute attitude data and the size of the platform. The data can be indirectly calculated to obtain the seabed state data; through the seabed state data, the seabed depth and the flatness of the seabed bottom can be judged, which can be used as the control of the marine operation object touching the seabed bottom.

S10, controlling the seabed bottom acoustic measuring device 6 to measure the seabed, and obtain the data of seabed stratification and sediment type;

Specifically, the seabed bottom acoustic measuring device 6 realizes the detection of the seabed bottom based on the acoustic shallow profile system, thereby providing a priori knowledge for the calculation of the force of the installation operation object such as the installation of the drilling exploration platform and the insertion process design of the seabed, Thereby, it provides a feedback control amount for controlling the insertion force and maintaining the balance of the floating platform operating condition monitoring system.

S11, based on absolute attitude data, sea surface state data, seabed state data, and seabed stratification and sediment type data, construct operation state data, realize real-time comprehensive monitoring of the platform itself and operation objects, provide platform operation adjustment data support, and make the platform Work more smoothly and safely.

Specifically, the above steps S1 to S11 can be completed by the control system of the platform itself, or it can be added, for example, the control system composed of the control equipment installed on the platform, other marine tools or on land is completed, and there is no limitation. .

The above is the first embodiment provided by the embodiments of the present application, and the following is the second embodiment provided by the present application. For details, please refer to FIG. 1 to FIG. 2 .

Another embodiment of an acoustic monitoring method for the operation state of a super-large floating platform includes: the application includes: a platform 1, a plurality of seabed depth acoustic measurement devices 2, a plurality of sea surface height acoustic measurement devices 4, and seabed bottom acoustic measurement device 6, attitude measurement sensor 8 and the floating platform operating state monitoring system; wherein, the platform 1 also includes a first support frame 5 for installing the sea surface height acoustic measuring device 4 in one-to-one correspondence, and for installing the seabed in a one-to-one correspondence. The second support frame 3 of the depth acoustic measurement device 2 and the third support frame 7 for correspondingly installing the submarine bottom acoustic measurement device 6; the first support frame 5, the second support frame 3 and the third support frame 7 can all be It has the function of horizontal expansion and vertical expansion.

and includes the following steps:

Specifically, the attitude measurement sensor 8 is arranged on the platform 1; the attitude measurement sensor includes motion sensing devices such as a three-axis gyroscope, a three-axis accelerometer, and an electronic compass, and performs motion attitude measurement through a sensor data algorithm based on quaternion.

S2, the control system obtains the platform fitting plane of the platform 1 based on the least squares method according to the measured attitude data;

Specifically, polynomial fitting or polyfit fitting in Matlab can also be used, and there are no specific restrictions;

S3, based on the posture of the platform fitting plane in the platform coordinate system of platform 1, the absolute posture data of platform 1 is obtained, this step is the same as step S3 in the above-mentioned embodiment 1, and will not be repeated here;

Please refer to Figure 3, the sea surface height measurement process includes the following steps:

S41, control the first support frame 5, so that the sea surface height acoustic measuring device 4 horizontally extends out of the platform 1 and vertically moves a first preset distance toward the sky;

S42, control each sea surface height acoustic measuring device 4 to transmit and receive the first sound wave, and measure the travel time of the first sound wave;

S43, according to the travel time of the first sound wave, the height data of each sea surface height acoustic measuring device from the sea surface measurement point are obtained by calculating respectively.

Specifically, the sea surface height acoustic measuring device 4 included in the operating condition monitoring system of the floating platform is specifically four, which are arranged on the top of the platform and are distributed evenly and symmetrically in a circular matrix around the platform. In practical applications, more than three acoustic measuring instruments usually get non-planar, so the fitting plane needs to be corrected and corrected to the absolute coordinate system, which is the absolute plane corresponding to the actual state. The time plane is actually a three-dimensional plane in a three-dimensional environment;

The first support frame 5 includes a horizontal support frame and a vertical support frame to control the horizontal and vertical expansion of the support frame, wherein the first horizontal extension frame is installed on the platform 1, and the telescopic end is connected to the first vertical extension frame. connected to drive the first vertical telescopic frame to move out of the platform 1; the telescopic end of the first vertical telescopic frame is connected to the sea surface height acoustic measuring device 4; the controller is also connected to the first horizontal telescopic frame and the first vertical Telescopic frame electrical connection;

The first preset distance is preset before the measurement starts. After the first measurement, the control system adjusts the first preset distance according to the obtained altitude data, and integrates the results of the acoustic measuring instruments at different altitudes. Get the desired height data.

S5, obtain the sea surface fitting plane based on the least squares method according to the height data;

S6, based on the comparison between the sea surface fitting plane and the platform fitting plane, obtain sea surface state data; this step is the same as step S6 in the above-mentioned first embodiment, and is not repeated here;

Please refer to Figure 4, the seabed depth measurement process specifically includes the following steps:

S71 , the control system controls the second support frame 3 , so that the seabed depth acoustic measuring instrument 2 horizontally extends out of the platform 1 and moves vertically toward the seabed by a second preset distance.

S72, the control system controls each seabed depth acoustic measuring device 2 to transmit and receive the second sound wave, and measure the travel time of the second sound wave;

S73, the control system separately calculates and obtains the depth data of each seabed depth acoustic measuring instrument 2 from the seabed measuring point according to the travel time of the second sound wave.

Specifically, there are four subsea depth acoustic measuring instruments 2 included in the operating condition monitoring system of the floating platform, which are arranged at the bottom of the platform 1 and are distributed evenly and symmetrically in a circular matrix around the platform. Measure the required data;

The second support frame 3 also includes a horizontal support frame and a vertical support frame to control the horizontal and vertical expansion of the support frame, wherein the second horizontal extension frame is installed on the platform, and the telescopic end is connected to the second vertical extension frame connection; the telescopic end of the second vertical telescopic frame is connected to the seabed depth acoustic measuring device 2; the controller is also electrically connected to the second horizontal telescopic frame and the second vertical telescopic frame respectively;

The second preset distance is preset before the measurement starts. After the first measurement, the control system adjusts the second preset distance according to the obtained depth data, and integrates the results of the acoustic measuring instruments at different heights. Get the desired depth data.

S8, obtaining the seabed fitting plane based on the least squares method according to each depth data;

S9, based on the comparison between the seabed fitting plane and the platform fitting plane, obtain seabed state data; this step is the same as step S9 in the above-mentioned first embodiment, and will not be repeated here;

Please refer to Figure 5. The seabed sediment measurement process includes the following steps:

S101, control the third support frame 7, so that the seabed bottom acoustic measuring instrument 6 horizontally extends out of the platform 1 and vertically moves a third preset distance toward the seabed direction;

S102, controlling each bottom acoustic measuring device 6 to transmit and receive the third sound wave, and measure the intensity of the third sound wave;

S103, the controller calculates and obtains the substrate data according to the third sound wave intensity.

Specifically, there are two subsea bottom acoustic measuring instruments 6 included in the operating condition monitoring system of the floating platform, which are arranged at the bottom of the platform 1 and are symmetrically distributed around the platform. Data is required; the third support frame 7 also includes a horizontal support frame and a vertical support frame to control the horizontal and vertical expansion of the support frame; the third horizontal extension frame is installed on the platform 1, and the telescopic end is connected to the third vertical support frame. The straight telescopic frame is connected; the telescopic end of the third vertical telescopic frame is connected to the subsea bottom acoustic measurement device 6; the controller is also electrically connected to the third horizontal extension frame and the third vertical extension frame respectively;

During the first test, the third preset distance is adjusted according to the obtained depth data. After the first measurement, the third preset distance is changed according to the substrate data, and the desired distance can be obtained more accurately according to the multiple measurements at different positions. base data.

S11, based on absolute attitude data, sea surface state data, seabed state data, and seabed stratification and sediment type data, construct operation state data to realize real-time comprehensive monitoring of the platform itself and the operation object.

The present application combines the attitude measurement sensor 8, the sea surface height acoustic measurement device 4, the seabed depth acoustic measurement device 2 and the seabed bottom acoustic measurement device 6 to realize the measurement and calculation of the absolute attitude and relative attitude of the platform, and real-time monitoring of the motion characteristics of the operating object. Monitoring, so that the balance and center of gravity of the platform can be adjusted in time under the changing conditions of load, sea wind and waves, etc. At the same time, it provides pre-input for the platform motion compensation system, and provides pre-control for the operation object to contact the seabed surface and has been inserted into the seabed. It provides information on seabed resistance and load-bearing capacity for the installation of seabed bottom exploration devices, thereby providing pre-insertion force, ensuring the balance during the operation of the platform, and realizing closed-loop all-round real-time monitoring that combines the operating environment, the seabed and the platform.

It should be noted that the above are only the preferred embodiments of the present application, and are not intended to limit the present invention. Although the present application has been described in detail with reference to examples, those skilled in the art can still understand the above-mentioned examples. The technical solutions recorded are modified, or some technical features thereof are equivalently replaced, but any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of this application shall be included in the protection scope of this application. Inside.

Claims

An acoustic monitoring method for the operation state of a super-large floating platform, characterized in that it is applied to a floating platform operation state monitoring system, the floating platform operation state monitoring system comprising: a platform, a plurality of seabed depth acoustic measurers, a plurality of A sea surface height acoustic measurer, a seabed bottom acoustic measurer and an attitude measurement sensor; the corresponding acoustic monitoring method includes the following steps:

Control the attitude measurement sensor measurement platform to obtain measurement attitude data;

Obtaining the platform fitting plane according to the measured attitude data;

Obtain the absolute attitude data of the platform based on the posture of the platform fitting plane in the coordinate system of the platform;

Control each sea surface height acoustic measuring instrument to measure the sea surface, and obtain the height data from the sea surface measurement point respectively;

Obtain the sea surface fitting plane according to each of the height data;

obtaining sea surface state data based on the comparison between the sea surface fitting plane and the platform fitting plane;

Control each seabed depth acoustic measuring instrument to measure the seabed, and obtain the depth data from the seabed measurement point respectively;

Obtaining the seabed fitting plane according to the depth data;

Based on the comparison between the seabed fitting plane and the platform fitting plane, obtain seabed state data;

Control the seabed acoustic measuring instrument to measure the seabed, and obtain the data of seabed stratification and sediment type;

Based on the absolute attitude data, the sea surface state data, the seabed state data, and the relationship between the seabed stratification and sediment type data and the operation state data, the operation state data of the platform is obtained.
The method for acoustic monitoring of the operation state of a super-large floating platform according to claim 1, wherein the platform fitting plane, the sea surface fitting plane and the seabed fitting plane are all based on least squares fitting fit.
The method for acoustic monitoring of the operation state of a super-large floating platform according to claim 1, wherein the control of each sea surface height acoustic measuring device to measure the sea surface, and obtaining the height data from the sea surface measurement point respectively, specifically includes;

Controlling each of the sea surface height acoustic measuring instruments to transmit and receive a first sound wave, and measure the travel time of the first sound wave;

According to the travel time of the first sound wave, the height data of each of the sea surface height acoustic measuring instruments from the sea surface measurement point are calculated respectively.
The method for acoustic monitoring of the working state of a super-large floating platform according to claim 3, wherein the monitoring system for the working state of the floating platform further comprises a first one for installing the sea surface height acoustic measurer in a one-to-one correspondence. support frame;

The controlling each of the sea surface height acoustic measuring instruments to transmit and receive the first sound wave further includes:

The first support frame is controlled so that the sea surface height acoustic measurer extends out of the platform horizontally and vertically moves a first preset distance toward the sky.
The method for acoustic monitoring of the operation state of a super-large floating platform according to claim 1, characterized in that, by controlling each seabed depth acoustic measurer to measure the seabed, the depth data from the seafloor measurement point are obtained respectively, and the specific include:

Controlling each of the seabed depth acoustic measuring instruments to transmit and receive a second sound wave, and measure the travel time of the second sound wave;

According to the travel time of the second sound wave, the depth data of each of the seabed depth acoustic measuring instruments from the seabed measurement point is obtained by calculating respectively.
The method for acoustic monitoring of the working state of a super-large floating platform according to claim 5, wherein the monitoring system for the working state of the floating platform further comprises a second acoustic measuring device for installing the seabed depth acoustic measurer in a one-to-one correspondence. support frame;

The controlling each of the seabed depth acoustic measuring instruments to transmit and receive the second sound wave further includes:

The second support frame is controlled so that the seabed depth acoustic measurer extends out of the platform horizontally and moves vertically toward the seabed by a second preset distance.
The acoustic monitoring method for the operation state of a super-large floating platform according to claim 1, wherein the control of the seabed bottom acoustic measuring device to measure the seabed, and obtain seabed stratification and sediment type data, specifically include:

Controlling each of the seabed bottom acoustic measuring instruments to transmit and receive a third sound wave, and measure the intensity of the third sound wave;

According to the intensity of the third sound wave, the data of seabed stratification and sediment type are obtained.
The method for acoustic monitoring of the operation state of a super-large floating platform according to claim 7, wherein the system for monitoring the operation state of the floating platform further comprises a third support for correspondingly installing the seabed bottom acoustic measurer shelf;

The controlling of each of the submarine bottom acoustic measuring instruments to transmit and receive a third sound wave further includes:

The third support frame is controlled so that the seabed bottom acoustic measuring instrument horizontally extends out of the platform and vertically moves a third preset distance toward the seabed.
The method for acoustic monitoring of the operation state of a super-large floating platform according to claim 1, wherein the number of said seabed depth acoustic measurers is specifically four;

The sea surface height acoustic measuring instrument is specifically four;

Specifically, there are two seabed bottom acoustic measuring instruments.
The acoustic monitoring method for the operation state of a super-large floating platform according to claim 9, wherein the seabed depth acoustic measurer, the sea surface height acoustic measurer and the seabed bottom acoustic measurer are all arranged in a surrounding area. symmetrical distribution.