Anchor chain attitude monitoring system

Abstract

The invention relates to an anchor chain attitude monitoring system. The system comprises at least one tilt angle sensor used for acquiring tilt angle data of an anchor chain, wherein each tilt angle sensor is arranged on the anchor chain of a corresponding buoy column; at least one water surface data transmission terminal and at least one underwater data transmission terminal responsible for each water surface data transmission terminal; the water surface data transmission terminals are respectively arranged on the buoy columns; each underwater data transmission terminal is arranged on an anchor chain and is connected with the corresponding inclination angle sensor, and the underwater data transmission terminal is used for sending at least one inclination angle data to the data acquisition terminal through the corresponding water surface data transmission terminal; the data acquisition terminal is used for sending at least one inclination angle data to the monitoring terminal, is arranged on the target buoy column and is connected with each water surface data transmission terminal; and the monitoring terminal is used for receiving the at least one inclination angle data. The system can monitor the posture of the anchor chain for a long time.

Description

Technical Field

[0001] The present application relates to the technical field of anchor chain posture monitoring, and in particular to an anchor chain posture monitoring system. Background Art

[0002] With the development of offshore wind power technology, a safety management system for offshore wind turbine platforms has emerged. This safety management system is a prerequisite for ensuring the normal operation of offshore wind turbine platforms. Once the safety of offshore wind turbine platforms is greatly threatened due to various factors, it will cause serious economic losses. Therefore, in order to ensure the normal operation of offshore wind turbine platforms, it is necessary to monitor the working status of offshore wind turbine platforms.

[0003] Usually, the offshore wind turbine platform is fixed to the sea level by 9 anchor chains. Therefore, the inclination of the anchor chain can be used to describe the key load parameters of the offshore wind turbine platform, and can also realize the calculation of the stress of the anchor chain, that is, it can be used to monitor the working status of the offshore wind turbine platform. However, due to the complexity of the natural environment of the ocean, it is very difficult to route cables. The laying of cables is difficult, costly and inconvenient to maintain, making it very difficult to monitor the anchor chain posture for a long time. Obviously, this is not conducive to the safety management of offshore wind turbine platforms. Summary of the invention

[0004] Based on this, it is necessary to provide an anchor chain attitude monitoring system capable of monitoring the anchor chain attitude for a long time in response to the above technical problems.

[0005] The present application provides an anchor chain attitude monitoring system, which is applied to an offshore wind turbine platform including at least one buoy column, and the system includes:

[0006] At least one inclination sensor, each inclination sensor is arranged on the anchor chain corresponding to the buoy column, and the inclination sensor is used to obtain inclination data of the anchor chain;

[0007] At least one surface data transmission terminal and at least one underwater data transmission terminal that each surface data transmission terminal is responsible for, each surface data transmission terminal is connected to at least one underwater data transmission terminal that it is responsible for, each underwater data transmission terminal is arranged on the anchor chain and connected to a corresponding inclination sensor, and the underwater data transmission terminal is used to send at least one inclination data to the data collection terminal through the corresponding surface data transmission terminal;

[0008] A data acquisition terminal is arranged on the target buoy column and connected to each surface data transmission terminal, and the data acquisition terminal is used to send at least one inclination angle data to the monitoring terminal;

[0009] The monitoring terminal is used to receive at least one inclination angle data.

[0010] The above-mentioned anchor chain attitude monitoring system is applied to an offshore wind turbine platform including at least one buoy column. The anchor chain attitude monitoring system has at least one inclination sensor, each of which is arranged on the anchor chain of the corresponding buoy column, and the inclination sensor is used to obtain the inclination data of the anchor chain; at least one surface data transmission terminal and at least one underwater data transmission terminal responsible for each surface data transmission terminal; each surface data transmission terminal is respectively arranged on each buoy column and connected to at least one underwater data transmission terminal responsible for it; each underwater data transmission terminal is arranged on the anchor chain and connected to the corresponding inclination sensor, and the underwater data transmission terminal is used to send at least one inclination data to the data acquisition terminal through the corresponding surface data transmission terminal; the data acquisition terminal is arranged on the target buoy column and connected to each surface data transmission terminal, and the data acquisition terminal is used to send at least one inclination data to the monitoring terminal; the monitoring terminal is used to receive at least one inclination data. The anchor chain attitude monitoring system provided in the present application realizes the transmission of inclination data between underwater and surface through the cooperation of surface data transmission terminal and underwater data transmission terminal, thereby reducing the difficulty of laying cable routing and realizing low-cost monitoring of anchor chain attitude. At the same time, by setting the inclination sensor on the anchor chain corresponding to the buoy column, it is possible to obtain the inclination data of the anchor chain in real time to monitor the anchor chain attitude in real time. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the drawings required for use in the embodiments of the present application or related technical descriptions will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0012] Figure 1 A schematic diagram of the structure of an anchor chain posture monitoring system in one embodiment;

[0013] Figure 2 Schematic diagram of the structure of the anchor chain posture monitoring system in another embodiment. DETAILED DESCRIPTION

[0014] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0015] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0016] It is understood that the terms "first", "second", etc. used in this application may be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish a first element from another element. For example, without departing from the scope of this application, a first resistor may be referred to as a second resistor, and similarly, a second resistor may be referred to as a first resistor. Both the first resistor and the second resistor are resistors, but they are not the same resistor.

[0017] It can be understood that the “connection” in the following embodiments should be understood as “electrical connection”, “communication connection”, etc. if the connected circuits, modules, units, etc. have electrical signals or data transmission between each other.

[0018] It can be understood that “at least one” means one or more, “plurality” means two or more, and “at least a portion of an element” means a part or all of an element.

[0019] When used herein, the singular forms "a", "an", and "said / the" may also include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" and the like specify the presence of stated features, wholes, steps, operations, components, parts, or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof. At the same time, the term "and / or" used in this specification includes any and all combinations of the relevant listed items.

[0020] like Figure 1 As shown, an embodiment of the present application provides an anchor chain attitude monitoring system, which is applied to an offshore wind turbine platform including at least one buoy column. The anchor chain attitude monitoring system includes:

[0021] At least one inclination sensor 100, each inclination sensor 100 is arranged on the anchor chain of the corresponding buoy column, and the inclination sensor 100 is used to obtain inclination data of the anchor chain;

[0022] At least one surface data transmission terminal 200 and at least one underwater data transmission terminal 300 that each surface data transmission terminal 200 is responsible for; each surface data transmission terminal 200 is respectively arranged below each buoy column and connected to at least one underwater data transmission terminal 300 that it is responsible for; each underwater data transmission terminal 300 is arranged on the anchor chain and connected to the corresponding inclination sensor 100, and the underwater data transmission terminal 300 is used to send at least one inclination data to the data collection terminal 400 through the corresponding surface data transmission terminal 200;

[0023] The data collection terminal 400 is arranged on the target buoy column and connected to each surface data transmission terminal 200, and the data collection terminal 400 is used to send at least one inclination data to the monitoring terminal 500;

[0024] The monitoring terminal 500 is used to receive at least one inclination data.

[0025] Among them, offshore wind turbine platforms are facilities specially designed for installing wind turbines in marine environments. Offshore wind turbine platforms can support the towers and rotors of wind turbines so that wind turbines can capture wind energy in the offshore environment and convert it into electrical energy. Offshore wind turbine platforms are a key component of offshore wind farms, allowing wind turbines to be installed in sea areas farther offshore, with higher wind speeds and more stable conditions.

[0026] A buoy column refers to a vertical or nearly vertical columnar structure used to support and fix the platform structure in an offshore wind turbine platform. The buoy column is used to ensure that the wind turbine can be stably installed on the offshore wind turbine platform.

[0027] Anchor chain refers to a chain used to fix and stabilize the buoy column. The anchor chain is used to connect the buoy column to the anchor. The anchor chain can ensure that the buoy column remains in the predetermined position by resisting wind, water flow and other external forces. Structurally, the anchor chain consists of many links, which are connected together by welding or forging to form a long chain. By monitoring the inclination angle and force conditions of the anchor chain, potential problems can be discovered at an early stage. For example, if the anchor chain is found to be subjected to excessive stress or wear at an early stage, measures can be taken to repair or replace the anchor chain before the situation worsens, thereby ensuring the stability and safety of the offshore wind turbine platform.

[0028] The inclination data includes the inclination angle and acceleration change of the anchor chain. Optionally, the inclination data may also include a timestamp of each time node to facilitate tracking of the history of the inclination data of the anchor chain. Optionally, the inclination data is sent to the monitoring terminal 500 in the form of an encapsulated data packet. Optionally, after acquiring the inclination data of the anchor chain, the inclination sensor 100 may store it in its own internal memory.

[0029] Optionally, the tilt sensor 100 may be an electronic tilt sensor, an optical tilt sensor, a mechanical tilt sensor, a MEMS (micro-electromechanical system) tilt sensor or other sensors capable of measuring the tilt angle of an object relative to a horizontal plane or a vertical plane.

[0030] Optionally, each inclination sensor 100 is arranged on the anchor chain of the corresponding buoy column. The inclination sensor 100 can be directly fixed on the anchor chain by using special fasteners or clamps to ensure the synchronous movement of the sensor and the anchor chain; the inclination sensor 100 can also be integrated into the structure of the anchor chain. For example, the inclination sensor 100 can be embedded in the chain link of the anchor chain.

[0031] Optionally, since the inclination sensor 100 is installed in a marine environment, the inclination sensor 100 may be provided with a waterproof housing to prevent seawater corrosion and biological attachment in order to improve the corrosion resistance of the inclination sensor 100 and to increase the service life of the inclination sensor 100. Further optionally, the waterproof housing may be made of stainless steel, aluminum alloy, rubber, epoxy resin or other materials with waterproof and anti-corrosion properties.

[0032] Optionally, the inclination sensor 100 can measure the inclination angle and acceleration change of the anchor chain relative to the horizontal plane in real time, and send the inclination data including the inclination angle and acceleration change to the data collector; the inclination sensor 100 can periodically obtain the inclination data of the anchor chain according to the set sampling frequency for analyzing the dynamic response of the anchor chain.

[0033] The surface data transmission terminal 200 refers to a communication device used for data transmission on the water surface. Optionally, the surface data transmission terminal 200 may be a surface acoustic communication data transmission terminal; optionally, the surface data transmission terminal 200 may be arranged on the water surface or near the water surface; optionally, the surface data transmission terminal 200 may transmit data with a terminal device above the water surface through wireless communication technology (such as 4G, Wi-Fi or other wireless protocols); optionally, the surface data transmission terminal 200 may be powered by the power supply system of the offshore wind turbine platform, or by the data acquisition terminal 400 connected thereto.

[0034] The data collection terminal 400 can transmit data in areas without wired network coverage to ensure real-time transmission of the tilt data. Optionally, the data collection terminal 400 can be a 4G relay collector.

[0035] Optionally, each surface data transmission terminal 200 is respectively arranged on each buoy column. Specifically, the surface data transmission terminal 200 is arranged below each buoy column. The position below each buoy column can be a position on the water surface or a position close to the water surface.

[0036] The underwater data transmission terminal 300 refers to a communication device used for transmitting data underwater. Optionally, the underwater data transmission terminal 300 may be an underwater acoustic data transmission terminal; optionally, each underwater data transmission terminal 300 is arranged on the anchor chain and connected to the corresponding tilt sensor 100, specifically, the underwater data transmission terminal 300 is arranged underwater and is bundled with the tilt sensor 100 on the anchor chain; optionally, the underwater data transmission terminal 300 may transmit data underwater through underwater acoustic communication technology (i.e., sonar communication technology); optionally, the underwater data transmission terminal 300 may be powered by the power supply system of the offshore wind turbine platform, or may be powered by a power line extending from the surface data transmission terminal 200.

[0037] Optionally, the number of underwater data transmission terminals 300 that each surface data transmission terminal 200 is responsible for may be three or other numbers, and each underwater data transmission terminal 300 performs data transmission with the surface data transmission terminal 200 with which it has a corresponding relationship. Specifically, the inclination data received by each underwater data transmission terminal 300 from the corresponding inclination sensor 100 is sent to the data collection terminal 400 through the surface data transmission terminal 200 with which it has a corresponding relationship.

[0038] Optionally, since the surface data transmission terminal 200 may be installed on the water surface or near the water surface, and the underwater data transmission terminal 300 is installed in the marine environment, similarly to the tilt sensor 100, the surface data transmission terminal 200 and the underwater data transmission terminal 300 may be provided with a waterproof shell to prevent seawater corrosion and biological attachment. Further optionally, the waterproof shells of the surface data transmission terminal 200 and the underwater data transmission terminal 300 may be composed of materials with waterproof and anti-corrosion properties.

[0039] Optionally, in order to ensure that the inclination data can be smoothly transmitted between underwater and the surface, the interface used for data transmission by the surface data transmission terminal 200 and the interface used for data transmission by the underwater data transmission terminal 300 can be matched with each other. Furthermore, the two interfaces can correspond to the same data transmission protocol, thereby further ensuring the smoothness of the data link between underwater and the surface, so as to ensure that the inclination data can be received by the monitoring terminal 500 in real time.

[0040] Optionally, the target buoy column may be a buoy column corresponding to a position in the offshore wind turbine platform that can provide the best communication coverage area; illustratively, the target buoy column may be a buoy column with the shortest distance from the monitoring terminal 500 to improve the efficiency of real-time acquisition of the inclination data of the anchor chain.

[0041] Optionally, the monitoring terminal 500 may be, but is not limited to, various personal computers, laptop computers, smart phones, tablet computers, and portable wearable devices, and the portable wearable devices may be smart watches, smart bracelets, head-mounted devices, etc. Further optionally, the monitoring terminal 500 may have a display interface, so that the inclination data can be displayed in the display interface for the monitoring personnel to determine the anchor chain posture. Further optionally, in addition to displaying at least one inclination data, the display interface of the monitoring terminal 500 may also display whether the working mode of the inclination sensor 100 is in a normal working mode or a fault.

[0042] Optionally, the monitoring terminal 500 may be installed with a monitoring application, so that the monitoring terminal 500 may receive at least one inclination data through the monitoring application.

[0043] In an exemplary embodiment, the monitoring terminal 500 is further configured to modify the working parameters and / or the tilt data collection mode of at least one tilt sensor in real time in response to a modification instruction.

[0044] It is easy to understand that after the monitoring terminal 500 receives at least one inclination data, at least one anchor chain posture can be determined based on the at least one inclination data. Further, the stress condition of at least one anchor chain can be determined based on the at least one anchor chain posture. Based on this, at least one inclination data can be used to monitor the working status of the offshore wind turbine platform.

[0045] In the present embodiment, the anchor chain attitude monitoring system is applied to an offshore wind turbine platform including at least one buoy column. The anchor chain attitude monitoring system has at least one inclination sensor, each of which is arranged on the anchor chain of the corresponding buoy column, and the inclination sensor is used to obtain the inclination data of the anchor chain; at least one surface data transmission terminal and at least one underwater data transmission terminal responsible for each surface data transmission terminal; each surface data transmission terminal is respectively arranged on each buoy column and connected to at least one underwater data transmission terminal responsible for it; each underwater data transmission terminal is arranged on the anchor chain and connected to the corresponding inclination sensor, and the underwater data transmission terminal is used to send at least one inclination data to the data acquisition terminal through the corresponding surface data transmission terminal; the data acquisition terminal is arranged on the target buoy column and connected to each surface data transmission terminal, and the data acquisition terminal is used to send at least one inclination data to the monitoring terminal; the monitoring terminal is used to receive at least one inclination data. The anchor chain attitude monitoring system provided in the present application realizes the transmission of inclination data between underwater and surface through the cooperation of surface data transmission terminal and underwater data transmission terminal, thereby reducing the difficulty of laying cable routing and realizing low-cost monitoring of anchor chain attitude. At the same time, by setting the inclination sensor on the anchor chain corresponding to the buoy column, it is possible to obtain the inclination data of the anchor chain in real time to monitor the anchor chain attitude in real time.

[0046] In an exemplary embodiment, Figure 2 As shown, the above system also includes:

[0047] The cloud server 600 is used to receive at least one inclination data from the data acquisition terminal 400 , and is also used to store at least one inclination data in a cloud database and send at least one inclination data to the monitoring terminal 500 .

[0048] Exemplarily, the target buoy column may be a buoy column with the shortest distance from the cloud server 600, so as to improve the efficiency of obtaining the inclination data of the anchor chain in real time.

[0049] In an exemplary embodiment, the cloud server 600 is used to receive at least one inclination data from the data collection terminal 400 via a mobile communication base station.

[0050] In this embodiment, due to the existence of the cloud server, the monitoring terminal does not need to be connected to the data acquisition terminal to transmit data with the data acquisition terminal, thereby realizing the remote real-time monitoring of the anchor chain posture by the monitoring terminal; at the same time, the data transmission between the data acquisition terminal and the monitoring terminal is realized through the cloud server, and the cloud server can save at least one inclination data in the cloud database, thereby ensuring that the inclination data is centrally managed and securely backed up, thereby improving the safety and reliability of at least one inclination data of the anchor chain.

[0051] In an exemplary embodiment, the monitoring terminal is further used to send a mode switching instruction to the cloud server, so that the cloud server sends the mode switching instruction to the data acquisition terminal;

[0052] The data acquisition terminal is also used to determine the inclination data collection mode of each inclination sensor based on the mode switching instruction.

[0053] In another exemplary embodiment, the cloud server sends the mode switching instruction to the data acquisition terminal via a mobile communication base station.

[0054] The mode switching instruction may be initiated by a user in the monitoring terminal, or may be generated by the monitoring terminal based on the current ocean data obtained.

[0055] The inclination data collection mode refers to different collection modes preset for inclination data according to environmental conditions and operational requirements.

[0056] In this embodiment, the tilt data collection mode of each tilt sensor is determined by a mode switching instruction, thereby improving the flexibility of the tilt sensor and its adaptability to complex and changeable marine environments.

[0057] In an exemplary embodiment, the above-mentioned tilt data collection mode is a normal working mode or a typhoon working mode;

[0058] The tilt data collection frequency of the normal working mode is lower than that of the typhoon working mode, and the continuous working time of the normal working mode is higher than that of the typhoon working mode.

[0059] The normal working mode refers to the working mode of the tilt sensor in weather other than typhoon weather. The typhoon working mode refers to the working mode of the tilt sensor in typhoon weather. Optionally, the monitoring terminal can determine whether it is in typhoon weather based on the typhoon warning signal issued by the meteorological bureau terminal.

[0060] Specifically, in the normal working mode, while ensuring that the inclination sensor can effectively monitor the anchor chain posture, it is necessary to consider the issue of energy consumption in order to avoid unnecessary energy consumption of the anchor chain posture monitoring system; unlike the normal working mode, in the typhoon working mode, due to the influence of typhoon weather, the anchor chain posture may change dramatically, and thus, it is necessary to monitor the changes in the anchor chain posture more closely. Therefore, the inclination data collection frequency of the normal working mode is lower than that of the typhoon working mode.

[0061] Specifically, in the normal working mode, due to relatively good weather conditions, the load condition of the anchor chain attitude monitoring system is also relatively good; unlike the normal working mode, in the typhoon working mode, due to the possible influence of extreme weather conditions, the anchor chain attitude monitoring system is prone to overload or even damage. Therefore, the continuous working time of the normal working mode is greater than the continuous working time of the typhoon working mode to ensure real-time and continuous monitoring of the anchor chain attitude in the normal working mode, while ensuring the safety of the anchor chain attitude monitoring system in the typhoon working mode.

[0062] Optionally, the frequency of inclination data collection in the normal working mode may be 4 times a day, and each time of inclination data collection is 10 minutes; the frequency of inclination data collection in the typhoon working mode may be once an hour, and each time of inclination data collection is 10 minutes.

[0063] Optionally, after each inclination sensor collects at least one inclination data according to the inclination data collection frequency, it will automatically transmit at least one inclination data back to the monitoring terminal through the underwater data transmission terminal, the surface data transmission terminal, the data collection terminal, and the cloud server.

[0064] Optionally, the frequency of inclination data collection in the normal working mode is, if the inclination data collection work is performed 4 times a day, and the duration of each inclination data collection work is 10 minutes, then the time periods of the 4 inclination data collection work can be evenly distributed in the day. For example, the inclination data collection work with a duration of 10 minutes can be performed at 0 o'clock (24 o'clock), 6 o'clock, 12 o'clock and 18 o'clock every day.

[0065] Optionally, the frequency of inclination data collection in the normal working mode can be determined according to the marine environmental conditions, which include tides, currents and wind direction changes, so that at least one time period in which the marine environmental conditions meet the preset change conditions can be selected in a day to perform inclination data collection. Exemplarily, the preset change condition can represent that the change amplitude of the marine environmental conditions is greater than or equal to the preset amplitude, so that if the frequency of inclination data collection in the normal working mode is to perform inclination data collection 4 times a day, and the duration of each inclination data collection work is 10 minutes, 4 time periods in which the change amplitude of the marine environmental conditions is greater than or equal to the preset amplitude can be selected in a day to perform inclination data collection 4 times.

[0066] Optionally, in order to prevent the anchor chain attitude monitoring system from being overloaded or damaged by extreme weather in the typhoon working mode, the continuous working time of the typhoon working mode may be less than or equal to 48 hours.

[0067] In the present embodiment, the inclination data collection mode is a normal working mode or a typhoon working mode, and the inclination data collection frequency of the normal working mode is lower than that of the typhoon working mode, and the continuous working time of the normal working mode is longer than that of the typhoon working mode, thereby ensuring that the anchor chain attitude monitoring system can monitor the anchor chain attitude in real time under any weather conditions, and at the same time, ensuring that the anchor chain attitude monitoring system has sufficient safety even under the influence of extreme weather.

[0068] In an exemplary embodiment, the above-mentioned monitoring terminal is also used to obtain the power of at least one inclination sensor through a cloud server, a data acquisition terminal, a surface data transmission terminal, and an underwater data transmission terminal, and determine the inclination data acquisition frequency of at least one inclination sensor based on the power of at least one inclination sensor.

[0069] In another exemplary embodiment, when the power level of the inclination sensor is less than a preset power level, the monitoring terminal is also used to generate a first frequency adjustment coefficient based on the power difference between the power level of the inclination sensor and the preset power level, so as to reduce the inclination data collection frequency of the inclination sensor based on the first frequency adjustment coefficient; wherein the degree of reduction of the inclination data collection frequency of the inclination sensor by the first frequency adjustment coefficient is positively correlated with the absolute value of the power difference.

[0070] In another exemplary embodiment, when the power level of the inclination sensor is greater than a preset power level, the monitoring terminal is also used to obtain current ocean data, determine the weather condition level based on the current ocean data, and generate a second frequency adjustment coefficient based on the weather condition level, so as to reduce the inclination data collection frequency of the inclination sensor based on the second frequency adjustment coefficient; wherein the degree of reduction of the inclination data collection frequency of the inclination sensor by the second frequency adjustment coefficient is negatively correlated with the degree of weather severity represented by the weather condition level.

[0071] Among them, the weather condition level is determined based on the current ocean data, and the weather condition level can be determined based on the wind speed in the current ocean data. The greater the wind speed, the greater the ocean fluctuation, and the greater the degree of weather severity represented by the weather condition level at this time, that is, the wind speed is positively correlated with the degree of weather severity, and vice versa. The worse the weather, the more drastic the change in the anchor chain attitude will be. Therefore, for the safety of the offshore wind turbine platform, it is necessary to maintain a high frequency of inclination data acquisition to monitor the anchor chain attitude in real time. On the contrary, when the weather conditions are good and the inclination sensor has sufficient power, it means that the anchor chain attitude is relatively stable, and the frequency of inclination data acquisition can be appropriately reduced at this time.

[0072] In this embodiment, the monitoring terminal can generate a first frequency adjustment coefficient based on the different power conditions of the inclination sensor. When the power is low, it can appropriately reduce the inclination data collection frequency according to the power conditions. When the power is high, it can generate a second frequency adjustment coefficient to adaptively adjust the inclination data collection frequency according to the weather condition level. Thus, through the flexible and adaptive adjustment of the inclination data collection frequency, the power consumption of the inclination sensor can be saved and the utilization rate of the inclination sensor can be improved.

[0073] In an exemplary embodiment, when the inclination data collection mode of each inclination sensor is the typhoon working mode, the inclination data collection mode is automatically switched to the normal working mode after the continuous working time reaches a preset time.

[0074] Optionally, the preset time may be less than or equal to 48 hours or other time lengths.

[0075] In this embodiment, in typhoon weather, it is ensured that the continuous working time of each inclination sensor is not greater than the preset time. Thus, in extremely changing weather conditions such as typhoon weather, it is possible to avoid the adverse situation of overload or damage caused by long-term work of the anchor chain attitude monitoring system, thereby improving the safety of the anchor chain monitoring system.

[0076] In an exemplary embodiment, each inclination sensor generates an alarm signal when the inclination data does not meet the preset conditions, and sends the inclination data to the monitoring terminal through each underwater data transmission terminal, the corresponding surface data transmission terminal and the data acquisition terminal.

[0077] In another exemplary embodiment, each inclination sensor generates an alarm signal when the inclination data does not meet a preset condition, and sends the alarm signal to each underwater data transmission terminal, so that each underwater data transmission terminal sends the alarm signal to the corresponding surface data transmission terminal, so that each surface data transmission terminal sends the alarm signal to the data acquisition terminal, so that the data acquisition terminal sends the alarm signal to the cloud server, so that the cloud server sends the inclination data to the monitoring terminal.

[0078] In another exemplary embodiment, the data acquisition terminal sends an alarm signal to the cloud server via a mobile communication base station, so that the cloud server sends the inclination data to the monitoring terminal.

[0079] Among them, the preset conditions are used to distinguish the normal state of the anchor chain posture and the abnormal state that may require intervention. Due to the existence of the preset conditions, it can be ensured that timely monitoring can be carried out and appropriate measures can be taken to intervene when the anchor chain posture changes; the preset conditions can be determined based on the design parameters, historical data, marine environmental conditions and safety standards of the anchor chain; the preset conditions can also be set by the user in advance on the monitoring terminal, so that the user can modify the preset conditions in real time online on the monitoring terminal.

[0080] The alarm signal is used to remind the operator or manager of the anchor chain attitude monitoring system to implement intervention measures on the offshore wind turbine platform in time to prevent potential hazards or risks. For example, the intervention measures can be to guide the evacuation of the staff of the offshore wind turbine platform, or to determine whether the wind turbines in the offshore wind turbine platform need maintenance, stop operation, adjust operating parameters, etc. It is easy to understand that since the inclination data is obtained in real time through the inclination sensor, the generated alarm signal is also real-time, so that long-term monitoring of the anchor chain attitude can be achieved based on the real-time alarm signal of the anchor chain attitude.

[0081] Exemplarily, in the case where the inclination data includes the inclination angle and the acceleration change, the preset condition may be that the inclination angle is less than or equal to the preset angle, and the acceleration change is less than or equal to the preset change. Thus, failure to meet the preset condition means that the inclination angle of the anchor chain is greater than the preset angle and / or the acceleration change is greater than the preset change, that is, the inclination angle is too large and / or the acceleration change is too large. This situation indicates that there is a certain risk in the offshore wind turbine platform, and therefore, an alarm signal needs to be generated.

[0082] In this embodiment, when the inclination data does not meet the preset conditions, it indicates that the anchor chain has a large inclination angle or a large acceleration change, that is, the inclination angle of the anchor chain is greater than the preset angle and / or the acceleration change is greater than the preset change. In this case, it means that the offshore wind turbine platform is in certain danger. Therefore, generating an alarm signal at this time can ensure the safety of the offshore wind turbine platform and the anchor chain attitude monitoring system at the same time; at the same time, since the acquired inclination data is real-time, the generated alarm signal is also real-time, and further, based on the real-time inclination data and the real-time alarm signal, long-term real-time monitoring of the anchor chain attitude can be achieved.

[0083] In an exemplary embodiment, the above-mentioned monitoring terminal is also used to send a sleep instruction or a wake-up instruction to the cloud server, so that the cloud server sends the sleep instruction or the wake-up instruction to each inclination sensor through the data acquisition terminal, each surface data transmission terminal and each underwater data transmission terminal, so that each inclination sensor enters the sleep mode based on the sleep instruction or wakes up from the sleep mode based on the wake-up instruction.

[0084] In another exemplary embodiment, the cloud server sends a sleep instruction or a wake-up instruction to each inclination sensor through a mobile communication base station, a data acquisition terminal, each surface data transmission terminal, and each underwater data transmission terminal, so that each inclination sensor enters a sleep mode based on the sleep instruction or wakes up from the sleep mode based on the wake-up instruction.

[0085] The sleep mode refers to a low-power energy-saving mode in which the tilt sensor is in. It is easy to understand that the energy consumption of the tilt sensor in the sleep mode is lower than that in the normal working mode.

[0086] Optionally, the sleep instruction and / or wake-up instruction may be initiated by a user in the monitoring terminal, or may be generated by the monitoring terminal based on the working duration of each tilt sensor, or may be generated by the monitoring terminal based on acquired current ocean data.

[0087] In this embodiment, the monitoring terminal is also used to send a sleep command or a wake-up command to the cloud server, so that each inclination sensor can flexibly enter the sleep mode or wake up from the sleep mode, thereby improving the working flexibility of the inclination sensor and reducing energy consumption when necessary.

[0088] In an exemplary embodiment, the monitoring terminal is also used to obtain current ocean data, so as to send a new mode switching instruction to the cloud server based on the current ocean data.

[0089] In another exemplary embodiment, the above-mentioned monitoring terminal is communicated with the meteorological bureau terminal to obtain current ocean data, and sends a new mode switching instruction to the cloud server based on the current ocean data, so that the cloud server sends the new mode switching instruction to the data acquisition terminal, so that the data acquisition terminal sends the new mode switching instruction to the surface data transmission terminal, so that the surface data transmission terminal sends the new mode switching instruction to the underwater data transmission terminal, so that the underwater data transmission terminal sends the new mode switching instruction to each inclination sensor to determine the new inclination data collection mode of each inclination sensor.

[0090] Among them, the meteorological bureau terminal may be a meteorological bureau terminal corresponding to the area where the offshore wind turbine platform is located. For example, if the offshore wind turbine platform is located in Shenzhen City, Guangdong Province, the meteorological bureau terminal may be the Shenzhen Meteorological Bureau terminal.

[0091] Optionally, the current ocean data may include water pattern data, ocean current data, wave height data or other ocean-related data of the sea area where the current ocean is located.

[0092] A new mode switching instruction is used to determine whether the tilt data collection mode of each tilt sensor is a normal working mode or a typhoon working mode.

[0093] In this embodiment, the monitoring terminal is also used to obtain current ocean data, so as to send a new mode switching instruction to the cloud server based on the current ocean data, so that each inclination sensor can operate in a new inclination data collection mode based on the new mode switching instruction, thereby improving the flexibility of each inclination sensor and making the collected at least one inclination data have higher real-time and accuracy. Furthermore, by collecting real-time inclination data that is consistent with the current ocean data, real-time monitoring of the anchor chain posture can be more accurately achieved.

[0094] In an exemplary embodiment, the monitoring terminal is further used to obtain current ocean data to set new preset conditions based on the current ocean data so that each inclination sensor generates an alarm signal when the inclination data does not meet the new preset conditions.

[0095] Exemplarily, in the case where the inclination data includes the inclination angle and the acceleration change, the new preset condition may be that the inclination angle is less than or equal to the new preset angle, and the acceleration change is less than or equal to the new preset change. Thus, failure to meet the new preset condition means that the inclination angle and / or acceleration change of the anchor chain have deviated from the normal range. This situation indicates that there is a greater risk to the offshore wind turbine platform, and therefore, an alarm signal needs to be generated.

[0096] Optionally, the direction of change of the new preset condition can be determined based on the direction of change of the current ocean data. For example, if the current ocean data indicates that the wave height is higher than the average wave height, and the higher wave height may cause the tilt angle obtained by the inclination sensor to be greater than the tilt angle under normal circumstances, in this case, in order to avoid false triggering of the alarm signal, when the inclination data includes the tilt angle and the acceleration change, the new preset angle can be set to be less than the preset angle, and the new preset change amount can be set to be less than the preset change amount.

[0097] In the present embodiment, new preset conditions are set based on the current ocean data so that each inclination sensor generates an alarm signal when the inclination data does not meet the new preset conditions, thereby, the anchor chain attitude monitoring system can respond more flexibly to changes in the ocean environment, improve the accuracy and credibility of the inclination data acquired by the anchor chain attitude monitoring system, and reduce false alarms caused by environmental factors, thereby ensuring that the anchor chain attitude monitoring system can issue an alarm signal in time under real abnormal circumstances to ensure the safety of the system; at the same time, since the current ocean data acquired is real-time, correspondingly, the new preset conditions are also real-time, and therefore the alarm signal generated based on the real-time new preset conditions is also real-time, thereby, based on the timely generated real-time inclination data and real-time alarm signal, long-term real-time monitoring of the anchor chain attitude can be achieved.

[0098] In an exemplary embodiment, after the monitoring terminal receives at least one inclination data, it can determine the stress condition of the anchor chain based on the inclination data of the anchor chain, and set new warning preset conditions based on the stress condition of the anchor chain so that each inclination sensor generates an alarm signal when the inclination data does not meet the new preset warning conditions.

[0099] The preset warning condition is determined based on at least one inclination data. Therefore, by setting a new preset warning condition through at least one newly received inclination data, the anchor chain attitude monitoring system can be made more flexible and environmentally adaptable.

[0100] In an exemplary embodiment, the above-mentioned inclination data includes the inclination angle in the first direction, the acceleration change in the first direction, the inclination angle in the second direction, the acceleration change in the second direction, the inclination angle in the third direction, and the acceleration change in the third direction.

[0101] The first direction, the second direction and the third direction are perpendicular to each other. Optionally, the first direction may be a horizontal direction, the second direction may be a horizontal direction perpendicular to the first direction, and the third direction may be a vertical direction perpendicular to the first direction and the second direction.

[0102] The acceleration change in the first direction characterizes the acceleration change of the anchor chain caused by external force in the first direction; the acceleration change in the second direction characterizes the acceleration change of the anchor chain caused by external force in the second direction; the acceleration change in the third direction characterizes the acceleration change of the anchor chain caused by external force in the third direction; the acceleration changes in different directions are very important for analyzing the dynamic response and force conditions of the anchor chain.

[0103] For example, in order to monitor the anchor chain posture, three coordinate axes in three-dimensional space, namely, the X-axis, the Y-axis and the Z-axis, can be defined to describe the tilt state of the anchor chain in space through the three-dimensional coordinate axes. The X-axis can characterize the tilt of the anchor chain left and right on the horizontal plane; the Y-axis can characterize the tilt of the anchor chain front and back on the horizontal plane; the Z-axis can characterize the deviation of the anchor chain from the vertical state, that is, the vertical tilt or settlement of the anchor chain. When the first direction is the X-axis direction, the second reverse direction is the Y-axis direction and the third direction is the Z-axis direction, the above-mentioned inclination data includes the inclination angle in the X-axis direction, the acceleration change in the X-axis direction, the inclination angle in the Y-axis direction, the acceleration change in the Y-axis direction, the inclination angle in the Z-axis direction and the acceleration change in the Z-axis direction.

[0104] Optionally, the tilt angle and acceleration variation in different directions may be obtained by different tilt sensors, that is, the tilt angle and acceleration variation of the anchor chain in the X-axis direction may be obtained by a tilt sensor arranged in the X-axis direction, the tilt angle and acceleration variation of the anchor chain in the Y-axis direction may be obtained by a tilt sensor arranged in the Y-axis direction, and the tilt angle and acceleration variation of the anchor chain in the Z-axis direction may be obtained by a tilt sensor arranged in the Z-axis direction. In the case where one tilt sensor obtains the tilt angle and acceleration variation in one direction, the tilt sensor is a single-axis tilt sensor.

[0105] Optionally, the tilt angles and acceleration changes in different directions may be acquired by one tilt sensor, that is, the tilt angles and acceleration changes of the anchor chain in the X-axis direction, the Y-axis direction, and the Z-axis direction may be acquired by one tilt sensor at the same time. When one tilt sensor acquires the tilt angles and acceleration changes in three different directions at the same time, the tilt sensor is a three-axis tilt sensor.

[0106] Optionally, when the monitoring terminal has a display interface, the inclination angle in the first direction, the acceleration change in the first direction, the inclination angle in the second direction, the acceleration change in the second direction, the inclination angle in the third direction and the acceleration change in the third direction can be displayed respectively in the display interface, so that the inclination data can be displayed in an all-round manner in the display interface for the monitoring personnel to determine the anchor chain posture in an all-round manner.

[0107] It is easy to understand that due to the complexity of the marine environment, cable routing in the marine environment is more difficult to lay than in the land environment. Therefore, in order to reduce the amount of hardware and reduce the difficulty of laying cable routing, a three-axis inclination sensor can be used to obtain the tilt angle and acceleration changes in three different directions.

[0108] In this embodiment, the inclination data includes the inclination angles and acceleration changes in three different directions. Therefore, through the all-round inclination data, the offset of the anchor chain relative to its expected position can be determined, based on which the external forces in the marine environment including wind force, wave force, current force, etc., which the anchor chain is subjected to can be analyzed. Furthermore, the inclination data of the anchor chain can be acquired in real time to monitor the anchor chain posture in real time, and the stability and safety of the offshore wind turbine platform can be ensured based on the more comprehensive inclination data of the anchor chain.

[0109] In an exemplary embodiment, the number of the above-mentioned buoy columns is 3, each buoy column is provided with 3 anchor chains, the number of inclination sensors is 9, the number of surface data transmission terminals is 3, and each surface data transmission terminal is responsible for 3 underwater data transmission terminals.

[0110] The following is a detailed example of an application scenario of the anchor chain posture monitoring system. Figure 2 The above anchor chain attitude monitoring system is applied to an offshore wind turbine platform including buoy column A, buoy column B and buoy column C, and the system includes:

[0111] 9 inclination sensors, inclination sensors A1, A2 and A3 are respectively tied to the three anchor chains of buoy column A, inclination sensors B1, B2 and B3 are respectively tied to the three anchor chains of buoy column B, inclination sensors C1, C2 and C3 are respectively tied to the three anchor chains of buoy column C; each inclination sensor is used to obtain the inclination data of the anchor chain tied thereto;

[0112] Among them, the inclination sensor A1, the inclination sensor B1 and the inclination sensor C1 are respectively used to obtain the inclination data of the anchor chain of the buoy column A in the X-axis direction, obtain the inclination data of the anchor chain of the buoy column B in the X-axis direction, and obtain the inclination data of the anchor chain of the buoy column C in the X-axis direction; the inclination sensor A2, the inclination sensor B2 and the inclination sensor C2 are respectively used to obtain the inclination data of the anchor chain of the buoy column A in the Y-axis direction, obtain the inclination data of the anchor chain of the buoy column B in the Y-axis direction, and obtain the inclination data of the anchor chain of the buoy column C in the Y-axis direction; the inclination sensor A3, the inclination sensor B3 and the inclination sensor C3 are respectively used to obtain the inclination data of the anchor chain of the buoy column A in the Z-axis direction, obtain the inclination data of the anchor chain of the buoy column B in the Z-axis direction, and obtain the inclination data of the anchor chain of the buoy column C in the Z-axis direction;

[0113] 3 data transmission terminals, each of which includes a surface data transmission terminal and 3 underwater data transmission terminals that each surface data transmission terminal is responsible for; the surface data transmission terminal R1, the surface data transmission terminal R2, and the surface data transmission terminal R3 are respectively arranged at a position close to the water surface below the buoy column A, a position close to the water surface below the buoy column B, and a position close to the water surface below the buoy column C, and each surface data transmission terminal is connected to the 3 underwater data transmission terminals that it is responsible for; each underwater data transmission terminal is arranged on the anchor chain and connected to the corresponding inclination sensor. Specifically, each anchor chain is provided with an underwater data transmission terminal and an inclination sensor, each underwater data transmission terminal and the corresponding inclination sensor are bundled together on each buoy column, each underwater data transmission terminal and the corresponding inclination sensor are connected to each other, and each underwater data transmission terminal is used to send the inclination data acquired by the corresponding inclination sensor to the data acquisition terminal through the corresponding surface data transmission terminal;

[0114] A data collection terminal is arranged on the buoy column C and connected to each surface data transmission terminal, and the data collection terminal is used to send at least one inclination data to the cloud server through a mobile communication base station;

[0115] The cloud server is used to receive at least one inclination data from the data acquisition terminal through a mobile communication base station, and is also used to store the at least one inclination data in a cloud database and send the at least one inclination data to the monitoring terminal.

[0116] A monitoring terminal is used to receive at least one inclination data and display at least one inclination data in a display interface so that a user using the monitoring terminal can observe at least one inclination data; wherein the at least one inclination data includes the inclination angles and acceleration changes of the three anchor chains of buoy column A in the X-axis direction, Y-axis direction and Z-axis direction, the inclination angles and acceleration changes of the three anchor chains of buoy column B in the X-axis direction, Y-axis direction and Z-axis direction, and the inclination angles and acceleration changes of the three anchor chains of buoy column C in the X-axis direction, Y-axis direction and Z-axis direction.

[0117] In this embodiment, the anchor chain attitude monitoring system includes 9 inclination sensors, which are respectively bundled on 3 anchor chains of 3 buoys. Therefore, the inclination data of the 9 anchor chains can be sent to the monitoring terminal through the underwater data transmission terminal, the surface data transmission terminal, the data acquisition terminal and the cloud server, thereby overcoming the problem of laying marine cables and realizing the user's long-term real-time monitoring of the anchor chain attitude. Furthermore, the safety and reliability of the offshore wind turbine platform can be ensured through accurate inclination data.

[0118] It can be understood that the above-mentioned anchor chain posture monitoring system can also adopt other forms, and is not limited to the forms mentioned in the above-mentioned embodiments, as long as it can achieve the function of monitoring the anchor chain posture for a long time.

[0119] In the description of this specification, the description with reference to the terms "some embodiments", "other embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic description of the above terms does not necessarily refer to the same embodiment or example.

[0120] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0121] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. An anchor chain attitude monitoring system, characterized in that: Applied to an offshore wind turbine platform including at least one buoy column, the system comprises: At least one inclination sensor, each inclination sensor is arranged on the anchor chain of the corresponding buoy column, and the inclination sensor is used to obtain inclination data of the anchor chain; At least one surface data transmission terminal and at least one underwater data transmission terminal that each of the surface data transmission terminals is responsible for; each surface data transmission terminal is respectively arranged on each buoy column and connected to at least one underwater data transmission terminal that it is responsible for; each underwater data transmission terminal is arranged on the anchor chain and connected to the corresponding inclination sensor, and the underwater data transmission terminal is used to send at least one inclination data to the data collection terminal through the corresponding surface data transmission terminal; A data acquisition terminal is arranged on the target buoy column and connected to each of the surface data transmission terminals, and the data acquisition terminal is used to send at least one of the inclination data to the monitoring terminal; The monitoring terminal is used to receive at least one of the inclination angle data.

2. The system according to claim 1, characterized in that The system further comprises: A cloud server, wherein the cloud server is used to receive at least one of the inclination data from the data acquisition terminal, and is also used to store at least one of the inclination data in a cloud database and send at least one of the inclination data to the monitoring terminal.

3. The system according to claim 2, characterized in that The monitoring terminal is further used to send a mode switching instruction to the cloud server, so that the cloud server sends the mode switching instruction to the data acquisition terminal; The data acquisition terminal is further used to determine the inclination data collection mode of each of the inclination sensors based on the mode switching instruction.

4. The system according to claim 3, characterized in that The tilt angle data collection mode is a normal working mode or a typhoon working mode; The inclination data collection frequency of the normal working mode is lower than that of the typhoon working mode, and the continuous working time of the normal working mode is higher than that of the typhoon working mode.

5. The system according to claim 4, characterized in that When the inclination data collection mode of each of the inclination sensors is the typhoon working mode, the inclination data collection mode is automatically switched to the normal working mode after the continuous working time reaches a preset time.

6. The system according to claim 1, characterized in that Each of the inclination sensors generates an alarm signal when the inclination data does not meet the preset conditions, and sends the inclination data to the monitoring terminal through each of the underwater data transmission terminals, the corresponding surface data transmission terminal and the data acquisition terminal.

7. The system according to claim 2, characterized in that The monitoring terminal is also used to send a sleep instruction or a wake-up instruction to the cloud server, so that the cloud server sends the sleep instruction or the wake-up instruction to each inclination sensor through the data acquisition terminal, each surface data transmission terminal and each underwater data transmission terminal, so that each inclination sensor enters the sleep mode based on the sleep instruction or wakes up from the sleep mode based on the wake-up instruction.

8. The system according to claim 4, characterized in that The monitoring terminal is also used to obtain current ocean data, so as to send a new mode switching instruction to the cloud server based on the current ocean data.

9. The system according to claim 6, characterized in that The monitoring terminal is also used to obtain current ocean data, so as to set new preset conditions based on the current ocean data so that each of the inclination sensors generates an alarm signal when the inclination data does not meet the new preset conditions.

10. The system according to claim 1, characterized in that The inclination data includes an inclination angle in a first direction, an acceleration change in the first direction, an inclination angle in a second direction, an acceleration change in the second direction, an inclination angle in a third direction, and an acceleration change in the third direction.

Images