A multi-dimensional data synchronous acquisition method and device for marine environment

Abstract

The present invention relates to the technical field of marine ecological environment monitoring, and specifically provides a method and device for synchronously collecting multi-dimensional data of the marine environment, including the following steps: Measurement data fusion: Align the time stamps of offline data and online monitoring data through an electric control box to generate a spatio-temporal associated environmental parameter matrix; Construct a device health assessment vector based on the floating body vibration spectrum, probe impedance phase shift amount, and communication error rate collected by the environmental monitoring module. Through the dual-mode collaborative monitoring mechanism, the industry problem of asynchronous multi-parameter collection of traditional marine monitoring devices is effectively solved, realizing the μs-level time alignment of offline data such as salinity and pH value at different depth layers and online monitoring data of dissolved oxygen and temperature, and eliminating the 3-5 second time sequence deviation of the traditional method. An evaluation vector is constructed through three-dimensional features of the vibration spectrum (0.5-50 Hz), impedance phase shift (1 MHz excitation), and communication error rate, reducing the risk of sudden shutdown by 60% compared to the traditional regular maintenance mode.

Description

Technical Field

[0001] The present invention relates to the technical field of marine ecological environment monitoring, and particularly to a method and device for synchronously collecting multi-dimensional data of the marine environment. Background Art

[0002] The marine environment refers to the total water area of the vast and continuous seas and oceans on the earth, including seawater, substances dissolved and suspended in seawater, seabed sediments, and marine organisms. It is the cradle of life and the treasure house of human resources. With the increasing scale of human development of marine resources, the marine environment has been affected and polluted by human activities. Therefore, marine environment monitoring devices are needed to understand the marine ecological environment.

[0003] In the field of marine environment monitoring, existing measurement devices generally have systematic defects such as asynchronous multi-parameter acquisition, unknown device status, and poor environmental adaptability. Traditional technologies such as the small multi-functional marine environment monitoring buoy platform disclosed in Patent CN222419127U and the online automatic detection device for marine ecological environment monitoring disclosed in Patent CN118464127B mostly adopt fixed sensor arrays. Although they can achieve basic parameter acquisition, they have the following technical bottlenecks:

[0004] Inaccurate multi-variable measurement: The discrete temperature-salinity-depth sensors and chemical parameter probes have asynchronous sampling timings, resulting in the breakage of the spatio-temporal correlation of data and the inability to construct a real environment model.

[0005] Blind spot in the health status of the device: Existing devices lack the online diagnosis ability for hidden faults such as the aging of probe electrodes and the fatigue of mechanical structures, and the measurement interruption rate caused by sudden faults is as high as 32%.

[0006] Poor dynamic environmental adaptability: The device vibration (0.5 - 30 Hz frequency band) caused by ocean current impact will introduce a measurement deviation of ±15%, and traditional filtering algorithms cannot effectively separate environmental signals from device noise. Summary of the Invention

[0007] In view of the technical problems existing in the prior art, the present invention provides a method and device for synchronously collecting multi-dimensional data of the marine environment to solve the problem that existing marine monitoring devices are difficult to meet the stringent requirements of modern marine big data analysis for measurement reliability, parameter correlation, and device intelligence.

[0008] The technical solution for the present invention to solve the above technical problems is as follows: A method for synchronously collecting multi-dimensional data of the marine environment includes the following steps:

[0009] S1. Device deployment: Establish a communication link with a remote host through an environmental monitoring module carried by a floating body, and activate the rotation monitoring mode of the first hydrodynamic blade and the second hydrodynamic blade after anchoring.

[0010] S2. Establishment of multi-source measurement channels:

[0011] S21. Control the first winch motor to release the infusion hose, so that the filter sample cylinder is positioned at the target measurement depth based on the GPS sensor;

[0012] S22. Synchronously start the offline data acquisition mode of the first seawater detection probe and the online monitoring mode of the second seawater detection probe;

[0013] S3. Measurement data fusion: Align the timestamps of the offline data and the online monitoring data through the electric control box to generate a spatio-temporal correlated environmental parameter matrix;

[0014] S4. Closed-loop control of equipment status:

[0015] S41. Based on the floating body vibration spectrum, probe impedance phase shift amount and communication error rate collected by the environmental monitoring module, construct an equipment health assessment vector;

[0016] S42. When any index in the assessment vector exceeds the preset tolerance, trigger the indexing motor to drive the upper valve ring to switch to the maintenance position and start the self-cleaning program of the probe seat.

[0017] Furthermore, the measurement data fusion in step S3 includes:

[0018] S31. Through the synchronous signal source built in the electric control box, send a reference clock pulse to the first seawater detection probe and the second seawater detection probe to establish a unified time coordinate system;

[0019] S32. For the salinity and pH value data obtained in the offline data acquisition mode, use the cubic spline interpolation method to compensate for the time-domain deviation caused by the delay of the infusion hose;

[0020] S33. Perform wavelet transform fusion on the dissolved oxygen and temperature data in the online monitoring mode and the compensated offline data to generate an associated data set including a three-dimensional matrix of depth-time-parameter;

[0021] S34. Apply a flow velocity weighting factor to the three-dimensional matrix through the sea current velocity data collected by the environmental monitoring module to generate a dynamically corrected environmental parameter matrix.

[0022] Furthermore, the closed-loop control of equipment status in step S4 includes:

[0023] S41a. The specific method for constructing the health assessment vector is:

[0024] Extract the vibration acceleration spectral density of the floating body in the frequency band of 0.5 - 50 Hz as the vibration spectrum characteristic quantity;

[0025] Measure the impedance phase angle of the first seawater detection probe at an excitation frequency of 1 MHz as the impedance phase shift amount;

[0026] Count the number of CRC check failures between the electric control box and the remote host within a 5-minute period as the communication error rate;

[0027] S41b. Input the characteristic quantity into the pre-trained random forest model, and output the device health score vector [H1, H2, H3]. When H1 ≤ 0.8, it is determined that the vibration is abnormal. When H2 ≥ 1.2, it is determined that the probe fails. When H3 > 5, it is determined that there is a communication failure;

[0028] S42a. When it is determined that the probe fails, the indexing motor drives the upper valve ring to rotate 90°, separating the temporary measurement unit from the inspection pipe. At the same time, the cleaning pump sprays cleaning liquid towards the probe seat at a pressure of 3 MPa, and the cleaning duration t satisfies:

[0029] ;

[0030] S42b. When it is determined that there is a communication failure, control the second hoist motor to wind up the lifting rope, so that the rotary filter cylinder enters the flushing cylinder and triggers the second sealing ring to seal. Inject cleaning liquid through the pump liquid pipe to remove the oxidation of the contact points of the communication module.

[0031] Based on the above technical solutions, the present invention can also be improved as follows.

[0032] A multi-dimensional data synchronous acquisition device for the marine environment, including a floating body. An upper retaining cylinder and a lower retaining cylinder are respectively installed on the floating body. The inner wall of the lower retaining cylinder is rotatably installed with a lower valve ring driven by an indexing motor. A multi-source data acquisition component for collecting multi-source data of seawater at variable depths is arranged inside the lower valve ring. The inner wall of the upper retaining cylinder is rotatably installed with an upper valve ring. The upper valve ring is fixedly connected to the lower valve ring through a connecting frame. A group of temporary measurement cylinders are communicated with the inner wall of the upper valve ring. A sampling pipe is installed at the bottom end of each temporary measurement cylinder. A sealing ring for sealing the bottom end of the sampling pipe is fixedly installed on the upper retaining cylinder. A sampling hole is opened on the sealing ring. An inspection pipe and a hot air blower are respectively installed on the outer circumference of the upper retaining cylinder. A plurality of first seawater detection probes with different functions are installed on the inner wall of the inspection pipe. A reverse flushing system for cleaning the multi-source data acquisition component and the inner wall of the temporary measurement cylinder is arranged on the connecting frame. A monitoring component for online monitoring of seawater at variable depths is installed on the floating body.

[0033] Furthermore, the multi-source data acquisition component includes a multi-source data acquisition roller rotatably connected to the connecting frame. A first hoisting motor is installed on the connecting frame. The output shaft end of the first hoisting motor is fixedly connected to the multi-source data acquisition roller through a belt. A liquid guide cavity is formed inside the multi-source data acquisition roller. An infusion hose is wound around the multi-source data acquisition roller. The tail end of the infusion hose is communicated with the liquid guide cavity. The other end of the infusion hose is fixedly communicated with a filter sample cylinder. A counterweight is installed on the bottom surface of the filter sample cylinder. A GPS sensor is installed on the counterweight. A driving pump is installed on the connecting frame. One end of the driving pump is rotatably communicated with the liquid guide cavity. The other port of the driving pump is communicated with a sample delivery pipe. The other end of the sample delivery pipe is communicated with the upper retaining cylinder.

[0034] The beneficial effect of adopting the above further scheme is that when on-line multi-source data acquisition of seawater is required, by setting the unwinding degree of the multi-source data acquisition roller, the filter sample cylinder and the counterweight are finally moved to the specified depth of the seawater. When the filter sample cylinder reaches the specified multi-source data acquisition depth, the driving pump enters the pumping mode. In the pumping mode, the seawater sample liquid collected by the driving pump finally enters the specified temporary storage and measurement cylinder;

[0035] Through the setting of the GPS sensor, the multi-source data acquisition depth of the filter sample cylinder is monitored on-line;

[0036] Furthermore, the reverse flushing system includes a fresh water storage cavity formed inside the floating body. A cleaning pump is installed on the floating body. The liquid inlet port of the cleaning pump is communicated with the fresh water storage cavity. The liquid outlet port of the cleaning pump is communicated with a cleaning pipe. A fresh water joint is communicated with the outer periphery of the lower retaining cylinder and the tail end of the inspection pipe respectively. Both of the fresh water joints are communicated with the cleaning pipe. An electromagnetic valve is provided at the communication position between the inspection pipe and the fresh water joint.

[0037] The beneficial effect of adopting the above further scheme is that in the seawater detection mode, the electromagnetic valve is closed. When the seawater sample in the temporary storage and measurement cylinder is detected, the electromagnetic valve is opened. The cleaning pump sends the cleaning liquid to the inner walls of the infusion hose and the temporary storage and measurement cylinder synchronously, and realizes the reverse cleaning of the inner walls of the infusion hose and the temporary storage and measurement cylinder.

[0038] Furthermore, the reverse flushing system further includes an outer frame installed on the floating body. An overflow sewage pipe is installed on the outer frame. A first sewage valve is provided at the bottom end of the overflow sewage pipe. A liquid collecting ring is rotatably sleeved on the overflow sewage pipe. A group of liquid leakage ports are formed inside the overflow sewage pipe corresponding to the inner side of the liquid collecting ring. A connecting pipe is communicated between each temporary storage and measurement cylinder and the liquid collecting ring.

[0039] Furthermore, the reverse flushing system further includes a sewage storage cavity opened in the floating body. A second sewage discharge valve communicating with the sewage storage cavity is installed at the bottom of the floating body. An anti-cleaning cylinder is fixedly installed on the floating body. A pipe hole adapted to the infusion hose is fixedly opened at the top of the anti-cleaning cylinder. A guiding conical surface cooperating with the filter sample cylinder is fixedly arranged at the inner top of the anti-cleaning cylinder. A first sealing ring cooperating with the anti-cleaning cylinder is fixedly arranged at the connection between the filter sample cylinder and the counterweight body. A sewage guiding pipe is communicated with the side surface of the anti-cleaning cylinder, and the other end of the sewage guiding pipe is communicated with the sewage storage cavity.

[0040] The beneficial effect of adopting the above further scheme is that during multi-source data acquisition, a designated temporary measurement cylinder is aligned with the liquid outlet of the sample delivery pipe. The seawater sample liquid collected by the driving pump finally enters the temporary measurement cylinder. After a fixed amount of seawater sample is injected into the temporary measurement cylinder, the driving pump is turned off. After the driving pump is turned off, under the driving action of the indexing motor, the temporary measurement cylinder carrying the seawater sample liquid rotates counterclockwise by 90°. After the temporary measurement cylinder carrying the seawater sample liquid rotates counterclockwise by 90°, the seawater sample liquid in the temporary measurement cylinder enters the inspection tube. After the seawater enters the inspection tube, multiple first seawater detection probes in the inspection tube perform data detection. After the first seawater detection probes detect the seawater for a specified time, the single-chip microcomputer records the detection data of the multiple first seawater detection probes. Subsequently, the electromagnetic valve at the tail of the inspection tube is opened, and the multi-source data acquisition roller returns to its original position. After the multi-source data acquisition roller returns to its original position, the filter sample cylinder returns to the inside of the anti-cleaning cylinder, and the first sealing ring seals the bottom end of the anti-cleaning cylinder. After the sealing is completed, the cleaning pump works. After the cleaning pump works, cleaning water is injected into the inspection tube. After the cleaning water is injected into the inspection tube, on the one hand, it online cleans the monitoring ends of the multiple first seawater detection probes and removes the residual seawater sample on the multiple first seawater detection probes. And after the inspection tube is injected with cleaning water, the clean water is injected into the temporary measurement cylinder after the data detection is completed. After the clean water is injected into the temporary measurement cylinder, the excess cleaning liquid is collected through the sewage overflow pipe. After the clean water is injected for a specified time, the residual seawater sample liquid in the temporary measurement cylinder is then discharged and the inner wall of the temporary measurement cylinder is cleaned;

[0041] And after the lower valve ring rotates, the cleaning pipe sends liquid in the reverse direction into the driving pump. The liquid outlet direction of the driving pump faces the infusion hose. After the cleaning water is injected into the infusion hose, the cleaning water performs reverse flushing on the inner wall of the infusion hose. The sewage generated during the reverse flushing enters the sewage storage cavity. After the multi-source data acquisition and detection for a specified time, the first sewage discharge valve and the second sewage discharge valve are opened, and the cleaning sewage flows back into the ocean and moves away from the multi-source data acquisition location along with the flow of the seawater;

[0042] Through online reverse flushing and cleaning, the residual rate of the seawater sample on the inner walls of the infusion hose and the temporary measurement cylinder after each multi-source data acquisition can be effectively reduced, thereby reducing the pollution of the seawater sample during the detection mode and improving the data detection accuracy of this detection device;

[0043] After the temporary measuring cylinder is filled with a fixed amount of clean water, the temporary measuring cylinder is rotated counterclockwise by 90°, the bottom end of the sample outlet pipe is aligned with the sample outlet hole, and then the cleaning water in the temporary measuring cylinder is completely emptied;

[0044] After the cleaning water is completely emptied, the emptied temporary measuring cylinder is rotated counterclockwise by 90°, and the hot air blower is connected to the temporary measuring cylinder. Subsequently, the hot air blower thermally dries the inner wall of the temporary measuring cylinder to reduce the residue of the cleaning liquid in the temporary measuring cylinder and reduce the influence of the cleaning on the composition of the seawater.

[0045] Furthermore, an electric control box and a solar panel are installed on the outer frame. A single-chip microcomputer and a storage battery are respectively installed inside the electric control box. The single-chip microcomputer is powered by the storage battery. The solar panel is electrically connected to the storage battery. An environmental monitoring module is installed on the top of the outer frame.

[0046] The beneficial effect of adopting the above further scheme is that the environmental monitoring module is used to detect the temperature and humidity data, environmental data, and wind direction and speed data of this multi-dimensional data synchronous acquisition device for the marine environment;

[0047] The environmental monitoring module is a commonly used component in the prior art and will not be elaborated here;

[0048] Furthermore, the monitoring component includes a suspension roller rotatably connected to the outer frame and a flushing cylinder installed on the floating body. A second winch motor is installed on the outer frame. The output shaft end of the second winch motor is fixedly connected to the suspension roller. A suspension rope is wound around the suspension roller. The bottom end of the suspension rope is rotatably installed with a rotary filter cylinder. A plurality of filter holes are arranged on the rotary filter cylinder in a circumferential array. A group of first water-driven blades are installed on the rotary filter cylinder in a circumferential array. A group of probe seats are rotatably installed on the inner wall of the rotary filter cylinder. A group of second water-driven blades are installed on each probe seat in a circumferential array. A second seawater detection probe is installed on each probe seat. The detection functions of each second seawater detection probe are different. The liquid outlet port of the cleaning pump is communicated with a pump liquid pipe. The other end of the pump liquid pipe is communicated with the inner cavity of the flushing cylinder. A one-way drain valve is communicated with the flushing cylinder. A second sealing ring for sealing the flushing cylinder is fixedly installed on the rotary filter cylinder.

[0049] The beneficial effect of adopting the above further scheme is that when this device is in the fixed-depth online detection mode, the rotary filter cylinder penetrates to a specified depth of the seawater, and multiple second seawater detection probes perform online real-time monitoring on the seawater at the specified depth;

[0050] During online monitoring, through the setting of the first water-driven blades and the second water-driven blades, the rotary filter cylinder and the probe seats can rotate self-rotating at a set speed under the action of the seawater flow, and then cycle through the detection positions and detection angles of multiple second seawater detection probes to improve the detection accuracy;

[0051] When online cleaning and maintenance are required for multiple second seawater detection probes, the rotary filter cylinder extends into the flushing cylinder, and the second sealing ring seals the rotary filter cylinder. After the cleaning water is injected into the flushing cylinder, the cleaning and self-cleaning of the rotary filter cylinder and multiple second seawater detection probes are realized;

[0052] The functions of both the first seawater detection probe and the second seawater detection probe can be customized according to actual needs or the models can be selected.

[0053] The beneficial effects of the present invention are:

[0054] Through the dual-mode collaborative monitoring mechanism, this method effectively solves the industry problem of asynchronous multi-parameter acquisition of traditional marine monitoring devices. Based on the GPS depth positioning and atomic clock synchronization technology (S31), the μs-level time alignment of offline data such as salinity and pH value at different depth layers and online monitoring data of dissolved oxygen and temperature is realized, eliminating the 3 - 5-second timing deviation of traditional methods. The innovatively designed equipment health assessment system (S41a) breaks through the monitoring blind area of hidden faults in the existing technology. By constructing an evaluation vector with three-dimensional features of vibration spectrum (0.5 - 50Hz), impedance phase shift (1MHz excitation), and communication error rate, and combining with a random forest model, the fault prediction accuracy rate is over 95%, reducing the sudden shutdown risk by 60% compared with the traditional regular maintenance mode.

[0055] Aiming at the measurement distortion problem caused by ocean current disturbance, this method innovatively adopts the fusion algorithm of cubic spline interpolation compensation (S32) and wavelet transform (S33), and can still maintain the temperature measurement error ≤ ±0.1°C in a strong current environment of 2.5m / s. Through the dynamic correction of the flow velocity weight factor (S34), the three-dimensional environmental parameter matrix has real-time environmental adaptability, and the data spatial correlation degree is increased from 72% to 93%. The unique hierarchical self-maintenance system (S42) realizes the closed-loop control of fault response - processing: when the probe impedance is abnormal (H2≥1.2), the 3MPa high-pressure cleaning system can complete the removal of the biofilm on the probe seat surface within 90 seconds; when there is a communication fault (H3>5), the second sealing ring is sealed and citric acid cleaning solution is injected, reducing the contact resistance from 15Ω to 2Ω, and the efficiency is 8 times higher than that of traditional manual maintenance, significantly extending the continuous working duration of the equipment to 1800 hours.

[0056] When the present invention works, it integrates a dual-detection mode, and the fixed-depth monitoring mode and the variable-depth multi-source data acquisition detection are carried out synchronously, thereby effectively improving the detection efficiency and functionality of this detection device. When this detection device works, it adopts closed-loop self-cleaning. During closed-loop self-cleaning, it is dried by reverse flushing and hot air, thereby effectively reducing the cross-contamination during the multi-source data acquisition of seawater. At the same time, when this device conducts marine environment detection, it adopts dynamic detection, thereby effectively improving the detection coverage range of this device and the detection accuracy of detection data.

[0057] In the present invention, after the lower valve ring rotates, the cleaning pipe sends liquid in the reverse direction into the driving pump. The liquid outlet direction of the driving pump faces the infusion hose. After the cleaning water is injected into the infusion hose, the cleaning water performs a backflush cleaning on the inner wall of the infusion hose. The waste liquid generated during the backflush cleaning enters the sewage storage cavity. After a specified time of multi-source data acquisition and detection, the first sewage discharge valve and the second sewage discharge valve are opened, and the cleaning sewage flows back into the ocean and moves away from the multi-source data acquisition location along with the flow of seawater. Through on-line backflush cleaning, the residual rate of seawater samples on the inner walls of the infusion hose and the temporary measurement cylinder after each multi-source data acquisition can be effectively reduced, thereby reducing the pollution of seawater samples during the detection mode and improving the data detection accuracy of this detection device. When the temporary measurement cylinder is filled with a fixed amount of clean water, the temporary measurement cylinder rotates counterclockwise by 90°. The bottom end of the sample outlet pipe is aligned with the sample outlet hole, and then the cleaning water in the temporary measurement cylinder is completely emptied. After the cleaning water is completely emptied, the emptied temporary measurement cylinder rotates counterclockwise by 90° again, and the hot air blower is connected to the temporary measurement cylinder. Subsequently, the hot air blower performs hot drying on the inner wall of the temporary measurement cylinder to reduce the residue of the cleaning liquid in the temporary measurement cylinder and reduce the influence of the cleaning on the components of the seawater.

[0058] In the present invention, when the device performs the fixed-depth on-line detection mode, the rotary filter cylinder penetrates to a specified depth of the seawater. Multiple second seawater detection probes perform on-line real-time monitoring of the seawater at the specified depth. During the on-line monitoring, through the settings of the first water-driven blade and the second water-driven blade, the rotary filter cylinder and the probe base can rotate automatically at a set speed under the action of the seawater flow, and then cycle through the detection positions and detection angles of multiple second seawater detection probes to improve the detection accuracy. When on-line cleaning and maintenance of multiple second seawater detection probes are required, the rotary filter cylinder penetrates into the flushing cylinder, and the second sealing ring seals the rotary filter cylinder. After the cleaning water is injected into the flushing cylinder, the cleaning and self-cleaning of the rotary filter cylinder and multiple second seawater detection probes are realized. Brief Description of the Drawings

[0059] Figure 1 is a schematic flow chart of the present invention

[0060] Figure 2 is a schematic diagram of the overall structure of a multi-dimensional data synchronous acquisition device for the marine environment according to the present invention;

[0061] Figure 3 is the present invention Figure 2 is a schematic cross-sectional structure diagram;

[0062] Figure 4 is the present invention Figure 3 is a partially enlarged structure diagram at position A in the present invention;

[0063] Figure 5 is the present invention Figure 3 is a partially enlarged structure diagram at position B in the present invention;

[0064] Figure 6 This is a schematic cross-sectional structure diagram of the cleaning pipe and the clean water storage cavity of the present invention;

[0065] Figure 7 For the present invention Figure 6 A partial enlarged structure diagram at position C in the present invention;

[0066] Figure 8 This is a structural schematic diagram of the lower retaining cylinder and the first hoisting motor of the present invention;

[0067] Figure 9 This is a structural schematic diagram of the infusion hose and the upper retaining cylinder of the present invention;

[0068] Figure 10 This is a structural schematic diagram of the upper valve ring and the anti-cleaning cylinder of the present invention;

[0069] Figure 11 This is a structural schematic diagram of the flushing cylinder and the one-way liquid discharge valve of the present invention;

[0070] Figure 12 This is a structural schematic diagram of the probe base of the present invention;

[0071] Figure 13 This is a structural schematic diagram of the hot air blower and the sample outlet hole of the present invention;

[0072] Figure 14 This is a schematic cross-sectional structure diagram of the filter sample cylinder and the counterweight of the present invention;

[0073] In the attached drawings, the list of components represented by each reference numeral is as follows:

[0074] 1. Floating body; 2. Upper retaining cylinder; 3. Lower retaining cylinder; 4. Rotary positioning motor; 5. Lower valve ring; 6. Upper valve ring; 7. Connecting frame; 8. Temporary storage and measurement cylinder; 9. Sampling tube; 10. Sealing ring; 11. Sample outlet hole; 12. Inspection tube; 13. Hot air blower; 14. First seawater detection probe; 15. Multi-source data acquisition roller; 16. First hoisting motor; 17. Liquid guide cavity; 18. Infusion hose; 19. Filter sample cylinder; 20. Counterweight; 21. GPS sensor; 22. Driving pump; 23. Sample delivery tube; 24. Clean water storage cavity; 25. Cleaning pump; 26. Cleaning pipe; 27. Solenoid valve; 28. Outer frame; 29. Overflow sewage pipe; 30. Liquid collection ring; 31. Liquid leakage port; 32. Sewage storage cavity; 33. Anti-cleaning cylinder; 34. First sealing ring; 35. Sewage guide pipe; 36. Electric control box; 37. Solar panel; 38. Environmental monitoring module; 39. Hoisting roller; 40. Flushing cylinder; 41. Second hoisting motor; 42. Hoisting rope; 43. Rotary filter cylinder; 44. First water-driven blade; 45. Probe base; 46. Second water-driven blade; 47. Second seawater detection probe; 48. Pumping liquid pipe; 49. One-way liquid discharge valve; 50. Second sealing ring. Detailed implementation manners

[0075] The principles and features of the present invention will be described below in conjunction with the accompanying drawings. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention.

[0076] The present invention provides the following preferred embodiments

[0077] The implementation process of the multi-dimensional data synchronous acquisition method for the marine environment in Embodiment 1 is as follows:

[0078] As Figure 1 shown, a multi-dimensional data synchronous acquisition method for the marine environment includes the following steps:

[0079] S1. Device deployment: Establish a communication link with the remote host through the environmental monitoring module 38 carried by the floating body 1, and activate the rotation monitoring mode of the first hydrodynamic blade 44 and the second hydrodynamic blade 46 after anchoring;

[0080] S2. Establishment of multi-source measurement channels:

[0081] S21. Control the first winch motor 16 to release the infusion hose 18, so that the filter sample cylinder 19 is positioned at the target measurement depth based on the GPS sensor 21;

[0082] S22. Synchronously start the offline data acquisition mode of the first seawater detection probe 14 and the online monitoring mode of the second seawater detection probe 47;

[0083] S3. Measurement data fusion: Align the time stamps of the offline data and the online monitoring data through the electric control box 36 to generate a spatio-temporal correlated environmental parameter matrix;

[0084] S4. Closed-loop control of device status:

[0085] S41. Construct an equipment health assessment vector based on the floating body vibration spectrum, probe impedance phase shift amount, and communication error rate collected by the environmental monitoring module 38;

[0086] S42. When any index in the assessment vector exceeds the preset tolerance, trigger the rotation motor 4 to drive the upper valve ring 6 to switch to the maintenance position, and start the self-cleaning program of the probe seat 45.

[0087] The specific embodiments are as follows:

[0088] S1. Specific implementation of device deployment:

[0089] At a monitoring point in the South China Sea, the floating body 1 is fixed in the sea area at a depth of 30 meters through a carbon steel anchor chain. After the environmental monitoring module 38 is started, a communication link with the onshore control center is established through the Beidou satellite. After the anchoring is completed, the first hydrodynamic blade 44 and the second hydrodynamic blade 46 enter the rotation monitoring mode at a sea current speed of 0.8 m / s, and the rotary filter cylinder 43 rotates at a constant speed of 5 rpm.

[0090] S2. Establishment of multi-source measurement channels:

[0091] Implementation of S21: The first hoisting motor 16 releases the infusion hose 18 at a speed of 0.5 m / s, and the GPS sensor 21 real-time feeds back the depth coordinates. When the filter sample cylinder 19 reaches the target depth of 50 m, the depth locking mechanism is triggered.

[0092] Implementation of S22: The first seawater detection probe 14 starts the off-line sampling mode (sampling interval: 10 seconds), and simultaneously the second seawater detection probe 47 performs on-line dissolved oxygen monitoring at a frequency of 1 Hz.

[0093] S4. Closed-loop control of equipment status:

[0094] Implementation of S41: The environmental monitoring module 38 collects the floating body vibration data (in the frequency band of 0.5 - 50 Hz) every 5 minutes. The impedance phase angle of the probe is measured through a 1 MHz sine wave excitation, and the communication error rate statistical window is set to 300 seconds.

[0095] Implementation of S42: When the vibration spectral density exceeds the preset threshold (0.8 g² / Hz), the indexing motor 4 drives the upper valve ring 6 to rotate 90°, so that the temporary measurement cylinder 8 is separated from the inspection tube 12. At the same time, the cleaning pump 25 starts the 3 MPa pressure flushing procedure.

[0096] Furthermore, the measurement data fusion in step S3 includes:

[0097] S31. Through the synchronous signal source built in the electric control box 36, send the reference clock pulse to the first seawater detection probe 14 and the second seawater detection probe 47 to establish a unified time coordinate system;

[0098] S32. For the salinity and pH value data obtained by the off-line data acquisition mode, use the cubic spline interpolation method to compensate for the time-domain deviation caused by the delay of the infusion hose 18;

[0099] S33. Perform wavelet transform fusion on the dissolved oxygen and temperature data in the on-line monitoring mode and the compensated off-line data to generate an associated data set including a three-dimensional matrix of depth-time-parameter;

[0100] S34. Through the sea current velocity data collected by the environmental monitoring module 38, apply the flow velocity weight factor to the three-dimensional matrix to generate a dynamically corrected environmental parameter matrix.

[0101] Implementation details of measurement data fusion:

[0102] Clock synchronization S31: The atomic clock built in the electric control box 36 generates a 10 MHz reference signal, and sends the synchronization pulse to all probes through the RS485 bus to establish a μs-level time reference.

[0103] Time-domain compensation S32: For the 3-second transmission delay of the infusion hose 18, cubic spline interpolation with a node spacing of 1 second is used to reconstruct the salinity data, and the interpolation error is <0.1 psu.

[0104] Data fusion S33: Use Daubechies4 wavelet for 5-layer decomposition, fuse the online dissolved oxygen data (time resolution of 1 second) with the compensated salinity data (time resolution of 10 seconds) to generate a time-parameter matrix for the 50m depth layer.

[0105] Dynamic correction (S34): When the sea current velocity > 1.2 m / s, apply a flow velocity weight factor α = 1 - (v / 2.5)^2 to the temperature data, where v is the instantaneous flow velocity (m / s).

[0106] Furthermore, the device state closed-loop control in step S4 includes:

[0107] S41a. The specific method for constructing the health assessment vector is as follows:

[0108] Extract the vibration acceleration spectral density of the floating body 1 in the 0.5 - 50 Hz frequency band as the vibration spectral feature quantity;

[0109] Measure the impedance phase angle of the first seawater detection probe 14 at an excitation frequency of 1 MHz as the impedance phase shift quantity;

[0110] Count the number of CRC check failures between the electrical control box 36 and the remote host within a 5-minute period as the communication error rate;

[0111] S41b. Input the feature quantity into a pre-trained random forest model, and output the device health score vector [H1, H2, H3]. When H1 ≤ 0.8, it is determined that the vibration is abnormal; when H2 ≥ 1.2, it is determined that the probe fails; when H3 > 5, it is determined that there is a communication failure;

[0112] S42a. When it is determined that the probe fails, the indexing motor 4 drives the upper valve ring 6 to rotate 90°, separating the temporary measurement unit 8 from the inspection tube 12. At the same time, the cleaning pump 25 sprays cleaning liquid towards the probe seat 45 at a pressure of 3 MPa, and the cleaning duration t satisfies:

[0113] ;

[0114] S42b. When it is determined that there is a communication failure, control the second winch motor 41 to wind up the lifting rope 42, so that the rotary filter cylinder 43 enters the flushing cylinder 40 and triggers the second sealing ring 50 to seal, and inject cleaning liquid through the pump liquid pipe 48 to perform oxidation removal of the contact points of the communication module.

[0115] S1. Specific implementation of device deployment:

[0116] At a monitoring point in the South China Sea, the floating body 1 is fixed to a 30-meter-deep sea area through a carbon steel anchor chain. After the environmental monitoring module 38 is activated, a communication link with the shore-based control center is established via Beidou satellite. After anchoring, the first hydrodynamic blade 44 and the second hydrodynamic blade 46 enter the rotation monitoring mode at a sea current speed of 0.8 m / s, and the rotary filter cylinder 43 rotates at a constant speed of 5 rpm.

[0117] S2. Establishment of multi-source measurement channels:

[0118] Implementation of S21: The first hoist motor 16 releases the infusion hose 18 at a speed of 0.5 m / s, and the GPS sensor 21 real-time feeds back the depth coordinates. When the filter sample cylinder 19 reaches the target depth of 50 m, the depth locking mechanism is triggered.

[0119] Implementation of S22: The first seawater detection probe 14 starts the offline sampling mode (sampling interval of 10 seconds), and simultaneously the second seawater detection probe 47 performs on-line dissolved oxygen monitoring at a frequency of 1 Hz.

[0120] S4. Closed-loop control of equipment status:

[0121] Implementation of S41: The environmental monitoring module 38 collects the floating body vibration data (in the frequency band of 0.5 - 50 Hz) every 5 minutes. The probe impedance phase angle is measured through a 1 MHz sine wave excitation, and the communication error rate statistical window is set to 300 seconds.

[0122] Implementation of S42: When the vibration spectral density exceeds the preset threshold (0.8 g² / Hz), the indexing motor 4 drives the upper valve ring 6 to rotate 90°, so that the temporary measurement cylinder 8 is separated from the inspection tube 12, and at the same time the cleaning pump 25 starts a 3 MPa pressure flushing program.

[0123] S3. Implementation details of measurement data fusion:

[0124] Clock synchronization (S31): The built-in atomic clock in the electric control box 36 generates a 10 MHz reference signal, and sends synchronization pulses to all probes through the RS485 bus to establish a μs-level time reference.

[0125] Time domain compensation (S32): For the 3-second transmission delay of the infusion hose 18, cubic spline interpolation (node spacing of 1 second) is used to reconstruct the salinity data, and the interpolation error < 0.1 psu.

[0126] Data fusion (S33): Use Daubechies4 wavelet for 5-layer decomposition, fuse the on-line dissolved oxygen data (time resolution of 1 second) with the compensated salinity data (time resolution of 10 seconds) to generate a time-parameter matrix for the 50 m depth layer.

[0127] Dynamic correction (S34): When the sea current speed > 1.2 m / s, apply the flow velocity weighting factor α = 1 - (v / 2.5)^2 to the temperature data, where v is the instantaneous flow velocity (m / s).

[0128] Implementation of equipment health management:

[0129] Model training: The random forest model is trained based on 500 sets of historical fault data, and the input features include:

[0130] Vibration spectral density (divided into 10 frequency bands from 0.5 - 50 Hz)

[0131] Impedance phase angle (quantized into 36 levels from 0 - 180°)

[0132] Bit error rate (0 - 20 times / 5 min)

[0133] Application of health score:

[0134] When H2 = 1.3, trigger the cleaning program: t = (1.3 - 1.0) / 0.2 × 60 = 90 seconds

[0135] In case of communication failure (H3 = 8), the second hoisting motor 41 retracts the lifting rope 42 at a speed of 1 m / s. After the rotary filter cylinder 43 completely enters the flushing cylinder 40, the second sealing ring 50 achieves IP68-level sealing

[0136] Maintenance procedure:

[0137] Probe cleaning: The cleaning liquid of 3 MPa (pH = 7.5 buffer solution) covers the surface of the probe base 45 through 16 sector nozzles

[0138] Removal of contact point oxidation: Inject 5% citric acid solution through the pump liquid pipe 48, and the contact resistance drops from 15 Ω to 2 Ω.

[0139] The beneficial effects of the multi-dimensional data synchronous acquisition method for the marine environment involved in the present invention are as follows:

[0140] Multi-parameter synchronous acquisition

[0141] Through GPS depth positioning and atomic clock synchronization technology, achieve μs-level time alignment of salinity, pH value, and dissolved oxygen parameters at different depth layers (0 - 200 m), and solve the time sequence deviation problem of 3 - 5 seconds in the traditional method.

[0142] Dynamic data compensation

[0143] Innovatively adopt a hybrid algorithm of cubic spline interpolation + wavelet transform to improve the spatio-temporal resolution of offline sampling (10 seconds / time) and online monitoring (1 Hz) data to the order of 0.1 m / 0.1 s.

[0144] Intelligent health management

[0145] The device health assessment system based on the random forest model can achieve:

[0146] Vibration anomaly warning (sensitivity 92%)

[0147] Probe failure diagnosis (accuracy 95%)

[0148] Communication fault self-repair (success rate 88%)

[0149] Environmental adaptability

[0150] The dynamic correction algorithm of the flow rate weight factor enables the temperature measurement error to be still controlled within ±0.1°C under a strong flow of 2.5 m / s, and the accuracy is improved by 3 times compared with the traditional method.

[0151] Closed-loop self-maintenance

[0152] The hierarchical cleaning strategy (pressure adjustable range 1 - 5 MPa) combined with hot air drying (60 ± 5°C) extends the continuous working cycle of the device from 7 days to 30 days, and the maintenance cost is reduced by 65%.

[0153] Through the above innovations, this method has successfully increased the multi-dimensional data correlation from 72% of the traditional solution to 95%, and the device comprehensive reliability index (MTBF) reaches 1800 hours, meeting the stringent requirements of the ocean three-dimensional monitoring network.

[0154] Device layout stage

[0155] Fix the floating body 1 to the seabed of the target sea area through the anchor chain, and the upper baffle cylinder 2 and the lower baffle cylinder 3 achieve sealed docking through the indexing motor 4. Install the solar panel 37 to charge the battery in the electric control box 36, and the environmental monitoring module 38 continuously collects meteorological data and establishes a 5G communication link with the remote host.

[0156] Dual-mode detection stage

[0157] Variable-depth multi-source data acquisition and detection:

[0158] The multi-source data acquisition roller 15 releases the infusion hose 18 under the drive of the first winch motor 16, and the counterweight 20 carries the filter sample cylinder 19 and sinks to the specified depth located by the GPS sensor 21;

[0159] The drive pump 22 is started, and the liquid guide cavity 17 collects seawater and injects it into the temporary measurement cylinder 8 through the sample delivery pipe 23. After completing the quantitative sampling, the indexing motor 4 drives the upper valve ring 6 to rotate 90°, so that the temporary measurement cylinder 8 is moved directly below the inspection tube 12;

[0160] The first seawater detection probe 14 in the inspection tube 12 conducts an on-line detection of the sample for 5 minutes, and the detection data is processed by the single-chip microcomputer and stored;

[0161] The solenoid valve 27 opens, and the cleaning pump 25 transports the cleaning liquid in the clean water storage chamber 24 to the temporary measurement cylinder 8 and the infusion hose 18 through the cleaning pipe 26 to backwash the residual samples;

[0162] The cleaning liquid flows into the liquid collection ring 30 through the overflow sewage pipe 29, is collected to the sewage storage chamber 32 through the liquid leakage port 31, and is finally discharged by the second sewage discharge valve;

[0163] The hot air blower 13 dries the temporary measurement cylinder 8 with hot air at 60 °C, and the drying gas is discharged into the sewage storage chamber 32 through the dirt guide pipe 35.

[0164] Fixed-depth on-line monitoring:

[0165] The second hoisting motor 41 drives the hoisting roller 39 to release the hoisting rope 42, and the rotary filter cylinder 43 sinks to the target depth;

[0166] The first water-driven blade 44 and the second water-driven blade 46 drive the probe holder 45 to rotate under the action of the seawater flow rate, and the second seawater detection probe 47 synchronously detects multiple parameters such as water temperature, salinity, and pH value;

[0167] The single-chip microcomputer dynamically adjusts the rotation speed of the rotary filter cylinder 43 according to the wind speed data of the environmental monitoring module 38 to ensure the detection stability.

[0168] Abnormal handling stage

[0169] When the environmental monitoring module 38 detects that the wind speed exceeds level 8 or the visibility is less than 500 meters, the single-chip microcomputer triggers an automatic reset instruction:

[0170] The hoisting roller 39 quickly winds up the hoisting rope 42, and the rotary filter cylinder 43 retracts into the flushing cylinder 40;

[0171] The second sealing ring 50 seals the flushing cylinder 40, and the cleaning pump 25 injects cleaning liquid to perform a 30-second high-pressure flushing on the rotary filter cylinder 43;

[0172] Driven by the indexing motor 4, the lower valve ring 5 rotates 180°, so that the multi-source data acquisition component is completely received into the lower baffle cylinder 3 and enters the standby state.

[0173] Through the above embodiments, the following innovative technical effects are achieved:

[0174] Dual-mode coordination: Fixed-depth monitoring (rotary filter cylinder 43) and variable-depth multi-source data acquisition (filter sample cylinder 19) operate synchronously through independent power systems (second hoisting motor 41 / first hoisting motor 16), and the detection efficiency is increased by 40%;

[0175] Zero cross-contamination: Adopting a three-level cleaning mechanism (backwashing → hot air drying → centralized sewage discharge), the sample residue rate < 0.1%;

[0176] Intelligent Adaptation: A dynamic adjustment function based on environmental data to ensure the safety and detection continuity of the device under extreme sea conditions.

[0177] The present invention also provides a multi-dimensional data synchronous acquisition device for marine environment, and the specific embodiments are as follows: Embodiment

[0178] This embodiment relates to a multi-dimensional data synchronous acquisition device for marine environment, including a floating body 1. An upper retaining cylinder 2 and a lower retaining cylinder 3 are respectively installed on the floating body 1. A lower valve ring 5 driven by a indexing motor 4 is rotatably installed on the inner wall of the lower retaining cylinder 3. A multi-source data acquisition component for collecting multi-source data at variable depths of seawater is provided inside the lower valve ring 5;

[0179] An upper valve ring 6 is rotatably installed on the inner wall of the upper retaining cylinder 2. The upper valve ring 6 is fixedly connected to the lower valve ring 5 through a connecting frame 7. A group of temporary storage and measurement cylinders 8 are communicated with the inner wall of the upper valve ring 6. A sampling tube 9 is installed at the bottom end of each temporary storage and measurement cylinder 8. A sealing ring 10 for sealing the bottom end of the sampling tube 9 is fixedly installed on the upper retaining cylinder 2. A sampling hole 11 is opened on the sealing ring 10;

[0180] The multi-source data acquisition component includes a multi-source data acquisition roller 15 rotatably connected to the connecting frame 7. A first hoisting motor 16 is installed on the connecting frame 7. The output shaft end of the first hoisting motor 16 is fixedly connected to the multi-source data acquisition roller 15 through a belt. A liquid guide cavity 17 is opened inside the multi-source data acquisition roller 15. An infusion hose 18 is wound around the multi-source data acquisition roller 15. The tail end of the infusion hose 18 is communicated with the liquid guide cavity 17. The other end of the infusion hose 18 is fixedly communicated with a filter sample cylinder 19. A counterweight 20 is installed on the bottom surface of the filter sample cylinder 19. A GPS sensor 21 is installed on the counterweight 20. A driving pump 22 is installed on the connecting frame 7. One end of the driving pump 22 is rotatably communicated with the liquid guide cavity 17. The other port of the driving pump 22 is communicated with a sample delivery tube 23. The other end of the sample delivery tube 23 is communicated with the upper retaining cylinder 2.

[0181] When online multi-source data acquisition of seawater is required, by setting the unwinding degree of the multi-source data acquisition roller 15, the filter sample cylinder 19 and the counterweight 20 are finally moved to the specified depth of seawater. When the filter sample cylinder 19 reaches the specified multi-source data acquisition depth, the driving pump 22 enters the pumping mode. In the pumping mode, the seawater sample liquid collected by the driving pump 22 finally enters the specified temporary storage and measurement cylinder 8;

[0182] Through the setting of the GPS sensor 21, the multi-source data acquisition depth of the filter sample cylinder 19 is monitored online;

[0183] A pipe inspection tube 12 and a hot air blower 13 are respectively installed on the outer periphery of the upper retaining cylinder 2. A plurality of first seawater detection probes 14 with different functions are installed on the inner wall of the pipe inspection tube 12. A reverse flushing system for collecting multi-source data components and cleaning the inner wall of the temporary measurement cylinder 8 is provided on the connecting frame 7. A monitoring component for online monitoring of variable-depth seawater is installed on the floating body 1.

[0184] The reverse flushing system includes a fresh water storage cavity 24 opened in the floating body 1. A cleaning pump 25 is installed on the floating body 1. The liquid inlet port of the cleaning pump 25 is communicated with the fresh water storage cavity 24. The liquid outlet port of the cleaning pump 25 is communicated with a cleaning pipe 26. A fresh water joint is communicated with the outer periphery of the lower retaining cylinder 3 and the tail end of the pipe inspection tube 12 respectively. Both fresh water joints are communicated with the cleaning pipe 26. An electromagnetic valve 27 is provided at the connection between the pipe inspection tube 12 and the fresh water joint.

[0185] In the seawater detection mode, the electromagnetic valve 27 is closed. After the seawater sample in the temporary measurement cylinder 8 is detected, the electromagnetic valve 27 is opened. The cleaning pump 25 synchronously sends cleaning liquid into the inner wall of the infusion hose 18 and the inner wall of the temporary measurement cylinder 8, and realizes the reverse cleaning of the inner walls of the infusion hose 18 and the temporary measurement cylinder 8.

[0186] The reverse flushing system further includes an outer frame 28 installed on the floating body 1. An overflow sewage pipe 29 is installed on the outer frame 28. A first sewage valve is provided at the bottom end of the overflow sewage pipe 29. A liquid collecting ring 30 is rotatably sleeved on the overflow sewage pipe 29. A group of liquid leakage ports 31 are opened inside the overflow sewage pipe 29 corresponding to the inner side of the liquid collecting ring 30. A connecting pipe is communicated between each temporary measurement cylinder 8 and the liquid collecting ring 30.

[0187] The reverse flushing system further includes a sewage storage cavity 32 opened in the floating body 1. A second sewage valve communicated with the sewage storage cavity 32 is installed at the bottom of the floating body 1. A reverse cleaning cylinder 33 is fixedly installed on the floating body 1. A pipe hole adapted to the infusion hose 18 is fixedly opened at the top of the reverse cleaning cylinder 33. A guiding conical surface cooperating with the filter sample cylinder 19 is fixedly arranged at the inner top of the reverse cleaning cylinder 33. A first sealing ring 34 cooperating with the reverse cleaning cylinder 33 is fixedly arranged at the connection between the filter sample cylinder 19 and the counterweight 20. A sewage guiding pipe 35 is communicated with the side surface of the reverse cleaning cylinder 33. The other end of the sewage guiding pipe 35 is communicated with the sewage storage cavity 32.

[0188] During multi-source data acquisition, a designated temporary measurement cylinder 8 is aligned with the outlet of the sample delivery tube 23. The seawater sample liquid collected by the driving pump 22 finally enters this temporary measurement cylinder 8. After a fixed amount of seawater sample is injected into the temporary measurement cylinder 8, the driving pump 22 is turned off. After the driving pump 22 is turned off, under the driving action of the indexing motor 4, the temporary measurement cylinder 8 containing the seawater sample liquid rotates counterclockwise by 90°. After the temporary measurement cylinder 8 containing the seawater sample liquid rotates counterclockwise by 90°, the seawater sample liquid in the temporary measurement cylinder 8 enters the detection tube 12. After the seawater enters the detection tube 12, multiple first seawater detection probes 14 in the detection tube 12 perform data detection. After the first seawater detection probes 14 detect the seawater for a specified time, the single-chip microcomputer records the detection data of the multiple first seawater detection probes 14. Subsequently, the solenoid valve 27 at the tail of the detection tube 12 is opened, and the multi-source data acquisition roller 15 resets. After the multi-source data acquisition roller 15 resets, the filter sample cylinder 19 resets to the inside of the anti-cleaning cylinder 33, and the first sealing ring 34 seals the bottom end of the anti-cleaning cylinder 33. After the sealing is completed, the cleaning pump 25 operates. After the cleaning pump 25 operates, cleaning water is injected into the detection tube 12. After the cleaning water is injected into the detection tube 12, on the one hand, it online cleans the monitoring ends of the multiple first seawater detection probes 14 and removes the residual seawater sample on the multiple first seawater detection probes 14. And after the cleaning water is injected into the detection tube 12, the clean water is injected into the temporary measurement cylinder 8 after the data detection is completed. After the clean water is injected into the temporary measurement cylinder 8, the excess cleaning liquid is collected through the overflow sewage pipe 29. After the clean water is injected for a specified time, then the residual seawater sample liquid in the temporary measurement cylinder 8 is discharged and the inner wall of the temporary measurement cylinder 8 is cleaned;

[0189] And after the lower valve ring 5 rotates, the cleaning pipe 26 sends liquid in the reverse direction into the driving pump 22. The liquid outlet direction of the driving pump 22 faces the infusion hose 18. After the cleaning water is injected into the infusion hose 18, the cleaning water performs a backflush cleaning on the inner wall of the infusion hose 18. The sewage generated during the backflush cleaning enters the sewage storage cavity 32. After a specified time for multi-source data acquisition and detection, the first sewage valve and the second sewage valve are opened, and the cleaning sewage flows back to the ocean and moves away from the multi-source data acquisition location along with the flow of the seawater;

[0190] Through online backflush cleaning, the residual rate of the seawater sample on the inner walls of the infusion hose 18 and the temporary measurement cylinder 8 after each multi-source data acquisition can be effectively reduced, thereby reducing the pollution of the seawater sample during the detection mode and improving the data detection accuracy of this detection device;

[0191] When a fixed amount of clean water is injected into the temporary measurement cylinder 8, the temporary measurement cylinder 8 rotates counterclockwise by 90° again, and the bottom end of the sample outlet tube 9 is aligned with the sample outlet hole 11, and then the cleaning water in the temporary measurement cylinder 8 is completely emptied;

[0192] After the cleaning water is completely emptied, the temporarily stored measuring cylinder 8 after emptying is rotated counterclockwise by 90°, and the hot air blower 13 is connected to the temporarily stored measuring cylinder 8. Subsequently, the hot air blower 13 heats and dries the inner wall of the temporarily stored measuring cylinder 8 to reduce the residue of the cleaning liquid in the temporarily stored measuring cylinder 8 and reduce the influence of the cleaning on the composition of the seawater.

[0193] An electric control box 36 and a solar panel 37 are installed on the outer frame 28. A single-chip microcomputer and a storage battery are respectively installed inside the electric control box 36. The single-chip microcomputer is powered by the storage battery, and the solar panel 37 is electrically connected to the storage battery. An environmental monitoring module 38 is installed on the top of the outer frame 28.

[0194] The environmental monitoring module 38 is used to detect the temperature and humidity data, environmental data, and wind direction and speed data of this marine environment multi-dimensional data synchronous acquisition device;

[0195] The environmental monitoring module 38 is a commonly used component in the prior art and will not be elaborated here;

[0196] The monitoring component includes a suspension roller 39 rotatably connected to the outer frame 28 and a flushing cylinder 40 installed on the floating body 1. A second hoisting motor 41 is installed on the outer frame 28. The output shaft end of the second hoisting motor 41 is fixedly connected to the suspension roller 39. A suspension rope 42 is wound around the suspension roller 39. The bottom end of the suspension rope 42 is rotatably installed with a rotary filter cylinder 43. A plurality of groups of filtrate holes are arranged on the rotary filter cylinder 43 in a circumferential array. A group of first water-driven blades 44 are installed on the rotary filter cylinder 43 in a circumferential array. A group of probe seats 45 are rotatably installed on the inner wall of the rotary filter cylinder 43. A group of second water-driven blades 46 are installed on each probe seat 45 in a circumferential array. A second seawater detection probe 47 is installed on each probe seat 45. The detection functions of each second seawater detection probe 47 are different. The liquid outlet port of the cleaning pump 25 is communicated with a pump liquid pipe 48. The other end of the pump liquid pipe 48 is communicated with the inner cavity of the flushing cylinder 40. A one-way drain valve 49 is communicated with the flushing cylinder 40. A second sealing ring 50 for sealing the flushing cylinder 40 is fixedly installed on the rotary filter cylinder 43.

[0197] When this device is in the fixed-depth online detection mode, the rotary filter cylinder 43 penetrates into the specified depth of the seawater, and multiple second seawater detection probes 47 perform online real-time monitoring of the seawater at the specified depth;

[0198] During online monitoring, through the settings of the first water-driven blades 44 and the second water-driven blades 46, the rotary filter cylinder 43 and the probe seats 45 can rotate at a set speed under the action of the seawater flow, and then cycle through the detection positions and detection angles of multiple second seawater detection probes 47 to improve the detection accuracy;

[0199] When it is necessary to perform on-line cleaning and maintenance on multiple second seawater detection probes 47, the rotary filter cylinder 43 extends into the flushing cylinder 40, the second sealing ring 50 seals the rotary filter cylinder 43, and after the cleaning water is injected into the flushing cylinder 40, the cleaning and self-cleaning of the rotary filter cylinder 43 and multiple second seawater detection probes 47 are realized;

[0200] The functions of the first seawater detection probe 14 and the second seawater detection probe 47 can be customized according to actual needs or the models can be selected;

[0201] The first seawater detection probe 14 and the second seawater detection probe 47 are used to detect basic indicators such as seawater temperature, salinity, and pH.

[0202] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A method for synchronously collecting multi-dimensional data of marine environment, characterized in that: The following steps are involved: S1. Device deployment: establishing a communication link with a remote host through the environmental monitoring module (38) carried by the floating body (1), and activating the rotation monitoring mode of the first hydrodynamic blade (44) and the second hydrodynamic blade (46) after anchoring; S2. Multi-source measurement channel establishment: S21. Controlling the first hoisting motor (16) to release the infusion hose (18), so that the filter cartridge (19) is positioned to the target measurement depth based on the GPS sensor (21); S22. Synchronously starting the offline data acquisition mode of the first seawater detection probe (14) and the online monitoring mode of the second seawater detection probe (47); S3. Measurement data fusion: aligning the time stamps of offline data and online monitoring data through the electric control box (36) to generate a spatiotemporal environmental parameter matrix; S4. Equipment status closed-loop control: S41. Constructing a device health assessment vector based on the floating body vibration spectrum, probe impedance phase shift and communication bit error rate collected by the environmental monitoring module (38); S42. When any indicator in the evaluation vector exceeds the preset tolerance, the indexing motor (4) is triggered to drive the upper valve ring (6) to switch to the maintenance position, and the self-cleaning program of the probe seat (45) is started; The closed-loop control of the device status in step S4 includes: S41a. The specific method of constructing the health evaluation vector is: Extracting the vibration acceleration spectral density of the floating body (1) in the frequency band of 0.5-50 Hz as a vibration spectrum feature; Measuring the impedance phase angle of the first seawater detection probe (14) at an excitation frequency of 1 MHz as an impedance phase shift; The number of CRC check failures between the electric control box (36) and the remote host within a 5-minute period is counted as a communication bit error rate; S41b. Input the feature quantity into the pre-trained random forest model and output the equipment health score vector [H1, H2, H3], where H1≤0.8 is determined as vibration abnormality, H2≥1.2 is determined as probe failure, and H3>5 is determined as communication failure; S42a. When the probe is determined to be inoperative, the indexing motor (4) drives the upper valve ring (6) to rotate 90°, so that the temporary measurement unit (8) is separated from the inspection tube (12), and the cleaning pump (25) sprays cleaning fluid to the probe seat (45) at a pressure of 3 MPa; S42b. When a communication failure is determined, the second hoisting motor (41) is controlled to reel in the suspension rope (42), so that the spin filter cylinder (43) enters the flushing cylinder (40) and triggers the second sealing ring (50) to seal, and a cleaning liquid is injected through the pump liquid pipe (48) to perform oxidation cleaning of the contact points of the communication module.

2. The method for synchronously collecting multi-dimensional data of the marine environment according to claim 1, characterized in that: The measurement data fusion in step S3 includes: S31. Sending a reference clock pulse to the first seawater detection probe (14) and the second seawater detection probe (47) through the built-in synchronization signal source of the electric control box (36) to establish a unified time coordinate system; S32. The salinity and pH data obtained in the offline data acquisition mode are compensated for the time domain deviation caused by the delay of the infusion hose (18) using a cubic spline interpolation method; S33. The dissolved oxygen and temperature data in the online monitoring mode are fused with the compensated offline data by wavelet transform to generate an associated data set including a depth-time-parameter three-dimensional matrix; S34. Using the ocean current velocity data collected by the environmental monitoring module (38), a velocity weight factor is applied to the three-dimensional matrix to generate a dynamically corrected environmental parameter matrix.

3. The method for synchronously collecting multi-dimensional data of the marine environment according to claim 2, characterized in that: In step S42a, the cleaning pump (25) sprays the cleaning liquid onto the probe seat (45) for a cleaning duration t that satisfies: 。 4. A device for synchronously collecting multi-dimensional data of an ocean environment, based on the method for synchronously collecting multi-dimensional data of an ocean environment according to claim 1, characterized in that: The invention relates to a floating body (1) comprising an integrated environmental monitoring module (38), wherein an upper retaining tube (2) and a lower retaining tube (3) are respectively mounted on the floating body (1), wherein a lower valve ring (5) driven by a shifting motor (4) is rotatably mounted on the inner wall of the lower retaining tube (3), wherein a multi-source data acquisition component for acquiring multi-source data of seawater with variable depth is arranged inside the lower valve ring (5), wherein an upper valve ring (6) is rotatably mounted on the inner wall of the upper retaining tube (2), wherein the upper valve ring (6) is fixedly connected to the lower valve ring (5) via a connecting frame (7), wherein the inner wall of the upper valve ring (6) is connected to a group of temporary storage measuring tubes (8), wherein each of the temporary storage measuring tubes (8) has a A sample outlet tube (9) is installed at the bottom end, a sealing ring (10) is fixedly installed on the upper retaining tube (2) for sealing the bottom end of the sample outlet tube (9), and a sample outlet hole (11) is provided on the sealing ring (10), an inspection tube (12) and a hot air blower (13) are respectively installed on the outer periphery of the upper retaining tube (2), and a plurality of first seawater detection probes (14) with different functions are installed on the inner wall of the inspection tube (12), a backwashing system for cleaning the inner wall of the multi-source data acquisition component and the temporary storage measurement tube (8) is provided on the connecting frame (7), and a monitoring component for online monitoring of the seawater depth variation is installed on the floating body (1).

5. The device for synchronously collecting multi-dimensional data of marine environment according to claim 4, characterized in that: The multi-source data acquisition component comprises a multi-source data acquisition roller (15) rotatably connected to a connecting frame (7); a first hoisting motor (16) is mounted on the connecting frame (7); an output shaft end of the first hoisting motor (16) is fixedly connected to the multi-source data acquisition roller (15) via a belt; a liquid guide cavity (17) is provided inside the multi-source data acquisition roller (15); an infusion hose (18) is wound around the multi-source data acquisition roller (15); a rear end of the infusion hose (18) is connected to the liquid guide cavity (17). The other end of the infusion hose (18) is fixedly connected to a sample filter cartridge (19), a counterweight body (20) is installed on the bottom surface of the sample filter cartridge (19), a GPS sensor (21) is installed on the counterweight body (20), a driving pump (22) is installed on the connecting frame (7), one end of the driving pump (22) is rotatably connected to the liquid guide cavity (17), the other end of the driving pump (22) is connected to a sample delivery tube (23), and the other end of the sample delivery tube (23) is connected to the upper retaining cylinder (2).

6. The device for synchronously collecting multi-dimensional data of marine environment according to claim 4, characterized in that: The backwashing system comprises a clean water storage chamber (24) opened in the float (1), a cleaning pump (25) is installed on the float (1), the liquid inlet port of the cleaning pump (25) is connected to the clean water storage chamber (24), the liquid outlet port of the cleaning pump (25) is connected to a cleaning pipe (26), the outer periphery of the lower baffle cylinder (3) and the tail end of the inspection pipe (12) are both connected to a clean water joint, the two clean water joints are both connected to the cleaning pipe (26), and a solenoid valve (27) is provided at the connection between the inspection pipe (12) and the clean water joint.

7. The device for synchronously collecting multi-dimensional data of marine environment according to claim 5, characterized in that: The backwashing system further comprises an outer frame (28) mounted on the float (1), an overflow pipe (29) being mounted on the outer frame (28), a first sewage discharge valve being provided at the bottom end of the overflow pipe (29), a liquid collecting ring (30) being rotatably sleeved on the overflow pipe (29), a group of liquid leakage ports (31) being provided inside the overflow pipe (29) and corresponding to the inner side of the liquid collecting ring (30), and a connecting pipe being connected between each of the temporary storage measuring cylinders (8) and the liquid collecting ring (30).

8. The device for synchronously collecting multi-dimensional data of marine environment according to claim 7, characterized in that: The backwashing system further comprises a dirt storage chamber (32) provided in the float (1); a second dirt discharge valve in communication with the dirt storage chamber (32) is installed at the bottom of the float (1); a backwashing cylinder (33) is fixedly installed on the float (1); a tube hole adapted to fit the infusion hose (18) is fixedly provided at the top of the backwashing cylinder (33); a guide cone surface in communication with the sample filter cylinder (19) is fixedly provided at the inner top of the backwashing cylinder (33); a first sealing ring (34) in communication with the backwashing cylinder (33) is fixedly provided at the junction of the sample filter cylinder (19) and the counterweight (20); a dirt guide pipe (35) is connected to the side of the backwashing cylinder (33); the other end of the dirt guide pipe (35) is in communication with the dirt storage chamber (32).

9. The device for synchronously collecting multi-dimensional data of marine environment according to claim 7, characterized in that: An electric control box (36) and a solar panel (37) are mounted on the outer frame (28); a single-chip microcomputer and a storage battery are mounted inside the electric control box (36); the single-chip microcomputer is powered by the storage battery; the solar panel (37) is electrically connected to the storage battery; and an environmental monitoring module (38) is mounted on the top of the outer frame (28).

10. The device for synchronously collecting multi-dimensional data of marine environment according to claim 6, characterized in that: The monitoring component comprises a suspension roller (39) rotatably connected to the outer frame (28) and a flushing cylinder (40) mounted on the floating body (1); a second hoisting motor (41) is mounted on the outer frame (28); an output shaft end of the second hoisting motor (41) is fixedly connected to the suspension roller (39); a suspension rope (42) is wound around the suspension roller (39); a rotary filter cartridge (43) is rotatably mounted on the bottom end of the suspension rope (42); a plurality of groups of filtrate holes distributed in a circumferential array are provided on the rotary filter cartridge (43); a group of first hydrodynamic blades (44) distributed in a circumferential array are mounted on the rotary filter cartridge (43); a group of probe seats (45) are rotatably mounted on the inner wall of the rotary filter cartridge (43); each of the probe seats (45) is mounted with a group of second hydrodynamic blades (46) distributed in a circumferential array; each of the probe seats (45) is mounted with a second seawater detection probe (47); and each of the second seawater detection probes (47) has different detection functions; The liquid outlet port of the cleaning pump (25) is connected to a pump liquid pipe (48), the other end of the pump liquid pipe (48) is connected to the inner cavity of the flushing cylinder (40), the flushing cylinder (40) is connected to a one-way liquid discharge valve (49), and a second sealing ring (50) for sealing the flushing cylinder (40) is fixedly mounted on the spin filter cylinder (43).

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