Offshore water flow multi-dimensional monitoring system

By using a telescopic mechanism to carry sensor units in nearshore waters for multi-dimensional monitoring, combined with lateral and longitudinal sensor components, the problem of inaccurate monitoring in existing technologies is solved, achieving comprehensive and accurate monitoring of seawater flow direction and velocity. Furthermore, the stability and accuracy of the sensors are maintained through antifouling coatings and vibration cleaning components.

CN224399412UActive Publication Date: 2026-06-23POWERCHINA HUADONG ENG CORP LTD +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
POWERCHINA HUADONG ENG CORP LTD
Filing Date
2025-05-06
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

In existing technologies, a single monitoring point is insufficient to fully reflect the three-dimensional structural characteristics of seawater flow direction and velocity in the complex and ever-changing nearshore environment, resulting in inaccurate monitoring.

Method used

A telescopic mechanism is used to carry the sensor unit to move in seawater at different depths. Combined with lateral and longitudinal sensor components, it monitors the seawater flow velocity and direction, and interacts with and controls the data through a controller. Antifouling coating and vibration cleaning components are set to maintain the stability and accuracy of the sensors.

Benefits of technology

It achieves three-dimensional structural characteristics of seawater flow direction and velocity, improving the accuracy and comprehensiveness of monitoring, and ensures the stability and accuracy of the sensor through antifouling coating and vibration cleaning components.

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Abstract

The application relates to an offshore water flow multidimensional monitoring system and relates to the technical field of seawater monitoring.The system comprises a telescopic mechanism, a sensor unit and a controller, the sensor unit is arranged on the telescopic mechanism, the sensor unit is used for monitoring the flow direction and flow rate of seawater, the telescopic mechanism drives the sensor unit to move in seawater at different depths, and the controller is electrically connected with the sensor unit and the telescopic mechanism respectively to realize data interaction, control of detection of the sensor unit and telescopic operation of the telescopic mechanism.The application has the effect of improving the accuracy of monitoring of the flow direction and flow rate of seawater.
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Description

Technical Field

[0001] This application relates to the technical field of seawater monitoring, and in particular to a multi-dimensional monitoring system for nearshore water currents. Background Technology

[0002] Monitoring seawater flow direction and velocity is an important part of oceanographic research, and it is of great significance for understanding ocean dynamic processes, protecting the marine environment, ensuring safe navigation at sea, and developing marine resources.

[0003] In related technologies, the direction and speed of seawater flow are usually monitored by floating object tracking methods. Specially designed floaters are released on the sea surface, and their position changes are tracked by a positioning system to infer the direction and speed of the water flow.

[0004] Regarding the aforementioned technologies, using floaters to monitor the direction and velocity of seawater is not feasible in the complex and ever-changing nearshore environment. A single monitoring point cannot fully reflect the three-dimensional structural characteristics of the water flow, resulting in inaccurate monitoring of the direction and velocity of seawater. There is still room for improvement. Utility Model Content

[0005] To improve the accuracy of monitoring seawater flow direction and velocity, this application provides a multi-dimensional monitoring system for nearshore water flow.

[0006] This application provides a multi-dimensional monitoring system for nearshore water currents, employing the following technical solution:

[0007] A multi-dimensional monitoring system for nearshore water currents includes:

[0008] The system includes a telescopic mechanism, a sensor unit, and a controller. The sensor unit is mounted on the telescopic mechanism and is used to monitor the direction and velocity of seawater flow. The telescopic mechanism drives the sensor unit to move in seawater at different depths. The controller is electrically connected to both the sensor unit and the telescopic mechanism to exchange data and control the sensor unit's detection and the telescopic mechanism's extension and retraction.

[0009] By adopting the above technical solution, the controller controls the telescopic mechanism to move the sensor unit to seawater at different depths, so that the sensor unit can monitor the flow direction and velocity of seawater at different depths and transmit the monitoring data to the controller to reflect the three-dimensional structural characteristics of seawater, rather than monitoring from a single monitoring point, thereby improving the accuracy of monitoring seawater flow direction and velocity.

[0010] Optionally, the sensor unit includes a lateral sensor assembly and a longitudinal sensor assembly, wherein the lateral sensor assembly is disposed at the fixed end of the telescopic mechanism, and the longitudinal sensor assembly is disposed at the movable end of the telescopic mechanism.

[0011] By adopting the above technical solution, the lateral sensor component is set at the fixed end of the telescopic mechanism to capture the flow velocity and direction on the horizontal plane, while the longitudinal sensor component is inserted underwater to capture the water flow characteristics at different depths, thereby improving the comprehensiveness of monitoring seawater flow direction and velocity.

[0012] Optionally, both the lateral sensor assembly and the longitudinal sensor assembly include a flow velocity sensor and a flow direction sensor.

[0013] By adopting the above technical solution, the flow velocity sensor detects the flow velocity of the water, while the flow direction sensor detects the flow direction of the water, thereby improving the comprehensiveness of the detection of water flow characteristics.

[0014] Optionally, both the flow rate sensor and the flow direction sensor have an anti-fouling coating on their surfaces.

[0015] By adopting the above technical solution, an antifouling coating is applied to the surface of the flow velocity sensor and the flow direction sensor, thereby preventing organisms in the marine environment from attaching to the surface of the flow velocity sensor and the flow direction sensor and affecting the sensor detection accuracy, thus improving the protection of the sensor.

[0016] Optionally, the flow rate sensor and the flow direction sensor are provided with a vibration cleaning component, which drives the flow rate sensor and the flow direction sensor to vibrate to remove surface stains.

[0017] By adopting the above technical solution, the vibration of the vibration cleaning component is controlled, thereby driving the flow rate sensor and flow direction sensor to vibrate, so as to remove impurities attached to the sensor surface, thereby ensuring the stability and accuracy of sensor operation.

[0018] Optionally, it also includes a base for fixing the telescopic mechanism, wherein the fixed end of the telescopic mechanism is hinged to the base.

[0019] By adopting the above technical solution, the telescopic mechanism is fixed to the dock or bridge pier using a base, thereby ensuring the stability of the telescopic mechanism during operation. The telescopic mechanism is hinged to the base, allowing the telescopic mechanism to adjust its direction without being restricted by the fixed direction of the base.

[0020] Optionally, the base includes a fixed plate and a turntable, the turntable being rotatably connected to the fixed plate, and the fixed end of the telescopic mechanism being hinged to the turntable.

[0021] By adopting the above technical solution, the turntable drives the telescopic mechanism to rotate, and regardless of the direction in which the base is fixed, the telescopic mechanism can be made to penetrate deep into the water along the depth direction, thereby improving the convenience of fixing.

[0022] Optionally, it may also include a remote data management platform, which is communicatively connected to the controller for data interaction.

[0023] By adopting the above technical solution, the remote data management platform stores and processes the water flow direction and velocity data sent by the controller, enabling personnel to view it in real time and facilitating remote monitoring and management.

[0024] In summary, this application includes at least one of the following beneficial technical effects:

[0025] 1. By controlling the telescopic mechanism through the controller, the sensor unit is moved to seawater at different depths, so that the sensor unit can monitor the flow direction and velocity of seawater at different depths and transmit the monitoring data to the controller, so as to reflect the three-dimensional structural characteristics of seawater, rather than monitoring from a single monitoring point, thereby improving the accuracy of monitoring seawater flow direction and velocity.

[0026] 2. By setting the horizontal sensor assembly at the fixed end of the telescopic mechanism, the flow velocity and direction on the horizontal plane are captured, while the vertical sensor assembly is inserted underwater to capture the water flow characteristics at different depths, thereby improving the comprehensiveness of monitoring seawater flow direction and velocity.

[0027] 3. By controlling the vibration of the vibration cleaning component, the flow rate sensor and flow direction sensor are driven to vibrate, thereby removing impurities attached to the sensor surface and ensuring the stability and accuracy of sensor operation. Attached Figure Description

[0028] Figure 1 This is an overall schematic diagram of a near-shore water flow multi-dimensional monitoring system in an embodiment of this application.

[0029] Explanation of reference numerals in the attached drawings: 1. Telescopic mechanism; 2. Sensor unit; 21. Lateral sensor assembly; 22. Longitudinal sensor assembly; 211. Flow velocity sensor; 212. Flow direction sensor; 23. Anti-fouling coating; 24. Vibration cleaning assembly; 3. Controller; 4. Base; 41. Fixing plate; 42. Turntable; 5. Remote data management platform. Detailed Implementation

[0030] To make the purpose, technical solution, and advantages of this application clearer, the following description is provided in conjunction with the appendix. Figure 1 The present application will be further described in detail below with reference to embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the application.

[0031] Reference Figure 1This application discloses a multi-dimensional monitoring system for nearshore water currents, including a telescopic mechanism 1, a sensor unit 2, a controller 3, a base 4, and a remote data management platform 5. The sensor unit 2 is mounted on the telescopic mechanism 1 to monitor the direction and velocity of the water flow. The telescopic mechanism 1 drives the sensor unit 2 to move in seawater at different depths, enabling the sensor unit 2 to monitor the flow velocity and direction at different depths to establish three-dimensional characteristic data of the seawater. The base 4 is used to fix the telescopic mechanism 1 to ensure its stability. The fixed end of the telescopic mechanism 1 is hinged to the base 4, ensuring that the telescopic mechanism 1 can adjust its direction by rotation when the base 4 is fixed in different ways, so that the direction of the telescopic mechanism 1 always remains along the coastal water depth direction, thus adapting to more complex marine environments. The controller 3 is electrically connected to both the telescopic mechanism 1 and the sensor unit 2 to realize data interaction and control. The controller 3 is also connected to the remote data management platform 5, thereby sending the flow direction and velocity data monitored by the sensor unit 2 to the remote data management platform 5 for storage and real-time viewing and monitoring by personnel.

[0032] Reference Figure 1 Sensor unit 2 includes a lateral sensor assembly 21 and a longitudinal sensor assembly 22. Both the lateral sensor assembly 21 and the longitudinal sensor assembly 22 include a flow velocity sensor 211 and a flow direction sensor 212. The difference is that the lateral sensor assembly 21 is installed at the fixed end of the telescopic mechanism 1 to monitor the flow velocity and direction of water on the sea surface; while the longitudinal sensor is installed at the moving end of the telescopic mechanism 1 and enters the seawater at different depths through the drive of the telescopic mechanism 1 to monitor the flow direction and velocity of the seawater at different depths. By binding the longitudinal and lateral configurations of the sensors together, a multi-dimensional water flow monitoring network is constructed.

[0033] Both the flow velocity sensor 211 and the flow direction sensor 212 are coated with an antifouling coating 23. In this embodiment, the antifouling coating 23 can be replaced with copper-containing antifouling paint, self-polishing copolymer, low surface energy antifouling coating, biomimetic antifouling coating, biocide-free antifouling coating, or nanotechnology antifouling coating, etc., selected by the operator according to the actual situation. The antifouling coating 23 is applied to the surfaces of the flow velocity sensor 211 and the flow direction sensor 212 to address the problem of biofouling in the marine environment and ensure the stability and accuracy of the sensor operation.

[0034] A vibration cleaning assembly 24 is also installed on the flow velocity sensor 211 and the flow direction sensor 212. The vibration cleaning assembly 24 periodically removes particulate matter or deposits adhering to the surfaces of the flow velocity sensor 211 and the flow direction sensor 212 through mechanical vibration. The vibration cleaning assembly 24 can use miniature piezoelectric elements or electromagnetic actuators to generate high-frequency micro-vibrations, thereby driving the flow velocity sensor 211 and the flow direction sensor 212 to vibrate. The vibration cleaning assembly 24 is electrically connected to the controller 3, causing the controller 3 to start the vibration cleaning assembly 24 at regular intervals.

[0035] The flow velocity sensor 211 integrates ultrasonic time-of-flight measurement and capacitive sensing technology, enabling accurate measurement of water flow velocity under various flow conditions, maintaining high precision even in low-flow-rate or water bodies containing a large amount of suspended matter. The flow direction sensor 212 is based on the principle of magnetic field orientation, incorporating a magnetometer and a gyroscope. The magnetometer measures the strength and direction of the magnetic field in the environment. As water flows, it disturbs the surrounding magnetic field; the magnetometer captures these subtle magnetic field changes and analyzes them using a model of the Earth's magnetic field to infer the flow direction. The gyroscope provides angular velocity information to help determine the sensor's own attitude, ensuring that the measurement results are unaffected by the sensor's installation angle or external interference.

[0036] Reference Figure 1 The telescopic mechanism 1 includes a telescopic rod, a stepper motor, and an encoder. The telescopic rod is made of high-strength carbon fiber composite material, ensuring extremely high corrosion resistance and durability. It employs a sliding rail telescopic structure, enabling a wide range of extension from 1 meter to 100 meters. The stepper motor increases its output torque through a reduction gearbox, thereby adjusting the telescopic rod's extension length. The encoder detects the position and speed of the telescopic rod in real time, forming a closed-loop control.

[0037] Reference Figure 1 The base 4 includes a fixed plate 41 and a turntable 42. The turntable 42 is rotatably mounted on the fixed plate 41 via bearings, while the fixed end of the telescopic mechanism 1 is hinged to the turntable 42. When the fixed plate 41 is fixed to the bridge pier or wharf by bolts or other connecting parts, the telescopic mechanism 1 is fixed in place. Through the rotation of the turntable 42 and the flipping of the telescopic mechanism 1, the telescopic mechanism 1 is always extended into the water in the direction of the coastal water depth, thereby ensuring the accuracy of the monitoring direction and the stability during monitoring.

[0038] Reference Figure 1The controller 3 uses a high-performance microprocessor as its core, combined with an embedded operating system, to coordinate the work of various components, including but not limited to automatically controlling the telescopic mechanism 1, scheduling sensor measurement tasks, managing data encryption and decryption, and remotely transmitting data via a 4G module. The controller 3 supports online firmware upgrades to ensure continuous optimization of system functions with technological advancements. It is also equipped with multiple interfaces such as USB and Ethernet for easy data export and system maintenance. The remote data management platform 5 uses a cloud-based data receiving and processing platform, communicating with the controller 3 to receive real-time data from various sensors. It provides a user-friendly web interface, allowing users to log in anytime, anywhere to view and analyze data, set alarm thresholds, and perform real-time remote monitoring and management.

[0039] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Any feature disclosed in this specification (including the abstract and drawings) may be replaced by other equivalent or similar features unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is only one example of a series of equivalent or similar features.

Claims

1. A multi-dimensional monitoring system for nearshore water currents, characterized in that, The device includes a telescopic mechanism (1), a sensor unit (2), and a controller (3). The sensor unit (2) is mounted on the telescopic mechanism (1) and is used to monitor the direction and velocity of seawater flow. The telescopic mechanism (1) drives the sensor unit (2) to move in seawater at different depths. The controller (3) is electrically connected to the sensor unit (2) and the telescopic mechanism (1) respectively to perform data interaction and control the sensor unit (2) to detect and the telescopic mechanism (1) to extend and retract.

2. The nearshore water current multi-dimensional monitoring system according to claim 1, characterized in that, The sensor unit (2) includes a lateral sensor assembly (21) and a longitudinal sensor assembly (22). The lateral sensor assembly (21) is disposed at the fixed end of the telescopic mechanism (1), and the longitudinal sensor assembly (22) is disposed at the movable end of the telescopic mechanism (1).

3. The nearshore water current multi-dimensional monitoring system according to claim 2, characterized in that, Both the lateral sensor assembly (21) and the longitudinal sensor assembly (22) include a flow velocity sensor (211) and a flow direction sensor (212).

4. The nearshore water current multi-dimensional monitoring system according to claim 3, characterized in that, Both the flow velocity sensor (211) and the flow direction sensor (212) are provided with an anti-fouling coating (23).

5. A nearshore water current multi-dimensional monitoring system according to claim 3, characterized in that, The flow rate sensor (211) and flow direction sensor (212) are provided with a vibration cleaning assembly (24), which drives the flow rate sensor (211) and flow direction sensor (212) to vibrate to remove surface stains.

6. The nearshore water current multi-dimensional monitoring system according to claim 1, characterized in that, It also includes a base (4) for fixing the telescopic mechanism (1), the fixed end of which is hinged to the base (4).

7. A nearshore water current multi-dimensional monitoring system according to claim 6, characterized in that, The base (4) includes a fixed plate (41) and a turntable (42), the turntable (42) being rotatably connected to the fixed plate (41), and the fixed end of the telescopic mechanism (1) being hinged to the turntable (42).

8. A multi-dimensional monitoring system for nearshore water currents according to claim 1, characterized in that, It also includes a remote data management platform (5), which is communicatively connected to the controller (3) for data interaction.