Multi-dimensional wireless monitoring device for offshore floating fan

Abstract

The invention relates to an offshore floating fan multi-dimensional wireless monitoring device, which comprises a shell, a double-helix monitoring sensor and a data monitoring system, and is characterized in that the shell is fixedly arranged on an offshore floating fan platform, and the shell comprises a closed wall surface and a mounting cavity enclosed by the wall surface; the double-helix monitoring sensor is located in the mounting cavity, one end, in the axial direction, of the double-helix monitoring sensor is fixed to the wall face of the shell, the double-helix monitoring sensor is of a multi-layer double-helix structure, and the double-helix structures of the adjacent layers can be relatively separated and make contact with each other; the double-helix structure comprises a conductive layer and a dielectric layer which are arranged along the thickness direction; the data monitoring system is located in the installation cavity, the signal input end of the data monitoring system is electrically connected with the double-helix monitoring sensor, and the signal output end of the data monitoring system is in data connection with the server. The multi-dimensional wireless monitoring device for the offshore floating type wind turbine can more accurately monitor the state of the offshore wind turbine.

Description

Technical Field

[0001] The present application relates to the technical field of marine engineering monitoring, and in particular to a multi-dimensional wireless monitoring device for offshore floating wind turbines. Background Art

[0002] Offshore wind turbines play an increasingly important role in supporting the transformation of traditional energy structures and promoting the development of the marine economy. However, offshore wind turbine structures have been in harsh marine environments for a long time, and complex natural conditions have brought many challenges to the operation and maintenance of offshore wind turbines. Traditional operation and maintenance of offshore wind turbines faces challenges such as high costs and high risks of manual inspections. Traditional monitoring equipment has problems such as high manufacturing costs, low sensitivity, and clumsiness. As the above problems of traditional monitors become more serious, the development of accurate monitoring equipment has become an important guarantee for the large-scale construction of offshore wind power and the realization of full life cycle monitoring. Summary of the invention

[0003] The present application provides a multi-dimensional wireless monitoring device for an offshore floating wind turbine, which can monitor the status of the offshore wind turbine more accurately.

[0004] The multi-dimensional wireless monitoring device for an offshore floating wind turbine provided by the present application comprises: a housing, the housing being fixedly arranged on an offshore floating wind turbine platform, the housing comprising a closed wall surface, and an installation cavity formed by the wall surface;

[0005] A double helix monitoring sensor, wherein the double helix monitoring sensor is located in the installation cavity, and one end of the double helix monitoring sensor along the axial direction is fixed to the wall surface of the shell, and the double helix monitoring sensor is a multi-layer double helix structure, and the double helix structures of adjacent layers can be relatively separated and contacted; the double helix structure includes a conductive layer and a dielectric layer arranged along the thickness direction;

[0006] A data monitoring system, wherein the data monitoring system is located in the installation cavity, the signal input end of the data monitoring system is electrically connected to the double-helix monitoring sensor, and the signal output end of the data monitoring system is connected to the server data.

[0007] In addition, the multi-dimensional wireless monitoring device for offshore floating wind turbines provided by the present application may also have the following additional technical features:

[0008] In an optional solution, the conductive layer is made of carbon black polylactic acid, and the dielectric layer is made of thermoplastic polyurethane elastomer; the double-helix monitoring sensor is integrally printed by a 3D printer.

[0009] In an optional scheme, any two of the double helix structures in adjacent layers are electrically connected to the data monitoring system via wires; a guide tube is provided on the wall of the shell, the length direction of the guide tube extends along the axial direction of the double helix monitoring sensor and is sleeved in the cavity of the double helix monitoring sensor, and the side wall of the guide tube is provided with a through hole for the wire to pass through.

[0010] In an optional solution, the shell is an acrylic tube shell, the shell is a hollow cylindrical structure, and a waterproof cover with a sealing strip is provided at one axial end of the shell, and the waterproof cover can open and close the installation cavity.

[0011] In an optional solution, when the offshore floating wind turbine platform is displaced and / or vibrates, adjacent double helix structures of the double helix monitoring sensor separate and contact multiple times, charge transfer occurs and electrical signals are generated, and the data monitoring system receives the generated electrical signals and performs analysis, early warning and wireless data transmission.

[0012] In an optional solution, the data monitoring system is preset with a voltage threshold during operation, and when the voltage generated by the double-helix monitoring sensor exceeds the voltage threshold, the data monitoring system issues an early warning.

[0013] In an optional solution, the data monitoring system includes a data acquisition chip and a signal processing and early warning module. The data acquisition chip is used to collect signals, and the signal processing and early warning module is used to receive the collected data and perform early warning and data transmission.

[0014] The beneficial effects of this application are:

[0015] The multi-dimensional wireless monitoring device for offshore floating wind turbines in this application includes a double-helix monitoring sensor, a data monitoring system and a shell. The double-helix monitoring sensor uses the TENG contact separation electrification principle to convert the kinetic potential energy of the offshore floating wind turbine platform into a continuous electrical signal. The data monitoring system processes and stores the collected voltage signals in real time and transmits the collected signals to a remote end for visual analysis of the monitoring results. When the voltage signal is higher than the set voltage threshold, an early warning is issued. The entire monitoring device has high monitoring sensitivity and low cost, and can perform more accurate monitoring of marine engineering structures.

[0016] It should be understood that the foregoing general description and the following detailed description are exemplary only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the overall structure of the multi-dimensional wireless monitoring device for offshore floating wind turbines provided in this application;

[0018] Figure 2 A schematic diagram of the structure of the double helix monitoring sensor provided for this application;

[0019] Figure 3 A schematic diagram of the structure of the data monitoring system provided for this application;

[0020] Figure 4 It is a schematic diagram of the deformation process and sensing principle of the double helix monitoring sensor;

[0021] Figure 5 Schematic diagram of the working scenario of the multi-dimensional wireless monitoring device for offshore floating wind turbines.

[0022] Figure numerals: shell 1, installation cavity 11, guide tube 12, waterproof cover 13, offshore floating wind turbine platform 2, double helix monitoring sensor 3, double helix structure 31, conductive layer 311, dielectric layer 312, data monitoring system 4, data acquisition chip 41, signal processing and early warning module 42.

[0023] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application. DETAILED DESCRIPTION

[0024] In order to better understand the technical solution of the present application, the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0025] It should be clear that the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other technical solutions obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0026] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. The singular forms "a", "said" and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings.

[0027] It should be understood that the term "and / or" used in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0028] It should be noted that the directional words such as "upper", "lower", "left", and "right" described in the embodiments of the present application are described at the angles shown in the accompanying drawings and should not be understood as limiting the embodiments of the present application. In addition, in the context, it is also necessary to understand that when it is mentioned that an element is connected to another element "upper" or "lower", it can not only be directly connected to another element "upper" or "lower", but also indirectly connected to another element "upper" or "lower" through an intermediate element.

[0029] like Figure 1-5 As shown, the embodiment of the present application provides a multi-dimensional wireless monitoring device for an offshore floating wind turbine, which mainly includes a shell 1, a double helix monitoring sensor 3 and a data monitoring system 4. Among them, the shell 1 is fixedly arranged on the offshore floating wind turbine platform 2, and the shell 1 includes a closed wall surface and an installation cavity 11 formed by the wall surface; the double helix monitoring sensor 3 is located in the installation cavity 11, and one end of the double helix monitoring sensor 3 along the axial direction is fixed to the wall surface of the shell 1, and the double helix monitoring sensor 3 is a multi-layer double helix structure 31, and the double helix structures 31 of adjacent layers can be separated and contacted; the double helix structure 31 includes a conductive layer 311 and a dielectric layer 312 arranged along the thickness direction; the data monitoring system 4 is located in the installation cavity 11, and the signal input end of the data monitoring system 4 is electrically connected to the double helix monitoring sensor 3, and the signal output end of the data monitoring system 4 is connected to the server data.

[0030] The multi-dimensional wireless monitoring device for offshore floating wind turbines in this embodiment includes a double-helix monitoring sensor 3, a data monitoring system 4 and a shell 1. The double-helix monitoring sensor 3 uses the TENG contact separation electrification principle to convert the kinetic potential energy of the offshore floating wind turbine platform 2 into a continuous electrical signal. The data monitoring system 4 processes and stores the collected voltage signals in real time and transmits the collected signals to a remote end for visual analysis of the monitoring results. When the voltage signal is higher than the set voltage threshold, an early warning is issued. The entire monitoring device has high monitoring sensitivity and low cost, and can perform more accurate monitoring of marine engineering structures.

[0031] like Figure 1-2As shown, in a specific embodiment, the material of the conductive layer 311 is carbon black polylactic acid, and the material of the dielectric layer 312 is thermoplastic polyurethane elastomer. In this embodiment, each layer of the double helix monitoring sensor 3 is composed of carbon black polylactic acid (PLA-CB) and thermoplastic polyurethane elastomer (TPU), which are respectively used as the conductive layer 311 and the dielectric layer 312. The double helix structure 31 of the multi-layer structure is based on the friction nano-power generation technology. The multi-layer structure will increase the contact area between the layers to reduce the pitch, amplify the structural deformation, and then better amplify the electrical signal. In addition, the double helix monitoring sensor 3 can be formed by 3D printing, and the materials of the double nozzles of the 3D printer are carbon black polylactic acid (PLA-CB) and thermoplastic polyurethane elastomer (TPU), and are printed in one piece at the same time. Due to 3D printing technology, the structure can be printed out effectively, conveniently and quickly, and the cost is also lower.

[0032] In the above embodiment, the double-helix monitoring sensor 3 is based on friction nano-power generation technology and is designed as a multi-layer double-helix structure 31. It can more accurately monitor the slight deformation and vibration of the offshore floating wind turbine platform 2, and convert it into electric current and transmit it to the data monitoring system 4. The data monitoring system 4 can perform real-time data processing and analysis and send monitoring data to the server. The data monitoring system 4 has a preset voltage threshold when running. When it is determined that the offshore floating wind turbine platform 2 shakes beyond the threshold, further measures are taken to ensure the safety of the offshore floating wind turbine structure.

[0033] like Figure 4-5 As shown, in a specific embodiment, when the offshore floating wind turbine platform 2 is displaced and / or vibrates, the adjacent double helix structures 31 of the double helix monitoring sensor 3 separate and contact multiple times, charge transfer occurs to generate electrical signals, and the data monitoring system 4 receives the generated electrical signals and performs analysis, early warning and wireless data transmission.

[0034] Wireless sensing technology includes data collection, wireless transmission, data processing and early warning technology. Wireless transmission does not require wiring, so its layout is more flexible, greatly reducing the overall cost. As an emerging wireless transmission method, narrowband Internet of Things has great advantages in transmission power consumption, transmission bandwidth, transmission power consumption and transmission distance, and has become a research hotspot in the field of wireless transmission.

[0035] Specifically, the multi-dimensional wireless monitoring device for offshore floating wind turbines can be placed horizontally on the offshore floating wind turbine platform 2. When the wind turbine is impacted by waves or displaced, based on the contact-separation electrification principle of TENG, the contact-separation phenomenon occurs between the two adjacent layers of the double helix structure 31, thereby generating an electrical signal. Taking the figure as an example, when the double helix structure 31 of the double helix monitoring sensor 3 moves to the left, since its right end is fixed, it will generate contact with inertia. When the double helix structure 31 moves to the right end, it will separate, and thus it will be circulated back and forth, so that it will continuously generate contact and separation, charge transfer and generate current, and it is an active sensor that does not require external power supply, converting the kinetic potential energy of the offshore floating wind turbine into electrical energy to continuously generate electrical signals.

[0036] like Figure 1 As shown, in a specific embodiment, any two double helix structures 31 of adjacent layers are electrically connected to the data monitoring system 4 through wires; a guide tube 12 is provided on the wall of the shell 1, and the length direction of the guide tube 12 extends along the axial direction of the double helix monitoring sensor 3 and is sleeved in the cavity of the double helix monitoring sensor 3, and the side wall of the guide tube 12 is provided with a through hole for the wire to pass through.

[0037] Specifically, the shell 1 is a hollow cylindrical structure, and a guide tube 12 with a hollow tubular structure is connected to the center of one end face of the shell 1. The diameter of the guide tube 12 is smaller than the inner diameter of the double-helix monitoring sensor 3, and the length is smaller than the axial length of the shell 1. A small circular hole (through hole) is opened on the side of the guide tube 12 to facilitate the passage of the wire. The double-helix monitoring sensor 3 and the data monitoring system 4 are fixed on the inner side of the end wall of the shell 1, which can effectively improve the space utilization rate. One end of the two wires are respectively connected to the two adjacent layers of the double-helix monitoring sensor 3, and then the two wires pass through the through hole from the guide tube 12 and are connected to the data monitoring system 4.

[0038] like Figure 1 As shown, in a specific embodiment, the shell 1 is an acrylic tube shell, and a waterproof cover 13 with a sealing strip is provided at one end of the shell 1. The waterproof cover 13 can open and close the installation cavity 11. The waterproof cover 13 with a sealing strip can effectively ensure the waterproof performance of the acrylic tube shell.

[0039] like Figure 3 As shown, in a specific embodiment, the data monitoring system 4 includes a data acquisition chip 41 and a signal processing and early warning module 42. The data acquisition chip 41 is used to collect signals, and the signal processing and early warning module 42 can receive the collected data in real time and perform early warning and data transmission. Specifically, the data acquisition chip 41 transmits the voltage signal collected by the data acquisition chip 41 to the signal processing and early warning module 42 wirelessly and in real time through narrowband Internet of Things wireless communication for analysis and early warning.

[0040] like Figure 4-5 As shown, the signal processing and early warning module 42 receives the collection signal of the data acquisition chip 41 in real time. The size of the collection signal is positively correlated with the vibration of the offshore floating wind turbine platform 2. When the collected voltage signal exceeds the early warning voltage threshold, it can be judged that the offshore floating wind turbine is in a dangerous state, and certain measures can be taken for the structural safety of the offshore floating wind turbine.

[0041] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A multi-dimensional wireless monitoring device for offshore floating wind turbines, characterized in that: include: A housing, the housing being fixedly mounted on the offshore floating wind turbine platform, the housing comprising a closed wall surface and an installation cavity formed by the wall surface; A double helix monitoring sensor, wherein the double helix monitoring sensor is located in the installation cavity, and one end of the double helix monitoring sensor along the axial direction is fixed to the wall surface of the shell, and the double helix monitoring sensor is a multi-layer double helix structure, and the double helix structures of adjacent layers can be relatively separated and contacted; the double helix structure includes a conductive layer and a dielectric layer arranged along the thickness direction; A data monitoring system, wherein the data monitoring system is located in the installation cavity, the signal input end of the data monitoring system is electrically connected to the double-helix monitoring sensor, and the signal output end of the data monitoring system is connected to the server data.

2. The multi-dimensional wireless monitoring device for offshore floating wind turbines according to claim 1 is characterized in that: The conductive layer is made of carbon black polylactic acid, and the dielectric layer is made of thermoplastic polyurethane elastomer; the double-helix monitoring sensor is integrally printed by a 3D printer.

3. The multi-dimensional wireless monitoring device for offshore floating wind turbines according to claim 1 or 2, characterized in that: Any two of the double helix structures in adjacent layers are electrically connected to the data monitoring system via wires; a guide tube is provided on the wall of the shell, the length direction of the guide tube extends along the axial direction of the double helix monitoring sensor and is sleeved in the cavity of the double helix monitoring sensor, and a through hole is provided on the side wall of the guide tube for the wire to pass through.

4. The multi-dimensional wireless monitoring device for offshore floating wind turbines according to claim 3 is characterized in that: The shell is an acrylic tube shell, and the shell is a hollow cylindrical structure. A waterproof cover with a sealing strip is provided at one end of the shell along the axial direction, and the waterproof cover can open and close the installation cavity.

5. The multi-dimensional wireless monitoring device for offshore floating wind turbines according to claim 1, 2 or 4, characterized in that: When the offshore floating wind turbine platform is displaced and / or vibrates, the adjacent double helix structures of the double helix monitoring sensor separate and contact multiple times, charge transfer occurs and electrical signals are generated, and the data monitoring system receives the generated electrical signals and performs analysis, early warning and wireless data transmission.

6. The multi-dimensional wireless monitoring device for offshore floating wind turbines according to claim 5 is characterized in that: The data monitoring system is preset with a voltage threshold during operation. When the voltage generated by the double-helix monitoring sensor exceeds the voltage threshold, the data monitoring system issues an early warning.

7. The multi-dimensional wireless monitoring device for offshore floating wind turbines according to claim 1, 2 or 6, characterized in that: The data monitoring system includes a data acquisition chip and a signal processing and early warning module. The data acquisition chip is used to collect signals, and the signal processing and early warning module is used to receive the collected data and perform early warning and data transmission.

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