Data communication method and device, electronic equipment and storage medium

Abstract

The embodiment of the invention provides a data communication method and device, electronic equipment and a storage medium, and the method comprises the steps: carrying out the data communication with terminal equipment based on the external base station equipment when judging that the terminal equipment is accessed to the external base station equipment; when it is judged that the terminal equipment accesses the internal base station equipment, data communication is carried out based on the internal base station equipment and the terminal equipment, effective communication between a land data center and mobile phones inside and outside an offshore wind turbine tower can be achieved, and the data transmission requirements of offshore wind power equipment in different scenes are met.

Description

Technical Field

[0001] The present invention relates to the field of data communication technology, and in particular to a data communication method, an offshore wind farm, an offshore wind turbine tower, a data communication device, an electronic device and a computer-readable storage medium. Background Art

[0002] Offshore wind power equipment, including wind turbine blades, transmission systems, generators, etc., is an important tool for converting offshore wind energy into electrical energy. In order to achieve remote monitoring, fault diagnosis, maintenance, etc. of equipment, a reliable data communication system must be established. Through data communication, the operating parameters of the equipment, such as wind speed, rotation speed, power, etc., can be monitored in real time, potential faults can be discovered in time, and the availability of equipment can be improved, thereby reducing operating costs and improving power generation efficiency. Summary of the invention

[0003] The embodiments of the present invention provide a data communication method, an offshore wind farm, an offshore wind turbine tower, a data communication device, an electronic device and a computer-readable storage medium to overcome the above problems or at least partially solve the above problems.

[0004] The embodiment of the present invention discloses a data communication method, characterized in that the method is applied to a big data center system of a wind power centralized control center, the wind power centralized control center is connected to an offshore wind power generation equipment through a submarine optical cable, the offshore wind power generation equipment includes an offshore wind turbine tower, an external base station device for realizing external data communication of the offshore wind turbine tower is arranged outside the offshore wind turbine tower, and an internal base station device for realizing internal data communication of the offshore wind turbine tower is arranged inside the offshore wind turbine tower, including:

[0005] When it is determined that the terminal device is connected to the external base station device, data communication is performed with the terminal device based on the external base station device;

[0006] When it is determined that the terminal device is connected to the internal base station device, data communication is performed with the terminal device based on the internal base station device.

[0007] Optionally, the external base station device is integrated with a photoelectric resource device of the offshore wind power generation device, and the photoelectric resource device is used to supply power to the external base station device.

[0008] Optionally, the internal base station equipment is composed of an optical network unit and a passive optical network.

[0009] Optionally, the interior of the offshore wind turbine tower is a multi-layer structure, and the optical network unit is provided with a triangular logarithmic antenna for the multi-layer structure.

[0010] Optionally, the polarization direction of the triangular logarithmic antenna is vertical, which is used for radiating upward and downward.

[0011] An embodiment of the present invention further discloses an offshore wind farm, comprising a wind power centralized control center and wind power generation equipment, wherein the wind power centralized control center is connected to the offshore wind power generation equipment via a submarine optical cable, wherein the offshore wind power generation equipment comprises an offshore wind turbine tower, wherein an external base station device for realizing external data communication of the offshore wind turbine tower is arranged outside the offshore wind turbine tower, wherein an internal base station device for realizing internal data communication of the offshore wind turbine tower is arranged inside the offshore wind turbine tower, wherein the wind power centralized control center is provided with a big data center system, wherein the big data center system is configured as follows: when it is determined that a terminal device is connected to the external base station device, data communication is performed with the terminal device based on the external base station device; and when it is determined that the terminal device is connected to the internal base station device, data communication is performed with the terminal device based on the internal base station device.

[0012] An embodiment of the present invention also discloses an offshore wind turbine tower, wherein the offshore wind power generation equipment comprises an offshore wind turbine tower, an external base station device for realizing external data communication of the offshore wind turbine tower is arranged outside the offshore wind turbine tower, and an internal base station device for realizing internal data communication of the offshore wind turbine tower is arranged inside the offshore wind turbine tower.

[0013] The embodiment of the present invention further discloses a data communication device, wherein the method is applied to a big data center system of a wind power centralized control center, wherein the wind power centralized control center is connected to an offshore wind power generation equipment via a submarine optical cable, wherein the offshore wind power generation equipment comprises an offshore wind turbine tower, wherein an external base station device for realizing external data communication of the offshore wind turbine tower is arranged outside the offshore wind turbine tower, and an internal base station device for realizing internal data communication of the offshore wind turbine tower is arranged inside the offshore wind turbine tower, comprising:

[0014] A first data communication module, configured to perform data communication with the terminal device based on the external base station device when it is determined that the terminal device is connected to the external base station device;

[0015] The second data communication module is used to perform data communication with the terminal device based on the internal base station device when it is determined that the terminal device is connected to the internal base station device.

[0016] The embodiment of the present invention further discloses an electronic device, comprising a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory communicate with each other via the communication bus;

[0017] The memory is used to store computer programs;

[0018] The processor is used to implement the method described in the embodiment of the present invention when executing the program stored in the memory.

[0019] The embodiment of the present invention further discloses a computer-readable storage medium having instructions stored thereon, which, when executed by one or more processors, enables the processors to execute the method described in the embodiment of the present invention.

[0020] The embodiments of the present invention include the following advantages:

[0021] The embodiment of the present invention can realize effective communication between the land data center and the mobile phones inside and outside the offshore wind turbine tower by performing data communication with the terminal device based on the external base station device when determining that the terminal device is connected to the external base station device; and perform data communication with the terminal device based on the internal base station device when determining that the terminal device is connected to the internal base station device, so as to meet the data transmission requirements of offshore wind power equipment in different scenarios. It has the advantages of flexibility, reliability, and scalability, and provides strong support for the digitization of offshore wind farms. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a flow chart of steps of a data communication method provided in an embodiment of the present invention;

[0023] Figure 2 This is a structural schematic diagram of a 5G fusion scenario covering an offshore wind farm provided in an embodiment of the present invention;

[0024] Figure 3 is a structural schematic diagram of an offshore wind power generation equipment provided in an embodiment of the present invention;

[0025] Figure 4 is a structural block diagram of a data communication device provided in an embodiment of the present invention;

[0026] Figure 5 is a hardware structure block diagram of an electronic device provided in an embodiment of the present invention;

[0027] Figure 6 is a schematic diagram of a computer-readable medium provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] In practical applications, marine energy projects such as offshore oil and gas development and offshore wind power are in urgent need of innovative solutions due to the harsh offshore environment, high equipment operation and maintenance costs, and greater operational safety risks. 5G technology combined with artificial intelligence, big data analysis, and image recognition technologies is expected to significantly improve the intelligence level of these projects and enhance safety assurance.

[0030] Through 5G network coverage of offshore wind farms and wind turbine towers, and equipped with 5G drones, wind farm-specific robots and other intelligent terminals, it is possible to realize automated operations such as wind turbine blade inspection, tower cleaning, and offshore substation inspection. These applications can not only improve the equipment's perception, defect detection and status control capabilities, but also realize active early warning, intelligent decision-making and emergency response, effectively improving operation and maintenance efficiency.

[0031] However, there are still many challenges in practical applications:

[0032] Coverage problem: Offshore wind farms are large in scale and have a large number of wind turbines. It is a daunting task to achieve full coverage of all wind turbines.

[0033] Electromagnetic shielding problem: The closed structure of the wind turbine tower forms multiple electromagnetic shielding spaces, which makes it difficult for external signals to penetrate and seriously affects internal communications.

[0034] Cost constraints: While ensuring full coverage, how to control costs is also an issue that needs to be considered.

[0035] In summary, offshore wind power operation and maintenance has a short window period, high costs and high risks, and insufficient communication network coverage further increases the difficulty of operation and maintenance. 5G technology provides strong support for solving these problems, but it still needs to overcome challenges such as electromagnetic shielding and cost to fully realize the intelligent operation and maintenance of offshore wind power.

[0036] The embodiment of the present invention proposes a co-construction and sharing deployment mechanism and method for achieving three-dimensional coverage of offshore wind turbine communications. In view of the requirement for full coverage of internal and external signals of offshore wind power, and the problem of difficulty in continuous signal coverage due to internal layered partitions. In order to meet the communication needs of wind power operation and maintenance personnel and equipment, this patent proposes a three-dimensional signal coverage solution for wind turbines on the one hand, and optimizes the deployment of base station antennas based on the internal structure of the tower on the other hand, so as to achieve full-space signal coverage in the tower at a relatively low cost.

[0037] Reference Figure 1 , shows a flow chart of the steps of a data communication method provided in an embodiment of the present invention, which may specifically include the following steps:

[0038] Step 101, when it is determined that the terminal device is connected to the external base station device, data communication is performed with the terminal device based on the external base station device;

[0039] Step 102: When it is determined that the terminal device is connected to the internal base station device, data communication is performed with the terminal device based on the internal base station device.

[0040] refer to Figure 2 , Figure 2 This is a structural schematic diagram of a 5G fusion scenario covering an offshore wind farm provided in an embodiment of the present invention;

[0041] The embodiments of the present invention can be applied to a big data center system of a wind power centralized control center.

[0042] With the rapid development of offshore wind power, the requirements for real-time and reliability of data transmission are becoming higher and higher. In order to achieve remote monitoring, fault diagnosis and optimization control of offshore wind power equipment, it is necessary to establish an efficient data communication network.

[0043] Offshore wind farms can include:

[0044] Wind power control center: As the core of the entire system, it is responsible for data collection, processing and analysis.

[0045] Offshore wind power generation equipment: including fan blades, motors, and offshore wind turbine towers used to support the fan blades and motors.

[0046] Submarine optical cable: connects the wind power control center and offshore wind power generation equipment, providing a high-speed and reliable data transmission channel.

[0047] The big data center system configured in the wind power centralized control center: server hardware equipment used to process massive data from various devices and realize intelligent analysis and decision-making.

[0048] 8T8R device: may refer to a multiple-input multiple-output device with 8 antennas and 8 receivers, used to improve the reliability and capacity of wireless communications.

[0049] UPF and bearer network MEC: User plane function and mobile edge computing, respectively, are key components in 5G networks, used to provide flexible and efficient data processing and transmission services.

[0050] In actual applications, the special tower for offshore wind turbine cabins has a segmented closed structure with complete walls without openings, forming multiple complete electromagnetic shielding spaces. This makes it impossible for external electromagnetic signals to penetrate into the interior of the tower. The internal layered partitions make it difficult for signals to have continuous coverage.

[0051] According to an embodiment of the present invention, an external base station device for realizing external data communication of the offshore wind turbine tower can be arranged outside the offshore wind turbine tower, and an internal base station device for realizing internal data communication of the offshore wind turbine tower can be arranged inside the offshore wind turbine tower. When it is determined that the terminal device is connected to the external base station device, data communication is performed with the terminal device based on the external base station device. When it is determined that the terminal device is connected to the internal base station device, data communication is performed with the terminal device based on the internal base station device, thereby solving the problem of being unable to perform data communication with the terminal device inside the offshore wind turbine tower.

[0052] In order to enable those skilled in the art to better understand the embodiments of the present invention, some technical terms involved in the embodiments of the present invention are explained below.

[0053] PON (Passive Optical Network): "Passive" means that (in the optical distribution network) it does not contain any electronic devices or electronic power supplies. It is composed entirely of passive devices such as optical splitters and does not require expensive active electronic equipment.

[0054] ONU (Optical Network Unit): An optical network device connected to the branch optical fiber of the ODN.

[0055] Optoelectronic resource rack, a rack used to carry optoelectronic equipment, including:

[0056] Photovoltaic panel assembly: In offshore wind farms, in addition to wind turbines, photovoltaic panels are sometimes installed to supplement the power supply. These photovoltaic panels require racks to support them.

[0057] Communication base station components: In order to ensure communication, communication base stations are usually built near wind farms. The antennas and equipment of these base stations need to be installed on towers.

[0058] Medium and low dual-frequency networking: This is a common wireless communication network networking method, which combines wireless signals of different frequency bands to improve network capacity and coverage.

[0059] 2.1G and 800M: These refer to two different wireless communication frequency bands. 2.1G belongs to the GSM frequency band, and 800M belongs to the CDMA frequency band. By using these two frequency bands, wider network coverage and more stable communication quality can be achieved.

[0060] MIMO (Multiple-Input Multiple-Output) is a technology that uses multiple antennas to transmit and receive signals in wireless communication systems. Simply put, it uses multiple antennas to send and receive data simultaneously to improve the performance of the communication system.

[0061] How MIMO works:

[0062] Traditional wireless communication systems usually have only one transmitting antenna and one receiving antenna, and signal transmission is easily affected by factors such as multipath effects and fading. MIMO technology uses multiple antennas at the transmitting and receiving ends to achieve the following:

[0063] Spatial multiplexing: Multiple data streams are sent to multiple receiving antennas simultaneously, thereby increasing the transmission rate of the system.

[0064] Diversity gain: Receiving signals through multiple antennas can reduce the depth of signal fading and improve system reliability.

[0065] Beamforming: By adjusting the phase and amplitude of each antenna, the signal energy is concentrated in a specific direction, improving the system coverage and anti-interference ability.

[0066] Advantages of MIMO:

[0067] Improve data transmission rate: MIMO technology can significantly improve the transmission rate of wireless communication systems to meet the growing data demand.

[0068] Improve signal quality: MIMO technology can reduce the impact of signal fading and improve signal reliability.

[0069] Improved coverage: MIMO technology can improve the coverage of the system, especially in complex environments such as indoors.

[0070] Enhanced system capacity: MIMO technology can increase system capacity and support more users to access simultaneously.

[0071] Applications of MIMO:

[0072] MIMO technology has been widely used in the field of wireless communications, mainly including:

[0073] Mobile communications: 4G, 5G and other mobile communication systems all use MIMO technology to improve data transmission rate and coverage.

[0074] Wireless LAN: MIMO technology is also used in the Wi-Fi standard to improve the performance of wireless LAN.

[0075] Satellite communications: MIMO technology is also used in satellite communications to improve the capacity and reliability of satellite communication systems.

[0076] Classification of MIMO:

[0077] Single-User MIMO (SU-MIMO): Serves only one user in a wireless channel.

[0078] Multi-User MIMO (MU-MIMO): Serving multiple users simultaneously in one wireless channel.

[0079] Massive MIMO: Base stations are equipped with a large number of antennas to improve system capacity and energy efficiency.

[0080] As an advanced wireless communication technology, MIMO technology significantly improves the performance of wireless communication systems by utilizing multi-antenna technology. With the continuous development of wireless communication technology, MIMO technology will also be more widely used.

[0081] Exemplarily, to realize data communication inside and outside the offshore wind turbine tower respectively, the following communication scheme can be designed to realize effective communication between the land data center and the mobile phones inside and outside the tower.

[0082] Solution core:

[0083] External communication: Utilize the external base station equipment integrated on the optoelectronic resource rack to achieve wireless communication with external mobile phones through the 2.1G and 800M frequency bands.

[0084] Of course, the above examples are only for illustration. Since there is sufficient space outside the offshore wind turbine tower, those skilled in the art may use any other conventional base station, and the embodiments of the present invention are not limited to this.

[0085] Internal communication: Use the PON network inside the tower to achieve wired or wireless communication with internal mobile phones.

[0086] Of course, the above examples are only for illustration, and those skilled in the art may use any other base station of smaller size as the internal base station device, and the embodiments of the present invention are not limited to this.

[0087] Data center connection: Connect the land data center to the offshore base station via submarine optical cables to achieve data transmission.

[0088] Specific implementation plan:

[0089] 1. External communication (outside the tower):

[0090] Base station deployment: Deploy base station equipment supporting 2.1G and 800M frequency bands on the optoelectronic resource rack.

[0091] Signal coverage: The base station antenna covers a certain range around the tower, realizing wireless connection with external mobile phones.

[0092] Data transmission: The base station is connected to the land data center via submarine optical cables to achieve data exchange.

[0093] 2. Internal communication (inside the tower):

[0094] PON network construction: The PON network is deployed inside the tower, and the ONU equipment is connected to the PON network.

[0095] Wireless coverage: Deploy WiFi APs or small cellular base stations inside the tower to achieve wireless coverage of the area inside the tower.

[0096] Data transmission: ONU devices transmit data to the core switch through the PON network, and then connect to the land data center through submarine optical cables.

[0097] 3. Connection between data center and base station:

[0098] Submarine optical cable: Connect land data centers with offshore base stations via submarine optical cables to achieve high-capacity, low-latency data transmission.

[0099] Photoelectric conversion: Photoelectric signal conversion is performed at access points on shore and at sea.

[0100] 4. Mobile phone access:

[0101] When the mobile phone is outside the offshore wind turbine tower, it can directly access the base station through the wireless signal of 2.1G or 800M frequency band.

[0102] When the mobile phone is inside the offshore wind turbine tower, it can access the PON network through wireless network WiFi or cellular network, and then access the core network through the PON network.

[0103] Solution advantages:

[0104] Flexible coverage: Meet the communication needs of different scenarios inside and outside the tower at the same time.

[0105] Large capacity: PON networks can provide high-bandwidth access capabilities.

[0106] High reliability: Submarine optical cables and PON networks have high reliability.

[0107] Strong scalability: Base stations, ONU devices and wireless access points can be added as needed.

[0108] Key technologies:

[0109] Multi-band coexistence: The base station supports both 2.1G and 800M bands to improve spectrum utilization.

[0110] MIMO technology: Improve system capacity and coverage through multi-antenna technology.

[0111] PON technology: provides high-bandwidth, low-cost access.

[0112] Software Defined Network (SDN): enables flexible configuration and management of the network.

[0113] The embodiment of the present invention can realize effective communication between the land data center and the mobile phones inside and outside the offshore wind turbine tower by performing data communication with the terminal device based on the external base station device when determining that the terminal device is connected to the external base station device; and perform data communication with the terminal device based on the internal base station device when determining that the terminal device is connected to the internal base station device, so as to meet the data transmission requirements of offshore wind power equipment in different scenarios. It has the advantages of flexibility, reliability, and scalability, and provides strong support for the digitization of offshore wind farms.

[0114] Based on the above embodiment, a variant embodiment of the above embodiment is proposed. It should be noted that in order to make the description concise, only the differences from the above embodiment are described in the variant embodiment.

[0115] In an optional embodiment of the present invention, the external base station device is integrated with a photoelectric resource device of the offshore wind power generation device, and the photoelectric resource device is used to supply power to the external base station device.

[0116] In actual applications, the external base station equipment deployment solution on the outside of the offshore wind turbine tower can utilize the wind power photovoltaic resource frame to jointly build and share to achieve long-distance coverage. The platform base station is designed as a medium and low dual-frequency network. The 2.1G uses the contractor's China Unicom equipment, and the low frequency uses China Telecom 800M.

[0117] In a specific implementation, the photovoltaic resource device may be a photovoltaic resource rack including a photovoltaic power generation device, and the photovoltaic resource rack may be composed of the following structure:

[0118] Photovoltaic panel bracket: In offshore wind farms, in addition to wind turbines, photovoltaic panels are sometimes installed to supplement the power supply. These photovoltaic panels require racks to support them. Photovoltaic panels can be used to supply power to external base station equipment.

[0119] Communication base station tower: In order to ensure communication, communication base stations are usually built near wind farms. The antennas and equipment of these base stations need to be installed on towers.

[0120] Integrated energy service platform: With the integration of new energy technologies, some wind farms will build integrated energy service platforms to integrate and utilize multiple energy sources such as wind power, photovoltaics, and energy storage. This platform may be a rack or facility that integrates multiple devices.

[0121] In the embodiment of the present invention, by integrating the external base station equipment into the photovoltaic resource equipment of the offshore wind power generation equipment, the infrastructure can be shared. By installing the communication base station on the photovoltaic resource rack of the wind farm, the existing infrastructure can be fully utilized, duplication of construction can be reduced, and costs can be reduced. The coverage range can also be improved. Offshore wind farms are usually located in the sea far away from the land. The construction of communication base stations can expand the network coverage range and provide communication services for nearby sea areas. The signal quality can be improved by optimizing the base station position and antenna direction, and the communication rate can be increased.

[0122] At the same time, the medium and low dual-frequency networking method is adopted, using the two frequency bands of 2.1G and 800M to further improve the stability and capacity of the network.

[0123] In an optional embodiment of the present invention, the internal base station equipment is composed of an optical network unit and a passive optical network.

[0124] ONU (Optical Network Unit) is a key device in the fiber optic access network, located at the user end. It is responsible for converting optical signals into electrical signals and connecting various devices at the user end, such as routers, switches, computers, etc. ONU is usually installed in the user's home or enterprise as a terminal device for fiber optic access network.

[0125] Main functions of ONU:

[0126] Optical-to-electrical conversion: converts the optical signal received from the OLT (Optical Line Terminal) into an electrical signal to connect to user equipment.

[0127] Data forwarding: Process the received data packets and forward them to the connected devices.

[0128] VLAN division: Divide different services into different VLANs to achieve network isolation.

[0129] QoS guarantee: Provide different service quality guarantees to meet the needs of different businesses.

[0130] OAM function: realize remote management and maintenance of ONU equipment.

[0131] PON (Passive Optical Network) is a point-to-multipoint fiber access network technology. It uses an optical splitter to split a fiber into multiple paths to connect multiple ONUs. PON network has the advantages of high bandwidth, low cost, and easy deployment, and is widely used in FTTH (Fiber To The Home) and other scenarios.

[0132] The main components of PON network:

[0133] OLT (Optical Line Terminal): Located on the operator side, responsible for managing and controlling the entire PON network.

[0134] ODN (Optical Distribution Network): It is composed of optical fibers and optical splitters and is responsible for distributing optical signals to each ONU.

[0135] ONU (Optical Network Unit): Located at the user end, responsible for converting optical signals into electrical signals and connecting user devices.

[0136] PON small base station:

[0137] PON small base station refers to a networking method that realizes the backhaul of small base stations (Small Cell) through the PON network. Traditional small base station backhaul usually adopts wired mode, while PON small base station takes advantage of the advantages of optical fiber to provide higher speed and more stable backhaul.

[0138] Advantages of PON small base stations:

[0139] High bandwidth: PON networks can provide higher bandwidth to meet the needs of small base stations for large data transmission.

[0140] Low cost: Compared with traditional wired backhaul methods, the construction cost of PON network is lower.

[0141] Flexible deployment: PON small base stations can be flexibly deployed in various scenarios, such as indoors, outdoors, and underground.

[0142] Easy to maintain: The maintenance of the PON network is relatively simple, and the ONU can be remotely managed through the OLT.

[0143] Application scenarios of PON small base stations:

[0144] Indoor coverage: In indoor scenarios, PON small base stations can provide denser coverage and improve indoor signal quality.

[0145] Hotspot coverage: In areas with dense traffic, PON small base stations can provide additional capacity to alleviate network congestion.

[0146] Enterprise private network: PON small base stations can be used to build enterprise private networks and provide secure and reliable communication services.

[0147] The relationship between ONU and PON small base station:

[0148] ONU is the terminal device in the PON network, responsible for converting optical signals into electrical signals and connecting user devices. PON small base station is a networking method that realizes the backhaul of small base stations through the PON network. Therefore, ONU is an essential device for PON small base stations to access the PON network.

[0149] ONU and PON small base station are two important concepts in the fiber optic access network. ONU, as the terminal equipment at the user end, is responsible for photoelectric conversion and data forwarding; PON is a point-to-multipoint fiber optic access network technology, and PON small base station is a way to use the PON network to achieve small base station backhaul. Through PON small base station, the network coverage can be increased, the signal quality can be improved, and the user's demand for high-speed, high-quality wireless communication can be met.

[0150] In an optional embodiment of the present invention, the interior of the offshore wind turbine tower is a multi-layer structure, and the optical network unit is provided with a triangular logarithmic antenna for the multi-layer structure, and the polarization direction of the triangular logarithmic antenna is a vertical direction for radiating upward and downward.

[0151] refer to Figure 3 , Figure 3 is a structural schematic diagram of an offshore wind power generation equipment provided in an embodiment of the present invention;

[0152] In practical applications, there are two main challenges in communication inside offshore wind turbine towers:

[0153] Electromagnetic shielding: The closed structure of the tower prevents external signals from penetrating, forming multiple electromagnetic shielding spaces. The reason is that the metal structure of the offshore wind turbine tower has a shielding effect on electromagnetic waves, making it difficult for external signals to enter the interior of the tower.

[0154] Uneven signal coverage: The layered partitions inside the tower make it difficult for the signal to be covered continuously. The reason is that the metal structure and layered partitions inside the tower will cause signal attenuation and reflection, affecting the quality of signal coverage.

[0155] In response to these problems, the embodiment of the present invention proposes a solution based on a PON integrated base station to achieve full-space signal coverage inside the tower. Specifically, the signal is transmitted to the inside of the tower through optical fiber, and ONU and PON small base stations are deployed inside to achieve signal coverage, integrating PON (passive optical network) and base station functions, simplifying network deployment and reducing costs; at the same time, in view of the layered structure inside the tower, ONU and PON small base stations are deployed on different floors to achieve signal coverage for each floor, improving the uniformity of signal coverage and reducing signal interference; by setting a triangular logarithmic antenna for the optical network unit for the multi-layer structure, and making the polarization direction of the triangular logarithmic antenna vertical, it is used for upward and downward radiation, so as to achieve full coverage of the internal space of the tower, improve the efficiency of signal coverage, and reduce the number of antennas.

[0156] Compared with traditional radio remote units or repeaters, the PON integrated base station has lower costs and can further achieve the following beneficial effects.

[0157] Wide coverage: Through the layered deployment of ONU and PON small base stations and the use of triangular logarithmic antennas, full-space signal coverage inside the tower is achieved.

[0158] Flexible: The PON network is flexible and scalable, and ONUs and PON small base stations can be added as needed.

[0159] Stable and reliable: Fiber optic transmission has the characteristics of strong anti-interference ability and high transmission rate.

[0160] This solution effectively solves the communication problems inside the offshore wind turbine cabin by rationally utilizing PON technology and optimizing antenna layout, and provides stable and reliable communication services for the staff and equipment inside the tower.

[0161] In specific implementation, in order to improve the signal quality for the multi-layer structure inside the offshore wind turbine tower, the layout of the triangular logarithmic antenna needs to comprehensively consider the structural characteristics of the tower, signal coverage requirements and antenna characteristics.

[0162] 1. Antenna location selection:

[0163] Floor selection:

[0164] Middle floor: The middle floor of the tower is generally selected as the main location for antenna layout to balance the signal coverage of upper and lower floors.

[0165] Signal blind spot: If there is a signal blind spot, you can add an antenna near the blind spot.

[0166] Location selection:

[0167] Center location: Placing the antenna in the center of the floor provides the best coverage for the surrounding area.

[0168] Avoid metal obstacles: Avoid placing the antenna near metal doors, windows, or equipment to avoid affecting signal propagation.

[0169] 2. Antenna installation angle:

[0170] The triangular logarithmic antenna has two polarization directions, horizontal and vertical, which can cover signals in different directions.

[0171] Horizontal polarization: Mainly used to cover signals in the horizontal direction and suitable for covering larger plane areas.

[0172] Vertical polarization: Mainly used to cover signals in the vertical direction, suitable for covering upper and lower floors.

[0173] Installation angle: Adjust the installation angle of the antenna according to the specific structure inside the tower and the signal coverage requirements. Generally, the antenna can be tilted slightly to cover more area.

[0174] 3. Number of antennas:

[0175] Determined by coverage: The number of antennas depends on the tower height, area, and signal coverage requirements.

[0176] Layered deployment: Deploying antennas on different floors can improve signal coverage density and reduce signal attenuation.

[0177] 4. Antenna height:

[0178] Determined according to floor height: The height of the antenna should be adjusted according to the height of the floor and the signal coverage range.

[0179] Avoid obstruction: Avoid installing the antenna in a location where it is obstructed by other equipment or structures.

[0180] 5. Antenna power:

[0181] Adjust according to signal strength: The antenna's transmit power should be adjusted according to the signal strength to avoid interference caused by excessive power.

[0182] Compliance with regulations: The antenna's transmit power should comply with relevant radio management regulations.

[0183] 6. Other optimization measures:

[0184] Signal booster: In areas with weak signals, a signal booster can be added to increase signal strength.

[0185] Distributed antenna system: For large towers, a distributed antenna system can be used to improve the flexibility of the system.

[0186] Smart antenna technology: Using smart antenna technology, the antenna beam direction can be dynamically adjusted according to the real-time changes of the signal.

[0187] 7. Notes:

[0188] Electromagnetic compatibility: The layout of the antenna should take into account the electromagnetic compatibility with other equipment to avoid mutual interference.

[0189] Safety protection: The antenna should be installed in a safe location and take lightning protection, waterproof and other protective measures.

[0190] Regular maintenance: Check the installation status of the antenna regularly to ensure that the antenna is working properly.

[0191] By properly deploying triangular logarithmic antennas, the signal coverage quality inside the offshore wind turbine tower can be effectively improved, and the communication efficiency of the staff can be improved. In actual applications, targeted design and optimization are required based on the specific tower structure, signal requirements and environmental conditions.

[0192] In an optional embodiment of the present invention, a level acquisition module is provided inside the offshore wind turbine tower, further comprising:

[0193] Obtaining location information of the internal base station device;

[0194] Determine the coverage distance of the internal base station device based on the location information;

[0195] Determining an attenuation factor and a path loss additional value based on the internal structure of the offshore wind turbine tower;

[0196] Calculate the predicted value of the mobile station reception level at the target level inside the offshore wind turbine tower by using the coverage distance, attenuation factor and path loss additional value;

[0197] Calling the level acquisition module to obtain the actual measured value of the mobile station receiving level;

[0198] When it is determined that the actual measured value of the mobile station reception level is lower than the predicted value of the mobile station reception level, signal fading alarm information is generated.

[0199] Exemplarily, the predicted value of the mobile station reception level may be calculated by the following formula:

[0200]

[0201] d is the coverage distance;

[0202] d 0 (reference distance) is set to 1 meter;

[0203] P L(d 0 ) represents the near-ground reference distance (d 0 =3~10λ) of free space attenuation value, and calculate P according to the formula L (d 0 )=31dB(f=800MHz);

[0204] is the attenuation factor. The value of the attenuation factor n varies for different wireless environments.

[0205] In free space, the path attenuation is proportional to the square of the distance, that is, the attenuation factor is 2;

[0206] Inside a building, the effect of distance on path loss will be significantly greater than in free space.

[0207] Generally speaking, for a fully open environment, the value of n is 2.0 to 2.5;

[0208] For a semi-open environment, the value of n is 2.5 to 3.0;

[0209] For a relatively closed environment, the value of n is 3.0 to 3.5.

[0210] FAF represents the additional value of path loss due to factors such as floors and walls.

[0211] On-site wireless environment condition settings:

[0212] The wind turbine cabin is divided into 6 floors, each floor is 10 meters;

[0213] Because the interlayer structure is a semi-enclosed iron sheet, the additional value of FAF path loss increases by 5dB per layer;

[0214] n SF For a more closed environment, the value is 3;

[0215] P L (d 0 ) The operating frequency of the telecommunication base station is 800MHz, and the free space attenuation value is 31dB;

[0216] The power of Comba's single-mode ceiling-mounted integrated equipment is 250mw, and the antenna gain is 2dBi, so the antenna port output power is 27dB and the transmission power loss is 8dB.

[0217] The power received by the mobile station = antenna port output power - transmission power loss - downlink path loss.

[0218] According to the above conditions, the power RSRP received by the mobile station on the sixth floor of the wind turbine cabin is predicted and calculated according to the formula:

[0219]

[0220] Downlink path loss = 31 + 10*3*log(5,1) + 15

[0221] =31+20.97+15

[0222] =66.97dB

[0223] Power received by the mobile station = antenna port output power - transmission power loss - downlink path loss

[0224] =27-8-66.97

[0225] =-47.97dBm

[0226] According to the above calculations, the predicted values ​​of the mobile station receiving levels on the 1st to 6th floors of the wind turbine cabin can be predicted as shown in the following table:

[0227]

[0228] In order to enable those skilled in the art to better understand the embodiment of the present invention, an example is used below to illustrate the embodiment of the present invention.

[0229] 1. Basic plan:

[0230] This patent is verified in actual scenarios, jointly building and sharing infrastructure and submarine cables with the wind turbine industry, and conducting statistical analysis on the wireless transmission power and link loss in the on-site wind turbine tower cabin, thereby reducing the overall budget for communication deployment while meeting the communication coverage required for business needs.

[0231] 1) External deployment plan for wind turbines: Utilize the photovoltaic resource frame of wind power for co-construction and sharing: To achieve long-distance coverage, the platform base station is designed as a medium- and low-frequency dual-band network, 2.1G uses the equipment of the contractor China Unicom, and the low frequency uses China Telecom 800M.

[0232] 2) Wind turbine internal deployment plan: The offshore wind turbine tower is a large-scale closed frame structure, with layered deployment of ONU and PON small base stations inside to achieve radial coverage of the tower. After the terminal is connected through the PON small base station, it takes a dedicated line to the control console.

[0233] The special tower for offshore wind turbine cabins has a segmented closed structure with complete walls without openings, forming multiple complete electromagnetic shielding spaces. This makes it impossible for external electromagnetic signals to penetrate into the interior of the tower. The internal layered partitions make it difficult for signals to have continuous coverage.

[0234] In order to meet the communication needs of personnel and equipment entering the tower, this patent optimizes the layout of base station antennas based on the internal structure of the tower, and achieves full-space signal coverage within the tower at a lower cost.

[0235] Firstly, this patent proposes a small base station that uses two triangular logarithmic antennas to provide coverage upward and downward respectively. Secondly, the PON integrated base station replaces the traditional radio remote unit or repeater, greatly reducing costs.

[0236] Finally, this deployment solution constructs a submarine cable in the wind farm to send the offshore wind turbine cabin signal back to the control platform. This patent is verified in actual scenarios, and the wireless transmission power and link loss in the on-site wind turbine tower cabin are statistically analyzed, which reduces the overall budget of communication deployment while meeting the communication coverage of business needs.

[0237] Overall network topology deployment plan: The offshore wind turbine tower is a large closed frame structure, with layered ONU and PON small base stations deployed inside to achieve radiated coverage of the tower. After the terminal is connected through the PON small base station, it takes a dedicated line to the control console. The PON integrated base station in the wind turbine tower introduces two triangular logarithmic antennas to provide coverage upward and downward respectively.

[0238] It should be noted that, for the sake of simplicity, the method embodiments are described as a series of action combinations, but those skilled in the art should be aware that the embodiments of the present invention are not limited by the order of the actions described, because according to the embodiments of the present invention, certain steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in the specification are all preferred embodiments, and the actions involved are not necessarily required by the embodiments of the present invention.

[0239] An embodiment of the present invention further discloses an offshore wind farm, comprising a wind power centralized control center and wind power generation equipment, wherein the wind power centralized control center is connected to the offshore wind power generation equipment via a submarine optical cable, wherein the offshore wind power generation equipment comprises an offshore wind turbine tower, wherein an external base station device for realizing external data communication of the offshore wind turbine tower is arranged outside the offshore wind turbine tower, wherein an internal base station device for realizing internal data communication of the offshore wind turbine tower is arranged inside the offshore wind turbine tower, wherein the wind power centralized control center is provided with a big data center system, wherein the big data center system is configured as follows: when it is determined that a terminal device is connected to the external base station device, data communication is performed with the terminal device based on the external base station device; and when it is determined that the terminal device is connected to the internal base station device, data communication is performed with the terminal device based on the internal base station device.

[0240] An embodiment of the present invention also discloses an offshore wind turbine tower, wherein the offshore wind power generation equipment comprises an offshore wind turbine tower, an external base station device for realizing external data communication of the offshore wind turbine tower is arranged outside the offshore wind turbine tower, and an internal base station device for realizing internal data communication of the offshore wind turbine tower is arranged inside the offshore wind turbine tower.

[0241] Reference Figure 4 , shows a structural block diagram of a data communication device provided in an embodiment of the present invention, which may specifically include the following modules:

[0242] A first data communication module 401, configured to perform data communication with the terminal device based on the external base station device when it is determined that the terminal device is connected to the external base station device;

[0243] The second data communication module 402 is used to perform data communication with the terminal device based on the internal base station device when it is determined that the terminal device is connected to the internal base station device.

[0244] As for the device embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0245] In addition, an embodiment of the present invention further provides an electronic device, including: a processor, a memory, and a computer program stored in the memory and executable on the processor. When the computer program is executed by the processor, the various processes of the above-mentioned data communication method embodiment are implemented, and the same technical effect can be achieved. To avoid repetition, it will not be described here.

[0246] The embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, each process of the above-mentioned data communication method embodiment is implemented, and the same technical effect can be achieved. To avoid repetition, it is not repeated here. The computer-readable storage medium is, for example, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0247] Figure 5 A schematic diagram of the hardware structure of an electronic device for implementing various embodiments of the present invention.

[0248] The electronic device 500 includes but is not limited to: a radio frequency unit 501, a network module 502, an audio output unit 503, an input unit 504, a sensor 505, a display unit 506, a user input unit 507, an interface unit 508, a memory 509, a processor 510, and a power supply 511. Those skilled in the art will appreciate that Figure 5The electronic device structure shown in the figure does not constitute a limitation on the electronic device, and the electronic device may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently. In the embodiments of the present invention, the electronic device includes but is not limited to a mobile phone, a tablet computer, a laptop computer, a PDA, a vehicle-mounted terminal, a wearable device, and a pedometer.

[0249] It should be understood that in the embodiment of the present invention, the radio frequency unit 501 can be used for receiving and sending signals during information transmission or communication. Specifically, after receiving downlink data from the base station, it is sent to the processor 510 for processing; in addition, uplink data is sent to the base station. Generally, the radio frequency unit 501 includes but is not limited to an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc. In addition, the radio frequency unit 501 can also communicate with the network and other devices through a wireless communication system.

[0250] The electronic device provides users with wireless broadband Internet access through the network module 502, such as helping users to send and receive emails, browse web pages, and access streaming media.

[0251] The audio output unit 503 can convert the audio data received by the RF unit 501 or the network module 502 or stored in the memory 509 into an audio signal and output it as sound. Moreover, the audio output unit 503 can also provide audio output related to a specific function performed by the electronic device 500 (for example, a call signal reception sound, a message reception sound, etc.). The audio output unit 503 includes a speaker, a buzzer, a receiver, etc.

[0252] The input unit 504 is used to receive audio or video signals. The input unit 504 may include a graphics processor (GPU) 5041 and a microphone 5042. The graphics processor 5041 processes the image data of a static picture or video obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The processed image frame can be displayed on the display unit 506. The image frame processed by the graphics processor 5041 can be stored in the memory 509 (or other storage medium) or sent via the radio frequency unit 501 or the network module 502. The microphone 5042 can receive sound and can process such sound into audio data. The processed audio data can be converted into a format output that can be sent to a mobile communication base station via the radio frequency unit 501 in the case of a telephone call mode.

[0253] The electronic device 500 also includes at least one sensor 505, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor and a proximity sensor, wherein the ambient light sensor can adjust the brightness of the display panel 5061 according to the brightness of the ambient light, and the proximity sensor can turn off the display panel 5061 and / or the backlight when the electronic device 500 is moved to the ear. As a type of motion sensor, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally three axes), and can detect the magnitude and direction of gravity when stationary, which can be used to identify the posture of the electronic device (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometer, tapping), etc.; the sensor 505 can also include a fingerprint sensor, a pressure sensor, an iris sensor, a molecular sensor, a gyroscope, a barometer, a hygrometer, a thermometer, an infrared sensor, etc., which will not be repeated here.

[0254] The display unit 506 is used to display information input by the user or information provided to the user. The display unit 506 may include a display panel 5061, which may be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), or the like.

[0255] The user input unit 507 can be used to receive input digital or character information, and to generate key signal input related to user settings and function control of the electronic device. Specifically, the user input unit 507 includes a touch panel 5071 and other input devices 5072. The touch panel 5071, also known as a touch screen, can collect the user's touch operation on or near it (such as the user's operation on the touch panel 5071 or near the touch panel 5071 using any suitable object or accessory such as a finger, stylus, etc.). The touch panel 5071 may include two parts: a touch detection device and a touch controller. Among them, the touch detection device detects the user's touch orientation, detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts it into the contact point coordinates, and then sends it to the processor 510, receives the command sent by the processor 510 and executes it. In addition, the touch panel 5071 can be implemented using multiple types such as resistive, capacitive, infrared and surface acoustic waves. In addition to the touch panel 5071, the user input unit 507 may also include other input devices 5072. Specifically, other input devices 5072 may include but are not limited to a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described in detail here.

[0256] Furthermore, the touch panel 5071 may be overlaid on the display panel 5061. When the touch panel 5071 detects a touch operation on or near it, it transmits the information to the processor 510 to determine the type of the touch event. Then, the processor 510 provides a corresponding visual output on the display panel 5061 according to the type of the touch event. Figure 5 In the figure, the touch panel 5071 and the display panel 5061 are used as two independent components to realize the input and output functions of the electronic device. However, in some embodiments, the touch panel 5071 and the display panel 5061 can be integrated to realize the input and output functions of the electronic device, which is not limited here.

[0257] The interface unit 508 is an interface for connecting an external device to the electronic device 500. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device with an identification module, an audio input / output (I / O) port, a video I / O port, a headphone port, etc. The interface unit 508 may be used to receive input (e.g., data information, power, etc.) from an external device and transmit the received input to one or more elements within the electronic device 500 or may be used to transmit data between the electronic device 500 and an external device.

[0258] The memory 509 can be used to store software programs and various data. The memory 509 can mainly include a program storage area and a data storage area, wherein the program storage area can store an operating system, an application required for at least one function (such as a sound playback function, an image playback function, etc.), etc.; the data storage area can store data created according to the use of the mobile phone (such as audio data, a phone book, etc.), etc. In addition, the memory 509 can include a high-speed random access memory, and can also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other volatile solid-state storage devices.

[0259] The processor 510 is the control center of the electronic device. It uses various interfaces and lines to connect various parts of the entire electronic device. By running or executing software programs and / or modules stored in the memory 509 and calling data stored in the memory 509, it performs various functions of the electronic device and processes data, thereby monitoring the electronic device as a whole. The processor 510 may include one or more processing units; preferably, the processor 510 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface, and application programs, and the modem processor mainly processes wireless communications. It is understandable that the above-mentioned modem processor may not be integrated into the processor 510.

[0260] The electronic device 500 may also include a power supply 511 (such as a battery) for supplying power to each component. Preferably, the power supply 511 may be logically connected to the processor 510 through a power management system, thereby implementing functions such as charging, discharging, and power consumption management through the power management system.

[0261] In addition, the electronic device 500 includes some functional modules not shown, which will not be described in detail here.

[0262] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0263] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present invention, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, a magnetic disk, or an optical disk), and includes a number of instructions for enabling a terminal (which can be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to execute the methods described in each embodiment of the present invention.

[0264] like Figure 6 As shown, in another embodiment provided by the present invention, a computer-readable storage medium 601 is also provided, in which instructions are stored. When the computer-readable storage medium is run on a computer, the computer executes the data communication method described in the above embodiment.

[0265] The embodiments of the present invention are described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementation modes, which are merely illustrative rather than restrictive. Under the guidance of the present invention, ordinary technicians in this field can also make many forms without departing from the scope of protection of the present invention and the claims, all of which are within the protection of the present invention.

[0266] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed in the embodiments of the present invention can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present invention.

[0267] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0268] In the embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0269] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0270] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0271] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium, including several instructions for a computer device (which can be a personal computer, server, or network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: various media that can store program codes, such as USB flash drives, mobile hard disks, ROM, RAM, magnetic disks, or optical disks.

[0272] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A data communication method, characterized in that: The method is applied to a big data center system of a wind power centralized control center, wherein the wind power centralized control center is connected to an offshore wind power generation equipment via a submarine optical cable, wherein the offshore wind power generation equipment comprises an offshore wind turbine tower, wherein an external base station device for realizing external data communication of the offshore wind turbine tower is arranged outside the offshore wind turbine tower, and an internal base station device for realizing internal data communication of the offshore wind turbine tower is arranged inside the offshore wind turbine tower, comprising: When it is determined that the terminal device is connected to the external base station device, data communication is performed with the terminal device based on the external base station device; When it is determined that the terminal device is connected to the internal base station device, data communication is performed with the terminal device based on the internal base station device.

2. The method according to claim 1, characterized in that The external base station device is integrated with the optoelectronic resource device of the offshore wind power generation equipment, and the optoelectronic resource device is used to supply power to the external base station device.

3. The method according to claim 1, characterized in that The internal base station equipment is composed of an optical network unit and a passive optical network.

4. The method according to claim 3, characterized in that The interior of the offshore wind turbine tower is a multi-layer structure, and the optical network unit is provided with a triangular logarithmic antenna for the multi-layer structure.

5. The method according to claim 4, characterized in that The polarization direction of the triangular logarithmic antenna is vertical, and is used for radiating upward and downward.

6. An offshore wind farm, characterized in that: The offshore wind farm includes a wind power centralized control center and wind power generation equipment, the wind power centralized control center is connected to the offshore wind power generation equipment via a submarine optical cable, the offshore wind power generation equipment includes an offshore wind turbine tower, an external base station device for realizing external data communication of the offshore wind turbine tower is arranged outside the offshore wind turbine tower, an internal base station device for realizing internal data communication of the offshore wind turbine tower is arranged inside the offshore wind turbine tower, the wind power centralized control center is provided with a big data center system, and the big data center system is configured to: when it is determined that the terminal device is connected to the external base station device, data communication is performed with the terminal device based on the external base station device; When it is determined that the terminal device is connected to the internal base station device, data communication is performed with the terminal device based on the internal base station device.

7. An offshore wind turbine tower, characterized in that: The offshore wind turbine power generation equipment includes an offshore wind turbine tower, an external base station device for realizing external data communication of the offshore wind turbine tower is arranged outside the offshore wind turbine tower, and an internal base station device for realizing internal data communication of the offshore wind turbine tower is arranged inside the offshore wind turbine tower.

8. A data communication device, characterized in that: The method is applied to a big data center system of a wind power centralized control center, wherein the wind power centralized control center is connected to an offshore wind power generation equipment via a submarine optical cable, wherein the offshore wind power generation equipment comprises an offshore wind turbine tower, wherein an external base station device for realizing external data communication of the offshore wind turbine tower is arranged outside the offshore wind turbine tower, and an internal base station device for realizing internal data communication of the offshore wind turbine tower is arranged inside the offshore wind turbine tower, comprising: A first data communication module, configured to perform data communication with the terminal device based on the external base station device when it is determined that the terminal device is connected to the external base station device; The second data communication module is used to perform data communication with the terminal device based on the internal base station device when it is determined that the terminal device is connected to the internal base station device.

9. An electronic device, characterized in that: It includes a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory communicate with each other through the communication bus; The memory is used to store computer programs; The processor is used to implement the method according to any one of claims 1 to 5 when executing the program stored in the memory.

10. A computer-readable storage medium having instructions stored thereon, which, when executed by one or more processors, cause the processors to perform the method according to any one of claims 1 to 5.

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