An offshore fishing raft microgrid communication networking system and coordination method

Abstract

The present invention relates to an offshore fish raft microgrid communication networking system in the technical field of communication engineering, comprising a public network 5G communication part and a Beidou short message part: it also includes distributed energy terminals, energy storage measurement and control terminals and power distribution measurement and control terminals, 5G CPE communication terminals, and electric power Beidou-3 satellite communication integrated terminals, as well as 5G base stations, Beidou-3 satellites, secure access areas, 5G front-end servers, Beidou front-end servers, and production control areas. A set of forward isolation devices and a set of reverse isolation devices are arranged between the production control area and the secure access area. The "5G+Beidou short message" integrated networking method has a "wireless" feature and can make full use of space-ground communication resources. This method deeply integrates the public network 5G and Beidou short messages to meet the needs of offshore fish raft microgrid monitoring information transmission in normal communication and natural disaster emergency situations.

Description

Technical Field

[0001] The present invention relates to an offshore fishing raft microgrid communication networking system and a coordination method, and belongs to the technical field of communication engineering. Background Art

[0002] The offshore fish raft wind, solar and storage microgrid integrates technologies such as photovoltaic power generation, wind power generation, energy storage, and digital energy management systems. It is suitable for a variety of multi-energy complementary scenarios. It requires real-time monitoring of the operation of each energy subsystem, and optimized coordinated control of source, grid, load and storage to achieve complementarity and optimized management and control of multiple renewable energy sources.

[0003] Offshore fish rafts are located in the marine environment, are scattered, far from the land, and are difficult to be covered by optical fiber communications. Traditional optical fiber submarine cable communications are expensive, power line carriers are greatly affected by the external environment, microwave communications occupy a large space, require high investment, are sensitive to directionality, and require the terminal antenna to be aligned with the satellite. In complex sea conditions, the buoys sway horizontally and vertically, making it difficult to align the antenna of the offshore node with the satellite. The communication link is extremely unstable and easily interrupted, and all of these are not suitable for offshore fish raft communications in the marine environment.

[0004] Although the current marine public network 5G signal coverage is extending from nearshore to offshore, it is difficult to ensure that all fishing rafts are covered by public network 5G in a short period of time. 5G signals propagate in the sea with almost no obstruction, low loss, and close to free space propagation, which can provide large bandwidth and low latency marine environment communication services, but there will be propagation blind spots due to the influence of the earth's curvature. In addition, the characteristics of marine channels are far more complex than those of land channels. First, there is the natural attenuation caused by diffusion in free space propagation. Second, the sea surface absorbs radio waves. When the propagation distance is long, the diffraction loss caused by the spherical surface must also be considered. Third, typhoons, tsunamis, waves and other special marine weather environments will also affect the propagation and coverage of 5G signals. Fourth, compared with the land environment, a large amount of seawater evaporation makes the atmospheric pressure distribution on the sea surface uneven, which will also affect the propagation of 5G signals. The fading of marine communication channels is particularly sensitive to parameters such as antenna height and angle, which may cause frequent link interruptions.

[0005] Compared with 5G mobile communications, Beidou satellite communications are less affected by the marine environment. Satellite communications are all-round and all-weather, which can improve the reliability and communication efficiency of marine communication access terminals.

[0006] The present invention proposes a networking method suitable for microgrid communication of offshore fish rafts, which deeply integrates the public network 5G and Beidou short messages to meet the needs of normal communication and offshore fish raft microgrid monitoring information transmission in natural disaster emergency situations. Summary of the invention

[0007] In order to solve the above-mentioned problems existing in the prior art, the present invention provides an offshore fish raft microgrid communication networking system and a coordination method.

[0008] The technical solution of the present invention is as follows:

[0009] An offshore fishing raft microgrid communication networking system includes a public network 5G communication part and a Beidou short message part:

[0010] The offshore fish raft microgrid communication networking system includes a distributed energy terminal, an energy storage measurement and control terminal, and a power distribution measurement and control terminal;

[0011] In the public network 5G communication part, a 5G CPE communication terminal is deployed for each of the distributed energy terminal, the energy storage measurement and control terminal, and the power distribution measurement and control terminal; and a 5G base station is also included, and each of the CPE communication terminals is connected to the 5G base station for communication;

[0012] In the Beidou short message part, the distributed energy terminal, the energy storage measurement and control terminal and the power distribution measurement and control terminal are each deployed with a set of electric power Beidou-3 satellite communication integrated terminal, and also include Beidou-3 satellites, and each of the electric power Beidou-3 satellite communication integrated terminals is connected to the Beidou-3 satellite communication;

[0013] A secure access area, wherein the 5G base station is connected to the secure access area via an intranet switch, and the BeiDou-3 satellite is connected to the secure access area via a serial port server;

[0014] A 5G front-end server, the 5G front-end server is arranged in the secure access area and performs pre-processing on the connection of the 5G base station;

[0015] Beidou front-end server, the Beidou front-end server is arranged in the production control area;

[0016] A production control area, wherein a set of forward isolation devices and a set of reverse isolation devices are arranged between the production control area and the safety access area, and the production control area and the safety access area are communicatively connected via the forward isolation devices and the reverse isolation devices.

[0017] As a further preferred option

[0018] It also includes a Beidou command machine, a Beidou front-end machine, a Beidou-3 satellite and a secure access area data receiving and sending channel. The data communication between the Beidou-3 satellite and the Beidou command machine is carried out in accordance with the Beidou satellite communication protocol; the data communication between the Beidou front-end machine and the secure access area is carried out in accordance with the uplink communication protocol of the automation terminals 101 and 104.

[0019] As a further preferred option

[0020] The electric power BeiDou-3 satellite communication integrated terminal is only used for the collection and reception of telemetry, telesignaling and power quality signals.

[0021] As a further preferred option

[0022] A set of vertical encryption authentication device security protection measures are deployed at the wide area network exit of the secure access zone to achieve identity authentication, encryption and decryption, and access control;

[0023] The secure access area is also equipped with a 5G power data collection and verification service platform and Beidou integrated service platform front-end software;

[0024] A secure operating system is used between the aggregation server and the 5G front-end server, and a trusted verification module is deployed to perform static measurement and verification during the system booting, operating system loading, and application loading stages.

[0025] As a further preferred option

[0026] A set of power-specific authentication servers is deployed in the microgrid coordination and control center, and the power-specific authentication server performs authentication control on the terminal nodes; the authentication control content includes: whether the terminal can access the 5G power grid virtual network-slice-service area, whether the legal SIM card is used on the legal terminal, and at which locations the terminal can access the 5G power grid virtual network.

[0027] As a further preferred option

[0028] In the communication network between the 5G base station and the secure access zone, the communication operator 5G adopts 5QI on the wireless network side, plans different 5QIs for different services, and uses 5QI priority scheduling to achieve logical isolation between security zones I and II.

[0029] As a further preferred option

[0030] In the communication network between the 5G base station and the secure access area, the core network side adopts the core network user plane sharing UPF operation mode; the bearer network side adopts soft slices with different QoS to provide differentiated services for different levels of services, and the QoS label changes in real time based on the business data flow requirements.

[0031] A collaborative method for offshore fish raft microgrid communication networking, comprising the following steps:

[0032] 1) The microgrid collaborative controller of the offshore fishing raft microgrid collaborative control center sends a call for test data command to the 5G front-end;

[0033] 2) The 5G front-end first queries the local database to see if there is any data to be tested. If there is no corresponding data, the test command is sent to the acquisition terminal;

[0034] 3) The distributed energy, energy storage and power distribution 5G terminals of each offshore fishing raft microgrid report the telemetry and telesignaling data to the 5G front-end. The 5G front-end establishes a terminal data model based on the measurement point, data formation time and sequence of the received terminal node data and stores it in the local database, and then feeds the data back to the microgrid collaborative controller;

[0035] 4) If the 5G front-end receives 5G data from each measurement and control terminal, it will send the received 5G data from each measurement and control terminal to the microgrid collaborative controller of the offshore fishing raft microgrid collaborative control center;

[0036] 5) If the 5G front-end fails to receive 5G data from each measurement and control terminal or the received data is incomplete, it sends the information such as the address and number of the terminal node that has not been received to the microgrid collaborative controller;

[0037] 6) The microgrid collaborative controller of the offshore fishing raft microgrid collaborative control center sends a call for measurement data command to the Beidou front-end;

[0038] 7) Each acquisition terminal reports the telemetry and telesignaling data to the Beidou front-end. The Beidou front-end will establish a terminal data model based on the measurement point, data formation time and sequence of the received terminal node data and store it in the local database, and then feed the data back to the microgrid collaborative controller.

[0039] The present invention has the following beneficial effects:

[0040] The present invention uses the deep integration of 5G and Beidou short message technology to build a comprehensive and efficient marine communication network for information communication of offshore fish raft microgrids. It fully utilizes the advantages of 5G's large bandwidth, low latency, and wide coverage, and integrates the Beidou short message that is less affected by the marine environment. It has the characteristics of all-day, all-round, and all-weather, taking into account the high real-time requirements of normal microgrid communications and the communication needs of offshore fish raft microgrid monitoring information transmission under emergency conditions of natural disasters in the sea.

[0041] Compared with a single communication method, the "5G+Beidou short message" integrated networking method of the present invention improves the depth and breadth of offshore fishing cage coverage.

[0042] Compared with conventional optical fiber, carrier, microwave and other communication methods, the "5G+Beidou short message" integrated networking method of the present invention has "wireless" characteristics, low operation and maintenance difficulty, short construction period, flexible deployment, small overall investment, and the terminal is suitable for the marine environment. It can make full use of the space-ground communication resources. This method deeply integrates the public network 5G and Beidou short message to meet the needs of normal communication and offshore fish raft microgrid monitoring information transmission in natural disaster emergency situations. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 This is a schematic diagram of the offshore fish raft microgrid communication networking system of the present invention;

[0044] Figure 2 This is a flow chart of the collaborative method for offshore fish raft microgrid communication networking of the present invention. DETAILED DESCRIPTION

[0045] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0046] See also Figure 1 , an offshore fishing raft microgrid communication networking system, comprising

[0047] One 5G CPE communication terminal is deployed in each of the distributed energy, energy storage and power distribution terminals of the offshore fish raft microgrid to carry control services such as the power distribution terminal and distributed power supply control terminal. This terminal is connected to the measurement and control terminal.

[0048] The public wireless 5G network adopts the 5G SA mode, and the communication operator 5G adopts 5QI on the wireless network side and different 5QIs for different business plans, and uses 5QI priority scheduling to achieve logical isolation between security zones I and II; on the core network side, since offshore fish raft microgrids generally have a small coverage area and a small number of nodes, the core network user plane sharing UPF operation mode can be adopted; on the bearer network side, soft slicing with different QoS is used to provide differentiated services for different levels of services. QoS labels should be based on real-time changes in business data flow requirements to meet business needs in real time.

[0049] A power-specific authentication server is deployed in the offshore fishing raft microgrid coordination control center to authenticate the terminal nodes. The authentication server and the terminal should cooperate to realize the authentication control content, including: whether the terminal can access the 5G power grid virtual network-slice-service area, whether the legal SIM card is used on the legal terminal, and at which locations the terminal can access the 5G power grid virtual network.

[0050] A secure access area is set up on the side of the microgrid coordination control center. Relatively independent secure access areas are set up for different types of power control services such as microgrid distribution automation, precise load control, and distributed power supply regulation. A set of forward isolation devices and a set of reverse isolation devices are deployed between the production control area and the secure access area to achieve safe isolation. A set of vertical encryption authentication devices and other security protection measures are deployed at the WAN exit of the secure access area to achieve identity authentication, encryption and decryption, and access control. A secure operating system is used between the aggregation server in the production control area and the front-end server in the secure access area, and a trusted verification module is deployed to perform static measurement and verification during system boot, operating system loading, and application loading.

[0051] One set of integrated Beidou-3 satellite communication terminal is deployed in each of the distributed energy, energy storage and power distribution terminals of the offshore fishing raft microgrid. The Beidou communication module is installed in the remote communication module position of the automated acquisition equipment using a plug-in connection method, and the packaged data message is transmitted to the Beidou satellite through the antenna in accordance with the Beidou communication protocol. Since the Beidou satellite short message is currently distributed in plain text, the bit error rate increases significantly after encryption, which has a great impact on the system and cannot guarantee the safe operation of the system in remote control mode. Therefore, it is only used for the collection and reception of telemetry, telesignaling and power quality signals. At the same time, the single-line transmission capacity of the Beidou-3 satellite level 3 card that the power industry can apply for is 400 bytes / line, which is greater than the upper limit of the transmission data volume of 255 bytes per frame of the 101 and 104 protocols. There is no need to unpack the transmission, which can ensure that the system transmission delay is less than or equal to 2s, ensuring the real-time transmission requirements of the system.

[0052] A Beidou command machine and a Beidou front-end are configured in the offshore fishing raft microgrid coordination and control center as the data receiving and sending channel of the microgrid coordination and control center. The Beidou command machine is used to send instructions from the master station and receive data; the Beidou communication front-end transmits the data collected and reported by the terminal to the business master station server through a dedicated network.

[0053] Communication protocol. The data communication between the Beidou satellite and the Beidou control machine is carried out in accordance with the Beidou satellite communication protocol; the data communication between the Beidou front-end and the offshore fish raft microgrid coordination control center is carried out in accordance with the uplink communication protocol of the automation terminals 101 and 104.

[0054] When the power grid is in normal mode, the offshore fish raft microgrid coordinated control center only receives relevant power information transmitted through the 5G channel, and the distributed energy, energy storage, and power distribution 5G terminals of each offshore fish raft microgrid transmit relevant three-remote data in real time. Beidou short message two-way communication data is only used as a backup channel to verify the accuracy of data in the 5G main channel. The scheduled upload mode is adopted. The data access equipment collects and stores the data of the measurement and control unit according to the set time, and delivers it to the Beidou communication terminal after packaging and uploads it to the offshore fish raft microgrid coordinated control center. When typhoons, tsunamis and other special marine weather environments cause frequent interruptions of 5G signals, the operation enters an emergency state, the system crashes or other necessary situations, the offshore fish raft microgrid coordinated control center Beidou call mode, and each offshore fish raft microgrid distributed energy, energy storage, and power distribution measurement and control device enters the use of Beidou-3 short messages to timely obtain the most urgent and valuable monitoring data currently needed. In this mode, the offshore fish raft microgrid coordinated control center issues a data message call command. After receiving the command, the data application server forwards it to the corresponding measurement and control device, and the measurement and control device collects, stores and uploads data according to the requirements of the command.

[0055] Example 2

[0056] See also Figure 2The main collaborative modes of "5G+Beidou short message" integrated networking are as follows:

[0057] 1) The microgrid collaborative controller of the offshore fishing raft microgrid collaborative control center sends a call for test data command to the 5G front-end;

[0058] 2) The 5G front-end first queries the local database to see if there is any data to be tested. If there is no corresponding data, the test command is sent to the acquisition terminal;

[0059] 3) The distributed energy, energy storage and power distribution 5G terminals of each offshore fishing raft microgrid report the telemetry and telesignaling data to the 5G front-end. The 5G front-end establishes a terminal data model based on the measurement point, data formation time and sequence of the received terminal node data and stores it in the local database, and then feeds the data back to the microgrid collaborative controller;

[0060] 4) If the 5G front-end receives 5G data from each measurement and control terminal, it will send the received 5G data from each measurement and control terminal to the microgrid collaborative controller of the offshore fishing raft microgrid collaborative control center;

[0061] 5) If the 5G front-end fails to receive 5G data from each measurement and control terminal or the received data is incomplete, it sends the information such as the address and number of the terminal node that has not been received to the microgrid collaborative controller;

[0062] 6) The microgrid collaborative controller of the offshore fishing raft microgrid collaborative control center sends a call for measurement data command to the Beidou front-end;

[0063] 7) Each acquisition terminal reports the telemetry and telesignaling data to the Beidou front-end. The Beidou front-end will establish a terminal data model based on the measurement point, data formation time and sequence of the received terminal node data and store it in the local database, and then feed the data back to the microgrid collaborative controller.

[0064] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An offshore fishing raft microgrid communication networking system, characterized in that: Including the public network 5G communication part and the Beidou short message part: The offshore fish raft microgrid communication networking system includes a distributed energy terminal, an energy storage measurement and control terminal, and a power distribution measurement and control terminal; In the public network 5G communication part, a 5G CPE communication terminal is deployed for each of the distributed energy terminal, the energy storage measurement and control terminal, and the power distribution measurement and control terminal; and a 5G base station is also included, and each of the CPE communication terminals is connected to the 5G base station for communication; In the Beidou short message part, the distributed energy terminal, the energy storage measurement and control terminal and the power distribution measurement and control terminal are each deployed with a set of electric power Beidou-3 satellite communication integrated terminal, and also include Beidou-3 satellites, and each of the electric power Beidou-3 satellite communication integrated terminals is connected to the Beidou-3 satellite communication; A secure access area, wherein the 5G base station is connected to the secure access area via an intranet switch, and the BeiDou-3 satellite is connected to the secure access area via a serial port server; A 5G front-end server, which is located in the secure access area and processes the connection of the 5G base station to the front end; Beidou front-end server, the Beidou front-end server is located in the production control area; A production control area, wherein a set of forward isolation devices and a set of reverse isolation devices are arranged between the production control area and the safety access area, and the production control area and the safety access area are communicatively connected via the forward isolation devices and the reverse isolation devices.

2. The offshore fishing raft microgrid communication networking system according to claim 1, characterized in that: It also includes a Beidou command machine, a Beidou front-end machine, a Beidou-3 satellite and a secure access area data receiving and sending channel. The data communication between the Beidou-3 satellite and the Beidou command machine is carried out in accordance with the Beidou satellite communication protocol; the data communication between the Beidou front-end machine and the secure access area is carried out in accordance with the uplink communication protocol of the automation terminals 101 and 104.

3. The offshore fishing raft microgrid communication networking system according to claim 1, characterized in that: The electric power BeiDou-3 satellite communication integrated terminal is only used for the collection and reception of telemetry, telesignaling and power quality signals.

4. The offshore fishing raft microgrid communication networking system according to claim 1, characterized in that: A set of vertical encryption authentication device security protection measures are deployed at the wide area network exit of the secure access zone to achieve identity authentication, encryption and decryption, and access control; The secure access area is also equipped with a 5G power data collection and verification service platform and Beidou integrated service platform front-end software; A secure operating system is used between the aggregation server and the 5G front-end server in the production control area, and a trusted verification module is deployed to perform static measurement and verification during the system boot, operating system loading, and application loading stages.

5. The offshore fishing raft microgrid communication networking system according to claim 1, characterized in that: A set of power-specific authentication servers is deployed in the microgrid coordination and control center, and the power-specific authentication server performs authentication control on the terminal nodes; the authentication control content includes: whether the terminal can access the 5G power grid virtual network-slice-service area, whether the legal SIM card is used on the legal terminal, and at which locations the terminal can access the 5G power grid virtual network.

6. The offshore fishing raft microgrid communication networking system according to claim 1, characterized in that: In the communication network between the 5G base station and the secure access zone, the communication operator 5G adopts 5QI on the wireless network side, plans different 5QIs for different services, and uses 5QI priority scheduling to achieve logical isolation between security zones I and II.

7. The offshore fishing raft microgrid communication networking system according to claim 1, characterized in that: In the communication network between the 5G base station and the secure access area, the core network side adopts the core network user plane sharing UPF operation mode; the bearer network side adopts soft slices with different QoS to provide differentiated services for different levels of services, and the QoS label changes in real time based on the business data flow requirements.

8. The collaborative method of an offshore fishing raft microgrid communication networking system according to claim 1, characterized in that: The following steps are involved: 1) The microgrid collaborative controller of the offshore fishing raft microgrid collaborative control center sends a call for test data command to the 5G front-end; 2) The 5G front-end first queries the local database to see if there is any data to be tested. If there is no corresponding data, it sends the test command to the acquisition terminal; 3) The distributed energy, energy storage and power distribution 5G terminals of each offshore fishing raft microgrid report the telemetry and telesignaling data to the 5G front-end. The 5G front-end will establish a terminal data model based on the measurement point, data formation time and sequence of the received terminal node data and store it in the local database, and then feed the data back to the microgrid collaborative controller; 4) If the 5G front-end receives 5G data from each measurement and control terminal, it will send the received 5G data from each measurement and control terminal to the microgrid collaborative controller of the offshore fish farming microgrid collaborative control center; 5) If the 5G front-end fails to receive 5G data from each measurement and control terminal or the received data is incomplete, the address and number information of the terminal node that has not been received will be sent to the microgrid collaborative controller; 6) The microgrid collaborative controller of the offshore fishing raft microgrid collaborative control center sends a call for measurement data command to the Beidou front-end; 7) Each acquisition terminal reports the telemetry and telesignaling data to the Beidou front-end. The Beidou front-end will establish a terminal data model based on the measurement point, data formation time and sequence of the received terminal node data and store it in the local database, and then feed the data back to the microgrid collaborative controller.

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