CN110995562B - Distributed wind power plant wireless networking system - Google Patents
Distributed wind power plant wireless networking system Download PDFInfo
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- CN110995562B CN110995562B CN201911293284.7A CN201911293284A CN110995562B CN 110995562 B CN110995562 B CN 110995562B CN 201911293284 A CN201911293284 A CN 201911293284A CN 110995562 B CN110995562 B CN 110995562B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/03—Protecting confidentiality, e.g. by encryption
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/46—Interconnection of networks
- H04L12/4641—Virtual LANs, VLANs, e.g. virtual private networks [VPN]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/06—Authentication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/12—Detection or prevention of fraud
- H04W12/121—Wireless intrusion detection systems [WIDS]; Wireless intrusion prevention systems [WIPS]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/18—Self-organising networks, e.g. ad-hoc networks or sensor networks
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/20—Information technology specific aspects, e.g. CAD, simulation, modelling, system security
Abstract
The application discloses wireless networking system of distributed wind-powered electricity generation field, including wind field controller, fan router, control terminal, control side VPN equipment, wherein: the wind field controller is used for acquiring wind power operation data of the wind turbine generator, generating a first message, and encrypting and transmitting the first message to the control terminal through the fan router and the control side VPN device by adopting IPSEC VPN; the control terminal is used for carrying out validity verification on the first message, receiving the first message if the first message passes the validity verification, and sending a control instruction to the wind field controller in an encryption mode through the control side VPN device and the fan router by adopting the IPSEC VPN. According to the technical scheme, encryption communication is carried out through the fan router and the control side VPN equipment in an IPSEC VPN mode, and therefore the safety of communication between the wind field controller and the control terminal in the distributed wind power plant is improved.
Description
Technical Field
The application relates to the technical field of wind power generation, in particular to a wireless networking system of a distributed wind power plant.
Background
Compared with the centralized wind power development, the distributed wind power has the characteristics of small scale, wide distribution, complex terrain and the like. The distributed wind power project does not aim at large-scale long-distance power transmission, and the generated power is connected to a local power grid nearby, so that a booster station is not newly built.
Based on the above characteristics of the distributed wind power plant, currently, the distributed wind power plant generally adopts a wireless networking mode to perform communication and management so as to reduce the construction and management cost of the distributed wind power plant. However, since the distributed wind farm is directly implemented by using a public wireless communication network when the distributed wind farm is communicated and managed by using a wireless networking mode, the wireless networking mode brings convenience to the wind farm communication and has a great potential risk. Specifically, an illegal invader can utilize the defects of the wireless communication network to send wrong control instructions to the wind turbine generator and interfere the normal operation of the wind turbine generator, so that the potential hazards of great safety and economic loss exist; meanwhile, an illegal invader can also send a pseudo instruction to the central monitoring end, steal the running data of the equipment, modify the key data, and cause the problems of project data statistics failure and the like.
In summary, how to improve the security of the communication of the distributed wind farm is a technical problem to be solved urgently by the technical personnel in the field at present.
Disclosure of Invention
In view of the above, an object of the present application is to provide a wireless networking system for a distributed wind farm, which is used for improving the security of communication of the distributed wind farm.
In order to achieve the above purpose, the present application provides the following technical solutions:
a wireless networking system of a distributed wind power plant comprises a wind field controller connected with wind generation sets in the distributed wind power plant, a fan router connected with the wind field controller, a control terminal and control side VPN equipment connected with the control terminal, wherein:
the wind field controller is used for acquiring wind power operation data of the wind turbine generator, generating a first message, and encrypting and transmitting the first message to the control terminal through the fan router and the control side VPN device by adopting IPSEC VPN;
the control terminal is used for carrying out validity verification on the first message, and receiving the first message sent by the wind field controller if the first message passes the validity verification; the control terminal is further used for sending a control instruction to the wind field controller in an encryption mode through the control side VPN device, the fan router and the IPSEC VPN.
Preferably, the system further comprises a maintenance terminal and a maintenance-side VPN device connected to the maintenance terminal, wherein:
the maintenance terminal is used for sending a second message to the control terminal in an encryption mode through the maintenance side VPN device and the control side VPN device by adopting IPSEC VPN;
the control terminal is also used for carrying out validity verification on the second message, receiving the second message if the second message passes the validity verification, and responding to the second message;
when the second message contains an acquisition instruction, the control terminal is used for sending wind power operation data corresponding to the acquisition instruction to the maintenance terminal in an encrypted mode through the maintenance-side VPN device, the control-side VPN device and the IPSEC VPN; and when the second message contains a maintenance instruction, the control terminal is used for sending the maintenance instruction to the wind field controller in an encrypted mode through the control side VPN device and the fan router by adopting the IPSEC VPN.
Preferably, the control-side VPN device, the fan router, and the maintenance-side VPN device all use any one or more of a source IP address, a destination IP address, a priority of a packet, and a protocol type and a characteristic of an IP bearer of the packet as a control point, so as to implement authorized access through the control point.
Preferably, any one or more of a source MAC address, a destination MAC address, an 802.1p priority, and a link layer protocol type of the packet is selected as the control point in the control-side VPN device, the fan router, and the maintenance-side VPN device, so as to implement authorized access through the control point.
Preferably, an account and a password corresponding to the account are both arranged in the maintenance terminal and the control terminal.
Preferably, the maintenance terminal and the control terminal are further configured to modify an account set inside and a password corresponding to the account at preset time intervals, and send the modified account and the password corresponding to the account to a valid user.
Preferably, the maintenance terminal and the control terminal are further configured to receive an account newly set by a valid user and a password corresponding to the account.
The application provides wireless networking system of distributed wind-powered electricity generation field, including wind field controller, fan router, the control terminal that link to each other with wind field controller that links to each other with wind field controller, the control side VPN equipment that links to each other with control terminal in with wind-powered electricity generation field, wherein: the wind field controller is used for acquiring wind power operation data of the wind turbine generator, generating a first message, and encrypting and transmitting the first message to the control terminal through the fan router and the control side VPN device by adopting IPSEC VPN; the control terminal is used for carrying out validity verification on the first message, and receiving the first message sent by the wind field controller if the first message passes the validity verification; the control terminal is further used for sending a control instruction to the wind farm controller in an encryption mode through the control side VPN device and the fan router and by adopting the IPSEC VPN.
According to the technical scheme, the fan router connected with the wind field controller and the control side VPN connected with the control terminal are arranged, when the wind field controller and the control terminal are communicated with each other, encryption communication is carried out through the fan router and the control side VPN equipment in an IPSEC VPN mode, so that an illegal intruder is prevented from sending wrong control instructions to the wind field controller, the illegal intruder is prevented from sending pseudo instructions to the control terminal, and therefore the safety of communication between the wind field controller and the control terminal in the distributed wind power plant is improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a wireless networking system of a distributed wind farm provided in an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Referring to fig. 1, which shows a schematic structural diagram of a wireless networking system of a distributed wind farm provided in an embodiment of the present application, which may include a wind farm controller 1 connected to wind turbine generators in the distributed wind farm, a fan router 2 connected to the wind farm controller 1, a control terminal 3, and a control-side VPN device 4 connected to the control terminal 3, where:
the wind field controller 1 is used for acquiring wind power operation data of a wind turbine generator, generating a first message, and encrypting and transmitting the first message to the control terminal 3 through the fan router 2 and the control side VPN device 4 by adopting IPSEC VPN;
the control terminal 3 is used for carrying out validity verification on the first message, and if the first message passes the validity verification, the control terminal receives the first message sent by the wind farm controller 1; the control terminal 3 is further configured to send a control instruction to the wind farm controller 1 in an encrypted manner through the control-side VPN device 4 and the fan router 2 and by using the IPSEC VPN.
The distributed wind farm wireless networking system provided by the application can comprise a wind farm controller 1 connected with wind turbines in a distributed wind farm, a fan router 2 connected with the wind farm controller 1, a control terminal 3 and control side VPN (virtual private network) equipment connected with the control terminal 3, wherein the wind farm controller 1 and the control terminal 3 are in wireless communication through the fan router 2 and the control side VPN equipment 4 by means of an operator network, the operator network mentioned here can be a 3G network, a 4G network, a 5G network and the like, and correspondingly, the fan router 2 can be a 3G router, a 4G router and the like.
The wind farm controller 1 may acquire wind power operation data of the wind turbine generator from the wind turbine generator in the distributed wind farm, may generate a first message after acquiring the wind power operation data of the wind turbine generator, and may encrypt and transmit the first message to the control terminal 3 through the fan router 2, the control-side VPN device 4, and an operator network and by using an IPSEC (Internet Protocol Security) VPN, so as to ensure that the first message is not tampered by an illegal intruder at will in the transmission process, thereby improving the Security of the transmission of the first message. The IPSEC VPN is a VPN technology that uses an IPSEC protocol to implement remote access, and can provide a secure communication channel for two private networks on a public network, and secure connection is ensured through an encrypted channel.
After receiving the first message sent by the wind farm controller 1, the control terminal 3 may perform validity verification on the first message, and if the first message passes validity verification, the control terminal 3 may receive the first message sent by the wind farm controller 1 and may store the first message, so that the wind power operation data of the wind turbine generator may be subsequently acquired from the control terminal 3, and if the first message does not pass validity verification, the control terminal 3 may refuse to receive the first message that does not pass validity verification. The first message stored by the control terminal 3 can be legal and safe by carrying out validity verification on the first message, so that the safety of the control terminal 3 and the wireless networking system of the distributed wind power plant is improved.
In addition, after receiving the first message which is sent by the wind farm controller 1 and passes the validity verification, the control terminal 3 may determine whether the first message is received repeatedly, may determine whether the first message is outdated at the same time, and if the first message is received repeatedly and/or the first message is outdated, the control terminal 3 may also refuse to receive the first message.
In addition, the control terminal 3 can also send a control instruction to the wind farm controller 1 in an encrypted manner through the control-side VPN device 4, the fan router 2 and the operator network by using the IPSEC VPN, so as to prevent the control instruction from being tampered by an illegal intruder at any time during transmission, thereby ensuring the security of the control instruction issued by the control terminal 3, and enabling the wind farm controller 1 to control the wind turbine generator in the distributed wind farm according to the secure and correct control instruction, so as to ensure the security of the operation of the distributed wind farm.
According to the technical scheme, the fan router connected with the wind field controller and the control side VPN connected with the control terminal are arranged, when the wind field controller and the control terminal are communicated with each other, encryption communication is carried out through the fan router and the control side VPN equipment in an IPSEC VPN mode, so that an illegal intruder is prevented from sending wrong control instructions to the wind field controller, the illegal intruder is prevented from sending pseudo instructions to the control terminal, and therefore the safety of communication between the wind field controller and the control terminal in the distributed wind power plant is improved.
The distributed wind farm wireless networking system provided by the embodiment of the application can further include a maintenance terminal 5 and a maintenance side VPN device 6 connected with the maintenance terminal 5, wherein:
the maintenance terminal 5 is configured to send a second packet to the control terminal 3 in an encrypted manner through the maintenance-side VPN device 6 and the control-side VPN device 4 and by using the IPSEC VPN;
the control terminal 3 is also used for carrying out validity verification on the second message, and if the second message passes the validity verification, the control terminal receives the second message and responds to the second message;
when the second message contains the acquisition instruction, the control terminal 3 is used for sending the wind power operation data corresponding to the acquisition instruction to the maintenance terminal 5 in an encrypted manner through the maintenance-side VPN device 6 and the control-side VPN device 4 and by adopting the IPSEC VPN; when the second message contains the maintenance instruction, the control terminal 3 is configured to send and maintain the maintenance instruction to the wind farm controller 1 in an encrypted manner through the control-side VPN device 4 and the fan router 2 and by using the IPSEC VPN.
The distributed wind farm wireless networking system provided by the embodiment of the application can further comprise a maintenance terminal 5 and a maintenance side VPN device 6 connected with the maintenance terminal 5, wherein the maintenance terminal 5 and the control terminal 3 can perform wireless communication through the maintenance side VPN device 6, the control side VPN device 4 and an operator network, so that the maintenance terminal 5 can obtain the operation condition of the distributed wind farm from the control terminal 3, and can maintain or control the distributed wind farm through the control terminal 3.
The maintenance terminal 5 is configured to send the second packet to the control terminal 3 in an encrypted manner through the maintenance-side VPN device 6 and the control-side VPN device 4 and by using the IPSEC VPN, so as to ensure that the second packet is not tampered by an illegal intruder during transmission, thereby improving the security of transmission of the second packet.
After receiving the second message sent by the maintenance terminal 5, the control terminal 3 may perform validity verification on the second message, and if the second message does not pass the validity verification, the control terminal 3 may refuse to receive the second message, so as to ensure the security of the control terminal 3 and the distributed wind farm; if the validity of the second message passes the validity verification, the control terminal 3 may receive the second message sent by the maintenance terminal 5, and respond to the second message, where the responding to the second message specifically mentioned here is: when the second message contains the acquisition instruction, the control terminal 3 sends the wind power operation data corresponding to the acquisition instruction to the maintenance terminal 5 through the control side VPN device 4 and the maintenance side VPN device 6 in an encrypted manner by adopting the IPSEC VPN, so as to ensure the security of the transmission of the wind power operation data; when the second message contains the maintenance instruction, the control terminal 3 sends the maintenance instruction to the wind farm controller 1 through the control-side VPN device 4 and the fan router 2 in an encrypted manner by using the IPSEC VPN, so that the wind farm controller 1 can execute the corresponding maintenance instruction, and the security of the transmission of the maintenance instruction can be ensured by this manner.
In addition, after receiving the second message which is sent by the maintenance terminal 5 and passes the validity verification, the control terminal 3 may determine whether the second message is repeatedly received within a preset time period, and may also determine whether the second message is outdated, and if the second message is repeatedly received within the preset time period and/or the second message is outdated, the control terminal 3 may refuse to receive the second message, so as to prevent the control terminal 3 from performing repeated response and invalid response on the second message.
According to the distributed wind power plant wireless networking system provided by the embodiment of the application, the control side VPN device 4, the fan router 2 and the maintenance side VPN device 6 all adopt any one or more of a source IP address, a destination IP address, a message priority, a protocol type and characteristics of IP bearing as a control point, so that authorized access is realized through the control point.
In the distributed wind farm wireless networking system provided by the present application, in order to enhance security control and improve the security of the system, advanced ACL (access control list) control can be performed in the control-side VPN device 4, the fan router 2, and the maintenance-side VPN device 6. Specifically, any one or more of three or four layers of information, such as a source IP address, a destination IP address, a message priority, and a protocol type and a characteristic of an IP bearer, of the message may be selected as a control point, that is, any one or more of three or four layers of information, such as a source IP address, a destination IP address, a message priority, a protocol type and a characteristic of an IP bearer, of the message is previously matched with the control-side VPN device 4, the fan router 2, and the maintenance-side VPN device 6, so as to implement authorized access through the selected control point, that is, access can be performed only when information carried by an accessor (the maintenance terminal 5, the wind turbine generator, or the control terminal 3) is matched with the control point, so as to implement access of a specific maintenance terminal, a specific wind turbine generator, and a specific control terminal, thereby avoiding unauthorized access as much as possible.
In the distributed wind farm wireless networking system provided by the embodiment of the application, any one or more of a source MAC address, a destination MAC address, an 802.1p priority and a link layer protocol type of a message selected from the control side VPN device 4, the fan router 2 and the maintenance side VPN device 6 is/are used as a control point, so as to realize authorized access through the control point.
In the distributed wind farm wireless networking system provided by the present application, in order to enhance security control and improve the security of the system, two-layer ACL control may be performed in the control-side VPN device 4, the fan router 2, and the maintenance-side VPN device 6. Specifically, any one or more of two-layer information such as a source MAC address, a destination MAC address, an 802.1p priority, a link layer protocol type, and the like of a message may be selected as a control point, that is, any one or more of two-layer information such as a source MAC address, a destination MAC address, an 802.1p priority, a link layer protocol type, and the like of a message is matched with the control-side VPN device 4, the fan router 2, and the maintenance-side VPN device 6 in advance, so as to implement authorized access through the selected control point, that is, access can be performed only when information carried by an accessor (the maintenance terminal 5, the wind turbine generator, or the control terminal 3) is matched with the control point, so as to implement access of a specific maintenance terminal, a specific wind turbine generator, and a specific control terminal, thereby avoiding unauthorized access as much as possible.
According to the distributed wind power plant wireless networking system provided by the embodiment of the application, the maintenance terminal 5 and the control terminal 3 are both provided with the account and the password corresponding to the account.
In order to improve the security and reliability of the communication between the maintenance terminal 5 and the control terminal 3, an account and a password corresponding to the account may be set in the maintenance terminal 5 and the control terminal 3. When a user accesses the control terminal 3 through the maintenance terminal 5 or controls the wind farm controller 1 through the maintenance terminal 5 and the control terminal 3, the account and the password during login are correct, so that the safety and the reliability of communication between the maintenance terminal 5 and the control terminal 3 are improved.
The account and password set in the maintenance terminal 5 may be different from the account and password set in the control terminal 3 to implement secondary encryption and protection, thereby preventing an illegal user from entering the maintenance terminal 5 and the control terminal 3.
According to the distributed wind power plant wireless networking system provided by the embodiment of the application, the maintenance terminal 5 and the control terminal 3 are further used for modifying an account and a password corresponding to the account which are arranged inside at intervals of a preset time interval, and sending the modified account and the password corresponding to the account to a legal user.
The maintenance terminal 5 and the control terminal 3 can modify the account and the password set in the maintenance terminal at preset time intervals to prevent the account from being stolen by illegal users.
In addition, after the account and the password are modified by the maintenance terminal 5 and the control terminal 3, the modified account and the password corresponding to the account can be sent to the legal user, so that the legal user can smoothly log in the maintenance terminal 5 and the control terminal 3 according to the modified account and the password corresponding to the account.
According to the distributed wind power plant wireless networking system provided by the embodiment of the application, the maintenance terminal 5 and the control terminal 3 are further used for receiving an account newly set by a legal user and a password corresponding to the account.
The maintenance terminal 5 and the control terminal 3 can receive the account and the password newly set by the legal user and use the newly set account and password as the login account and the login password of the legal user to prevent the original account and password from being stolen by the illegal user, so that the security of the wireless networking system of the distributed wind power plant is improved.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Furthermore, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include elements inherent in the list. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element. In addition, parts of the above technical solutions provided in the embodiments of the present application, which are consistent with the implementation principles of corresponding technical solutions in the prior art, are not described in detail so as to avoid redundant description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. The wireless networking system of the distributed wind power plant is characterized by comprising a wind field controller connected with wind generation sets in the distributed wind power plant, a fan router connected with the wind field controller, a control terminal and control side VPN equipment connected with the control terminal, wherein:
the wind field controller is used for acquiring wind power operation data of the wind turbine generator, generating a first message, and encrypting and transmitting the first message to the control terminal through the fan router and the control side VPN device by adopting IPSECVPN;
the control terminal is used for carrying out validity verification on the first message, and receiving the first message sent by the wind field controller if the first message passes the validity verification; the control terminal is further used for sending a control instruction to the wind field controller in an encryption mode through the control side VPN device and the fan router by adopting IPSEC VPN;
the system also comprises a maintenance terminal and a maintenance side VPN device connected with the maintenance terminal, wherein:
the maintenance terminal is used for sending a second message to the control terminal in an encryption mode through the maintenance side VPN device and the control side VPN device by adopting IPSEC VPN;
the control terminal is also used for carrying out validity verification on the second message, receiving the second message if the second message passes the validity verification, and responding to the second message;
when the second message contains an acquisition instruction, the control terminal is used for sending wind power operation data corresponding to the acquisition instruction to the maintenance terminal in an encrypted mode through the maintenance-side VPN device, the control-side VPN device and the IPSEC VPN; and when the second message contains a maintenance instruction, the control terminal is used for sending the maintenance instruction to the wind field controller in an encrypted mode through the control side VPN device and the fan router by adopting the IPSEC VPN.
2. The wireless networking system of distributed wind farms according to claim 1, wherein the control-side VPN device, the fan router, and the maintenance-side VPN device all use any one or more of a source IP address, a destination IP address, a priority of a message, and a protocol type and characteristics of an IP bearer of the message as a control point to realize authorized access through the control point.
3. The wireless networking system for distributed wind farms according to claim 1, wherein any one or more of a source MAC address, a destination MAC address, an 802.1p priority, and a link layer protocol type of a selected message in the control-side VPN device, the fan router, and the maintenance-side VPN device is used as a control point to realize authorized access through the control point.
4. The wireless networking system for distributed wind farms according to claim 1, wherein an account and a password corresponding to the account are provided in each of the maintenance terminal and the control terminal.
5. The wireless networking system for distributed wind farms according to claim 4, wherein the maintenance terminal and the control terminal are further configured to modify an account and a password corresponding to the account, which are set inside, at preset time intervals, and send the modified account and the password corresponding to the account to a legal user.
6. The wireless networking system for distributed wind farms of claim 4, wherein the maintenance terminal and the control terminal are further configured to receive an account newly set by a valid user and a password corresponding to the account.
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