CN205453742U - Wide -area network link networking system of nuclear power plant - Google Patents

Abstract

This application discloses a nuclear power plant wide area network link networking system, including a nuclear power plant network connected to the wide area network through a dedicated line, the nuclear power plant network includes a first core network and a second core network connected to each other, and the dedicated line includes the first wide area network link, the first core network is connected to the WAN through the first WAN link, and the dedicated line also includes a second WAN link, the second core network is connected to the WAN through the second WAN link, and the first The wide area network link is physically isolated from the second wide area network link. This application will not cause the nuclear power plant to fail in the event of failure of any public telecommunications operator's branch machine equipment serving the nuclear power plant or interruption of communication lines, or failure of any telephone main switchboard or office computer network main equipment in the nuclear power plant. Telephone communication and office network interrupt service, thus fully satisfying the single failure principle of nuclear power plant communication and network systems.

Description

A nuclear power plant wide area network link networking system

technical field

This application relates to a nuclear power plant wide area network link networking system.

Background technique

At present, the external WAN networking of nuclear power plants, as shown in Figure 1, generally rents the WAN link of a public telecom operator, and the external telephone communication and office network services share the bandwidth of this WAN link. Because the nuclear power plant is located in a remote location, telecom operators generally lay communication lines to the site of the nuclear power plant by erecting cement poles. Therefore, the existing technical solutions have the following problems: 1. There is a problem of single failure, that is, when the corresponding branch computer room equipment of the public telecommunication operator fails, or when the communication line to the nuclear power plant is interrupted somewhere, it will cause the nuclear power plant to communicate with the public. Telephone communications and office networks are out of service and become islands of information. 2. Telecom operators use concrete poles to lay communication lines to the location of nuclear power plants. In the event of severe natural disasters such as typhoons or snowstorms, communication line downside incidents may occur, resulting in interruption of external telephone communications and office networks of nuclear power plants Serve.

Contents of the invention

The technical problem to be solved in this application is to provide a nuclear power plant wide area network link networking system for the deficiencies of the existing technology.

The technical problem to be solved in this application is solved through the following technical solutions:

A nuclear power plant wide area network link networking system, including a nuclear power plant network connected to the wide area network through a dedicated line, the nuclear power plant network includes a first core network and a second core network connected to each other, the dedicated line includes a first wide area network link, the The first core network is connected to the WAN through the first WAN link, the dedicated line also includes a second WAN link, the second core network is connected to the WAN through the second WAN link, and the first WAN link and The second wide area network link is physically isolated.

The above system also includes a first communication network central computer room and a second communication network central computer room, the first core network is set in the first communication network central computer room, and the second core network is set in the second communication network central computer room. In the computer room of the network center.

In the above system, the first wide area network link includes a cable or an optical cable.

In the above system, the second wide area network link includes an electric cable or an optical cable.

In the above system, the optical cable includes an OPGW optical cable.

In the above system, the OPGW optical cable is set on a 220kV or 500kV line.

In the above system, the first communication network central computer room and the second communication network central computer room respectively include a telephone switch, a core network switch and routing equipment.

In the above system, the first wide area network link is divided into two fixed-bandwidth links, one of which is used to transmit audio and video data, and the other link is used to handle office automation services and browse webpages.

In the above system, the second wide area network link is divided into two links with fixed bandwidth, one of which is used to transmit audio and video data, and the other link is used to handle office automation services and browse webpages.

Owing to adopting above technical scheme, the beneficial effect that makes this application possess is:

In a specific embodiment of the present application, since the nuclear power plant network and the WAN are connected by a dedicated line, the nuclear power plant network includes a first core network and a second core network connected to each other, and the dedicated line includes a first WAN link and a second WAN link. The core network is connected to the WAN through the first WAN link, and the second core network is connected to the WAN through the second WAN link. The first WAN link and the second WAN link are physically isolated, so any public telecom operator serving the nuclear power plant Failure of branch computer room equipment or interruption of communication lines, or failure of any main telephone switchboard or office computer network main equipment in the nuclear power plant, will not cause interruption of the external telephone communication and office network services of the nuclear power plant, thus fully satisfying the requirements of the nuclear power plant. Single failure principle for communication and networking systems.

Description of drawings

Figure 1 is a schematic diagram of the existing nuclear power plant wide area network link networking system;

Fig. 2 is a schematic structural diagram of a nuclear power plant wide area network link networking system in an implementation manner.

detailed description

The present application will be described in further detail below through specific embodiments in conjunction with the accompanying drawings.

As shown in FIG. 2 , an implementation manner of the nuclear power plant wide area network link networking system of the present application includes a nuclear power plant network, and the nuclear power plant network and the wide area network are connected through a dedicated line. The nuclear power plant network includes a first core network and a second core network, and the first core network and the second core network are connected to each other. The dedicated line includes a first WAN link 11, the first core network is connected to the WAN through the first WAN link 11, the dedicated line also includes a second WAN link 12, the second core network is connected to the WAN through the second WAN link 12, and the first WAN The link 11 and the second wide area network link 12 are physically isolated. For example, the first WAN link 11 and the second WAN link 12 may respectively lease WAN links belonging to different operators. The WAN links belonging to two different public telecom operators are leased for the nuclear power plant. In order to improve the reliability of the above two WAN links, the two WAN links are laid to the nuclear power plant along different routes.

The nuclear power plant wide area network link networking system of the present application may further include a first communication network central computer room and a second communication network central computer room. The first core network is set in the central computer room of the first communication network, and the second core network is set in the central computer room of the second communication network. The two WAN links are respectively connected to the two communication network central computer rooms of the nuclear power plant. In the two communication network central computer rooms of the nuclear power plant, there are telephone main switches and office network core network switches and routing equipment respectively. The telephone communication and office network data communication of the nuclear power plant pass through two different sets of telephone main switches and office computers. The main equipment of the network is connected to the external network, which can realize the failure of any public telecommunication operator's branch computer room equipment serving the nuclear power plant or the interruption of communication lines, or the failure of any main telephone switchboard and office computer network main equipment in the nuclear power plant. The nuclear power plant's external telephone communication and office network were interrupted, thus fully satisfying the single failure principle of the nuclear power plant's communication and network systems.

In one embodiment, the first wide area network link 11 may include electric cables or optical cables. The second wide area network link 12 may also comprise electrical or fiber optic cables. As the optical cable, an OPGW optical cable can be used. OPGW optical cables are set on 220kV or 500kV lines. In case of natural disasters such as typhoons or blizzards, the telecommunications operator’s communication line may fall down, and at least one of the two leased WAN links is required to be connected to the telecommunications operator through the OPGW optical cable on the 220kV or 500kV line of the nuclear power plant. If conditions permit, both WAN links can be connected to the OPGW optical cable on the 220kV or 500kV line of the nuclear power plant, which can further improve the external communication system and office network of the nuclear power plant against severe natural disasters such as typhoons or snowstorms Ability.

In the nuclear power plant wide area network link networking system of the present application, the central computer room of the first communication network may include a telephone switch, a core network switch and routing equipment. The central computer room of the second communication network may also include a telephone switch, a core network switch and routing equipment.

In one embodiment, the first wide area network link 11 can be divided into two links with fixed bandwidth, one of which is used to transmit audio and video data, and the other link is used to handle office automation services and browse webpages, etc. . The second wide area network link 12 can also be divided into two links with fixed bandwidth, one of which is used to transmit audio and video data, and the other link is used to handle office automation services and browse webpages. The external business transmitted by the nuclear power plant through the WAN link mainly includes telephone communication, video conferencing, video surveillance and office automation. Each of them is separately divided into two fixed-bandwidth links, one for transmitting telephone communications, video conferencing, video surveillance, and other services, and the other for handling office automation services and browsing the web, so as to fully guarantee telephone communications and the transmission quality of video images to avoid mutual influence between different types of services.

This application can realize that in the case of equipment failure or interruption of communication lines in any branch computer room of any public telecommunication operator serving the nuclear power plant, or failure of any main telephone switchboard and office computer network main equipment in the nuclear power plant, the nuclear power plant will not be damaged. External telephone communication and office network interruption service; by dividing each of the two rented WAN links into two fixed-bandwidth links, the quality of telephone communication and video image transmission can be fully guaranteed, and different types of business can be avoided. At the same time, because the leased WAN link is connected to the telecom operator through the OPGW optical cable on the 220kV or 500kV line of the nuclear power plant, it can further improve the external communication system and office network of the nuclear power plant against severe natural disasters such as typhoons or snowstorms capabilities, so as to better meet the needs of nuclear power plant safety production operation and emergency response for communication systems and office computer networks.

The above content is a further detailed description of the present application in conjunction with specific implementation modes, and it cannot be considered that the specific implementation of the present application is limited to these descriptions. For those of ordinary skill in the technical field to which the present application belongs, some simple deduction or replacement can also be made without departing from the concept of the present application.

Claims (9)

1. nuclear power plant's wide area network link group network system, including with the wide area network nuclear power station network by private line access, described nuclear power station network includes the first core network and the second core network interconnected, described special line includes the first wide area network link, described first core network passes through the first wide area network link connecting wan, it is characterized in that, described special line also includes the second wide area network link, described second core network passes through described second wide area network link connecting wan, described first wide area network link and described second wide area network link physical isolation.

2. nuclear power plant as claimed in claim 1 wide area network link group network system, it is characterized in that, also include the first communication hub machine room and the second communication hub machine room, described first core network is arranged in described first communication hub machine room, and described second core network is arranged in described second communication hub machine room.

3. nuclear power plant as claimed in claim 1 wide area network link group network system, it is characterised in that described first wide area network link includes cable or optical cable.

4. nuclear power plant as claimed in claim 3 wide area network link group network system, it is characterised in that described second wide area network link includes cable or optical cable.

5. nuclear power plant as claimed in claim 4 wide area network link group network system, it is characterised in that described optical cable includes OPGW optical cable.

6. nuclear power plant as claimed in claim 5 wide area network link group network system, it is characterised in that described OPGW optical cable is arranged on 220kV or 500kV circuit.

7. nuclear power plant as claimed in claim 2 wide area network link group network system, it is characterised in that described first communication hub machine room and described second communication hub machine room include telephone exchange, core network switch and routing device respectively.

8. nuclear power plant as claimed in claim 1 wide area network link group network system, it is characterized in that, described first wide area network link is divided into the link of two fixed-bandwidths, and wherein a link is used for transmitting Voice & Video data, and another link is used for handling office automation business and browsing webpage.

9. nuclear power plant as claimed in claim 8 wide area network link group network system, it is characterized in that, described second wide area network link is divided into the link of two fixed-bandwidths, and wherein a link is used for transmitting Voice & Video data, and another link is used for handling office automation business and browsing webpage.