Nuclear power plant operation maintenance system and nuclear power plant operation maintenance method

Abstract

The embodiment of the invention provides a nuclear power plant operation maintenance system and a nuclear power plant operation maintenance method, and belongs to the technical field of nuclear power plant equipment maintenance. The system comprises a collaborative maintenance terminal, a first proxy server arranged in an intranet area of the nuclear power plant, a second proxy server arranged in a network isolation area, an intranet terminal and an extranet terminal, and the collaborative maintenance terminal obtains maintenance data of an operation area of the nuclear power plant and sends the maintenance data to the first proxy server; the first proxy server forwards the maintenance data to an intranet terminal and a second proxy server, and the second proxy server forwards the maintenance data to an extranet terminal; the extranet terminal receives the maintenance data and sends the first maintenance suggestion information to the collaborative maintenance terminal; and the intranet terminal receives the maintenance data and sends the second maintenance suggestion information to the collaborative maintenance terminal. According to the embodiment of the invention, the network environment limitation of the nuclear power plant can be broken, so that technical guidance personnel outside a nuclear plant operation area can guide the maintenance work.

Description

Technical Field

[0001] This application relates to the technical field of nuclear power plant equipment maintenance, and particularly to a nuclear power plant operation maintenance system and a nuclear power plant operation maintenance method. Background Art

[0002] Nuclear power enterprises usually divide the enterprise park into a core area, a buffer area, a general area, etc. Each area uses its own network. For example, the core area (nuclear power plant operation area) uses a closed network, the buffer area uses the enterprise's internal local area network, and the general area uses a public network to achieve information isolation in different areas.

[0003] When maintaining nuclear power equipment in the core area, in order to ensure the security of enterprise data, maintenance equipment is generally deployed in the internal network environment of the core area. Due to the limitation of the network environment, technical guidance personnel located in other parks cannot obtain maintenance data through the external network and cannot provide corresponding guidance on the nuclear power plant maintenance operation in a timely manner.

[0004] In the related art, data in different enterprise parks is transmitted through paper documents and storage media (such as memories, USB flash drives). This method cannot obtain maintenance data in real time, resulting in low maintenance efficiency. Therefore, how to break the network limitations and information isolation in different areas, realize the real-time transmission and viewing of maintenance data in different areas, so that external technical guidance personnel can obtain maintenance data and provide corresponding guidance on the nuclear power plant maintenance operation has become an urgent technical problem to be solved. Summary of the Invention

[0005] The main purpose of the embodiments of this application is to propose a nuclear power plant operation maintenance system and a nuclear power plant operation maintenance method, which can break the network limitations and information isolation in different areas, realize the real-time transmission and viewing of maintenance data in different areas, so that technical guidance personnel outside the nuclear power plant operation area can obtain maintenance data in a timely manner and provide corresponding guidance on the nuclear power plant maintenance operation.

[0006] To achieve the above object, a first aspect of the embodiments of this application proposes a nuclear power plant operation maintenance system, which includes:

[0007] A collaborative maintenance terminal, configured to obtain maintenance data of the nuclear power plant operation area and send the maintenance data to a first proxy server based on the internal wireless network in the nuclear power plant operation area;

[0008] A first proxy server set in the nuclear power plant internal network area, configured to forward the maintenance data to the internal network terminal in the nuclear power plant internal network area and a second proxy server set in the network isolation area;

[0009] A second proxy server disposed in the network isolation area for forwarding the maintenance data sent by the first proxy server to an external network terminal, where the network isolation area is an area that isolates the intranet area of the nuclear power plant from the Internet;

[0010] An external network terminal for receiving the maintenance data sent by the second proxy server and sending the first maintenance suggestion information determined based on the maintenance data to the collaborative maintenance terminal via the second proxy server;

[0011] An internal network terminal for receiving the maintenance data sent by the first proxy server and sending the second maintenance suggestion information determined based on the maintenance data to the collaborative maintenance terminal via the first proxy server.

[0012] In some embodiments, the system further includes: a maintenance data collection device, and the maintenance data collection device includes:

[0013] A wearable health data collection device for collecting the physical characteristic data of maintenance personnel;

[0014] A multimedia data collection device for collecting multimedia data of the nuclear power plant operation area.

[0015] In some embodiments, the system further includes: a maintenance instruction generation server, and the maintenance instruction generation server is configured to generate a maintenance instruction according to the physical characteristic data, the multimedia data of the nuclear power plant operation area, the first maintenance suggestion information, and the second maintenance suggestion information, and send the maintenance instruction to the collaborative maintenance terminal.

[0016] In some embodiments, the maintenance instruction generation server is further configured to generate a maintenance guidance video according to the physical characteristic data, the multimedia data of the nuclear power plant operation area, the first maintenance suggestion information, and the second maintenance suggestion information;

[0017] The system further includes wearable maintenance guidance glasses, and the wearable maintenance guidance glasses are configured to receive the maintenance guidance video sent by the maintenance instruction generation server and play the maintenance guidance video.

[0018] In some embodiments, the wearable maintenance guidance glasses are further configured to collect the on-site images of the nuclear power plant operation, generate an operation guidance video based on the on-site images and the maintenance guidance video, and display the operation guidance video.

[0019] In some embodiments, the system further includes a storage server, and the storage server is configured to store the maintenance data of the nuclear power plant operation area.

[0020] To achieve the above object, a second aspect of the embodiments of the present application proposes a nuclear power plant operation and maintenance method, which is applied to the nuclear power plant operation and maintenance system as described in the first aspect. The method includes:

[0021] The collaborative maintenance terminal acquires maintenance data of the nuclear power plant operation area and sends the maintenance data to the first proxy server based on the internal wireless network in the nuclear power plant operation area;

[0022] The first proxy server forwards the maintenance data to the internal network terminal and the second proxy server in the nuclear power plant internal network area;

[0023] The second proxy server forwards the maintenance data sent by the first proxy server to the external network terminal;

[0024] The external network terminal receives the maintenance data sent by the second proxy server, and sends the first maintenance recommendation information determined based on the maintenance data to the collaborative maintenance terminal through the second proxy server;

[0025] The internal network terminal receives the maintenance data sent by the first proxy server, and sends the second maintenance recommendation information determined based on the maintenance data to the collaborative maintenance terminal through the first proxy server.

[0026] In some embodiments, the method for the collaborative maintenance terminal to acquire maintenance data of the nuclear power plant operation area includes:

[0027] The wearable health data acquisition device acquires the physical characteristic data of the maintenance personnel and sends the physical characteristic data to the collaborative maintenance terminal;

[0028] The multimedia data acquisition device acquires the multimedia data of the nuclear power plant operation area and sends the multimedia data to the collaborative maintenance terminal.

[0029] In some embodiments, the method further includes:

[0030] The collaborative maintenance terminal acquires the maintenance data of the nuclear power plant operation area and sends the maintenance data to the storage server for storage through the first proxy server;

[0031] The storage server sends the maintenance data to the internal network terminal or the external network terminal.

[0032] In some embodiments, the method further includes:

[0033] The maintenance instruction generation server generates a maintenance instruction according to the physical characteristic data, the multimedia data of the nuclear power plant operation area, the first maintenance recommendation information, and the second maintenance recommendation information, and sends the maintenance instruction to the collaborative maintenance terminal.

[0034] A nuclear power plant operation and maintenance system proposed in this application sets up a network isolation area in the maintenance system. The network isolation area is used to isolate the intranet area of the nuclear power plant from the Internet to ensure the data security of the nuclear power plant. A collaborative maintenance terminal is set up in the nuclear power plant operation area. The collaborative maintenance terminal sends the maintenance data obtained from the nuclear power plant operation area to the first proxy server set up in the intranet area of the nuclear power plant through the internal wireless network in the nuclear power plant operation area, and then the first proxy server sends the maintenance data to the second proxy server set up in the network isolation area. In the embodiment of this application, the external network terminal can access the proxy server in the intranet area of the nuclear power plant by accessing the Internet address in the first proxy server and the second proxy server, so as to realize the network connection between the intranet area of the nuclear power plant and the external Internet, and further break the data isolation between the internal and external networks. Technical guidance personnel can obtain maintenance data through the external network terminal, determine the first maintenance suggestion information, and send the first maintenance suggestion information to the collaborative maintenance terminal to guide the maintenance personnel in the nuclear power plant operation area for maintenance.

[0035] In addition, the first proxy service area can also send the maintenance data of the nuclear power plant operation area to the internal network terminal. In the embodiment of this application, the first proxy server is used to realize the network connection between the internal network terminal and the nuclear power plant operation area, and further break the data isolation between the nuclear power plant operation area and the intranet area of the nuclear power plant. After the technical guidance personnel obtain the maintenance data through the internal network terminal, they determine the second maintenance suggestion information and send the second maintenance suggestion information to the collaborative maintenance terminal to guide the maintenance personnel in the nuclear power plant operation area for maintenance.

[0036] The nuclear power plant operation and maintenance system provided by the embodiment of this application can realize the interconnection and intercommunication of the networks in the three areas of the nuclear power plant operation area, the intranet area of the nuclear power plant and the Internet, break the data transmission restrictions between the areas, so that the technical guidance personnel outside the nuclear power plant operation area can guide the maintenance work in the nuclear power plant operation area. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 is a schematic diagram of the nuclear power plant operation and maintenance system provided by the embodiment of this application;

[0038] Figure 2 is a schematic diagram of the wearable health data acquisition device accessing the maintenance system provided by the embodiment of this application;

[0039] Figure 3 is a schematic diagram of the timing process of initiating remote collaboration provided by the embodiment of this application;

[0040] Figure 4 is a schematic diagram of the timing process of initiating mutually exclusive events provided by the embodiment of this application;

[0041] Figure 5It is a schematic diagram of the system storage design plan provided by the embodiments of the present application;

[0042] Figure 6 It is a flowchart of the nuclear power plant operation and maintenance method provided by the embodiments of the present application. Detailed implementation manners

[0043] In order to make the objectives, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, but not to limit the present application.

[0044] It should be noted that although the functional modules are divided in the device schematic diagram and the logical order is shown in the flowchart, in some cases, the steps shown or described may be executed in a different order from the module division in the device or the order in the flowchart. Terms such as "first" and "second" in the description, claims and the above drawings are used to distinguish similar objects, and do not necessarily need to describe a specific order or sequence.

[0045] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present application belongs. The terms used herein are only for the purpose of describing the embodiments of the present application and are not intended to limit the present application.

[0046] Before introducing in detail the nuclear power plant operation and maintenance system provided by the present application, the application scenario of the present application will be introduced first. Multiple parks are divided in the nuclear power plant, such as the office area, the living area, and the nuclear power plant operation area, etc. Each area in the nuclear power plant belongs to the nuclear power plant intranet area. It should be noted that although the nuclear power plant operation area belongs to the nuclear power plant intranet area, it uses a closed network and cannot perform data transmission with other areas in the intranet area. Areas such as the office area and the living area other than the nuclear power plant operation area use the local area network inside the nuclear power plant and also cannot perform data transmission with the Internet outside the nuclear power plant. Therefore, due to the limitation of the network environment, the areas cannot perform data transmission with each other, which brings great inconvenience to the work of the nuclear power plant.

[0047] For example, when maintenance personnel of a nuclear power plant perform maintenance on the operation area of the nuclear power plant, they need to send maintenance data to technical guidance personnel. The technical guidance personnel provide corresponding guidance suggestions for the maintenance operation based on the maintenance data and send the provided guidance suggestions to the maintenance personnel. Among them, the guidance suggestions can be text, audio / video, images, etc. However, due to network environment limitations, data transmission in each area is restricted. When the technical guidance personnel are in the office area or outside the nuclear power plant, they cannot obtain the maintenance data in a timely manner and need to frequently enter and exit the operation area of the nuclear power plant to complete the guidance of the maintenance process, which ultimately leads to low maintenance efficiency. Related technologies use paper documents and storage media for data transmission between different areas. Although wireless communication technology can be used for data transmission within each area, the networks between different areas are still not connected, resulting in restrictions on data transmission between different areas. The technical guidance personnel located outside the operation area of the nuclear power plant cannot obtain the maintenance data in a timely manner and provide timely guidance for the maintenance work, resulting in low maintenance efficiency.

[0048] Based on this, the embodiments of the present application provide a nuclear power plant operation maintenance system and a nuclear power plant operation maintenance method, aiming to break the network restrictions and information isolation between different areas, realize the real-time transmission and viewing of maintenance data in different areas, so that the technical guidance personnel outside the operation area of the nuclear power plant can obtain the maintenance data in a timely manner and provide corresponding guidance for the nuclear power plant maintenance operation without being on-site.

[0049] The nuclear power plant operation maintenance system and the nuclear power plant operation maintenance method provided by the embodiments of the present application are specifically described through the following embodiments. First, the nuclear power plant operation maintenance system in the embodiments of the present application is described. The maintenance system includes:

[0050] A collaborative maintenance terminal, configured to obtain maintenance data of the operation area of the nuclear power plant and send the maintenance data to a first proxy server based on the internal wireless network within the operation area of the nuclear power plant;

[0051] A first proxy server disposed in the internal network area of the nuclear power plant, configured to forward the maintenance data to an internal network terminal in the internal network area of the nuclear power plant and a second proxy server disposed in the network isolation area;

[0052] A second proxy server disposed in the network isolation area, configured to forward the maintenance data sent by the first proxy server to an external network terminal. The network isolation area is an area that isolates the internal network area of the nuclear power plant from the Internet;

[0053] An external network terminal, configured to receive the maintenance data sent by the second proxy server and send the first maintenance advice information determined based on the maintenance data to the collaborative maintenance terminal through the second proxy server;

[0054] An intranet terminal is used to receive the maintenance data sent by the first proxy server and send the second maintenance suggestion information determined based on the maintenance data to the collaborative maintenance terminal via the first proxy server.

[0055] Please refer to Figure 1 , Figure 1 which is a schematic diagram of the nuclear power plant operation and maintenance system provided by an embodiment of the present application. The collaborative maintenance terminal is the terminal device of maintenance personnel and can be a mobile phone, a tablet, a notebook, etc. The collaborative maintenance terminal can obtain the maintenance data through the internal wireless network in the nuclear power plant operation area, and the internal wireless network in the nuclear power plant operation area includes 4G or WIFI. The maintenance data is some pictures, audio, etc. in the nuclear power plant operation area collected by maintenance operation personnel, such as images of the core components of the nuclear reactor. After the collaborative maintenance terminal obtains the maintenance data, it sends the maintenance data to the first proxy server through the internal wireless network in the nuclear power plant operation area.

[0056] Specifically, the first proxy server is set in the nuclear power plant intranet area. The first proxy server can be an Nginx cluster, which consists of multiple servers, and an Nginx instance runs on each server. Nginx is a high-performance Hypertext Transfer Protocol (HTTP) and reverse proxy web server. Since the nuclear power plant intranet system does not support directly initiating requests from the Internet area to the nuclear power plant intranet area, the first proxy server is required to perform security verification of the requests and forward the requests. In the case of Nginx cluster deployment, the system can perform load balancing for a large number of requests. The first proxy server can receive the maintenance data sent by the collaborative maintenance terminal and send it to the intranet terminal in the nuclear power plant intranet area or the second proxy server set in the network isolation area.

[0057] The intranet terminal can be the terminal device in the nuclear power plant office area or living area, such as the office computer or mobile phone used by technical guidance personnel in the office area. The intranet terminal can receive the maintenance data sent by the first proxy server. The second proxy server can be an Nginx cluster, which can receive the maintenance data sent by the first proxy server and forward it to the external network terminal. The first proxy server and the second proxy server can be connected by a data transmission line in a wired manner. The external network terminal is the terminal device outside the nuclear power plant and can be the terminal device using the Internet.

[0058] The network isolation area is a Demilitarized Zone (DMZ) used to isolate the intranet area of the nuclear power plant from the Internet. It acts as a buffer zone between the two networks, reducing the risk of direct external network attacks on the internal network. In addition to setting up the second proxy server in the network isolation area, a network gateway can also be set up to perform security verification on requests from the Internet forwarded by the second proxy server and forward the requests to the first proxy server. Furthermore, a firewall can be set up between the network isolation area and the Internet area to further ensure the security of requests received by the second proxy server.

[0059] In the embodiments of the present application, the first proxy server and the second proxy server can perform operations such as network address translation, access control, authentication, and authorization. They can also check and filter data transmitted from the external network to the internal network to prevent malicious code and data that do not conform to the security policy from flowing into the internal network. After confirming security, a network connection is established between different areas for data transmission between different areas. Through the layered deployment of the first proxy server, the second proxy server, and the network isolation area in the embodiments of the present application, security verification is performed on requests initiated from different areas or the security of transmitted data is verified to ensure the security of data transmission between different areas. In addition, a bridge for establishing a network connection between each area is built to break the data isolation between different areas and achieve real-time transmission of data in different areas.

[0060] After the network connection between different areas is established, the external network terminal receives the maintenance data sent by the second proxy server so that the technical guidance personnel can view the maintenance data in real time. The technical guidance personnel or the external network terminal determines the first maintenance recommendation information based on the maintenance data. The first maintenance recommendation information is the maintenance recommendation information generated in the external network of the nuclear power plant and is used to provide equipment maintenance recommendations for the maintenance personnel in the operation area of the nuclear power plant. The first maintenance recommendation information can be in different forms, such as instant messages, voice, text, and video. The external network terminal device sends the first maintenance recommendation information to the collaborative maintenance terminal through the second proxy server to guide the maintenance personnel.

[0061] In addition, the internal network terminal can also receive the maintenance data through the first proxy server and determine the second maintenance recommendation information based on the maintenance data. The second maintenance recommendation information is the maintenance recommendation information generated in the intranet area of the nuclear power plant. The internal network terminal can send the second maintenance recommendation information to the collaborative maintenance terminal through the first proxy server.

[0062] The nuclear power plant operation and maintenance system provided by the embodiments of the present application can break the network restrictions and information isolation between different areas, realize the real-time transmission and viewing of maintenance data in different areas, so that the technical guidance personnel outside the operation area of the nuclear power plant can obtain the maintenance data in time and give corresponding guidance to the nuclear power plant maintenance operation.

[0063] In some embodiments, the system further includes: a maintenance data acquisition device, which includes:

[0064] A wearable health data acquisition device for acquiring the physical characteristic data of maintenance personnel;

[0065] A multimedia data acquisition device for acquiring the multimedia data of the nuclear power plant operation area.

[0066] Specifically, the maintenance data acquisition device collects the relevant information of the location where an abnormality occurs in the nuclear power plant operation area. For example, if the air pressure at a certain place is too low, it will collect the specific location where the air pressure is too low and record the current air pressure value, etc. The wearable health data acquisition device can be a Bluetooth bracelet, a watch, a wearable heart rate monitor, or an electrocardiogram monitoring chest strap and clothing, etc., which is not limited here. There is a certain amount of radiation in the nuclear power plant operation area, and there are certain requirements for the physical health status of maintenance personnel to complete the maintenance work. Therefore, it is necessary to monitor the physical health status of maintenance personnel in real time to ensure the safety of maintenance personnel and the smooth progress of maintenance work. The wearable health data acquisition device can collect the physical characteristic data of maintenance personnel, etc. The physical characteristic data of maintenance personnel can include blood pressure, blood oxygen, heart rate, etc.

[0067] The multimedia data acquisition device can be an endoscope (such as an underwater camera endoscope), a recorder (such as a law enforcement recorder, a body-worn recorder, etc.), a smart glasses, etc. The multimedia data acquisition device is used to acquire the multimedia data of the nuclear power plant operation area, collect the on-site pictures, videos and audio data, and receive the acquired multimedia data through the collaborative maintenance terminal, and transmit the acquired data to the server of the maintenance system for storage through the built-in application software of the collaborative maintenance terminal. The device can be selected according to the requirements of the operation site, which is not limited here.

[0068] Further, the maintenance data acquisition device is connected to the collaborative maintenance terminal and then accesses the maintenance system. Hereinafter, some embodiments of the maintenance data acquisition device accessing the maintenance system will be introduced. The Bluetooth bracelet is connected to the collaborative maintenance terminal via Bluetooth. The collaborative maintenance terminal runs the application configuration software of the Bluetooth bracelet, calls the Software Development Kit (SDK) in the application configuration software, reads the physical characteristic data of the wearer generated by the Bluetooth bracelet into the system, and then pushes it to the maintenance system platform via the Message Queuing Telemetry Transport (MQTT) protocol or the Windows SharePoint Services (WSS). The maintenance system platform can display the physical characteristic data of the maintenance personnel at the position corresponding to the "personnel physical signs" control and store the physical characteristic data of the maintenance personnel in the database. In addition, in addition to transmitting data from the Bluetooth bracelet to the maintenance system platform, data can also be sent from the maintenance system platform to the Bluetooth bracelet. Among them, the maintenance system platform includes multiple different types of databases and multiple display modules, which will be introduced in detail later.

[0069] In some embodiments, the underwater camera is usually equipped with a standard video output interface, such as the High Definition Multimedia Interface (HDMI). The underwater camera is connected to the collaborative maintenance terminal via an HDMI to Type-C interface and transmits the captured video image to the collaborative maintenance terminal. The collaborative maintenance terminal runs the application configuration software of the underwater camera, calls the Software Development Kit in the application configuration software, and when the video image of the underwater camera is successfully obtained, it is connected and transmitted to the maintenance system platform via WiFi. The maintenance system platform can display the image captured by the underwater camera at the position corresponding to the "video record" control and store the image file captured by the underwater camera in the database.

[0070] In some embodiments, the law enforcement recorder can be connected to the collaborative maintenance terminal via a 4G communication transmission data cable. The collaborative maintenance terminal runs the application configuration software of the law enforcement recorder, calls the Software Development Kit in the application configuration software, reads the on-site image obtained by the law enforcement recorder camera, and then transmits it to the maintenance system platform. The maintenance system platform can display the on-site image obtained by the law enforcement recorder at the position corresponding to the "operation control" control and store the image file captured by the law enforcement recorder in the database.

[0071] In some embodiments, please refer to Figure 2 , Figure 2This is a schematic diagram of the access and maintenance system for the wearable health data collection device provided by the embodiments of the present application. Taking the smart glasses as an example of the wearable health data collection device, the smart glasses are connected to the collaborative maintenance terminal through a Type-C interface. A dedicated application program is installed in the collaborative maintenance terminal, and a software development kit provided by the smart glasses is integrated inside the application program to support controlling the smart glasses to collect on-site pictures of the operation area. When the collaborative maintenance terminal starts and calls the software development kit of the smart glasses, it can obtain the real-time video pictures captured by the camera of the smart glasses. In addition, the collaborative maintenance terminal is also configured with function modules such as "remote monitoring", "remote collaboration", "local photographing / recording", and "pre-plan execution" for maintenance personnel to use.

[0072] The collaborative maintenance terminal sends the collected pictures to the remote maintenance system platform through the Hypertext Transfer Protocol Secure (HTTPS) protocol or the Real-Time Communication (RTC) protocol.

[0073] After receiving the video stream collected by the smart glasses, the maintenance system platform processes it. This can include analyzing the video content, generating relevant form data, or adding a "frozen screen mark" to the video picture as needed for subsequent reference or indication.

[0074] Furthermore, the maintenance system platform sends the processed form data and frozen screen mark back to the smart glasses through the above protocols and displays them in real time on the display screen. Based on this, the maintenance personnel can not only see the real scene captured by the camera but also view the additional information analyzed and processed by the system at the same time. Displaying the maintenance process for the maintenance personnel on the on-site equipment through Augmented Reality (AR) helps improve the maintenance efficiency.

[0075] In some embodiments, the maintenance system platform can include function modules such as real-time communication streaming media, remote monitoring, Object Storage Service (OSS), information library, remote collaboration, and pre-plan execution, which store the corresponding maintenance data or display the corresponding maintenance data respectively.

[0076] In some embodiments, please refer to Figure 3 , Figure 3 This is a schematic diagram of the timing process for initiating remote collaboration provided by the embodiments of the present application. The maintenance personnel initiate a remote collaboration request (such as a live session request) on the collaborative maintenance terminal (front end), for example, click the "Start Remote Collaboration Meeting" control. The remote collaboration request usually includes user identity authentication information and session parameters (such as room number, participant list, etc.).

[0077] The collaborative maintenance terminal sends the remote collaboration request to the remote collaboration control terminal, and the remote collaboration control terminal (RemoteCollaboration Controller) sends the remote collaboration request to the remote collaboration service layer (RemoteCollaboration Service). The remote collaboration server layer sends the remote collaboration request to the remote collaboration service implementation terminal (RemoteCollaboration Service Implement), and finally calls the real-time session interface to access the remote protocol server.

[0078] The remote protocol server responds to the request initiated by the front end. The response contains necessary data information (such as session ID, access token, video stream address, etc.) and actual video stream data. The remote protocol server sends the relevant data back to the front end step by step.

[0079] After receiving the data, the front end can build page elements based on the data sent back by the remote collaboration server, such as displaying a list of participants, a conference control panel, etc., and render the video stream at the same time so that maintenance personnel can see real-time video images, thereby realizing the video communication function of remote collaboration.

[0080] In some embodiments, see Figure 4 , Figure 4 : This is a schematic diagram of the timing flow of initiating mutually exclusive events provided in the embodiment of the present application. Mutually exclusive event processing is mainly used in scenarios where it is necessary to coordinate interactive operations between multiple users, such as online meetings, collaborative editing, etc. In the embodiment of the present application, remote collaborative meetings can be coordinated through mutually exclusive event processing to ensure the smooth progress of remote collaborative meetings.

[0081] Specifically, maintenance personnel or technical guidance personnel can trigger certain operations in the front-end interface of the remote collaboration application, such as wanting to use screen control alone (freeze the screen), share the screen, or request to track a participant. Since these operations are mutually exclusive in nature, only one user can perform such operations at the same time. Therefore, the front-end initiates a request by calling the back-end start mutex event (startMutex) interface to pass the corresponding event type (freeze screen, share, track) to the server.

[0082] After the backend receives a request, it can perform permission verification and forward the request to the remote collaboration server. After receiving the request forwarded by the backend, the remote collaboration server will perform corresponding operations, such as setting the screen to read-only mode (freezing the screen), establishing a screen sharing session (sharing), and adjusting the video stream to track a specified user (tracking). The remote collaboration server will send the call result to the backend. After receiving the call result from the remote collaboration server, the backend will return the final call result and corresponding data to the frontend.

[0083] After the frontend application receives the response from the backend, it will update the interface according to the returned call result and parameters. For example, if the screen freezing request is successful, the frontend can display an indication of "The screen has been locked". The embodiments of the present application can ensure that remote collaboration users can intuitively see the operation effect, ensuring a good user experience and collaboration effect.

[0084] In some embodiments, the system further includes: a maintenance instruction generation server, which is used to generate maintenance instructions according to body feature data, multimedia data of the nuclear power plant operation area, first maintenance advice information, and second maintenance advice information, and send the maintenance instructions to the collaborative maintenance terminal.

[0085] Specifically, when performing maintenance work on a nuclear power plant, safety and professionalism need to be considered. For example, when working in an area with high radiation, it is preferred to select maintenance personnel whose physical conditions meet safety standards and have corresponding qualifications for maintenance, and monitor the physical characteristics of the maintenance personnel during maintenance in real time to ensure the safety of the maintenance personnel. In addition, it is necessary to analyze the multimedia data of the nuclear power plant operation area provided by the maintenance personnel to find the cause of the failure, the location of the equipment, and the degree of equipment damage, etc., so as to formulate corresponding maintenance strategies. Further, it is also necessary to accurately guide and improve the maintenance strategy according to the first maintenance advice information or the second maintenance advice information provided by the technical guidance personnel.

[0086] Further, maintenance instructions are generated according to body feature data, multimedia data of the nuclear power plant operation area, first maintenance advice information, and second maintenance advice information. The maintenance instructions can be to inform the maintenance personnel of the specific location of the faulty equipment, or to inform the maintenance personnel of the specific cause of the failure, etc. The form of the maintenance instructions can be text, audio, etc., which is not limited here.

[0087] The maintenance instruction generation server sends the generated maintenance instructions to the collaborative maintenance terminal and displays them on the terminal interface. The maintenance personnel can obtain the maintenance instructions and perform maintenance according to the maintenance instructions. The embodiments of the present application automatically generate accurate and reliable maintenance instructions through the maintenance instruction generation server by integrating various factors, which is beneficial to improving the efficiency of nuclear power plant maintenance.

[0088] In some embodiments, the maintenance instruction generation server is further configured to generate a maintenance guidance video based on the body feature data, the multimedia data of the nuclear power plant operation area, the first maintenance advice information, and the second maintenance advice information;

[0089] The system further includes wearable maintenance guidance glasses, which are configured to receive the maintenance guidance video sent by the maintenance instruction generation server and play the maintenance guidance video.

[0090] Specifically, in addition to generating maintenance instructions based on the body feature data, the multimedia data of the nuclear power plant operation area, the first maintenance advice information, and the second maintenance advice information, the maintenance instruction generation server can also generate a maintenance guidance video. The maintenance guidance video can show the disassembly process of the mechanical structure of a certain nuclear power equipment, facilitating maintenance personnel to understand the complex equipment structure, or it can show the specific maintenance steps of a certain equipment, or inform the maintenance personnel how to avoid potential safety hazards on site. The maintenance guidance video brings convenience to the maintenance personnel in the nuclear power plant operation area and improves the maintenance efficiency.

[0091] In the embodiments of the present application, the maintenance instruction generation server can store the generated maintenance guidance video and send the maintenance guidance video to the collaborative maintenance terminal. The wearable maintenance guidance glasses can receive the maintenance guidance video sent by the maintenance instruction generation server through the collaborative maintenance terminal and play the maintenance guidance video on the display screen of the glasses.

[0092] In addition, the wearable maintenance guidance glasses can combine augmented reality technology to directly superimpose information such as maintenance steps, part names, serial numbers, and assembly paths on the equipment in the nuclear power plant operation area. Maintenance personnel do not need to frequently consult manuals or videos, and all necessary guidance information is directly displayed within their field of vision. Maintenance personnel can add marks or annotations in the augmented reality interface, such as marking the parts that have been inspected or need to be replaced. These information can be saved for subsequent reference or shared with other team members, thus providing more valuable data for mining for nuclear power enterprises.

[0093] In some embodiments, the wearable maintenance guidance glasses are further configured to collect the on-site pictures of the nuclear power plant operation, and generate an operation guidance video based on the on-site pictures and the maintenance guidance video, and display the operation guidance video.

[0094] Specifically, after obtaining the maintenance guidance video sent by the maintenance instruction generation server, the wearable maintenance guidance glasses can generate an operation guidance video according to the on-site pictures of the nuclear power plant operation area and the maintenance guidance video. The operation guidance video is used to guide maintenance personnel to find the equipment that needs to be adjusted in an operation area with complex paths and narrow spaces.

[0095] For example, the pressure value displayed by the containment of a nuclear reactor is lower than the normal indicator. At this time, the maintenance guidance video will inform the maintenance personnel to adjust the valve for the pressure of the nuclear reactor containment to restore the pressure value to normal. The wearable maintenance guidance glasses can generate a route guide based on the location of the maintenance personnel and the specific location of the valve, so as to guide the maintenance personnel to quickly find the valve and make adjustments.

[0096] The wearable maintenance guidance glasses provided by the embodiments of the present application can provide path guidance for maintenance personnel in the nuclear power plant operation area with complex routes, ensuring that the maintenance personnel can quickly find the equipment that needs to be adjusted and maintained, and improving the maintenance efficiency.

[0097] In some embodiments, the system further includes a storage server, which is used to store the maintenance data of the nuclear power plant operation area. Specifically, the storage server can also be used to provide different functional services, such as real-time calls and remote videos, etc. The storage server can include the built-in server or built-in service platform of the nuclear power plant, and can also include third-party services. Among them, the built-in server can include a unified process platform, an authentication center platform, a user behavior analysis platform, and a unified authorization management platform. The third-party services can include a remote collaboration service server, a streaming media server, a real-time communication server, a whiteboard server, and a Real Time Messaging Protocol (RTMP) server.

[0098] The maintenance instruction generation server can obtain the services provided by the built-in server, or obtain the corresponding functional services from the third-party server through network protocols. All servers and terminals in the intranet area are connected through network protocols and corresponding network interfaces to achieve the transmission of data streams. In addition, when providing corresponding functions, the third-party server can also access the corresponding databases and functions through specific network interfaces and network protocols, such as communicating between the server and the client through the real-time messaging protocol. The database can store the maintenance data of the nuclear power plant operation area, and the database can include databases such as MySQL (My Structured Query Language, MySQL) and Remote Dictionary Server (Redis).

[0099] The storage server provided by the embodiments of the present application can not only provide corresponding services for the nuclear power plant staff, but also store the maintenance data of the nuclear power plant operation area, and can also store the maintenance guidance video and the maintenance video of on-site maintenance personnel. In addition, it can also save the authorization information, login information, user information, etc. of authorized personnel, which is convenient for the nuclear power plant staff to use the maintenance system.

[0100] In some embodiments, please refer to Figure 5, Figure 5 is a schematic diagram of the system storage design plan provided by the embodiments of the present application. The data sources of the maintenance system mainly include maintenance data acquisition devices, collaborative maintenance terminals, and business service systems. These data can be divided into the following types of system data: business data, image files, audio files, and video files. The business data passes through the back-end business system. The business system performs security verification on the business data and performs necessary processing (the processing of data mainly includes the extraction of data fields, the association of data with personnel information, the association of remote collaboration data with file information, etc.). After that, the business data that needs to be persisted is saved to the MySQL database or Redis.

[0101] For image files, audio files, and video files, the business service system generates corresponding files for different types of data, calls the file upload interface of the corresponding file cloud storage service, and uploads the image files, audio files, and video files to the file cloud storage service platform. At this time, after receiving the files, the file cloud storage service platform can generate corresponding file information such as file names, storage locations, and upload times for the files. The file cloud storage service platform calls the business service system interface and saves the received files and the corresponding file information to the MySQL database. The embodiments of the present application perform corresponding storage planning on different types of maintenance data and business data, and store the maintenance data and business data in the corresponding areas, so that the nuclear power plant staff can obtain the corresponding stored data at any time, providing rich maintenance knowledge and experience for the nuclear power plant staff.

[0102] Next, the nuclear power plant operation and maintenance method provided by the embodiments of the present application will be described through the following embodiments. In some embodiments, please refer to Figure 6 , Figure 6 is a flowchart of the nuclear power plant operation and maintenance method provided by the embodiments of the present application. The nuclear power plant operation and maintenance method provided by the embodiments of the present application includes but is not limited to the following steps 601 to step 605:

[0103] Step 601, the collaborative maintenance terminal obtains the maintenance data of the nuclear power plant operation area and sends the maintenance data to the first proxy server based on the internal wireless network in the nuclear power plant operation area;

[0104] Step 602, the first proxy server forwards the maintenance data to the internal network terminal and the second proxy server in the nuclear power plant internal network area;

[0105] Step 603, the second proxy server forwards the maintenance data sent by the first proxy server to the external network terminal;

[0106] Step 604, the external network terminal receives the maintenance data sent by the second proxy server, and sends the first maintenance recommendation information determined based on the maintenance data to the collaborative maintenance terminal via the second proxy server;

[0107] Step 605, the internal network terminal receives the maintenance data sent by the first proxy server, and sends the second maintenance recommendation information determined based on the maintenance data to the collaborative maintenance terminal via the first proxy server.

[0108] In the embodiments of the present application, according to different types of requests initiated by users, they are divided into network requests, service data acquisition requests, data push requests, audio and video requests, etc.

[0109] Network requests mainly include information such as authorizations and processes involved in the current system, as well as preconditions such as the online status of the system and whether the user has logged in. If the preconditions are not met, relevant services such as the user's authorization and resource permissions will be requested first. If all preconditions are met, the service will be automatically requested. When the user initiates a network request, it is forwarded to the maintenance instruction generation server through the first proxy server or the second proxy server. The maintenance instruction generation server obtains the required data (which may include data such as the user's device used, collaboration initiated, file generated, and system configuration modified) from the corresponding server according to the status of the maintenance system and the Uniform Resource Locator (URL) requested by the user, and returns it to the maintenance instruction generation server. After verifying and processing the obtained data, the maintenance instruction generation server transmits it to the user terminal.

[0110] The user can also initiate a service data request. The service data can include maintenance personnel data, picture information, video information, equipment information, etc. For example, the collaborative maintenance terminal initiates a remote collaboration request. The maintenance instruction generation server creates a collaboration room and simultaneously requests the streaming media service in the streaming media server. The streaming media server obtains the audio and video stream of the collaborative maintenance terminal device and pushes the audio and video stream into the collaboration room. At this time, the maintenance personnel and technical guidance personnel join the collaboration room. After the streaming media server detects the user's joining, it pushes the audio and video stream in the collaboration room to the front page of the meeting personnel for display.

[0111] In some embodiments, the methods for the collaborative maintenance terminal to obtain the maintenance data of the nuclear power plant operation area include but are not limited to:

[0112] The wearable health data acquisition device collects the physical characteristic data of the maintenance personnel and sends the physical characteristic data to the collaborative maintenance terminal;

[0113] The multimedia data acquisition device collects the multimedia data of the nuclear power plant operation area and sends the multimedia data to the collaborative maintenance terminal.

[0114] Specifically, the connection methods between the wearable health data collection device and the collaborative maintenance terminal and between the multimedia data collection device and the collaborative maintenance terminal have been introduced in the foregoing embodiments and will not be elaborated here. The collected body feature data and the multimedia data of the nuclear power plant operation area are transmitted to the collaborative terminal device, which can send the above-mentioned maintenance data to the first proxy server and then to the intranet terminal or the extranet terminal through the first proxy server, so that the technical guidance personnel can obtain the maintenance data of the nuclear power plant operation area and give timely guidance. The first proxy server can also forward the maintenance data to the storage server and the database for storage.

[0115] In some embodiments, the nuclear power plant operation and maintenance method provided by the present application further includes but is not limited to the following steps:

[0116] The collaborative maintenance terminal obtains the maintenance data of the nuclear power plant operation area and sends the maintenance data to the storage server for storage through the first proxy server;

[0117] The storage server sends the maintenance data to the intranet terminal or the extranet terminal.

[0118] Specifically, the collaborative maintenance terminal obtains the maintenance data of the nuclear power plant operation area and transmits the maintenance data to the first proxy server through the internal wireless network of the nuclear power plant operation area. The first proxy server receives the maintenance data of the nuclear power plant operation area sent by the collaborative maintenance terminal, verifies the data security of the maintenance data, and sends the maintenance data to the storage server after passing the verification.

[0119] Further, according to the requests initiated by the intranet terminal or the extranet terminal, the maintenance instruction generation server obtains the corresponding data acquisition paths according to the types of different requests, searches for the corresponding storage server through these paths, and forwards the requests to the storage server. The storage server forwards the corresponding data to the intranet terminal, the extranet terminal or the collaborative maintenance terminal according to the received requests.

[0120] In some embodiments, the nuclear power plant operation and maintenance method provided by the present application further includes but is not limited to the following steps:

[0121] The maintenance instruction generation server generates a maintenance instruction according to the body feature data, the multimedia data of the nuclear power plant operation area, the first maintenance suggestion information, and the second maintenance suggestion information, and sends the maintenance instruction to the collaborative maintenance terminal.

[0122] Specifically, the generation method of the maintenance instruction has been introduced in the foregoing embodiments and will not be elaborated here. When the maintenance instruction generation server generates a maintenance instruction, it can store the maintenance instruction and the corresponding inspection data in a storage server or a database so that the staff can learn relevant inspection knowledge at any time and improve the proficiency of the inspection work. The maintenance instruction generation server can also send the maintenance instruction to

[0123] In another embodiment, the maintenance instruction generation server is further configured to generate a maintenance guidance video based on the physical characteristic data, the multimedia data of the nuclear power plant operation area, the first maintenance suggestion information, and the second maintenance suggestion information, and store the maintenance guidance video in the storage server. The maintenance guidance video can be sent to the collaborative inspection terminal through the storage server or the maintenance instruction generation server, and then sent to the smart glasses by the collaborative inspection terminal. The smart glasses play the maintenance guidance video and guide the inspection work of the inspectors.

[0124] The embodiments described in the embodiments of the present application are for more clearly illustrating the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided by the embodiments of the present application. Those skilled in the art know that with the evolution of technology and the emergence of new application scenarios, the technical solutions provided by the embodiments of the present application are equally applicable to similar technical problems.

[0125] Those skilled in the art can understand that the technical solutions shown in the figures do not constitute a limitation on the embodiments of the present application, and may include more or fewer steps than those shown in the figures, or combine certain steps, or different steps.

[0126] The system embodiments and method embodiments described above are merely illustrative. The units described as separate components may or may not be physically separated, that is, they may be located in one place, or may be distributed to multiple network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0127] Those of ordinary skill in the art can understand that all or some of the steps in the methods disclosed above, and the functional modules / units in the systems and devices can be implemented as software, firmware, hardware and their appropriate combinations.

[0128] In the description of this application and the above-mentioned drawings, terms such as "first", "second", "third", "fourth", etc. (if any) are used to distinguish similar objects and do not necessarily describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances so that the embodiments of this application described here can be implemented in an order different from those illustrated or described here. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0129] It should be understood that in this application, "at least one (item)" means one or more, and "a plurality" means two or more. "And / or" is used to describe the association relationship of associated objects and indicates that there can be three relationships. For example, "A and / or B" can mean: only A exists, only B exists, and both A and B exist at the same time. Among them, A and B can be singular or plural. The character " / " generally means that the associated objects before and after are in an "or" relationship. "At least one (one) of the following" or its similar expression refers to any combination of these items, including any combination of single items (ones) or plural items (ones). For example, at least one (one) of a, b or c can mean: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, c can be single or multiple.

[0130] In several embodiments provided in this 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 illustrative. For example, the above-mentioned division of units is only a logical function division. In actual implementation, there can be other division methods. For example, 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 displayed or discussed coupling or direct coupling or communication connection to each other can be through some interfaces, and the indirect coupling or communication connection of devices or units can be in electrical, mechanical or other forms.

[0131] The units described above as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they can be located in one place or distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0132] In addition, in each embodiment of the present application, the functional units can be integrated into one processing unit, or each unit can exist physically alone, or two or more units can be integrated into one unit. The above-mentioned integrated unit can be implemented in the form of hardware or in the form of a software functional unit.

[0133] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on such an understanding, the technical solution of the present application, in essence, or the part that contributes to the prior art, or all or 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 and includes multiple instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods in each embodiment of the present application. The foregoing storage medium includes: various media such as USB flash drives, mobile hard disks, read-only memories (ROM), random access memories (RAM), magnetic disks, or optical discs that can store programs.

[0134] The preferred embodiments of the embodiments of the present application have been described above with reference to the accompanying drawings, and thus do not limit the scope of rights of the embodiments of the present application. Any modifications, equivalent replacements, and improvements made by those skilled in the art without departing from the scope and essence of the embodiments of the present application shall be within the scope of rights of the embodiments of the present application.

Claims

1. A nuclear power plant operation maintenance system, characterized in that: The maintenance system comprises: A collaborative maintenance terminal, used for acquiring maintenance data of the nuclear power plant operation area, and sending the maintenance data to the first proxy server based on the internal wireless network of the nuclear power plant operation area; A first proxy server disposed in the intranet area of ​​the nuclear power plant, used for forwarding the maintenance data to the intranet terminal in the intranet area of ​​the nuclear power plant and a second proxy server disposed in the network isolation area; A second proxy server disposed in a network isolation area, used for forwarding the maintenance data sent by the first proxy server to an external network terminal, wherein the network isolation area is an area isolating the intranet area of ​​the nuclear power plant from the Internet; an external network terminal, configured to receive the maintenance data sent by the second proxy server, and to send first maintenance suggestion information determined based on the maintenance data to the collaborative maintenance terminal via the second proxy server; The intranet terminal is used to receive the maintenance data sent by the first proxy server, and send second maintenance suggestion information determined based on the maintenance data to the collaborative maintenance terminal via the first proxy server.

2. The maintenance system according to claim 1, characterized in that: The system further comprises: a maintenance data acquisition device, wherein the maintenance data acquisition device comprises: Wearable health data collection equipment, used to collect physical characteristic data of maintenance personnel; Multimedia data acquisition equipment is used to collect multimedia data from the operating area of ​​a nuclear power plant.

3. The maintenance system according to claim 1, characterized in that: The system also includes: a maintenance instruction generation server, which is used to generate maintenance instructions based on physical feature data, multimedia data of the nuclear power plant operating area, the first maintenance suggestion information, and the second maintenance suggestion information, and send the maintenance instructions to the collaborative maintenance terminal.

4. The maintenance system according to claim 3, characterized in that: The maintenance instruction generating server is further used to generate a maintenance instruction video according to the physical feature data, the multimedia data of the nuclear power plant operation area, the first maintenance suggestion information, and the second maintenance suggestion information; The system further comprises wearable maintenance instruction glasses, wherein the wearable maintenance instruction glasses are used to receive the maintenance instruction video sent by the maintenance instruction generating server and play the maintenance instruction video.

5. The maintenance system according to claim 4, characterized in that: The wearable maintenance guidance glasses are also used to collect on-site images of nuclear power plant operations, generate operation guidance videos based on the on-site images and maintenance guidance videos, and display the operation guidance videos.

6. The maintenance system according to claim 1, characterized in that: The system also includes a storage server, which is used to store the maintenance data of the nuclear power plant operating area.

7. A nuclear power plant operation maintenance method, characterized in that: Applicable to the nuclear power plant operation maintenance system according to any one of claims 1 to 6, the method comprising: The collaborative maintenance terminal obtains maintenance data of the nuclear power plant operation area, and sends the maintenance data to the first proxy server based on the internal wireless network of the nuclear power plant operation area; The first proxy server forwards the maintenance data to the intranet terminal in the intranet area of ​​the nuclear power plant and the second proxy server; The second proxy server forwards the maintenance data sent by the first proxy server to the external network terminal; The external network terminal receives the maintenance data sent by the second proxy server, and sends the first maintenance suggestion information determined based on the maintenance data to the collaborative maintenance terminal via the second proxy server; The intranet terminal receives the maintenance data sent by the first proxy server, and sends second maintenance suggestion information determined based on the maintenance data to the collaborative maintenance terminal via the first proxy server.

8. The maintenance method according to claim 7, characterized in that: The method for the collaborative maintenance terminal to obtain maintenance data of the nuclear power plant operating area includes: The wearable health data collection device collects the physical characteristic data of the maintenance personnel and sends the physical characteristic data to the collaborative maintenance terminal; The multimedia data acquisition device acquires multimedia data of the nuclear power plant operation area and sends the multimedia data to the collaborative maintenance terminal.

9. The maintenance method according to claim 8, characterized in that: The method further comprises: The collaborative maintenance terminal acquires maintenance data of the nuclear power plant operation area, and sends the maintenance data to the storage server for storage through the first proxy server; The storage server sends the maintenance data to the intranet terminal or the extranet terminal.

10. The maintenance method according to claim 7, characterized in that: The method further comprises: The maintenance instruction generating server generates a maintenance instruction according to the body feature data, the multimedia data of the nuclear power plant operation area, the first maintenance suggestion information, and the second maintenance suggestion information, and sends the maintenance instruction to the collaborative maintenance terminal.

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