Full-station video nano-management method for high-voltage direct-current converter station

Abstract

The invention discloses a high-voltage direct-current converter station whole-station video nano-management method, and relates to the technical field of intelligent operation and maintenance of power systems. According to the method, a video management server is locally deployed in a converter station, so that unified access, management and service provision of multi-source heterogeneous video equipment are realized. The system supports standard and private protocol adaptation, provides a standardized northbound interface, and realizes acquisition, transmission, storage, calling and security control of video data. The method solves the problems of discretization, non-uniform interfaces and high operation and maintenance cost of a converter station video system, improves the integration, safety and expandability of the video system, and is suitable for intelligent operation and maintenance management of the high-voltage direct-current converter station.

Description

Technical Field

[0001] This invention relates to the field of intelligent operation and maintenance technology for power systems, specifically to a method for integrating video surveillance into the entire high-voltage DC converter station. Background Technology

[0002] Converter stations, as core hubs in power systems for AC / DC power conversion, are crucial for ensuring grid security. These stations contain numerous devices and operate in complex environments, involving high voltage and strong electromagnetic fields; equipment failures can lead to widespread power outages and other serious consequences. With the advancement of intelligent power system construction, video surveillance technology has become an important tool for the operation and maintenance management of converter stations.

[0003] According to the State Grid Corporation of China's Notice on Launching a Special Action to Improve the Reliability of Power Grid Operation and Control Systems (State Grid Dispatch

[2024] No. 341), the action plan for improving the reliability of communication systems and network security includes strict requirements for industrial video. Specifically, 21 verification tasks are required to check the "four-pronged" configuration of industrial video systems. This includes verifying whether 500 kV and above converter stations have achieved a "dual power supply, dual equipment, dual routing, and dual application" configuration, ensuring the continuous and stable operation of the industrial video system under various complex conditions, providing reliable video data support for converter station equipment inspections and security monitoring. Simultaneously, the verification of "four-pronged" switching verification for industrial video services is necessary. Only through rigorous verification can it be guaranteed that in actual operation, when the primary power supply, equipment, routing, or application fails, the backup system can quickly and seamlessly switch over, maintaining the continuity of video monitoring. In addition, it is necessary to confirm whether an emergency drill plan and drill scheme for industrial video failures have been developed. Through regular drills, the emergency response capabilities of operation and maintenance personnel in the face of industrial video failures can be improved, ensuring that video monitoring, a key operation and maintenance tool, will not fail in the event of an emergency at the converter station.

[0004] High-definition cameras, intelligent inspection robots, drones, and other video acquisition devices are widely used in scenarios such as equipment status monitoring, security, and personnel operation supervision. These devices can capture important information such as equipment appearance defects and abnormal temperatures in real time, providing intuitive data support for operation and maintenance decisions. In the field of digital security, converter stations need to use cameras to monitor perimeter intrusions, personnel violations, and other security incidents in real time. In emergency management scenarios, when emergencies such as fires or equipment failures occur, it is necessary to quickly retrieve relevant area videos to provide a basis for emergency decision-making. In the one-click sequential control operation, cameras and control systems work closely together to provide real-time feedback on key information such as the opening and closing status of equipment and the position of disconnectors, effectively ensuring the safety and controllability of the operation process. However, the current construction of video systems within converter stations lacks unified planning, exhibiting a fragmented nature. Video equipment introduced at different stages comes from multiple manufacturers, with significant differences in communication protocols, data formats, and management platforms. These fragmented video systems operate independently, forming "information silos" and hindering efficient integration and collaborative application of video resources. Simultaneously, with the increasing demand for intelligent operation and maintenance of converter stations, the requirements for centralized management, unified access, and in-depth analysis of video data are becoming increasingly stringent. Traditional fragmented video management models are no longer sufficient to meet practical needs, necessitating a method to unify the management of the station's fragmented video systems to improve the overall efficiency of the converter station's video surveillance system. Summary of the Invention

[0005] To address the aforementioned problems, this invention provides a method for integrating video feeds into the entire high-voltage direct current converter station. This invention is achieved through the following technical solutions.

[0006] A method for integrating video feeds into the entire high-voltage direct current converter station includes the following steps: S1. Hardware Deployment: Deploy a video management server locally at the converter station and configure the hardware and software systems; S2. Software Integration: Through protocol adaptation and device registration, the multi-source heterogeneous video devices within the station are uniformly connected; S3, Service Openness: Provides standardized functional interfaces to support video data acquisition, device control, alarm push and status monitoring; S4. Process Implementation: Implement video data acquisition, transmission, storage, management, and service response; S5. Security Hardening: Ensure system security through user access control, data encryption, and security auditing.

[0007] As a further embodiment of the present invention, the video management server in step S1 is based on an ARM architecture processor, which has multiple cores, high clock speed, large memory, large capacity storage and high bandwidth I / O interface, and supports at least 1500 video access channels.

[0008] As a further aspect of the present invention, the protocol adaptation in step S2 includes support for ONVIF, GB / T28181, and RTSP standard protocols, and supports private protocol conversion access through a development interface.

[0009] As a further aspect of the present invention, the device registration in step S2 includes automatic discovery or manual addition, collecting basic device information and assigning a unique identifier, and supporting parameter configuration.

[0010] As a further aspect of the present invention, the functional interfaces in step S3 include a video data acquisition interface, a device control interface, an alarm interface, and a status monitoring interface, using the HTTP / TCP / FTPS protocol and with data in JSON or XML format.

[0011] As a further embodiment of the present invention, the video data acquisition and transmission in step S4 adopts H.264 or H.265 encoding compression and supports the breakpoint resume mechanism.

[0012] As a further aspect of the present invention, the video data storage in step S4 supports configuring storage strategies according to device type, time period, and importance, and has indexing, retrieval, deletion, and backup functions.

[0013] As a further aspect of the present invention, the status monitoring in step S3 includes detecting the camera status through a screenshot interface, detecting the NVR status through a login interface, and supporting one-click disconnection and reconnection functions.

[0014] As a further aspect of the present invention, the system security in step S5 includes user access control, SSL / TLS encrypted transmission, AES encrypted storage, operation auditing, and real-time monitoring.

[0015] As a further aspect of the present invention, the method also includes system interface docking with digital station platform, robot, drone, PMS3.0 system, sample management platform, 3D base, and algorithm engine unit.

[0016] The beneficial effects of this invention are as follows: Achieving high integration and unified management greatly improves operational efficiency. This invention completely solves the problems of "discretion" and "information silos" in video systems caused by multiple manufacturers and multiple phases of construction within converter stations by building a unified video management platform. It unifies the access, centralized management and integrated operation and maintenance of all heterogeneous video resources, supports batch adjustment of camera parameters, etc., fundamentally changes the previous chaotic situation of decentralized management, significantly reduces the manpower and time costs of operation and maintenance, and makes operation and maintenance work more convenient and efficient.

[0017] Provide standardized interfaces to break down technical barriers and promote system interconnection. This invention provides a standardized and regulated set of functional interfaces (such as HTTP, TCP, and FTPS), defining clear data formats and communication protocols. This effectively breaks down the technical barriers between systems from different manufacturers, allowing other business systems (such as digital station platforms and PMS) to access all video functions simply by interfacing with the management platform, without needing to customize development for different underlying devices. This greatly simplifies the system integration process, shortening the integration cycle from months to weeks, and significantly improving the system's scalability and ease of introducing new technologies in the future.

[0018] Significantly reduce the total lifecycle cost of the system During the integration phase, this method simplifies the complexity of interfacing with multiple systems, requiring only interface debugging with a unified management platform, avoiding the high costs of interfacing with each manufacturer's equipment individually. During the maintenance phase, the unified management platform makes fault location and troubleshooting more centralized and efficient, eliminating the need to switch between multiple independent systems, significantly shortening troubleshooting time and reducing long-term maintenance costs. Simultaneously, standardized interfaces reduce maintenance risks arising from technological changes or product upgrades by a single manufacturer.

[0019] Build a comprehensive security system to enhance data security and controllability. This invention unifies the video data access point and constructs a comprehensive, multi-layered security protection system through strict user permission management, encrypted data transmission (SSL / TLS) and encrypted storage (AES), as well as a comprehensive security audit and monitoring mechanism. It can achieve precise control and full traceability of data access and usage behavior, effectively prevent unauthorized access and data leakage, and better meet the stringent data security requirements of converter stations as critical infrastructure.

[0020] Innovative intelligent status monitoring directly improves operation and maintenance efficiency and reliability. This invention incorporates an intelligent NVR and camera status automatic monitoring function. By actively calling the interface to detect disconnections, it replaces the traditional method of relying on manual daily checks. This function directly responds to the State Grid's document

[2024] No. 341 regarding the assessment requirements for video online rate. It can automatically detect signal loss problems and issue alarms, greatly reducing the repetitive workload of maintenance personnel and improving the automation level of maintenance work and the reliability of converter station operation.

[0021] In summary, this invention not only solves the core pain points in current converter station video management, but also achieves comprehensive improvement in five dimensions: integration, openness, economy, security, and intelligence, laying a solid technical foundation for the intelligent operation and maintenance of converter stations. Attached Figure Description

[0022] To more clearly illustrate the technical solution of the present invention, the accompanying drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a diagram of the architecture of the full-site video management system described in this invention; Figure 2 This is a flowchart of the converter station full-site video management method described in this invention; Figure 3 This is a schematic diagram summarizing the core architecture and configuration of the system described in this invention; Figure 4 This is a schematic diagram summarizing the standardized functional interfaces described in this invention; Figure 5 This diagram summarizes the advantages of the present invention compared to traditional solutions. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] like Figure 1-5 As shown, the present invention has the following specific embodiments.

[0026] Example This embodiment provides a complete implementation scheme for a method of incorporating video surveillance throughout a high-voltage direct current converter station. The process is as follows: Figure 2 As shown, the system architecture is as follows: Figure 1 As shown, the main implementation process includes the following:

[0027] 1. System Architecture Setup First, the hardware is deployed and the software environment is configured locally at the converter station.

[0028] (1) Hardware deployment A 4U rack-mount video management server with large storage capacity is deployed in the standard rack of the converter station's computer room. This server is developed based on a custom heterogeneous processor from the Zhengzhou 1 series high-performance ARM architecture. Its specific technical specifications are as follows: Figure 3 As shown: The server is connected to the dedicated VLAN port of the core switch in the station via a network cable, building a stable and high-speed network transmission channel to ensure real-time access and storage of video data for the entire station.

[0029] (2) Software environment configuration A dedicated video management software system and database management system are installed on the server. This software system uses multiple communication methods, including TCP, FTPS, and B-interface, to complete the access and data aggregation of various subsystems, and mainly achieves the following functions: Task customization: Using synchronous converter intelligent inspection, track robots, and valve hall infrared inspection points as inspection content, create inspection plans of various types, including routine inspections, lights-out inspections, special inspections, dedicated inspections, and custom inspections. Supports modification of inspection plans, immediate execution, scheduled execution, and execution by cycle (monthly, weekly, daily, hourly, or fixed intervals), and supports custom plan names.

[0030] Task Display: Supports a combination of annual, monthly, and calendar displays, showing task names, completion status, and position, with different colors used to distinguish statuses. Supports searching the historical task list by time period, task name, status, and other combined criteria.

[0031] Silent monitoring: Supports silent monitoring of key equipment and main personnel entrances and exits within the station at a set frequency during non-patrol missions.

[0032] Historical Inspection Reports: Supports automatic generation and display of inspection reports, supports exporting reports in file format, and batch exporting task images in compressed package format.

[0033] Real-time monitoring: Displays device resource information in a tree-like list, supports filtering devices by online / offline status, supports viewing camera and robot footage, and supports various split-screen displays such as 1 / 4 / 9 / 16 / full screen and PTZ control.

[0034] Video playback: Supports querying and downloading historical recordings by time and device, and supports fast forward, slow motion, drag, pause, and screenshot operations during playback.

[0035] Inspection Overview: Statistics on station inspection tasks, robot applications, video equipment, inspection data, alarm data, defect data, etc. are compiled and presented in a multi-dimensional visualization using graphics and charts.

[0036] Drone / Robot Inspection: Accessed via page integration, enabling real-time video display, equipment control, task assignment, and result feedback.

[0037] The database is used to store critical data such as device information, user permissions, and video metadata, ensuring efficient data management and rapid retrieval.

[0038] 2. Access to discrete video systems Device Protocol Adaptation: For video devices from different manufacturers (such as Hikvision and Dahua) and of different types (fixed cameras, inspection robots, drones, etc.) within the station, the video management system utilizes its built-in standard protocol parsing modules for ONVIF, GB / T 28181, and RTSP for access. For devices using proprietary protocols, a custom protocol conversion program is developed using the system's provided protocol development interface to convert proprietary protocol data into a standard format before connecting it to the system, achieving compatible access for all video devices across the station.

[0039] Device Registration and Configuration: After video devices are connected to the network, they are registered through the system's automatic discovery or manual addition functions. The system collects basic information such as device name, model, IP address, and device ID, and assigns a unique identifier to each device. After registration, maintenance personnel can configure detailed parameters of the devices in the system management interface, including video resolution, frame rate, encoding format, recording storage policy, alarm linkage rules, etc.

[0040] 3. Video management function interface design and integration The video management system provides standardized functional interfaces. All interfaces adhere to a unified specification, use JSON or XML format for data transmission, and provide detailed interface documentation. Key interfaces include: Video data acquisition interface (HTTP protocol): Provides services such as device access management, real-time playback, camera preset positions, PTZ control, historical recording query and download, recording playback control, device image capture, and infrared image capture.

[0041] Equipment control interface: Allows external systems to remotely control connected video equipment, such as pan / tilt rotation, focus adjustment, and starting / stopping inspection robot tasks.

[0042] Alarm Interface (HTTP Push): When the video device triggers a preset alarm condition (such as device malfunction), the system pushes the alarm information to the external system in real time through this interface.

[0043] NV and Camera Status Monitoring Interface (HTTP Protocol): Provides offline alarm display, online / offline status, IP, port, and other information for the entire site's NVR and cameras; provides an NVR status list and a list of camera connection interruption details; supports one-click reconnection and one-click disconnection for cameras. Interface with the digital station platform (HTTP protocol): Synchronize equipment ledgers from the digital station system and send data such as meter readings and infrared temperature measurements to the digital station platform.

[0044] Interface with robot and drone inspection modules: Equipment models and inspection point information are synchronized via offline files or online interfaces (TCP protocol); control commands and status data are transmitted via TCP protocol; visible light photos, infrared spectra and other files are transmitted via FTPS protocol.

[0045] Interface with basic video surveillance applications / advanced air-ground collaborative surveillance applications: Commands such as task management, equipment control, and point-to-point synchronization use the TCP protocol; file transfer uses the FTPS protocol.

[0046] Interface with PMS3.0 system (HTTP protocol): Transmit inspection equipment model, inspection point model, inspection results, and registered defects via integrated data network; query defect elimination information and switching operation tickets; and receive inspection task data.

[0047] Interface with the sample management platform: Sample data is uploaded using the HTTP protocol, and file transfer is performed using the FTPS protocol.

[0048] Interface with 3D base: Uses HTTP or Post Message protocol to transmit information such as alarms, defects, waypoints, and smart terminal locations.

[0049] Interface with the algorithm engine unit: Image analysis and other commands use the HTTP protocol, and file transfer uses the FTPS protocol.

[0050] 4. Video Function Implementation Process Video data acquisition and transmission: On-site video equipment acquires video data according to configured parameters and transmits the video stream to the video management server via the on-site network. During transmission, H.264 or H.265 encoding technology is used to compress the data to reduce network bandwidth consumption. The system supports breakpoint resumption and retransmission mechanisms to ensure the reliability of data transmission.

[0051] Video data storage and management: After receiving data, the video management server stores the video data to the local disk array according to preset storage strategies (such as by device type, time period, and importance). The system provides comprehensive video data management functions, including indexing, retrieval, deletion, and backup.

[0052] Video function call and response: External systems (such as digital station platforms) initiate requests (such as obtaining real-time video) by calling the standard interfaces provided by the video management system. The system first verifies the validity of the request and checks permissions. After successful verification, it extracts data from the video source or storage device according to the request type and returns it to the requester in the interface format.

[0053] NVR and Camera Status Monitoring: The system periodically calls the screenshot interface to retrieve video screenshots from the cameras. If the image size is not 0 bytes, it is considered normal; if it is 0 bytes or the retrieval fails, it is considered disconnected or faulty, and the abnormal status is recorded. The system determines the online status of the NVR by whether the login interface is successfully called, and returns detailed status information in the response.

[0054] One-click disconnection and reconnection of camera footage: The one-click disconnection function sends a disconnection command to the camera via an API call and marks its status as "disconnected". The one-click reconnection function re-initiates a connection request when the camera's status is "disconnected". If successful, the status is updated to "connected" and the video stream is checked; if it fails, the reason is recorded (such as network timeout or authentication failure).

[0055] 5. System security guarantee User Access Management: The system establishes a comprehensive user access management system, assigning different permissions such as video data access, device control, and API call permissions to different users or systems through a role-based access control mechanism. API calls require valid authentication information, which the system uses for access control.

[0056] Encrypted data transmission: During video data transmission and interface communication, SSL / TLS encryption protocols are used to encrypt the data. Video data stored on the server is encrypted using the AES encryption algorithm to prevent theft or tampering.

[0057] Security Audit and Monitoring: The system records and audits all video data access, interface calls, and device operations in real time, generating audit logs for traceability. Simultaneously, it monitors network traffic and server resource usage in real time, promptly alerting the system to abnormal traffic or unauthorized access, and implementing protective measures such as blocking IP addresses and limiting call frequency.

[0058] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention.

Claims

1. A method for incorporating video surveillance throughout a high-voltage direct current converter station, characterized in that, Includes the following steps: S1. Hardware Deployment: Deploy a video management server locally at the converter station and configure the hardware and software systems; S2. Software Integration: Through protocol adaptation and device registration, the multi-source heterogeneous video devices within the station are uniformly connected; S3, Service Openness: Provides standardized functional interfaces to support video data acquisition, device control, alarm push and status monitoring; S4. Process Implementation: Implement video data acquisition, transmission, storage, management, and service response; S5. Security Hardening: Ensure system security through user access control, data encryption, and security auditing.

2. The method for incorporating video feeds into a high-voltage direct current converter station according to claim 1, characterized in that: The video management server in step S1 is based on an ARM architecture processor and features multi-core, high clock speed, large memory, large capacity storage and high bandwidth I / O interface, supporting at least 1500 video access channels.

3. The method for incorporating video feeds into a high-voltage direct current converter station according to claim 1, characterized in that: The protocol adaptation in step S2 includes support for ONVIF, GB / T 28181, and RTSP standard protocols, and supports private protocol conversion access through the development interface.

4. The method for incorporating video feeds into a high-voltage direct current converter station according to claim 1, characterized in that: The device registration in step S2 includes automatic discovery or manual addition, collecting basic device information and assigning a unique identifier, and supporting parameter configuration.

5. The method for incorporating video feeds into a high-voltage direct current converter station according to claim 1, characterized in that: The functional interfaces in step S3 include a video data acquisition interface, a device control interface, an alarm interface, and a status monitoring interface, using the HTTP / TCP / FTPS protocol and JSON or XML data format.

6. The method for incorporating video feeds into a high-voltage direct current converter station according to claim 1, characterized in that: The video data acquisition and transmission in step S4 uses H.264 or H.265 encoding compression and supports a breakpoint resume mechanism.

7. A method for incorporating video feeds into a high-voltage direct current converter station according to claim 1, characterized in that: The video data storage in step S4 supports configuring storage strategies according to device type, time period, and importance, and has indexing, retrieval, deletion, and backup functions.

8. The method for incorporating video feeds into a high-voltage direct current converter station according to claim 1, characterized in that: The status monitoring in step S3 includes detecting the camera status through the screenshot interface, detecting the NVR status through the login interface, and supporting one-click disconnection and reconnection functions.

9. A method for incorporating video feeds into a high-voltage direct current converter station according to claim 1, characterized in that: The system security in step S5 includes user access control, SSL / TLS encrypted transmission, AES encrypted storage, operation auditing, and real-time monitoring.

10. A method for incorporating video feeds into a high-voltage direct current converter station according to claim 1, characterized in that: The method also includes system interface docking with digital station platforms, robots, drones, PMS3.0 systems, sample management platforms, 3D bases, and algorithm engine units.

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