Remote consultation on engineering problems, intelligent monitoring of job sites, co-construction and sharing of database of process construction methods and new construction technologies, VR/AR wearable devices to fully perceive all elements of the construction site, dynamic monitoring of the entire process of equipment supervision, digital engineering management and control, and automatic completion settlement transfer Capital… State Grid DC Company takes improving the digital management level of infrastructure to promote the safe and economic operation of the power grid as a starting point, and adopts new technologies such as “big data, cloud computing, Internet of Things, mobile applications, artificial intelligence” to deepen research on the ubiquitous power Internet of Things Application in the planning and design of DC projects, equipment supervision, construction, acceptance and handover, etc., innovate the management methods and modes of DC project construction, and take the construction of “on-site construction centralized control platform for DC projects” as the starting point, “embedding” and attaching various Professional function modules, accelerate the deep integration of information technology and power grid infrastructure, start a new generation of power system construction journey, and promote the transformation of smart grid construction management from traditional to intelligent.
The integration of the energy revolution and the digital revolution has accelerated the transformation and transformation of the traditional power grid construction and management Model. hand, innovate derivative and incubate related functional modules, and promote the high-quality development of DC engineering.
“Centralized control platform for on-site construction of DC engineering” consolidates the foundation of intelligent engineering management
In September 2019, the construction of the ±500kV Beijing converter station under the Yanshan Mountains entered the construction sprint stage. The civil construction work was completed, the installation of electrical equipment was stepped up, and the measures to eliminate shortages were implemented one by one… Although various difficulties and emergency problems emerged one after another on the site , but Liu Baohong, head of the owner’s project department, works with ease. At that time, Liu Baohong was the project manager of the ±1100kV Zhundong-Wannan UHVDC transmission project Guquan converter station was about to be completed and put into operation. The whole process of promoting the application. “The platform not only makes on-site management much more convenient, but also provides information management tools to transform work from the traditional experience-based and evaluation-based to lean and precise. This double information management ‘invisible hand’ is exerting Visible big effect.” The change in the comparison before and after made him feel a lot.
In 2015, the Zhundong-Wannan ±1100 kV UHV DC transmission project started. Chen Li, the person in charge of the State Grid DC Company, said: “Innovative projects must be managed with innovative ideas. The construction of Jiquan Project must not only achieve breakthroughs in DC technology, but also go further in project management.” As the first ±800 thousand Facing another challenge, Chen Li, the project manager of the Fengxian Converter Station of the Xiangjiaba-Shanghai UHV DC Transmission Demonstration Project, proposed the idea of establishing a hierarchical video monitoring center and data center for the DC project. In 2017, the “Centralized Control Platform for On-site Construction of DC Projects” was completed, and it was first put into trial operation in the Zhundong-Wannan ±1100 kV UHV DC transmission project. The platform mainly covers four parts: video monitoring, remote consultation, on-site data monitoring, and knowledge management, covering three businesses of project management, technical support, and equipment supervision, two types of converter stations and lines, as well as direct construction management and technical supervision. Two modes.
State Grid DC Company seized the opportunity of the ubiquitous power Internet of Things construction, and further improved the platform’s data collection, analysis and application functions on the basis of on-site monitoring, and implemented the Zhangbeirou Direct Power Grid Project Beijing, Fengning Converter Station and “New Five”. Direct” project promotion and application, “DC project site construction centralized control platform” has become an important part of the ubiquitous power Internet of Things construction in the field of infrastructure.
In the management background of State Grid DC Company, enter the ±500kV Fengning converter station module of the construction under construction, we found that the audio and video collection of fixed cameras, mobile cameras and drone cruises on site can be uploaded in time and can be uploaded to the State Grid Co., Ltd. conducts dynamic real-time data transmission, allowing people to see the situation at a glance. Open the content of the remote consultation. The owner project department of the project site and relevant technical experts are using wearable devices and other technical equipment to conduct consultations and exchanges on improving the quality of the firewall pouring process.
“The platform conducts real-time monitoring, analysis and early warning of digital information collected from on-site safety, quality, progress, risk, environmental protection, water protection and other processes. In this way, even though we are thousands of kilometers away from the site, our situation is no better than on-site. Less.” Chen Li introduced.
“Smart construction site” promotes intelligent transformation of project management
In January 2019, the Beijing Converter Station of the Zhangbei Flexible DC Project is carrying out the jacking construction of the large-span grid structure. They use the “smart construction site” grid jacking monitoring system to monitor and analyze the stress state, structural attitude and meteorological conditions of each jack in real time, intelligently control the jacking system, and issue risk warnings.
As early as in the construction of the Zhundong-Wannan ±1100kV UHV DC project, State Grid DC Company started the construction of a “smart construction site”: building an integrated monitoring and command platform, and using the Internet and big data technology, the “human, Real-time monitoring, record storage, intelligent analysis and status early warning of the status of machine, material, method and environment”, objectively analyze the characteristics and laws of the progress, safety, quality and risk of the construction site, and realize the big data analysis of the whole process of the construction site exhibit.
State Grid Corporation of China put forward the strategic goal of “three types and two networks, world-class”, and the construction of “smart construction sites” has entered the 2.0 era. State Grid DC Company has transformed and upgraded related functions, improved the intelligent “information factor”, connected with all aspects of the site, made it a comprehensive “ecological perception” of all elements of construction site operations, and helped improve the level of construction management.
At the ±800kV Hainan converter station, after wearing a holographic AR eye, we can quickly identify the on-site construction personnel, machinery, equipment, buildings, geological environment and other information that have been loaded in the database. When scanning the QR code of a device around you, you can immediately see the internal structure of the device, and you can quickly and comprehensively grasp the device information. “Hainan converter station is located in a remote location. The application of VR/AR technology allows us to use voice, video, images, text and other means to conduct interactive operations. Experts can interact with on-site personnel through virtual reality technology to guide on-site work in a timely and accurate manner. It is convenient for the construction project department to communicate with experts remotely and diagnose construction problems.” Zhao Hongwei, the person in charge, said, “Hainan converter station is the first of the ‘new five-straight’ project, and the ‘smart construction site’ system has been installed from the beginning of planning. Each terminal device on the construction site is like a sensitive sensor and information collection source, which allows us to dynamically grasp the construction site information, so as to achieve the purpose of flexible decision-making and scientific management.”
Digitalization of the whole business improves the level of operation and management
In June 2018, different from the previous transfer of engineering image files, the transfer of Zhundong-Wannan ±1100 kV UHV DC line engineering image files was more efficient. The same workload used to require more than 30 people to work together for a month. Now we have completed the collection and transfer of all the data simultaneously with the completion and commissioning of the project. Through UHV engineering image big data management, Zhundong-Wannan ±1100 kV UHV DC engineering files are used to collect digital photos of engineering construction through mobile applications, replacing the traditional “camera + hand-held signage” collection mode, which improves the process collection efficiency; Standardized UHV engineering image process collection, collection scope and filing requirements enable engineering image files to record the entire process from the original state of the construction project to the completion of the project.
The project research team of the State Grid DC Company completed the project of “UHV Image Big Data Management and Standardization Research” through on-the-spot investigation on the current situation of on-site image acquisition of the ±1100 kV UHVDC transmission project in East-Wannan Work Specifications” to comprehensively guide the development of UHV engineering imaging work; build an image data management platform based on “mobile terminal acquisition + web terminal management + cloud storage” to realize the rapid and standardized collection of digital photos during the construction process, and realize various digital photos. Photo retrieval, query, analysis and statistical functions.
The ubiquitous power Internet of Things construction has built a platform for enterprise management improvement. In addition to file management, automatic completion and final account transfer, logistics intelligent management and control have entered the “fast lane”, and the efficiency and quality of corporate compliance management have been improved. State Grid DC Company adopts the idea of ”scientific overall planning, orderly access, and segmented improvement”, and gradually transplants related businesses to “online”. The digital management and control of engineering quantities can be connected with BIM software and budgeting software during the bidding stage to form a fine comparison between the BIM 3D model and the list of engineering quantities. In the contract execution stage, the BIM software is connected with the cost control software, and the construction progress can be scientifically analyzed by confirming the project progress and comparing and analyzing the project with the bill of quantities. In the settlement stage, the automatic statistics of engineering volume, the automatic collection of changes and visa materials, and the automatic and vivid settlement of settlement declaration documents and settlement audit documents are realized. The intelligent equipment manufacturing supervision function module realizes all-element monitoring, automatic review and sampling of equipment manufacturing supervision information.
This year marks the 70th anniversary of the founding of the People’s Republic of China. During the National Day, the three main themes of “My Motherland and Me”, “Captain of China” and “The Climber” showed the audience moving Chinese stories from different angles. It is worth mentioning that these three films focus more on the ordinary people behind the classic historical moments and on the real stories that are taking place on the land of the motherland, moving countless audiences with fresh materials.
In the past 70 years, China has created one glory after another. As our country moves closer to the center of the world stage and integrates deeply with the world, how to tell the Chinese story well has become a mission of the new era. At the National Propaganda and Ideological Work Conference in 2018, General Secretary Xi Jinping emphasized: “We must promote the building of international communication capabilities, tell Chinese stories well, spread Chinese voices well, show a real, three-dimensional and comprehensive China to the world, and improve the country’s cultural soft power and Chinese cultural influence.”
For a long time, the narrative dominated by government departments and focused on telling a grand development picture has dominated the market. The world-renowned economic data, modern infrastructure and high-rise buildings, the modern lifestyle led by Alibaba and other companies, China’s home diplomacy and grand events, etc., are all amazing. But at the same time, the repeated appearance of a few scenes may cause the audience to experience aesthetic fatigue. In terms of soft narrative, Peking Opera, martial arts, calligraphy and other content have been used as labels of Chinese culture for a long time, occupying a dominant position in foreign cultural dissemination and exchanges, but often only superficial, and the deep-rooted Chinese cultural concepts rooted in them. , the mining is relatively insufficient, and the sense of innovation is also weak.
In the new era, this situation is gradually changing. The movie “The Wandering Earth” was especially surprising. As a “milestone of Chinese sci-fi movies”, “The Wandering Earth” integrates the values of the Chinese nation, gets rid of the routine of “finding a new home” in Western movies, and creates a new paradigm of “Wandering Earth”, which makes the audience deeply feel the traditional Chinese culture. The feeling of home and country reflects China’s unique imagination of the science fiction proposition of the future world. At the same time, unlike Hollywood-style “individual heroism”, in “The Wandering Earth”, in the face of the coming disaster, all human beings unite to form a coalition government and seek a common solution. Isn’t this a powerful introduction to the concept of “a community with a shared future for mankind”? The “National Day Trilogy” movie dedicated to the 70th anniversary of the film further demonstrated the collectivist values in Chinese culture by narrating the “uncommon” stories of ordinary people, conveying China’s cultural confidence, and achieved good communication effects.
At present, China has become the focus of the world’s attention. Raising the flag, gathering people’s hearts, cultivating new talents, revitalizing culture, developing image, trying to tell Chinese stories well, and shaping China’s image in the world are the missions and tasks that every literary and art worker must consciously undertake. Five thousand years up and down, 90,000 miles across, the broad and profound traditional culture, and the unremitting pursuit of a better life by 1.4 billion Chinese sons and daughters are our inexhaustible source of stories. In the new historical position of the new era of socialism with Chinese characteristics, we should keep in mind the original intention of serving the people, take root among the masses, devote ourselves to practice, pay attention to the stories of ordinary people that are happening on the land of the motherland, and show their testimony and participation in the great motherland. A moving scene of history. While “keeping upright”, we should also actively innovate the narrative and expression forms of Chinese stories, grasp the general trend, distinguish objects, implement precise policies, and do a good job in the literary and artistic expression of Chinese stories, so that the world can have a deeper understanding of colorful and peaceful development. , a civilized and progressive China, and a diverse, integrated, hard-working, open and inclusive Chinese people have created a favorable domestic and international environment for my country’s development.
As General Secretary Xi Jinping said: “We have the ability to do China’s affairs well, but we haven’t the ability to tell China’s story well? We should have this confidence!”