The 2022 Beijing Winter Olympic Games is coming, stable network communication is an essential element to ensure the smooth running of sports events, but the overall network complexity of the event is quite high, and the network operation and maintenance of the Winter Olympic Games are facing considerable challenges.

China Unicom Winter Olympics Communications Operation Command Center (TTOC) is fully engaged in the command and dispatch work of the Winter Olympics communications operation guarantee system. What is the high-tech content of this center? On the same day, science and Technology Daily reporters visited TTOC, revealing the winter Olympics communications guarantee "smart brain".

"During the Beijing Winter Olympics and Paralympics, the command and operation network of all events, the media transmission network and the basic communication services of the games are all connected to all venues through the 'high-speed train' of the Olympic communication network. TTOC is the cockpit of this' high speed train '."

What kind of dark technology does this "cockpit" have?

It is understood that the traditional communication network operation and maintenance method requires professionals to conduct multiple on-site investigations to understand the fault location, and several professionals can communicate and locate the fault before putting forward a maintenance plan, which is a complicated and lengthy process. In most cases, the number of experts is limited, and the experience and level of outsourcing personnel are uneven. If the operation and maintenance personnel are unable to visit the site in person in case of a sudden emergency, the emergency maintenance project will be delayed, which will have a high risk impact on the operation. In addition, the number of networks grows exponentially and the environment becomes more and more complex. There can be several network slices in the same network, each of which has a specific topology and needs to understand a large amount of equipment information, bringing greater challenges to the current human operation and maintenance mode.

"As an international event, the network of the Beijing Winter Olympic Games must be secure and stable at 7×24 hours, with sufficient bandwidth and good performance. Therefore, in the network operation and maintenance of the Winter Olympics, it urgently needs an intelligent, digital and innovative operation and maintenance mode."

In order to ensure the smooth development of the communication network security work of the Winter Olympics, Beijing Unicom and Huawei jointly create AR digital innovative operation and maintenance mode. The application of MR digital venue monitoring with the combination of virtual and real provides an immersive venue group business indicator management system for remote security personnel.

Data visualization is the premise of digital operation and maintenance management. Unlike traditional operation and maintenance with multiple people and devices, AR operation and maintenance technology only needs one person and one mobile phone in a single station to complete on-site obstacle removal, making complex network operation and maintenance easier.

The reporter saw at the scene that the technical staff carried out 3D panel identification and tracking, high-precision positioning, and digital modeling of equipment, boards and ports through mobile phones, and anchored the background business information and boards in real time. This means that when a fault occurs, when the o&M personnel go to the machine room of the site, the AR o&M system immediately knows the location, information and cause of the fault, and directly guides the inspection personnel to the faulty device. The device panel can display the main device model, configuration parameters, and ne association by scanning the mobile phone. The data such as asset management, work order, fault alarm, and performance can be synchronized to assist O&M personnel to quickly locate faults. One-minute commissioning and troubleshooting can be realized, greatly shortening the fault handling time.

At the same time, the remote assistance module is invoked by THE AR operation and maintenance engine, so that the remote second-line experts can see the status quo of the fault site from the same perspective as the first-line operation and maintenance personnel, and can communicate in real time, collect data for comprehensive analysis, and achieve cross-professional installation and maintenance. Experts remotely mark the real-time scene and visually mark the port or board to be replaced, guiding the frontline to handle problems as if you were on site, quickly locating and removing faults, and greatly improving operation and maintenance efficiency.

This new technology, based on AR (augmented reality) + SLAM (dynamic modeling and positioning) +CV (machine vision), can be described as a tailored maintenance tool for field engineers. The background information and expert power can achieve millimeter-level precise positioning at a remote location, shorten the fault handling time by more than 50%, and improve the operation and maintenance efficiency by more than 30%.

China Unicom's 78 experts in various fields gathered in the Communication operation command center of the Winter Olympics will provide the dispatching and response of cross-domain business and international business throughout the Winter Olympics. This center will implement real-time unified monitoring (automatic inspection), scheduling, response and service for the communication information network of all Olympic venues and facilities in Beijing and Zhangjiakou. Put into use in the latest online digital operation platform, based on the resource, the ocog OBS business venues, lease line big customers, the media bus, the airport expressway and unified monitoring, information security indexes and 5g slice, public speaker, media + business intelligence games such as security, innovation and application of for the Olympics communications services play a key role.