As the country's first fully autonomous operation system (TACS) demonstration project, the train control system is undoubtedly the most "high-energy" label of the first phase of Qingdao Metro Line 6. Based on scientific and technological innovation, Qingdao Metro has accelerated the realization of high-level scientific and technological self-reliance and self-reliance, and led the research and development of a new generation of international leading rail transit train control system with completely independent intellectual property rights, which has been clearly included in the "China Urban Rail Transit Smart Urban Rail Development Outline". At the same time, the first phase of Line 6 is also the first smart subway demonstration line built by Qingdao Metro, in addition to TACS, the line fully applies smart stations, and the five smart operation and maintenance systems are fully implemented.
Smart station: active service and incident disposal have a "high-energy" helper
The first phase of Line 6 is the first smart station line in China to adopt full functions, all scenarios and all elements, and the emergence of smart stations not only improves the travel experience of passengers, but also demonstrates Qingdao's determination and achievements in the construction of smart cities.
Smart station system interface
Through the use of video AI, IoT perception, personnel positioning, BIM and other intelligent means, Qingdao Metro has created 66 characteristic scenarios in the first phase of Line 6, promoting the intelligent upgrading of station passenger services and production operations.
The "wisdom" of smart stations is mainly reflected in three aspects, the first is accurate active service. For example, for the elderly who push wheelchairs and special passengers with reduced mobility, it can achieve instant and accurate identification, and notify the staff to go to the scene to provide accurate services at the first time, reflecting the people-centered service concept. The second is safer incident handling. For example, it can identify the fall of the passenger escalator in "seconds", stop the elevator remotely at the first time, and simultaneously push it to the nearest staff through the handheld terminal and bracelet to deal with it, so as to avoid secondary injuries to passengers, and greatly improve the perception and response efficiency of emergencies. The third is more efficient production operation. It can carry out smart station patrol and one-key remote switch station, and the overall station operation efficiency can be increased by 60%. In the future, Qingdao Metro will continue to deepen the application of smart stations, help the digital transformation of Qingdao rail transit, and inject new impetus into urban development.
Smart O&M: A number of O&M metrics have been significantly improved
The intelligent operation and maintenance system is an important project for the intelligent, digital and networked transformation and upgrading of urban rail transit. In the first phase of Line 6, a cloud platform for production business was built to realize the on-demand allocation of computing, storage, network, and security resources, and a smart operation and maintenance system covering five specialties: vehicle, power supply, electromechanical, communication, and public works was built based on the "cloud platform". Through the use of more than 10 advanced technologies such as digital twins, artificial intelligence, big data analysis, knowledge graphs, artificial intelligence algorithms and blockchain, we can deeply mine detection and monitoring data and fault data, build equipment status assessment models and life prediction models, realize the intelligent operation and maintenance system of the whole life cycle of the five major operation and maintenance professional equipment, and promote more than 100 panoramic operation and maintenance needs, such as intelligent equipment inspection, equipment status perception, robot maintenance, operation and maintenance scene information visualization, and accurate location and prediction of equipment faults.
Interfaces related to the smart O&M system
The intelligent O&M system of Line 6 has achieved remarkable results in improving O&M efficiency, reducing labor costs, and reducing the incidence of failures. Specifically, the system effectively reduces the labor cost of operation and maintenance by about 20%, significantly improves the fault handling efficiency by about 50%, and successfully reduces the failure rate by more than 15%. By providing scientific and reasonable O&M strategy support for O&M personnel, the intelligent O&M system realizes the transformation from emergency treatment after equipment failure to accurate prediction before failure, ensuring the safe and stable operation of equipment. This innovative practice has injected new vitality into the sustainable development of the rail transit industry, demonstrating the great potential of intelligent operation and maintenance systems in improving the operational efficiency and service quality of rail transit.
Smart construction: BIM technology is applied in all specialties and processes
Smart stations and smart operation and maintenance are closely related to the passenger experience after the opening of the line, but in fact, in the construction process of the first phase of Line 6, the power of "wisdom" is also reflected.
The first phase of the first phase of the project of Line 6 applied BIM forward design in all disciplines and processes, formulated a unified model standard from the civil design stage, and handed over to the construction and post-station specialties, and built an integrated management platform based on BIM.
Comparison diagram of the BIM model of the prefabricated main substation and the completion of on-site construction
In the design stage, complete the creation and management of the whole line and all professional models, three-dimensional display, BIM design optimization, model review, countersigning, etc., and implement professional positive design and innovative work after landing. In the construction stage, the creation of enterprise-level component model library, three-dimensional disclosure, construction simulation, visual progress management and other work have been completed, and the factory prefabrication and on-site assembly of air ducts, water pipes and comprehensive support and hangers based on BIM have been realized. In the completion stage, a digital as-built model of the whole line and all disciplines is highly consistent with the engineering entity and as-built drawings, and integrates various information during the construction period. In the operation and maintenance stage, complete the research on digital handover, BIM and intelligent operation and maintenance data docking.
Through BIM forward design, the first phase of Line 6 realizes factory prefabrication and modular installation, breaking through the technical barriers of the whole process such as design, construction, asset transfer, operation and maintenance, so that the data can truly flow and efficiently help the construction of the project.