Urban circle urban rail transit cloud platform, implementation method, equipment and medium

Abstract

The invention relates to the technical field of rail transit, in particular to an urban circle urban rail transit cloud platform, an implementation method, equipment and a medium. A two-stage architecture mode is adopted, and a first-stage central cloud platform is arranged in a central city of an urban circle; the first-stage center cloud platform comprises a main center cloud platform and a disaster recovery center cloud platform; setting a second-level central cloud node in a non-central city, or setting a second-level central cloud node in a central city according to a line construction condition; and the first-stage central cloud platform and the second-stage central cloud node carry out data communication through a trans-provincial or trans-city upper-layer communication transmission network. The city circle urban rail cloud platform with two-stage architecture and distributed deployment is constructed, hierarchical configuration and centralized management of trans-provincial (city) operation line resources in a city circle range are realized, the resource use benefit of the urban rail cloud platform is maximized, and the construction, operation and maintenance cost of urban rail transit in the city circle is reduced.

Description

Technical Field

[0001] The present disclosure relates to the field of rail transit technology, and in particular to a metropolitan urban rail transit cloud platform, implementation method, equipment and medium. Background Art

[0002] In recent years, with the continuous development and application of new generation information technologies such as cloud computing, big data, artificial intelligence, 5G, and the Internet of Things, as well as the acceleration of the layout of "new infrastructure", the development demand for smart urban rail transit (hereinafter referred to as "smart urban rail") is increasing. Under the guidance of relevant standards and specifications, the construction of urban rail transit cloud platform has gradually become the basic platform and digital foundation for the development of smart urban rail, and its application value has been highly recognized by more and more urban subways. The interconnection and integrated development of urban rail transit within the metropolitan area urgently requires new smart urban rail infrastructure to provide new information resources for the development of urban rail transit in the metropolitan area. On the basis of the existing single city urban rail transit cloud platform application, how to use cloud computing technology to build a coordinated and unified urban rail transit platform within the metropolitan area and improve the resource utilization efficiency and reliability of the cloud platform is an important issue currently facing the construction of urban rail transit in the metropolitan area.

[0003] The Urban Rail Transit Cloud Platform (hereinafter referred to as "Urban Rail Cloud") is a new type of rail transit information infrastructure based on cloud computing technology. It can access scalable and flexible physical or virtual shared resource pools through the network, and obtain and manage resources on demand by itself. The Urban Rail Cloud breaks the construction model of independent deployment and resource isolation of traditional urban rail transit information systems, integrates the physical servers and other information resources of various information systems, and provides logically isolated virtual servers and other information resources on demand for various urban rail transit information systems through cloud computing technologies such as virtualization, realizing the centralized management and intensive use of urban rail transit information resources, improving the utilization rate and efficiency of information resources, and has become the basic support platform for the informatization construction of various urban rail transit.

[0004] The existing urban rail transit cloud platform adopts the "main-standby dual center + edge cloud node" architecture to provide stable and reliable virtualized servers and other resources for various urban rail business systems. This type of cloud architecture only supports applications within a single city and cannot meet the system architecture, comprehensive management and reliability requirements of inter-provincial (municipal) metropolitan rail transit interconnection and metropolitan urban rail transit cloud platforms. Summary of the invention

[0005] In response to the above problems, the present invention provides a metropolitan urban rail transit cloud platform, implementation method, equipment and medium.

[0006] In a first aspect, a metropolitan area urban rail transit cloud platform includes:

[0007] A two-level architecture model is adopted, and the first-level central cloud platform is set up in the central city of the metropolitan area; the first-level central cloud platform includes the main central cloud platform and the disaster recovery central cloud platform;

[0008] Set up second-level central cloud nodes in non-central cities, or set up second-level central cloud nodes in central cities according to the line construction situation;

[0009] Data communication is carried out between the first-level central cloud platform and the second-level central cloud nodes through the upper-level communication transmission network across provinces or cities.

[0010] Furthermore, the first-level central cloud platform is a metropolitan area line network-level urban rail cloud platform;

[0011] The first-level central cloud platform is connected to each rail transit line in the central city, that is, it is directly connected to the station cloud edge nodes of each line in the central city. The first-level central cloud platform is used to carry each line network-level application system and provide the required resources for each line and line network-level application;

[0012] The first-level center cloud platform is also used to manage the control center cloud nodes of cross-provincial or cross-city operating lines, and to uniformly manage the line resources within the metropolitan area.

[0013] Furthermore, the second-level central cloud node is connected to the inter-provincial or inter-city operating lines within the metropolitan area, and connected to the station cloud edge nodes of each inter-provincial or inter-city operating line;

[0014] The second-level central cloud node is used to carry the application system of the cross-provincial or city operation line control center, provide the required resources for cross-provincial or city operations, and manage the cross-provincial or city line resources in a hierarchical manner.

[0015] Furthermore, it also includes: station segment cloud edge nodes,

[0016] The station cloud edge node is a resource pool deployed locally by the metropolitan area urban rail cloud platform at line stations, depots, and parking lots according to business needs;

[0017] The station cloud edge nodes have edge computing capabilities and provide corresponding cloud services for the lines.

[0018] Furthermore, a distributed deployment mode is adopted.

[0019] Further, it also includes: Comprehensive Management Center;

[0020] The comprehensive management center is used to uniformly manage the central cloud platform, central cloud nodes, and station cloud edge nodes.

[0021] Furthermore, unified management includes: unified cloud platform management, unified operation and maintenance management, unified security management, unified network management and unified cloud platform service management.

[0022] A method for implementing a metropolitan area urban rail transit cloud platform, using the following logical architecture to implement the above-mentioned metropolitan area urban rail transit cloud platform;

[0023] Logical architecture, including: access layer, IaaS layer, PaaS layer and business application layer;

[0024] The access layer is used to deploy access firewalls and switches to provide access services for various urban rail lines in the metropolitan area and realize data interaction between signal data and the cloud platform; signal data includes: signal, communication, automatic ticket vending, power supply, electromechanical, security inspection, monitoring business data of each line, and smart subway business data;

[0025] The IaaS layer is used to deploy cluster devices, manage infrastructure in a distributed manner, and provide infrastructure services for various business applications of urban rail transit in the metropolitan area; cluster devices include computing resource pools, storage resource pools, network resource pools, security resource pools, and cloud desktops; infrastructure includes cloud platform server devices, network devices, and security devices; infrastructure services include bare metal servers, virtual hosts, block storage, file storage, security components, and virtual desktops;

[0026] The PaaS layer is used to deploy platform software or components, provide data analysis and governance services, application development and deployment tools, application development libraries for various business applications of urban rail transit in the metropolitan area, and provide data sharing for all domain businesses; platform software or components include: big data resource pool, container, microservices and middleware;

[0027] The business application layer is used to deploy various business applications for urban rail in the metropolitan area; business applications include: line network operation command, line network power dispatching, line network online monitoring, clearing and settlement, line network editing and broadcasting, signaling, communication, integrated monitoring, AFC and security inspection services, as well as line network security integration platform, line network energy management, intelligent operation and maintenance, smart station line network and line business systems.

[0028] In a second aspect, an electronic device includes a processor, a communication interface, a memory, and a communication bus, wherein the processor, the communication interface, and the memory communicate with each other via the communication bus;

[0029] a memory storing a computer program;

[0030] The processor is used to implement the above-mentioned metropolitan area urban rail transit cloud platform when executing the computer program stored in the memory.

[0031] In a third aspect, a computer-readable storage medium stores a computer program, which, when executed by a processor, implements the above-mentioned metropolitan urban rail transit cloud platform.

[0032] The present disclosure at least includes the following beneficial effects:

[0033] The present invention builds a metropolitan area urban rail cloud platform with a "two-level architecture and distributed deployment" to achieve hierarchical configuration and centralized management of cross-provincial (municipal) operating line resources within the metropolitan area, maximize the resource utilization efficiency of the urban rail cloud platform, and reduce the construction, operation and maintenance costs of urban rail transit in the metropolitan area;

[0034] Through innovations in cloud platform system architecture, deployment model, and management model, the availability and reliability of the urban rail transit cloud platform are improved, and the operational service level and operation and maintenance management efficiency of the cloud platform are improved.

[0035] Other features and advantages of the present disclosure will be described in the following description, and partly become apparent from the description, or be understood by implementing the present disclosure. The purpose and other advantages of the present disclosure can be realized and obtained by the structures indicated in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0037] Figure 1 A schematic diagram of the system architecture of the metropolitan urban rail transit cloud platform according to an embodiment of the present disclosure;

[0038] Figure 2 A schematic diagram of the logical architecture of the metropolitan urban rail transit cloud platform of the embodiment of the present disclosure;

[0039] Figure 3 This is a functional diagram of the integrated management center of the metropolitan urban rail transit cloud platform of the embodiment of the present disclosure;

[0040] Figure 4 It is a schematic diagram of the structure of an electronic device according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0042] like Figure 1 As shown, a metropolitan area urban rail transit cloud platform includes:

[0043] A two-level architecture model is adopted, and the first-level central cloud platform is set up in the central city of the metropolitan area; the first-level central cloud platform includes the main central cloud platform and the disaster recovery central cloud platform;

[0044] Set up second-level central cloud nodes in non-central cities, or set up second-level central cloud nodes in central cities according to the line construction situation;

[0045] Data communication is carried out between the first-level central cloud platform and the second-level central cloud nodes through the upper-level communication transmission network across provinces or cities.

[0046] The specific implementation is as follows:

[0047] At present, urban rail cloud in various places is basically constructed and applied within a single city. In order to meet the requirements of safe and reliable operation of urban rail transit business, the urban rail cloud adopts the cloud architecture of "main and standby dual centers + edge cloud nodes", that is, two control centers are selected within a single city to build the main central cloud platform and the backup central cloud platform, and edge cloud nodes are built at stations / sections to fully carry various business systems of urban rail transit. Under normal circumstances, the main central cloud platform provides virtualized servers for the business system. When the main central cloud platform fails and is unavailable, it switches to the backup central cloud platform; when both the main and standby centers are unavailable, the business system is downgraded to the station / section operation; the high reliability and disaster recovery redundancy design of the urban rail cloud is realized.

[0048] The present invention is based on the expansion of the existing technical architecture of the cloud platform, and provides a method for implementing a metropolitan rail cloud platform for metropolitan rail transit while maintaining the intensive use of cloud platform resources, including the overall design of the metropolitan rail transit cloud platform and the optimization of existing modules. The mainstream urban rail cloud platform on the market is based on OpenStack, ZStack, etc. The present invention is mainly based on the relatively mature OpenStack for expansion; however, similar results can be achieved using ZStack, etc.

[0049] The metropolitan area urban rail transit cloud platform is composed of multiple cloud nodes, using a distributed deployment mode. The central cloud node is set up in the cross-provincial (municipal) line control center, and two control center nodes in the central city of the metropolitan area are selected as the main center and disaster recovery center of the central cloud (the disaster recovery center can be selected in a non-central city according to the requirements of off-site disaster recovery). Each cloud node is responsible for carrying a part of the line, and the urban rail cloud line access strategy of a single city is reused here (the line network-level urban rail cloud can access multiple urban rail transit lines).

[0050] The metropolitan area urban rail transit cloud platform adopts a two-level architecture model. The first-level central cloud platform is set up in the central city of the metropolitan area, including the main central cloud platform and the disaster recovery central cloud platform, and the second-level central cloud node is set up in the non-central city (the central cloud node can also be set up in the central city according to the line construction situation). The first-level central cloud platform and the second-level central cloud node communicate data through the upper-level communication transmission network across provinces (cities).

[0051] The first-level central cloud platform: It is a metropolitan area line network-level urban rail cloud platform. The first-level central cloud platform is connected to various rail transit lines in the central city (that is, it is directly connected to the station cloud edge nodes of each line in the central city), and carries the network-level application systems of each line to meet the resource requirements of each line and network-level application. At the same time, the first-level central cloud platform manages the control center cloud nodes of cross-provincial (municipal) operating lines to achieve unified and intensive management of resources of various lines within the metropolitan area. In addition to carrying the business of the affiliated lines, the first-level central cloud platform also serves as the main central cloud platform and the disaster recovery center cloud platform, and has the ability to manage the cloud platform and disaster recovery backup of line applications and data.

[0052] The second-level central cloud node is the second-level node of the urban rail cloud platform at the network level of the metropolitan area. The second-level central cloud node is connected to the inter-provincial (municipal) operating lines within the metropolitan area, connected to the station cloud edge nodes of each inter-provincial (municipal) operating line, and carries the application system of the inter-provincial (municipal) operating line control center to meet the resource requirements of each inter-provincial (municipal) operation and realize the hierarchical management of inter-provincial (municipal) line resources. At the same time, in addition to carrying the business of the affiliated lines, the second-level central cloud node also has the ability to manage the cloud nodes of the line control center and downgrade the applications of inter-provincial (municipal) lines. When the communication transmission link connected to the main center and disaster recovery center of the urban rail cloud in the metropolitan area is blocked or the central cloud platform fails and is unavailable, the line center cloud node can provide downgraded resources and operating environment for each line and line network-level application system connected to the central cloud platform. The cloud platform can be downgraded to operate, which further improves the platform reliability compared to the rail transit cloud platform of a single city, and further ensures the safety of inter-provincial (municipal) line operations in the metropolitan area.

[0053] Station edge cloud nodes: are resource pools deployed locally by the metropolitan area urban rail cloud platform at stations, depots, and parking lots according to business needs. Station edge cloud nodes have edge computing capabilities and provide corresponding cloud services for the line, meeting the resource requirements of local operation of station applications, network operation of applications with high latency requirements, and offline operation. Station edge cloud nodes are included in the unified management of the metropolitan area urban rail cloud.

[0054] like Figure 2As shown, the present invention is aimed at the field of metropolitan rail transit. Based on cloud computing technology, a metropolitan urban rail transit cloud platform is constructed to uniformly carry the network-level business systems, big data platforms, and line-level business systems of various lines of metropolitan rail transit, including an access layer, an IaaS layer, a PaaS layer, a business application layer and other parts.

[0055] Access layer: Deploy access firewalls, access switches and other edge devices to provide access services for various urban rail lines in the metropolitan area, and realize data interaction between traditional rail transit services such as signaling, communication, automatic ticket vending and checking (AFC), power supply, electromechanical, security inspection, and integrated surveillance (ISCS) of each line, and new smart subway services such as smart stations and intelligent operation and maintenance and the cloud platform.

[0056] IaaS layer (Infrastructure as a Service): Deploy cluster devices such as computing resource pools, storage resource pools, network resource pools, security resource pools and cloud desktops, perform distributed management of cloud platform server equipment, network equipment, security equipment and other infrastructure, and provide infrastructure services for various business applications of urban rail in the metropolitan area, including bare metal servers, virtual hosts, block storage, file storage, security components, virtual desktops, etc.

[0057] PaaS layer (Platform as a Service): deploys platform software / components such as big data resource pools, containers, microservices, and middleware to provide data analysis and governance services, application development and deployment tools, application development libraries, etc. for various business applications of urban rail in the metropolitan area, such as the software operating environment for business applications such as containers and microservices, breaking the data silos between various application systems of urban rail in the metropolitan area, realizing data sharing of the entire domain business, and at the same time improving the efficiency of business application development and the system availability and stability.

[0058] Business application layer: Deployment of various business applications of urban rail transit in the metropolitan area, including traditional line-level business systems such as line network operation command, line network power dispatching, line network online monitoring, clearing and settlement, line network editing and broadcasting, signal, communication, comprehensive monitoring, AFC, security inspection, and emerging line network and line business systems such as line network security integration platform, line network energy management, intelligent operation and maintenance, and smart stations. Each business system is adapted and developed based on the cloud platform, deployed on physical machines and virtual machines at the IaaS layer, containers and microservices at the PaaS layer, and finally forms an overall solution for urban rail transit. At the same time, according to the actual needs of urban rail transit, the urban rail transit cloud platform can provide flexible technical support for business integration, resource optimization, continuous iteration, and personalized customization of various professions to meet the requirements of innovative development of various business applications.

[0059] like Figure 3As shown, the metropolitan area urban rail transit cloud platform sets up a comprehensive management center to realize the unified management of the central cloud platform, central cloud nodes and station edge cloud nodes, including unified cloud platform management, unified operation and maintenance management, unified security management, unified network management, unified cloud platform services, etc., to create a comprehensive portal for the metropolitan area urban rail transit cloud platform and further improve the efficiency of cloud platform operation and management.

[0060] The comprehensive management center of the metropolitan rail cloud is based on the capabilities of cloud platforms / cloud nodes at all levels, and connects the management and service links of cloud platform computing, storage, network, security and operation and maintenance to build a logically unified metropolitan rail cloud. It seamlessly and uniformly manages cloud resources at all levels, uniformly manages accounts and monitoring and early warning of various access lines and applications, provides standardized services such as metropolitan rail cloud service catalogs, processes, and authentication, and uniformly displays data of key links of the metropolitan rail cloud.

[0061] Unified cloud platform management: Through the interconnection between the center and the station segments, unified management and hierarchical management of computing and storage resources at all levels of the central cloud platform, central cloud nodes, and station segment edge cloud nodes are achieved, which is compatible with a variety of cloud platform architectures and server architectures.

[0062] Unified operation and maintenance management: Through the full collection of data such as cloud platform resources, cloud platform operation and maintenance, cloud platform network and cloud platform security, centralized management, centralized alarm and unified operation and maintenance of various types of equipment on the cloud platform can be achieved.

[0063] Unified security management: Manage and control security devices or security components distributed in the metropolitan rail cloud network, including security device management, security policy formulation, security service management, data security management, terminal access control, etc., to achieve centralized security management and control.

[0064] Unified network management: Through automatic generation of network topology, large Layer 2 network design, and logical centralized control, the network can be linked with cloud platform computing resources and storage resources, and automatic configuration, performance monitoring, and fault monitoring of the cloud platform network can be completed.

[0065] Unified cloud platform service: Through the standardized design of cloud service catalog, service process, service authentication, organizational management, user management, etc., the non-differentiated services and standard operations of the urban rail cloud in the metropolitan area are realized, and the service process is centrally monitored.

[0066] Cloud platform comprehensive portal: Integrate cloud platform management, operation and maintenance, security, network and services to realize a unified operation portal with integrated autonomous services, unified data dashboard, quick navigation view, self-service report preparation, personalized homepage and large screen.

[0067] The metropolitan urban rail transit cloud platform architecture design based on OpenStack can also be replaced by ZStack.

[0068] The comprehensive management plan for the metropolitan area urban rail transit cloud platform can also be applied to the management of other urban rail transit cloud platforms.

[0069] The metropolitan area urban rail transit cloud platform adopts a "two-level architecture", which expands the architectural design of a single urban rail transit cloud platform; the metropolitan area urban rail transit cloud platform adopts "distributed deployment" to provide a safer and more reliable operating environment for cross-provincial (municipal) operating lines; the metropolitan area urban rail transit cloud platform consists of an access layer, an IaaS layer, a PaaS layer, and a business application layer, providing full-stack cloud services such as computing, storage, networking, security, and data for various business applications of metropolitan rail;

[0070] The metropolitan area urban rail transit cloud platform adopts a comprehensive management approach to provide a simpler and more efficient cloud platform operation and management model for cross-provincial (city) operating lines.

[0071] Through the layered and intensive design of the metropolitan area's urban rail cloud platform, the reliability of the cloud platform can reach 99.99%. The application deployment efficiency of the metropolitan area's cross-provincial (city) rail transit lines has been increased by more than 50%, and the application reliability has been greatly improved. Compared with traditional solutions, it saves more than 30% of energy consumption and 22% of equipment space.

[0072] A method for implementing a metropolitan area urban rail transit cloud platform, using the following logical architecture to implement the above-mentioned metropolitan area urban rail transit cloud platform;

[0073] Logical architecture, including: access layer, IaaS layer, PaaS layer and business application layer;

[0074] The access layer is used to deploy access firewalls and switches to provide access services for various urban rail lines in the metropolitan area and realize data interaction between signal data and the cloud platform; signal data includes: signal, communication, automatic ticket vending, power supply, electromechanical, security inspection, monitoring business data of each line, and smart subway business data;

[0075] The IaaS layer is used to deploy cluster devices, manage infrastructure in a distributed manner, and provide infrastructure services for various business applications of urban rail transit in the metropolitan area; cluster devices include computing resource pools, storage resource pools, network resource pools, security resource pools, and cloud desktops; infrastructure includes cloud platform server devices, network devices, and security devices; infrastructure services include bare metal servers, virtual hosts, block storage, file storage, security components, and virtual desktops;

[0076] The PaaS layer is used to deploy platform software or components, provide data analysis and governance services, application development and deployment tools, application development libraries for various business applications of urban rail transit in the metropolitan area, and provide data sharing for all domain businesses; platform software or components include: big data resource pool, container, microservices and middleware;

[0077] The business application layer is used to deploy various business applications for urban rail in the metropolitan area; business applications include: line network operation command, line network power dispatching, line network online monitoring, clearing and settlement, line network editing and broadcasting, signaling, communication, integrated monitoring, AFC and security inspection services, as well as line network security integration platform, line network energy management, intelligent operation and maintenance, smart station line network and line business systems.

[0078] like Figure 4 As shown, the present disclosure provides an electronic device, including a processor 401, a communication interface 402, a memory 403 and a communication bus 404, wherein the processor 401, the communication interface 402 and the memory 403 communicate with each other through the communication bus 404;

[0079] Memory 403, storing computer programs;

[0080] The processor 401 is used to implement the above-mentioned metropolitan area urban rail transit cloud platform when executing the computer program stored in the memory 403.

[0081] The present disclosure provides a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the above-mentioned metropolitan urban rail transit cloud platform.

[0082] The computer-readable storage medium may be included in the device / apparatus described in the above embodiment; or it may exist independently without being assembled into the device / apparatus. The above computer-readable storage medium carries one or more programs, and when the above one or more programs are executed, the method according to the embodiment of the present disclosure is implemented.

[0083] According to an embodiment of the present disclosure, a computer-readable storage medium may be a non-volatile computer-readable storage medium, for example, may include but is not limited to: a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination thereof. In the present disclosure, a computer-readable storage medium may be any tangible medium containing or storing a program that may be used by or in conjunction with an instruction execution system, apparatus, or device.

[0084] Although the present disclosure has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present disclosure.

Claims

1. A metropolitan urban rail transit cloud platform, characterized in that: include: A two-level architecture model is adopted, and the first-level central cloud platform is set up in the central city of the metropolitan area; the first-level central cloud platform includes the main central cloud platform and the disaster recovery central cloud platform; Set up second-level central cloud nodes in non-central cities, or set up second-level central cloud nodes in central cities according to the line construction situation; Data communication is carried out between the first-level central cloud platform and the second-level central cloud nodes through the upper-level communication transmission network across provinces or cities.

2. The metropolitan area urban rail transit cloud platform according to claim 1, characterized in that: The first-level central cloud platform is the metropolitan area network-level urban rail cloud platform; The first-level central cloud platform is connected to each rail transit line in the central city, that is, it is directly connected to the station cloud edge nodes of each line in the central city. The first-level central cloud platform is used to carry each line network-level application system and provide the required resources for each line and line network-level application; The first-level center cloud platform is also used to manage the control center cloud nodes of cross-provincial or cross-city operating lines, and to uniformly manage the line resources within the metropolitan area.

3. The metropolitan area urban rail transit cloud platform according to claim 1, characterized in that: The second-level central cloud node is connected to the inter-provincial or inter-city operating lines within the metropolitan area, and is connected to the station cloud edge nodes of each inter-provincial or inter-city operating line; The second-level central cloud node is used to carry the application system of the cross-provincial or city operation line control center, provide the required resources for cross-provincial or city operations, and manage the cross-provincial or city line resources in a hierarchical manner.

4. The metropolitan area urban rail transit cloud platform according to claim 1, characterized in that: Also includes: Station segment cloud edge node, The station cloud edge node is a resource pool deployed locally by the metropolitan area urban rail cloud platform at line stations, depots, and parking lots according to business needs; The station cloud edge nodes have edge computing capabilities and provide corresponding cloud services for the lines.

5. The metropolitan area urban rail transit cloud platform according to claim 1, characterized in that: Adopt distributed deployment mode.

6. The metropolitan urban rail transit cloud platform according to claim 1, characterized in that: Also included: Integrated Management Center; The comprehensive management center is used to uniformly manage the central cloud platform, central cloud nodes, and station cloud edge nodes.

7. The metropolitan area urban rail transit cloud platform according to claim 6, characterized in that: Unified management, including: unified cloud platform management, unified operation and maintenance management, unified security management, unified network management and unified cloud platform service management.

8. A method for implementing a metropolitan area urban rail transit cloud platform, characterized in that: The following logical architecture is used to implement a metropolitan urban rail transit cloud platform described in any one of claims 1-7; Logical architecture, including: access layer, IaaS layer, PaaS layer and business application layer; The access layer is used to deploy access firewalls and switches to provide access services for various urban rail lines in the metropolitan area and realize data interaction between signal data and the cloud platform; signal data includes: signal, communication, automatic ticket vending, power supply, electromechanical, security inspection, monitoring business data of each line, and smart subway business data; The IaaS layer is used to deploy cluster devices, manage infrastructure in a distributed manner, and provide infrastructure services for various business applications of urban rail transit in the metropolitan area; cluster devices include computing resource pools, storage resource pools, network resource pools, security resource pools, and cloud desktops; infrastructure includes cloud platform server devices, network devices, and security devices; infrastructure services include bare metal servers, virtual hosts, block storage, file storage, security components, and virtual desktops; The PaaS layer is used to deploy platform software or components, provide data analysis and governance services, application development and deployment tools, application development libraries for various business applications of urban rail transit in the metropolitan area, and provide data sharing for all domain businesses; platform software or components include: big data resource pool, container, microservices and middleware; The business application layer is used to deploy various business applications for urban rail in the metropolitan area; business applications include: line network operation command, line network power dispatching, line network online monitoring, clearing and settlement, line network editing and broadcasting, signaling, communication, integrated monitoring, AFC and security inspection services, as well as line network security integration platform, line network energy management, intelligent operation and maintenance, smart station line network and line business systems.

9. An electronic device, characterized in that: It includes a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory communicate with each other via the communication bus; a memory storing a computer program; The processor is used to implement a metropolitan urban rail transit cloud platform as described in any one of claims 1 to 7 when executing a computer program stored in a memory.

10. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, it implements a metropolitan urban rail transit cloud platform as described in any one of claims 1-7.

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