CN113225375B - Distributed central station integrated urban rail cloud architecture system - Google Patents
Distributed central station integrated urban rail cloud architecture system Download PDFInfo
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- CN113225375B CN113225375B CN202110334169.0A CN202110334169A CN113225375B CN 113225375 B CN113225375 B CN 113225375B CN 202110334169 A CN202110334169 A CN 202110334169A CN 113225375 B CN113225375 B CN 113225375B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L27/00—Central railway traffic control systems; Trackside control; Communication systems specially adapted therefor
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/04—Network management architectures or arrangements
- H04L41/042—Network management architectures or arrangements comprising distributed management centres cooperatively managing the network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1097—Protocols in which an application is distributed across nodes in the network for distributed storage of data in networks, e.g. transport arrangements for network file system [NFS], storage area networks [SAN] or network attached storage [NAS]
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Abstract
The invention relates to a distributed central station integrated urban rail cloud architecture system. The method comprises the following steps: the first-level cloud resource pool is used for providing resource requirements such as calculation, network and storage for a central-level core service of a whole line or a line network and ensuring normal operation of the service; the secondary cloud resource pool is arranged in the centralized station and used for providing functions of management, calculation, network, storage and the like; the three-level cloud resource pool is arranged in the non-centralized station and used for providing computing, network and storage functions; the primary cloud resource pool is connected with the secondary cloud resource pool through a transmission ring network; and the second-level cloud resource pool is connected with the third-level cloud resource pool through a service ring network. Therefore, the scheme breaks through the traditional cloud platform construction idea and structure and the construction scheme of the transmission system, the edge cloud network and the transmission network can be effectively combined to construct an integral line network, the number of transmission devices, the number of cloud platform management devices, network optimization management and the like are reduced, and the construction cost of the transmission and cloud platform is effectively reduced.
Description
Technical Field
The invention relates to a cloud architecture system, belongs to the technical field of rail transit, and particularly relates to a distributed central station integrated urban rail cloud architecture system.
Background
The current station cloud is divided into two modes, one mode is a virtualization mode, and the other mode is a traditional cloud platform mode. Due to the fact that the virtualization function is single and the characteristic of cloud is not achieved, the resource management and maintenance are backward, and the method cannot adapt to higher-level station application or expansion.
The traditional cloud platform is built in a station according to a complete mode of a minimized cloud platform, and comprises roles of management, calculation, storage and the like. The mode can meet the requirements of station cloud on completeness in function and different services, has good expansibility, but has the problems of repeated resource investment and overhigh cost, is complex in network planning, and cannot migrate across stations on the premise of failure of the whole station computing resource pool.
The distributed central station integrated urban rail cloud architecture is proposed on the basis of the premise of the existing cloud computing architecture and the characteristics of urban rails, the distributed central station integrated urban rail cloud architecture is proposed on the basis of a station level, namely, each station is shared in computing and storage, the integrated central station integrated urban rail cloud architecture is proposed for the central station and the stations, and the central station integrated urban rail cloud architecture can manage and control the stations in a unified mode. The scheme is technically more in accordance with a business application scene, can provide effective cloud resources for related applications of a smart station and the like, can reduce the overall cost while meeting high reliability, finally realizes an energy-saving and efficiency-increasing green urban rail target, and realizes the purposes of improving the resource utilization rate of the server, providing services and resources as required, reducing energy consumption and reducing operation and maintenance cost.
Disclosure of Invention
The following presents a simplified summary of one or more aspects in order to provide a basic understanding of such aspects. This summary is not an extensive overview of all contemplated aspects, and is intended to neither identify key or critical elements of all aspects nor delineate the scope of any or all aspects. Its sole purpose is to present some concepts of one or more aspects in a simplified form as a prelude to the more detailed description that is presented later.
The invention mainly aims to solve the technical problems in the prior art and provides a distributed central station integrated urban rail cloud architecture system.
In order to solve the problems, the scheme of the invention is as follows:
a distributed central station-based integrated urban rail cloud architecture system comprises:
the first-level cloud resource pool is used for providing resources such as calculation, storage and the like for the center-level core service of the whole line or the line network as required, and ensuring the normal operation of the service;
the secondary cloud resource pool is arranged in the centralized station and used for providing functions of management, calculation, network, storage and the like;
the three-level cloud resource pool is arranged in the non-centralized station and used for providing functions of computing, network, storage and the like;
The primary cloud resource pool is connected with the secondary cloud resource pool through a transmission ring network; and the second-level cloud resource pool is connected with the third-level cloud resource pool through a service ring network.
Preferentially, in the distributed central station-based integrated urban rail cloud architecture system, the transmission ring network is a comprehensive bearing network.
Preferably, in the distributed central station-based integrated urban rail cloud architecture system, the service ring network is a large two-layer network structure which is formed by communicating switches between the second-level cloud resource pool and the third-level cloud resource pool through optical fibers, and all service systems belong to the same network plane.
Preferentially, in the distributed central station-based integrated urban rail cloud architecture system, the central management platform of the primary cloud resource pool is used for docking the cloud management platform API of the secondary cloud resource pool through the SSO technology, so that the functions of controlling, monitoring, managing and the like of the station resources by the center are realized.
Preferentially, the distributed central station-based integrated urban rail cloud architecture system is characterized in that the secondary cloud resource pool performs resource management, monitoring and control on the station and stations of the tertiary resource pool controlled by the secondary cloud resource pool through a service ring network.
Preferentially, in the distributed central station-based integrated urban rail cloud architecture system, professional IP addresses on the cloud are all planned within the same network segment range and used for realizing cross-station migration of virtual machines, and meanwhile, traffic among services is limited and isolated by an SDN network, so that safety and independence of service traffic are guaranteed.
Preferentially, the distributed central station-based integrated urban rail cloud architecture system divides the available domain and the fault domain range into an intra-station level and a cross-station level, wherein the intra-station level is an intra-station migration strategy triggered when part of nodes of the station fail; the cross-site migration is a cross-site migration strategy triggered when all the computing nodes of the site fail.
Preferentially, in the distributed central station-based integrated urban rail cloud architecture system, the three-level cloud resource pool stores data in a linked list form, the data is backed up among different non-centralized stations, and linked list addressing is adopted among different non-centralized stations.
Therefore, the invention has the advantages that: the scheme breaks through the traditional cloud platform construction idea and structure and the construction scheme of the transmission system, can effectively combine the edge cloud network and the transmission network to construct an integral line network, reduces the number of transmission devices, the number of cloud platform management devices, network optimization management and the like, and effectively reduces the construction cost of the transmission and cloud platforms.
Drawings
The accompanying drawings, which are incorporated herein and form a part of the specification, illustrate embodiments of the present invention and, together with the description, further serve to explain the principles of the invention and to enable a person skilled in the pertinent art to make and use the disclosure.
FIG. 1 illustrates an overall architectural diagram in an embodiment of the present invention;
FIG. 2 illustrates a network traffic diagram in an embodiment of the invention;
FIG. 3 illustrates a schematic diagram of a linked list of stored copies in an embodiment of the invention;
embodiments of the present invention will be described with reference to the accompanying drawings.
Detailed Description
Examples
The embodiment firstly provides a distributed central station integrated urban rail cloud architecture system.
In the aspect of calculation, the management and calculation of most stations are separated, and the fault of all calculation nodes of a single station can meet the requirement of cross-station migration; in the aspect of storage, a 2+1 storage mode of the local station and the adjacent station is realized, and the data security can be effectively provided. In the aspect of network, the original transmission ring network established among stations is changed into the transmission ring network established among main stations, and the business ring network is established among the stations, so that the reuse rate of equipment can be effectively increased, the transmission construction cost is reduced, and the like.
Fig. 1 is a schematic diagram of the overall architecture of the present embodiment.
The scheme mainly comprises three levels and two types of networks in a cloud platform architecture. The three levels are defined according to physical roles and comprise a first-level cloud resource pool of the center, a second-level cloud resource pool of the centralized station and a third-level cloud resource pool of the non-centralized station. And the two types of networks comprise a transmission ring network between the center and the station cloud platform and a service ring network between the secondary cloud resource pool and the affiliated tertiary cloud resource pool.
The transmission ring network, also called integrated bearer network, is used for rail transit operation and management services, and in order to ensure the normal operation of rail transit, the system must have the traditional function of quickly, accurately and reliably transmitting various information required by rail transit operation and management, including but not limited to transmitting various digital signals for public affairs and special telephone systems. The method comprises the steps that a soft switch core equipment control center dispatcher communicates with a station attendant and voice signals of direct calls related to traveling between adjacent stations of the station and in the station; and transmitting video images and control signals among stations, vehicle sections/parking lots and control centers.
The service ring network, also called a cloud platform network, is a cross-station large two-layer network structure formed by communicating switches between a second-level cloud resource pool and a third-level cloud resource pool through optical fibers, and all service systems belong to the same network plane. The ring network is used for providing communication between the area cloud platforms and exclusive channels for communication between other station service systems and from each station to the center.
A first-level cloud resource pool is deployed in the center, resources such as calculation, storage and the like are provided for the core service of the whole line as required, and normal operation of the service is guaranteed. Meanwhile, the central management platform is used for butt joint of cloud management platform APIs of the secondary cloud resource pool through an SSO technology, and functions of controlling, monitoring, managing and the like of the center on station resources are achieved.
The secondary resource pool provides functions of management, calculation, network, storage and the like, and the tertiary resource pool provides functions of calculation, network, storage and the like. The system comprises a plurality of stations, a secondary cloud resource pool, a primary network, a secondary network and a tertiary network, wherein the secondary cloud resource pool manages, monitors and controls resources of the station and the stations of other governed tertiary resource pools through a service ring network, the secondary cloud resource pool and the tertiary cloud resource pool are integrally connected through the large secondary network, migration of virtual machines in the stations and between the stations can be provided, the number of management nodes and complexity of traditional network planning can be effectively reduced through the framework design, the stations are further high in reliability, and meanwhile cost can be effectively reduced. The scheme belongs to a management, calculation and storage fusion scheme, and in order to ensure the effectiveness and the availability of CPU and memory resources required by related services, the container mode is adopted to deploy the services to meet the resource isolation requirement.
In network planning, a two-level resource pool (centralized station) and N three-level resource pools (unconcentrated stations) form the same two-level network, professional IP addresses in the 1+ N resource pools are planned within the range of the same network segment, so that cross-station migration of virtual machines can be realized, flow among services is limited and isolated by adopting an SDN network, and safety and independence of service flow are guaranteed. Due to the adoption of the edge distributed cluster scheme, network nodes are not independently arranged, and the phenomenon that the flow in the east-west direction and the flow in the south-north direction pass through the network nodes to form a bottleneck and a single point fault is avoided. Therefore, the cloud platform of the scheme needs to adopt the SDN scheme of dvr (distributed virtual router). Therefore, the flow inside the virtual machine can be ensured to be directly communicated among the computing nodes without being communicated through a specific network node, and single-point faults and bottlenecks are avoided. The flow of the access center of each station belonging to the area is communicated with the center through the service ring network and the transmission ring network of the secondary resource pool.
As it relates to cross-site migration, the usable and fault domain scope is divided into level 2, intra-site level and cross-site level. The intra-site level is an intra-site migration policy triggered when a partial node of the site fails. Cross-site migration is a cross-site migration policy that is triggered when all of the site compute nodes fail.
The storage copy is in a 3-copy mode, namely a 2+1 mode on the logic setting. The architecture on storage is designed as follows: one secondary resource pool and N tertiary resource pools are set in a linked list form on a storage rule, namely, the station stores 2 copies, the next node of the linked list stores 1 copy, and the data of the Nth node stores the first node. The storage path of the linked list is shown in FIG. 3. Due to the fact that cross-DC storage is involved, fault domains and data redundancy selection strategies are set and achieved by adjusting a bus algorithm of distributed storage.
According to the scheme, the traditional cloud platform construction idea and structure and the construction scheme of the transmission system are broken through, the edge cloud network and the transmission network can be effectively combined to construct the whole line network, the number of transmission devices, the number of cloud platform management devices, network optimization management and the like are reduced, and the construction cost of the transmission and cloud platform is effectively reduced.
It is noted that references in the specification to "one embodiment," "an example embodiment," "some embodiments," etc., indicate that the embodiment described may include a particular feature, structure, or characteristic, but every embodiment may not necessarily include the particular feature, structure, or characteristic. Moreover, such phrases are not necessarily referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is submitted that it is within the knowledge of one skilled in the art to effect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.
The previous description of the disclosure is provided to enable any person skilled in the art to make or use the disclosure. Various modifications to the disclosure will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other variations without departing from the spirit or scope of the disclosure. Thus, the disclosure is not intended to be limited to the examples and designs described herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (4)
1. The utility model provides an integrative city rail cloud architecture system of central station based on distribution which characterized in that includes:
The first-level cloud resource pool is used for providing computing, network and storage resource requirements for the core service of the whole line as required and ensuring the normal operation of the service;
the secondary cloud resource pool is arranged in the centralized station and used for providing management, calculation, network and storage functions;
the three-level cloud resource pool is arranged in the non-centralized station and used for providing computing, network and storage functions;
the primary cloud resource pool and the secondary cloud resource pool are connected through a comprehensive bearing network; the second-level cloud resource pool is connected with the third-level cloud resource pool through a service ring network; the service ring network is a cross-station large two-layer network structure formed by communicating switches between the second-level cloud resource pool and the third-level cloud resource pool through optical fibers, and all service systems belong to the same network plane; the ring network is used for providing communication between regional cloud platforms and exclusive channels for communication between other station service systems and from each station to a center; the three-level cloud resource pool stores data in a linked list form, the data are backed up among different non-centralized stations, and linked list addressing is adopted among the different non-centralized stations;
professional IP addresses on the cloud are planned to be within the same network segment range and used for achieving cross-station migration of the virtual machines, and meanwhile flow among services is limited and isolated through an SDN network, so that safety and independence of service flow are guaranteed.
2. The distributed central station integrated urban rail cloud architecture system based on claim 1 is characterized in that the central management platform of the primary cloud resource pool is used for docking the cloud management platform API of the secondary cloud resource pool through an SSO technology, so that the control, monitoring and management functions of the center on station resources are realized.
3. The system of claim 1, wherein the secondary cloud resource pool manages, monitors and controls resources of the station and stations belonging to the tertiary resource pool through a service ring network.
4. The distributed central station-based integrated urban rail cloud architecture system according to claim 1, wherein the available domain and the fault domain range are divided into an intra-station level and an inter-station level, and the intra-station level is an intra-station migration strategy triggered when part of nodes of a station fail; the cross-site level is a cross-site migration policy triggered when all of the compute nodes of a site fail.
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