Network automatic train supervision system for urban rail transit based on cloud platform

Abstract

The present invention relates to a network automatic train supervision (NATS) system for urban rail transit based on a cloud platform, the NATS system is disposed in a network center cloud platform to collect line ATS data for analysis and provide a network operation management function; and the NATS system has functions of running command, operation index analysis, fully automated mapping, network and line collaborative command, transport organization, and aided decision. Compared with the prior art, the present invention has an advantage that information about full-road networks is displayed for large cities, so that the network center performs overall operation command and dispatching for the cities.

What is claimed is: 
     
         1 . A network automatic train supervision (NATS) system for urban rail transit based on a cloud platform, wherein the NATS system is disposed in a network center cloud platform to collect line ATS data for analysis and provide a network operation management function; and the NATS system has functions of running command, operation index analysis, fully automated mapping, network and line collaborative command, transport organization, and aided decision. 
     
     
         2 . The NATS system for urban rail transit based on a cloud platform according to  claim 1 , wherein a cloud platform is designed for the NATS system, a virtual data center (VDC) and virtual private cloud (VPC) are designed, the cloud platform transforms physical resources into a virtual pool through the VDC, and flexibly allocates a data center in different logical isolation manners, and a resource pool in the VDC is divided into the VPC, thereby achieving unified deployment of system resources. 
     
     
         3 . The NATS system for urban rail transit based on a cloud platform according to  claim 2 , wherein the VDC is divided based on specialties or urban lines. 
     
     
         4 . The NATS system for urban rail transit based on a cloud platform according to  claim 1 , wherein a full-line data center is designed for the NATS system, to bear computing and storage resources required by center-level hardware of each specialized system, and the capacity of a data sharing center meets requirements for subsequent line expansion. 
     
     
         5 . The NATS system for urban rail transit based on a cloud platform according to  claim 1 , wherein a workstation is disposed for the NATS system, a desktop cloud is used for the workstation, all software runs on a cloud desktop server, a result is displayed on a desktop cloud workstation, the desktop cloud is divided into a service network, a storage network, and a management network as needed, and the networks are logically isolated. 
     
     
         6 . The NATS system for urban rail transit based on a cloud platform according to  claim 1 , wherein configuration of the NATS system accessing to a cloud platform network meets the following requirements:
 the NATS system is born in a safety production network;   NATS networks are redundant and logically isolated from each other, and the bandwidth of a single network is not less than 100 M;   the NATS networks are in a ring network, and a single point of failure in the networks does not affect system running; and   end-to-end maximum network delay is less than 50 ms, and maximum switch handover delay is less than 50 ms.   
     
     
         7 . The NATS system for urban rail transit based on a cloud platform according to  claim 1 , wherein devices of the NATS system deployed in the cloud platform comprise:
 a virtual NATS interface server, a virtual NATS application server, a virtual NATS database server, a virtual switch, and a virtual Ethernet, wherein the virtual NATS interface server, the virtual NATS application server, the virtual NATS database server, and the virtual switch are all configured with dual-machine hot standby redundancy.   
     
     
         8 . The NATS system for urban rail transit based on a cloud platform according to  claim 1 , wherein the NATS system is logically divided into an interface layer, a platform layer, and an application layer. 
     
     
         9 . The NATS system for urban rail transit based on a cloud platform according to  claim 8 , wherein the interface layer comprises:
 interfacing with a network center/line CATS system to process and upload information of all specialties integrated and interconnected in the network center/line based on an access standard of the NATS system; and   interfacing with a data sharing center to upload all line CATS information data collected by the NATS system to the data sharing center, and upload processed running graph data and running index data in the format required by the data sharing center.   
     
     
         10 . The NATS system for urban rail transit based on a cloud platform according to  claim 8 , wherein the platform layer is a service logic processing layer, comprising a real-time database, a historical database, a logical processing engine, and an intelligent analysis engine, and configured to perform specific logic analysis and processing on collected line-side ATS data and send a result to the application layer. 
     
     
         11 . The NATS system for urban rail transit based on a cloud platform according to  claim 8 , wherein the application layer comprises:
 a full-road network graph display module, configured to display all rail transit lines planned locally in one window, which is implemented in the form of a vector graph;   a station-yard graph display module, configured to display tracks, turnouts, signals, static position information, and other information that needs to be displayed on a station-yard graph interface, so that a dispatcher can understand a real-time signal device status on site;   a train running information display module, configured to display train running information, comprising a train identification number, a train destination number, a train arrival status, a train detaining status, a train tripping status, train location information, a train tracking mode, a train driving mode, and a train door status;   a running graph display module, configured to display a running graph in a graphic interface, where data of a planned running graph and an actual running graph uploaded by lines are stored by the NATS system and displayed on a running graph interface for the dispatcher to view a running condition of a train, and the actual running graph is refreshed in real time as the train runs;   an alarm event display module, configured to view, in real time in an alarm graph of a system, an alarm occurring in the lines;   an operation index analysis and display module, configured to analyze and calculate running-related operation indexes based on the data of the planned running graph and actual running graph collected from the lines, and then display operation indexes on a user interface;   a statistical report query module, configured to query and display commonly used statistical information and alarm event information for the dispatcher to view the statistical information and analyze historical data; and   a play back module, configured to play back historical operation information of the system for historical running condition viewing or troubleshooting analysis.   
     
     
         12 . The NATS system for urban rail transit based on a cloud platform according to  claim 11 , wherein the playback module during running directly reads a playback data file recorded by an application server software during running, is capable of switching the lines to view play back information of different lines, and allows a user to control a playback speed and quickly locate time needed for playback by dragging a time scrollbar.