Digital monitoring operation system for rail transit station

Abstract

The invention relates to a rail transit station digital monitoring operation system comprising a station layer comprising a station internet of things network, a station digital operation platform and station digital application software, the station internet of things network takes a multifunctional controller and an internet of things looped network node as a core to construct a station equipment access network, and the station equipment access network is connected with the station digital operation platform; the station digital operation platform realizes station field data acquisition and equipment control, the station digital operation platform takes a station server as a core and provides pooling ICT resource management and virtual host service, and the station digital application software is loaded on the station digital operation platform; the field layer comprises a monitoring object and an intelligent terminal; wherein the station layer constructs a station-level star local area network by taking a station service switch as a center, and the station service switch realizes communication connection with the line network production cloud platform through a backbone transmission network. The system can quickly respond to field changes, and the real-time performance and flexibility of data acquisition are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of rail transit monitoring and management, and in particular to a digital monitoring and operation system for a rail transit station. Background Art

[0002] The automated monitoring of the station electromechanical system generally uses a wired network to connect wired sensors, instruments, electromechanical equipment and other field equipment to the monitoring room to achieve data collection and display. However, due to the limitations of the traditional system architecture, hardware configuration, field conditions and other specific conditions, there are still certain limitations in the real-time, flexibility and intelligence of data collection. The system is generally difficult to integrate, there are data islands, and the maintenance is complex. At the same time, the field control layer of the traditional monitoring system mainly uses commercial programmable logic controller (PLC) products to connect sensors and actuators and execute pre-edited control logic. The disadvantages of hardware PLCs are mainly cost and flexibility, that is, the procurement and maintenance costs of hardware PLCs are high, the space occupied is large, and the scalability is limited. Its programming and upgrades are relatively complex, and the update cycle is long. The system integration and interoperability of hardware PLCs are not flexible, and it is not easy to adapt to rapidly changing technical requirements and complex network environments. Therefore, it needs to be improved. Summary of the invention

[0003] Based on this, it is necessary to provide a digital monitoring and operation system for rail transit stations, which is aimed at the problems that the real-time, flexibility and intelligence of traditional station electromechanical system data collection still have certain limitations, the system is generally difficult to integrate, data islands are prone to occur, and maintenance is complex. At the same time, the field control layer of the traditional monitoring system mainly uses PLC to connect sensors and actuators, which is costly, inflexible in integration and interoperability, and difficult to adapt to rapidly changing technical requirements and complex network environments.

[0004] The present invention provides a rail transit station digital monitoring and operation system, comprising: The station layer is used to support the monitoring and operation and maintenance of rail transit station equipment, and includes a station IoT network, a station digital operation platform and a station digital application software. The station IoT network is based on a multi-function controller and IoT ring network nodes to build a station equipment access network to achieve station site data collection and equipment control. The station digital operation platform is based on a station server to provide pooled ICT resource management and virtual host services. The station digital application software is carried on the station digital operation platform; The field layer includes monitoring objects and intelligent terminals. The monitoring objects are electromechanical equipment, environmental instruments and passenger flow at the station site. Among them, the station layer constructs a station-level star-shaped local area network with the station business switch as the center, and the station business switch realizes communication connection with the line network production cloud platform through the backbone transmission network.

[0005] In one embodiment, the station IoT network includes a multi-function controller, an IoT ring network and an IoT module. The IoT module is connected to the device through an IoT switch, and the station on-site electromechanical equipment or smart terminal is directly connected to the multi-function controller.

[0006] In one embodiment, the multifunctional controller has a bottom-level development module and an upper-level development module. The bottom-level development module is used to realize the functional development and asynchronous function of the PLC functional module. The bottom-level development module includes arithmetic function, logic function and timing function. The upper-level development module is a modular development based on object-oriented equipment monitoring logic. The upper-level development module includes a control module and a linkage module.

[0007] In one embodiment, the multifunctional controller has a data communication function with each RIO module and a data logic operation function.

[0008] In one embodiment, the station Internet of Things network has a network layer and a processing layer. The network layer provides a communication transmission channel for the station's on-site electromechanical equipment to access the station Internet of Things network. The processing layer is centered on a multi-functional controller and provides communication processing capabilities such as station equipment access, logic control, linkage control, protocol conversion, data cache forwarding, etc.

[0009] In one embodiment, the station digital operation platform has an infrastructure layer, a platform service layer and a business application layer. The infrastructure layer takes the station server as the core and provides pooled ICT resource management and virtual host services. The platform service layer includes general capability services and special capability services. The general capability services include database services, message queue services, reverse proxy services, and high availability services. The special capability services include equipment monitoring services, video monitoring services, and audio and video information services. The business application layer includes station digital monitoring applications, station digital operation and maintenance applications, and station digital management applications.

[0010] In one of the embodiments, the station digital operation platform includes a station server, a station business switch, a duty officer workstation and a network printer. The station server adopts a hyper-converged basic configuration, the station server supports plug-and-play high-performance hardware, and the station business switch adopts a 10 Gigabit configuration.

[0011] In one embodiment, the multi-function controller, station server and station service switch all adopt a redundant architecture.

[0012] In one embodiment, the station digital operation platform provides data and services of MQTT protocol interface and RestfulAPI interface, and the station digital operation platform has a graphical application development environment.

[0013] In one embodiment, the station digital application software adopts a B / S architecture, and the station digital application software interacts with a central operation control system to receive control commands and coordinate equipment operation. The station digital application software has a monitoring module, an alarm module and a communication detection module. The communication detection module adopts the SNMP protocol, and the SNMP protocol uses MIB to manage network information through UDP communication.

[0014] The above-mentioned rail transit station digital monitoring and operation system has optimized the technical architecture through customized multi-function controllers, IoT ring networks and nodes, built an edge system that is more suitable for cloud architecture, reduced integration difficulty and maintenance costs, reduced the level of field equipment connected to the monitoring system, improved the field-level data preprocessing capabilities, facilitated rapid response to field changes, and improved the real-time and flexibility of data collection. At the same time, the station layer builds a station-level star-shaped local area network with the station business switch as the center, and the station business switch realizes communication connection with the line network production cloud platform through the backbone transmission network, which can effectively avoid the occurrence of data islands and facilitate adaptation to rapidly changing technical requirements and complex network environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 It is a schematic diagram of the structure of a digital monitoring and operation system for a rail transit station in an embodiment; Figure 2 is a schematic diagram of a station layer structure in an embodiment; Figure 3 Schematic diagram of the station Internet of Things network structure in one embodiment; Figure 4 It is a schematic diagram of the structure of a station digital operation platform in one embodiment; Figure 5 A schematic diagram of an infrastructure configuration structure in an embodiment.

[0017] Reference numerals: 100. Station level; 110. Station Internet of Things network; 120. Station digital operation platform; 130. Station digital application software; 200. Field level. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it may be directly on the other component or there may be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may be a central component at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the specification of the present invention are for illustrative purposes only and do not represent the only implementation method.

[0020] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0021] In the present invention, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first feature is directly in contact with the second feature, or the first feature and the second feature are indirectly in contact through an intermediate medium. Moreover, a first feature being “above”, “above” or “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below” or “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0022] Unless otherwise defined, all technical and scientific terms used in the specification of the present invention have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in the specification of the present invention includes any and all combinations of one or more related listed items.

[0023] The existing rail transit operation and management system adopts a two-level management system: central and station levels. The central-level functions include overall operation dispatching, emergency command, resource allocation and line management to ensure safe and efficient operation of the system; the station-level functions focus on daily operation management, passenger services, safety inspections and equipment maintenance within the station to ensure order and safety within the station.

[0024] As the main purpose of serving rail transit operations, the traditional automated monitoring system of station electromechanical equipment realizes the function of station-level operation monitoring. Most of them adopt a centralized architecture, and all types of data and information at all levels are collected on the station server for centralized management and maintenance.

[0025] At present, the data transmission path of the station-level electromechanical system generally adopts the mode from field equipment, field controller, front-end machine to station server. Field data such as electromechanical equipment status, environmental data, passenger flow, etc. are collected and processed by field controllers such as programmable controllers (PLCs) and remote terminals (RTUs). Serial communication networks and Ethernet data communications are used to forward field data to station servers through front-end machines for data storage and processing. In the station LAN, industrial computers complete human-computer interaction and realize control feedback, manual intervention and other functions of the monitoring system.

[0026] The automated monitoring of the station electromechanical system generally uses a wired network to connect wired sensors, instruments, electromechanical equipment and other field equipment to the monitoring room to achieve data collection and display. However, due to the existing system architecture, hardware configuration, field conditions and other specific conditions, there are still certain limitations in the real-time, flexibility and intelligence of data collection. At the same time, the system is generally difficult to integrate, there is a data island phenomenon, and the maintenance is complex.

[0027] The field control layer of traditional monitoring systems mainly uses commercial programmable logic controller (PLC) products to connect sensors and actuators and execute pre-edited control logic. The disadvantages of hardware PLCs are mainly cost and flexibility: hardware PLCs are expensive to purchase and maintain, occupy a large space, and have limited scalability. Their programming and upgrades are relatively complex, and the update cycle is long. The system integration and interoperability of hardware PLCs are not flexible, and they are not easy to adapt to rapidly changing technical requirements and complex network environments.

[0028] Therefore, the following combination Figure 1-Figure 5The digital monitoring and operation system of a rail transit station of the present invention is described.

[0029] like Figure 1 and Figure 2 As shown, in one embodiment, a digital monitoring and operation system for a rail transit station includes a station layer 100 and a field layer 200 .

[0030] The station layer 100 is used to support the monitoring and operation and maintenance management of rail transit station equipment, and includes a station Internet of Things network 110, a station digital operation platform 120 and a station digital application software 130. The station Internet of Things network 110 builds a station equipment access network with a multi-function controller and an Internet of Things ring network node as the core to realize station on-site data collection and equipment control. The station digital operation platform 120 takes the station server as the core to provide pooled ICT resource management and virtual host services. The station digital application software 130 is carried on the station digital operation platform 120.

[0031] Station layer 100, namely the station digital operation system, has unified data management and comprehensive business carrying capabilities, and is the edge node of the rail transit network production cloud platform.

[0032] The field layer 200 includes monitoring objects and intelligent terminals. The monitoring objects are the station site electromechanical equipment, environmental instruments and passenger flow.

[0033] Among them, the station layer 100 builds a station-level star-shaped local area network with the station business switch as the center. The station business switch realizes communication connection with the line network production cloud platform through the backbone transmission network.

[0034] It should be noted that the station's on-site electromechanical equipment includes station ventilation and air-conditioning equipment, environmental control electronic equipment, environmental sensors, water supply and drainage pumps, elevators and escalators, lighting equipment, etc.

[0035] The digital monitoring and operation system of rail transit stations has optimized the technical architecture through customized multi-function controllers, IoT ring networks and nodes, built an edge system that is more suitable for cloud architecture, reduced integration difficulty and maintenance costs, reduced the level of field equipment connected to the monitoring system, and improved the field layer 200 data pre-processing capabilities, facilitating rapid response to field changes, and improving the real-time and flexibility of data collection. At the same time, the station layer 100 builds a station-level star-shaped local area network with the station business switch as the center, and the station business switch realizes communication connection with the line network production cloud platform through the backbone transmission network, which can effectively avoid the occurrence of data islands and facilitate adaptation to rapidly changing technical requirements and complex network environments.

[0036] It should be noted that the digital monitoring and operation system of rail transit stations receives central-level control instructions through the line network layer to process more complex calculations, such as algorithm prediction. The line network layer mainly includes the line network production cloud and line network-level digital applications.

[0037] In this embodiment, see Figure 3 The station IoT network 110 includes a multi-function controller, an IoT ring network and an IoT module. The IoT module is connected to the device through an IoT switch, and the on-site electromechanical equipment or smart terminal of the station is directly connected to the multi-function controller.

[0038] The IoT ring network and nodes use industrial IoT protocol connection methods, such as MQTT protocol, industrial Ethernet, etc., which improves the standardization level of signal access.

[0039] It is convenient to flatten the system architecture, simplifying the original three-layer architecture to a two-layer architecture, reducing the physical layer and improving transmission efficiency.

[0040] In this embodiment, the multifunctional controller has a bottom-level development module and an upper-level development module. The bottom-level development module is used to realize the functional development and asynchronous function of the PLC functional module. The bottom-level development module includes arithmetic function, logic function and timing function. The upper-level development module is a modular development based on object-oriented equipment monitoring logic. The upper-level development module includes a control module and a linkage module.

[0041] It should be noted that the multi-function controller has the data communication function and data logic operation function with each RIO (Remote I / O) module.

[0042] In this embodiment, the station Internet of Things network 110 has a network layer and a processing layer. The network layer provides a communication transmission channel for the station's on-site electromechanical equipment to access the station Internet of Things network 110. The processing layer is centered on a multi-functional controller and provides communication processing capabilities such as station equipment access, logic control, linkage control, protocol conversion, and data cache forwarding.

[0043] The multi-function controller integrates the functions of the field controller, gateway, front-end and other devices in the traditional field equipment. Through the IoT ring network and nodes, the information of the field equipment, environmental instruments, passenger flow and other monitoring objects or smart terminals of the field layer 200 is directly transmitted to the multi-function controller. The development of the multi-function controller is mainly aimed at two levels. The bottom layer is the functional development of the PLC function module and the realization of asynchronous functions, including arithmetic functions, logic functions, timing functions, etc.; the upper layer is the modular development of the object-oriented equipment monitoring logic, which is convenient for subsequent secondary development and rapid deployment, including control modules, linkage modules, etc. At the same time, the multi-function controller is used to replace the original PLC, providing data communication functions between each RIO module, as well as data logic operation functions.

[0044] In this embodiment, see Figure 4 The station digital operation platform 120 has an infrastructure layer, a platform service layer and a business application layer. The infrastructure layer is centered on the station server and provides pooled ICT resource management and virtual host services. The platform service layer includes general capability services and special capability services. The general capability services include database services, message queue services, reverse proxy services, and high availability services. The special capability services include equipment monitoring services, video monitoring services, and audio and video information services. The business application layer includes station digital monitoring applications, station digital operation and maintenance applications, and station digital management applications.

[0045] The station digital operation platform 120 is responsible for equipment access, data aggregation and processing, and comprehensive business operations in the digital monitoring and operation system of rail transit stations. It is a support platform for station equipment monitoring and operation and maintenance management, and an edge node of the rail transit line network industrial control cloud platform.

[0046] In this embodiment, the station digital operation platform 120 includes a station server, a station business switch, a duty officer workstation and a network printer. The station server adopts a hyper-converged basic configuration, supports plug-and-play high-performance hardware, and the station business switch adopts a 10 Gigabit configuration.

[0047] The station server adopts a hyper-converged basic configuration, integrating virtual computing, storage and network resources into a single system, realizing centralized management and dynamic allocation of resources, and improving the utilization efficiency of computing resources and the matching efficiency of storage resources.

[0048] In this embodiment, the multi-function controller, station server and station business switch all adopt a redundant architecture, which is convenient for improving the reliability and availability of the system, so that any single point network failure or any single device failure will not affect the normal monitoring and management functions of the system.

[0049] In this embodiment, the station digital operation platform 120 provides data and services of the MQTT protocol (Message Queuing Telemetry Transport) interface and the Restful API interface, and the station digital operation platform 120 has a graphical application development environment.

[0050] In one embodiment, the station digital application software 130 adopts a B / S architecture (Browser / Server mode). The station digital application software 130 interacts with the central operation control system to receive control commands and coordinate equipment operation. The station digital application software 130 has a monitoring module, an alarm module and a communication detection module. The communication detection module adopts the SNMP protocol (Simple Network Management Protocol). The SNMP protocol uses MIB (Management Information Base) to manage network information through UDP (User Datagram Protocol) communication.

[0051] SNMP uses UDP to communicate to reduce network bandwidth consumption and latency, and uses MIB to organize and manage network device status information. The SNMP manager obtains real-time data from devices by reading MIB objects, and can also change device configurations by modifying MIB objects, thereby achieving network monitoring and management purposes.

[0052] The specific application scenarios are as follows: The construction of a typical rail transit station digital monitoring and operation system platform starts from ICT infrastructure and configuration, platform service development and customized business application implementation.

[0053] ICT infrastructure and configuration see Figure 5 The core of the station ICT infrastructure consists of a station server group and a station service switch. The server group uses virtualization technology to build an ICT resource pool to support business computing services and station integrated applications. These servers have storage, computing and transmission functions, are equipped with hyper-converged platform management software, and support plug-and-play high-performance hardware. The service switch adopts a 10G configuration and serves as a LAN center device. It optimizes the topology and fault response through VSU network virtualization technology.

[0054] The infrastructure uses three upgraded old devices to form a three-node hyper-converged platform, providing pooled resource management and virtual machine services, with elastic capabilities for business expansion and upgrades. The server configuration includes multi-core processors, large-capacity memory, and support for various types of storage devices to ensure high performance and compatibility. The network nodes use high-speed switching devices to achieve low-latency and high-bandwidth communication, ensuring high-speed data exchange and high availability of the system.

[0055] The platform service layer is the component of the system that provides a programming environment and deployment platform, which allows developers to build, deploy, and run applications in the cloud without having to manage the underlying hardware and operating system. The platform service layer provides a variety of services and tools, such as database management, development tools, business analysis, and application monitoring.

[0056] Taking the equipment monitoring service as an example, the specific functional implementation of the platform-specific service is described in detail. The equipment monitoring service aims to monitor the operating status of station equipment, serves the digital monitoring application of the station, and provides the collection, processing and aggregation functions of all structured data of the station. The equipment monitoring service includes multiple key functional modules, such as data processing, control strategy, alarm management, data management, time synchronization, authority management, self-diagnosis and recovery, redundant switching and log management, etc. The specific equipment monitoring service functions are as follows: 1. Data processing: The system provides a unified data management and storage platform that supports various types of data, including structured, semi-structured and unstructured data. This makes data integration, extraction, conversion and loading efficient, while supporting complex data processing and analysis.

[0057] 2. Control: The system has a variety of control modes, including single-point control (basic remote control), mode control, program control, limit point setting, schedule scheduling and linkage control. These control modes enhance the system's ability to accurately control the operating status of on-site equipment or systems, and achieve effective management of complex operating environments.

[0058] 3. Alarm management: The system has a complete alarm management mechanism and adopts multiple alarm methods (sound, list display, flashing, printing, archiving, etc.) to ensure that maintenance personnel and operators are notified quickly and effectively in emergency situations.

[0059] 4. Data management: The system supports the storage of multiple data types (integer, Boolean, floating point, character, etc.), and has the ability to process structured data, Key-Value structured data and time series data. Advanced features include multi-data copy management, cluster high availability support, TB-level data storage and cluster horizontal expansion capabilities.

[0060] 5. Time synchronization: The system can receive external timing signals to ensure time synchronization between stations and terminal equipment and professional systems, and improve the accuracy and consistency of time-sensitive operations.

[0061] 6. Authority management: The system provides different levels of operation authority for different categories of personnel through a combination of user type, user name and password, which enhances the security management function of the system and prevents unauthorized access and operation.

[0062] 7. Self-diagnosis and self-recovery: The system has the function of automatically detecting hardware and software status, and can automatically recover after power outage or system failure, reducing system downtime and ensuring service continuity.

[0063] 8. Redundant switching: Key equipment and networks use hot standby redundant configuration, which can automatically switch to backup equipment or network when the main equipment or network fails, ensuring high availability and reliability of the system.

[0064] 9. Log management: The system's log management is responsible for recording all operations and system status, supporting system recoverability and traceability analysis of the operation process. It is an indispensable tool for troubleshooting and system optimization.

[0065] The comprehensive application development functions are as follows: 1. Data service: The station digital operation platform 120 provides general data services, provides data support for third-party application development, and provides data and services of MQTT protocol interface and Restful API interface.

[0066] 2. Graphic configuration service: Provide a WYSIWYG graphical application development environment, providing convenient conditions for iterative upgrades and operation and maintenance management of application systems.

[0067] 3. Cloud resource monitoring and management applications: Cloud resource monitoring and management applications provide online monitoring functions for physical resources and logical resources, and monitor the usage of pooled resources and virtual host resources in real time. When the virtual host resource usage exceeds the threshold, resource warnings should be provided. Computing virtualization, network virtualization, storage virtualization and online monitoring functions are provided.

[0068] Cloud resource monitoring and management applications mainly involve the platform architecture part, see Figure 4 , from bottom to top, it includes the infrastructure layer, platform service layer, and business application layer.

[0069] The infrastructure layer is based on the hyper-converged infrastructure, providing the underlying hardware and virtualization resources of the entire cloud platform and monitoring system, and is the basis for all other layers. This layer includes the configuration of physical and virtualized resources, network and storage infrastructure, etc. The data collection agents deployed in physical servers and virtual machines are used to collect various resource utilization data of the system (CPU, memory, network bandwidth, etc.).

[0070] The platform service layer is responsible for managing the resources of the infrastructure layer and providing necessary service support for the application layer. Among them, cloud resource monitoring-level management applications include: data processing and storage services, monitoring and alarm management services, and related middleware services, which are responsible for data collection, cleaning, analysis, alarms, and visualization interfaces.

[0071] The business application layer is the layer that directly interacts with users, providing system administrators and monitoring personnel with an operation interface for accessing the monitoring platform, viewing resource status, and managing alarms. The application layer provides the user interface and related management applications, providing end users (such as system administrators) with intuitive system health status and monitoring operation functions.

[0072] 4. Station-level integrated monitoring and management application: The station digital application software 130 adopts B / S architecture to realize the unification and reuse sharing of application software resources across the entire network, realize the station-level electromechanical equipment monitoring system function and the station-level integrated monitoring system, and has the ability to fully perceive the status of management objects such as station equipment, environment, passenger flow, and multi-source heterogeneous data fusion processing, supporting station facility and equipment management, passenger transport management, safety management and other businesses.

[0073] The system is responsible for collecting and recording the operating status, parameters and fault alarm information of various electromechanical equipment in the station (such as ventilation and air conditioning, lighting equipment, elevators, escalators, etc.). Through the multi-function controller, the system monitors and controls the environmental control equipment, water supply and drainage, lighting and vertical transportation equipment in the station in real time. In addition, the system can monitor environmental parameters such as temperature and humidity, execute contingency functions to deal with special conditions (such as fire, accidents), and interact with the central operation and control system (CIOS) to receive control commands and coordinate equipment operation. The system has an audible and visual alarm function, which can automatically pop up the alarm screen, confirm and process the alarm, give priority to fire alarms, and monitor the communication quality, including "communication failure" detection and alarm.

[0074] Communication quality detection is mainly achieved through SNMP. The SNMP protocol communicates through UDP and uses MIB to manage network information. Its main functions include monitoring network performance, detecting network failures, and configuring the network. SNMP consists of a management station and an agent: the management station collects and processes information from each node and feeds it back to the administrator; the agent runs on each network node and is responsible for statistics and reporting node information. Communication failure can be determined by the device sending an SNMP trap notification or the management station not receiving multiple responses from the device. After the device communication fails, the administrator sets the alarm point and outputs an alarm to the HMI. Through SNMP, the management station can monitor the device status in real time, such as CPU utilization, memory, throughput, latency, etc., to evaluate the communication quality of the device.

[0075] The electromechanical system of a rail transit station covers multiple functional modules such as power, ventilation, lighting, fire protection, security, and broadcasting. Through intelligent monitoring and control systems, efficient operation of various functions in the station is achieved, ensuring the safety and comfort of passengers.

[0076] On the one hand, the digital monitoring and operation system of rail transit stations reduces the level of electromechanical integration systems, effectively reduces the communication load of centralized transmission, enhances the ability of front-end equipment to process information in real time, and optimizes the computing power configuration; on the other hand, it provides customized core edge node equipment with functions that are more adaptable to different operational needs, while increasing investment in domestic core equipment, increasing the share of independently owned equipment, and reducing the overall hardware cost of the monitoring system.

[0077] Taking a typical station as an example, the effects of this invention are multifaceted. From an economic perspective, the construction cost of the station electromechanical system can be saved by about 30%; from a technical perspective, the further integration of front-end functions and the further standardization of IoT protocols reduce the barriers to conversion between different protocols; at the same time, from a project implementation perspective, the communication, management and labor costs of different interfaces are greatly saved, improving efficiency.

[0078] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0079] The above-described embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A digital monitoring and operation system for rail transit stations, characterized in that: include: The station layer is used to support the monitoring and operation and maintenance of rail transit station equipment, and includes a station IoT network, a station digital operation platform and a station digital application software. The station IoT network is based on a multi-function controller and IoT ring network nodes to build a station equipment access network to achieve station site data collection and equipment control. The station digital operation platform is based on a station server to provide pooled ICT resource management and virtual host services. The station digital application software is carried on the station digital operation platform; The field layer includes monitoring objects and intelligent terminals. The monitoring objects are electromechanical equipment, environmental instruments and passenger flow at the station site. Among them, the station layer constructs a station-level star-shaped local area network with the station business switch as the center, and the station business switch realizes communication connection with the line network production cloud platform through the backbone transmission network.

2. The rail transit station digital monitoring and operation system according to claim 1 is characterized in that: The station Internet of Things network includes a multi-function controller, an Internet of Things ring network and an Internet of Things module. The Internet of Things module is connected to the device through an Internet of Things switch, and the station on-site electromechanical equipment or smart terminal is directly connected to the multi-function controller.

3. The rail transit station digital monitoring and operation system according to claim 2 is characterized in that: The multifunctional controller has a bottom-level development module and an upper-level development module. The bottom-level development module is used to realize the functional development and asynchronous function of the PLC functional module. The bottom-level development module includes arithmetic function, logic function and timing function. The upper-level development module is a modular development based on object-oriented equipment monitoring logic. The upper-level development module includes a control module and a linkage module.

4. The rail transit station digital monitoring and operation system according to claim 3 is characterized in that: The multifunctional controller has a data communication function with each RIO module and a data logic operation function.

5. The rail transit station digital monitoring and operation system according to claim 2 is characterized in that: The station Internet of Things network has a network layer and a processing layer. The network layer provides a communication transmission channel for the station's on-site electromechanical equipment to access the station Internet of Things network. The processing layer is centered on a multi-functional controller and provides communication processing capabilities such as station equipment access, logic control, linkage control, protocol conversion, data cache forwarding, etc.

6. The rail transit station digital monitoring and operation system according to claim 5 is characterized in that: The station digital operation platform has an infrastructure layer, a platform service layer and a business application layer. The infrastructure layer takes the station server as the core and provides pooled ICT resource management and virtual host services. The platform service layer includes general capability services and special capability services. The general capability services include database services, message queue services, reverse proxy services, and high availability services. The special capability services include equipment monitoring services, video monitoring services, and audio and video information services. The business application layer includes station digital monitoring applications, station digital operation and maintenance applications, and station digital management applications.

7. The rail transit station digital monitoring and operation system according to claim 6 is characterized in that: The station digital operation platform includes a station server, a station business switch, a duty officer workstation and a network printer. The station server adopts a hyper-converged basic configuration, supports plug-and-play high-performance hardware, and the station business switch adopts a 10 Gigabit configuration.

8. The rail transit station digital monitoring and operation system according to claim 7 is characterized in that: The multi-function controller, station server and station service switch all adopt a redundant architecture.

9. The rail transit station digital monitoring and operation system according to any one of claims 1 to 8, characterized in that: The station digital operation platform provides data and services of MQTT protocol interface and Restful API interface, and the station digital operation platform has a graphical application development environment.

10. The rail transit station digital monitoring and operation system according to claim 9, characterized in that: The station digital application software adopts a B / S architecture. The station digital application software interacts with the central operation control system to receive control commands and coordinate equipment operation. The station digital application software has a monitoring module, an alarm module and a communication detection module. The communication detection module adopts the SNMP protocol. The SNMP protocol uses MIB to manage network information through UDP communication.

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