Urban rail vehicle door system simulation integrated scheduling method, device and equipment and storage medium

Abstract

The invention discloses an urban rail vehicle door system multi-scale heterogeneous digital twin model simulation integrated scheduling method, device and equipment and a storage medium. The method comprises the following steps: dividing an urban rail vehicle door system into a multi-level structure and associated three dimensions; constructing an urban rail vehicle door system operation and maintenance data system based on data dimension and time dimension fusion; constructing all types of models of the urban rail vehicle door system in the full service cycle based on the fusion of the model dimension and the time dimension; performing multi-dimensional fusion based on the hierarchical structure, the time dimension, the data dimension and the model dimension to construct a digital twin model simulation integrated scheduling cloud platform application; according to the invention, a digital twin integrated scheduling application is generated by utilizing multi-dimensional fusion of a hierarchical structure, a time dimension, a data dimension and a model dimension, so that intelligent scheduling of a vehicle door system is realized; meanwhile, the operation strategy can be adjusted according to real-time data and model prediction, more efficient and flexible resource configuration is achieved, and the operation cost is reduced.

Description

Technical Field

[0001] The present invention relates to the field of intelligent urban rail trains, and in particular to a multi-scale heterogeneous digital twin model simulation integrated scheduling method, device, equipment and storage medium for an urban rail vehicle door system. Background Art

[0002] With the rapid development of science and technology, real-time, intelligent and integrated technologies have become hot topics in today's society. These technologies have not only brought great convenience to life, but also injected new vitality into the development of enterprises. In this context, the fields of intelligent transportation systems and subway operations are particularly worthy of attention.

[0003] The realization of integrated technology requires the help of various technical means and protocol standards. Through these technical means and protocol standards, data can be shared and communicated between different systems, thereby achieving functional complementarity and optimization. Digital twin is an emerging technology in the field of intelligent manufacturing. As an effective way to achieve the interaction and integration of the physical world and the information world of manufacturing, it has received great attention from academic and business circles in related fields at home and abroad. The establishment of digital twin simulation models involves a variety of software tools. In the process of development and management, there are many problems such as difficulty in data intercommunication, difficulty in component reuse, and difficulty in integrated debugging.

[0004] The digital twin integrated dispatching cloud platform for the urban rail vehicle door system utilizes digital twin technology, integrates the twin platforms of other industrial software, collects data from other industrial software into the twin cloud platform and runs them in parallel, thereby increasing the dimension of the model and realizing multi-dimensional data information integration.

[0005] After research, the inventors found that the digital twin integrated scheduling method for the urban rail vehicle door system in the prior art still has at least the following defects:

[0006] It is difficult to jointly simulate the data, models and various stages of the business cycle of urban rail vehicle door systems.

[0007] The information disclosed in this background technology section is only intended to enhance the understanding of the overall background of the invention and should not be regarded as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to a person skilled in the art. Summary of the invention

[0008] The purpose of the present invention is to realize the digital twin integrated scheduling, simulation prediction, and decision optimization technology of the urban rail vehicle door system, form a new simulation mode of the urban rail vehicle door system enabled by twin technology, and greatly improve the efficiency and flexibility of various types of resource allocation in the entire business cycle of the model and data-driven urban rail vehicle door system.

[0009] The present invention provides a multi-scale heterogeneous digital twin model simulation integrated scheduling method for a door system of an urban rail vehicle, comprising the steps of:

[0010] S11, dividing the urban rail vehicle door system into a multi-level structure and associated three dimensions; the level structure includes: a system layer, a subsystem layer, and a component layer; the three dimensions include: a time dimension, a data dimension, and a model dimension;

[0011] S12, constructing an urban rail vehicle door system operation and maintenance data system based on the fusion of the data dimension and the time dimension;

[0012] S13, constructing various types of models of the entire business cycle of the urban rail vehicle door system based on the fusion of the model dimension and the time dimension;

[0013] S14. Construct a digital twin model simulation integrated scheduling cloud platform application by performing multi-dimensional fusion based on the hierarchical structure, the time dimension, the data dimension and the model dimension.

[0014] Preferably, in an embodiment of the present invention, dividing the multi-level structure includes:

[0015] Transmit force, motion and information between different nodes through physical connections; the physical connections are the interaction conditions between the same hierarchical structure and different hierarchical structures;

[0016] The full business cycle hierarchical modeling of the urban rail vehicle door system is carried out through a tree topology structure.

[0017] Preferably, in an embodiment of the present invention, it is characterized in that:

[0018] The time dimension includes: a locking stage, a door opening stage and a door closing stage;

[0019] The data dimensions include: a locking phase data set, an opening phase data set and a closing phase data set;

[0020] The model dimensions include: geometric model, physical model, behavioral model and rule model.

[0021] Preferably, in an embodiment of the present invention, the construction of an urban rail vehicle door system operation and maintenance data system based on the fusion of the data dimension and the time dimension includes:

[0022] S121. Constructing a full-business-cycle information-physical data set in the data dimension; the data set includes: streaming data and non-streaming data;

[0023] S122, horizontal integration of the data dimension and the time dimension;

[0024] S123. Vertical integration of the multi-level structure and the data dimension.

[0025] Preferably, in an embodiment of the present invention, the construction of various types of models of the entire business cycle of the urban rail vehicle door system based on the fusion of the model dimension and the time dimension includes:

[0026] S131, constructing a geometric model and a physical model of the vehicle door system;

[0027] S132, forming a behavior model according to the fusion of the geometric model, the physical model and the different stages of the time dimension;

[0028] S133, connecting multi-dimensional simulations in series according to a rule model to form a twin model; the rule model is established according to the simulation model data transmission rules.

[0029] Preferably, in an embodiment of the present invention, the multi-dimensional fusion based on the hierarchical structure, the time dimension, the data dimension and the model dimension to construct a digital twin model simulation integrated scheduling application includes:

[0030] S141, collecting real-time data of multi-stage business cycle data of the urban rail vehicle door system through real-time communication;

[0031] S142, driving and updating the twin model state according to the real-time data;

[0032] S143. Build a cloud platform application for simulation integrated scheduling.

[0033] In another aspect of the present invention, a multi-scale heterogeneous digital twin model simulation integrated scheduling device for a door system of an urban rail vehicle is provided, comprising:

[0034] The hierarchical structure division and dimension association unit is used to divide the urban rail vehicle door system into a multi-level structure and associate three dimensions; the multi-level structure includes: a system layer, a subsystem layer, and a component layer; the three dimensions include: a time dimension, a data dimension, and a model dimension;

[0035] An operation and maintenance data system construction unit, used to construct an operation and maintenance data system for a door system of an urban rail vehicle based on the fusion of the data dimension and the time dimension;

[0036] A model building unit, used to build various types of models of the entire business cycle of the urban rail vehicle door system based on the fusion of the model dimension and the time dimension;

[0037] The simulation integrated scheduling application unit is used to construct a digital twin model simulation integrated scheduling cloud platform application based on multi-dimensional fusion of the hierarchical structure, the time dimension, the data dimension and the model dimension.

[0038] Preferably, in the embodiment of the present invention,

[0039] The time dimension includes: a locking stage, a door opening stage and a door closing stage;

[0040] The data dimensions include: a locking phase data set, an opening phase data set and a closing phase data set;

[0041] The model dimensions include: geometric model, physical model, behavioral model and rule model.

[0042] On the other side of the embodiment of the present invention, a multi-scale heterogeneous digital twin model simulation integrated scheduling device for a door system of an urban rail vehicle is also provided; the multi-scale heterogeneous digital twin model simulation integrated scheduling device for a door system of an urban rail vehicle includes a computer program stored on a medium, and the computer program includes program instructions. When the program instructions are executed by a computer, the computer executes the methods described in the above aspects and achieves the same technical effects.

[0043] On the other hand, a storage medium is provided on which a computer program is stored. When the computer program is executed by a processor, each step of the multi-scale heterogeneous digital twin model simulation integrated scheduling method for the urban rail vehicle door system as described in any one of the above items is implemented.

[0044] Compared with the prior art, the present invention has the following beneficial effects:

[0045] In the present invention, by dividing the multi-level structure of the urban rail vehicle door system and associating the three dimensions of time, data and model, the various components of the urban rail vehicle door system can be more accurately mapped and monitored, thereby improving the comprehensive understanding and real-time monitoring of the system status; based on the fusion of data dimension and time dimension, the urban rail vehicle door system operation and maintenance data system is constructed, so that various types of data can be timely and effectively integrated and analyzed; this deep data fusion capability greatly improves the reliability and availability of information, and provides a solid foundation for decision-making; based on the fusion of model dimension and time dimension, various types of models of the entire business cycle of the urban rail vehicle door system are constructed, and a comprehensive model covering the entire business cycle can be established. This feature makes the operation and maintenance management not only limited to the current state, but also can predict future trends and potential problems, and make early warnings and preparations; based on the digital twin integrated scheduling application of the multi-dimensional fusion of structural hierarchy and time dimension, data dimension and model dimension, the digital twin model simulation integrated scheduling application of the entire business cycle of the urban rail vehicle door system is completed, and the intelligent scheduling of the door system is realized.

[0046] Furthermore, the present invention can adjust operation strategies according to real-time data and model predictions, achieve more efficient and flexible resource allocation, and reduce operating costs.

[0047] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, and to make the above and other purposes, technical features and advantages of the present invention easier to understand, one or more preferred embodiments are listed below and described in detail with the accompanying drawings as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0049] Figure 1 It is a step diagram of the multi-scale heterogeneous digital twin model simulation integrated scheduling method of the urban rail vehicle door system described in the present invention;

[0050] Figure 2 It is a multi-level tree topological structure diagram of the urban rail vehicle door system of the present invention;

[0051] Figure 3 It is a fusion logic diagram of the full business cycle model of the urban rail vehicle door system described in the present invention;

[0052] Figure 4 It is the digital twin integrated dispatching cloud platform application of the urban rail vehicle door system described in the present invention;

[0053] Figure 5 It is a structural schematic diagram of the multi-scale heterogeneous digital twin model simulation integrated dispatching device of the urban rail vehicle door system described in the present invention;

[0054] Figure 6 It is a schematic diagram of the structure of the multi-scale heterogeneous digital twin model simulation integrated dispatching equipment of the urban rail vehicle door system described in the present invention. DETAILED DESCRIPTION

[0055] The specific implementation modes of the present invention are described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific implementation modes.

[0056] Unless explicitly stated otherwise, throughout the specification and claims, the term “comprise” or variations such as “include” or “comprising”, etc., will be understood to include the stated elements or components but not to exclude other elements or components.

[0057] In this document, the terms "first", "second", etc. are used to distinguish two different elements or parts, and are not used to limit a specific position or relative relationship. In other words, in some embodiments, the terms "first", "second", etc. can also be interchangeable.

[0058] Embodiment 1

[0059] In order to realize the digital twin integrated scheduling, simulation prediction, and decision optimization technology of urban rail vehicle door system, a new simulation mode of urban rail vehicle door system empowered by twin technology is formed, and the efficiency and flexibility of various types of resource allocation in the whole business cycle of urban rail vehicle door system driven by model and data are greatly improved, physical costs are reduced, and resource utilization is optimized, such as Figure 1 and Figure 2 As shown, in an embodiment of the present invention, a multi-scale heterogeneous digital twin model simulation integrated scheduling method for a door system of an urban rail vehicle is provided, comprising the steps of:

[0060] S11, dividing the urban rail vehicle door system into a multi-level structure and associated three dimensions; the level structure includes: a system layer, a subsystem layer, and a component layer; the three dimensions include: a time dimension, a data dimension, and a model dimension;

[0061] In the embodiment of the present invention, a multi-level structure is divided, including:

[0062] Force, motion and information are transmitted between different nodes through physical connections; physical connections are the conditions for interaction between the same hierarchical structure and different hierarchical structures;

[0063] The full business cycle hierarchical modeling of the urban rail vehicle door system is carried out through a tree topology structure.

[0064] Specifically, the door system of urban rail vehicles is divided into a multi-level structure, as follows: Figure 3 The multi-level tree topology structure of the urban rail vehicle door system shown in the figure divides the system levels of different scales according to different levels and degrees of detail to complete the multi-level structure division of the urban rail vehicle door system, including system level, subsystem level and component level; the interaction condition between the structure of the same level and the structure of different levels is physical connection, through which force, motion and information are transmitted between different nodes; the tree topology structure is used to model the hierarchical relationship of the whole business cycle of the door system. For the topology structure tree, it includes intermediate nodes and minimum nodes, where each intermediate node on the topology structure tree represents that the door system can be further divided into various subsystems and components. For example, the mechanical system component as an intermediate node can be divided into two lower nodes, namely, the frame and the moving part. The moving part can be divided into two lower nodes, namely, the rotating part and the translating part. The rotating part can be divided into a screw and a nut; the construction of the smallest node of the tree topology structure is an inseparable component and a smallest assembly unit, such as a screw and a spring nut.

[0065] Furthermore, in the embodiment of the present invention, three dimensions of digital twin modeling of the vehicle door system are defined, namely: time dimension, data dimension and model dimension; wherein,

[0066] The time dimension includes: locking stage, door opening stage and door closing stage;

[0067] The data dimensions include: the data set of the locking stage, the data set of the opening stage and the data set of the closing stage;

[0068] The model dimension includes: geometric model, physical model, behavioral model and rule model.

[0069] First, define the time dimension as Dim1T, and use Dim1Ti to represent the different time stages of the door system in the entire business cycle, including the locking stage Dim1TLoc, the opening stage Dim1TOpe, and the closing stage Dim1TClo; define the data dimension as Dim2D; use Dim2Di to represent the various types of data generated in the locking stage, opening stage, and closing stage of the door system. Among them, Dim2DLoc represents the locking stage data set, Dim2DOpe represents the opening stage data set, and Dim2DClo represents the closing stage data set; according to different view requirements, the data dimension can be further divided to form more data subsets, such as time series databases, knowledge graphs, etc. The model dimension is defined as Dim3M; Dim3Mi is used to represent various models constructed based on the data sets of the urban rail vehicle door system in the locking stage, door opening stage and door closing stage, including the geometric model Dim3MGeo, the physical model Dim3MPhy, the behavioral model Dim3MBeh and the rule model Dim3MRul. These four models are fused to form a digital twin model, and the fusion process is expressed as:

[0070] Dim3Twin=Dim3MGeo∩Dim3MPhy∩Dim3MBeh∩Dim3MRul

[0071] In step S11, the multi-level structure division and three-dimensional association of the urban rail vehicle door system are completed; the multi-level structure division and three-dimensional association method of the urban rail vehicle door system proposed in the present invention has the following advantages over the prior art: the concept of three-dimensional space including time dimension, model dimension and data dimension is proposed, and the hierarchical expression of the door system is realized through the topological structure tree, and the unified association of the other three dimensions of each node is realized based on this core, so as to orderly organize and manage various information physical data, models and dynamic activities of the whole business cycle process of the door system.

[0072] S12, constructing an urban rail vehicle door system operation and maintenance data system based on the fusion of the data dimension and the time dimension;

[0073] In the embodiment of the present invention, when constructing the urban rail vehicle door system operation and maintenance data system, it includes:

[0074] S121. Constructing a full-business-cycle information-physical data set in the data dimension; the data set includes: streaming data and non-streaming data;

[0075] Specifically, data collected in real time at a certain time and frequency is classified as streaming data, such as the motor speed, angle, and torque monitoring data during the business cycle, which are collected every 0.01s. The data are continuously accumulated and stored in the form of a time series database; while non-streaming data is historical experience data, such as the door system failure and measures data of additional vehicles purchased from 2022 to 2024, which are stored in the form of a knowledge base; based on the experimental collection data (streaming data) and historical experience data (non-streaming data), the full business cycle information physical data set is constructed in the data dimension respectively.

[0076] S122, horizontal integration of the data dimension and the time dimension;

[0077] Based on the time stages divided by the urban rail vehicle door system in the time dimension, a mapping relationship between business stages and experimental data is established according to the time relationship. Each time node corresponds to unique business cycle information physical data, thus forming a one-to-one mapping time-data system to achieve horizontal integration of data dimension and time dimension.

[0078] S123. Vertical integration of the multi-level structure and the data dimension.

[0079] The data sets formed in each business segment of the locking stage, door opening stage and door closing stage of the urban rail vehicle door system are data-associated with the hierarchical structure points of the tree-like topological structure of the urban rail vehicle door system, that is, each level has a data association relationship in each stage, and the topological structure tree is used as the vertical axis to form a vertical organization form of the data sets in each business stage with the topological structure tree as the core, so as to realize vertical data fusion; in the locking stage, the data are vertically integrated by relying on the door system and the motor current and control signal; in the door opening stage, the data are vertically integrated based on the motor current, speed, torque, angle and other data sets and the door system behavior response; similarly, in the door closing stage, the data are vertically integrated based on the motor current, speed, torque, angle and other data sets and the door system behavior response.

[0080] In step S12, the method for constructing a full business cycle data system based on the fusion of data dimension and time dimension proposed in the present invention forms a complete full business cycle data system for the urban rail vehicle door system by constructing a full business cycle data set, horizontally fusing the data dimension and the time dimension, and vertically fusing the data dimension and the multi-level structure of the door system, and proposes a horizontal and vertical fusion method for data, realizes the organization of data within the stage through the vertical fusion of data, and realizes the transmission of data between stages through the horizontal fusion of data.

[0081] S13, constructing various types of models of the entire business cycle of the urban rail vehicle door system based on the fusion of the model dimension and the time dimension;

[0082] In the embodiment of the present invention, various types of models of the entire service cycle of the urban rail vehicle door system are constructed, including:

[0083] S131, constructing a geometric model and a physical model of the vehicle door system;

[0084] Construct the geometric model and physical model of the vehicle door system. Use Solidworks to design the door system of the urban rail vehicle, including key components such as the door body, motor, and transmission device. Pay attention to the geometric accuracy of the model and the relative position relationship of each component to ensure the accuracy of the subsequent dynamic analysis; import the 3D model exported from Solidworks in Adams, set motion constraints (such as rotation axis, sliding trajectory) and drive input parameters (such as motor control signal), and complete the definition of physical properties; establish a brushless DC drive motor model in Simulink, design a drive circuit including an inverter to control the motor, integrate a Hall effect sensor or position sensor model to provide feedback, add a control algorithm module to connect to the drive circuit to achieve speed or position control, use scopes to monitor speed, current, and torque, adjust parameters according to the results to optimize performance, and complete the modeling of the physical model of the mechanical control system.

[0085] S132, forming a behavior model according to the fusion of the geometric model, the physical model and the different stages of the time dimension;

[0086] The data information of the door opening stage is input into the multi-body dynamics model through the interface to complete the door opening action and realize the simulation of the stage behavior. Similarly, the data information of the door closing stage is input into the multi-body dynamics model through the interface to complete the door closing action and realize the simulation of the stage behavior. The stage data is input into the motor control model, and the target speed and torque output are completed by adjusting the proportional integral gain parameters to realize the simulation of the control behavior.

[0087] S133, connecting multi-dimensional simulations in series according to a rule model to form a twin model; the rule model is established according to the simulation model data transmission rules.

[0088] In Adams, determine the input and output of the system. Take the motor speed as input, and the door position and load torque as output; create variables in the Adams system unit and associate them with actual physical quantities, create input and output files for transferring data between Adams and Simulink, use Adams' mechanical system export function to generate a Simulink subsystem containing the dynamic behavior of the Adams model, connect the motor control behavior model, realize the integration of the mechanical system and the electrical system, and form a twin model.

[0089] In step S13, the present invention proposes the construction of various types of models of the entire business cycle of the urban rail vehicle door system based on the fusion of model dimension and time dimension. By constructing the door system geometry, physics, behavior, and rule models, the interaction relationship between various models is analyzed, and the fusion of different models of the entire business cycle of the urban rail vehicle door system is realized.

[0090] S14. Construct a digital twin model simulation integrated scheduling cloud platform application by performing multi-dimensional fusion based on the hierarchical structure, the time dimension, the data dimension and the model dimension.

[0091] In an embodiment of the present invention, a digital twin model simulation integrated scheduling cloud platform application is constructed, including:

[0092] S141, collecting real-time data of multi-stage business cycle data of the urban rail vehicle door system through real-time communication;

[0093] Develop a real-time data acquisition interface to upload the current, speed, angle, torque of the door system's motor, displacement, speed, acceleration and other data of the door to the cloud platform, and establish data transmission modules on the Matlab / Simulink side and the Unity3D side respectively. On the Matlab side, you can use the UDP sending and receiving module in the Simulink module library to set the IP address and port number to realize data sending and receiving.

[0094] S142, driving and updating the twin model state according to the real-time data;

[0095] According to the behavioral activities of the twin model, an event-driven finite state transfer model is constructed to enable the digital twin logic model to have behavioral characteristics, response mechanisms, and the ability to perform state transitions. Through the synchronization promotion rules between models, the cooperation between models and data scheduling are coordinated, and the twin model status update is driven by real-time data.

[0096] S143. Build a cloud platform application for simulation integrated scheduling.

[0097] Load the developed data upload interface on the cloud platform, send the real-time monitoring data of the door system to the cloud platform for storage, deploy the locally developed digital twin model and status monitoring algorithm to the cloud platform, and develop a visual monitoring and management interface.

[0098] In step S14, the multi-stage business cycle data of the door system is communicated in real time, and an event-driven finite state transfer model is constructed as a digital twin logic model. According to the state synchronization, the coordination between models and data scheduling are coordinated, and the twin model state is updated using real-time data. The digital twin integrated scheduling cloud platform application of the urban rail vehicle door system is realized. Figure 4 The digital twin integrated dispatching cloud platform application of the urban rail vehicle door system is shown.

[0099] In summary, in the embodiment of the present invention, by dividing the multi-level structure of the urban rail vehicle door system and associating the three dimensions of time, data, and model, the various components of the urban rail vehicle door system can be more accurately mapped and monitored, thereby improving the comprehensive understanding and real-time monitoring of the system status; the urban rail vehicle door system operation and maintenance data system is constructed based on the fusion of data dimension and time dimension, so that various types of data can be integrated and analyzed in a timely and effective manner; this deep data fusion capability greatly improves the reliability and availability of information, and provides a solid foundation for decision-making; based on the fusion of model dimension and time dimension, various types of models of the entire business cycle of the urban rail vehicle door system are constructed, and a comprehensive model covering the entire business cycle can be established. This feature makes the operation and maintenance management not only limited to the current state, but also able to predict future trends and potential problems, and make early warnings and preparations; based on the digital twin integrated scheduling application of the multi-dimensional fusion of structural hierarchy and time dimension, data dimension, and model dimension, the digital twin model simulation integrated scheduling application of the entire business cycle of the urban rail vehicle door system is completed, and the intelligent scheduling of the door system is realized.

[0100] Furthermore, the embodiments of the present invention can adjust the operation strategy according to the real-time data and model prediction, realize more efficient and flexible resource allocation, and reduce the operation cost.

[0101] Embodiment 2

[0102] Corresponding to the method embodiment, on the other side of the embodiment of the present invention, a multi-scale heterogeneous digital twin model simulation integrated scheduling device for a door system of an urban rail vehicle is also provided. Figure 5 A schematic diagram of the structure of a multi-scale heterogeneous digital twin model simulation integrated scheduling device for a door system of a rail vehicle provided by an embodiment of the present invention is shown. The multi-scale heterogeneous digital twin model simulation integrated scheduling device for a door system of a rail vehicle is Figure 1The device corresponding to the multi-scale heterogeneous digital twin model simulation integrated scheduling method of the urban rail vehicle door system described in the corresponding embodiment, that is, the virtual device is used to implement Figure 1 In the corresponding embodiment, the multi-scale heterogeneous digital twin model simulation integrated scheduling method for the urban rail vehicle door system, each virtual module constituting the multi-scale heterogeneous digital twin model simulation integrated scheduling device for the urban rail vehicle door system can be executed by an electronic device, such as a network device, a terminal device or a server. Specifically, the multi-scale heterogeneous digital twin model simulation integrated scheduling device for the urban rail vehicle door system in the embodiment of the present invention includes:

[0103] The hierarchical structure division and dimension association unit 01 is used to divide the urban rail vehicle door system into a multi-level structure and associate three dimensions; the multi-level structure includes: a system layer, a subsystem layer, and a component layer; the three dimensions include: a time dimension, a data dimension, and a model dimension;

[0104] In the embodiment of the present invention, a multi-level structure is divided, including:

[0105] Force, motion and information are transmitted between different nodes through physical connections; physical connections are the conditions for interaction between the same hierarchical structure and different hierarchical structures;

[0106] The full business cycle hierarchical modeling of the urban rail vehicle door system is carried out through a tree topology structure.

[0107] Furthermore, in the embodiment of the present invention, three dimensions of digital twin modeling of the vehicle door system are defined, namely: time dimension, data dimension and model dimension; wherein,

[0108] The time dimension includes: a locking stage, a door opening stage and a door closing stage;

[0109] The data dimensions include: a locking phase data set, an opening phase data set and a closing phase data set;

[0110] The model dimensions include: geometric model, physical model, behavioral model and rule model.

[0111] An operation and maintenance data system construction unit 02 is used to construct an operation and maintenance data system for a door system of an urban rail vehicle based on the fusion of the data dimension and the time dimension;

[0112] In the embodiment of the present invention, when constructing the urban rail vehicle door system operation and maintenance data system, it includes:

[0113] S121. Constructing a full-business-cycle information-physical data set in the data dimension; the data set includes: streaming data and non-streaming data;

[0114] S122, horizontal integration of the data dimension and the time dimension;

[0115] S123. Vertical integration of the multi-level structure and the data dimension.

[0116] A model building unit 03, used to build various types of models of the entire business cycle of the urban rail vehicle door system based on the fusion of the model dimension and the time dimension;

[0117] In the embodiment of the present invention, various types of models of the entire service cycle of the urban rail vehicle door system are constructed, including:

[0118] S131, constructing a geometric model and a physical model of the vehicle door system;

[0119] S132, forming a behavior model according to the fusion of the geometric model, the physical model and the different stages of the time dimension;

[0120] S133, connecting multi-dimensional simulations in series according to a rule model to form a twin model; the rule model is established according to the simulation model data transmission rules.

[0121] The simulation integrated scheduling application unit 04 is used to construct a digital twin model simulation integrated scheduling cloud platform application based on multi-dimensional fusion of the hierarchical structure, the time dimension, the data dimension and the model dimension.

[0122] In an embodiment of the present invention, a digital twin model simulation integrated scheduling cloud platform application is constructed, including:

[0123] S141, collecting real-time data of multi-stage business cycle data of the urban rail vehicle door system through real-time communication;

[0124] S142, driving and updating the twin model state according to the real-time data;

[0125] S143. Build a cloud platform application for simulation integrated scheduling.

[0126] It should be noted that the specific implementation method and technical effects of the multi-scale heterogeneous digital twin model simulation integrated dispatching device for the urban rail vehicle door system in the embodiment of the present invention can be referred to Figure 1 The corresponding multi-scale heterogeneous digital twin model simulation integrated scheduling method of the urban rail vehicle door system will not be described here.

[0127] Embodiment 3

[0128] Corresponding to the method embodiment, in the embodiment of the present invention, a multi-scale heterogeneous digital twin model simulation integrated dispatching device for the door system of urban rail vehicles is also provided, such as a terminal, a server, etc. Among them, the server can be an independent physical server, or a server cluster or distributed system composed of multiple physical servers, or a cloud server that provides basic cloud computing services such as cloud services, cloud databases, cloud computing, cloud functions, cloud storage, network services, cloud communications, middleware services, domain name services, security services, CDN, and big data and artificial intelligence platforms. The terminal can be a smart phone, a tablet computer, a laptop computer, a desktop computer, etc., but is not limited to this.

[0129] An example of a hardware structure block diagram of a multi-scale heterogeneous digital twin model simulation integrated dispatching device for a door system of a urban rail vehicle provided by an embodiment of the present invention is shown in FIG. Figure 6 As shown, this may include:

[0130] Processor 1, communication interface 2, memory 3 and communication bus 4;

[0131] The processor 1, the communication interface 2, and the memory 3 communicate with each other via the communication bus 4;

[0132] Optionally, the communication interface 2 may be an interface of a communication module, such as an interface of a GSM module;

[0133] The processor 1 may be a central processing unit CPU, or an application-specific integrated circuit ASIC (Application Specific Integrated Circuit), or one or more integrated circuits configured to implement the embodiments of the present application.

[0134] The memory 3 may include a high-speed RAM memory, and may also include a non-volatile memory (non-volatile memory), such as at least one disk memory.

[0135] The processor 1 is specifically used to execute the computer program stored in the memory 3 to perform the following steps:

[0136] S11, dividing the urban rail vehicle door system into a multi-level structure and associated three dimensions; the level structure includes: a system layer, a subsystem layer, and a component layer; the three dimensions include: a time dimension, a data dimension, and a model dimension;

[0137] S12, constructing an urban rail vehicle door system operation and maintenance data system based on the fusion of the data dimension and the time dimension;

[0138] S13, constructing various types of models of the entire business cycle of the urban rail vehicle door system based on the fusion of the model dimension and the time dimension;

[0139] S14. Construct a digital twin model simulation integrated scheduling cloud platform application by performing multi-dimensional fusion based on the hierarchical structure, the time dimension, the data dimension and the model dimension.

[0140] The above-mentioned product can execute the method provided in the embodiment of the present invention, and has the functional modules and beneficial effects corresponding to the execution method. For technical details not fully described in this embodiment, please refer to the multi-scale heterogeneous digital twin model simulation integrated scheduling method for the door system of urban rail vehicles provided in the embodiment of the present invention.

[0141] Embodiment 4

[0142] In an embodiment of the present invention, a storage medium is further provided, which may store a program suitable for execution by a processor, wherein the program is used to:

[0143] S11, dividing the urban rail vehicle door system into a multi-level structure and associated three dimensions; the level structure includes: a system layer, a subsystem layer, and a component layer; the three dimensions include: a time dimension, a data dimension, and a model dimension;

[0144] S12, constructing an urban rail vehicle door system operation and maintenance data system based on the fusion of the data dimension and the time dimension;

[0145] S13, constructing various types of models of the entire business cycle of the urban rail vehicle door system based on the fusion of the model dimension and the time dimension;

[0146] S14. Construct a digital twin model simulation integrated scheduling cloud platform application by performing multi-dimensional fusion based on the hierarchical structure, the time dimension, the data dimension and the model dimension.

[0147] Optionally, the detailed functions and extended functions of the program may refer to the above description.

[0148] The above product can execute the method provided by the embodiment of the present invention, and has the functional modules and beneficial effects corresponding to the execution method. For technical details not described in detail in this embodiment, please refer to the methods provided by other embodiments of the present invention.

[0149] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0150] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. In addition, the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interface, device or unit, which can be electrical, mechanical or other forms.

[0151] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0152] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0153] It should be understood that in the embodiments of the present application, the various embodiments and features can be combined with each other to solve the aforementioned technical problems.

[0154] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0155] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A multi-scale heterogeneous digital twin model simulation integrated scheduling method for urban rail vehicle door system, characterized in that: Includes steps: S11, dividing the urban rail vehicle door system into a multi-level structure and three associated dimensions; The hierarchical structure includes: system layer, subsystem layer, component layer; the three dimensions include: time dimension, data dimension and model dimension; S12, constructing an urban rail vehicle door system operation and maintenance data system based on the fusion of the data dimension and the time dimension; S13, constructing various types of models of the entire business cycle of the urban rail vehicle door system based on the fusion of the model dimension and the time dimension; S14. Construct a digital twin model simulation integrated scheduling cloud platform application by performing multi-dimensional fusion based on the hierarchical structure, the time dimension, the data dimension and the model dimension.

2. The multi-scale heterogeneous digital twin model simulation integrated scheduling method for the urban rail vehicle door system according to claim 1 is characterized in that: Dividing the multi-level structure includes: Transmit force, motion and information between different nodes through physical connections; the physical connections are the interaction conditions between the same hierarchical structure and different hierarchical structures; The full business cycle hierarchical modeling of the urban rail vehicle door system is carried out through a tree topology structure.

3. The multi-scale heterogeneous digital twin model simulation integrated scheduling method for the urban rail vehicle door system according to claim 2 is characterized in that: The time dimension includes: a locking stage, a door opening stage and a door closing stage; The data dimensions include: a locking phase data set, an opening phase data set and a closing phase data set; The model dimensions include: geometric model, physical model, behavioral model and rule model.

4. The multi-scale heterogeneous digital twin model simulation integrated scheduling method for the urban rail vehicle door system according to claim 3 is characterized in that: The construction of the urban rail vehicle door system operation and maintenance data system based on the fusion of the data dimension and the time dimension includes: S121. Constructing a full-business-cycle information-physical data set in the data dimension; the data set includes: streaming data and non-streaming data; S122, horizontal integration of the data dimension and the time dimension; S123. Vertical integration of the multi-level structure and the data dimension.

5. The multi-scale heterogeneous digital twin model simulation integrated scheduling method for the urban rail vehicle door system according to claim 1 is characterized in that: The construction of various types of models of the entire business cycle of the urban rail vehicle door system based on the fusion of the model dimension and the time dimension includes: S131, constructing a geometric model and a physical model of the vehicle door system; S132, forming a behavior model according to the fusion of the geometric model, the physical model and the different stages of the time dimension; S133, connecting multi-dimensional simulations in series according to a rule model to form a twin model; the rule model is established according to the simulation model data transmission rules.

6. The multi-scale heterogeneous digital twin model simulation integrated scheduling method for the urban rail vehicle door system according to claim 1 is characterized in that: The multi-dimensional fusion based on the hierarchical structure, the time dimension, the data dimension and the model dimension to construct a digital twin model simulation integrated scheduling cloud platform application includes: S141, collecting real-time data of multi-stage business cycle data of the urban rail vehicle door system through real-time communication; S142, driving and updating the twin model state according to the real-time data; S143. Build a cloud platform application for simulation integrated scheduling.

7. A multi-scale heterogeneous digital twin model simulation integrated dispatching device for a city rail vehicle door system, characterized in that: include: A hierarchical structure division and dimension association unit is used to divide the door system of urban rail vehicles into multiple hierarchical structures and associate three dimensions; The multi-level structure includes: system layer, subsystem layer, component layer; the three dimensions include: time dimension, data dimension and model dimension; An operation and maintenance data system construction unit, used to construct an operation and maintenance data system for a door system of an urban rail vehicle based on the fusion of the data dimension and the time dimension; A model building unit, used to build various types of models of the entire business cycle of the urban rail vehicle door system based on the fusion of the model dimension and the time dimension; The simulation integrated scheduling application unit is used to construct a digital twin model simulation integrated scheduling cloud platform application based on multi-dimensional fusion of the hierarchical structure, the time dimension, the data dimension and the model dimension.

8. The multi-scale heterogeneous digital twin model simulation integrated dispatching device for the urban rail vehicle door system according to claim 7, characterized in that: The time dimension includes: a locking stage, a door opening stage and a door closing stage; The data dimensions include: a locking phase data set, an opening phase data set and a closing phase data set; The model dimensions include: geometric model, physical model, behavioral model and rule model.

9. A multi-scale heterogeneous digital twin model simulation integrated dispatching device for a city rail vehicle door system, characterized in that: include: Memory for storing computer programs; A processor is used to call and execute the computer program to implement the steps of the multi-scale heterogeneous digital twin model simulation integrated scheduling method for the urban rail vehicle door system as described in any one of claims 1 to 6.

10. A storage medium, characterized in that: It includes a software program, which is suitable for a processor to execute the steps of the multi-scale heterogeneous digital twin model simulation integrated scheduling method for the urban rail vehicle door system as described in any one of claims 1 to 6.

Images