Intelligent network connection platform based on digital twinning

Abstract

The invention belongs to the technical field of digital twinning, and particularly relates to an intelligent network connection platform based on digital twinning, which is structurally divided into a physical layer, a data layer, a twinning layer, a functional layer and an application layer which are connected in sequence, wherein the physical layer and the data layer are used for performing a real-time data acquisition function aiming at vehicle, traffic light and traffic flow information in a real road, performing classification and standardization processing on data through the data layer, and providing data support for operation of the digital twin platform; the twinborn layer and the functional layer are used for undertaking the task of real-time mapping of the real world from the perspective of the full life cycle and the whole process; and the application layer is used for realizing fine management of data through a digital twin visual interface and a platform management system deployed at a Web end. According to the method, a feedback mechanism is optimized, multivariate data is integrated to an application layer, the conciseness and readability of the system are enhanced, and meanwhile, a management system is designed, so that the digital twin platform is easy to manage, dynamic, efficient and flexible to expand.

Description

Technical Field

[0001] The present invention belongs to the technical field of digital twins, and specifically relates to an intelligent network connection platform based on digital twins. Background Art

[0002] With the rapid development of Internet of Vehicles technology, higher requirements have been put forward for the digitalization of transportation. According to the "Outline of the Digital Transportation Development Plan" of the Ministry of Transport, in the future, a "modern transportation system with data as the key element and core driver" and "promoting the continuous integration and interaction of transportation activities in physical and virtual space" will be built. At the same time, the "New Energy Vehicle Industry Development Plan (2021-2035)" emphasizes that China will accelerate the digital transformation of road infrastructure in the future, encourage the construction of digital transportation systems and cloud platforms, and create core competitiveness and new industrial ecology for intelligent networking. Therefore, building a digital vehicle-road-cloud integrated collaborative platform will be an important direction for the future development of intelligent networking.

[0003] With the development of new-generation information technologies such as 5G, cloud computing, and big data, digital twin technology has flourished. It maps the real world in real time in virtual space, predicts, optimizes, and provides feedback on real problems in virtual space. It has the characteristics of virtual control of the real world and real-time iteration, and has become an important technical means to build a digital intelligent network platform.

[0004] However, traditional intelligent network platforms based on digital twin technology have many defects: 1) Most platforms focus on data visualization and lack an optimized feedback mechanism for actual traffic problems. 2) Insufficient data refinement management and poor real-time data visualization. Therefore, it is necessary to optimize and improve traditional intelligent network platforms based on digital twin technology. Summary of the invention

[0005] The purpose of the present invention is to overcome the problems of imperfect optimization feedback mechanism, insufficient data refinement management and poor real-time data visualization effect in traditional intelligent network platforms based on digital twins, and to provide an intelligent network platform based on digital twins. Compared with common digital twin visualization platforms, this platform not only innovatively integrates the originally scattered multi-dimensional data into the application layer, enhancing the simplicity and readability of the system, but also designs a management system for the intelligent operation of the platform, giving full play to the advantages of digital twin technology in intelligent network applications, making the digital twin platform easy to manage, dynamic and efficient, and flexibly expandable.

[0006] In order to achieve the above technical objectives and the above technical effects, the present invention is implemented through the following technical solutions:

[0007] The present invention provides an intelligent network connection platform based on digital twins, the platform architecture is divided into a physical layer, a data layer, a twin layer, a functional layer and an application layer which are connected in sequence, wherein:

[0008] The physical layer and data layer are used to collect real-time data on vehicles, traffic lights and traffic flow information on real roads, and the data layer classifies and normalizes the data to provide data support for the operation of the digital twin platform;

[0009] The twin layer and functional layer are the core of building a digital twin platform, which is used to undertake the task of real-time mapping of the real world from the perspective of the entire life cycle and the entire process; at the same time, they are used to further explore the data, diagnose and analyze existing problems, and the feedback optimization function is deduced through intelligent algorithms and generates feedback optimization information;

[0010] The application layer is used to achieve refined data management through the digital twin visualization interface and platform management system deployed on the Web, summarize information to generate visualization reports, dynamic data supervision, vehicle-road collaboration and background management.

[0011] Furthermore, in the above-mentioned intelligent network platform based on digital twins, the feedback optimization function is realized by an intelligent algorithm deployed in the functional layer. The algorithm detects the real-time status of vehicles and traffic facilities in the twin layer in real time and predicts potential problems. In terms of the optimization feedback implementation method, compared with the traditional implementation method through program editing, the present invention is equipped with a platform management system, which can realize different feedback functions through visual operations, and is easy to operate and implement.

[0012] Furthermore, in the above-mentioned intelligent connected platform based on digital twins, 5G communication technology is used in the real-time data collection function and feedback optimization function, and it has the ability to communicate with mainstream 5G-CV2X vehicle-mounted equipment.

[0013] Furthermore, in the above-mentioned intelligent connected platform based on digital twins, the visualization interface includes real-time animation, function options and visualization reports; the visualization interface is used to accurately display the traffic conditions in the area.

[0014] Furthermore, in the above-mentioned intelligent connected platform based on digital twins, the platform management system is an important component of the intelligent operation and maintenance of the digital twin platform, which is used to make the digital twin platform easy to manage, dynamic and efficient, and flexible to expand; the platform management system has three functional modules: digital twin model management functional module, personnel management functional module, and message management functional module.

[0015] Furthermore, in the above-mentioned intelligent network platform based on digital twins, the digital twin model management function module supports the setting of digital model parameters, such as the deletion of parameters such as vehicle speed, fuel level, tire pressure, etc.; when a new model is connected, the communication protocol setting and model type addition can add or delete specified communication protocols and 3D models in the management system to achieve linkage; to achieve different feedback functions, the digital twin model management function module supports editing the feedback parameters of the digital model, such as feedback on vehicle recommended speed, traffic light guidance phase, etc.; the digital twin model management function module can further improve the flexibility and redundancy of the digital twin platform.

[0016] Furthermore, in the above-mentioned intelligent connected platform based on digital twins, the personnel management function module is used to facilitate the management of staff, authorized units and operating unit personnel, aiming to improve the information security of the digital twin platform and accurately manage internal and external personnel.

[0017] Furthermore, in the above-mentioned intelligent connected platform based on digital twins, the message management function module includes equipment warning information, vehicle status tracking, access device type and quantity statistics, and the message management function module displays the information in real time in the form of charts to reduce data dispersion.

[0018] Furthermore, in the above-mentioned intelligent connected platform based on digital twins, in order to more fully realize refined data management, the platform management system corresponds different data to objects one by one, realizes a data management mode with vehicles and road test equipment as objects, enhances the operability of the platform, and reduces the management difficulty of operators.

[0019] Furthermore, in the above-mentioned intelligent network platform based on digital twins, a unified communication protocol is established in the implementation framework of the digital twin technology, and reliable communication enables close data interaction between various levels; Socket, lightweight messaging protocol MQTT, and concise cJSON data format are used in the implementation framework of the digital twin technology for information encoding; the lightweight messaging protocol MQTT protocol, with its simple design and small data packet header, enables the digital twin platform to exhibit efficient communication performance in an environment with limited bandwidth and high network latency, ensuring that the digital twin platform can map real traffic problems in real time.

[0020] The beneficial effects of the present invention are:

[0021] 1. It has an optimized feedback mechanism and is simple to implement

[0022] The present invention supports the analysis and optimization of vehicle driving data and real-time data of road test equipment, such as using the optimization feedback function to dynamically adjust the recommended vehicle speed and traffic light phase; it also supports real-time detection of the distance, speed difference, and relative position between vehicles in the area, to monitor dangerous driving behaviors, and to collect data and feed it back to management personnel in the form of visual reports; in terms of the optimization feedback implementation method, compared with the traditional implementation method through program editing, the present invention is equipped with a platform management system, which can realize different feedback functions through visual operations, effectively reducing the difficulty of implementation.

[0023] 2. Refined data management and strong scalability

[0024] The present invention integrates the originally scattered multi-dimensional data into the application layer. The digital twin visualization interface has rich display components, supporting functions such as full-domain overview, detailed safety situation, and real-time tracking of any vehicle in the area. A data management model with vehicles and road test equipment as objects is constructed through the platform management system, which realizes a one-to-one correspondence between different data and objects, further enhancing the degree of refined data management. The platform management system in the present invention has the function of digital twin model management, supports digital model parameter setting, adding or deleting digital models, etc., so that the platform has strong scalability.

[0025] 3. Real-time data visualization is better

[0026] The architecture of the present invention supports 5G communication and can be integrated with the current mainstream 5G-CV2X vehicle-mounted equipment; Socket, lightweight messaging protocol MQTT, and concise cJSON data format are widely used for information encoding, so that the digital twin platform can show efficient communication performance in an environment with limited bandwidth and high network latency; the digital twin visualization interface and platform management system have a rich content visualization interface, which not only realizes the real mapping of the physical world, but also makes related operations visualized as much as possible; therefore, the present invention has a better real-time data visualization effect.

[0027] Of course, any product implementing the present invention does not necessarily need to achieve all of the above advantages at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0029] Figure 1 It is the overall architecture diagram of the present invention;

[0030] Figure 2 A logic block diagram for realizing the feedback optimization function of the present invention;

[0031] Figure 3 A schematic diagram of driving advice and optimized traffic light phase displayed by a vehicle in actual application of the present invention;

[0032] Figure 4 is a schematic diagram of a visualization interface in the present invention;

[0033] Figure 5 It is a schematic diagram of the functions of the digital twin platform management system in the present invention;

[0034] Figure 6 It is a schematic diagram of the digital twin platform management system interface in the present invention. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only 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.

[0036] In order to further reflect the beneficial effects of the present invention, based on the technical solution of the present invention, combined with typical intelligent network scenarios and mainstream 5G-CV2X vehicle-mounted equipment, the specific applications of the optimization feedback, real-time data visualization, and refined data management functions of the digital twin platform in the present invention are demonstrated.

[0037] See also Figure 1 As shown in the figure, regarding the intelligent network connection platform of digital twins, the overall architecture of the platform is the physical layer, data layer, twin layer, function layer and application layer from the bottom layer to the top layer, among which:

[0038] 1) The physical layer and data layer are mainly used to collect real-time information on vehicles, traffic lights and traffic flow on real roads, and the data layer classifies and normalizes the data to provide necessary data support for the operation of the digital twin platform; 2) The twin layer and functional layer are the core of building a digital twin platform. On the one hand, they undertake the task of real-time mapping of the real world from the perspective of the entire life cycle and the entire process. On the other hand, they further explore the data, diagnose and analyze possible problems, and deduce and generate feedback optimization information through customized intelligent algorithms; 3) The application layer realizes refined data management through the digital twin visualization interface and platform management system deployed on the Web, such as summarizing information to generate visualization reports, dynamic data supervision, vehicle-road collaboration and background management.

[0039] Real-time collection of vehicle, traffic light and traffic flow information in the physical layer, including vehicle BSM data, traffic light phase information, remaining time of the current phase of the signal light, etc.

[0040] The data layer classifies and normalizes the data, mainly including extracting key parameters from the data collected in real time by the physical layer and parsing the optimized feedback information sent down. The data layer encodes and decodes the data in cJSON;

[0041] The twin layer is a digital modeling of all elements in the physical layer, such as vehicle 3D models, road test equipment, real road network models, virtual weather, etc., to highly restore the real traffic scene;

[0042] The functional layer further explores the data, diagnoses and analyzes possible problems, and generates feedback optimization information through customized intelligent algorithms;

[0043] In this embodiment, taking the bus priority scenario in intelligent network connection as an example, the key implementation steps of the function layer optimization feedback function are described, such as Figure 2 As shown. Among them:

[0044] S1: Extract data such as the speed, position and signal light phase information of vehicles on the road based on the data collected in real time by the data layer;

[0045] S2: Analyze the extracted data to check whether it meets the scene optimization conditions;

[0046] S3: If the detection in S2 meets the optimization conditions, the algorithm is loaded for optimization and the optimization results are generated;

[0047] S4: Send optimization information through 5G communication to match the recommended speed and traffic light control information for the vehicle, such as Figure 3 As shown in;

[0048] The real-time data collection and 5G communication optimization information sent down mentioned in the above steps are all implemented by the 5G-CV2X vehicle-mounted equipment. After offline actual testing of communication real-time performance, the present invention combined with the 5G-CV2X vehicle-mounted equipment can meet actual needs.

[0049] The digital twin visualization interface consists of real-time animation, function options and visualization reports, which accurately display the traffic conditions in the area. Taking Ma'anshan City as an example, on the left side of the interface, the vehicle activity trend and the traffic warning information of the day and the near future are displayed in real time; in the function options at the bottom of the interface, it supports functions such as full-area overview, detailed safety situation, and real-time tracking of any vehicle in the area; on the right side of the interface, detailed statistics are made on vehicle types and online status. The visualization interface realizes multi-dimensional supervision of traffic information. The visualization interface of the digital twin platform is as follows: Figure 4 shown.

[0050] The platform management system is an important part of the intelligent operation and maintenance of the digital twin platform. Its core is to make the digital twin platform easy to manage, dynamic and efficient, and flexible to expand. The system provides three main functional modules: digital twin model management module, personnel management module, and message management module.

[0051] Among them, 1) the digital model management function module supports the setting of digital model parameters, such as the deletion of parameters such as vehicle speed, fuel volume, and tire pressure; when a new model is connected, the communication protocol setting and model type addition can add or delete the specified communication protocol and 3D model in the management system to achieve linkage; to achieve different feedback functions, the system supports editing the feedback parameters of the digital model, such as feedback on the recommended speed of the vehicle, the phase of the traffic light guidance, etc. The digital model management function further improves the flexibility and redundancy of the digital twin platform. 2) The personnel management function module is to facilitate the management of personnel such as staff, authorized units, and operating units, aiming to improve the information security of the digital twin platform and accurately manage internal and external personnel. 3) The message management function module includes equipment warning information, vehicle status tracking, access equipment type and quantity statistics, and displays information in real time in the form of charts to reduce data dispersion.

[0052] In this embodiment, in order to more fully realize the refined management of data, the platform management system corresponds different data to objects one by one, and realizes the data management mode with vehicles and road test equipment as objects, such as Figure 6 shown.

[0053] Among them, Figure 6 Taking the vehicle as an example, the management system sorts out data such as model parameter configuration, vehicle real-time BSM, trigger events, feedback function calls, etc., and establishes a data management model with the vehicle as the object, which enhances the operability of the platform and reduces the management difficulty of operators.

[0054] Furthermore, in the implementation framework of digital twin technology, it is crucial to establish a unified communication protocol. Reliable communication enables close data interaction between various levels. The architecture of the present invention widely uses Socket, lightweight messaging protocol MQTT, and concise cJSON data format for information encoding.

[0055] The MQTT protocol, with its simple design and small data packet header, enables the digital twin platform to demonstrate efficient communication performance in environments with limited bandwidth and high network latency, ensuring that the digital twin platform can map real-world traffic problems in real time.

[0056] cJSON is a data format commonly used in network communications. This format uses a more compact representation method to reduce the space occupied by data storage and reduce bandwidth consumption. At the same time, cJSON data is saved in the form of key names and key values, which is convenient for reading or writing specific data.

[0057] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An intelligent network platform based on digital twins, characterized in that: The platform architecture is divided into a physical layer, a data layer, a twin layer, a functional layer, and an application layer, which are connected in sequence. The physical layer and data layer are used to collect real-time data on vehicles, traffic lights and traffic flow information on real roads, and the data layer classifies and normalizes the data to provide data support for the operation of the digital twin platform; The twin layer and functional layer are the core of building a digital twin platform, which is used to undertake the task of real-time mapping of the real world from the perspective of the entire life cycle and the entire process; at the same time, they are used to further explore the data, diagnose and analyze existing problems, and the feedback optimization function is deduced through intelligent algorithms and generates feedback optimization information; The application layer is used to achieve refined data management through the digital twin visualization interface and platform management system deployed on the Web.

2. The intelligent network connection platform based on digital twin according to claim 1, characterized in that: The feedback optimization function is implemented through an intelligent algorithm deployed in the functional layer. The algorithm detects the real-time status of vehicles and traffic facilities in the twin layer in real time and predicts potential problems.

3. The intelligent network connection platform based on digital twin according to claim 1, characterized in that: The real-time data collection function and feedback optimization function use 5G communication technology and have the ability to communicate with mainstream 5G-CV2X vehicle-mounted equipment.

4. The intelligent network connection platform based on digital twin according to claim 1, characterized in that: The visualization interface includes real-time animation, functional options and visualization reports; the visualization interface is used to accurately display the traffic conditions in the area.

5. The intelligent network connection platform based on digital twin according to claim 1, characterized in that: The platform management system is an important part of the intelligent operation and maintenance of the digital twin platform, which is used to make the digital twin platform easy to manage, dynamic and efficient, and flexible to expand; the platform management system has three functional modules: digital twin model management functional module, personnel management functional module, and message management functional module.

6. The intelligent network connection platform based on digital twin according to claim 5 is characterized in that: The digital twin model management function module supports the setting of digital model parameters; when a new model is connected, the communication protocol setting and model type addition can add or delete the specified communication protocol and 3D model in the management system to achieve linkage; to achieve different feedback functions, the digital twin model management function module supports editing the feedback parameters of the digital model; the digital twin model management function module can further improve the flexibility and redundancy of the digital twin platform.

7. The digital twin-based intelligent network platform according to claim 5, characterized in that: The personnel management function module is used to facilitate the management of staff, authorized units and operating units, aiming to improve the information security of the digital twin platform and accurately manage internal and external personnel.

8. The intelligent network connection platform based on digital twin according to claim 5, characterized in that: The message management function module includes device warning information, vehicle status tracking, access device type and quantity statistics. The message management function module displays the information in real time in the form of charts to reduce data dispersion.

9. The intelligent network connection platform based on digital twin according to claim 1, characterized in that: In order to more fully realize refined data management, the platform management system matches different data with objects one by one, realizes a data management mode with vehicles and road test equipment as objects, enhances the operability of the platform, and reduces the management difficulty of operators.

10. The intelligent network connection platform based on digital twin according to claim 1, characterized in that: A unified communication protocol is established in the implementation framework of the digital twin technology, and reliable communication enables close data interaction between various levels; Socket, lightweight messaging protocol MQTT, and concise cJSON data format are used in the implementation framework of the digital twin technology for information encoding; the lightweight messaging protocol MQTT protocol, with its simple design and small data packet header, enables the digital twin platform to exhibit efficient communication performance in an environment with limited bandwidth and high network latency, ensuring that the digital twin platform can map real traffic problems in real time.

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