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Construction of simulation road network platform system, method, equipment and storage medium based on vissim

A simulation platform and road network technology, applied in design optimization/simulation, special data processing applications, etc., can solve the simulation requirements that cannot meet the real-time acquisition and interaction of vehicle signal data in simulation, and the lack of openness and versatility of Internet of Vehicles applications. , lack and other problems, to achieve the effect of facilitating algorithm testing and verification, improving versatility, and improving accuracy

Active Publication Date: 2022-01-07
SHENZHEN URBAN TRANSPORT PLANNING CENT
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AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that the existing technology cannot meet the simulation requirements of real-time acquisition of vehicle and signal data in the simulation and interact with them, as well as the lack of practical methods for road network construction in urban central areas, and the lack of openness and versatility in the application of the Internet of Vehicles, the present invention Provide a platform system, method, device and storage medium for building a simulated road network based on Vissim, use Vissim to build a simulated road network in the city center, and use Vissim COM interface for secondary development to build the data model of the roadside unit RSU and the vehicle-mounted unit OBU, The data is packaged for intersections and vehicles, which expands and simplifies the application, and facilitates the application of related algorithms such as the Internet of Vehicles in the simulation test and verification of the city center

Method used

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  • Construction of simulation road network platform system, method, equipment and storage medium based on vissim
  • Construction of simulation road network platform system, method, equipment and storage medium based on vissim
  • Construction of simulation road network platform system, method, equipment and storage medium based on vissim

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specific Embodiment approach 1

[0052] Specific implementation mode 1: Constructing a simulated road network platform system based on Vissim, the overall research ideas are as follows figure 1As shown, the system utilizes the Vissim tool to construct, including a data collection preparation module, a simulation module and a parameter correction module; wherein the traffic data collected includes traffic road network data, traffic demand data and traffic control data; the parameter correction module performs Information verification includes section flow verification and road section speed verification; the established data model includes RSU and OBU, adopts V2X application layer standards, and traffic information includes basic safety information, roadside information, roadside safety information, traffic light phase and timing news and map news;

[0053] The data collection preparation module is responsible for collecting traffic data and initializing information; the information is transmitted to the simul...

specific Embodiment approach 2

[0054] Specific implementation method two: build a simulation road network platform based on Vissim, including road network, signal, traffic demand (morning peak, flat peak, evening peak), etc., use Python language to carry out secondary development through Vissim Com interface, and simulate the road network of the system , Vehicles, signals and other data are encapsulated according to the roadside unit (RBU) and on-board unit (OSU) data model, and provided to the algorithm and vehicle-road collaborative application test and verification through the RPC communication architecture.

[0055] 1. Road network construction:

[0056] The simulated road network is constructed as figure 2 , divided into data preparation, including CAD drawings of the simulated road network such as image 3 (The base map of the road network in the central area of ​​a certain city is the construction design drawing), the initial demand of traffic demand OD (OD refers to the survey, that is, the survey...

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Abstract

The present invention relates to a simulated road network platform in the central area of ​​the city, in particular to a Vissim-based simulated road network platform system, method, device and storage medium, belonging to the field of vehicle-road collaborative simulation; In the field of simulation application in the central area, the real-time acquisition of data such as vehicles and signals in the simulation and the simulation requirements of interaction are based on Vissim to build a simulation road network platform including road network, signals, traffic requirements, etc., and use Python language to develop through the Vissim Com interface. The road network, vehicles, signals and other data of the simulation system are encapsulated according to the data model of the roadside unit RSU and the vehicle-mounted unit OBU, and provided to the algorithm and vehicle-road collaborative application test and verification through the RPC communication architecture; the traffic is corrected through the section flow and road speed Model parameters improve the accuracy, timeliness and interactivity of application simulation scenarios, and algorithm test verification improves the versatility of the platform.

Description

technical field [0001] The invention relates to a simulated road network platform in a central city area based on Vissim, in particular to a system, method, equipment and storage medium for constructing a simulated road network platform based on Vissim, and belongs to the field of vehicle-road collaborative simulation. Background technique [0002] With the development of Internet of Vehicles technology, there is an urgent demand for simulation in urban central areas due to the constraints of real vehicle testing in urban central areas. TransModeler and others are biased towards the field of traffic planning. Tang Rui et al. build a traffic simulation platform based on TransCAD and TransModeler, which is mainly used for traffic planning and design decision-making and business support. In the simulation application field, the simulation requirements for real-time acquisition of vehicle, signal and other data in the simulation and interaction. [0003] Yao Zhihong integrated ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/20
CPCG06F30/20
Inventor 田锋周勇王晋云屈新明周子益刘星阚倩
Owner SHENZHEN URBAN TRANSPORT PLANNING CENT
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