A Modeling Method for Traffic Faults in Vehicle Motion Simulation

Abstract

The invention discloses a unified modeling method for traffic failure in vehicle motion simulation, the steps of which include: modeling traffic failure intensity to uniformly describe various traffic failure states and time-space evolution processes, and transforming traffic failure into quantifiable parameters Representation; the modeling of the relationship between traffic failure intensity and shadow vehicle state transforms the traffic failure intensity into the state of shadow vehicles; the vehicle motion simulation based on shadow vehicles combines the movement of shadow vehicles with the movement of vehicles in the entire road network, so that shadow vehicles participate in the In the simulation of vehicle movement in the entire road network. The present invention transforms the description of traffic faults into the description of the state of shadow vehicles, so that any form of traffic faults can be modeled uniformly and conveniently; the motion of shadow vehicles is combined with the motion of vehicles in the entire road network, and by modifying Various attributes of the shadow vehicle to edit various traffic failures, improving the interactivity during the simulation.

Description

technical field [0001] The invention relates to the technical fields of traffic simulation and computer graphics, in particular to a modeling method for traffic failure in vehicle motion simulation. Background technique [0002] Vehicle motion simulation is an important part of urban scene modeling. A large number of 3D virtual simulations need to incorporate realistic vehicle motion simulation effects, such as virtual earth, city engine, city life and other application software and games. Therefore, with the rapid development of computer graphics technology, vehicle motion simulation technology has attracted more and more scholars' research. [0003] Various types of traffic failures will occur during the movement of vehicles, such as some traffic failures caused by lines such as line closures caused by damaged line facilities; and some traffic failures caused by vehicles such as vehicle breakdowns and serial collisions. In the existing vehicle motion simulation technolog...

AI Technical Summary

Problems solved by technology

This method is suitable for long-lasting faults. For temporary faults, it is necessary to frequently modify the static road network line data during the simulation process, which is not conducive to the maintenance of line data, but also reduces the simulation efficiency.

In addition, for traffic failures caused by vehicles, existing methods generally use separate control methods to control the motion state of the accident vehicle. This method requires separate control of the accident vehicle for each frame, which is cumbersome and not conducive to interactive editing.

[0004] How to use a unified method to model various traffic failures, so as to facilitate various editing and modification of various traffic failures during the vehicle motion simulation process, this problem has not been well resolved

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