Pedestrian simulation method and device based on discrete element simulation platform

Abstract

The invention discloses a pedestrian simulation method and device based on a discrete element simulation platform. Large-scale pedestrian movement can be simulated, and deep research and development on the large-scale pedestrian movement by related personnel are supported. The method comprises the steps that firstly, physical attribute data of pedestrians to be simulated are obtained, and the physical attribute data are input into the discrete element simulation platform to structure a pedestrian model of the pedestrians to be simulated; secondly, geometric attribute data of a channel to be simulated are obtained, and the geometric attribute data are input into the discrete element simulation platform to structure a channel model of the channel to be simulated; thirdly, a pedestrian particle stress model is structured based on a social force model and a contact model of a particle discrete element method; fourthly, the pedestrian model is arranged in the channel model, the stress model is used for updating the movement state of pedestrian particles of the pedestrian model in real time, and thus pedestrian stream simulation is carried out on the pedestrian to be simulated.

Description

technical field [0001] The invention relates to the technical field of pedestrian simulation, in particular to a pedestrian simulation method and device based on a discrete element simulation platform (EDEM platform). Background technique [0002] With the increase in demand for large-scale transportation hubs, large-scale passenger flows in and out of the station will be congested at some bottlenecks during peak traffic hours or when emergencies occur. Therefore, simulation software is used to simulate pedestrian flow movements to find pedestrian flow patterns. In order to find the dangerous area in the hub when the large-scale pedestrian flow is moving. [0003] For simulation software, commonly used pedestrian simulation software includes Legion from the UK and Vissim from Germany. These simulation software are pedestrian simulation platforms based on embedded models that cannot be redeveloped (Legion and Vissim manuals). However, the commonly used microscopic simulation...

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Problems solved by technology

However, the commonly used microscopic simulation software (such as Vissim) has low calculation efficiency for large-scale data input, and the simulation operation time is long or cannot be simulated, and the pedestrian simulation software developed by foreign companies that does not have independent property rights in my country cannot reproduce the embedded model. Therefore, traditional simulation software can neither simulate large-scale pedestrian movement nor support Chinese scholars to conduct in-depth research and development.

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