Research On Simulation Modeling And Application Of Coal Multimodal Transport System Based On Multi Agent

The coal multi-modal transport system is a non-linear macroscopical system involving complicated links,numerous participants,and complex network dynamics.Different modes of transport,operations and links will deeply affect system performance.It’s a feasible method for studying complex dynamic systems by using simulation technology to describe coal multimodal transport system and verifying the feasibility of optimization strategy.This paper takes the coal multimodal transportation system as the research object,analyzes the network composition and operation mechanism of the system and designs the model framework of the coal multimodal transport system based on the multi-agent theory.On this baisis,the system is divided into function Agents and defined interaction and communication methods.Through the combination of simulation software,it provides a feasible research method for system optimization and system effectiveness analysis by building the simulation model of coal multimodal transport system.The main research results obtained in this paper are as follows:First of all,the composition and function of the coal multimodal transport system are determined.Based on the analysis of the composition and operation model of coal multimodal transport system,the multi-agent theory is introduced into coal multimodal transport system.This paper analyzes the adaptability of the structure and function between coal multi-modal transport system and the multi-agent system,and proposes the multi-agent theory to guide the building of the simulation modeling of coal multi-modal transport.Secondly,a multi-agent based concept model of coal multimodal transport is established.This paper analyzes the composition and function of Agents which to correspond with the system entities,and establishes the overall framework of multi-agent model suitable for the coordinated development of each node of the coal multimodal transport system.This paper discusses the interaction mechanism of multi-agent model and the communication and negotiation mechanism required for logistics activities,and then proposes the concept modeling method of coal multimodal transport system.Thirdly,based on the simulation software,the exploratory development of the agent-based system simulation model is carried out.This section mainly introduces Agents interaction and communication in the model,and verifies the rationality and universality of the established multimodal transport model.Finally,based on the multi-agent simulation model of coal transportation from South to North,the transport capacity and the local damage of the transport network are studied.The research shows the relevant influencing factors,bottleneck of the system and the response to local damage of the transport network and proves the coal transportation system simulation model based on multi Agent has a variety of research functions.This paper aims at using multi-agent theory to analyze the structural relation of coal multi-modal transport system,and establish conceptual model and simulation model.The dynamic characteristics of the transportation network are analyzed through the simulation test,and it is of great engineering value and academic significance to study the problems of large-scale macro-logistics network system.