Intersection hardware-in-the-loop dynamic microscopic simulation system and its simulation method

Abstract

The invention discloses an intersection semiphysical dynamic microcosmic simulation system which comprises an intersection microcosmic simulation module, a light emitting diode (LED) lamp hardware module, a traffic light hardware module, a signal timing control module and an intersection real object demonstration platform, wherein the signal timing control module sends a timing parameter to the intersection microcosmic simulation module and the traffic light hardware module and controls a traffic light of the intersection microcosmic simulation module according to feedback information of the traffic light hardware module; the intersection microcosmic simulation module simulates a situation of vehicles at an intersection and calculates an average delay of each vehicle at the intersection; the traffic light hardware module controls a traffic light and a count-down digital tube of the intersection real object demonstration platform according to the timing parameter; the LED hardware module controls states of LED lamps on the intersection real object demonstration platform according to state data of the LED lamps; and the intersection real object demonstration platform demonstrates a process that the vehicles pass through the intersection in the form of real objects. By the intersection semiphysical dynamic microcosmic simulation system, an intersection traffic light control system and a computer simulation technology are combined together, so that an aim of integrating simulation research and application practice is fulfilled.

Description

technical field [0001] The invention belongs to the field of traffic simulation and computer technology, and relates to a semi-physical dynamic microscopic simulation system of an intersection and a simulation method thereof. Background technique [0002] Simulation, as the name suggests, refers to the imitation of real objects, also known as "simulation", which refers to artificially simulating part or the entire operation process of a real system in order to solve problems. However, the traffic conditions at level intersections are complex, which is the bottleneck restricting the development of traffic. Traffic simulation is an important tool to study complex traffic problems. Its purpose is to use computer technology to reproduce complex traffic objects, explain and analyze these phenomena, find out the crux of the problem, and finally optimize the traffic system under study. Traffic simulation can clearly assist in the analysis and prediction of the locations and cause...

AI Technical Summary

Problems solved by technology

However, these traffic simulation software are only limited to the research and demonstration on the computer, and do not involve the development of matching research application hardware

Moreover, college researchers do not have a physical demonstration platform for visually demonstrating traffic simulation experiments in the process of intersection signal control research and teaching, which leads to researchers and students not being able to fully understand the practical feasibility and significance of various signal control schemes

Furthermore, the researchers separated the computer simulation system of intersection signal control from the real signal control system, and only did simulation experiments on the computer, resulting in little practical applicability of the research results

This makes the academic research on traffic flow unable to be combined with practice, which brings great troubles to follow-up research and study.

At present, the urban traffic control system is quite perfect in the configuration of hardware and software, but the function of signal control at the intersection is very lacking, which makes the utilization rate of time and space at the intersection too low, resulting in excessive vehicle delays

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