公交优先交叉口信号控制微缩仿真系统研究-计算机技术专业论文.docxVIP

万方数据 万方数据 Research on Micro Simulation System of Intersection Signal Control of Bus P riority A Dissertation Submitted for the Degree of Master Candidate：Li Ruodan Supervisor：Prof. An Yisheng Chang’an University, Xi’an, China 摘 要 智能交通系统 ITS（Intelligent Transportation System, ITS）是现阶段交通运输系统乃 至未来交通运输系统的主要研究领域和重要发展方向，而智能道路系统（Intelligent Roadway System, IRS）又是 ITS 的重要组成部分，一直是交通发达国家研究的热点。基 于该系统，本文提出了交叉口车路协同实验系统框架、实现方法并进行了系统平台的搭 建。该实验平台主要实现的功能包括：仿真小车自动避碰，仿真小车定位，无线数据收 发，交通信号灯配时控制等。进而通过对交叉口交通信号灯的配时控制，减少晚点公交 车在交叉口的延误，提高公交车的准点率。本文的主要工作如下： 1、设计了双车道交叉口的道路模型，搭建双车道交叉口硬件平台，确定了仿真小 车的运行路线。 2、规划仿真小车的行驶路线，实现智能仿真小车在既定环路运行，包括仿真小车 运行的基本动作、仿真小车自动避碰、仿真小车定位及仿真小车通信的功能。 3、设计交通信号灯控制系统，包括交通信号灯硬件平台的搭建，交通信号灯相位 及配时控制，交通信号灯与仿真小车之间的无线通信。 4、设计 了基于公交车辆优先的交通信号灯配时方案，讨论了当有少量公交车通过交 叉口时的交通信号灯配时方案和有较多公交车排队通过时交通信号灯的配时方案，后者 利用模糊逻辑控制的方法调节交通信号灯的配时方案。 关键词：智能交通系统，交通信号控制，交叉口，公交优先，模糊控制 i Abstract Intelligent Transpor tation System is the main and impor tant development direction in the field of research of transpor tation systems for the present stage, even for the future transpor tation system. Intelligent Road System is a major part of ITS, which has been the research hotspo ts in developed countries. Based on the system, this paper puts for ward the intersection road-vehicle collabo rative experiment system framework and the corresponding implementation method and builds the system platfor m. The main functions which realized by the expe riment platfor m is described as follows: avoiding vehicle automatic collision, positioning vehicle, wireless data transceiver, controlling traffic light timing, etc. And through the intersection traffic signal lights of the timing control, reducing time delay and increasing punctuality of the later bus in the intersection. In this paper, the mainly work is as follows: Design a two- lane road intersection model, set up the hardware platform for two- lane intersection, and determine the running routes for vehicles. Plan vehicle’s running route in order to achieve keeping the ve