本文選題：微觀交通仿真 + 三維　； 參考：《北京郵電大學(xué)》2014年碩士論文

【摘要】：隨著城市現(xiàn)代化水平的提高,道路的承載能力與使用者需求之間的矛盾日益突出。運(yùn)用智能交通系統(tǒng)來解決城市道路交通問題越來越受到人們的重視。微觀交通仿真作為智能交通研究的重點(diǎn),將智能交通與計(jì)算機(jī)仿真有機(jī)的結(jié)合起來,對提高城市道路交通智能化具有深遠(yuǎn)意義。 論文圍繞如何將虛擬現(xiàn)實(shí)技術(shù)應(yīng)用于微觀交通仿真,主要通過調(diào)用底層三維圖形庫OpenGL來構(gòu)建微觀交通仿真的三維場景。論文首先對計(jì)算機(jī)圖形學(xué)的基礎(chǔ)原理進(jìn)行理論研究,掌握基本的三維空間平移變換,旋轉(zhuǎn)變換以及投影變換,介紹了OpenGL的固定圖形渲染流水線,實(shí)現(xiàn)對真實(shí)城市交通場景的快速三維建模和仿真；然后對微觀交通仿真模型中的發(fā)車模型,跟馳模型和換道模型進(jìn)行了深入研究,在此基礎(chǔ)上充分利用微觀交通仿真的特點(diǎn),對三維場景的渲染效果進(jìn)行了增強(qiáng)現(xiàn)實(shí)感處理,添加了光照陰影,視點(diǎn)追蹤等特殊效果。與此同時(shí),針對交通仿真場景隨時(shí)間動(dòng)態(tài)變化的特點(diǎn),通過運(yùn)用LOD層次細(xì)節(jié),圖形硬件加速和優(yōu)化場景管理來進(jìn)一步提高對復(fù)雜交通場景的渲染速度。 最后在系統(tǒng)實(shí)現(xiàn)階段采用面向?qū)ο缶幊趟枷?以MFC作為基礎(chǔ)框架運(yùn)用OpenGL實(shí)現(xiàn)了微觀交通仿真的三維場景建模和仿真優(yōu)化,在微觀仿真效果與仿真效率之間取得了較好平衡,并通過仿真實(shí)驗(yàn)結(jié)果驗(yàn)證了系統(tǒng)設(shè)計(jì)理論的正確性。
[Abstract]:With the improvement of the level of urban modernization, the contradiction between the carrying capacity of roads and the needs of users is becoming increasingly prominent. People pay more and more attention to using intelligent transportation system to solve urban road traffic problems. Micro traffic simulation is the focus of intelligent traffic research. It is of great significance to improve the intelligence of urban road traffic by combining intelligent traffic with computer simulation. This paper focuses on how to apply virtual reality technology to micro traffic simulation, mainly by calling the bottom 3D graphics library OpenGL to construct the 3D scene of micro traffic simulation. In this paper, the basic principle of computer graphics is studied, and the basic translation transformation, rotation transformation and projection transformation in 3D space are mastered, and the OpenGL fixed graphics rendering pipeline is introduced. Realize the fast 3D modeling and simulation of the real urban traffic scene, and then deeply study the departure model, the car-following model and the change of track model in the microscopic traffic simulation model, and make full use of the characteristics of the microscopic traffic simulation. The rendering effect of 3D scene is enhanced and special effects such as illumination shadow and view tracking are added. At the same time, according to the dynamic change of traffic simulation scene with time, the rendering speed of complex traffic scene can be further improved by using LOD hierarchical details, graphics hardware acceleration and optimization of scene management. At last, the object-oriented programming idea is adopted in the realization of the system, and the 3D scene modeling and simulation optimization of microscopic traffic simulation is realized by using MFC as the basic frame. The balance between the microscopic simulation effect and the simulation efficiency is obtained. The simulation results verify the correctness of the system design theory.
【學(xué)位授予單位】：北京郵電大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：U495;TP391.9

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