本文選題：多交叉口 + 無(wú)模型自適應(yīng)控制��； 參考：《北京交通大學(xué)》2017年碩士論文

【摘要】：交叉口被稱為城市路網(wǎng)的“咽喉地帶”,作為不同方向的車(chē)流聚集和消散的地方,其不僅是交通擁堵的癥結(jié)所在,也是最易發(fā)生交通事故的地方。若交叉口處信號(hào)配時(shí)不當(dāng),則容易誘發(fā)擁堵或事故,進(jìn)而影響整條干線甚至附近整個(gè)區(qū)域的交通運(yùn)行狀況。所以改善交通管控措施,尤其是改進(jìn)交叉口信號(hào)控制方案,對(duì)提高城市道路交通的通暢性和安全性具有重大意義。交通路網(wǎng)是一個(gè)復(fù)雜的系統(tǒng),很難建立其精確的數(shù)學(xué)模型,基于此,本文采用分散估計(jì)分散控制型無(wú)模型自適應(yīng)控制(MFAC)算法對(duì)多交叉口信號(hào)系統(tǒng)進(jìn)行控制。該算法不需對(duì)交通系統(tǒng)進(jìn)行數(shù)學(xué)建模,且其采用分散控制思想設(shè)計(jì)控制器,較集中式控制器更為簡(jiǎn)單、實(shí)用。本文的主要內(nèi)容如下:首先,基于原始的分散估計(jì)分散控制型MFAC算法,并考慮此算法在實(shí)際應(yīng)用過(guò)程中的問(wèn)題,本文對(duì)原算法進(jìn)行了改進(jìn)。第一,考慮到交叉口之間的距離對(duì)互聯(lián)影響項(xiàng)的作用,提出了“距離懲罰因子”的概念;第二,為防止綠燈時(shí)間變化過(guò)大對(duì)交通狀態(tài)產(chǎn)生不良影響,加入了對(duì)綠燈時(shí)間變化的約束。其次,利用VISSIM微觀交通仿真軟件對(duì)北京市望京地區(qū)部分區(qū)域路網(wǎng)的信號(hào)控制問(wèn)題進(jìn)行了仿真研究。在算法實(shí)現(xiàn)方面,采用了 VB和Matlab混合編程的方法。仿真結(jié)果表明,該控制算法能夠有效地對(duì)VISSIM中的多交叉口路網(wǎng)信號(hào)系統(tǒng)進(jìn)行控制,并且取得了良好的控制效果。最后,采用杭州鼎鵬交通科技有限公司研發(fā)的“GRANDTRANS”系列交通控制系統(tǒng),進(jìn)行半實(shí)物仿真平臺(tái)的搭建,對(duì)此系統(tǒng)進(jìn)行了二次開(kāi)發(fā),驗(yàn)證了該控制算法在真實(shí)的交通信號(hào)控制器上的可行性和有效性。
[Abstract]:The intersection is called the "throat zone" of the urban road network. As a place where the traffic flow is gathered and dissipated in different directions, it is not only the crux of traffic congestion but also the place where traffic accidents are most likely to occur. If the signal timing is improper at the intersection, it can easily induce congestion or cause, and then affect the whole trunk line and even the whole area nearby. Therefore, the improvement of traffic control and control measures, especially the improvement of the intersection signal control scheme, is of great significance to improve the smooth and safety of urban road traffic. The traffic network is a complex system, it is difficult to establish its precise mathematical model. Based on this, this paper uses Decentralized Estimation decentralized control model without model. The adaptive control (MFAC) algorithm controls the multi intersection signal system. The algorithm does not need to model the traffic system, and it adopts the decentralized control idea to design the controller. It is more simple and practical than the centralized controller. The main contents of this paper are as follows: first, based on the original decentralized decentralized MFAC algorithm, it is tested and tested. Considering the problem of this algorithm in practical application, the original algorithm is improved in this paper. Firstly, the concept of "distance penalty factor" is put forward considering the effect of the distance between the intersections on the interconnected effects. Second, in order to prevent the excessive change of the time of the green light on the traffic state, the change of the time of the green light is added. Secondly, the VISSIM micro traffic simulation software is used to simulate the signal control problem of some regional road networks in Wangjing area of Beijing. In the implementation of the algorithm, the hybrid programming method of VB and Matlab is adopted. The simulation results show that the control algorithm can effectively enter the multi intersection network signal system in VISSIM. In the end, the hardware in the loop simulation platform is built with the "GRANDTRANS" series of traffic control system developed by Hangzhou Ding Peng Traffic Technology Co., Ltd., and the system has been developed two times, which verifies the feasibility and effectiveness of the control algorithm on the real traffic signal controller. Sex.

【學(xué)位授予單位】：北京交通大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：U491.23

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本文編號(hào)：1807271