本文選題：有軌電車　切入點：路口優(yōu)先　出處：《西南交通大學(xué)》2017年碩士論文

【摘要】：城市內(nèi)機動車輛數(shù)量顯著增多導(dǎo)致交通壓力不斷增大,越來越多的城市選擇建設(shè)有軌電車作為改善城市交通現(xiàn)狀的公共交通工具。傳統(tǒng)的路口信號方案使得有軌電車在路口停車等待,造成有軌電車的延誤增加,降低了其運行效率,而現(xiàn)有的有軌電車信號優(yōu)先系統(tǒng)只針對單個路口,沒有考慮沿線多個路口間的信號相關(guān)性,難以描述實際的交通狀況。因此,本文設(shè)計了一種基于路口信號協(xié)調(diào)的有軌電車路口信號優(yōu)先控制方法,在不對社會車輛造成嚴重影響的基礎(chǔ)上實現(xiàn)有軌電車的路口信號優(yōu)先。本文利用定位技術(shù)、嵌入式技術(shù)、無線通信技術(shù),設(shè)計了有軌電車路口信號優(yōu)先控制器,實現(xiàn)有軌電車在路口的優(yōu)先通行。系統(tǒng)包括信號協(xié)調(diào)優(yōu)先模塊、數(shù)據(jù)存儲模塊、無線網(wǎng)絡(luò)通信模塊、主控制器和路口上位機。信號協(xié)調(diào)優(yōu)先算法是在傳統(tǒng)的韋伯斯特信號配時基礎(chǔ)上,通過對路口車輛延誤的分析,以延誤最小為目標,路口信號相位差為參數(shù),利用粒子群算法對延誤函數(shù)進行優(yōu)化,實現(xiàn)多路口的信號協(xié)調(diào)控制,利用有軌電車路口接近位置消息,計算其到達路口時間,利用時間均分、綠燈時間延長和紅燈時間縮短相結(jié)合的方法為有軌電車提供路口優(yōu)先通行信號。數(shù)據(jù)存儲模塊通過主控芯片利用SPI 口操作FLASH模塊,對監(jiān)控中心發(fā)送的整備數(shù)據(jù)進行存儲和讀取;無線局域網(wǎng)通信模塊通過主控芯片利用串口操作無線模塊,連接AP實現(xiàn)與監(jiān)控中心、車載等設(shè)備的通信,獲取有軌電車的整備時間、列車速度、接近位置等信息;主控芯片采用CORTEX-M3架構(gòu)的ARM芯片作為處理器,通過無線網(wǎng)絡(luò)通信接收車載和管理端的消息和命令并響應(yīng),根據(jù)當前路口交通狀況、整備數(shù)據(jù)和信號協(xié)調(diào)優(yōu)先模塊的方案控制信號燈;上位機軟件則是利用MFC編程實現(xiàn)路口社會車流量的模擬以及路口優(yōu)先狀態(tài)的監(jiān)測,為調(diào)試帶來了方便。通過系統(tǒng)測試,路口能夠?qū)崟r地為有軌電車提供優(yōu)先信號,達到了預(yù)期的效果,實現(xiàn)了有軌電車在路口處享有優(yōu)先通行權(quán)。實驗結(jié)果表明論文研究的路口信號優(yōu)先控制系統(tǒng)具有實時性強,可靠性高且具有可擴展性等優(yōu)點,能夠在降低沿線社會車輛延誤的同時,實現(xiàn)有軌電車的信號優(yōu)先,對提高有軌電車運行效益起著積極的作用,可減少有軌電車到達路口時不必要的停車等待時間,具有一定的現(xiàn)實意義。
[Abstract]:The increasing number of motor vehicles in cities leads to increasing traffic pressure. More and more cities choose to build trams as public means of transportation to improve the current situation of urban traffic.The traditional intersection signal scheme makes the tram stop and wait at the intersection, resulting in the increase of the tram delay and the decrease of its running efficiency. However, the existing tramway signal priority system only aims at a single intersection.It is difficult to describe the actual traffic condition without considering the signal correlation between several intersections along the route.Therefore, this paper designs a signal priority control method of tram intersection based on intersection signal coordination, which realizes the intersection signal priority of tram without serious impact on social vehicles.In this paper, the signal priority controller of tram intersection is designed by using positioning technology, embedded technology and wireless communication technology.The system includes signal coordination priority module, data storage module, wireless network communication module, main controller and intersection host computer.Based on the traditional Webster signal timing algorithm, the signal coordination priority algorithm is based on the analysis of the vehicle delay at the intersection, taking the minimum delay as the target and the phase difference of the intersection signal as the parameter, the particle swarm optimization algorithm is used to optimize the delay function.Realize the signal coordination control of multi-intersection, use tram intersection approach position message, calculate its arrival time, use time equal share,The combination of green time extension and red light time shortening provides a priority traffic signal for trams.The data storage module uses the SPI port to operate the FLASH module through the main control chip to store and read the complete data sent by the monitoring center, and the wireless local area network communication module uses the serial port to operate the wireless module through the main control chip.Connecting AP with monitoring center, on-board and other equipment to get the information of train preparation time, train speed, approaching position, etc. The main control chip uses ARM chip based on CORTEX-M3 architecture as the processor,Receiving messages and commands from vehicle and management terminal through wireless network communication and responding to them, according to the current traffic condition of intersection, preparing the scheme of data and signal coordination priority module to control the signal lamp;The upper computer software uses MFC to realize the simulation of the traffic flow and the monitoring of the priority state of the intersection, which brings convenience to the debugging.Through the system test, the intersection can provide the priority signal for the tram in real time, achieve the expected effect, and realize the tram enjoy the priority right at the intersection.The experimental results show that the intersection signal priority control system studied in this paper has the advantages of high real-time, high reliability and extensibility. It can reduce the delay of the social vehicles along the route and realize the signal priority of the tram at the same time.It plays an active role in improving the efficiency of tram operation, and can reduce the unnecessary waiting time when the tram arrives at the intersection, which is of certain practical significance.
【學(xué)位授予單位】：西南交通大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：U491.54

【參考文獻】

相關(guān)期刊論文 前10條

1 曹振民;陳年生;馬強;武凌;武婧;;基于ESP8266的無線控制電路設(shè)計[J];工業(yè)控制計算機;2017年01期

2 蘇海洋;謝軍;徐凱琳;;基于51單片機外置存儲器字庫系統(tǒng)的設(shè)計[J];電子世界;2017年02期

3 易立富;;現(xiàn)代有軌電車的路口優(yōu)先策略及信號控制技術(shù)[J];鐵道通信信號;2016年11期

4 楊澤皓;;有軌電車信號優(yōu)先系統(tǒng)的研究[J];科技創(chuàng)業(yè)月刊;2016年17期

5 甘嵐;;現(xiàn)代有軌電車的發(fā)展及在我國的現(xiàn)狀[J];四川水泥;2016年08期

6 蔣家升;陸橋;;有軌電車交通工程信號系統(tǒng)方案分析[J];信息化研究;2016年03期

7 鄭偉;;現(xiàn)代有軌電車信號系統(tǒng)方案與關(guān)鍵技術(shù)研究[J];鐵道通信信號;2016年03期

8 余世敏;;現(xiàn)代有軌電車信號優(yōu)先對道路交通的影響[J];中國市政工程;2016年01期

9 虞笑晨;;德國現(xiàn)代有軌電車平交口信號優(yōu)先[J];城市道橋與防洪;2015年12期

10 吳蘇婷;王雨;賈文崢;劉書浩;;英國有軌電車行業(yè)管理研究[J];交通運輸研究;2015年04期

，

本文編號：1715896