【摘要】：隨著國民經(jīng)濟(jì)的迅速發(fā)展,人們對鐵路出行的要求不斷提高,不僅要求列車運(yùn)行速度提高以縮短旅行時(shí)間,還要求列車更加舒適、安全。通過引進(jìn)國外的高速鐵路技術(shù),在鐵路第六次大提速時(shí),開行了運(yùn)營速度為200km/h級(jí)別的動(dòng)車組。隨后,國內(nèi)鐵路裝備企業(yè)通過對引進(jìn)技術(shù)的不斷消化吸收、再創(chuàng)新,已經(jīng)掌握動(dòng)車組的相關(guān)技術(shù),自主研發(fā)生產(chǎn)了速度更高的動(dòng)車組。然而,作為動(dòng)車組核心技術(shù)之一的列車網(wǎng)絡(luò)技術(shù),相關(guān)核心設(shè)備仍然需要從國外購買。為滿足列車網(wǎng)絡(luò)控制系統(tǒng)的國產(chǎn)化需求,并適應(yīng)列車網(wǎng)絡(luò)技術(shù)的發(fā)展,必須研究、發(fā)展具有自主知識(shí)產(chǎn)權(quán)的列車網(wǎng)絡(luò)技術(shù)。本文以CRH2動(dòng)車組的車輛級(jí)網(wǎng)絡(luò)系統(tǒng)為基礎(chǔ),根據(jù)IEC61375-3-4標(biāo)準(zhǔn),建立了動(dòng)車組車輛級(jí)網(wǎng)絡(luò)的仿真系統(tǒng),對研究基于以太網(wǎng)技術(shù)構(gòu)建動(dòng)車組的車輛級(jí)網(wǎng)絡(luò),發(fā)展具有自主知識(shí)產(chǎn)權(quán)的以太網(wǎng)列車通信網(wǎng)絡(luò)具有一定的參考意義。 首先,分析了以太網(wǎng)的通信原理、實(shí)時(shí)性改進(jìn)方法,以及TCP/IP協(xié)議族中重要的TCP和IP協(xié)議。其次,研究了TCN體系中的IEC61375-3-4標(biāo)準(zhǔn),分析了在該標(biāo)準(zhǔn)中描述的使用以太網(wǎng)技術(shù)構(gòu)建列車車輛級(jí)網(wǎng)絡(luò)的相關(guān)技術(shù)和要求。接著,在CRH2動(dòng)車組車輛級(jí)網(wǎng)絡(luò)功能和傳輸信息分析的基礎(chǔ)上,采用以太網(wǎng)技術(shù),參考IEC61375-3-4標(biāo)準(zhǔn)中的網(wǎng)絡(luò)拓?fù)浣Y(jié)構(gòu),設(shè)計(jì)了動(dòng)車組車輛級(jí)網(wǎng)絡(luò)仿真系統(tǒng)的總體方案。進(jìn)一步設(shè)計(jì)了仿真軟件的通信模型、幀格式,以及終端裝置仿真軟件和車載設(shè)備仿真軟件。 最后,利用工控計(jì)算機(jī)、以太網(wǎng)卡、交換機(jī)等硬件和設(shè)計(jì)的仿真軟件共同構(gòu)建了動(dòng)車組車輛級(jí)網(wǎng)絡(luò)仿真系統(tǒng)。 經(jīng)過系統(tǒng)測試,表明所建立的動(dòng)車組車輛級(jí)網(wǎng)絡(luò)仿真系統(tǒng)能夠?qū)崿F(xiàn)模擬CRH2動(dòng)車組車輛級(jí)網(wǎng)絡(luò)的列車運(yùn)行控制指令傳輸、設(shè)備狀態(tài)的實(shí)時(shí)監(jiān)控、車上試驗(yàn)的指令傳輸和結(jié)果收集、故障跟蹤數(shù)據(jù)的收集與傳輸、設(shè)備時(shí)刻的同步等功能,達(dá)到了設(shè)計(jì)時(shí)的功能需求。同時(shí),通過分析動(dòng)車組車輛級(jí)網(wǎng)絡(luò)仿真系統(tǒng)的網(wǎng)絡(luò)性能,可以為研究采用以太網(wǎng)技術(shù)構(gòu)建實(shí)際動(dòng)車組的網(wǎng)絡(luò)控制系統(tǒng)提供一定參考。
[Abstract]:With the rapid development of the national economy, people's requirements for railway travel are constantly increasing, not only to increase the speed of train operation in order to shorten the travel time, but also to require the train to be more comfortable and safe. Through the introduction of foreign high-speed railway technology, in the sixth railway speed-up, the operation speed of the 200km/h-grade EMU was opened. Subsequently, domestic railway equipment enterprises through the continuous digestion and absorption of the imported technology, re-innovation, has mastered the EMU related technology, independent research and development and production of higher speed EMU. However, as one of the core technologies of EMU, the related core equipment still needs to be purchased from abroad. In order to meet the domestic demand of train network control system and adapt to the development of train network technology, it is necessary to study and develop the train network technology with independent intellectual property rights. Based on the vehicle-level network system of CRH2 EMU, the simulation system of EMU vehicle-level network is established according to IEC61375-3-4 standard, and the vehicle-grade network of EMU based on Ethernet technology is studied in this paper. The development of Ethernet train communication network with independent intellectual property has certain reference significance. Firstly, the communication principle of Ethernet, the real-time improvement method, and the important protocols of TCP and IP in TCP/IP protocol family are analyzed. Secondly, the IEC61375-3-4 standard in the TCN system is studied, and the related technologies and requirements of constructing the train vehicle-grade network using Ethernet technology described in the standard are analyzed. Then, based on the analysis of the function and transmission information of the CRH2 EMU vehicle-level network, the overall scheme of the EMU vehicle-level network simulation system is designed by using Ethernet technology and referring to the network topology of the IEC61375-3-4 standard. Furthermore, the communication model, frame format, terminal device simulation software and vehicle device simulation software are designed. Finally, an EMU vehicle-level network simulation system is constructed by using hardware such as industrial control computer, Ethernet card, switch and simulation software. Through the system test, it is shown that the EMU vehicle level network simulation system can realize the train operation control command transmission, the real-time monitoring of the equipment status, the command transmission of the vehicle test and the collection of the results, simulating the CRH2 EMU vehicle level network. Fault tracking data collection and transmission, equipment synchronization and other functions, achieve the functional requirements of the design. At the same time, through the analysis of the network performance of the EMU vehicle level network simulation system, it can provide some reference for the study of the network control system of the actual EMU based on Ethernet technology.
【學(xué)位授予單位】：西南交通大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2013
【分類號(hào)】：TP393.11;U266.2;U284

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