發(fā)布時(shí)間：2018-08-30 17:36

【摘要】：近年來,我國高速鐵路的發(fā)展取得了舉世矚目的成就,然而我國的高速列車裝備的國產(chǎn)化程度卻有待進(jìn)一步提高。列車控制網(wǎng)絡(luò)作為高速列車的九大關(guān)鍵技術(shù)之一,主要控制在國外大型跨國公司的手里。為了盡快實(shí)現(xiàn)列車控制網(wǎng)絡(luò)國產(chǎn)化,研發(fā)出具有自主知識(shí)產(chǎn)權(quán)的產(chǎn)品,國內(nèi)軌道交通裝備研究機(jī)構(gòu)及廠家都在加大力度進(jìn)行開發(fā)。目前我國對(duì)列車控制網(wǎng)絡(luò)系統(tǒng)的研究還處于初期研發(fā)階段,對(duì)列車網(wǎng)絡(luò)進(jìn)行純軟件和半實(shí)物仿真也是研究的熱點(diǎn)。 本文依托于“十一五”國家科技支撐計(jì)劃子課題“高速列車網(wǎng)絡(luò)控制系統(tǒng)”(項(xiàng)目編號(hào)：2009BAG12A06,2009-2012)網(wǎng)絡(luò)系統(tǒng)半實(shí)物仿真,設(shè)計(jì)并實(shí)現(xiàn)了II型車控制網(wǎng)絡(luò)半實(shí)物仿真平臺(tái)的光電通信接口底層軟件,用以驅(qū)動(dòng)ARCNET網(wǎng)絡(luò)的關(guān)鍵部件類MDM8光電轉(zhuǎn)換卡。同時(shí),根據(jù)ARCNET網(wǎng)絡(luò)特性設(shè)計(jì)了一種保障通信安全的算法。 論文主要工作包括： (1)在II型車網(wǎng)絡(luò)控制系統(tǒng)已有安全策略的基礎(chǔ)上,設(shè)計(jì)并實(shí)現(xiàn)了一種ARCNET網(wǎng)絡(luò)通信安全算法,即在底層軟件中使用DES算法對(duì)通信數(shù)據(jù)進(jìn)行加密處理,提高數(shù)據(jù)的安全性。 (2)針對(duì)類MDM8光電轉(zhuǎn)換卡的硬件環(huán)境和功能需求,為該卡移植了嵌入式操作系統(tǒng)。該操作系統(tǒng)由Linux內(nèi)核,YAFFS根文件系統(tǒng)和U-Boot引導(dǎo)程序組成。 (3)設(shè)計(jì)并實(shí)現(xiàn)了類MDM8光電轉(zhuǎn)換卡上部分外部設(shè)備的驅(qū)動(dòng)程序。為ARCNET網(wǎng)絡(luò)控制器—COM20022芯片開發(fā)驅(qū)動(dòng)程序,以實(shí)現(xiàn)ARCNET的組網(wǎng)和數(shù)據(jù)通信功能。為類MDM8光電轉(zhuǎn)換卡的以太網(wǎng)口—10/100Ethernet MAC接口開發(fā)驅(qū)動(dòng)程序,使該卡與對(duì)應(yīng)的功能仿真站點(diǎn)PC機(jī)能夠正常通信。此外,還對(duì)UART串口驅(qū)動(dòng)進(jìn)行開發(fā),以便跟蹤和調(diào)試程序。 (4)對(duì)設(shè)計(jì)并實(shí)現(xiàn)的各底層軟件模塊進(jìn)行了功能測試,測試結(jié)果表明,該底層軟件滿足仿真平臺(tái)的要求。 本文實(shí)現(xiàn)了II型車列車控制網(wǎng)絡(luò)半實(shí)物仿真系統(tǒng)中光電通信接口的底層軟件,對(duì)于CRH2型車列車控制網(wǎng)絡(luò)系統(tǒng)研發(fā)具有一定的參考意義。
[Abstract]:In recent years, the development of high-speed railway in China has made remarkable achievements, but the degree of localization of high-speed train equipment in China needs to be further improved. As one of the nine key technologies of high-speed trains, train control network is mainly controlled by large multinational corporations abroad. In order to realize the localization of train control network as soon as possible and develop products with independent intellectual property rights, domestic rail transit equipment research institutions and manufacturers are increasing their efforts to develop. At present, the research of train control network system in our country is still in the initial stage of research and development, and the pure software and hardware-in-the-loop simulation of train network is also a hot research topic. This paper relies on the hardware-in-the-loop simulation of high-speed train network control system (project No.: 2009BAG12A062009-2012). The basic software of optoelectronic communication interface of the hardware-in-the-loop simulation platform of II control network is designed and implemented, which is used to drive the key components of ARCNET network, such as MDM8 photoelectric conversion card. At the same time, according to the characteristics of ARCNET network, an algorithm is designed to ensure the security of communication. The main work of this paper is as follows: (1) based on the existing security strategy of II vehicle network control system, a ARCNET network communication security algorithm is designed and implemented. That is to use DES algorithm to encrypt the communication data in the bottom software to improve the security of the data. (2) aiming at the hardware environment and function requirement of the MDM8 photoelectric conversion card, the embedded operating system is transplanted for the card. The operating system is composed of the Linux kernel YAFFS root file system and the U-Boot boot program. (3) the driver of some peripheral devices on the MDM8 photoelectric conversion card is designed and implemented. The driver is developed for ARCNET network controller-COM20022 to realize the networking and data communication function of ARCNET. The driver is developed for the Ethernet port -10 / 100 Ethernet MAC interface of the MDM8 photoelectric conversion card, so that the card can communicate normally with the corresponding functional emulation station PC machine. In addition, the UART serial driver is also developed to track and debug the program. (4) the functional tests of the underlying software modules are carried out. The test results show that the underlying software meets the requirements of the simulation platform. In this paper, the bottom software of optoelectronic communication interface in the hardware-in-the-loop simulation system of II train control network is implemented, which has certain reference significance for the research and development of CRH2 train control network system.
【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】：2014
【分類號(hào)】：U284.48;TN929.1

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