【摘要】：隨著飛行的發(fā)展和需要，人們的需求日益增加，使得航空電子系統(tǒng)變得比以前復(fù)雜的多，傳統(tǒng)的系統(tǒng)隨著時(shí)代的發(fā)展已經(jīng)無(wú)法滿足現(xiàn)在的應(yīng)用了，要滿足大量的數(shù)據(jù)交換為前提下，開發(fā)一種更好的數(shù)據(jù)傳輸總線AFDX航空總線。針對(duì)目前該總線的配套測(cè)試環(huán)境和設(shè)備還不完善的現(xiàn)狀，提供一種基于Linux改進(jìn)的以太網(wǎng)做出的模擬AFDX端系統(tǒng)的硬件設(shè)備來(lái)支持真正的設(shè)備模擬。 論文工作主要包括如下內(nèi)容：首先，本課題從國(guó)內(nèi)外對(duì)全雙工交換式以太網(wǎng)的研究出發(fā)，給出了自己在Linux移植平臺(tái)上面的應(yīng)用，深入的說(shuō)明了現(xiàn)行情況中全雙工交換式以太網(wǎng)的工作原理，以及目前全雙工交換式以太網(wǎng)的優(yōu)點(diǎn)，通過(guò)模擬該網(wǎng)絡(luò)中的終端設(shè)備，為現(xiàn)行實(shí)際應(yīng)用的設(shè)備研究出一種可以硬件仿真的設(shè)備模擬器，該設(shè)備模擬器的性能良好，實(shí)時(shí)性能較高，可以滿足現(xiàn)在航空電子通信系統(tǒng)中的大部分應(yīng)用，為應(yīng)用程序提供用戶程序接口。 為此進(jìn)行了如下工作：首先分析了目前航空總線的需求；然后進(jìn)行了AFDX端系統(tǒng)的系統(tǒng)搭建和總體設(shè)計(jì)；在此基礎(chǔ)上進(jìn)行了AFDX端系統(tǒng)的關(guān)鍵實(shí)現(xiàn)和軟件架構(gòu)設(shè)計(jì)，重點(diǎn)研究了AFDX端系統(tǒng)的核心實(shí)現(xiàn)方法，并且給出了AFDX端系統(tǒng)的軟件設(shè)計(jì)結(jié)構(gòu)。 本文設(shè)計(jì)的基于AFDX網(wǎng)絡(luò)的設(shè)備模擬器，可以根據(jù)真實(shí)設(shè)備發(fā)出的數(shù)據(jù)進(jìn)行數(shù)據(jù)的接收和發(fā)送，，并解析該數(shù)據(jù)。由于數(shù)據(jù)發(fā)送是單向的，當(dāng)數(shù)據(jù)大量發(fā)送的時(shí)候，不會(huì)發(fā)生堵塞，所以數(shù)據(jù)是不會(huì)丟失的，這在航空電子系統(tǒng)中是非常重要的一個(gè)性能指標(biāo)。 基于AFDX的交換網(wǎng)絡(luò)，經(jīng)分析和測(cè)試，證明此設(shè)備應(yīng)該可以滿足現(xiàn)在真實(shí)的設(shè)備進(jìn)行測(cè)試，對(duì)我國(guó)的航空系統(tǒng)的升級(jí)和維護(hù)都有一定的積極意義，對(duì)我們國(guó)家的航空飛機(jī)通信設(shè)計(jì)也有一定的參考意義。
[Abstract]:With the development and need of flight, the demand of people is increasing day by day, which makes avionics system more complex than before. With the development of the times, the traditional system has been unable to meet the current application. A better data transmission bus AFDX aeronautical bus is developed under the premise of meeting a large amount of data exchange. In view of the imperfect test environment and equipment of the bus, a hardware device based on Linux improved Ethernet to simulate the AFDX system is provided to support the real device simulation. The main contents of the thesis are as follows: firstly, this paper presents the application of Linux transplant platform based on the research of full-duplex switched Ethernet at home and abroad. The working principle of full-duplex switched Ethernet in the current situation and the advantages of full-duplex switched Ethernet are explained in detail. By simulating the terminal equipment in the network, A kind of equipment simulator which can be simulated by hardware is developed for the practical application. The simulator has good performance and high real-time performance. It can meet most of the applications in the avionics communication system. Provides user program interfaces for applications. The main work is as follows: firstly, the requirements of the current aeronautical bus are analyzed, and then the system structure and the overall design of the AFDX terminal system are carried out. On this basis, the key implementation and software architecture design of AFDX end system are carried out, the core realization method of AFDX end system is studied emphatically, and the software design structure of AFDX end system is given. The device simulator based on AFDX network designed in this paper can receive and transmit the data according to the data sent out by the real device and parse the data. Because the data transmission is one-way, when the data is sent in a large amount, there will not be clogging, so the data will not be lost, which is a very important performance index in avionics system. The switching network based on AFDX, through analysis and test, proves that this equipment should be able to meet the actual equipment testing, which has certain positive significance to upgrade and maintain the aviation system of our country. For our country's aviation aircraft communication design also has certain reference significance.
【學(xué)位授予單位】：成都理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2013
【分類號(hào)】：TP336;TP391.9

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本文編號(hào)：2388865