基于ARM的AFDX通信協(xié)議的模擬器設計
發(fā)布時間：2018-12-21 11:41
【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)變得比以前復雜的多，傳統(tǒng)的系統(tǒng)隨著時代的發(fā)展已經無法滿足現在的應用了，要滿足大量的數據交換為前提下，開發(fā)一種更好的數據傳輸總線AFDX航空總線。針對目前該總線的配套測試環(huán)境和設備還不完善的現狀，提供一種基于Linux改進的以太網做出的模擬AFDX端系統(tǒng)的硬件設備來支持真正的設備模擬。 論文工作主要包括如下內容：首先，本課題從國內外對全雙工交換式以太網的研究出發(fā)，給出了自己在Linux移植平臺上面的應用，深入的說明了現行情況中全雙工交換式以太網的工作原理，以及目前全雙工交換式以太網的優(yōu)點，通過模擬該網絡中的終端設備，為現行實際應用的設備研究出一種可以硬件仿真的設備模擬器，該設備模擬器的性能良好，實時性能較高，可以滿足現在航空電子通信系統(tǒng)中的大部分應用，為應用程序提供用戶程序接口。 為此進行了如下工作：首先分析了目前航空總線的需求；然后進行了AFDX端系統(tǒng)的系統(tǒng)搭建和總體設計；在此基礎上進行了AFDX端系統(tǒng)的關鍵實現和軟件架構設計，重點研究了AFDX端系統(tǒng)的核心實現方法，并且給出了AFDX端系統(tǒng)的軟件設計結構。 本文設計的基于AFDX網絡的設備模擬器，可以根據真實設備發(fā)出的數據進行數據的接收和發(fā)送，，并解析該數據。由于數據發(fā)送是單向的，當數據大量發(fā)送的時候，不會發(fā)生堵塞，所以數據是不會丟失的，這在航空電子系統(tǒng)中是非常重要的一個性能指標。 基于AFDX的交換網絡，經分析和測試，證明此設備應該可以滿足現在真實的設備進行測試，對我國的航空系統(tǒng)的升級和維護都有一定的積極意義，對我們國家的航空飛機通信設計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.
【學位授予單位】：成都理工大學
【學位級別】：碩士
【學位授予年份】：2013
【分類號】：TP336;TP391.9
[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.
【學位授予單位】：成都理工大學
【學位級別】：碩士
【學位授予年份】：2013
【分類號】：TP336;TP391.9
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相關期刊論文 前9條
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3 歐陽t
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