本文關(guān)鍵詞：基于ARM的AIS數(shù)據(jù)加密傳輸系統(tǒng)設(shè)計與實現(xiàn)　出處：《大連海事大學(xué)》2016年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 船舶自動識別系統(tǒng) 高級加密標準 ARM Android 多線程技術(shù) 套接字通信 串口通信

【摘要】：隨著海上交通運輸業(yè)的發(fā)展,船舶自動識別系統(tǒng)(Automatic Identification System,AIS)在海上交通安全方面起到重要作用。但由于AIS系統(tǒng)是開放式廣播系統(tǒng),只要在其信號覆蓋范圍內(nèi)的船舶配備了 AIS接收機就能接收到它播發(fā)的AIS信息,因此如何保證AIS信息的安全傳輸已經(jīng)成為亟待研究的重要課題之一。目前高級加密標準(Advance Encryption Standard,AES)憑借其安全性高、效率高、易實現(xiàn)等優(yōu)點成為新一代分組密碼算法標準。本文采用基于AES算法的加密方法對AIS數(shù)據(jù)進行加密,設(shè)計并實現(xiàn)了基于WiFi和基于電臺的AIS數(shù)據(jù)加密傳輸系統(tǒng),可以保證船內(nèi)和船舶間用戶之間AIS數(shù)據(jù)的安全傳輸。論文首先綜述了船舶自動識別系統(tǒng)、ARM嵌入式微處理器以及Android系統(tǒng)的研究現(xiàn)狀及發(fā)展趨勢,隨后給出了系統(tǒng)的總體結(jié)構(gòu),闡述了系統(tǒng)軟硬件開發(fā)平臺的搭建,在此基礎(chǔ)上詳細闡述了基于ARM的AIS數(shù)據(jù)加密傳輸系統(tǒng)的具體實現(xiàn):(1)將Android系統(tǒng)移植到ARM11開發(fā)板,搭建穩(wěn)定的嵌入式平臺,并將其應(yīng)用到AIS數(shù)據(jù)加密傳輸系統(tǒng)中。(2)研究Android下的串口通信、JNI機制,實現(xiàn)了 AIS數(shù)據(jù)的接收,通過分析AIS電文格式,實現(xiàn)了 AIS數(shù)據(jù)的解析和圖形界面顯示。(3)基于Java實現(xiàn)AES算法,完成AIS數(shù)據(jù)的加解密處理。研究了多線程技術(shù)、Handler消息處理機制、Java Socket通信機制,基于嵌入式平臺,在Android系統(tǒng)上開發(fā)WiFi下的AIS數(shù)據(jù)發(fā)射器和接收器以及基于電臺的AIS數(shù)據(jù)發(fā)射器和接收器四種應(yīng)用程序,分別實現(xiàn)了基于WiFi和基于電臺的AIS數(shù)據(jù)發(fā)送和接收功能以及基于電臺的加密短消息收發(fā)功能。(4)對所設(shè)計并實現(xiàn)的AIS加密傳輸系統(tǒng)進行了測試,主要包括WiFi功能測試、無線數(shù)傳模塊功能測試、四種應(yīng)用程序的功能測試,給出了測試結(jié)果。各項測試結(jié)果表明:該系統(tǒng)運行正確,實現(xiàn)了預(yù)期功能。
[Abstract]:With the development of marine transportation, automatic Identification System is used to identify ships. AIS) plays an important role in maritime traffic safety, but the AIS system is an open broadcasting system. As long as the ship within its signal coverage is equipped with a AIS receiver, it can receive the AIS information it broadcasts. Therefore, how to ensure the secure transmission of AIS information has become one of the most important topics to be studied. At present, advanced Encryption Standard is the advanced encryption standard. Because of its high security, high efficiency and easy to implement, AES-based block cipher algorithm has become a new generation of block cipher algorithm standard. This paper uses the encryption method based on AES algorithm to encrypt the AIS data. The AIS data encryption transmission system based on WiFi and radio station is designed and implemented. It can ensure the safe transmission of AIS data between the in-ship and inter-ship users. Firstly, this paper summarizes the ship automatic identification system. The research status and development trend of ARM embedded microprocessor and Android system are introduced. Then the overall structure of the system is given and the software and hardware development platform of the system is set up. On this basis, the implementation of the AIS data encryption transmission system based on ARM is described in detail. (1) transplanting the Android system to the ARM11 development board to build a stable embedded platform. It is applied to AIS data encryption transmission system. (2) the mechanism of serial port communication under Android is studied, and the receiving of AIS data is realized, and the format of AIS message is analyzed. The AES algorithm is implemented based on Java, and the encryption and decryption of AIS data is completed. The multithread technology is studied. Handler message processing mechanism is based on embedded platform. Four kinds of application programs of AIS data transmitter and receiver under WiFi and AIS data transmitter and receiver based on radio are developed on Android system. The functions of sending and receiving AIS data based on WiFi and radio station and sending and receiving encrypted short message based on radio are realized respectively. The AIS encryption transmission system designed and implemented is tested. It mainly includes WiFi function test, wireless data transmission module function test, function test of four kinds of application programs, and gives the test results. The test results show that the system runs correctly and realizes the expected function.
【學(xué)位授予單位】：大連海事大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2016
【分類號】：U675.7

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本文編號：1399304