LXI仪器嵌入式通信模块技术的研究与实现

发布时间：2018-07-31 09:34

【摘要】：随着社会的不断进步和发展，，计算机技术不断的更新，被测环境复杂性的不断提高，用户对测量仪器的技术要求也在不断的提高，这就使得测量仪器必须要减小对环境的依赖，增强对恶劣环境的适应能力，传输数据时实现高性能和高吞吐能力。所以，在测量仪器领域，将以太网作为仪器总线进行数据传输的LXI仪器成为新的研究和发展的方向。通过分析LXI仪器的标准，设计了可以实现功能指标要求的基本LXI仪器的架构，包括硬件的架构，软件的架构，LXI仪器实现人机交互的形式，以及在操作系统的基础上搭建可以实现特定功能的应用层协议。设计好LXI仪器的架构后，通过在硬件平台上建立引导程序，linux内核，根文件系统来搭建一个操作系统环境。在linux操作系统的基础上，通过建立TCP/IP协议栈，BOA服务器，HTTP协议等建立一个LXI仪器的服务器环境。建立完基本的LXI仪器的服务器环境后，需要建立一个人机交互的通信方式。即建立B/S结构的LXI仪器，通过设计网页，通过CGI技术实现浏览器与服务器的交互过程。通过设计一个cookie来保存历史信息，通过在TCP/IP协议的基础上建立实现手动设置IP的功能。通过建立模拟服务器的形式来实现对LED灯的相关功能的控制。在linux下，通过控制文件的方式，实现对AD的控制。如果采用B/S结构实现人机交互，则无法解决数据的实时显示。所以，在采用B/S结构实现基本人机交互功能的基础上，采用JavaApplet技术使B/S，C/S结构相互弥补的方式来实现。最后，本文对该LXI仪器进行了TCP通信测试，人机交互测试，控制功能测试，并且对实际测试结果进行了分析。通过测试结果可知，已实现LXI仪器的基本功能。
[Abstract]:With the continuous progress and development of the society, the computer technology is constantly updated, the complexity of the environment under test is increasing, and the technical requirements of the users for the measuring instruments are also increasing, which makes the measuring instruments have to reduce their dependence on the environment. Enhance adaptability to harsh environments and achieve high performance and throughput when transmitting data. Therefore, in the field of measurement instruments, the LXI instrument which uses Ethernet as the instrument bus for data transmission has become a new research and development direction. By analyzing the standard of LXI instrument, the structure of basic LXI instrument, which can meet the requirement of function index, is designed, including the structure of hardware, the structure of software and the form of man-machine interaction of LXI instrument. And on the basis of the operating system to build a specific function of the application layer protocol. After designing the architecture of LXI instrument, the kernel of Linux and the root file system are set up on the hardware platform to build an operating system environment. On the basis of linux operating system, a server environment of LXI instrument is established by establishing TCP/IP protocol stack. After establishing the server environment of the basic LXI instrument, it is necessary to establish a man-machine interactive communication mode. The LXI instrument with B / S structure is built, and the interaction process between browser and server is realized by designing web page and CGI technology. A cookie is designed to save history information, and the function of manually setting IP is established on the basis of TCP/IP protocol. The function of LED lamp can be controlled by setting up an analog server. In linux, the control of AD is realized by the way of controlling files. If the B / S structure is used to realize man-machine interaction, the real time display of data can not be solved. Therefore, on the basis of the basic man-machine interaction function realized by using the B / S structure, the method of making the B / S / C / S structure make up for each other by JavaApplet technology is adopted. Finally, TCP communication test, man-machine interaction test and control function test are carried out for the LXI instrument, and the actual test results are analyzed. The test results show that the basic function of LXI instrument has been realized.
【学位授予单位】：哈尔滨工程大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TP216;TP368.1

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