基于Linux的移动终端研究

发布时间：2019-02-25 09:29

【摘要】：随着科学技术的迅速发展，，机械设备日益大型化和复杂化，机械设备的智能自动化运行得到社会的广泛关注。能够随时随地的掌握机械设备的现场运行状况，对设备当前的运行状态进行检测和评估，日益成为各行各业关注的焦点。远程监控系统是在传统测控系统的基础上结合当前信息处理技术和无线通信技术而发展起来的，它克服了传统测控系统需要架设有线传输线路，易受复杂地形环境以及恶劣现场工况限制，移动性差等缺点。远程监控系统的移动终端设备采用以嵌入式ARM为核心的Linux操作系统，极大的提高了系统的性能，降低系统的功耗，实现了系统的智能控制。采用无线通信技术传输现场采集的数据，可靠稳定实时的与远程数据中心进行数据交互。本文设计并实现了一种新型的远程监控系统的移动终端设备，移动终端以基于ARM920T内核的S3C2440微处理器和嵌入式Linux操作系统为核心，在此基础上增加了身份识别与无线通信功能。身份识别通过超高频射频识别模块实现，读写器识别电子标签并读写射频信号，完成身份识别工作。无线通信通过WIFI无线网络实现，数据通信过程中WIFI与远程数据中心相连并进行数据交互，完成无线通信工作。本文首先从理论角度研究分析了基于Linux的嵌入式移动终端在远程监控系统应用中的必要性，根据实际需求设计了以射频识别和无线通信为核心的系统总体方案。然后对移动终端系统的硬件部分和软件部分做设计说明。最后搭建移动终端的硬件和软件测试平台，分别对身份识别和无线通信功能模块进行测试，验证设计方案的可行性。
[Abstract]:With the rapid development of science and technology, mechanical equipment is becoming more and more large and complicated. To be able to grasp the field operation status of mechanical equipment at any time, anywhere, and to detect and evaluate the current operating state of the equipment has become the focus of attention of various industries. Based on the traditional measurement and control system, the remote monitoring system is developed by combining the current information processing technology and wireless communication technology. It overcomes the need of the traditional measurement and control system to set up wired transmission lines. It is easy to be restricted by complex terrain and harsh field conditions, and its mobility is poor. The mobile terminal equipment of remote monitoring system adopts Linux operating system with embedded ARM as the core, which greatly improves the performance of the system, reduces the power consumption of the system, and realizes the intelligent control of the system. Wireless communication technology is used to transmit the data collected in the field, and the data can be interacted with the remote data center in real time and reliably. This paper designs and implements a new kind of mobile terminal equipment of remote monitoring system. The mobile terminal is based on S3C2440 microprocessor based on ARM920T kernel and embedded Linux operating system. On this basis, the functions of identity identification and wireless communication are added. Identification is realized by UHF radio frequency identification module. The reader recognizes the electronic tag and reads and writes radio frequency signals to complete the identification work. Wireless communication is realized through WIFI wireless network. In the process of data communication, WIFI is connected to remote data center and data is exchanged. In this paper, the necessity of the application of embedded mobile terminal based on Linux in remote monitoring system is studied and analyzed from the theoretical point of view. According to the actual requirements, the overall system scheme based on radio frequency identification (RFID) and wireless communication is designed. Then the hardware part and the software part of the mobile terminal system are described. Finally, the hardware and software test platform of the mobile terminal is built to test the function modules of identity identification and wireless communication, respectively, to verify the feasibility of the design.
【学位授予单位】：中北大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TN929.53;TP316.81;TP277

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