基于ARM处理器的嵌入式风电场监测系统研究与设计

发布时间：2018-10-21 20:18

【摘要】：风能为一种清洁可再生能源,近些年在世界范围内取得了飞速的发展。但风力发电机一般工作于恶劣的环境下,在无人值守的情况下长年运行,须保证对其进行实时、可靠的控制,所以,对风电机组的运行进行监测是很有必要的,通过实时音视频监测系统,管理者可以及时直观的了解现场情况,从而做出合理正确的判断,并且在设备维护检修过程中提供远程协助。论文介绍了本课题的研究背景及意义,在此基础上研究设计了以S3C2440A微处理器为核心的ARM嵌入式监测系统,实现风电场音视频信号的采集,压缩编码,并进行图像处理如移动侦测等,通过SPI接口与DSP平台之间传输温度、振动信号,最后通过网络传输给上位机。系统软件设计采用嵌入式Linux操作系统,在Linux系统下移植了T264编码库和OpenCV库进行视频编码和图像处理,并在2.6.32内核基础上修改SPI驱动,为数据传输提供接口函数,并通过网络编程实现数据的远程传输,将现场数据供上位机显示并进一步分析。通过实验证明该系统可以有效的进行视频信号的采集和压缩传输,并进行移动侦测等视频处理,现场数据可以正确及时的传输给上位机显示,基本达到了预定研究设计要求。
[Abstract]:Wind energy is a kind of clean and renewable energy. In recent years, it has made rapid development in the world. But the wind turbine generally works in the bad environment, under the condition of unattended for many years, must guarantee to carry on the real-time, the reliable control to it, therefore, it is very necessary to carry on the monitoring to the wind turbine operation, Through the real-time audio and video monitoring system, the manager can understand the situation in time and intuitively, and make a reasonable and correct judgment, and provide remote assistance in the process of maintenance and repair of equipment. This paper introduces the research background and significance of this subject, and then designs a ARM embedded monitoring system based on S3C2440A microprocessor, which can collect and compress the audio and video signals of wind farm. Image processing, such as motion detection, is used to transmit temperature and vibration signal between SPI interface and DSP platform. Finally, it is transmitted to the host computer through the network. The system software is designed using embedded Linux operating system. T264 coding library and OpenCV library are transplanted into the Linux system for video coding and image processing, and the SPI driver is modified on the basis of 2.6.32 kernel to provide interface function for data transmission. The remote data transmission is realized by network programming, and the field data is displayed by the host computer and analyzed further. It is proved by experiments that the system can collect and compress the video signal effectively and process the video signal such as mobile detection. The field data can be transmitted to the host computer correctly and timely, which basically meets the requirements of the research and design.
【学位授予单位】：华北电力大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TP368.1;TM614

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