【作者】 陈龙；

【导师】 陈伟；

【作者基本信息】 厦门大学 ， 检测技术与自动化装置， 2014， 硕士

【摘要】 随着工业自动化与经济建设的不断发展,电能质量越来越受到人们的关注,各行各业对电能质量的要求也在逐渐增高。因此,为保证电力系统运行的稳定性与安全性,对电能质量指标进行监测与分析有着重要意义。目前,随着嵌入式技术的不断发展,DSP与ARM的性能变得日渐强大,但传统的以DSP与ARM为硬件核心的监测系统,仍存在功能简单、存储容量有限、不易网络化等不足。近年来,Linux操作系统已经成长为一个成熟的嵌入式操作系统,它是一个开源操作系统,可以实现多任务处理,且具有丰富的资源,可以满足各种嵌入式系统的需求；另一方面,虚拟仪器技术是近年来兴起的一项新技术,它具有高度模块化,智能化的特点,被广泛应用于测控系统的开发。为了弥补传统监测系统的不足,本设计在监测设备的ARM模块上移植了μcLinux操作系统,利用其丰富的接口,使用SEGGER公司开发的GUI图形库emWin,以及嵌入式数据库sqlite3,在监测设备上完成了μccLinux用户程序的开发,实现了ARM与PC间的TCP通迅,用户界面设计与数据存储。此外,为了提高对电能质量数据的存储与管理能力,以LabVIEW为软件平台结合Oracle数据库,开发了一套功能全面的电能质量后台监测软件,该软件在PC端为用户提供了接近Windows标准的图形界面,现实了PC与监测设备的网络通信功能,完成了大量电能质量数据的存储与查询。经测试,系统运行稳定,较好地扩展了电能质量监测系统的功能,具有较大的实用意义与较高的市场价值。更多还原

【Abstract】 With the development of the industrial automation and economic construction, people pay more and more attention to the power quality. Meanwhile higher quality power is required by almost all walks of life. Therefore, to keep the electric system running stably and safely, it is of great importance to monitor and analyse the electric power quality.Nowadays, as the embedded technology has became more mature, the performance of DSP and ARM get more powerful. But conditional monitoring devices using DSP and ARM still have some issues, such as defective function, limited storage capacity, difficulty in network and so on. In recent years, Linux has became a fully functional and stable embedded operating system. The open source system with rich resources can realize multi-task and match with various requirements of different embedded system. Moreover, virtual instrument technology is another advanced technology widely applied in developing measure and control systems. This new technology has been proved to be highly modular and intelligentized.To make up the shortages of the conditional devices, in this design,μcLinux operating system was transplanted to the ARM module of the monitoring devices. Using rich interfaces in ucLinux, emWin, a GUI library developed by SEGGER, sqlite3, a widely used embedded database, the user programs were designed to realize the TCP communication between ARM and PC, GUI and the data storage. Besides, to improve the storage capacity and the data management ability for the power quality data, a software based on Lab VIEW and Oracle was designed. It provides a friendly GUI which is match to windows standard. This software also realized the TCP communication, huge data storage and retrieval.Through testing,the whole system runs stably. It enhanced the function of the power quality monitoring devices.The whole system has big value both in the practice and the market.更多还原