| 继电保护测试仪数据采集系统中的USB通信设计 |
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| 引用本文： | 邱小红,权先璋,林寿英,夏胜芬,程前臣,邓继万. 继电保护测试仪数据采集系统中的USB通信设计[J]. 电网技术, 2004, 28(12): 53-56 |
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| 作者姓名： | 邱小红 权先璋 林寿英 夏胜芬 程前臣 邓继万 |
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| 作者单位： | 华中科技大学水电及数字化工程学院,湖北省,武汉市,430074;福建农林大学机电学院,福建省,福州市,350002;武汉豪迈电气自动化技术有限公司,湖北省,武汉市,430074 |
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| 摘 要： | 介绍了通用串行总线(USB)的通信原理以及USB设备的开发方法,包括硬件、软件、firmware(固件)、驱动程序和应用程序的设计,并将其用于继电保护测试仪的数据采集系统中.在系统要求的数据传输速率下,分析了使用USB进行通信的必要性及其可行性,并对驱动程序和固件(下位机程序)进行逐次优化,使数据传输效率达到最优.实践证明,在继电保护测试仪的数据采集系统中用USB传输取代串口传输是势在必行的.
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| 关 键 词： | 继电保护测试仪 通用串行总线 固件 驱动程序 数据采集 |
| 文章编号： | 1000-3673(2004)12-0053-04 |
| 修稿时间： | 2003-09-09 |
DESIGN OF USB COMMUNICATION IN DATA ACQUISITION SYSTEM OF PROTECTIVE RELAYING TESTING INSTRUMENT |
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| QIU Xiao-hong,QUAN Xian-zhang,LIN Shou-ying,XIA Sheng-fen,CHENG Qian-chen,DENG Ji-wan. DESIGN OF USB COMMUNICATION IN DATA ACQUISITION SYSTEM OF PROTECTIVE RELAYING TESTING INSTRUMENT[J]. Power System Technology, 2004, 28(12): 53-56 |
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| Authors: | QIU Xiao-hong QUAN Xian-zhang LIN Shou-ying XIA Sheng-fen CHENG Qian-chen DENG Ji-wan |
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| Abstract: | The communicating principle of Universal Serial Bus (USB) and the development ways of USB devices, including the design of hardware, software, firmware, device drivers and client program, are presented, and these are applied to data acquisition system of protective relaying testing instrument. The necessity and feasibility of transmitting data by USB communication under the specified data transmission speed are analyzed, and the device drivers and firmware (the program of lower computer) are successively optimized to make the transmission efficiency optimal. It is proved in practice that for the data acquisition system of protective relaying testing instrument replacing the serial transmission by USB communication is imperative. |
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| Keywords: | Protective relaying testing instrument USB (Universal Serial Bus) Firmware Device driver Data acquisition |
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