USB接口技术在水下流浪潮综合测量技术中的应用-河北科技大学学报.PDFVIP

26 1 Vol. 26, No . 1 2005 3 Journal of Hebei University of Science and T ec nology Mar . 2005 : 1008-1542( 2005) 01-0067- 03 U SB 周长杰, 李国刚, 仇计清, 苏连青, 郭少聪, 李 艳, 李志勇 ( 河北科技大学理学院, 河北石家庄 050018) : 简述了采用U SB 传输的数据采集设备的系统构成, 重点说 在国家/ 八六三0 项目/ 水下流 浪潮综合测量技术0 中用U SB 技术解决了采用 A/ D 卡以及422, 485 等总线板卡的安装麻烦, 受机 箱内环境干扰, 受主板插槽数量和地址中断资源限制的问题, 从而实现了低成本高可靠性多点 海洋要素数据的采集通讯在采集现场, 将传感器采集到的模拟量数字化以后, 利用RS-485 协议 将数据上传到数据采集处理器, 采集处理器接收485 的数据并通过AT98C51 单片机处理, 再通过 USB 接口传输至PC 机进行分析处理及表征; 而主机向设备发送数据的过程正好机反: 主机向 USB 口发送数据, 数据采集处理器转换为485 协议向远端输送, 从而完成了通过水下海洋要素对 海洋流浪潮的综合测量 : U SB; RS485; 数据采集; 水下流浪潮 : T P311 : A Application of USB joint tec nique in t e compre ensive measure tec nology about t e tidal w ave under w ater ZHOU C ang-jie, LI Guo- gang, QIU J-i qing, SU Lian-qing, GU O S ao-cong, LI Yan, LI Z -i yong ( College of Sciences, H ebei University of Science and Tec nology , S ijiaz uang H ebei 050018, C ina) Abstract: T is article discusses t e structure of data-adopt ion system by means of USB. T e emp asis is put on t e National 863 Item T e Synt esis Measure Tec nique about t e Tidal Wave Under Water by using USB joint tec nique to solve t e problems caused by board cards A/ D, 422, 485, etc, suc as installation trouble, disturbances from mac ine cases, limit ed mem- bers of main board slots, addresses and resource. T erefore t e data collection of marine elements is fulfilled on t e basis of a low cost, more reliability and multiple points. During t e data collection, t e stimulated values from t e sensors are digitalized, and t en sent t o data processors t roug RS-485 protocol. T e processors receive data from 485 and by AT98C51 single-proces- sor and USB joints translate t em t o PC for ana