基于嵌入式系统USB接口的虚拟示波器的开发与实现  

Development and Implementation of Virtual Oscillograph Based on the USB Interface of Embedded System

作　　者：梁孟芹[1] 陈加林[1] 薛雯[1] 蔡燕[1] 

机构地区：[1]重庆邮电大学网络控制技术与智能仪器仪表教育部重点实验室,重庆400065

出　　处：《重庆工学院学报（自然科学版）》2009年第6期57-60,共4页Journal of Chongqing Institute of Technology

基　　金：国家863高技术研究发展计划资助项目(2004AA412020)

摘　　要：针对传统示波器不便携带,传统虚拟仪器不具有即插即用、热插拔等功能的情况,提出了基于嵌入式系统USB接口的虚拟示波器的设计方案和具体实现方法.以单片机和USB芯片为核心构建虚拟示波器系统体系,应用嵌入式技术把示波器的硬件集成在嵌入式电路板上,将A/D转换、D/A转换,以及数字滤波和逻辑控制处理等外置于上位PC机,通过控制传输和数据报告完成数据通信和监控显示的功能.实验表明,设计的虚拟仪器具有智能化和良好的系统扩展性,是未来虚拟仪器发展的方向.In view of the problem of no portability with traditional traditional oscillograph and the problems of no function of plug and play and hot plug and insertion with traditional virtual instruments, this paper proposes the design plan and the concrete realization method for virtual oscillograph based on embedded system USB. Monolithic integrated circuit and USB chip is taken as core to construct virtual oscillograph system. The embedded technology is used to integrate oscillograph hardware into the embedded circuit wafer, and A/D transformation, D/A transformation as well as the digital filtering and logical control processing substandard are put in superior PC machine, and the data communication and the monitoring demonstration function are realized through the control transmission and the data report. The designed virtual instrument has characteristics of intellectualization and good system extensibility, and is the direction to develop future virtual instrument.

关 键 词：嵌入式系统 USB 虚拟示波器 

分 类 号：TM395.37[电气工程—电机]