一种新型多路同步数据采集卡的设计与实现  

Design and Application of a New Multiplex Channel Synchronization Data Acquisition Board

作　　者：余丹[1] 王庆[1] 

机构地区：[1]武汉大学电气工程学院,湖北武汉430072

出　　处：《电力科学与工程》2004年第3期47-50,54,共5页Electric Power Science and Engineering

摘　　要：介绍了一种用于故障录波的新型多路同步数据采集卡的原理和软硬件实现方法。该数据采集卡采用接受GPS触发方式,可实现24路信号的同步采样,采样速率为单通道最高为250ksps,采样精度为16位。该装置可以通过基于FPGA的硬件在系统可编程技术根据录波对象的不同而方便地管理采样通道,PCI总线接口保证了其实时性和通用性。This paper presents the principle and the realization method of a new multiplex channel synchronization data acquisition board which is used for fault wave-recording device. This data acquisition board is triggered by GPS, can achieve synchro-sampling of 24 digital input. The rate of sampling can achieve 250ksps per channel, and the precision of sampling is 16 bit. Moreover, this data acquisition board can easily administer the working method of sampling channels in accordance with the difference of wave-recording objects by the hardware ISP(In System Programming)technology of FPGA. The PCI bus ensures its real-time and universal character.

关 键 词：故障录波 PCI总线 FPGA GPS 同步采样 在系统可编程 

分 类 号：TP274.2[自动化与计算机技术—检测技术与自动化装置]