摘要：

传统的多通道信号采集与存储系统面对庞大的数据采集任务,缺乏足够的传输带宽以及实时存储能力。为此,提出一种以光纤通道-小型计算机系统接口(FC-SCSI)为核心的实时采集存储方案。运用链式查找表结构以及动态流控技术,提高FC-SCSI软件协议存储速率, 解决多通道同步采集的大容量流数据实时落盘问题,实现具备大数据量采集、实时可靠存储、便携性能好的综合数据处理存储系统。实验结果表明,在2.125 Gb光纤通道条件下,该系统可靠稳定存储速率为186.6 MB/s,达到2.125 Gb光纤通道理论速率的94.7%,与传统FC-SCSI 存储方案的167.1 MB/s速率相比提升了11.7%。

关键词: 光纤通道, 现场可编程门阵列, 多通道信号采集, 高速信号, 实时存储, 动态流控

Abstract:

Traditional multi-channel signal acquisition and storage system is facing a huge task of data collection,the lack of adequate transmission bandwidth and storage capacity in real-time.This paper proposes a Fibre Channel-small Computer System Interface(FC-SCSI) as the core of the real-time acquisition and storage solutions.It uses chain lookup table structure and dynamic flow control technology to improve the FC-SCSI software protocol storage efficiency,focusing on solving a large-capacity multi-channel synchronous stream data off the disk in real-time acquisition problems,and it realizes a large amount of data acquisition,real-time and reliable storage,portability and good performance integrated data processing storage systems.Experimental results show that under 2.125 Gb Fibre Channel(FC),reliable and stable storage speed is 186.6 MB/s,which is 94.7% of 2.125 Gb theoretical rate of FC,and the speed is enhanced by 11.7% compared with 167.1 MB/s of traditional FC-SCSI storage solutions.

Key words: Fibre Channel(FC), Field Programmable Gate Array(FPGA), multi-channel signal acquisitionhigh-speed signal;real-time storage;dynamic flow control

中图分类号: 

• TP391