Microblaze软核在超声测流系统中的应用  

Application of Microblaze Soft Processor Core in Ultrasonic Flow Measurement System

作　　者：朱浩[1] 张大朋[1] 李钦思 

机构地区：[1]南瑞集团公司国网电力科学研究院,江苏南京211000

出　　处：《自动化仪表》2016年第12期58-61,共4页Process Automation Instrumentation

摘　　要：在大流量测量系统中,通常需要由多个不同体系架构的CPU来协同完成测流。针对多CPU系统的复杂性,采用单片高性能FPGA,实现了从超声传播时间测量、信号分析、数据通信到图形展示的所有功能。在FPGA内部,通过例化Micro Blaze软核处理器,减少了对外部器件的依赖,降低了系统开发复杂度,使系统运行更加稳定、可靠。应用结果表明,FPGA不仅可以简化系统、降低成本,其动态可配置特性使产品具有更强的适应能力。In large flow measurement system, usually multiple CPUs with different architectures are required for collaboratively operation. In view of the complexity of multiple CPU system, a single chip high performance FPGA is adopted to realize all the functions including the measurement of ultrasonic transit time, signal analysis, data communication, and graphic display, etc. Inside FPGA, by instantiating MicroBlaze soft processor core, the dependence on external components is decreased, the complexity of system development is reduced, and the system can run more stable and reliable. Application results show that using FPGA not only simplifies the system and reduces the costs; the dynamic configurable properties also enhance the adaptability of system.

关 键 词：超声波 流量计 看门狗 MICROBLAZE FPGA BOOTLOADER 时差法 数据交互 

分 类 号：TH814[机械工程—仪器科学与技术] TP216[机械工程—精密仪器及机械]