In order to realize the high speed data acquisition and fast Fourier analysis, the paper put forward a kind of high speed data acquisition and analysis system based on FPGA, the system uses Cyclone series FPGA with hi...In order to realize the high speed data acquisition and fast Fourier analysis, the paper put forward a kind of high speed data acquisition and analysis system based on FPGA, the system uses Cyclone series FPGA with high-speed A/D converter, and use the fast Fourier custom analysis nucleation of Altera company, using the standard TCP/IP protocol communication with PC, match up the master machine based on Matlab GUI analysis software. We experiment high speed data acquisition and fast Fourier analysis for a plurality of groups of high frequency analog signals, at the same time the results display on the computer. The experimental results validate the fast Fourier analysis theory, and has realized the low cost, high performance data acquisition and analysis of the complete system design.展开更多
在行波故障测距中,传统的数据采集系统无法满足采集高速变化的暂态电压、电流行波的要求,难以实现故障的精确定位。笔者研制了一种基于PCI总线的高速数据采集系统,介绍了系统原理和硬件电路。以现场可编程门阵列(Field Programmable Gat...在行波故障测距中,传统的数据采集系统无法满足采集高速变化的暂态电压、电流行波的要求,难以实现故障的精确定位。笔者研制了一种基于PCI总线的高速数据采集系统,介绍了系统原理和硬件电路。以现场可编程门阵列(Field Programmable Gate Array,FPGA)作为中央处理器,通过高速A／D转换、同步动态随机存储器(Synchronous Dynamic Random Access Memory,SDRAM)和先进先出(First In First Out,FIFO)高速缓冲存储及PCI总线传输实现高速数据采集。该系统可实现高达100MHz的采样频率,能有效解决输电线路暂态行波的采集问题,在故障定位及微机保护中均能得到广泛应用。展开更多
文摘In order to realize the high speed data acquisition and fast Fourier analysis, the paper put forward a kind of high speed data acquisition and analysis system based on FPGA, the system uses Cyclone series FPGA with high-speed A/D converter, and use the fast Fourier custom analysis nucleation of Altera company, using the standard TCP/IP protocol communication with PC, match up the master machine based on Matlab GUI analysis software. We experiment high speed data acquisition and fast Fourier analysis for a plurality of groups of high frequency analog signals, at the same time the results display on the computer. The experimental results validate the fast Fourier analysis theory, and has realized the low cost, high performance data acquisition and analysis of the complete system design.
文摘在行波故障测距中,传统的数据采集系统无法满足采集高速变化的暂态电压、电流行波的要求,难以实现故障的精确定位。笔者研制了一种基于PCI总线的高速数据采集系统,介绍了系统原理和硬件电路。以现场可编程门阵列(Field Programmable Gate Array,FPGA)作为中央处理器,通过高速A／D转换、同步动态随机存储器(Synchronous Dynamic Random Access Memory,SDRAM)和先进先出(First In First Out,FIFO)高速缓冲存储及PCI总线传输实现高速数据采集。该系统可实现高达100MHz的采样频率,能有效解决输电线路暂态行波的采集问题,在故障定位及微机保护中均能得到广泛应用。
