【摘要】 为了准确的分析地下石油的储量和位置,需要在施工测线上大量的物理点同时观测地震波并对其进行分析,文章中设计了一款石油勘探多通道数据采集系统;FPGA是系统的主控制模块,其硬件资源按功能可划分为A/D、D/A逻辑控制,时钟分频,数据缓冲区控制,电源监控,双端口逻辑控制,PCI9054控制等功能;FPGA通过PC104+总线与上位机进行数据传输;该系统经过时序仿真及硬件调试,已经达到了多通道数据采集的各项指标,验证了最初设计思想的正确性。更多还原

【Abstract】 Aimed at determing the reserves and location of petroleum,a system applied to collecting multichannel data for petroleum based on FPGA(Field Programmable Gate Array) has been designed.As the logic control center,the hardware resources of FPGA have been partitioned into several function modules,which will implement the A/D convertion、D/A convertion,frequency splitting,data buffer control,power-supply voltage monitor,dual-port logic control and PCI9054 control in the mutichannel data acquisition system.Then the data will be transferred to computer through a PC104plus bus.The system could also be applied in multi-analog signals test and hardware debugging.更多还原