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传输带宽和抗干扰能力是评价数据采集系统性能的重要指标。文中采用高速 DSP芯片TMS32 0 C4 0和乒乓缓存技术设计的嵌入式高速采集系统 ,实现了数据的高速采集传输存储 ;光纤隔离技术的引入 ,显著提高了系统的抗干扰能力 ;双 CPU结构使系统可选择有效数据进行存储 ,并对部分数据做实时辅助处理 ;模块化设计思想及大规模可编程逻辑器件的采用 ,使系统具备较强的可扩展性。
Transmission bandwidth and anti-interference ability is to evaluate the performance of the data acquisition system an important indicator. In this paper, high-speed DSP chip TMS32 0 C4 0 and ping-pong cache technology designed high-speed embedded acquisition system to achieve high-speed data acquisition and transmission of storage; optical fiber isolation technology introduced significantly improved anti-interference ability of the system; dual CPU architecture allows the system Can choose to store valid data, and do some real-time auxiliary processing of some data; modular design ideas and large-scale programmable logic devices, so that the system has strong scalability.