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为缓解微机测控系统主机处理能力的瓶颈现象，往往要求系统能定时以指令级速度采集外界数据。本文讨论基于PC总线能并行工作的智能数据采集子系统的具体实现技术。
To alleviate the host computer processing system bottleneck phenomenon, often require the system to regularly collect data at the instruction level speed. This article discusses the implementation of intelligent data acquisition subsystem based on PC bus can work in parallel.