Windows环境下高速数据采集系统软件设计

设计了基于工控机和高速模入板卡的数据采集系统，介绍了Windows 多任务多线程环境下，高速同步采集数据、存储与处理数据的软件设计方法。根据系统的特点， 采用半满中断方式实现数据采集传输；多线程技术使数据采集与数据处理相独立，提高了数据吞吐量和计算机的整体处理能力；缓冲队列实现了高速连续存盘而不丢点；动态虚拟技术实现线程高优先级工作 。用这些方法开发出的软件已成功应用于风机的故障检测中，并取得了良好的效果。
关键词： 高速数据采集; 软件设计; 故障检测
Abstract A data acquisition system based on industrial control computer and high-speed
acquisition card is designed. Some software design technique are introduced in the process of
high-speed data acquisition, data storage and data processing in the multitask and multi-thread environment of Windows. According to system's feature, half-interruption method is used to collect and transfer data. Multithread is designed to make data transmission and data processing separate, thus enhance computer's process. Buffer is used to high-speed and continuous data storage. VxD technique is adopted to elevate process priority. The designed software has been used in failure testing, and its performance is very good.
Keywords: High-speed data acquisition ； software design ； failure testing