基于嵌入式系统的同步数据采集设计及应用

为实现对发电设备电参量的实时测量和监控,介绍了基于AT91RM9200的外部总线接口(EBI)与数据采集芯片MAX1324的高速数据采集方法。设计出了总线接口方法、VxWorks下驱动程序的实现及系统的多任务调度,推导出了计算各电参量的快速算法。从对实验结果的精度及功能分析表明该发电机电参量实时监测装置可以实现对不同频率发电机基本电参量的信息反馈。该方法对嵌入式系统在电气工程领域的应用具有一定的参考价值。

Design and application of synchronous data acquisition based on embedded system

A high speed data acquisition method based on external bus interface(EBI)of AT91RM9200 and data acquisition chip MAX1324 is presented for measuring and monitoring electrical parameters of power-generating equipment.The bus interface,driver and multitasking of VxWorks are designed,and the fast arithmetic of calculating the electrical parameter is deduced.The result shows that the method can improve the measurement accuracy and speed of power-generating equipment.The method has reference value to the application of embedded system in electrical engineering fields.