中断技术在输电线路行波故障定位数据采集系统中的应用

数据采集在行波故障定位中起着重要的作用。通过专家系统对采集数据进行分析寻找出故障奇异点 ,并借助GPS绝对时标推算出故障的准确地点。为了保证数据采集卡与PC机之间数据传输的实时性和准确性 ,采用了中断方式进行了传输数据。

Application of Interrupt Technique in Data Acquisition System for Traveling Wave Fault Location of Transmission Lines

The data acquisition is very important in fault location with traveling wave. The fault singular point should be found by analyzing the data by means of the expert system and consequently the accurate location of the fault should be calculated through the exact absolute clock of GPS. In order to ensure the real-time and accuracy of the data transmission between the boards of data acquisition and personal computer, the interrupt mode is applied for data transfer.