CAJ | 학술논문

利用LabVIEW研究并设计一套数据采集系统,NI采集卡采用一种速率采集时,FIFO函数传递数据,对其进行操作如存储、显示时,不会出现故障。随着要求越来越高,变速采集是当下的流行方式,在正常情况下,低速便可以满足采集要求,但在出现故障或者突发情况下,需要对该状态有所记录,因此需要高速采集。然而NI采集卡在采集的同时不可以变速率,否则程序出现故障甚至数据丢失严重,为解决此问题,采用顺序结构设置变速率。当需要变速时,得到速率变换信号,首先停止采集,变速后再启动采集,并采用局部变量实现了不同速率的传递。实际运行表明,该系统逻辑更严谨,采集过程稳定,防止同时采集同时变速所带来的问题,达到了设计要求。
이용LabVIEW연구병설계일투수거채집계통,NI채집잡채용일충속솔채집시,FIFO함수전체수거,대기진행조작여존저、현시시,불회출현고장。수착요구월래월고,변속채집시당하적류행방식,재정상정황하,저속편가이만족채집요구,단재출현고장혹자돌발정황하,수요대해상태유소기록,인차수요고속채집。연이NI채집잡재채집적동시불가이변속솔,부칙정서출현고장심지수거주실엄중,위해결차문제,채용순서결구설치변속솔。당수요변속시,득도속솔변환신호,수선정지채집,변속후재계동채집,병채용국부변량실현료불동속솔적전체。실제운행표명,해계통라집경엄근,채집과정은정,방지동시채집동시변속소대래적문제,체도료설계요구。
Using LabVIEW to study and design a data acquisition system, NI acquisition card uses one rate when collecting, FIFO function to transfer data, manipulate it, such as storage, display, not failure. With the increasingly high demand, shifting the current collection is a popular way, under nor-mal circumstances, low acquisition will meet the requirements, but in the case of failure or sudden need to have records of the state, requiring high-speed acquisition . However, NI acquisition card can not be collected at the same time, variable rate, otherwise the program fails even serious data loss, to solve this problem, set the variable speed sequential structure. When you need speed, get rate conversion signal, first stop the acquisition, transmission and then start the collection and use local variables to achieve a passing different rates. The actual running surface, the logic of the system is more rigorous acquisition process stability and to prevent simultaneous acquisition while shifting the problems arising, meet the de-sign requirements.