基于LXI总线的数据采集系统数据同步方法研究

Research on Data Synchronization Method of LXI-Based Data Acquisition System

对于大型的航空发动机数据采集系统而言,需要采集的信号众多。其不仅仅是不同设备信号的简单叠加,还要求不同设备信号间具有更高精度数据同步能力。LXI总线是新一代的仪器总线,其基于开放的工业网络标准,具有分布式的架构、高速的数据传输、高精度的系统同步等优势。某型航空发动机数据采集系统基于LXI总线设备进行设计和组建,充分利用了LXI总线的优点,有效解决了大型数据采集系统数据同步的问题,提高了系统的精度和测试效率。

For large aircraft engine data acquisition system, a large number of signals should be collected. It is not just a simple superposition of different device signals, but also requires that the different devices signal must be kept higher precision data synchronization. LXI bus is a new generation instrument bus, which is based on the open industrial network standards, with a distributed architecture, high-speed data transmission, high-precision system synchronization and other advantages. One data acquisition system of aero-engine is designed and built based on LXI bus equipment, making full use of the advantages of LXI bus, effectively solving the problem of data synchronization of large data acquisition system, and improving the accuracy and test efficiency of the system.