基于实测信号回放的半实物仿真系统设计

Design of Hardware-in-the-Loop Simulation System based on the Playback of the Measured Signal

实测信号的获取对控制系统的研究起着非常重要的作用。受环境因素等多方面因素的制约,实测信号往往很难获取,只能得到有限数字信号样本,试验中很难利用。本文设计了一套基于STC89C52单片机和DAC0832的半实物仿真系统,将存储的数字信号样本回放成原始的实测信号,节省了大量的场外时间和试验成本,为进一步的研究打下了基础。

To obtain real measured signal plays a very important role in the study of control sys- tem. As restricted by various factors such as environmental factors, the measured signal is often difficult to obtain. Only limited samples of a digital signal can be gotten, and it is difficult to use in experiments. A kind of hardware-in-the-loop simulation system based on STC89C52 MCU and DAC0832 is designed in this paper, and the digital signals in store will be playback into the original real measured signals, which can save a lot of outside time and experimental cost, and lay the foundation for further study.