论文部分内容阅读
一款优秀的仿真平台是网络控制系统(NCS)的研究过程中十分重要的部分。现有的网络控制系统仿真平台已经难以满足需求。为了克服已有仿真平台的不足,提出了基于Simulink和OPNET的NCS联合仿真平台。利用了MATLAB引擎技术和命令行仿真技术,设计了联合仿真同步机制将Simulink和网络仿真软件OPNET有机结合,并详细阐述了该平台开发的关键技术。该联合仿真平台利用Simulink产生控制系统模型,利用OPNET模拟网络环境,增强了NCS仿真的灵活性和有效性,实现了对网络控制系统的实时仿真。最后,通过在无线网络环境下的仿真分析了信道中信噪比对系统稳定性的影响,从而验证了该联合仿真平台的有效性。
A good simulation platform is a very important part of the research of NCS. Existing network control system simulation platform has been difficult to meet the demand. In order to overcome the deficiency of the existing simulation platform, a NCS co-simulation platform based on Simulink and OPNET is proposed. Using MATLAB engine technology and command line simulation technology, a joint simulation synchronization mechanism was designed to combine Simulink and network simulation software OPNET. The key technologies of the platform development were elaborated. The simulation platform uses Simulink to generate the control system model and uses OPNET to simulate the network environment, which enhances the flexibility and effectiveness of NCS simulation and realizes the real-time simulation of the network control system. Finally, the effect of signal-to-noise ratio in the channel on the stability of the system is analyzed by simulations in a wireless network environment, thus verifying the effectiveness of the co-simulation platform.