An Algorithm of Determining Data Sampling Times in the Network-Based Real-Time Distributed Control Systems

네트워크를 이용한 실시간 분산제어시스템에서 데이터 샘플링 주기 결정 알고리듬

Processes in the real-time distributed control systems share a network medium to exchange their data. Performance of feedback control loops in the real-time distributed control systems is subject to the network-induced delays from sensor to controller, and from controller to actuator. The network-induced delays are directly dependent upon the data sampling times of control components which share a network medium. In this study, an algorithm of determining data sampling times is developed using the "window concept". where the sampling datafrom the control components dynamically share a limited number of windows. The scheduling algorithm is validated through the aimulation experiments.