【摘要】 网络控制系统通过通信网络连接传感器、控制器和执行器，实现远程监控和智能控制，具有突破地域限制的优势，但其开放性和网络依赖性也引入了诸多问题。首先，系统分析了网络控制系统中存在的信号量化误差、数据包丢失、网络时延、带宽占用和网络安全威胁等问题；其次，在回顾网络控制系统研究成果的基础上，提出了新的控制策略，包括新型量化控制、随机丢包控制、时变时延的自触发控制、变采样周期智能调度控制、动态事件触发控制、DoS(denial of service)攻击的网络控制等；再次，归纳了相关的控制理论方法，包括随机系统法、预测控制法、时延估算与补偿、模糊反馈法、神经网络预测法；最后，提出了网络控制系统研究在未来面临的挑战。更多还原

【Abstract】 Sensors, controllers, and actuators are connected by network control systems(NCSs)through communication networks, which is facilitating remote monitoring and intelligent control and offering the advantage of transcending geographical constraints. However, a multitude of problems arise from its open nature and network dependency. Firstly, the problems existing in networked control systems, such as signal quantization errors, packet loss, network-induced delays, bandwidth occupation, and network security threats are systematically analyzed in this paper. Subsequently, based on a review of research achievements in networked control systems, the new control strategies including novel quantization control, stochastic packet-loss control, self-triggered control for time-varying delays, variable sampling period intelligent scheduling control, dynamic event-triggered control, and networked control under DoS(denial of service)attacks are proposed. Then, relevant control theoretical methods such as stochastic system methods, predictive control methods, delay estimation and compensation, fuzzy feedback methods, and neural network predictive methods are summarized. Finally, the challenges faced by networked control system research in the future are presented.更多还原