基于因特网的共享控制系统接入设备的在线辨识

Online Identification of Shared Plants Under Internet Based Shared Control System

研究在基于因特网的共享控制系统中,服务器节点在时变时延的网络环境下对接入设备对象的在线辨识.分析网络环境下被控设备对象在线辨识的方法与理论难点,融合控制技术及网络通信技术设计网络环境下共享控制系统接入设备在线辨识的模型结构.实现了服务器节点在网络环境下对电液位置伺服控制设备的模型参数辨识.以无网络环境下对该设备的辨识结果为基准,二者辨识结果基本一致.结果表明,该方案实现了被辨识的设备对象与辨识的服务器在空间位置上的分离,扩展了系统辨识的应用范围.

Investigats the parameter estimation of shared plants by the server under Internet based shared control system, which is a time-varying and time-delay system. System online identification conditions and difficulties were analyzed. Control technology, network communication technology and system online identification technology are introduced. It shows that the server can identify the model parameters of the shared plants in the Internet based shared control system. To use the identification result without influence of network factor as the reference, it is basically matched that the two identifications result. The proposed online identification method is proved feasible. It can identify the shared plants as separated from the server spatially. Simultaneously the areas of application of the system online identification are seen to be expanded.