Abstract
Most control strategies for networked control systems (NCS) assume that system model is known "a priori" which is, however, impractical in many industrial applications. To obtain the model of First Order Plus Dead Time type plant for networked control, this paper concentrates on model identification under the networked control environment. Ideal-relay feedback-based networked identification scheme is proposed here along with the new packet-based real-time queuing protocol to identify the plant's critical parameters, which takes into account the effect of nondeterministic factors such as network-induced delay, data packet disordering, and limited data packet loss between the sensor and controller as well as the controller and the actuator. Experimental results show that the proposed networked identification scheme can effectively overcome the impact of various network-induced nondeterministic factors for ideal-relay-based model identification in NCS.
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