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The concept of networked decoupling control system (NDCS for short) is proposed and its fundamental issues are investigated, including its configurations, network-induced delays and data packet dropout. With the introduced concepts of node-device connectivity matrix and network transmission matrix, three typical configurations of NDCSs are also presented and the locations of networks in the system...
The concept of networked feedforward-feedback control system is proposed based on practical industrial process control. Its configurations as well as the development of its uniform model are investigated in detail. Feedforward-feedback control system, wherein the control loops are closed via real-time networks, is called networked feedforward-feedback control system(NFCS for short). Three different...
The simulation for a class of networked cascade control systems by PID control is investigated in this paper. Cascade control system, wherein the control loops are closed via real-time networks, is named networked cascade control system(NCCS for short). The configuration for a class of NCCSs is presented and the locations of the networks inserted into the control loops are pointed out. Discrete time...
The issue of PID controllers designing for a typical class of networked cascade control systems with constant network-induced delays is addressed. Cascade control system, wherein the control loops are closed via a real-time network, is called a networked cascade control system(NCCS for short). The system configuration for a typical class of NCCSs is analyzed, and the locations of the network-induced...
Based on practical industrial process control, the concept of networked cascade control system (NCCS for short) is introduced. The simulation of a typical class of NCCS based on TrueTime toolbox by fuzzy PID control method is implemented and investigated. In this kind of NCCS, a real-time network is inserted in the control loops between the primary and secondary controller, as well as between the...
Based on practical industrial process control, a typical configuration for networked cascade control systems (NCCSs) is analyzed. This kind of NCCSs with state feedback controllers, in which the network-induced delay is uncertain and less than a sampling period, is studied. The sufficient condition for the stabilizability of the NCCSs without disturbances is proposed, and the state feedback stabilization...
Current workflow products can support more complex modeling of business processes, workflow engine mechanism is well researched, but the link between organizational elements and process activities is less well understood. In access control, most products can only support fixed role-based task assignment, not enough in considering more complex security policies, such as DSOD, task binding of duties,...
Based on industrial process control practice, the concept of networked cascade control system is put forward. Four configurations of networked cascade control system are explicitly proposed and the advantages and disadvantages of each are presented and compared. Several issues induced by the network intersected in the control loops are analyzed, including the network-induced delay, data packet dropout,...
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