Control Performance Analysis of a CAN – Based Networked Control System: Active Suspension Study Case

2009 ◽  
Vol 2 (1) ◽  
pp. 10-17
Author(s):  
R. A. Ramírez–Mendoza ◽  
R. Morales–Menéndez ◽  
J. Táger ◽  
R. Vargas ◽  
A. Aguilar
Keyword(s):  
Control System ◽  
Performance Analysis ◽  
Active Suspension ◽  
Networked Control System ◽  
Networked Control ◽  
Control Performance ◽  
Study Case

Deadband feedback-based scheduling approach for networked control system with variable sampling period

2021 ◽  
pp. 014233122098142
Author(s):  
Zhongda Tian
Keyword(s):  
Control System ◽  
Sampling Period ◽  
Networked Control System ◽  
Networked Control ◽  
Control Performance ◽  
Control Loops ◽  
Network Bandwidth ◽  
Network Utilization ◽  
Variable Sampling ◽  
Overall Performance

Reasonable information scheduling strategies in the networked control system (NCS) can improve the quality of service of the network, reduce the conflict of information transmission in the network, and improve the overall performance of the NCS. In order to improve the performance of the NCS, a deadband feedback-based scheduling approach for the NCS with a variable sampling period is proposed. For the NCS with multi control loops, considering the limitation of network bandwidth resources, the dynamic real-time adjustment of a multi-loop sampling period is achieved through network utilization prediction, network bandwidth configuration and sampling period calculation. Furthermore, deadband feedback scheduling is combined with a variable sampling period algorithm. Deadband is set in the sensor and controller nodes to effectively adjust the information flow of the forward channel and the feedback channel. The proposed scheduling approach can reduce the impact of network conflict and network delay on system stability, make the network resources allocated reasonably, save network data traffic, and improve the overall performance of the NCS. A NCS with five control loops is used as the simulation object and carried out by True Time toolbox. The simulation results show that the proposed scheduling approach can improve output control performance of the system, reduce integral absolute error value of the control loops, and improve network utilization. The overall control performance of the system is improved.

scholarly journals Performance Analysis of HSPA Technology for Networked Control System Application

2016 ◽  
Vol 5 (3) ◽  
pp. 165-175
Author(s):  
Muhammad Ary Murti ◽  
◽  
Harijono A. Tjokronegoro ◽  
Edi Leksono ◽  
Wiseto Agung
Keyword(s):  
Control System ◽  
Performance Analysis ◽  
System Application ◽  
Networked Control System ◽  
Networked Control

Design and implementation of C-MEX S-functions in an Android-based networked control system laboratory

2021 ◽  
pp. 014233122110268
Author(s):  
Lei Cao ◽  
Guo-Ping Liu ◽  
Wenshan Hu ◽  
Jahan Zaib Bhatti
Keyword(s):  
Control System ◽  
Networked Control System ◽  
Networked Control ◽  
Control Algorithms ◽  
Basic Block ◽  
Air Bearing ◽  
Experiment Validation ◽  
Functional Blocks ◽  
New Feature ◽  
Three Degree Of Freedom

The Android-based networked control system laboratory (NCSLab) is a remote control laboratory that adopts an extensible architecture, mainly including Android mobile devices, MATLAB servers, controllers and test rigs. In order to conduct various simulations and experiments more effectively in NCSLab, the first key issue that needs to be solved is to enable users to design their own control algorithms or functional blocks on the Android client, rather than just using the basic block libraries provided by the system. So, this paper proposes and implements a scheme for Android-based compilation of C-MEX S-functions. With this new feature, users can design personalized algorithm according to their requirements in the form of S-functions, which can be called and executed after being compiled by MATLAB server. Finally, through the experiment validation of the three-degree-of-freedom air bearing spacecraft platform, it is proved that the method of Android-based C-MEX S-functions is reliable and efficient, and this scheme well enhances the functionality and mobility of Android-based NCSLab.

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