Proceedings of the 4th World Congress on Intelligent Control and Automation (Cat. No.02EX527)
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Matrix bounds for the coupled algebraic Riccati equation
Tập 1 - Trang 180-183 vol.1
In this note, we propose lower and upper matrix bounds for the positive semidefinite solution of the unified coupled algebraic Riccati equation (UCARE). Using the results of this note, computational algorithms to solve the UCARE can be established.
#Riccati equations #Control systems #Linear matrix inequalities #Automation #Eigenvalues and eigenfunctions #Algorithm design and analysis #Laboratories #Industrial control #Industrial electronics #Matrices
Model identification and PID control of long time-delay processes
Tập 2 - Trang 900-904 vol.2
A relay feedback identification auto-tuning of PID/PI controller is proposed in this paper, which is capable of controlling long time-delay processes. The real process is approximated via FOPDT or SOPDT models, whose parameters are specified through a modified relay feedback identification method. Applying the zero-pole cancellation principle, the PID/PI controller is tuned according to the specif......
#Three-term control #Relays #Feedback #Automatic control #Automation #Tuning #Mathematical model #Robust control #Process control #Parameter estimation
Simulated robotic hot-line maintenance based on virtual reality
Tập 2 - Trang 1231-1235 vol.2
We construct a simulation system for a live line maintenance robot using virtual reality. The simulation system uses the same input devices and controllers as a real robot system. It provides functions of operator training, human-machine intelligent control simulation, and robotic trajectory simulation. Those simulation data can activate the real robot. The simulation system framework and modeling......
#Virtual reality #Intelligent robots #Robotics and automation #Intelligent control #Partial response channels #Robot control
Design of a mixed distributed computer control system
Tập 4 - Trang 2782-2785 vol.4
In the field of industrial automation, fieldbus is changing the traditional DCS's important position and the architecture of distributed computer control system. However, it is not the time that fieldbus is popularized widely in China because of the factors of economy, technology and industrial automatic level. Therefore, this paper presents a mixed distributed computer control system that is comp......
#Distributed computing #Distributed control #Control systems #Field buses #Automatic control #Communication system control #Electrical equipment industry #Computer industry #Industrial control #Automation
Study on electrohydraulic servo loading system using fuzzy model based predictive control with multi-step linearization
Tập 1 - Trang 312-315 vol.1
Aimed at a multi-channel loading system, a fuzzy model based predictive control with multi-step linearization scheme is proposed. Using a Takagi-Sugeno fuzzy model as a predictive model of the loading system, a linearized fuzzy model with multi-step, the predictive control is applied to the loading system. The result of tests show that this scheme can effectively overcome the unknown influence of ......
#Electrohydraulics #Servomechanisms #Fuzzy control #Fuzzy systems #Predictive models #Predictive control #Takagi-Sugeno model #System testing #Nonlinear control systems #Control nonlinearities
Reheated temperature adaptive fuzzy control system of unit
Tập 1 - Trang 391-395 vol.1
The purpose of this paper is to solve the control problem on the reheated temperature of unit which has such characteristics of time-varying, time delay and multi-disturbance, etc. The traditional control and general fuzzy control are difficult to dispose these matters that the model is time-varying, and the fuzzy rule number increases sharply with the increasing systemic variable number, so that ......
#Adaptive systems #Programmable control #Adaptive control #Fuzzy control #Temperature control #Delay effects #Time varying systems #Fuzzy systems #Error correction #Monitoring
The development of an intelligent small paperless recorder
Tập 4 - Trang 3053-3057 vol.4
Inherited from the successful design of the large paperless recorder, the intelligent small paperless recorder has a modular structure. It also employs the same data acquisition module as the large paperless recorder does. It has a menu driven GUI (full Chinese language), eight multi-purpose input channels (all user configurable), 16-channel relay outputs and 2-channel analog outputs (V/mA). Thoug......
#Displays #Data acquisition #Relays #Graphical user interfaces #Natural languages #Banking #Hardware #Automation #Graphics #Memory
Adaptive and robust composite control of coordinated motion of space robot system with prismatic joint
Tập 2 - Trang 1255-1259 vol.2
In this paper, the coordinated control of the base attitude of the space robot system with prismatic joint and arms is studied. Based on the momentum conservation, the kinematics and dynamics of the system are analyzed. It is shown that the generalized Jacobian matrix and dynamic equations of the system can be linearly dependent on a group of inertial parameters. From the results proposed above, t......
#Programmable control #Adaptive control #Robust control #Motion control #Control systems #Robot kinematics #Orbital robotics #Attitude control #Velocity control #Manipulators
A new method measuring electrical conductivity of nutrient solutions on-line
Tập 3 - Trang 2469-2472 vol.3
For the problem of measuring the electrical conductivity of nutrient solutions in a closed soilless growing system in greenhouse agriculture, a method fitting the model of an electrical conductivity sensor step by step is put forward. The method of sensor calibration and nutrition solution measurement on-line is constructed also. The process of measuring electrical conductivity is introduced in th......
#Conductivity measurement #Electric variables measurement #Soil measurements #Automation #Sun #Agriculture #Sensor systems #Calibration #Curve fitting #Intelligent control
Non-convex states constrained system control algorithm via geometric techniques
Tập 4 - Trang 3210-3214 vol.4
The algorithm of constrained system control via geometric techniques does well in dealing with the control problem of the systems with convex constraints on states and control inputs. In some control applications, the states constraints may be non-convex. It is hard to find a suitable solution for such a system according to the traditional methods. The algorithm of constrained control is on the ba......
#Control systems #Automatic control #Constraint theory #Set theory #Level set #Intelligent control #Automation