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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
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Journal of Institute of Control, Robotics and Systems
Journal Basic Information
Journal DOI :
Institute of Control, Robotics and Systems
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Volume & Issues
Volume 9, Issue 12 - Dec 2003
Volume 9, Issue 11 - Nov 2003
Volume 9, Issue 10 - Oct 2003
Volume 9, Issue 9 - Sep 2003
Volume 9, Issue 8 - Aug 2003
Volume 9, Issue 7 - Jul 2003
Volume 9, Issue 6 - Jun 2003
Volume 9, Issue 5 - May 2003
Volume 9, Issue 4 - Apr 2003
Volume 9, Issue 3 - Mar 2003
Volume 9, Issue 2 - Feb 2003
Volume 9, Issue 1 - Jan 2003
Selecting the target year
Receding Horizon Control
Journal of Institute of Control, Robotics and Systems, volume 9, issue 3, 2003, Pages 177~185
DOI : 10.5302/J.ICROS.2003.9.3.177
Current issues of receding horizon control scheme are reviewed. The basic idea of receding horizon control is presented first. For unconstrained and constrained systems, the results of closed-loop stability in receding horizon control are surveyed. We investigate the two categories of robustness of receding horizon control : stability robustness and performance robustness. The existing optimization algorithm to solve receding horizon control problem is briefly mentioned. It is shown that receding horizon control has been extended to nonlinear systems without losing good properties such as stability and robustness. Many industrial applications are reported along with extensive references related to receding horizon control.
Eigenvalue Assignment for Linear Time-Varying Systems via Ackermann-like Formula
Journal of Institute of Control, Robotics and Systems, volume 9, issue 3, 2003, Pages 186~195
DOI : 10.5302/J.ICROS.2003.9.3.186
This paper deals with eigenvalue assignment techniques for linear time-varying systems as a way of achieving feedback stabilization. For this, the novel eigenvalue concepts, which are the time-varying counterparts of the conventional (time-invariant) eigenvalue notions, are introduced. Then, the Ackermann-like formulae for SISO/MIMO linear time-varying systems are proposed. It is believed that these techniques are the generalized versions of the Ackermann formulae for linear time-invariant systems. The advantages of the proposed Ackermann-like formulae are that they neither require the transformation of the original system into the phase-variable form nor compute the eigenvalues of the original system. Two examples are given to demonstrate the capabilities of the proposed techniques.
A Study of Web-based Remote Pneumatic Servo Control System Using Java Language
Journal of Institute of Control, Robotics and Systems, volume 9, issue 3, 2003, Pages 196~203
DOI : 10.5302/J.ICROS.2003.9.3.196
Recent increase in accessibility to the internet makes it easy to use the internet-connected devices. The internet could allow any user can reach and command any device that is connected to the network. But these teleoperation systems using the internet connected device have several problems such as the network time delay, data loss and development cost of an application for the communication with each other. One feasible solution is to use local and external network line for the network time delay, transmission control protocol for data loss and Java language to reduce the development period and cost. In this study, web-based remote control system using Java language is newly proposed and implemented to a pneumatic servo control system to solve the time delay, data loss and development cost. We have conducted several experiments using pneumatic rodless cylinder through the internet and verified that the proposed remote control system was very effective.
A Control System Design for the Line-of-Sight Stabilization based on Low-Cost Inertial Sensors
Journal of Institute of Control, Robotics and Systems, volume 9, issue 3, 2003, Pages 204~209
DOI : 10.5302/J.ICROS.2003.9.3.204
The line-of-sight stabilization system is an equipment which is loaded on a vehicle and stabilizes the direction of the line-of-sight of the vision sensor to obtain a not-swayed image in the existence of external disturbances. To obtain accurate Euler angles and angular velocities simultaneously we usually need a control system which uses high-price inertial sensors including Vertical Gyro(VG) or Rate Integrating Gyro(RIG). In this paper, we design and implement a control system of a gimbal, which is a line-of-sight stabilization system using a low-cost mixed algorithm of a rate gyro and an accelerometer instead of a VG and a RIG. In the experiment where we laid the implemented line-of-sight stabilization system on the rate table. we can see the stabilized performance to external disturbances.
A MAP Estimate of Optimal Data Association in Multi-Target Tracking
Journal of Institute of Control, Robotics and Systems, volume 9, issue 3, 2003, Pages 210~217
DOI : 10.5302/J.ICROS.2003.9.3.210
We introduced a scheme for finding an optimal data association matrix that represents the relationships between the measurements and tracks in multi-target tracking (MIT). We considered the relationships between targets and measurements as Markov Random Field and assumed a priori of the associations as a Gibbs distribution. Based on these assumptions, it was possible to reduce the MAP estimate of the association matrix to the energy minimization problem. After then, we defined an energy function over the measurement space that may incorporate most of the important natural constraints. To find the minimizer of the energy function, we derived a new equation in closed form. By introducing Lagrange multiplier, we derived a compact equation for parameters updating. In this manner, a pair of equations that consist of tracking and parameters updating can track the targets adaptively in a very variable environments. For measurements and targets, this algorithm needs only multiplications for each radar scan. Through the experiments, we analyzed and compared this algorithm with other representative algorithm. The result shows that the proposed method is stable, robust, fast enough for real time computation, as well as more accurate than other method.
Fuzzy-based Hybrid Fuzzy-Sliding Mode Controller for the Speed Control of a Hydraulic Inverter Controller
Journal of Institute of Control, Robotics and Systems, volume 9, issue 3, 2003, Pages 218~226
DOI : 10.5302/J.ICROS.2003.9.3.218
Due to the friction characteristics of pump, cylinder packing and passenger car, in the elevation system actuated with hydraulic inverter, there exist dead zones. which cannot be controlled by a PID controller. To overcome the drawbacks, in this paper, we propose a new hybrid fuzzy-sliding mode control scheme, which controls the controller output between a sliding mode control output and a PID control output by fuzzy control method. The proposed hybrid control scheme achieves an improved control performance by using both controllers. We first propose a design method of the hybrid controller far a hydraulic system controlled by inverters, then propose a design method of a hybrid fuzzy-sliding mode centre] scheme. The effectiveness of the proposed control scheme is shown by simulation results, in which the proposed hybrid control method yields better control performance then the PID controlled scheme, not only in the zero-crossing speed region but also in the overall control region including steady-state region.
The Development of Automatic Measurement Algorithm of Concentricity and Roundness using Image Processing Technique
Journal of Institute of Control, Robotics and Systems, volume 9, issue 3, 2003, Pages 227~235
DOI : 10.5302/J.ICROS.2003.9.3.227
We propose an algorithm for the automatic measurement of concentricity and roundness using image processing technique. The proposed measuring method consists of the preprocessing process and the measuring process. In the measuring process, two types of concentricity measurement algorithm and one type of roundness measurement algorithm are proposed. We could measure the concentricity and roundness using input image from CCD camera, without using special measurement equipment. From the experimental results, we could find that the required measurement accuracy specification is sufficiently satisfied using our proposed method.
Internal Recycle Distribution and Heat Transfer Effect for Optimal Design of Dividing Wall Distillation Columns
Journal of Institute of Control, Robotics and Systems, volume 9, issue 3, 2003, Pages 236~241
DOI : 10.5302/J.ICROS.2003.9.3.236
This paper addresses the optimal design of dividing wall distillation column which is rapidly applied in a variety of chemical processes over recent several years because of its high energy saving efficiency. A general dividing wall column model which can cope with the heat transfer through the dividing wall is developed using rigorous computer simulation. Based on the simulation model, the effects of the internal recycle flow distribution around the dividing wall and the heat transfer across the dividing wall on overall system performance are investigated. An improved column design method is suggested to utilize the heat transfer through the wall. The suggested method is compared with the existing method via simulation study in which the proposed design shows improved energy saving result.
Monitoring System Design for the GPS/INS Integrated Navigation System
Journal of Institute of Control, Robotics and Systems, volume 9, issue 3, 2003, Pages 242~250
DOI : 10.5302/J.ICROS.2003.9.3.242
We propose the monitoring system scheme for the CPS/INS integrated navigation system. The design requirements of the monitoring system are suggested and the software scheme based on GUI is proposed. The proposed monitoring system consists of an I/O interface part, a navigation data display part, and a post-processing part. The I/O interface part is responsible for data communication between the monitoring system and a navigation computer unit. The navigation data display part provides various display methods to show the navigation data to user in real-time. The post-processing part collects the navigation data to analyze the performance of navigation system. The proposed monitoring system software was developed using the Visual C++ programming language and a van test was carried out to demonstrate the real-time operation of the monitoring system. The test result shows that the proposed monitoring system can be effectively applied to the CPS/INS integrated navigation system.
Diagnosis of Multiple Crosstalk-Faults in Optical Cross Connects for Optical Burst Switching
Journal of Institute of Control, Robotics and Systems, volume 9, issue 3, 2003, Pages 251~258
DOI : 10.5302/J.ICROS.2003.9.3.251
Optical Switching Matrix (OSM) or Optical Multistage Interconnection Networks (OMINs) comprising photonic switches have been studied extensively as important interconnecting blocks for Optical Cross Connects (OXC) based on Optical Burst Switching (OBS). A basic element of photonic switching networks is a 2
2 directional coupler with two inputs and two outputs. This paper is concerned with the diagnosis of multiple crosstalk-faults in OSM. As the network size becomes larger in these days, the conventional diagnosis methods based on tests and simulation become inefficient, or even more impractical. We propose a simple and easily implementable algorithm for detection and isolation of the multiple crosstalk-faults in OSM. Specifically. we develop an algorithm for isolation of the source fault in switching elements whenever the multiple crosstalk-faults arc detected in OSM. The proposed algorithm is illustrated by an example of 16