Pub Date : 2000-07-26DOI: 10.1109/SICE.2000.889683
Jae Won Choi, Jae Weon Choi
Although a flexible manufacturing system (FMS) is an efficient automated manufacturing system, a fatal deadlock makes the system wait for resources forever. To keep the system live, proper controls are necessary. There have been some suggestions for avoiding deadlocks. We propose an efficient algorithm for control action sequences using dynamic programming for avoiding deadlocks which occur frequently in FMSs. The proposed algorithm guarantees that it could avoid the deadlock completely and make planning for manufacturing products optimal.
{"title":"An efficient algorithm for control action sequences in FMS using dynamic programming","authors":"Jae Won Choi, Jae Weon Choi","doi":"10.1109/SICE.2000.889683","DOIUrl":"https://doi.org/10.1109/SICE.2000.889683","url":null,"abstract":"Although a flexible manufacturing system (FMS) is an efficient automated manufacturing system, a fatal deadlock makes the system wait for resources forever. To keep the system live, proper controls are necessary. There have been some suggestions for avoiding deadlocks. We propose an efficient algorithm for control action sequences using dynamic programming for avoiding deadlocks which occur frequently in FMSs. The proposed algorithm guarantees that it could avoid the deadlock completely and make planning for manufacturing products optimal.","PeriodicalId":254956,"journal":{"name":"SICE 2000. Proceedings of the 39th SICE Annual Conference. International Session Papers (IEEE Cat. No.00TH8545)","volume":"81 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116024219","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2000-07-26DOI: 10.1109/SICE.2000.889688
Yaping Dai, Jie Chen, K. Hirasawa, Youhua Wu
This paper describes an algorithm for fusion of tracks created by radar and IR sensor with different dimensional measurement data. It is assumed these sensors are asynchronous and the measurement data are transmitted to a central station at different rates. By means of the technique of time matching two asynchronous data are fused and then the filter is updated according to the fused information. The rotation Kalman filter algorithm to data fusion is discussed. This approach can effectively solve the problem of nonlinear measurement and reduce the load of calculation.
{"title":"A practical tracking algorithm of multisensor data fusion","authors":"Yaping Dai, Jie Chen, K. Hirasawa, Youhua Wu","doi":"10.1109/SICE.2000.889688","DOIUrl":"https://doi.org/10.1109/SICE.2000.889688","url":null,"abstract":"This paper describes an algorithm for fusion of tracks created by radar and IR sensor with different dimensional measurement data. It is assumed these sensors are asynchronous and the measurement data are transmitted to a central station at different rates. By means of the technique of time matching two asynchronous data are fused and then the filter is updated according to the fused information. The rotation Kalman filter algorithm to data fusion is discussed. This approach can effectively solve the problem of nonlinear measurement and reduce the load of calculation.","PeriodicalId":254956,"journal":{"name":"SICE 2000. Proceedings of the 39th SICE Annual Conference. International Session Papers (IEEE Cat. No.00TH8545)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116954857","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2000-07-26DOI: 10.1109/SICE.2000.889652
T. Matsuzaki, H. Kameda, S. Tsujimichi, Y. Kosuge
It is important for target tracking to decide "gatesize" in clutter environment. When the detection probability is equal to 1.0, the conventional gatesize has a problem that the gatesize becomes infinite. Another problem is that usually the same values have been employed for both the gatesize of a tracking radar and that of a search radar, although such practice has not been verified. To solve these problems, we propose a gatesize computing method which determines the gatesize by means of maximizing the difference between the density of the targets and the density of the clutters in gate. Then using our proposed method, we show that the appropriate value for the gatesize of a tracking radar and that of a search radar are different. The effectiveness of the proposed method has been confirmed through computer simulation.
{"title":"A gatesize computing method in target tracking","authors":"T. Matsuzaki, H. Kameda, S. Tsujimichi, Y. Kosuge","doi":"10.1109/SICE.2000.889652","DOIUrl":"https://doi.org/10.1109/SICE.2000.889652","url":null,"abstract":"It is important for target tracking to decide \"gatesize\" in clutter environment. When the detection probability is equal to 1.0, the conventional gatesize has a problem that the gatesize becomes infinite. Another problem is that usually the same values have been employed for both the gatesize of a tracking radar and that of a search radar, although such practice has not been verified. To solve these problems, we propose a gatesize computing method which determines the gatesize by means of maximizing the difference between the density of the targets and the density of the clutters in gate. Then using our proposed method, we show that the appropriate value for the gatesize of a tracking radar and that of a search radar are different. The effectiveness of the proposed method has been confirmed through computer simulation.","PeriodicalId":254956,"journal":{"name":"SICE 2000. Proceedings of the 39th SICE Annual Conference. International Session Papers (IEEE Cat. No.00TH8545)","volume":"471 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114091939","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2000-07-26DOI: 10.1109/SICE.2000.889668
D. Shin, H.Y. Kim, J. Ha, J. Kim, J.S. Park
A control law using recursive torque methods is designed for a 2-link SCARA robot manipulator. This control scheme uses previous torques acting on drive motors and error dynamics for present torques, and adopts relatively simple numerical methods and control algorithms that can be easily realizable. In order to evaluate the performance and robustness of the suggested control system, a 2-link SCARA robot manipulator is practically implemented by means of a dSPACE interface. It is found that the recursive torque controller shows a good tracking performance in spite of the presence of payload disturbances.
{"title":"Robot manipulator control using recursive torque methods","authors":"D. Shin, H.Y. Kim, J. Ha, J. Kim, J.S. Park","doi":"10.1109/SICE.2000.889668","DOIUrl":"https://doi.org/10.1109/SICE.2000.889668","url":null,"abstract":"A control law using recursive torque methods is designed for a 2-link SCARA robot manipulator. This control scheme uses previous torques acting on drive motors and error dynamics for present torques, and adopts relatively simple numerical methods and control algorithms that can be easily realizable. In order to evaluate the performance and robustness of the suggested control system, a 2-link SCARA robot manipulator is practically implemented by means of a dSPACE interface. It is found that the recursive torque controller shows a good tracking performance in spite of the presence of payload disturbances.","PeriodicalId":254956,"journal":{"name":"SICE 2000. Proceedings of the 39th SICE Annual Conference. International Session Papers (IEEE Cat. No.00TH8545)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125856273","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2000-07-26DOI: 10.1109/SICE.2000.889681
Yang Dongyong, Jian Jingping, Y. Yūzō
In this paper, distal supervised learning control is considered for the nonlinear continuous-stirred tank reactor (CSTR) systems. Multilayer neural networks (BP) are introduced to construct the distal supervised learning control system. The proposed controller consists of an expert coordinator and two BP networks. Extreme control mode or distal supervised learning control mode is activated by expert coordinator based on control errors. The effectiveness of the proposed controller is illustrated through an application to control acetic anhydride hydrolysis reaction in a CSTR system. Results show that the proposed distal supervised learning control is strong in self-learning and easy to realize, and helpful for improving nonlinear control performance.
{"title":"Distal supervised learning control and its application to CSTR systems","authors":"Yang Dongyong, Jian Jingping, Y. Yūzō","doi":"10.1109/SICE.2000.889681","DOIUrl":"https://doi.org/10.1109/SICE.2000.889681","url":null,"abstract":"In this paper, distal supervised learning control is considered for the nonlinear continuous-stirred tank reactor (CSTR) systems. Multilayer neural networks (BP) are introduced to construct the distal supervised learning control system. The proposed controller consists of an expert coordinator and two BP networks. Extreme control mode or distal supervised learning control mode is activated by expert coordinator based on control errors. The effectiveness of the proposed controller is illustrated through an application to control acetic anhydride hydrolysis reaction in a CSTR system. Results show that the proposed distal supervised learning control is strong in self-learning and easy to realize, and helpful for improving nonlinear control performance.","PeriodicalId":254956,"journal":{"name":"SICE 2000. Proceedings of the 39th SICE Annual Conference. International Session Papers (IEEE Cat. No.00TH8545)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131386915","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2000-07-26DOI: 10.1109/SICE.2000.889690
T. Moriyama, M. Uehira, S. Sugihara, T. Yoshida
The aim of the study is the development of an automatic chloride film detector of the treatment for waste garbage plastics, i.e., the Sanuki refuse derived fuel system against dioxin. The method is a blue light absorption detecting method for the transparent chloride plastic film of garbage wrapping using two dimensional FFT analyzer instead of X-ray or CuCl/sub 2/ green flame.
{"title":"Optical chloride film detector against dioxin","authors":"T. Moriyama, M. Uehira, S. Sugihara, T. Yoshida","doi":"10.1109/SICE.2000.889690","DOIUrl":"https://doi.org/10.1109/SICE.2000.889690","url":null,"abstract":"The aim of the study is the development of an automatic chloride film detector of the treatment for waste garbage plastics, i.e., the Sanuki refuse derived fuel system against dioxin. The method is a blue light absorption detecting method for the transparent chloride plastic film of garbage wrapping using two dimensional FFT analyzer instead of X-ray or CuCl/sub 2/ green flame.","PeriodicalId":254956,"journal":{"name":"SICE 2000. Proceedings of the 39th SICE Annual Conference. International Session Papers (IEEE Cat. No.00TH8545)","volume":"143 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116612169","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2000-07-26DOI: 10.1109/SICE.2000.889666
K. Uahchinkul, J. Ngamwiwit, S. Phoojaruenchanachai
In this paper, we present the theoretical development to stabilize a class of uncertain time-delay system and its application to model-following systems. The system under consideration is described in state space model containing state delay, uncertain parameters and disturbance. The main idea is to reduce the state of system into an equivalent one, by employing generalized transformation, which is easier to analyze its behavior and stability. Then, the min-max approach is employed to find the stabilizing control law. After that, a class of model-following system is introduced for controlling the error between the model and process. With the extended theorem, the suitable control law that guarantees model tracking is derived. Finally, two numerical simulations are illustrated to show the algorithm for applying the proposed theorems and the effectiveness of the designed control law in stabilizing the controlled systems.
{"title":"Robust stabilization of uncertain delayed systems: application to model-following systems","authors":"K. Uahchinkul, J. Ngamwiwit, S. Phoojaruenchanachai","doi":"10.1109/SICE.2000.889666","DOIUrl":"https://doi.org/10.1109/SICE.2000.889666","url":null,"abstract":"In this paper, we present the theoretical development to stabilize a class of uncertain time-delay system and its application to model-following systems. The system under consideration is described in state space model containing state delay, uncertain parameters and disturbance. The main idea is to reduce the state of system into an equivalent one, by employing generalized transformation, which is easier to analyze its behavior and stability. Then, the min-max approach is employed to find the stabilizing control law. After that, a class of model-following system is introduced for controlling the error between the model and process. With the extended theorem, the suitable control law that guarantees model tracking is derived. Finally, two numerical simulations are illustrated to show the algorithm for applying the proposed theorems and the effectiveness of the designed control law in stabilizing the controlled systems.","PeriodicalId":254956,"journal":{"name":"SICE 2000. Proceedings of the 39th SICE Annual Conference. International Session Papers (IEEE Cat. No.00TH8545)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131122518","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2000-07-26DOI: 10.1109/SICE.2000.889679
J. Tanaka, Y. Miyake
An organism is considered to have dynamics based on some interactions, and shows complicated behavior. We suggested an experiment to investigate the interaction between an artificial oscillator, which causes entrainment, and metabolic oscillation in an organism, in this case Physarum plasmodium. A coupled oscillator model for Physarum shows mutual entrainment among the oscillators and formed a phase pattern which is shown in tactics response of Physarum. The results shows that mutual entrainment could be observed, intracellular rhythm was modulated with artificial oscillation and plasmodium migrated according to the orientation of intracellular rhythm modulation. These results are not contradictory with past investigation of tactic response.
{"title":"Modulation of intracellular rhythm and behavior of Physarum plasmodium under the condition of mutual entrainment","authors":"J. Tanaka, Y. Miyake","doi":"10.1109/SICE.2000.889679","DOIUrl":"https://doi.org/10.1109/SICE.2000.889679","url":null,"abstract":"An organism is considered to have dynamics based on some interactions, and shows complicated behavior. We suggested an experiment to investigate the interaction between an artificial oscillator, which causes entrainment, and metabolic oscillation in an organism, in this case Physarum plasmodium. A coupled oscillator model for Physarum shows mutual entrainment among the oscillators and formed a phase pattern which is shown in tactics response of Physarum. The results shows that mutual entrainment could be observed, intracellular rhythm was modulated with artificial oscillation and plasmodium migrated according to the orientation of intracellular rhythm modulation. These results are not contradictory with past investigation of tactic response.","PeriodicalId":254956,"journal":{"name":"SICE 2000. Proceedings of the 39th SICE Annual Conference. International Session Papers (IEEE Cat. No.00TH8545)","volume":"158 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114398731","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2000-07-26DOI: 10.1109/SICE.2000.889695
N. Kitabayashi
The relationship between the development of learning language by infants and Zipf's law is addressed in this study. There are several stages in the development of language learning. The author focuses on the transition from a particular stage to another. For example, when an infant begins to use a new word, there is a transition from coarse-graining to fine-graining in terms of recognizing his/her own environment by words. Before a new word is used, its meaning and/or its indicated matter is outside of the infant's recognition. There is a great gap between the fine-grained world and coarse-graining inside. The transition following Zipf's law is reported.
{"title":"Occurrence of Zipf's law of transition in the processes of learning the language","authors":"N. Kitabayashi","doi":"10.1109/SICE.2000.889695","DOIUrl":"https://doi.org/10.1109/SICE.2000.889695","url":null,"abstract":"The relationship between the development of learning language by infants and Zipf's law is addressed in this study. There are several stages in the development of language learning. The author focuses on the transition from a particular stage to another. For example, when an infant begins to use a new word, there is a transition from coarse-graining to fine-graining in terms of recognizing his/her own environment by words. Before a new word is used, its meaning and/or its indicated matter is outside of the infant's recognition. There is a great gap between the fine-grained world and coarse-graining inside. The transition following Zipf's law is reported.","PeriodicalId":254956,"journal":{"name":"SICE 2000. Proceedings of the 39th SICE Annual Conference. International Session Papers (IEEE Cat. No.00TH8545)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128517682","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2000-07-26DOI: 10.1109/SICE.2000.889664
Ki Baek Kim, W. Kwon
In this paper, intervalwise receding horizon controls (IRHC) are proposed for linear continuous time-varying systems. Terminal inequality conditions are suggested for those systems under which the closed-loop stability is guaranteed with the proposed IRHC. The results in this paper are also applicable to periodic and time-invariant systems which belong to the class of time-varying systems. In addition, the previous results of pointwise receding horizon controls (PRHC) for linear systems and intervalwise receding horizon controls for linear periodic systems are handled as special cases of the results in this paper.
{"title":"Stability of intervalwise receding horizon controls for linear continuous time-varying systems","authors":"Ki Baek Kim, W. Kwon","doi":"10.1109/SICE.2000.889664","DOIUrl":"https://doi.org/10.1109/SICE.2000.889664","url":null,"abstract":"In this paper, intervalwise receding horizon controls (IRHC) are proposed for linear continuous time-varying systems. Terminal inequality conditions are suggested for those systems under which the closed-loop stability is guaranteed with the proposed IRHC. The results in this paper are also applicable to periodic and time-invariant systems which belong to the class of time-varying systems. In addition, the previous results of pointwise receding horizon controls (PRHC) for linear systems and intervalwise receding horizon controls for linear periodic systems are handled as special cases of the results in this paper.","PeriodicalId":254956,"journal":{"name":"SICE 2000. Proceedings of the 39th SICE Annual Conference. International Session Papers (IEEE Cat. No.00TH8545)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122097512","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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