Pub Date : 2008-10-21DOI: 10.1109/SICE.2008.4654786
M. Takano
This paper presents the concept of human-centered industrial control systems (ICSs) that employ network-based controllers interconnected with business systems. Seamless communication and computing are key issues for enabling remote operations of human-centered interfaces, from any location, as well as information sharing. In addition, the flexible reconfiguration of field devices contributes to the continual improvement of manufacturing processes.
{"title":"Human-centered industrial control systems through seamless communication and flexible reconfiguration","authors":"M. Takano","doi":"10.1109/SICE.2008.4654786","DOIUrl":"https://doi.org/10.1109/SICE.2008.4654786","url":null,"abstract":"This paper presents the concept of human-centered industrial control systems (ICSs) that employ network-based controllers interconnected with business systems. Seamless communication and computing are key issues for enabling remote operations of human-centered interfaces, from any location, as well as information sharing. In addition, the flexible reconfiguration of field devices contributes to the continual improvement of manufacturing processes.","PeriodicalId":152347,"journal":{"name":"2008 SICE Annual Conference","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125513312","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 : 2008-10-21DOI: 10.1109/SICE.2008.4654917
J. Widiatmo, K. Yamazawa, K. Sato, J. Tamba, M. Arai
Tin-point cells were fabricated using high grade tin samples purchased from some different metal sources. Temperature measurements during the solid-liquid equilibrium condition, under which the tin point is defined, were conducted for evaluating the quality of the cells. Different methods for the realization of tin point were compared by means of the fabricated cells. Comparisons of tin-point temperatures realized using the conventional and the newly developed cells were also conducted. On the other hand, chemical assay provided by the tin sample manufacturer was used to estimate the tin point departure from that ideally defined by the International Temperature Scale of 1990 (ITS-90). The tin point departure, the cell comparison results and the analysis of the temperature measurements during the solid-liquid phase change were discussed for estimating the uncertainty of tin-point realization due to impurity existence. The present paper outlines the apparatus which includes the tin cell and the furnace, the temperature measurements and the evaluation of impurity effect to the tin point realization.
{"title":"Study on the realization of tin point","authors":"J. Widiatmo, K. Yamazawa, K. Sato, J. Tamba, M. Arai","doi":"10.1109/SICE.2008.4654917","DOIUrl":"https://doi.org/10.1109/SICE.2008.4654917","url":null,"abstract":"Tin-point cells were fabricated using high grade tin samples purchased from some different metal sources. Temperature measurements during the solid-liquid equilibrium condition, under which the tin point is defined, were conducted for evaluating the quality of the cells. Different methods for the realization of tin point were compared by means of the fabricated cells. Comparisons of tin-point temperatures realized using the conventional and the newly developed cells were also conducted. On the other hand, chemical assay provided by the tin sample manufacturer was used to estimate the tin point departure from that ideally defined by the International Temperature Scale of 1990 (ITS-90). The tin point departure, the cell comparison results and the analysis of the temperature measurements during the solid-liquid phase change were discussed for estimating the uncertainty of tin-point realization due to impurity existence. The present paper outlines the apparatus which includes the tin cell and the furnace, the temperature measurements and the evaluation of impurity effect to the tin point realization.","PeriodicalId":152347,"journal":{"name":"2008 SICE Annual Conference","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126783651","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 : 2008-10-21DOI: 10.1109/SICE.2008.4655111
H. Mohamed, S.S. Yang, Mahmoud Moghavvemi
This paper proposes a fault tolerant control design that consists of two parts: a nominal performance controller and a fault detection element to provide fault compensating signals to the feedback loop. The nominal controller can have any given structure that satisfies the performance specification. The detection element will operate in parallel with the system until a fault is detected. At this time, the compensation enters the feedback loop; when a a sensor failure is detected, the controller structure is augmented by signals from plant model to compensate for the fault. To increase the robustness of the proposed control system, a Lyapunov stability based sliding mode controller is designed and used as the nominal controller is this paper. This work presents simulation results to demonstrate how the proposed model based feedback control structure can be designed to tolerate sensor faults. An induction motor control system is used as a case study for the implementation. The results of the simulation for controlling the speed of the induction motor demonstrate the applicability of the proposed FTCS scheme.
{"title":"Sliding mode sensor fault tolerant control structure for induction motor","authors":"H. Mohamed, S.S. Yang, Mahmoud Moghavvemi","doi":"10.1109/SICE.2008.4655111","DOIUrl":"https://doi.org/10.1109/SICE.2008.4655111","url":null,"abstract":"This paper proposes a fault tolerant control design that consists of two parts: a nominal performance controller and a fault detection element to provide fault compensating signals to the feedback loop. The nominal controller can have any given structure that satisfies the performance specification. The detection element will operate in parallel with the system until a fault is detected. At this time, the compensation enters the feedback loop; when a a sensor failure is detected, the controller structure is augmented by signals from plant model to compensate for the fault. To increase the robustness of the proposed control system, a Lyapunov stability based sliding mode controller is designed and used as the nominal controller is this paper. This work presents simulation results to demonstrate how the proposed model based feedback control structure can be designed to tolerate sensor faults. An induction motor control system is used as a case study for the implementation. The results of the simulation for controlling the speed of the induction motor demonstrate the applicability of the proposed FTCS scheme.","PeriodicalId":152347,"journal":{"name":"2008 SICE Annual Conference","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126942451","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 : 2008-10-21DOI: 10.1109/SICE.2008.4654914
T. Nishi, K. Shimatani, M. Inuiguchi
In this paper, we propose a Lagrangian decomposition and coordination method for solving scheduling problems by the decomposition of timed Petri nets. The timed Petri net is decomposed into several subnets so that the subproblem for each subnet can be easily solved. The state space analysis is utilized to determine the decomposition strategy for timed Petri nets. The Lagrangian decomposition and coordination technique is developed to evaluate the optimality of solution. The proposed method is applied to AGV routing problems and flowshop scheduling problems. The effectiveness of the proposed method is demonstrated by comparing the performance with the conventional method.
{"title":"Lagrangian relaxation approach for solving optimal firing sequence problems by decomposition of timed Petri Nets","authors":"T. Nishi, K. Shimatani, M. Inuiguchi","doi":"10.1109/SICE.2008.4654914","DOIUrl":"https://doi.org/10.1109/SICE.2008.4654914","url":null,"abstract":"In this paper, we propose a Lagrangian decomposition and coordination method for solving scheduling problems by the decomposition of timed Petri nets. The timed Petri net is decomposed into several subnets so that the subproblem for each subnet can be easily solved. The state space analysis is utilized to determine the decomposition strategy for timed Petri nets. The Lagrangian decomposition and coordination technique is developed to evaluate the optimality of solution. The proposed method is applied to AGV routing problems and flowshop scheduling problems. The effectiveness of the proposed method is demonstrated by comparing the performance with the conventional method.","PeriodicalId":152347,"journal":{"name":"2008 SICE Annual Conference","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126946331","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 : 2008-10-21DOI: 10.1109/SICE.2008.4655198
R. Kobayashi, T. Tanaka, H. Nakamura, T. Shirahata, H. Sugiura
Chronic smoking increases number of pulmonary emphysema patient. It is difficult to cure pulmonary emphysema, because alveoli are destroyed. Early discovery is desired to stop the progress of the disease. Diagnosis imaging by CT images gives early detection. But diagnostician mares a diagnosis basis of their experience, and it is subjective. I compare expiratory and inspiratory state of CT images of lung to give objective criterion to discriminate degree of severity of pulmonary emphysema.
{"title":"Algorithm of pulmonary emphysema analysis using comparing with expiratory and inspiratory state of CT images","authors":"R. Kobayashi, T. Tanaka, H. Nakamura, T. Shirahata, H. Sugiura","doi":"10.1109/SICE.2008.4655198","DOIUrl":"https://doi.org/10.1109/SICE.2008.4655198","url":null,"abstract":"Chronic smoking increases number of pulmonary emphysema patient. It is difficult to cure pulmonary emphysema, because alveoli are destroyed. Early discovery is desired to stop the progress of the disease. Diagnosis imaging by CT images gives early detection. But diagnostician mares a diagnosis basis of their experience, and it is subjective. I compare expiratory and inspiratory state of CT images of lung to give objective criterion to discriminate degree of severity of pulmonary emphysema.","PeriodicalId":152347,"journal":{"name":"2008 SICE Annual Conference","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115031808","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 : 2008-10-21DOI: 10.1109/SICE.2008.4654763
Y. Yamauchi, H. Fujimoto
The motion stability of vehicle depends on yaw-rate and side-slip angle. These variables influence each other, so we applied decoupling control for yaw-rate and side-slip angle for electric vehicle (EV) with active steering and torque difference between left and right in-wheel motors. However the robustness of decoupling control is fragile for road condition. In this paper, we propose lateral force observer (LFO) which is more robust against variation of cornering stiffness. Then we apply LFO and yaw-moment observer (YMO) to our EV with active steering and two in-wheel motors. The results of simulations and experiments show that the proposed method achives better performance than our conventional method.
{"title":"Proposal of lateral force observer with active steering for electric vehicle","authors":"Y. Yamauchi, H. Fujimoto","doi":"10.1109/SICE.2008.4654763","DOIUrl":"https://doi.org/10.1109/SICE.2008.4654763","url":null,"abstract":"The motion stability of vehicle depends on yaw-rate and side-slip angle. These variables influence each other, so we applied decoupling control for yaw-rate and side-slip angle for electric vehicle (EV) with active steering and torque difference between left and right in-wheel motors. However the robustness of decoupling control is fragile for road condition. In this paper, we propose lateral force observer (LFO) which is more robust against variation of cornering stiffness. Then we apply LFO and yaw-moment observer (YMO) to our EV with active steering and two in-wheel motors. The results of simulations and experiments show that the proposed method achives better performance than our conventional method.","PeriodicalId":152347,"journal":{"name":"2008 SICE Annual Conference","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116250088","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 : 2008-10-21DOI: 10.1109/SICE.2008.4655022
T. Modegi
We are developing infrastructure tools of wide-area monitoring used for such as disaster damaged areas or traffic conditions, using Earth observation satellite images. Especially, we are focusing on developing a small object recognition tool for satellite images, which enables extract automobile patterns in high-resolution satellite images such as QuickBird panchromatic images, for example. Although, resolution of optical sensors installed in the current earth observation satellites has been highly advanced, their pixel resolution is not enough for identifying each small object such as an automobile by the currently available pattern matching techniques. Whereas, the pattern matching calculation load of high-resolution images becomes bigger, it will take tremendous time for searching whole objects included in a slice of satellite images. In order to overcome these problems, we propose a structured template matching technique for recognizing small objects in satellite images, which consists of a micro-template matching, clustered micro-template matching and macro-template matching. In this paper, we describe an abstract of our proposed method and present its experimental results.
{"title":"Small object recognition techniques based on structured template matching for high-resolution satellite images","authors":"T. Modegi","doi":"10.1109/SICE.2008.4655022","DOIUrl":"https://doi.org/10.1109/SICE.2008.4655022","url":null,"abstract":"We are developing infrastructure tools of wide-area monitoring used for such as disaster damaged areas or traffic conditions, using Earth observation satellite images. Especially, we are focusing on developing a small object recognition tool for satellite images, which enables extract automobile patterns in high-resolution satellite images such as QuickBird panchromatic images, for example. Although, resolution of optical sensors installed in the current earth observation satellites has been highly advanced, their pixel resolution is not enough for identifying each small object such as an automobile by the currently available pattern matching techniques. Whereas, the pattern matching calculation load of high-resolution images becomes bigger, it will take tremendous time for searching whole objects included in a slice of satellite images. In order to overcome these problems, we propose a structured template matching technique for recognizing small objects in satellite images, which consists of a micro-template matching, clustered micro-template matching and macro-template matching. In this paper, we describe an abstract of our proposed method and present its experimental results.","PeriodicalId":152347,"journal":{"name":"2008 SICE Annual Conference","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122567848","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 : 2008-10-21DOI: 10.1109/SICE.2008.4654852
T. Hashizume, H. Kitagawa, I. Yoneda, M. Takami, S. Fujisawa, O. Sueda, M. Kamata
The design of the boundary curb between pavement and roadway constructed in the crosswalk is requested to secure safety and smooth traffic for all passing people. It is preferable to set the step of curb to be about 2 cm for the visually handicapped persons to ascertain the boundary. However, this step is a barrier for the wheelchair user. This research aims the quantitative evaluation of the typical existing curbs from wheelchair userpsilas viewpoint, and the final proposal of the universal design of an easy-to-use curb for all. The wheelchair userpsilas body vibration and body load were examined by using the three directional accelerometers and the torque meter equipped wheelchair. It was shown to be able to evaluate the curb objectively by assuming the body vibration and the wheelchair driving torque as a measure.
{"title":"Study on the wheelchair user’s body vibration and wheelchair driving torque when wheelchair is ascending / descending the boundary curb between pavement and roadway","authors":"T. Hashizume, H. Kitagawa, I. Yoneda, M. Takami, S. Fujisawa, O. Sueda, M. Kamata","doi":"10.1109/SICE.2008.4654852","DOIUrl":"https://doi.org/10.1109/SICE.2008.4654852","url":null,"abstract":"The design of the boundary curb between pavement and roadway constructed in the crosswalk is requested to secure safety and smooth traffic for all passing people. It is preferable to set the step of curb to be about 2 cm for the visually handicapped persons to ascertain the boundary. However, this step is a barrier for the wheelchair user. This research aims the quantitative evaluation of the typical existing curbs from wheelchair userpsilas viewpoint, and the final proposal of the universal design of an easy-to-use curb for all. The wheelchair userpsilas body vibration and body load were examined by using the three directional accelerometers and the torque meter equipped wheelchair. It was shown to be able to evaluate the curb objectively by assuming the body vibration and the wheelchair driving torque as a measure.","PeriodicalId":152347,"journal":{"name":"2008 SICE Annual Conference","volume":"272 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122774996","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 : 2008-10-21DOI: 10.1109/SICE.2008.4654981
H. Begum, M. Okamoto, S. Tanaka
A method to measure the diameter of deformed bars in reinforced concrete structures using an electromagnetic wave radar is proposed. This method focuses on the measurement of the ribpsilas pitch of the bar and then obtains the diameter of the bar from the standard relationship between the ribpsilas pitch and the diameter. For the measurement of the pitch, variation of the propagation times of the electromagnetic waves to and from the bar along its length is first obtained and then Kalman filter and maximum likelihood method is applied to the dynamic model of the propagation time variation. Lastly, the frequency analysis of the proposed method is proved to be more reliable than the well-known FFT by experiment.
{"title":"Measuring the diameter of reinforcing bars in concrete nondestructively using electromagnetic wave radar","authors":"H. Begum, M. Okamoto, S. Tanaka","doi":"10.1109/SICE.2008.4654981","DOIUrl":"https://doi.org/10.1109/SICE.2008.4654981","url":null,"abstract":"A method to measure the diameter of deformed bars in reinforced concrete structures using an electromagnetic wave radar is proposed. This method focuses on the measurement of the ribpsilas pitch of the bar and then obtains the diameter of the bar from the standard relationship between the ribpsilas pitch and the diameter. For the measurement of the pitch, variation of the propagation times of the electromagnetic waves to and from the bar along its length is first obtained and then Kalman filter and maximum likelihood method is applied to the dynamic model of the propagation time variation. Lastly, the frequency analysis of the proposed method is proved to be more reliable than the well-known FFT by experiment.","PeriodicalId":152347,"journal":{"name":"2008 SICE Annual Conference","volume":"76 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114155772","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 : 2008-10-21DOI: 10.1109/SICE.2008.4655130
S. Nishifuji, I. Miyahara
Spatiotemporal responses of brain alpha wave to unpleasant and pleasant acoustic stimuli are investigated in terms of the amplitude and phase of the alpha wave. The amplitude of the alpha wave is significantly reduced not only during listening to unpleasant acoustic stimuli but also after listening to the stimuli such as teeth gnashing and a single frequency tone with a frequency of 5 K Hz. Amplitude fluctuation is monotonically increased from the onset to 100 s after the offset of listening to the unpleasant stimuli. Such amplitude instability is also observed during listening to pleasant acoustic stimuli such as classical music and babble of a stream, but is not statistically significant after listening to the stimuli. Temporal phase change rate of the alpha wave is significantly increased during and after listening to the unpleasant acoustic stimuli, whereas it is not significantly changed for the pleasant music. The destabilization effect of the unpleasant stimuli on the alpha wave seems to remain for a longer period than that of the pleasant stimuli.
{"title":"Destabilization of alpha wave during and after listening to unpleasant and pleasant acoustic stimuli","authors":"S. Nishifuji, I. Miyahara","doi":"10.1109/SICE.2008.4655130","DOIUrl":"https://doi.org/10.1109/SICE.2008.4655130","url":null,"abstract":"Spatiotemporal responses of brain alpha wave to unpleasant and pleasant acoustic stimuli are investigated in terms of the amplitude and phase of the alpha wave. The amplitude of the alpha wave is significantly reduced not only during listening to unpleasant acoustic stimuli but also after listening to the stimuli such as teeth gnashing and a single frequency tone with a frequency of 5 K Hz. Amplitude fluctuation is monotonically increased from the onset to 100 s after the offset of listening to the unpleasant stimuli. Such amplitude instability is also observed during listening to pleasant acoustic stimuli such as classical music and babble of a stream, but is not statistically significant after listening to the stimuli. Temporal phase change rate of the alpha wave is significantly increased during and after listening to the unpleasant acoustic stimuli, whereas it is not significantly changed for the pleasant music. The destabilization effect of the unpleasant stimuli on the alpha wave seems to remain for a longer period than that of the pleasant stimuli.","PeriodicalId":152347,"journal":{"name":"2008 SICE Annual Conference","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114390134","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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