Pub Date : 2000-09-21DOI: 10.1109/IWADS.2000.880901
Zhang Li, Li Qun-zhan
This paper presents the parameter design of components of thyristor switched capacitor (TSC) compensation with step-down transformer under the restriction of reactive power balance, and also mentions the pattern of TSC cooperated with fixed capacitor banks. The design and simulation is fully automated by the visual CVI. According to the data measured on the spot, the operation of the selected scheme is reappeared.
{"title":"Application of TSC in reactive compensation in traction substations","authors":"Zhang Li, Li Qun-zhan","doi":"10.1109/IWADS.2000.880901","DOIUrl":"https://doi.org/10.1109/IWADS.2000.880901","url":null,"abstract":"This paper presents the parameter design of components of thyristor switched capacitor (TSC) compensation with step-down transformer under the restriction of reactive power balance, and also mentions the pattern of TSC cooperated with fixed capacitor banks. The design and simulation is fully automated by the visual CVI. According to the data measured on the spot, the operation of the selected scheme is reappeared.","PeriodicalId":248775,"journal":{"name":"Proceedings 2000 International Workshop on Autonomous Decentralized System (Cat. No.00EX449)","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115623633","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 : 2000-09-21DOI: 10.1109/IWADS.2000.880896
J. Kosakaya, K. Yamaoka, R. Sugita
Through our research, we have developed a unique, autonomous decentralized system that can be used in the water control field. In conventional control systems, certain send-and-receive functions are installed in the front-end processor (FEP) of the master station according to various properties of the information arriving from field terminals (FTs). The host computer reacts by sending control data to the FTs in accordance with the pre-installed optimum control algorithm, which receives transmitted information from the FEP. Our method intellectualizes a FT to be an intelligent field terminal (IFT) which judges the diverse information from devices of other FTs automatically and autonomously without depending on the host CPU or the FEP. The IFT provides multi-agent functions which can distinguish certain information conditions from other IFTs and can cooperate with the diverse functional agents of an IFT to resolve data conflicts among IFTs.
{"title":"Multi-agent intelligent field terminals for autonomous decentralized water delivery control systems","authors":"J. Kosakaya, K. Yamaoka, R. Sugita","doi":"10.1109/IWADS.2000.880896","DOIUrl":"https://doi.org/10.1109/IWADS.2000.880896","url":null,"abstract":"Through our research, we have developed a unique, autonomous decentralized system that can be used in the water control field. In conventional control systems, certain send-and-receive functions are installed in the front-end processor (FEP) of the master station according to various properties of the information arriving from field terminals (FTs). The host computer reacts by sending control data to the FTs in accordance with the pre-installed optimum control algorithm, which receives transmitted information from the FEP. Our method intellectualizes a FT to be an intelligent field terminal (IFT) which judges the diverse information from devices of other FTs automatically and autonomously without depending on the host CPU or the FEP. The IFT provides multi-agent functions which can distinguish certain information conditions from other IFTs and can cooperate with the diverse functional agents of an IFT to resolve data conflicts among IFTs.","PeriodicalId":248775,"journal":{"name":"Proceedings 2000 International Workshop on Autonomous Decentralized System (Cat. No.00EX449)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129530543","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 : 2000-09-21DOI: 10.1109/IWADS.2000.880899
Xie Shaofeng, Li Qunzhan, He Jianmin, W. Mingli
The paper presents an analysis for the control strategy of symmetry compensation system (SCS) of traction power supply system in phase (TPSSIP). The theory of traction power supply system in phase and three study conditions are classified. The method that conforms the capacity of symmetry compensation system is outlined. The control strategy of SCS is validated by simulation program.
{"title":"Control strategy of symmetry compensation system of traction power supply system in phase","authors":"Xie Shaofeng, Li Qunzhan, He Jianmin, W. Mingli","doi":"10.1109/IWADS.2000.880899","DOIUrl":"https://doi.org/10.1109/IWADS.2000.880899","url":null,"abstract":"The paper presents an analysis for the control strategy of symmetry compensation system (SCS) of traction power supply system in phase (TPSSIP). The theory of traction power supply system in phase and three study conditions are classified. The method that conforms the capacity of symmetry compensation system is outlined. The control strategy of SCS is validated by simulation program.","PeriodicalId":248775,"journal":{"name":"Proceedings 2000 International Workshop on Autonomous Decentralized System (Cat. No.00EX449)","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121936390","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 : 2000-09-21DOI: 10.1109/IWADS.2000.880889
M. Matsumoto
Introduces application examples of information technology as it is applied in several fields of the railway system, namely transportation and safety, service, maintenance and the Internet. This paper shows that safety, efficiency and convenience have been improved in the areas of railway use, operations and maintenance. This is followed by a section on a new train control system for high-density lines that uses methods for transmitting information to the train about the distance to the position at which the train must stop, which is necessary for train control. This system is realized through the advanced application of information technology. Until now, it has been impossible to realize efficient operations in high-density lines due to limitations of existing signal technology. However, this has now become possible with the new train control system. The paper introduces the information technology used in this system and future developments.
{"title":"The revolution of railway system by using advanced information technology","authors":"M. Matsumoto","doi":"10.1109/IWADS.2000.880889","DOIUrl":"https://doi.org/10.1109/IWADS.2000.880889","url":null,"abstract":"Introduces application examples of information technology as it is applied in several fields of the railway system, namely transportation and safety, service, maintenance and the Internet. This paper shows that safety, efficiency and convenience have been improved in the areas of railway use, operations and maintenance. This is followed by a section on a new train control system for high-density lines that uses methods for transmitting information to the train about the distance to the position at which the train must stop, which is necessary for train control. This system is realized through the advanced application of information technology. Until now, it has been impossible to realize efficient operations in high-density lines due to limitations of existing signal technology. However, this has now become possible with the new train control system. The paper introduces the information technology used in this system and future developments.","PeriodicalId":248775,"journal":{"name":"Proceedings 2000 International Workshop on Autonomous Decentralized System (Cat. No.00EX449)","volume":"214 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132389969","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 : 2000-09-21DOI: 10.1109/IWADS.2000.880904
Yinong Chen, Zhongshi He
An ongoing project of the Programme for Highly Dependable Systems (PHDS) at the University of the Witwatersrand is the development of a dependable decentralised system using readily available hardware and software components. An experimental system has been developed to support multiple-task applications with different levels of criticality. Fault-tolerant protocols are used to detect faults, to mask incorrect results from faulty nodes. A task in a faulty node can he recovered through a system reconfiguration or task reallocation. A faulty node can he repaired and reintegrated into the system. This paper focuses on modelling the system under the occurrence of faults, reconfiguration and repair. The method developed can be used to evaluate individual task's reliability, risk and availability.
{"title":"Task-oriented modelling of autonomous decentralised systems","authors":"Yinong Chen, Zhongshi He","doi":"10.1109/IWADS.2000.880904","DOIUrl":"https://doi.org/10.1109/IWADS.2000.880904","url":null,"abstract":"An ongoing project of the Programme for Highly Dependable Systems (PHDS) at the University of the Witwatersrand is the development of a dependable decentralised system using readily available hardware and software components. An experimental system has been developed to support multiple-task applications with different levels of criticality. Fault-tolerant protocols are used to detect faults, to mask incorrect results from faulty nodes. A task in a faulty node can he recovered through a system reconfiguration or task reallocation. A faulty node can he repaired and reintegrated into the system. This paper focuses on modelling the system under the occurrence of faults, reconfiguration and repair. The method developed can be used to evaluate individual task's reliability, risk and availability.","PeriodicalId":248775,"journal":{"name":"Proceedings 2000 International Workshop on Autonomous Decentralized System (Cat. No.00EX449)","volume":"107 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133569820","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 : 2000-09-21DOI: 10.1109/IWADS.2000.880881
P. Deng, P.Z. Fan
In this paper a mobile position-based dynamic location algorithm (MPBDL) is proposed based on measured time of arrival (TOA). This algorithm can be used in cellular networks to estimate the mobile location from TOA information detected by several base stations (BS). The TOA number and its corresponding weight utilized in this algorithm can be dynamically adjusted according to the distance between the mobile station (MS) and serving base station. A location estimate can also be made if only the TOA and angle of arrival (AOA) are measured by the serving BS. Therefore this algorithm could be applied to most cellular networks to make the MS location estimate. Simulation results demonstrate that the location performance of this algorithm is satisfactory in three typical mobile communication channels.
{"title":"An efficient position-based dynamic location algorithm","authors":"P. Deng, P.Z. Fan","doi":"10.1109/IWADS.2000.880881","DOIUrl":"https://doi.org/10.1109/IWADS.2000.880881","url":null,"abstract":"In this paper a mobile position-based dynamic location algorithm (MPBDL) is proposed based on measured time of arrival (TOA). This algorithm can be used in cellular networks to estimate the mobile location from TOA information detected by several base stations (BS). The TOA number and its corresponding weight utilized in this algorithm can be dynamically adjusted according to the distance between the mobile station (MS) and serving base station. A location estimate can also be made if only the TOA and angle of arrival (AOA) are measured by the serving BS. Therefore this algorithm could be applied to most cellular networks to make the MS location estimate. Simulation results demonstrate that the location performance of this algorithm is satisfactory in three typical mobile communication channels.","PeriodicalId":248775,"journal":{"name":"Proceedings 2000 International Workshop on Autonomous Decentralized System (Cat. No.00EX449)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124224864","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 : 2000-09-21DOI: 10.1109/IWADS.2000.880885
Zhigang Liu, Yongdong Tan, Q. Qian
As a breakthrough over conventional systems a new kind of computer control system model, the autonomous decentralized system (ADS) is proposed. ADS makes the on-line expansion fault-tolerance and on-line maintenance of the system possible. In addition, a new kind of industrial control system, the fieldbus control system (FCS) arises, which introduces the concept of communication and management in the network into the industrial control field. DeviceNet based on CAN (controller area network) was raised as one of the fieldbuses in 1998, which makes the system's integration easier and enhances the system's interoperability. In the paper, the applications of some ideas of ADS in DeviceNet are discussed and some comparisons between ADS and DeviceNet are presented.
{"title":"The idea application of autonomous decentralized system in DeviceNet system","authors":"Zhigang Liu, Yongdong Tan, Q. Qian","doi":"10.1109/IWADS.2000.880885","DOIUrl":"https://doi.org/10.1109/IWADS.2000.880885","url":null,"abstract":"As a breakthrough over conventional systems a new kind of computer control system model, the autonomous decentralized system (ADS) is proposed. ADS makes the on-line expansion fault-tolerance and on-line maintenance of the system possible. In addition, a new kind of industrial control system, the fieldbus control system (FCS) arises, which introduces the concept of communication and management in the network into the industrial control field. DeviceNet based on CAN (controller area network) was raised as one of the fieldbuses in 1998, which makes the system's integration easier and enhances the system's interoperability. In the paper, the applications of some ideas of ADS in DeviceNet are discussed and some comparisons between ADS and DeviceNet are presented.","PeriodicalId":248775,"journal":{"name":"Proceedings 2000 International Workshop on Autonomous Decentralized System (Cat. No.00EX449)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116946578","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 : 2000-09-21DOI: 10.1109/IWADS.2000.880876
Lu Ning, You Jin-yuan
Mobile agents systems accomplish some set of tasks or achieve some set of goals through groups of cooperative agents. This paper is trying to formalize a cooperative autonomous mobile agents system and capture the dynamic character of agent group. We use distributed join-calculus as our basic framework and make the extension with a definition for teams. The chemical semantics is given. We also present an example to illustrate how to express team actions with the new constructs.
{"title":"A distributed CHAM for cooperative mobile agents","authors":"Lu Ning, You Jin-yuan","doi":"10.1109/IWADS.2000.880876","DOIUrl":"https://doi.org/10.1109/IWADS.2000.880876","url":null,"abstract":"Mobile agents systems accomplish some set of tasks or achieve some set of goals through groups of cooperative agents. This paper is trying to formalize a cooperative autonomous mobile agents system and capture the dynamic character of agent group. We use distributed join-calculus as our basic framework and make the extension with a definition for teams. The chemical semantics is given. We also present an example to illustrate how to express team actions with the new constructs.","PeriodicalId":248775,"journal":{"name":"Proceedings 2000 International Workshop on Autonomous Decentralized System (Cat. No.00EX449)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128540757","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 : 2000-09-21DOI: 10.1109/IWADS.2000.880912
J. Weidong, Zhao Duo, Li Gang
The paper presents a new approach, which uses multi-criterion satisfactory optimization (MCSO) in digital filter design. We use the frequency-sampling method in finite impulse response (FIR) digital filter design, and use multi-criterion satisfactory optimization to optimize the unspecified frequency samples occurring in the transition bands. The results show that our method is useful for FIR digital filter design.
{"title":"The application of multi-criterion satisfactory optimization in FIR digital filter design","authors":"J. Weidong, Zhao Duo, Li Gang","doi":"10.1109/IWADS.2000.880912","DOIUrl":"https://doi.org/10.1109/IWADS.2000.880912","url":null,"abstract":"The paper presents a new approach, which uses multi-criterion satisfactory optimization (MCSO) in digital filter design. We use the frequency-sampling method in finite impulse response (FIR) digital filter design, and use multi-criterion satisfactory optimization to optimize the unspecified frequency samples occurring in the transition bands. The results show that our method is useful for FIR digital filter design.","PeriodicalId":248775,"journal":{"name":"Proceedings 2000 International Workshop on Autonomous Decentralized System (Cat. No.00EX449)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128654862","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 : 2000-09-21DOI: 10.1109/IWADS.2000.880906
Zhou Chunguang, Liang Yanchun, Yang Zhimin
An improved fuzzy weighted reasoning method is presented on the basis of the 'Mamdani' reasoning method. A fuzzy neural network is developed based on the improved fuzzy weighted reasoning method. The training of network weights and optimization of membership functions are conducted using genetic algorithms. Fuzzy rules can be obtained according to the weights of the network. The effectiveness of the network model and the algorithm is examined by simulated experiments.
{"title":"A fuzzy neural network based on fuzzy weighted reasoning method","authors":"Zhou Chunguang, Liang Yanchun, Yang Zhimin","doi":"10.1109/IWADS.2000.880906","DOIUrl":"https://doi.org/10.1109/IWADS.2000.880906","url":null,"abstract":"An improved fuzzy weighted reasoning method is presented on the basis of the 'Mamdani' reasoning method. A fuzzy neural network is developed based on the improved fuzzy weighted reasoning method. The training of network weights and optimization of membership functions are conducted using genetic algorithms. Fuzzy rules can be obtained according to the weights of the network. The effectiveness of the network model and the algorithm is examined by simulated experiments.","PeriodicalId":248775,"journal":{"name":"Proceedings 2000 International Workshop on Autonomous Decentralized System (Cat. No.00EX449)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127555066","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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