{"title":"A hybrid systems theory framework for the design of a control architecture for multiple autonomous underwater vehicles","authors":"J. Borges de Sousa, F. Pereira","doi":"10.1109/ISIE.1997.649092","DOIUrl":"https://doi.org/10.1109/ISIE.1997.649092","url":null,"abstract":"This paper describes the modeling, design and implementation of the generalized vehicle (GV) architecture for the coordinated control of multiple autonomous underwater vehicles in the framework of the hybrid systems theory. A generalized vehicle is a group of vehicles whose spatial and logic organization is controlled in such a way that the group behaves as a single entity. The hybrid systems formalism provides the most adequate framework for incorporating the discrete event and continuous dynamics that arise in the concurrent coordinated operation of multiple vehicles and fully encompasses the modeling, analysis, design and implementation cycle of the GV architecture. A micro-simulation environment of the coordinated operation of multiple AUVs was developed in SHIFT, a new specification language for describing networks of hybrid automata. The DIADEM software environment for implementing on-line, real-time automated management and control systems, is discussed in the context of the implementation of the GV concept.","PeriodicalId":134474,"journal":{"name":"ISIE '97 Proceeding of the IEEE International Symposium on Industrial Electronics","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123670448","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}
G. Escobar, R. Ortega, H. Sira-Ramírez, J. Vilain, I. Zein
{"title":"An experimental comparison of several non linear controllers for power converters","authors":"G. Escobar, R. Ortega, H. Sira-Ramírez, J. Vilain, I. Zein","doi":"10.1109/ISIE.1997.651741","DOIUrl":"https://doi.org/10.1109/ISIE.1997.651741","url":null,"abstract":"In this paper, the authors present an experimental comparative study of five controllers for boost DC-to-DC power converters recently reported in the control literature. They all enjoy some provable stability properties, which are briefly recalled in the paper. To carry out these experiments, the authors constructed a low cost electronic card, which captures the essential features of a commercial product, but with all the sensors required to monitor the behaviour of the system. The algorithms are compared with respect to ease of implementation, in particular their sensitivity to the tuning parameters, and closed-loop performance. The latter is evaluated with the standard criteria of steady-state and transient behaviour, and disturbance attenuation. Motivated by the experimental evidence, they propose several modifications to the basic schemes, for some of them they establish some new theoretical results.","PeriodicalId":134474,"journal":{"name":"ISIE '97 Proceeding of the IEEE International Symposium on Industrial Electronics","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114019396","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}
{"title":"Cooperation in human-robot-teams","authors":"T. Laengle, T. Hoeniger, L. Zhu","doi":"10.1109/ISIE.1997.648935","DOIUrl":"https://doi.org/10.1109/ISIE.1997.648935","url":null,"abstract":"The concept of a human-robot-team is presented. Because of its high flexibility and adaptability, the human-robot cooperation is expected to have a wide range of applications in uncertain environments not only in future construction and manufacturing industries but also for services. A Multi-agent control architecture gives an appropriate frame for the flexibility of the human-robot-team. Robots are considered as intelligent autonomous assistants of humans, which can mutually interact on a symbolic level and a physical level. This interaction is achieved with the communication between human and robots, the interpretation of the transmitted information, the coordination of the activities and the cooperation between independent agents. Equipped with some sensing modalities for the perception of the environment, the two-arm Karlsruhe Autonomous Mobile Robot (KAMRO) is introduced to demonstrate the principles of the cooperation among human and robot agents. Finally, guidelines are given for future studies on human-robot-cooperation.","PeriodicalId":134474,"journal":{"name":"ISIE '97 Proceeding of the IEEE International Symposium on Industrial Electronics","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126465470","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}
{"title":"A control system using ASICs technology for industrial environments","authors":"S. Felici, J. Pérez, S. Peláez, J. Insenser","doi":"10.1109/ISIE.1997.651795","DOIUrl":"https://doi.org/10.1109/ISIE.1997.651795","url":null,"abstract":"One of the most important aspects in the industrial world today, is distributed control and a certain hierarchical platform which could solve and manage this kind of industrial installation. In this article we pretend to show a developed system for a private company with a custom protocol and communication system but for industrial reasons this application is kept confidential. For this control system two different application specific integrated circuits (ASICs) have been developed, that have been partially supported by GAME. We describe the design methodology (synthesis, high-level design and macrocell integration) based on the hardware description language Verilog, and the communication protocol for this application. We put special attention on the communication module and the CRC circuit and the advantages that this technology, ASICs, provides to this kind of environment. This system has been developed and designed by SIDSA and the University of Valencia. This article introduces the system design and implementation, and it doesn't point to any particular application or installation. The system developed could be adapted to any industrial environment with just programming the central unit, based on 8051 microcontroller for any control application using its hard time protocol mechanism with cyclic redundant check for communication error detection.","PeriodicalId":134474,"journal":{"name":"ISIE '97 Proceeding of the IEEE International Symposium on Industrial Electronics","volume":"2003 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125786683","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}
{"title":"Visual attention in a mobile robot","authors":"C. Scheier, S. Egner","doi":"10.1109/ISIE.1997.651734","DOIUrl":"https://doi.org/10.1109/ISIE.1997.651734","url":null,"abstract":"An agent performing a task in an environment must be able to selectively attend to visual stimuli. This ability is of critical importance for adaptive behavior in (vision-based) biological and artificial agents. In this paper we present a connectionist model of how visual attention can serve an agent to perform its task. The model is embedded in a mobile robot. Visual stimuli are segregated by means of synchronization of spiking neurons. They then enter a selection process, the result of which determines what region of the visual field the robot will attend and consequently react to. Results from the behavior of the robot as well as the underlying neuronal dynamics are presented, and limitations as well as future extensions of the model are discussed.","PeriodicalId":134474,"journal":{"name":"ISIE '97 Proceeding of the IEEE International Symposium on Industrial Electronics","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115883885","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}
K. Schilling, M. M. Arteche, Juan Garbajosa, R. Mayerhofer
{"title":"Design of flexible autonomous transport robots for industrial production","authors":"K. Schilling, M. M. Arteche, Juan Garbajosa, R. Mayerhofer","doi":"10.1109/ISIE.1997.648640","DOIUrl":"https://doi.org/10.1109/ISIE.1997.648640","url":null,"abstract":"Autonomously guided vehicles (AGVs) are a key element to perform flexible transport tasks in industrial production. At present AGVs, usually guided via induction wires laid in the floor, are widely used for material transport. The ESPRIT-project RETRARO addresses, in an trial application, advanced data processing techniques to develop a free navigation capability for the AGV in order to achieve a higher operational flexibility. On basis of the REAKT real-time expert system and a low cost range detection system using sensor data fusion, the following functionalities are provided: algorithms for efficient path planning and health monitoring; economic sensor systems to provide navigation and obstacle avoidance functions; and the combination of free navigation capabilities with an existing wire-guided AGV system. There results a flexible transport system, able to adapt to changing production configurations. This paper provides details of this approach and reports on the trial implementation in a spinning mill.","PeriodicalId":134474,"journal":{"name":"ISIE '97 Proceeding of the IEEE International Symposium on Industrial Electronics","volume":"240 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115950012","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}
{"title":"A system for digital mock-up's and virtual prototype design in industry: 'the Virtual Workbench'","authors":"P. Drews, M. Weyrich","doi":"10.1109/ISIE.1997.648933","DOIUrl":"https://doi.org/10.1109/ISIE.1997.648933","url":null,"abstract":"In this paper, the authors present the \"Virtual Workbench\" and discuss its application to industrial engineering. The Virtual Workbench is a design table under which a stereoscopic image is projected. The method of virtual holography is used to generate visual feedback. The user can grasp and manipulate objects with a data glove and 6-D pointing pen within the scene. The overall system is fully interactive and provides a multi-modal man-machine interface. The system is designed to prepare and evaluate digital mock-ups of industrial machinery. The authors' goal is to provide an environment which is suitable to evaluate a virtual prototype before a commitment is made to its physical construction. Their system can be used to verify and analyse a complex construction in virtual space before the real prototype is built. By means of a digital mock-up, production costs can be decreased due to the fact that inadequacies of the overall prototype system can be analysed during the design stage. The Virtual Workbench environment entails functions to handle virtual objects such as place and staple them. There are also utilities provided to navigate through virtual space. Special modules enable the functional simulation of simple constrains and complex kinematics such as robotics systems and allow animation of sequences.","PeriodicalId":134474,"journal":{"name":"ISIE '97 Proceeding of the IEEE International Symposium on Industrial Electronics","volume":"313 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130119661","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}
A. Nava-Segura, R.S. Jose-Iglesias, P. Bañuelos-Sánchez, J. Nuñez-Perez
{"title":"Experimental performance of passive and hybrid filters applied to AC/DC converters fed by a weak AC system","authors":"A. Nava-Segura, R.S. Jose-Iglesias, P. Bañuelos-Sánchez, J. Nuñez-Perez","doi":"10.1109/ISIE.1997.649030","DOIUrl":"https://doi.org/10.1109/ISIE.1997.649030","url":null,"abstract":"This paper deals with an experimental comparative analysis of the filtering and power factor correcting capabilities of a passive filter versus a hybrid filter, when each one of them is separately connected to a weak AC system feeding an AC/DC three-phase power converter load. Two physical models, that represent respectively a passive and a hybrid filter, were constructed and tested for a variety of operating firing angle control modes of the AC/DC converter. The passive filter was designed to cope with the inherent characteristic harmonic currents of the rectangular waveshaped AC current. The hybrid filter (a combination of an active filter and a passive coupling branch) was designed so that the active filter injects the right amount of counterharmonic current into the AC mains via the passive coupling branch. The AC system was deliberately weakened by inserting an inductance between the AC source and the AC/DC power converter, as the goal of the research was to test the filtering performance of each model under conditions of highly distorted AC voltage and current waveforms. By recording experimental voltage and current data, in both the time and in the frequency domains, a comparative performance of the filters was made. The paper includes a selected number of experimental results to compare the performance of the filtering systems. These results demonstrate that, with some differences, the constructed filtering models reduce conveniently the total harmonic content and improve the power factor of the AC voltage and current waveforms.","PeriodicalId":134474,"journal":{"name":"ISIE '97 Proceeding of the IEEE International Symposium on Industrial Electronics","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133948071","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}
{"title":"Learning, adaptation and evolution for intelligent system","authors":"T. Fukuda","doi":"10.1109/ISIE.1997.651718","DOIUrl":"https://doi.org/10.1109/ISIE.1997.651718","url":null,"abstract":"There are many growing demands for making systems intelligent, by which people can cope with the system complexities and software development. The intelligent system must have the capabilities, in principle, for learning, adaptation and evolution, so that the system can adapt to the change of environments, tasks, and systems themselves. This paper provides the foundation and methodologies for the learning, adaptation and evolution, by neural network, fuzzy system and genetic algorithm. Those methods can be applied for various optimization of design, and scheduling problems in automation systems.","PeriodicalId":134474,"journal":{"name":"ISIE '97 Proceeding of the IEEE International Symposium on Industrial Electronics","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131792461","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}
M. Gonzalez, M. Pérez, J. Díaz, J. Campo, S. Horta
{"title":"New intelligent Ni-Cd and Ni-MH battery fast-charger","authors":"M. Gonzalez, M. Pérez, J. Díaz, J. Campo, S. Horta","doi":"10.1109/ISIE.1997.649001","DOIUrl":"https://doi.org/10.1109/ISIE.1997.649001","url":null,"abstract":"This paper presents the implementation of an optimized fast-charge method for portable Ni-Cd and Ni-MH batteries. This method allows problems related to fast-charging to be overcome. In order to facilitate the implementation of a charge system a new battery management IC has been developed. This IC monitors the battery's main parameters and controls the complete charge process by driving charging/discharging power stage switches. The IC requires few peripheral components. In this way, an efficient and economic battery fast-charger is obtained.","PeriodicalId":134474,"journal":{"name":"ISIE '97 Proceeding of the IEEE International Symposium on Industrial Electronics","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130698507","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}