{"title":"The alignment angle approach to inherent design limitations","authors":"V. Toochinda","doi":"10.1109/ICIT.2002.1189292","DOIUrl":"https://doi.org/10.1109/ICIT.2002.1189292","url":null,"abstract":"Inherent design limitations involves a study of system properties and characteristics that is used to assess the potential difficulty of a feedback control design. Such knowledge is useful in the early stage of engineering design cycle, in order to configure the plant and sensor/actuator locations. This paper suggests an approach on design limitations by observing the alignment between plant and disturbance subspaces. We illustrate via an active noise control example that plant-disturbance misalignment causes undesirable closed-loop behaviors such as poor stability margins or amplification at the measurement output. We also show that some choice of sensor/actuator placement, called the \"symmetric configuration,\" is prone to plant-disturbance misalignment.","PeriodicalId":344984,"journal":{"name":"2002 IEEE International Conference on Industrial Technology, 2002. IEEE ICIT '02.","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126700783","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. Zlokolica, W. Wisutmethangoon, P. Ngamsritragul, B. Sovilj
{"title":"Kinematics behaviour of complex mechanisms with triads as a part of mechatronics system","authors":"M. Zlokolica, W. Wisutmethangoon, P. Ngamsritragul, B. Sovilj","doi":"10.1109/ICIT.2002.1189944","DOIUrl":"https://doi.org/10.1109/ICIT.2002.1189944","url":null,"abstract":"Kinematic group of third class can not be described in a standard way. This kinematic group can be brought down to several general cases. Each case is specific. Their application is met in many complex mechanisms as part of mechatronics system. For kinematical analysis several numerical and graphical methods are used. In this paper the method of fixed point for kinematical description of third class type RR-RT-TR will be used. This method differs from all the rest used up to now and can be done numerically by using computer or graphically. The basic idea of this method is decomposing the kinematic group of third class to the kinematic groups of second class. Then the Banach's principle of contraction is used. It belongs to a class of theorems of fixed point. The method is very efficient and gives very quick and accurate solutions concerning the position of complex mechanisms as a part of the mechatronics system, well as the velocities and accelerations too.","PeriodicalId":344984,"journal":{"name":"2002 IEEE International Conference on Industrial Technology, 2002. IEEE ICIT '02.","volume":"105 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124051571","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}
D. Puangdownreong, Kongpan Areerak, A. Srikaew, S. Sujitjorn, P. Totarong
{"title":"System identification via Adaptive Tabu Search","authors":"D. Puangdownreong, Kongpan Areerak, A. Srikaew, S. Sujitjorn, P. Totarong","doi":"10.1109/ICIT.2002.1189290","DOIUrl":"https://doi.org/10.1109/ICIT.2002.1189290","url":null,"abstract":"This article presents a novel Adaptive Tabu Search (ATS) method. Our additional back-tracking and adaptive search radius mechanisms enhance the conventional Tabu Search (TS) method to achieve faster and more efficient search. The main application of the ATS method discussed in this article is identification of system models. Examples cover hot-air tube, system with torsional resonance, static nonlinearity and inverted pendulum.","PeriodicalId":344984,"journal":{"name":"2002 IEEE International Conference on Industrial Technology, 2002. IEEE ICIT '02.","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126410826","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":"Classifying address components of Thai mail by natural language processing","authors":"P. Chaiyaput, P. Kumhom, K. Chammongthai","doi":"10.1109/ICIT.2002.1189366","DOIUrl":"https://doi.org/10.1109/ICIT.2002.1189366","url":null,"abstract":"Since the writing format of Thai postal address is not fixed, it is difficult to classify the address components. This paper proposes a method to classify address components by using natural language processing (NLP) in order to absorb the nonfixed writing format and a little misspelling. This method finds the zip code and house number and uses them to extract only the address components from the overall destination address block. Secondly, we find the prefix of province that is the largest area component in the address. The province name following the searched prefix is a key to classify the smaller districts such as district and locality by matching in database. In case of a little misspelling, the most similar district in the matched province domain is selected as candidate, and the thresholding determines the district. In experiments, we utilized 500 address samples. The results show 86% accuracy.","PeriodicalId":344984,"journal":{"name":"2002 IEEE International Conference on Industrial Technology, 2002. IEEE ICIT '02.","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132405756","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":"Assembly constraint solver based on point-cluster reduction","authors":"Liwen Xiao, Pengfei Qin, Yuan-jun He, D. Jiang","doi":"10.1109/ICIT.2002.1189879","DOIUrl":"https://doi.org/10.1109/ICIT.2002.1189879","url":null,"abstract":"In recent years constraint-based modeling has become an important topic in the new generation CAD system. In this paper, an algorithm based on point-cluster reduction for assembly constraint satisfaction problem is presented. The algorithm combines graph-based with rule-based approaches and solves the assembly constraint satisfaction problem efficiently. Firstly, The simplified model of geometric constraint system is established and the graph representation of this model is proposed. Then the geometric reasoning algorithm based on point-cluster reduction is discussed in detail and the global constraint algorithm is presented based on the reduction algorithm Finally, the prototype of an assembly constraint solver is implemented using the object-oriented method. It is designed to be an important subsystem of a professional CAD system.","PeriodicalId":344984,"journal":{"name":"2002 IEEE International Conference on Industrial Technology, 2002. IEEE ICIT '02.","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116662444","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":"Real time trajectory generation for vehicle position control","authors":"C. Ferraresi, G. Quaglia, G. Gherlone","doi":"10.1109/ICIT.2002.1189885","DOIUrl":"https://doi.org/10.1109/ICIT.2002.1189885","url":null,"abstract":"The object of this work is the definition of a general algorithm for the automatic generation of path aimed at control in real-time the motion of a wheeled vehicle, in order to reach a defined position target. The algorithm, initially conceived for the automatic control of a wheeled articulated robot for geophysical survey, was subsequently extended and generalized, so yielding a tool that may be effectively used for the real-time path planning of vehicles with different kinematic structure and way of steering. The real-time generation of the trajectory provided by this algorithm can lead to the realization of a very robust automatic drive control, able to compensate disturbance-induced errors during the trajectory performance, as well as to adapt itself to a sudden change of the target. The paper shows in detail the logic used by the algorithm to generate the trajectory and describes some significant examples.","PeriodicalId":344984,"journal":{"name":"2002 IEEE International Conference on Industrial Technology, 2002. IEEE ICIT '02.","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132455611","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}
Worapat Nukulwuthiopas, D. Laowattana, Tawida Maneewarn
{"title":"Dynamic modeling of a one-wheel robot by using Kane's method","authors":"Worapat Nukulwuthiopas, D. Laowattana, Tawida Maneewarn","doi":"10.1109/ICIT.2002.1189952","DOIUrl":"https://doi.org/10.1109/ICIT.2002.1189952","url":null,"abstract":"In this paper, dynamic modeling of a one-wheel robot, which is subjected to nonholonomic constraints, was derived by using Kane's method. By imposing the constraints in the dynamic equations leads to system order reduction. This method can be applied without using Lagrange multipliers. So the computation complexity is reduced. The motion of the one-wheel robot integrated with a gyroscope for stabilization and steering was described. Numerical simulations are presented to verify validity of the model in agreement with the Lagrange's formulation found in early works by other researchers.","PeriodicalId":344984,"journal":{"name":"2002 IEEE International Conference on Industrial Technology, 2002. IEEE ICIT '02.","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132528972","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 novel fluid haptic interface","authors":"W. Wannasuphoprasit, S. Chanphat","doi":"10.1109/ICIT.2002.1189922","DOIUrl":"https://doi.org/10.1109/ICIT.2002.1189922","url":null,"abstract":"This paper purposed a novel method for developing a Haptic Interface based on a fluid system. This haptic device uses fluid flow dividers to control velocity relations between its generalized coordinates. Since, there is no power add to the system, the novel fluid haptic interface is intrinsically passive and thus safe to directly interact with human operator. We designed and developed a planar fluid haptic interface prototype. In addition, we reviewed characteristics of valve, cylinder and nonlinearity of air. The simulations of the device also included.","PeriodicalId":344984,"journal":{"name":"2002 IEEE International Conference on Industrial Technology, 2002. IEEE ICIT '02.","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132893481","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":"Computer based robot training in a virtual environment","authors":"A. Sett, K. Vollmann","doi":"10.1109/ICIT.2002.1189341","DOIUrl":"https://doi.org/10.1109/ICIT.2002.1189341","url":null,"abstract":"As more market segments are welcoming automation, the robotic field continues to expand. With the accepted breadth of viable industrial robotic applications increasing, the need for flexible robotic training also grows. In the area of simulation and offline programming there have been innovative developments to Computer Aided Robotics (CAR) Systems. New and notable releases have been introduced to the public, especially among the small, affordable, and easy to use systems. These CAR-Systems are mainly aimed at system integrators in general industry business fields to whom the complex, powerful software tools used by the automotive industry (and its suppliers) are oversized. In general, CAR-Systems are used to design robot cells and to create the offline programs necessary to reduce start-up time and to achieve a considerable degree of planning reliability. Another potential yet to be fully considered, is the use of such CAR-Systems as an inexpensive and user-friendly tool for robotics training. This paper will show the educational potential and possibility inherent in simulation and introduce a successful example of this new method of training. Finally, this presentation should be seen as an attempt to outline novel methods for future education in an industrial environment characterized by the increased occurrence and implementation of the virtual factory.","PeriodicalId":344984,"journal":{"name":"2002 IEEE International Conference on Industrial Technology, 2002. IEEE ICIT '02.","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128308247","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":"Finding and sharing common actions for distributed agents' collaboration","authors":"K. Iwata, N. Ito, N. Ishii","doi":"10.1109/ICIT.2002.1189355","DOIUrl":"https://doi.org/10.1109/ICIT.2002.1189355","url":null,"abstract":"This paper develops the description for agents to collaborate each other by sharing common actions and the way to find such common actions by distributed agents. Agents can collaborate each other and reduce useless actions by sharing common actions among their actions, but it is hard to find the common actions among their actions. Hence, we develop a description to find common actions among agents. We define the processes to find common actions based on /spl pi/-calculus. In the description, actions are described as the parallel processes through networks and resulted in the sets. The sets are the target sets including the intersection of some sets. Some sets have common actions and the others have uncommon actions by excluding common actions. Each agent will perform his own uncommon actions, which exclude common actions, and the part of the common actions. Moreover, we explain the descriptions to distribute actions among agents. They are constructed by the independent processes in /spl pi/-calculus. Thus, the leader of a group, who uses the descriptions, distributes actions among agents in parallel. Finally, we show the operational semantics of the descriptions.","PeriodicalId":344984,"journal":{"name":"2002 IEEE International Conference on Industrial Technology, 2002. IEEE ICIT '02.","volume":"102 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122948032","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}