Pub Date : 2015-09-11DOI: 10.7305/AUTOMATIKA.2015.10.1057
Maja M. Lutovac Banduka
Robot control systems are usually complex systems whose users must be well trained to use them. Also, control process is mainly carried out near the robot or by using wired connections. There is a need for a solution that can provide convenient and intuitive robot control with user’s location independence, easy adjustment and simultaneously monitoring of robot motion tasks. Android devices are powerful mobile devices with open architecture and permanently Internet connection that can be applied to resolving those issues. This paper presents a system for remote monitoring and control of industrial robots based on Android device and Wi-Fi communication which provides intuitive robot control at a great distance with simultaneously monitoring of robot motions by observing its 3D model movement or trajectory path. Simple definition of new motion tasks and their redefinition is provided through the so called “speed dial” mode and manual robot guiding is provided through the manual control mode. Proposed solution simplifies an interaction between the human and the industrial robot in the case of robot motion control and tracking at remote location.
{"title":"Remote Monitoring and Control of Industrial Robot based on Android Device and Wi-Fi Communication","authors":"Maja M. Lutovac Banduka","doi":"10.7305/AUTOMATIKA.2015.10.1057","DOIUrl":"https://doi.org/10.7305/AUTOMATIKA.2015.10.1057","url":null,"abstract":"Robot control systems are usually complex systems whose users must be well trained to use them. Also, control process is mainly carried out near the robot or by using wired connections. There is a need for a solution that can provide convenient and intuitive robot control with user’s location independence, easy adjustment and simultaneously monitoring of robot motion tasks. Android devices are powerful mobile devices with open architecture and permanently Internet connection that can be applied to resolving those issues. This paper presents a system for remote monitoring and control of industrial robots based on Android device and Wi-Fi communication which provides intuitive robot control at a great distance with simultaneously monitoring of robot motions by observing its 3D model movement or trajectory path. Simple definition of new motion tasks and their redefinition is provided through the so called “speed dial” mode and manual robot guiding is provided through the manual control mode. Proposed solution simplifies an interaction between the human and the industrial robot in the case of robot motion control and tracking at remote location.","PeriodicalId":365873,"journal":{"name":"Automatika: Journal for Control, Measurement, Electronics, Computing and Communications","volume":"103 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124157935","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 : 2013-06-05DOI: 10.7305/AUTOMATIKA.55-1.184
Karol Kyslan, F. Ďurovský
Dynamic emulation of mechanical loads presents a modern and interesting approach for testing and validating performance of electrical drives without a real mechanical load included in the test rig. The paper presents an approach to dynamic emulation of mechanical loads when the load torque and inertia mass of emulated load can be significantly greater than that of laboratory test rig. Closed-loop control of load torque and feedforward compensation of inertia and friction torques are used in a test rig. The approach is focused on the use with standard industrial converters. The described method can be used for design and validation of speed control algorithms in mechatronic applications. Experimental results with the emulation of linear loads are presented in end of the paper.
{"title":"Dynamic Emulation of Mechanical Loads - An Approach Based on Industrial Drives' Features","authors":"Karol Kyslan, F. Ďurovský","doi":"10.7305/AUTOMATIKA.55-1.184","DOIUrl":"https://doi.org/10.7305/AUTOMATIKA.55-1.184","url":null,"abstract":"Dynamic emulation of mechanical loads presents a modern and interesting approach for testing and validating performance of electrical drives without a real mechanical load included in the test rig. The paper presents an approach to dynamic emulation of mechanical loads when the load torque and inertia mass of emulated load can be significantly greater than that of laboratory test rig. Closed-loop control of load torque and feedforward compensation of inertia and friction torques are used in a test rig. The approach is focused on the use with standard industrial converters. The described method can be used for design and validation of speed control algorithms in mechatronic applications. Experimental results with the emulation of linear loads are presented in end of the paper.","PeriodicalId":365873,"journal":{"name":"Automatika: Journal for Control, Measurement, Electronics, Computing and Communications","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132074285","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 : 2013-05-30DOI: 10.7305/AUTOMATIKA.55-1.380
F. Himmelstoss, S. Ryvkin
Solar photovoltaics is one of the most promising technologies for the non-carbon based electricity production. Power electronics is therefore necessary. In this paper a converter is analyzed which makes it possible to control the mean value of the output voltage, this is e.g. the voltage across a DC machine (and therefore the speed) from zero up to three times of the input voltage. The converter is also useful for charging batteries. The model of the drive, the design of the devices, the control features are discussed, feed-forward control based on solving the limit cycle is designed, some experimental results, and hints for the design are given.
{"title":"DC/DC Converter for Motor Drive - Concept, Design, and Feed-Forward Control","authors":"F. Himmelstoss, S. Ryvkin","doi":"10.7305/AUTOMATIKA.55-1.380","DOIUrl":"https://doi.org/10.7305/AUTOMATIKA.55-1.380","url":null,"abstract":"Solar photovoltaics is one of the most promising technologies for the non-carbon based electricity production. Power electronics is therefore necessary. In this paper a converter is analyzed which makes it possible to control the mean value of the output voltage, this is e.g. the voltage across a DC machine (and therefore the speed) from zero up to three times of the input voltage. The converter is also useful for charging batteries. The model of the drive, the design of the devices, the control features are discussed, feed-forward control based on solving the limit cycle is designed, some experimental results, and hints for the design are given.","PeriodicalId":365873,"journal":{"name":"Automatika: Journal for Control, Measurement, Electronics, Computing and Communications","volume":"173 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132580409","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 : 2012-02-29DOI: 10.7305/automatika.51-3.212
I. Petrovic
{"title":"Comments and Opinions","authors":"I. Petrovic","doi":"10.7305/automatika.51-3.212","DOIUrl":"https://doi.org/10.7305/automatika.51-3.212","url":null,"abstract":"","PeriodicalId":365873,"journal":{"name":"Automatika: Journal for Control, Measurement, Electronics, Computing and Communications","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-02-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127305279","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 : 2012-02-02DOI: 10.7305/AUTOMATIKA.60-1.1805
Mabrek Abdelhakim, Hemsas Kameleddine
This paper presents a new idea to establish a simplified model of the short-circuit turns (SCT), in the stator winding of the squirrel-cage induction motor (IM) using standstill frequency response test (SSFR). This method may offer more precision in parameters estimation independent of variations in motor or load operating conditions since it is at standstill test. However, high-performance field-oriented control, or diagnosis purpose of the IM requires accurate knowledge of the electrical parameters. Furthermore, we propose to model the IM by a multiple cage equivalent circuit (EC) that enables us to take into account the deep bar effect with accuracy. The specific advantage of the proposed method that we can create a true SCT at several levels using fault simulator in order to estimate the EC model parameters in each case of fault severity, with a low probability of risk to the machine being tested, and a relatively modest expense. At the first time the healthy machine is identified and experimentally validated, then the models have been successfully used to study the transient and steady-state behavior of the IM with SCT fault, which a practically oriented scientific value.
{"title":"Induction motor inter-turn fault modeling and simulation using SSFR test for diagnosis purpose","authors":"Mabrek Abdelhakim, Hemsas Kameleddine","doi":"10.7305/AUTOMATIKA.60-1.1805","DOIUrl":"https://doi.org/10.7305/AUTOMATIKA.60-1.1805","url":null,"abstract":"This paper presents a new idea to establish a simplified model of the short-circuit turns (SCT), in the stator winding of the squirrel-cage induction motor (IM) using standstill frequency response test (SSFR). This method may offer more precision in parameters estimation independent of variations in motor or load operating conditions since it is at standstill test. However, high-performance field-oriented control, or diagnosis purpose of the IM requires accurate knowledge of the electrical parameters. Furthermore, we propose to model the IM by a multiple cage equivalent circuit (EC) that enables us to take into account the deep bar effect with accuracy. The specific advantage of the proposed method that we can create a true SCT at several levels using fault simulator in order to estimate the EC model parameters in each case of fault severity, with a low probability of risk to the machine being tested, and a relatively modest expense. At the first time the healthy machine is identified and experimentally validated, then the models have been successfully used to study the transient and steady-state behavior of the IM with SCT fault, which a practically oriented scientific value.","PeriodicalId":365873,"journal":{"name":"Automatika: Journal for Control, Measurement, Electronics, Computing and Communications","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129361832","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 : 2011-08-03DOI: 10.7305/AUTOMATIKA.51-4.52
Z. Benčić
{"title":"Comments and Opinions","authors":"Z. Benčić","doi":"10.7305/AUTOMATIKA.51-4.52","DOIUrl":"https://doi.org/10.7305/AUTOMATIKA.51-4.52","url":null,"abstract":"","PeriodicalId":365873,"journal":{"name":"Automatika: Journal for Control, Measurement, Electronics, Computing and Communications","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125961929","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 : 1900-01-01DOI: 10.1007/978-3-540-73044-6_13
S. Sovilj, G. Rajsman, R. Magjarevic
{"title":"Classification Methods for Atrial Fibrillation Prediction after CABG","authors":"S. Sovilj, G. Rajsman, R. Magjarevic","doi":"10.1007/978-3-540-73044-6_13","DOIUrl":"https://doi.org/10.1007/978-3-540-73044-6_13","url":null,"abstract":"","PeriodicalId":365873,"journal":{"name":"Automatika: Journal for Control, Measurement, Electronics, Computing and Communications","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134017345","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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