Pub Date : 2014-05-22DOI: 10.1109/AQTR.2014.6857854
Adrian Colesa, Tudor Bura, Adrian Pop, Sándor Lukács
We propose a method to rapidly launch new virtual machines (VM), starting from a prepared copy-on-write (COW) snapshot image. W e use RAM-disks instead of stored ones and apply the COW technique on them, also. A VM can extend its RAM-disk on non-volatile storage area when it grows over an established threshold, just to avoid overloading the RAM. Our solution is appropriate in situations like testing environments with short-living VMs, where the VM persistence is not a requirement, b u t one just needs to start very fast new running VMs in a known safe state. W e implemented our solution in QEMU/KVM. The performance tests showed an improvement in the total VM's creation and running time of about 15% over the basic HDD-based method.
{"title":"Fast creation of short-living virtual machines using copy-on-write RAM-disks","authors":"Adrian Colesa, Tudor Bura, Adrian Pop, Sándor Lukács","doi":"10.1109/AQTR.2014.6857854","DOIUrl":"https://doi.org/10.1109/AQTR.2014.6857854","url":null,"abstract":"We propose a method to rapidly launch new virtual machines (VM), starting from a prepared copy-on-write (COW) snapshot image. W e use RAM-disks instead of stored ones and apply the COW technique on them, also. A VM can extend its RAM-disk on non-volatile storage area when it grows over an established threshold, just to avoid overloading the RAM. Our solution is appropriate in situations like testing environments with short-living VMs, where the VM persistence is not a requirement, b u t one just needs to start very fast new running VMs in a known safe state. W e implemented our solution in QEMU/KVM. The performance tests showed an improvement in the total VM's creation and running time of about 15% over the basic HDD-based method.","PeriodicalId":297141,"journal":{"name":"2014 IEEE International Conference on Automation, Quality and Testing, Robotics","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127734250","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 : 2014-05-22DOI: 10.1109/AQTR.2014.6857827
I. Clitan, I. Muntean
The robotic arm presented in this paper is part of an unloading machine used in the process of hot rolling to extract the heated billets from inside the rotary hearth furnace. The robotic arm positioning is hydraulically driven due to higher speed response. For the horizontal positioning of the arm a control structure is needed since the displacement of a billet is constantly changing. It is intended by means of this paper to obtain a control structure using the internal model control method that improves the performances of the current control systems that are mostly tuned based on rich experience. The results assessment is done by means of simulation and the obtained controllers are compared on the basis of overall performances.
{"title":"Internal model control for a hydraulically driven robotic arm","authors":"I. Clitan, I. Muntean","doi":"10.1109/AQTR.2014.6857827","DOIUrl":"https://doi.org/10.1109/AQTR.2014.6857827","url":null,"abstract":"The robotic arm presented in this paper is part of an unloading machine used in the process of hot rolling to extract the heated billets from inside the rotary hearth furnace. The robotic arm positioning is hydraulically driven due to higher speed response. For the horizontal positioning of the arm a control structure is needed since the displacement of a billet is constantly changing. It is intended by means of this paper to obtain a control structure using the internal model control method that improves the performances of the current control systems that are mostly tuned based on rich experience. The results assessment is done by means of simulation and the obtained controllers are compared on the basis of overall performances.","PeriodicalId":297141,"journal":{"name":"2014 IEEE International Conference on Automation, Quality and Testing, Robotics","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129113525","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 : 2014-05-22DOI: 10.1109/AQTR.2014.6857901
A. Burlacu, M. Kloetzer, F. Ostafi
This research targets the problem of automatically planning a team of mobile agents such that they collect the samples scattered throughout an environment in minimum time. Each mobile agent can carry at most one sample at a time and it can travel a maximum total distance, given by agent's available energy. The environment is assumed already abstracted to a finite graph, where a node plays the role of the deposit where the samples should be gathered. Our solution consists in several steps that lead to a formulation of the initial problem as a Mixed Integer Linear Programming one. The solution yields a plan that imposes for each agent the samples and the order for collecting them. This result is optimal from the point of view of collecting all samples in minimum time.
{"title":"Optimal multi-agent planning solution for a sample gathering problem","authors":"A. Burlacu, M. Kloetzer, F. Ostafi","doi":"10.1109/AQTR.2014.6857901","DOIUrl":"https://doi.org/10.1109/AQTR.2014.6857901","url":null,"abstract":"This research targets the problem of automatically planning a team of mobile agents such that they collect the samples scattered throughout an environment in minimum time. Each mobile agent can carry at most one sample at a time and it can travel a maximum total distance, given by agent's available energy. The environment is assumed already abstracted to a finite graph, where a node plays the role of the deposit where the samples should be gathered. Our solution consists in several steps that lead to a formulation of the initial problem as a Mixed Integer Linear Programming one. The solution yields a plan that imposes for each agent the samples and the order for collecting them. This result is optimal from the point of view of collecting all samples in minimum time.","PeriodicalId":297141,"journal":{"name":"2014 IEEE International Conference on Automation, Quality and Testing, Robotics","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132353885","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 : 2014-05-22DOI: 10.1109/AQTR.2014.6857868
O. Elshazly, Z. Zyada, A. Abo-Ismail
In this paper, the kinematics of a skid steering mobile robot is controlled using a nonlinear controller augmented with a genetic algorithm which is used to tune the controller parameters. The controller is simple in terms of design and implementation. Moreover, it maintains good performance and has stronger robustness. Furthermore, the proposed controller is used to control an extended kinematics model taking into account slip effects to test the validity and enhancement of the controller. Simulation results are included.
{"title":"Genetic nonlinear controller of a skid steering mobile robot with slip conditions","authors":"O. Elshazly, Z. Zyada, A. Abo-Ismail","doi":"10.1109/AQTR.2014.6857868","DOIUrl":"https://doi.org/10.1109/AQTR.2014.6857868","url":null,"abstract":"In this paper, the kinematics of a skid steering mobile robot is controlled using a nonlinear controller augmented with a genetic algorithm which is used to tune the controller parameters. The controller is simple in terms of design and implementation. Moreover, it maintains good performance and has stronger robustness. Furthermore, the proposed controller is used to control an extended kinematics model taking into account slip effects to test the validity and enhancement of the controller. Simulation results are included.","PeriodicalId":297141,"journal":{"name":"2014 IEEE International Conference on Automation, Quality and Testing, Robotics","volume":"93 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131880091","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 : 2014-05-22DOI: 10.1109/AQTR.2014.6857860
M. Gretinger, M. Secara, C. Festila, E. Dulf
Several techniques to generate the chirp signal have been proposed over the past few decades. Generally, the techniques can be categorized into analog approach and digital approach. In analog chirp generator usually a voltage controlled oscillator is used to generate the chirp signal. However, due to several limitations of this oscillator the digital approach has slowly takes the role as the chirp generator, although are more complex and hard to realize. This work proposes an easy to use analog alternative for chirp signal generator, which counteracts the claimed disadvantages. The paper presents the principle of the proposed generator, the simulation scheme with the simulation results and an experimental result, highlighting the advantages of the method.
{"title":"“Chirp” signal generators for frequency response experiments","authors":"M. Gretinger, M. Secara, C. Festila, E. Dulf","doi":"10.1109/AQTR.2014.6857860","DOIUrl":"https://doi.org/10.1109/AQTR.2014.6857860","url":null,"abstract":"Several techniques to generate the chirp signal have been proposed over the past few decades. Generally, the techniques can be categorized into analog approach and digital approach. In analog chirp generator usually a voltage controlled oscillator is used to generate the chirp signal. However, due to several limitations of this oscillator the digital approach has slowly takes the role as the chirp generator, although are more complex and hard to realize. This work proposes an easy to use analog alternative for chirp signal generator, which counteracts the claimed disadvantages. The paper presents the principle of the proposed generator, the simulation scheme with the simulation results and an experimental result, highlighting the advantages of the method.","PeriodicalId":297141,"journal":{"name":"2014 IEEE International Conference on Automation, Quality and Testing, Robotics","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134038729","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 : 2014-05-22DOI: 10.1109/AQTR.2014.6857883
M. Truşcă, S. Albert, M. Soran, M. Abrudean
It is necessary to maintain the constant temperature around 20 Celsius degree with a maximum deviation of 4 Celsius degree in Datacenter to work in the best condition. In this aim, two software were developed in INCDTIM for control and monitoring the important environmental parameters. These applications directly communicate with an equipment hardware that consists from an electronic board called "AVR_NET_IO" with its own firmware using a microcontroller ATmega32 type. Using these control system it is possible to monitor the temperature variation in Datacenter, the active power on a long period and it will be possible to reduce the energy consumption.
{"title":"Environmental parameters control in Datacenter","authors":"M. Truşcă, S. Albert, M. Soran, M. Abrudean","doi":"10.1109/AQTR.2014.6857883","DOIUrl":"https://doi.org/10.1109/AQTR.2014.6857883","url":null,"abstract":"It is necessary to maintain the constant temperature around 20 Celsius degree with a maximum deviation of 4 Celsius degree in Datacenter to work in the best condition. In this aim, two software were developed in INCDTIM for control and monitoring the important environmental parameters. These applications directly communicate with an equipment hardware that consists from an electronic board called \"AVR_NET_IO\" with its own firmware using a microcontroller ATmega32 type. Using these control system it is possible to monitor the temperature variation in Datacenter, the active power on a long period and it will be possible to reduce the energy consumption.","PeriodicalId":297141,"journal":{"name":"2014 IEEE International Conference on Automation, Quality and Testing, Robotics","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133081007","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 : 2014-05-22DOI: 10.1109/AQTR.2014.6857857
V. Stroian, P. Bourque, A. Abran
Performance is seen as multidimensional parameter by an organization, which can be managed in both a graphical and a transparent manner. Because managing performance targets in software engineering is so critically important, the historical data, analysis models, and tools that take into account the specifics of software development and maintenance must be available to the organization. In this paper, a white-box tool, “MultiPERF”, based on the international ISBSG Repository of software project data, is proposed for setting performance targets in software organizations.
{"title":"A white-box tool to set performance targets in software engineering management using the ISBSG repository","authors":"V. Stroian, P. Bourque, A. Abran","doi":"10.1109/AQTR.2014.6857857","DOIUrl":"https://doi.org/10.1109/AQTR.2014.6857857","url":null,"abstract":"Performance is seen as multidimensional parameter by an organization, which can be managed in both a graphical and a transparent manner. Because managing performance targets in software engineering is so critically important, the historical data, analysis models, and tools that take into account the specifics of software development and maintenance must be available to the organization. In this paper, a white-box tool, “MultiPERF”, based on the international ISBSG Repository of software project data, is proposed for setting performance targets in software organizations.","PeriodicalId":297141,"journal":{"name":"2014 IEEE International Conference on Automation, Quality and Testing, Robotics","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132307747","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 : 2014-05-22DOI: 10.1109/AQTR.2014.6857897
O. Morariu, S. Răileanu, C. Morariu, T. Borangiu
Product-driven manufacturing has gained a lot of traction recently among practitioners as it has the potential to take flexibility and agility of the manufacturing system to a new level compared to hierarchical control models. The advances in embedded technology have created the premises for the emergence of truly intelligent products that are capable not only of identification and information storage, but also of complex behavior and local decision making. In this context, this paper proposes a multi-agent control system that aims to solve the new challenges introduced by the shift to product-driven manufacturing, specifically addressing the special needs for information flow between shop floor entities and the MES system. The paper presents the pilot implementation, using the JADE multi-agent platform, a backtracking scheduler, an artificial neural network (ANN) for local decision making and the experimental results outlining the agent processing requirements during the product lifecycle.
{"title":"Multi-agent system for heterarchical product-driven manufacturing","authors":"O. Morariu, S. Răileanu, C. Morariu, T. Borangiu","doi":"10.1109/AQTR.2014.6857897","DOIUrl":"https://doi.org/10.1109/AQTR.2014.6857897","url":null,"abstract":"Product-driven manufacturing has gained a lot of traction recently among practitioners as it has the potential to take flexibility and agility of the manufacturing system to a new level compared to hierarchical control models. The advances in embedded technology have created the premises for the emergence of truly intelligent products that are capable not only of identification and information storage, but also of complex behavior and local decision making. In this context, this paper proposes a multi-agent control system that aims to solve the new challenges introduced by the shift to product-driven manufacturing, specifically addressing the special needs for information flow between shop floor entities and the MES system. The paper presents the pilot implementation, using the JADE multi-agent platform, a backtracking scheduler, an artificial neural network (ANN) for local decision making and the experimental results outlining the agent processing requirements during the product lifecycle.","PeriodicalId":297141,"journal":{"name":"2014 IEEE International Conference on Automation, Quality and Testing, Robotics","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128507433","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 : 2014-05-22DOI: 10.1109/AQTR.2014.6857823
V. Estrada-Manzo, T. Guerra, Z. Lendek
This work presents a novel observer design for nonlinear descriptor systems using their Takagi-Sugeno representation. The approach allows obtaining more relaxed results than previous literature by changing the extended estimated state vector; this step permits using a full observer gain. The obtained conditions are pure LMI. Moreover, previous results are always included by the new ones. An example illustrates the benefits of the proposed method.
{"title":"An LMI approach for observer design for Takagi-Sugeno descriptor models","authors":"V. Estrada-Manzo, T. Guerra, Z. Lendek","doi":"10.1109/AQTR.2014.6857823","DOIUrl":"https://doi.org/10.1109/AQTR.2014.6857823","url":null,"abstract":"This work presents a novel observer design for nonlinear descriptor systems using their Takagi-Sugeno representation. The approach allows obtaining more relaxed results than previous literature by changing the extended estimated state vector; this step permits using a full observer gain. The obtained conditions are pure LMI. Moreover, previous results are always included by the new ones. An example illustrates the benefits of the proposed method.","PeriodicalId":297141,"journal":{"name":"2014 IEEE International Conference on Automation, Quality and Testing, Robotics","volume":"111 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128699413","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 : 2014-05-22DOI: 10.1109/AQTR.2014.6857858
C. Ile
It becomes more and more often that the improvement of the manufacturing processes imply using the statistical process control. The companies understand that by reducing the variation in a system the quality will improve and the competitiveness will also increase. It is not important only to produce parts according to the specifications, but is very important that the output of the process is between some limits, named specification limits. The present paper presents a case study from wood production industry. The simulations were done with Minitab software, but they can be done with the help of other similar software.
{"title":"The implemenation of process capability: A case study in a wood industry company","authors":"C. Ile","doi":"10.1109/AQTR.2014.6857858","DOIUrl":"https://doi.org/10.1109/AQTR.2014.6857858","url":null,"abstract":"It becomes more and more often that the improvement of the manufacturing processes imply using the statistical process control. The companies understand that by reducing the variation in a system the quality will improve and the competitiveness will also increase. It is not important only to produce parts according to the specifications, but is very important that the output of the process is between some limits, named specification limits. The present paper presents a case study from wood production industry. The simulations were done with Minitab software, but they can be done with the help of other similar software.","PeriodicalId":297141,"journal":{"name":"2014 IEEE International Conference on Automation, Quality and Testing, Robotics","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116256392","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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