Pub Date : 2019-07-01DOI: 10.1109/INDIN41052.2019.8972227
Johannes Meyer, Lars Klitzke, Gerd von Cölln
This work presents a new approach to estimate the orientation of wireless sensor nodes (WSN) using geomagnetic sensors. The main contribution is a new algorithm for supervised orientation estimation using geomagnetic fingerprinting. Combined with hierarchical sensing our approach leads to a significant reduction of power consumption.
{"title":"Probabilistic Geomagnetic Fingerprinting for Low-Power Orientation Estimation utilising Geometric Models","authors":"Johannes Meyer, Lars Klitzke, Gerd von Cölln","doi":"10.1109/INDIN41052.2019.8972227","DOIUrl":"https://doi.org/10.1109/INDIN41052.2019.8972227","url":null,"abstract":"This work presents a new approach to estimate the orientation of wireless sensor nodes (WSN) using geomagnetic sensors. The main contribution is a new algorithm for supervised orientation estimation using geomagnetic fingerprinting. Combined with hierarchical sensing our approach leads to a significant reduction of power consumption.","PeriodicalId":260220,"journal":{"name":"2019 IEEE 17th International Conference on Industrial Informatics (INDIN)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124132669","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 : 2019-07-01DOI: 10.1109/INDIN41052.2019.8972224
Felix Uster, D. Timmermann
Renewable energies lead to a decentralization of power generation but also to a destabilization of the power grid, as photovoltaic or wind turbine systems provide nearly zero inertia that is essential for a stable power grid. Leveraging consumer devices to support already present grid control systems counter the growing grid instability. These devices may adapt their power consumption continuously, rather than erratic on-off switching, to provide a grid-friendly stabilization effect. Simulations with a grid model of Continental Europe and multiple consumer load control schemes with different consumer-impact levels were performed to analyze stabilization effect and user tolerability. The results show effective stabilization by the tested consumer load control schemes during a reference incident, allowing them to be used for various devices and device groups. Additional, the simulations proved the scalability of the proposed control algorithms.
{"title":"Decentral Load Control for Grid Stabilization","authors":"Felix Uster, D. Timmermann","doi":"10.1109/INDIN41052.2019.8972224","DOIUrl":"https://doi.org/10.1109/INDIN41052.2019.8972224","url":null,"abstract":"Renewable energies lead to a decentralization of power generation but also to a destabilization of the power grid, as photovoltaic or wind turbine systems provide nearly zero inertia that is essential for a stable power grid. Leveraging consumer devices to support already present grid control systems counter the growing grid instability. These devices may adapt their power consumption continuously, rather than erratic on-off switching, to provide a grid-friendly stabilization effect. Simulations with a grid model of Continental Europe and multiple consumer load control schemes with different consumer-impact levels were performed to analyze stabilization effect and user tolerability. The results show effective stabilization by the tested consumer load control schemes during a reference incident, allowing them to be used for various devices and device groups. Additional, the simulations proved the scalability of the proposed control algorithms.","PeriodicalId":260220,"journal":{"name":"2019 IEEE 17th International Conference on Industrial Informatics (INDIN)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128374142","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 : 2019-07-01DOI: 10.1109/INDIN41052.2019.8972136
Mira Jeong, Minji Park, ByoungChul Ko
In this paper, we propose a lightweight multi-layer random forest (LMRF) model. The LMRF model is a non-neural network-style deep model composed of arbitrary forests rather than layers. DNN is a powerful algorithm for facial recognition (FER), but there are too many parameters, careful parameter tuning, large amounts of training data, black box models, and pretrained architecture required for a current DNN. To overcome the burden of real-time processing DNN, we use the proposed LMRF with two tree structures per layer and a small number of trees for high-speed FER. We conducted experiments using an actual driving database captured using a near-infrared (NIR) camera to monitor the driver's emotions. The proposed LMRF provides similar FER accuracy to DNN with a small number of hyperparameters, and the faster processing time using the CPU.
{"title":"Intelligent Driver Emotion Monitoring Based on Lightweight Multilayer Random Forests","authors":"Mira Jeong, Minji Park, ByoungChul Ko","doi":"10.1109/INDIN41052.2019.8972136","DOIUrl":"https://doi.org/10.1109/INDIN41052.2019.8972136","url":null,"abstract":"In this paper, we propose a lightweight multi-layer random forest (LMRF) model. The LMRF model is a non-neural network-style deep model composed of arbitrary forests rather than layers. DNN is a powerful algorithm for facial recognition (FER), but there are too many parameters, careful parameter tuning, large amounts of training data, black box models, and pretrained architecture required for a current DNN. To overcome the burden of real-time processing DNN, we use the proposed LMRF with two tree structures per layer and a small number of trees for high-speed FER. We conducted experiments using an actual driving database captured using a near-infrared (NIR) camera to monitor the driver's emotions. The proposed LMRF provides similar FER accuracy to DNN with a small number of hyperparameters, and the faster processing time using the CPU.","PeriodicalId":260220,"journal":{"name":"2019 IEEE 17th International Conference on Industrial Informatics (INDIN)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128586847","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 : 2019-07-01DOI: 10.1109/INDIN41052.2019.8972152
S. Mayer, Nikolas Höhme, Dennis Gankin, C. Endisch
In industry, individualization leads to a slow replacement of assembly line production with more flexible modular assembly systems. In modular systems, each product can be completed on multiple routes through a grid of modular workstations, where transportation is handled by automated guided vehicles (AGV). In order to benefit from this routing flexibility and to react on disturbances in the system, new robust control approaches are crucial. While optimizing the production flow globally is limited by computing power, this work presents a decentralized control approach that reduces complexity by dividing the problem into sub-problems: A job release agent releases jobs at certain points in time according to the system’s inventory level. Each job in the system is linked to a job routing agent regularly choosing the optimal route out of the options given by the product’s flexibility. Every modular station is represented by a workstation agent optimizing the workstation’s schedule. Lastly, a vehicle agent assigns transports optimally to the AGVs and coordinates them accordingly. An evaluation example emphasized the decentralized approach as a valid way for real-time robust control solutions, where the makespan was about five percent away from the static optimum.
{"title":"Adaptive Production Control in a Modular Assembly System – Towards an Agent-based Approach","authors":"S. Mayer, Nikolas Höhme, Dennis Gankin, C. Endisch","doi":"10.1109/INDIN41052.2019.8972152","DOIUrl":"https://doi.org/10.1109/INDIN41052.2019.8972152","url":null,"abstract":"In industry, individualization leads to a slow replacement of assembly line production with more flexible modular assembly systems. In modular systems, each product can be completed on multiple routes through a grid of modular workstations, where transportation is handled by automated guided vehicles (AGV). In order to benefit from this routing flexibility and to react on disturbances in the system, new robust control approaches are crucial. While optimizing the production flow globally is limited by computing power, this work presents a decentralized control approach that reduces complexity by dividing the problem into sub-problems: A job release agent releases jobs at certain points in time according to the system’s inventory level. Each job in the system is linked to a job routing agent regularly choosing the optimal route out of the options given by the product’s flexibility. Every modular station is represented by a workstation agent optimizing the workstation’s schedule. Lastly, a vehicle agent assigns transports optimally to the AGVs and coordinates them accordingly. An evaluation example emphasized the decentralized approach as a valid way for real-time robust control solutions, where the makespan was about five percent away from the static optimum.","PeriodicalId":260220,"journal":{"name":"2019 IEEE 17th International Conference on Industrial Informatics (INDIN)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130312188","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 : 2019-07-01DOI: 10.1109/indin41052.2019.8972314
{"title":"Distributed Architectures in Electric Power Systems: The Key Components","authors":"","doi":"10.1109/indin41052.2019.8972314","DOIUrl":"https://doi.org/10.1109/indin41052.2019.8972314","url":null,"abstract":"","PeriodicalId":260220,"journal":{"name":"2019 IEEE 17th International Conference on Industrial Informatics (INDIN)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130352665","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 : 2019-07-01DOI: 10.1109/INDIN41052.2019.8972253
G. Veselov, A. Sklyarov, Jordanis Viltres Chávez
The paper demonstrates a new approach to the nonlinear control of a tracked robotic platform. As a control object, a tracked mobile robot chosen because, among other ground vehicles, it is the most maneuverable and designed to work in conditions of limited space. To take into account the nonlinear characteristics of the control object, the article deals with the analysis of a mathematical model of a mobile robotic platform. Also, provides an overview of modern methods and approaches to the control of tracked robotic platform. The problems of controlling the mobile robot are highlighted, in particular, the application of methods and approaches based on the application of system linearization methods, which makes a robotic system with these control laws limited to certain local control algorithms. Therefore, the paper presents an explanation of the use of new non-linear approaches to the mobile robots control, in particular, synergetic control theory. The main method, within the framework of this theory, is the method of analytical design of aggregated regulators (ADAR), which allows to synthesize control laws for complex nonlinear systems of large dimensionality without using linearization procedures or other simplifications, so this method is used to synthesize the synergetic control law of a mobile robot. The resulting control laws takes into account the nonlinear properties of the mobile robotic platform model; therefore, this control strategy ensures the asymptotic stability of the close-loop system and the precise execution of the specified invariants. To verify the resulting system, computer simulation is used. The simulation results confirm that in the synthesized closed-loop mobile robot control system, movement to a given point of the working plane with a given angle of orientation of the platform is provided.
{"title":"Non-linear control of a tracked robot","authors":"G. Veselov, A. Sklyarov, Jordanis Viltres Chávez","doi":"10.1109/INDIN41052.2019.8972253","DOIUrl":"https://doi.org/10.1109/INDIN41052.2019.8972253","url":null,"abstract":"The paper demonstrates a new approach to the nonlinear control of a tracked robotic platform. As a control object, a tracked mobile robot chosen because, among other ground vehicles, it is the most maneuverable and designed to work in conditions of limited space. To take into account the nonlinear characteristics of the control object, the article deals with the analysis of a mathematical model of a mobile robotic platform. Also, provides an overview of modern methods and approaches to the control of tracked robotic platform. The problems of controlling the mobile robot are highlighted, in particular, the application of methods and approaches based on the application of system linearization methods, which makes a robotic system with these control laws limited to certain local control algorithms. Therefore, the paper presents an explanation of the use of new non-linear approaches to the mobile robots control, in particular, synergetic control theory. The main method, within the framework of this theory, is the method of analytical design of aggregated regulators (ADAR), which allows to synthesize control laws for complex nonlinear systems of large dimensionality without using linearization procedures or other simplifications, so this method is used to synthesize the synergetic control law of a mobile robot. The resulting control laws takes into account the nonlinear properties of the mobile robotic platform model; therefore, this control strategy ensures the asymptotic stability of the close-loop system and the precise execution of the specified invariants. To verify the resulting system, computer simulation is used. The simulation results confirm that in the synthesized closed-loop mobile robot control system, movement to a given point of the working plane with a given angle of orientation of the platform is provided.","PeriodicalId":260220,"journal":{"name":"2019 IEEE 17th International Conference on Industrial Informatics (INDIN)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131162099","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 : 2019-07-01DOI: 10.1109/INDIN41052.2019.8972219
M. Kuzman, X. D. T. García, Soledad Escolar, A. Caruso, S. Chessa, J. C. López
The Internet of Things (IoT) paradigm poses a great variety of application domains where million of devices work uninterruptedly to improve some aspect of our lives. To support the continuous execution of the applications working on the devices, energy harvesting systems enable to extract the energy found naturally in the environment (for instance from the sun or from the wind) and convert it into energy able to either sustain the device’s operation and recharge its batteries which, in conjunction with an appropriate scheduling strategy, led to the device to an electrically sustainable state (i.e. an energy-neutral state). Most of the works found in literature oriented to achieve energy neutrality are however evaluated by means of simulation which means that, in spite of precisely modeling hardware features and energy productions, lack of the realism that we find in a real deployment. A minor part of the works are based on a real deployment but do not share the collected data that permit to replicate the analysis. With this purpose in mind, in this article we describe a testbed designed for outdoor monitoring purposes in the IoT context, equipped with several sensors for weather conditions monitoring and with a solar panel to provide application lifetimes potentially infinite. The testbed was deployed on the roof of a building and it executed uninterruptedly an application able to generate a dataset with the collected information over a period of more than two months. This dataset has been online published to be used for different researching purposes, as for instance, prediction models of the energy production.
{"title":"A Testbed and an Experimental Public Dataset for Energy-Harvested IoT Solutions","authors":"M. Kuzman, X. D. T. García, Soledad Escolar, A. Caruso, S. Chessa, J. C. López","doi":"10.1109/INDIN41052.2019.8972219","DOIUrl":"https://doi.org/10.1109/INDIN41052.2019.8972219","url":null,"abstract":"The Internet of Things (IoT) paradigm poses a great variety of application domains where million of devices work uninterruptedly to improve some aspect of our lives. To support the continuous execution of the applications working on the devices, energy harvesting systems enable to extract the energy found naturally in the environment (for instance from the sun or from the wind) and convert it into energy able to either sustain the device’s operation and recharge its batteries which, in conjunction with an appropriate scheduling strategy, led to the device to an electrically sustainable state (i.e. an energy-neutral state). Most of the works found in literature oriented to achieve energy neutrality are however evaluated by means of simulation which means that, in spite of precisely modeling hardware features and energy productions, lack of the realism that we find in a real deployment. A minor part of the works are based on a real deployment but do not share the collected data that permit to replicate the analysis. With this purpose in mind, in this article we describe a testbed designed for outdoor monitoring purposes in the IoT context, equipped with several sensors for weather conditions monitoring and with a solar panel to provide application lifetimes potentially infinite. The testbed was deployed on the roof of a building and it executed uninterruptedly an application able to generate a dataset with the collected information over a period of more than two months. This dataset has been online published to be used for different researching purposes, as for instance, prediction models of the energy production.","PeriodicalId":260220,"journal":{"name":"2019 IEEE 17th International Conference on Industrial Informatics (INDIN)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130811428","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 : 2019-07-01DOI: 10.1007/s40430-022-03914-z
Luciane B. Soares, H. Costa, S. Botelho, Daniel Souza, R. N. Rodrigues, Paulo L. J. Drews-Jr
{"title":"A Robotic Passive Vision System for Texture Analysis in Weld Beads","authors":"Luciane B. Soares, H. Costa, S. Botelho, Daniel Souza, R. N. Rodrigues, Paulo L. J. Drews-Jr","doi":"10.1007/s40430-022-03914-z","DOIUrl":"https://doi.org/10.1007/s40430-022-03914-z","url":null,"abstract":"","PeriodicalId":260220,"journal":{"name":"2019 IEEE 17th International Conference on Industrial Informatics (INDIN)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127599851","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 : 2019-07-01DOI: 10.1109/INDIN41052.2019.8972072
O. S. Timofeeva, Y. Andreev, E. Yablochnikov
The article discusses the method of technological manufacturing preparation of the production of small batches of polymer products by injection molding. It presents the results obtained during an injection molding experiment. Polymer parts (Styrolux 656C) were manufactured using interchangeable forming parts made of Digital ABS Plus by the PolyJet technology. The need to use process simulation systems and structured storage of project data in a form suitable for retrieval and reuse is noted.
{"title":"Simulation of injection molding process and 3D-printing of forming parts for small-batch production","authors":"O. S. Timofeeva, Y. Andreev, E. Yablochnikov","doi":"10.1109/INDIN41052.2019.8972072","DOIUrl":"https://doi.org/10.1109/INDIN41052.2019.8972072","url":null,"abstract":"The article discusses the method of technological manufacturing preparation of the production of small batches of polymer products by injection molding. It presents the results obtained during an injection molding experiment. Polymer parts (Styrolux 656C) were manufactured using interchangeable forming parts made of Digital ABS Plus by the PolyJet technology. The need to use process simulation systems and structured storage of project data in a form suitable for retrieval and reuse is noted.","PeriodicalId":260220,"journal":{"name":"2019 IEEE 17th International Conference on Industrial Informatics (INDIN)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126756970","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 : 2019-07-01DOI: 10.1109/INDIN41052.2019.8972071
B. Vogel‐Heuser, Frieder Loch, S. Hofer, E. Neumann, F. Reinhold, Sarah Scheuerer, J. Zinn, K. Reiss
Successful innovation processes require communication between different disciplines, such as mechanical and electrical engineering or software development. However, such communication is hampered by differences in individual mental models. This paper presents two studies that investigate mental models of engineering students. The studies apply SA/RT and card sorting to analyze mental models and were conducted at the beginning of their academic education to understand influences on discipline-specific mental models that are observed in practice. The studies indicate that mental models of engineering students are typically based on structural properties of the machines. A second study identified nine dimensions that classify mental models of students. Future work that facilitates the analysis of mental models on a larger scale is proposed. The aim of this work is to understand these differences and inform educational mechanisms that teach mental model flexibility and perspective change.
{"title":"Analyzing Students’ Mental Models of Technical Systems","authors":"B. Vogel‐Heuser, Frieder Loch, S. Hofer, E. Neumann, F. Reinhold, Sarah Scheuerer, J. Zinn, K. Reiss","doi":"10.1109/INDIN41052.2019.8972071","DOIUrl":"https://doi.org/10.1109/INDIN41052.2019.8972071","url":null,"abstract":"Successful innovation processes require communication between different disciplines, such as mechanical and electrical engineering or software development. However, such communication is hampered by differences in individual mental models. This paper presents two studies that investigate mental models of engineering students. The studies apply SA/RT and card sorting to analyze mental models and were conducted at the beginning of their academic education to understand influences on discipline-specific mental models that are observed in practice. The studies indicate that mental models of engineering students are typically based on structural properties of the machines. A second study identified nine dimensions that classify mental models of students. Future work that facilitates the analysis of mental models on a larger scale is proposed. The aim of this work is to understand these differences and inform educational mechanisms that teach mental model flexibility and perspective change.","PeriodicalId":260220,"journal":{"name":"2019 IEEE 17th International Conference on Industrial Informatics (INDIN)","volume":"145 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122622202","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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