115 research outputs found

    Safe navigation and human-robot interaction in assistant robotic applications

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    L'abstract è presente nell'allegato / the abstract is in the attachmen

    Robots learn to behave: improving human-robot collaboration in flexible manufacturing applications

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    L'abstract è presente nell'allegato / the abstract is in the attachmen

    Annals of Scientific Society for Assembly, Handling and Industrial Robotics 2021

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    This Open Access proceedings presents a good overview of the current research landscape of assembly, handling and industrial robotics. The objective of MHI Colloquium is the successful networking at both academic and management level. Thereby, the colloquium focuses an academic exchange at a high level in order to distribute the obtained research results, to determine synergy effects and trends, to connect the actors in person and in conclusion, to strengthen the research field as well as the MHI community. In addition, there is the possibility to become acquatined with the organizing institute. Primary audience is formed by members of the scientific society for assembly, handling and industrial robotics (WGMHI)

    Computing gripping points in 2D parallel surfaces via polygon clipping

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    Annals of Scientific Society for Assembly, Handling and Industrial Robotics 2021

    Get PDF
    This Open Access proceedings presents a good overview of the current research landscape of assembly, handling and industrial robotics. The objective of MHI Colloquium is the successful networking at both academic and management level. Thereby, the colloquium focuses an academic exchange at a high level in order to distribute the obtained research results, to determine synergy effects and trends, to connect the actors in person and in conclusion, to strengthen the research field as well as the MHI community. In addition, there is the possibility to become acquatined with the organizing institute. Primary audience is formed by members of the scientific society for assembly, handling and industrial robotics (WGMHI)

    Real-Time Hybrid Visual Servoing of a Redundant Manipulator via Deep Reinforcement Learning

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    Fixtureless assembly may be necessary in some manufacturing tasks and environ-ments due to various constraints but poses challenges for automation due to non-deterministic characteristics not favoured by traditional approaches to industrial au-tomation. Visual servoing methods of robotic control could be effective for sensitive manipulation tasks where the desired end-effector pose can be ascertained via visual cues. Visual data is complex and computationally expensive to process but deep reinforcement learning has shown promise for robotic control in vision-based manipu-lation tasks. However, these methods are rarely used in industry due to the resources and expertise required to develop application-specific systems and prohibitive train-ing costs. Training reinforcement learning models in simulated environments offers a number of benefits for the development of robust robotic control algorithms by reducing training time and costs, and providing repeatable benchmarks for which algorithms can be tested, developed and eventually deployed on real robotic control environments. In this work, we present a new simulated reinforcement learning envi-ronment for developing accurate robotic manipulation control systems in fixtureless environments. Our environment incorporates a contemporary collaborative industrial robot, the KUKA LBR iiwa, with the goal of positioning its end effector in a generic fixtureless environment based on a visual cue. Observational inputs are comprised of the robotic joint positions and velocities, as well as two cameras, whose positioning reflect hybrid visual servoing with one camera attached to the robotic end-effector, and another observing the workspace respectively. We propose a state-of-the-art deep reinforcement learning approach to solving the task environment and make prelimi-nary assessments of the efficacy of this approach to hybrid visual servoing methods for the defined problem environment. We also conduct a series of experiments ex-ploring the hyperparameter space in the proposed reinforcement learning method. Although we could not prove the efficacy of a deep reinforcement approach to solving the task environment with our initial results, we remain confident that such an ap-proach could be feasible to solving this industrial manufacturing challenge and that our contributions in this work in terms of the novel software provide a good basis for the exploration of reinforcement learning approaches to hybrid visual servoing in accurate manufacturing contexts

    Annals of Scientific Society for Assembly, Handling and Industrial Robotics 2021

    Get PDF
    This Open Access proceedings presents a good overview of the current research landscape of assembly, handling and industrial robotics. The objective of MHI Colloquium is the successful networking at both academic and management level. Thereby, the colloquium focuses an academic exchange at a high level in order to distribute the obtained research results, to determine synergy effects and trends, to connect the actors in person and in conclusion, to strengthen the research field as well as the MHI community. In addition, there is the possibility to become acquatined with the organizing institute. Primary audience is formed by members of the scientific society for assembly, handling and industrial robotics (WGMHI)

    A ROS-based software architecture for a versatile collaborative dual-armed autonomous mobile robot for the manufacturing industry

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    The industrial context is changing rapidly due to advancements in technology fueled by the Internet and Information Technology. The fourth industrial revolution counts integration, flexibility, and optimization as its fundamental pillars, and, in this context, Human-Robot Collaboration has become a crucial factor for manufacturing sustainability in Europe. Collaborative robots are appealing to many companies due to their low installation and running costs and high degree of flexibility, making them ideal for reshoring production facilities with a short return on investment. The ROSSINI European project aims to implement a true Human-Robot Collaboration by designing, developing, and demonstrating a modular and scalable platform for integrating human-centred robotic technologies in industrial production environments. The project focuses on safety concerns related to introducing a cobot in a shared working area and aims to lay the groundwork for a new working paradigm at the industrial level. The need for a software architecture suitable to the robotic platform employed in one of three use cases selected to deploy and test the new technology was the main trigger of this Thesis. The chosen application consists of the automatic loading and unloading of raw-material reels to an automatic packaging machine through an Autonomous Mobile Robot composed of an Autonomous Guided Vehicle, two collaborative manipulators, and an eye-on-hand vision system for performing tasks in a partially unstructured environment. The results obtained during the ROSSINI use case development were later used in the SENECA project, which addresses the need for robot-driven automatic cleaning of pharmaceutical bins in a very specific industrial context. The inherent versatility of mobile collaborative robots is evident from their deployment in the two projects with few hardware and software adjustments. The positive impact of Human-Robot Collaboration on diverse production lines is a motivation for future investments in research on this increasingly popular field by the industry

    Process Industry 4.0: Effect on Interfaces between MES and Shop floor Integrations in Pulp and Paper Industry

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    The purpose of this thesis is to research how Industry 4.0 affects integrations between MES and shop floor in pulp and paper industry. Industry 4.0 is a generally used term for the fourth industrial revolution introducing modern technologies and producing principles into manufactur-ing. These modern technologies include big data and analytics, cloud computing, and IoT. Four Industry 4.0 design principles, interconnection, information transparency, decentralized deci-sions, and technical assistance, are handled as central principles when designing Industry 4.0 compliant factories. The impact of Industry 4.0 on factories covers the entire system, including system architecture, modern technologies on shop floor, and new communication methods and protocols. The thesis can be divided into two parts, theoretical and practical part. First in the theoretical part, comprehensive literature review was conducted to find out Industry 4.0 related trends that affect the shop floor. As in pulp and paper industry little Industry 4.0 related research has been done, the scope of the literature review covered also research done in other industrial fields. Based on the findings of the literature review, Industry 4.0 compliant prototype was designed and implemented. The design and implementation of the prototype form the practical part of the thesis. The most promising trends that are likely to be seen in factories when moving towards In-dustry 4.0 compliant smart factories, are smarter sensors, devices, and products, new wireless communication technologies and IoT messaging protocols, cloud and fog computing, service-oriented architecture, and decentralisation of decision making. As new communication technol-ogies, such as IoT messaging protocols, seemed to be an important part of almost every find-ing in literature review, prototype was decided to be built based on communication using OPC UA PubSub over MQTT. In this thesis it is concluded that investing in Industry 4.0 is crucial for business success in the future. In several articles and other sources introduced in this thesis the positive impact of Industry 4.0 solutions on factories has been shown. These benefits include e.g., increased prof-itability and productivity, more adaptability, and solutions for more complicated customer needs and scarce resources. Companies working with Manufacturing Execution Systems should be prepared to all the changes discussed in this thesis, although, as stated in the thesis, many of the recent technologies need to be tested more thoroughly in real production environment prior to concluding their suitability for pulp and paper industry. The implemented prototype gives promising results and indicates that communication using OPC UA PubSub over MQTT is rela-tively easy to implement
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