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New methodology for the characterization of 3D model reconstructions to meet conditions of input data and requirements of downstream applications

New methodology for the characterization of 3D model reconst...

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2024 International design Society Conference, design 2024

作者： Joost, Robert Mönchinger, Stephan Lindow, Kai Fraunhofer Institute for Production Systems and Design Technology IPK Germany

In the field of 3D model reconstruction, manifold methods have been developed that derive CAD models from 3D scan data. Opposed to classical CAD modelling, where surface and solid modelling exist, a further diversification of modelling techniques is observed, caused by different methods to build up the geometry. This research introduces a new classification, the so-called Level of Complexities. It can be applied to the complete Reverse Engineering process chain and lays the foundation for further research on how to match requirements arising from all process steps and downstream applications. © 2024 Proceedings of the design Society. All rights reserved.

关键词： Decision making

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Deep Learning-Based Optical Character Recognition for Identifying On-Label Printed Part Numbers of Used Automotive Parts: A Comparative Study of Open Source and Commercial Methods 19th

Deep Learning-Based Optical Character Recognition for Identi...

引用

19th Global Conference on Sustainable Manufacturing, GCSM 2023

作者： Schlüter, Marian Tepper, Christian Briese, Clemens Kroeger, Ole Vicente-Garcia, Raul Krüger, Jörg Fraunhofer Institute for Production Systems and Design Technology IPK Berlin Germany

ISBN: (纸本)9783031774287

This paper explores the use of deep learning-based optical character recognition (OCR) to identify part numbers for used automotive parts. It compares open source and advanced AI methods to commercial tools from Google, Amazon, and Microsoft. The study finds that fine-tuned open source models outperform commercial services, especially for complex part numbers unrelated to any language structure. The preferred open source method, MaskedTextSpotter, is fine-tuned with image data from old vehicle and electrical parts, captured by a smartphone and 2D barcode scanner. Additionally, a new data augmentation method, CharChan, is introduced, replacing detected characters with random examples for better character recognition. The experiments demonstrate the efficacy of deep learning-based OCR for automotive part number identification. © The Author(s) 2025.

关键词： Deep learning

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Planning of Time-Efficient Trajectories for Mobile Robots with Differential-Drives 29

Planning of Time-Efficient Trajectories for Mobile Robots wi...

引用

29th IEEE International Conference on Emerging Technologies and Factory Automation, ETFA 2024

作者： Lelidis, Philipp Vick, Axel Production Machinery and Equipment Management Fraunhofer Institute for Production Systems and Design Technology Ipk Berlin Germany Process Automation and Robotics Fraunhofer Institute for Production Systems and Design Technology Ipk Berlin Germany

ISBN: (纸本)9798350361230

To effectively utilize the capacities of the production facilities, flexible and fast transport, and manipulation technology is essential. Current path planning methods use simple paths without exploiting the physical limitations of mobile robots. This paper deals with the time-efficient kinematic planning of path and velocity trajectories for autonomous mobile robots equipped with a differential-drive, used to load and unload machine tools. For a close parking position next to the machine tools, the mobile robot must approach practically straight without the necessity of turning at the end. After a brief definition of the kinematics of a mobile robot with nonholonomic constraints, a Bezier-curve is combined with multiple jerk-limited velocity trajectories considering the initial and final state as well as the physical limitations. For a time-efficient acceleration and deceleration the maximum acceleration of the mobile robot is used and differentiated into the radial and tangential acceleration. This allows a quickly reached close parking pose next to a machine tool. The algorithm is tested with simulations in RVIZ in combination with Gazebo and ROS2 as well as with the real mobile robot Tend-o-Bot. © 2024 IEEE.

关键词： Mobile robots

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Requirements for an AI driven Extended Reality assistance system for assembly tasks 10

Requirements for an AI driven Extended Reality assistance sy...

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10th International Conference on Virtual Reality, ICVR 2024

作者： Konkol, Kathrin Reusing, Hannah Fraunhofer Institute for Production Systems and Design Technology IPK Extended Reality Berlin Germany

ISBN: (纸本)9798350364231

Nine qualitative expert interviews were conducted to assess the requirements for an intelligent assistance system for virtual assembly in extended reality applications. The research interest lies in understanding current industry and research needs for assistance features of AR, VR, and MR applications that support manual assembly tasks. Additionally, the use of artificial intelligence as a supporting technology was investigated. We gathered expert opinions on relevant features and grouped them into seven categories: Augmentation of information in-situ, identification of components, provision of data, analysis of user action, analysis of environment, optimization of processes, and Usability improvements. The experts feedback on the concept of a software demonstrator was collected and structured. The research shows a need for adaptive assistance systems that are capable of categorizing the user's actions and intent in order to assist efficiently. © 2024 IEEE.

关键词： Virtual environments

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Comparison of binderless carbide with conventional carbide as a cutting material for milling 23

Comparison of binderless carbide with conventional carbide a...

引用

23rd International Conference of the European Society for Precision Engineering and Nanotechnology, EUSPEN 2023

作者： Uhlmann, E. Hein, C. Dargin, M. Fraunhofer Institute for Production Systems and Design Technology IPK Berlin Germany

ISBN: (纸本)9781998999132

In order to be able to use the resources more sustainably and at the same time reduce the costs of machining, it is important to identify new types of cutting materials. Up to now, tools made of carbide have often been used in machining. Carbide has a high hardness H and, compared to other tool materials, enables long tool life T. This has a positive effect on process reliability. Conventional carbide usually consists of tungsten carbide WC and cobalt Co. The tungsten carbide WC represents the hard material itself. The cobalt Co is a binder and ensures that the hard materials are kept together. This combination makes the carbide less hard than the pure hard materials. The reduction of the hardness H of the material also results in a reduction in the tool life T of the milling tool. Various approaches are being pursued to increase the tool life T of the milling tool. One approach is the reduction of the binder in carbides. The reduction of the binder increases the hardness H of the material and thus the tool life T of the milling tool. Conventional carbide has a cobalt content of 6% © 2023 Euspen Headquarters.

关键词： Tungsten carbide

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Digital Twins for Sustainability in the Context of Biological Transformation 18th

Digital Twins for Sustainability in the Context of Biologica...

引用

18th Global Conference on Sustainable Manufacturing, GCSM 2022

作者： Seegrün, Anne Mügge, Janine Riedelsheimer, Theresa Lindow, Kai Fraunhofer Institute for Production Systems and Design Technology IPK Berlin Germany

ISBN: (纸本)9783031288388

Applying biological principles that are similar to those found in nature to product engineering and manufacturing offers new approaches to product and production systems and might lead to a significant contribution towards sustainability. By transferring materials, structures, and processes of natural to digital ecosystems industrial value creation can be optimized. A promising approach to establish a networked, self-regulating digital ecosystem represents a digital twin. The potential of digital twins within the context of biological transformation has not been researched yet. This paper attempts to provide a first entry into the research topic by identifying biological principles within the concept of a digital twin and analyzing its potential for biological transformation in the industry. As a main result, the paper presents a list of relevant principles of biological transformation based on a structured taxonomy. These are specified within the concept of a digital twin. © 2023, The Author(s).

关键词： Sustainable development

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Assessing the State of Corporate Digital Transformation: Results and Implications From a Global Survey 19

Assessing the State of Corporate Digital Transformation: Res...

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19th European Conference on Management Leadership and Governance, ECMLG 2023

作者： Kidschun, Florian Budde, Felix Gomes, Alida Soar Fraunhofer Institute for Production Systems and Design Technology Ipk Berlin Germany

ISBN: (纸本)9781914587924

Digitalization has a significant impact on value-creating organizations of all sectors. New business models and processes are becoming established, the development of products and services is changing as well as the interaction with customers, partners and suppliers. As these changes create new requirements for companies, they need to reorient and adapt to them. To structure the topic of corporate digital transformation with its many individual elements, which can either be digitized and networked/integrated or create the conditions for the digital transformation of further elements, a reference framework has been developed that covers the essential value creation elements of a company in the context of digital transformation. Based on this framework, a self-assessment tool ('Digital Transformation Assessment (DTA)') was developed to carry out a survey on the current status of corporate digital transformation globally. This contribution outlines the key analysis results, through an applied and observational research, within the timeframe from 2020 to 2023, based on a quanti-qualitative analysis of answers from over 880 companies worldwide. The paper contributes to the literature on digital transformation by verifying through the analysis of the results that effective digital transformation requires not only investments in technology, but also a holistic approach that encompasses organizational, cultural, and strategic changes. Therefore, the role of leaders and the creation of a digital transformation-oriented corporate culture are keys to driving success in this process. © 2023 Proceedings of the European Conference on Management, Leadership and Governance. All Rights Reserved.

关键词： Digital Transformation Model Self-assessment Survey

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Developing Digital Twins for energy efficiency in the production phase of products 31

Developing Digital Twins for energy efficiency in the produc...

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31st CIRP Conference on Life Cycle Engineering, LCE 2024

作者： Wehking, Sebastian Riedelsheimer, Theresa Tanrikulu, Cansu Lindow, Kai Fraunhofer Institute for Production Systems and Design Technology IPK Pascalstraße 8-9 Berlin10587 Germany

The relevance of digital solutions to enable sustainable value creation, the monitoring and ultimately the reduction of the environmental footprint has increased. New information technologies and increased data availability along a product's lifecycle offer more tools to assess product sustainability than ever before. This paper presents how a Digital Twin needs to be designed to help monitor product-level energy efficiency and how such a Digital Twin can be implemented. State-of-the-art research on Digital Twins and their development, lifecycle assessment, and energy efficiency are introduced. There is a lack of evaluated implementations of methodical DT development in different scenarios, especially for the evaluation of product-level energy efficiency during production. Results of a research project with the focus on the development and implementation of Digital Twins are presented. The use case is set within the scenario of the sequential development of a product simultaneously with the development of the Digital Twin. The focus is put on the implementation of an energy consumption prediction and product carbon footprint analytics module as part of the Digital Twin. The development approach is presented and recommendations for the development of future Digital Twins are derived. © 2024 The Author(s).

关键词： Energy efficiency

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Enabling digitally integrated product design and production through digital continuity and feedback to design 34

Enabling digitally integrated product design and production ...

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34th CIRP design Conference, CIRP 2024

作者： Till, Tschiltschke Michael, Manoury Marvin Theresa, Riedelsheimer Kai, Lindow Fraunhofer Institute for Production Systems and Design Technology IPK Pascalstraße 8-9 Berlin10587 Germany

Due to global and political influence, resilient and versatile production systems are unavoidable. Based on existing Product Lifecycle Management (PLM) systems there is a growing need for a consistent communication between machines and product design to enable integrated product and production process design. Core aspects are integrating the product design information directly into the production equipment and their feedback into the product design as well as into other phases of the product creation and usage. Therefore, a generalized production description language as well as an architecture for the digital integrated product design and production need to be developed. This paper presents the first results of a use case in the automotive industry. The approach of developing the functional architecture is shown. Several feedback to X approaches were researched in literature and analyzed regarding functional requirements for integration in the developed architecture. The results are the main basis for further implementation within the automotive production. Moreover, the main challenges and next steps are discussed. © 2024 The Authors. Published by Elsevier B.V.

关键词： Automotive industry

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Conception and Requirements Identification of Gaia-X-Based Service Offerings 29

Conception and Requirements Identification of Gaia-X-Based S...

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29th Annual Americas Conference on Information systems: Diving into Uncharted Waters, AMCIS 2023

作者： Tanrikulu, Cansu Gogineni, Sonika Kondak, habil Konstantin Lindow, Kai Fraunhofer Institute for Production Systems and Design Technology IPK Germany Elektra Solar GmbH Germany

ISBN: (纸本)9781713893592

Gaia-X is an initiative to develop the next generation of a secure and federated European data infrastructure to promote digital sovereignty for data exchange to fuel innovations. This paper introduces the basics of Gaia-X, in particular the mobility domain, followed by the federated system and its standards. In addition, a research methodology is presented to help conceptualize and derive requirements for service offerings on a Gaia-X-based data space. This is elaborated with a use case from the project "GAIA-X4 AMS" (Gaia-X4-Advanced Mobility Services), which reflects implementation in Gaia-X ecosystems and its added value. © 2023 29th Annual Americas Conference on Information systems, AMCIS 2023. All rights reserved.

关键词： Ecosystems

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