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open-source software architecture for multi-robot Wire Arc Additive Manufacturing (WAAM)

APPLICATIONS IN ENGINEERING SCIENCE 2025年 22卷

作者： He, Honglu Lu, Chen-Lung Ren, Jinhan Dhar, Joni Saunders, Glenn Wason, John Samuel, Johnson Julius, Agung Wen, John T. Rensselaer Polytech Inst Elect Comp & Syst Engn 110 8th St Troy NY 12180 USA Rensselaer Polytech Inst Mfg Innovat Ctr 110 8th St Troy NY 12180 USA Rensselaer Polytech Inst Mech Aerosp & Nucl Engn 110 8th St Troy NY 12180 USA Wason Technol LLC 32 Spice Bush Lane Tuxedo Pk NY 10987 USA

Wire Arc Additive Manufacturing (WAAM) is a metal 3D printing technology that deposits molten metal wire on a substrate to form desired geometries. Articulated robot arms are commonly used in WAAM to produce complex geometric shapes. However, they mostly rely on proprietary robot and weld control software that limits process tuning and customization, incorporation of third-party sensors, implementation on robots and weld controllers from multiple vendors, and customizable user programming. This paper presents a general open-source software architecture for WAAM that addresses these limitations. The foundation of this architecture is Robot Raconteur, an open-source control and communication framework that serves as the middleware for integrating robots and sensors from different vendors. Based on this architecture, we developed an end-to-end robotic WAAM implementation that takes a CAD file to a printed WAAM part and evaluates the accuracy of the result. The major components in the architecture include part slicing, robot motion planning, part metrology, in-process sensing, and process tuning. The current implementation is based on Motoman robots and Fronius weld controller, but the approach is adaptable to other industrial robots and weld controllers. The capability of the WAAM system is demonstrated through the printing of parts with various geometries and acquisition of in-process sensor data for real-time motion adjustment.

关键词： Wire arc additive manufacturing open source architecture 3D printing Slicing Welding Manufacturing sensors Industrial robot Multi-robot coordination

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Integrated open source Design for architecture in High-Density Housing Practice

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Journal of Civil Engineering and architecture 2015年第9期9卷 1085-1098页

作者： Yan Gao Xin Guo Tiantian Lo Qiang Chang Department of Architecture University of Hong Kong Hong Kong 999077 China College of Architecture and Urban Planning Shenzhen University Shenzhen 518053 China School of Architecture Chinese University ofHong Kong Hong Kong 999077 China International Research Centre of Computational Design Tsinghua Architectural Design & Research Institute Beijing 100084China

High-density housing can be interpreted as collections of individual units, which inevitably results in the dilemma between the global standardization designed by architects and local customization implemented by users. However, it is impossible to reflect the users＇ various needs in the conceptual design stage for high-density housing because of the economic, industrial and time constrains. In response to this challenge, this research paper outlines a different high-density housing design approach that can adopt users＇ individual customization in the conceptual design stage during the housing design practice. Hence, the design process would be an open-ended evolutionary and transparent process rather than deterministic executions as we have now in most high-density cities, such as Hong Kong. In order to overcome the deficiency in addressing future uncertainties of different users and address the issues of one-off developments without iterating users＇ feedback in the housing practice, this essay proposes IOSDA （integrated open source design for architecture） for the design practice of high-density housing, through collective data and parametric connectivity between users and architects. IOSDA reflects a different design attitude towards the future, i.e., to shift from architects＇ heroic prediction of the future to collective engagement of the present with more robust capacities for new possibilities.

关键词： open source architecture high density urban transformation plug-in infrastructure smart BIM iterative design parametric crowd network thinking.

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Analysis of Vulnerabilities in Satellite Software Bus Network architecture

Analysis of Vulnerabilities in Satellite Software Bus Networ...

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IEEE Military Communications Conference (MILCOM)

作者： Schalk, Adrian Brodnik, Luke Brown, Dane US Naval Acad Cyber Sci Dept Annapolis MD 21402 USA

ISBN: (纸本)9781665485340

With the rapid expansion of the space industry, there has been a strong push to develop simple, reusable, and easy to deploy satellite system architecture solutions. The space industry may have assumed that the complexity of their systems of systems would make the vulnerability discovery process too difficult for attackers. However, focused research into the design of modern Software-Bus (SB) dependent satellite systems has the ability to reveal numerous vulnerabilities in deployed space system architectures. In particular, our in-depth analysis of NASA's open source core Flight System (cFS) resulted not only in the discovery of various novel vulnerabilities, but also the implementation of several straight-forward, practical exploits. Due to the lack of authentication required to execute commands via the SB as well as the inability to recover from an attack in a robust manner, cFS is vulnerable to a number of attacks through the SB entry point. This paper presents four exploit demonstrations on the unsecured cFS bus architecture, and then provides recommendations on how to secure against these attacks and make a modern satellite system architecture more robust.

关键词： Space Network architecture Software Bus System architecture Network architecture Cyber System Design Satellite Cyber Security core Flight System Space Data Link Security open source architecture

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Occupancy Detection for Emergency Management of Smart Building Based on Indoor Localization: A Feasibility Study

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SN Computer Science 2021年第6期2卷 419页

作者： Khoche, Sarthak Chandrasekhar, K. Vinay Sasirekha, G.V.K. Bapat, Jyotsna Das, Debabrata International Institute of Information Technology-Bangalore Bangalore India Penn State University State College PA United States

Occupancy detection is essential in smart buildings from energy management and comfort management perspectives. Information on the occupancy also plays an important role in the successful execution of the rescue plan by the first responders in emergency situations. Emergency situations demand proactive, real-time, low latency, and accurate occupancy detection mechanisms. Several occupancy detection mechanisms based on the CO ₂ levels, camera images, RF signals, etc. are discussed in the literature. However, practical realization and deployment of these mechanisms, specifically concerning emergency scenarios, needs exploration. In this paper, a proactive open-source client-server architecture of a Wi-Fi localization-based occupancy detection system is presented. This system can be deployed in smart buildings for emergency management. The architectural overview, design details, implementation, and testing procedures for this system are discussed in detail. The details of a simulator used for testing, based on random walk mathematical model are also presented. The results proving the functionality and performance of the system are shown in detail. © 2021, The Author(s), under exclusive licence to Springer Nature Singapore Pte Ltd.

关键词： (IoT)Analytics Elasticsearch ELK stack Emergency management Internet of things Kibana Logstash Occupancy detection open source architecture Smart building Wi-Fi localization

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Near Real-time Occupancy Detection for Smart Building Emergency Management: A Prototype 6

Near Real-time Occupancy Detection for Smart Building Emerge...

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6th IEEE International Symposium on Smart Electronic Systems (IEEE-iSES)

作者： Khoche, Sarthak Sasirekha, G. V. K. Bapat, Jyotsna Das, Debabrata Int Inst Informat Technol Bangalore IIIT B Networking & Commun Res Lab Bangalore Karnataka India

ISBN: (纸本)9781665404785

Occupancy detection plays an important role in smart buildings from energy-comfort management as well as emergency management perspectives. Occupancy detection system in emergency situations needs to be more proactive, real-time with low latency and high accuracy as compared to that required for energy-comfort management. Such occupancy detection information can help first responders to plan the rescue operations better. In this paper, an open source architecture of a Wi-Fi localization-based occupancy detection system prototype for emergency management in smart buildings is presented. Design, implementation and testing procedures for this system are detailed. A simulator build for performance testing has been described. The results of the testing are discussed from its realtime performance and accuracy perspective.

关键词： Wi-Fi localization Occupancy detection ELK Stack Elasticsearch Kibana Logstash Internet of Things (IoT)Analytics Smart Building open source architecture

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Architectural Patents and open-source architectures: The Globalisation of Spatial Design Innovations (or Learning from ‘E99’)

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Architectural Design 2016年第5期86卷 92-99页

作者： Garcia, Mark

Patents are the strongest form of intellectual property rights available internationally, so far unbeaten by open source as a body of innovation and know-how. Mark Garcia, senior lecturer in the Department of architecture & Landscape at the University of Greenwich, London, here considers the pros and cons of the patent system for architects in the digital age: from issues over patent categorisation by type, to possibilities of micro-royalties through the capacity of design software to track every stage of input from multiple contributors. Copyright © 2016 John Wiley & Sons, Ltd.

关键词： Adam Jaffe Airbus Apple Arup Auguste Perret Barack Obama Bohlin Cywinski Jackson Charles Babbage Charles Ellis Charlotte Perriand Chuck Hoberman Department of architecture and Landscape Eduardo Torroja European Patent Office (EPO) Filippo Brunelleschi Florence Foster + Partners Frank Gehry and Gehry Technologies Frank Lloyd Wright Frederick Kiesler global patent system Greenwich Megagram 2.0 Installation sanitaire intellectual property rights (IPRs) Joseph Strauss Kickstarter Kieran Timberlake Knoll Laurence York Le Corbusier London Mark Garcia micro-royalties Mike Aling Modular Adaptable Housing Units Oliver Patent open source architecture Patentscope (the World Intellectual Property Organization (WIPO) database) Peter Bohlin Rem Koolhaas/OMA Richard Buckminster Fuller Royal Institute of British Architects (RIBA) Santiago Calatrava Shigeru Ban SOM Sponsume Steve Jobs Thomas Hobbes's Leviathan Unites States Patent and Trademark Office (USPTO) University of Greenwich Venice Wallace Harrison Zaha Hadid Architects ‘FrontisPatents’ ‘Il Bardalone’

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