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    Wyświetlanie 1-7 z 7
    Tytuł:
    Autonomous assembly and disassembly – key technologies and links for the adaptive self-optimization of future circular production
    Autorzy:
    Ihlenfeldt, Steffen
    Lorenz, Marcel
    Frieß, Uwe
    Fritzsche, Rayk
    Powiązania:
    https://bibliotekanauki.pl/articles/24084681.pdf
    Data publikacji:
    2023
    Wydawca:
    Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
    Tematy:
    autonomous assembly
    autonomous disassembly
    autonomous level
    circular economy
    Opis:
    European industry and beyond, faces the challenge of becoming carbon neutral within an unprecedented short timeframe. An important approach to achieve this goal is the transformation of the current economy to a circular economy. In this context, the reuse of technical products as well as their recycling are in the foreground. Flexibility and adaptability are crucial for the competitiveness of companies. Therefore, adaptive and autonomous assembly and disassembly systems are the key. Classically automated assembly systems are inflexible due to a mostly rigid and predefined sequence control and are mostly strongly oriented towards economic criteria. Existing autonomous production cells, with their focus on autonomy and failure-free operation, also reach their limits in terms of adaptivity. For this reason, intelligent systems are needed that are able to act autonomously and without interference, as well as to cope with complex and cognitively demanding situations and tasks.
    Źródło:
    Journal of Machine Engineering; 2023, 23, 2; 5--15
    1895-7595
    2391-8071
    Pojawia się w:
    Journal of Machine Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Learning to Swim - How Operational Design Parameters Determine the Grade of Autonomy of Ships
    Autorzy:
    Uge, C.
    Hochgeschurz, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/2063966.pdf
    Data publikacji:
    2021
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    Operational Design Domain
    autonomous vessels
    authonomy of ships
    autonomous shipping
    grade of authonomy
    level of authonomy
    BZERO project
    Opis:
    In recent years, ideas and applications for autonomous shipping have been rapidly increasing. In most of today’s ship bridge systems decision support systems with different capabilities are installed and officers of the watch rely on them. First tests with fully and constrained autonomous ships are on the way. One of them is the B0 | BZERO project, with the aim of an autonomous 8-hour watch-free bridge, while the ship is still manned. The system’s constraints are captured in the operational design domain (ODD) defining all conditions under which the autonomous system can operate safely. We propose the definition of a preliminary ODD considering both regulatory and technical restrictions. Furthermore, we present a new way of defining the level of autonomy of a ship by using the ODD and navigational specifications.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2021, 15, 3; 501--509
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    ASTS: Autonomous switching of task-level strategies
    Autorzy:
    Wang, Xianchang
    Lv, Bingyu
    Wang, Kaiyu
    Zhang, Rui
    Powiązania:
    https://bibliotekanauki.pl/articles/24200698.pdf
    Data publikacji:
    2023
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    task level
    autonomous switching strategy
    blackboard system
    poziom zadania
    strategia przełączania
    system tablicowy
    Opis:
    Autonomous coordination of multi-agent systems can improve the reaction and dispatching ability of multiple agents to emergency events. The existing research has mainly focused on the reactions or dispatching in specific scenarios. However, task-level coordination has not received significant attention. This study proposes a framework for autonomous switching of task-level strategies (ASTS), which can automatically switch strategies according to different scenarios in the task execution process. The framework is based on the blackboard system, which takes the form of an instance as an agent and the form of norm(s) as a strategy; it uses events to drive autonomous cooperation among multiple agents. A norm may be triggered when an event occurs. After the triggered norm is executed, it can change the data, state, and event in ASTS. To demonstrate the autonomy and switchability of the proposed framework, we develop a fire emergency reaction dispatch system. This system is applied to emergency scenarios involving fires. Five types of strategies and two control modes are designed for this system. Experiments show that this system can autonomously switch between different strategies and control modes in different scenarios with promising results. Our framework improves the adaptability and flexibility of multiple agents in an open environment and represents a solid step toward switching strategies at the task level.
    Źródło:
    International Journal of Applied Mathematics and Computer Science; 2023, 33, 4; 553--568
    1641-876X
    2083-8492
    Pojawia się w:
    International Journal of Applied Mathematics and Computer Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Autonomous vehicles as a challenge for the transport policy of the European Union
    Autorzy:
    Krzysztof, Tomaszewski,
    Powiązania:
    https://bibliotekanauki.pl/articles/894843.pdf
    Data publikacji:
    2019-05-30
    Wydawca:
    Uniwersytet Warszawski. Wydawnictwa Uniwersytetu Warszawskiego
    Tematy:
    autonomous vehicles
    transport policy
    artificial intelligence
    deep learning
    European Union
    innovation
    multi-level governance
    Opis:
    The article refers to the phenomenon of autonomous vehicles in the transport policy of the European Union. Their use in practice results in the need to implement new solutions in the fields of technology, law, economics and politics. The European Union is taking various steps to prepare the Member States for an autonomous revolution. The aim of the article is to conceptualise the basic problems that can be investigated in the subject matter of autonomous vehicles as well as to analyse the position and strategy of the European Union towards autonomous transport. The article uses the decision method. Among the research findings, it should be pointed out that the EU as an international organisation is open and prepared to address the challenges posed by the implementation of autonomous transport. It takes effective action to coordinate the application of new solutions at the national level (in the Member States) as well as at the transnational level. In this way, the transport sector has the chance to dynamically develop and maintain its prominent position as a key sector of the EU economy. The implementation of innovative transport solutions is a conditio sine qua non for the future of this sector.
    Źródło:
    Przegląd Europejski; 2017, 4 (46); 76-95
    1641-2478
    Pojawia się w:
    Przegląd Europejski
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Performance of a novel Receiver Autonomous Integrity Monitoring procedure consistent with IMO requirements
    Autorzy:
    Mink, M.
    Heck, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/134914.pdf
    Data publikacji:
    2015
    Wydawca:
    Akademia Morska w Szczecinie. Wydawnictwo AMSz
    Tematy:
    Global Navigation Satellite Systems
    integrity
    Receiver Autonomous Integrity Monitoring
    maritime
    International Maritime Organization
    protection level
    Opis:
    Although integrity concepts for Global Navigation Satellite Systems (GNSS) are ubiquitous in the aviation community, integrity algorithms of comparable maturity have not yet been developed for maritime users. The International Maritime Organization (IMO) specifies requirements different from those specified by the International Civil Aviation Organization (ICAO). These different requirements affect the design of the integrity algorithms with respect to integrity risk allocation and threat space. This paper describes a novel integrity algorithm based on conditions valid for maritime users. The performance of the novel integrity algorithm has been assessed and compared to a conventional Receiver Autonomous Integrity Monitoring (RAIM) approach consistent with IMO requirements.
    Źródło:
    Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2015, 44 (116); 155-161
    1733-8670
    2392-0378
    Pojawia się w:
    Zeszyty Naukowe Akademii Morskiej w Szczecinie
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Sterowanie autonomicznym pojazdem podwodnym o nazwie PAST z wykorzystaniem śledzenia trajektorii
    Trajectory Tracking Control of Autonomous Underwater Vehicle Called PAST
    Autorzy:
    Szymak, Piotr
    Kot, Rafał
    Powiązania:
    https://bibliotekanauki.pl/articles/2134960.pdf
    Data publikacji:
    2022
    Wydawca:
    Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów
    Tematy:
    trajectory tracking
    high-level control
    autonomous underwater vehicle
    śledzenie trajektorii
    sterowanie wysokopoziomowe
    autonomiczny pojazd podwodny
    Opis:
    The increasing development of Autonomous Underwater Vehicles (AUVs) with varying levels of autonomy can be seen globally. The paper is devoted to the new AUV called PAST being developed and built within the Polish development project entitled „Development of the underwater autonomous transport system” (no. POIR.01.01.01-00-0893/20). Mainly, the paper focuses on high-level control of PAST AUV devoted to controlling along the desired trajectory. It demands a set of tuned controllers of advanced velocity, course, depth, and trim. The trajectory tracking algorithm should be implemented and verified for different trajectories set in practice. At the beginning of the article, an introduction to the research is inserted. Then, the following scientific issues are presented: the mathematical model of AUV motion, high-level control structure, and the trajectory tracking algorithm. Next, the results of numerical research in the Matlab environment are presented. In the end, the conclusions for future research are formulated.
    Na całym świecie można zaobserwować rosnący rozwój autonomicznych pojazdów podwodnych (AUV) o różnych poziomach autonomii. Artykuł poświęcony jest opracowywaniu i budowie nowego AUV o nazwie PAST w ramach polskiego projektu rozwojowego pt. „Rozwój podwodnego autonomicznego systemu transportowego” (nr POIR.01.01.01-00-0893/20). Artykuł koncentruje się głównie na wysokopoziomowym sterowaniu pojazdem PAST przeznaczonym do podążania wzdłuż pożądanej trajektorii. Wymaga to zaawansowanego zestawu dostrojonych kontrolerów prędkości, kursu, głębokości i trymu. Algorytm śledzenia trajektorii powinien być zaimplementowany i zweryfikowany dla różnych trajektorii wyznaczanych w praktyce. Na początku artykułu zamieszczone zostało wprowadzenie do badań. Następnie przedstawiono następujące zagadnienia naukowe: model matematyczny ruchu AUV, wysokopoziomową strukturę sterowania oraz algorytm śledzenia trajektorii. Następnie przedstawiono wyniki badań numerycznych w środowisku MATLAB. Na koniec formułowane są wnioski dla przyszłych badań.
    Źródło:
    Pomiary Automatyka Robotyka; 2022, 26, 3; 17--22
    1427-9126
    Pojawia się w:
    Pomiary Automatyka Robotyka
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    How to measure motivation to change risk behaviours in the self-determination perspective? The Polish adaptation of the Treatment Self-Regulation Questionnaire (TSRQ) among patients with chronic diseases
    Autorzy:
    Życińska, Jolanta
    Januszek, Maciej
    Jurczyk, Maria
    Syska-Sumińska, Joanna
    Powiązania:
    https://bibliotekanauki.pl/articles/430822.pdf
    Data publikacji:
    2012
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    Self-Determination Theory (SDT)
    autonomous motivation
    risk behaviours
    global and contextual motivation (level of generality)
    measurement
    Opis:
    The aim of this study was to validate the Polish adaptation of the Treatment Self-Regulation Questionnaire (TSRQ; Ryan, Conell, 1989), which measures the degree of self-determination in risk behaviour changes (diet, exercise and smoking). The study comprised 219 patients (101 after acute coronary syndrome and 118 with type 2 diabetes), beginning to undergo treatment. The Global Motivation Scale was used to test a convergent validity. The confi rmatory factor analysis (CFA) did not support the theoretical four-factor model, thus an exploratory analysis was conducted to determine an optimal model across risk behaviours. The adopted two-factor model matched original TSRQ subscales: autonomous motivation and external regulation (it did not contain the items from the introjected regulation and amotivation subscales). The internal consistency of factors (Cronbach’s α) ranging from .78 to .89. Structural equation modeling revealed the impact of global motivation on contextual motivation, limited to the equivalent type of regulation. The action aimed at supporting patient’s autonomy should consider the particular behaviour and the global motivation as a resource in disease.
    Źródło:
    Polish Psychological Bulletin; 2012, 43, 4; 261-271
    0079-2993
    Pojawia się w:
    Polish Psychological Bulletin
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-7 z 7

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