Wyniki wyszukiwania - Biblioteka Nauki

1

Java simulator for an autonomous mobile robot operating in the presence of sensor faults

100%

Srebro A.

Challenges of Modern Technology

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2010

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tom Vol. 1, no. 1

56--60

EN

This paper presents two-dimensional mobile robot simulator written in Java. Robot performs autonomous navigation based on infrared sensors. Sensing range and angle can be adjusted in real-time. Obstacle detection an avoidance algorithm was implemented. In this paper, the wall-following problem for mobile robot in the presence of sensors faults is considered in detail. Time related method of robot orientation relative to the wall is shown. A few experimental tests are reported to discuss the robustness of control algorithm and verify simulations results.

2

Application of an autonomous/unmanned survey vessel (asv/usv) in bathymetric measurements

88%

Specht C. , Świtalski E. , Specht M.

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2017

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tom nr 3

36--44

EN

The accuracy of bathymetric maps, especially in the coastal zone, is very important from the point of view of safety of navigation and transport. Due to the continuous change in shape of the seabed, these maps are fast becoming outdated for precise navigation. Therefore, it is necessary to perform periodical bathymetric measurements to keep them updated on a current basis. At present, none of the institutions in Poland (maritime offices, Hydrographic Office of the Polish Navy) which are responsible for implementation of this type of measurements has at their disposal a hydrographic vessel capable of carrying out measurements for shallow waters (at depths below 1 m). This results in emergence of large areas for which no measurement data have been obtained and, consequently, the maps in the coastal zones are rather unreliable. The article presents the concept of bathymetric measurements for shallow waters with the use of an autonomous, unmanned survey vessel (ASV/USV). For this purpose, the authors modernized a typical ASV/USV unit with standard radio remote control system to the fully autonomous mode. As part of the modernization, the route planning software was created. The developed software works based on, alternatively, GNSS measurements of the coastline, or satellite images. The system was supplemented by an own autopilot (adapted for flying drones). Moreover, the method of controlling electric motors was changed thanks to the use of own electronic circuit. The modernized ASV/USV measuring system was verified by performing bathymetric measurements of the retention reservoir in Gdansk, Poland. Then, the obtained measurement data were used to create a digital bottom model and a bathymetric map of the reservoir.

3

Universal Autonomous Control and Management Sytem for multipurpose unmanned surface vessel

88%

Stateczny A. , Burdziakowski P.

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tom nr 1

30--39

EN

The paper presents design, structure and architecture of the Universal Autonomous Control and Management System (UACAMS) for multipurpose unmanned surface vessel. The system was designed, installed and implemented on the multipurpose platform - unmanned surface vessel named HydroDron. The platform is designed to execute hydrographic survey missions with multi-variant configuration of the survey system (payload? ) including multi-beam echo sounder, sonar, LiDAR, automotive radar, photographic and spectral camera systems. The UACAMS designed to provide flexibility that enables to operate on the different kind of surface platform and different type of functional payload. The full system configuration provides all four level of autonomy starting from remotely controlled to full autonomous mission. Each level can be implemented and run depending on user specific requirements. The paper explains the differences between autonomous and automatic mission and shows how the autonomy is implemented into the presented system. The full hardware structural design as well as the software architecture are described. In order to confirm initial assumptions the applied system was tested during four- week sea trials and tuned for a selected vessel to confirm assumptions. In the project, also the original shore control station was designed, produced and tested for the vessel, including specific user controls and radio communication system. Conclusions sum up all crucial points of the design and system implementation process.

4

Autonomous Knowledge-oriented Clustering Using Decision-Theoretic Rough Set Theory

88%

Yu H. , Chu S. , Yang D.

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tom Vol. 115, nr 2/3

141-156

EN

In many applications, clusters tend to have vague or imprecise boundaries. It is desirable that clustering techniques should consider such an issue. The decision-theoretic rough set (DTRS) model is a typical probabilistic rough set model, which has the ability to deal with imprecise, uncertain, and vague information. This paper proposes an autonomous clustering method using the decision-theoretic rough set model based on a knowledge-oriented clustering framework. In order to get the initial knowledge-oriented clustering, the threshold values are produced autonomously based on semantics of clustering without human intervention. Furthermore, this paper estimates the risk of a clustering scheme based on the decision-theoretic rough set by considering various loss functions, which can process the different granular overlapping boundary. An autonomous clustering algorithm is proposed, which is not only experimented with the synthetic data and the standard data but also applied in the web search results clustering. The results of experiments show that the proposed method is effective and efficient.

5

Smart ships – autonomous or remote controlled?

75%

Kobyliński L.

Zeszyty Naukowe Akademii Morskiej w Szczecinie

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2018

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tom nr 53 (125)

28--34

EN

Nowadays the time of the smart ship is at the door. This is the result of the new, Fourth Industrial Revolution that is fast approaching. The Fourth Industrial Revolution is the result of an enormous increase in information being acquired, stored, processed, and transmitted The effect of this has been smart domestic appliances, robots, telephones, production machines, and other objects, visible everywhere in everyday life. There are obviously many advantages to the introduction of smart vehicles and attempts to introduce smart cars into traffic are already in progress. Smart ships are also currently attracting much attention. RINA organized three international conferences on this subject in a short space of time. An attempt to send a fully autonomous experimental ship across the Atlantic is already in progress. Although technically it would be possible to already build smart ships, there are many practical problems to be solved before they could be put into operation. Apart from purely technical problems there are problems of the economy, safety, security, and environmental protection as well as legal and political problems. There are also important problems regarding employment, training, and human relations. Questions are now being asked as to whether smart ships would be fully autonomous, remote controlled, or manned with a skeleton crew, and who will ultimately be responsible for the ship in question and how smart ships will affect sea traffic. Some of these problems have been discussed in this paper.

6

Fatigue tests and numerical analyses of the PAWO autonomous electric vehicle

75%

Podkowski K. , Okruch Ł.

Archiwum Motoryzacji

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2021

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tom Vol. 93, nr 3

39--58

EN

The following article presents fatigue testing and FEM numerical analysis of an autonomous electric vehicle, PAWO autonomous operational support platform. The purpose of the study, which was carried out in the ŁUKASIEWICZ – Automotive Industry Institute, was to verify the structure of the platform by forcing in three axes on the position: a table with six degrees of freedom "MAST", as well as conducting fatigue numerical analyses, allowing to determine places critical for fatigue endurance. This will be the starting point for the modification of the structure, and also will allow you to identify places that you need to pay attention to during tests and subsequent operation. The results of these tests allow us to determine critical places due to fatigue strength and possible intervention before starting field tests with a complete vehicle, as well as to detect places that should be noted during tests, inspections and tests, and in development versions of the vehicle.

7

Interpreting identity impressions through community making: From Brussels’ autonomous collective through the ethnic Albanian triangle

75%

Halili T.

Studia Ethnologica Pragensia

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2022

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nr 1

43-59

EN

This paper, as part of a study explores the reinvention of identity and culture through community making, specifically in the process of creation and way of functioning of autonomous temporal groups and intentional communities through socio-cultural spaces. The analysis makes use of a network of four different organized communities from Western and South-Eastern Europe, namely Toestand (Brussels, Belgium), Termokiss (Prishtina, Kosova), Space Tetova (Tetova, North Macedonia), with a specific focus on the performance of the project − event Uzina (Tirana, Albania). Through an ethnographic approach, based on active participant observation and interviews that are shown below, this research is an attempt to engage the participating members of the different groups in the construction of the thorough insight of the research. The patterns of intercultural contact and reflexive behaviors in this collective’s endeavors, accentuate the complexity of relationships that arise in the course of the collaboration of the network and wider, revealing the ‘agonistic’ dynamics of Self and Other, West and East, unity and diversity, giver and receiver, hierarchy and equality, global and local, concentrating on new social movements and contemporary identity practices in Europe.

8

System sterowania autonomicznego pojazdu A-EVE

63%

Długosz M. , Roman M. , Węgrzyn P.

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tom R. 97, nr 8

42--47

PL

W artykule opisano koncepcję układu sterowania prototypowego autonomicznego pojazdu elektrycznego A-EVE. Opracowano koncepcję dwupoziomowego układu sterowania który składa się z układu sterowania niskopoziomowego i wysokopoziomowego. W pracy opisano kluczowe elementy autonomicznego pojazdu A-EVE takie jak sensory, układ sterowania, układy bezpieczenstwa. Przeanalizowano wpływ flagi kompilacji programu sterownika niskiego poziomu na czas wykonywania programu sterowania.

EN

The paper presented the concept of the control system of the prototype electric autonomous vehicle A-EVE. The proposed control system is a two-level of control system which contain a low level and a high level control system. The paper describes the key elements of the autonomous A-EVE vehicle, such as sensors, control system, and safety systems. Additionally, the impact of the program compilation flag for the low-level control program execution time was analyzed.

9

Praca zdalna w administracji samorządu terytorialnego – rozwiązanie na czas kryzysu czy nowy standard?

63%

Matyjas-Łysakowska P. , Maroń A.

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tom 3(XXII)

375-389

EN

Due to the crisis situation related to the SarsCov-2 virus pandemic, employers were forced to look for solutions that would enable the continuity of work and at the same time secure safety in the era of recommended social isolation. The authors discuss the legal conditions for the use of remote work in local government administration during a pandemic. Legal solutions adopted for the duration of the pandemic made it possible for employees to work remotely, at the request of the employer. The study indicates the legal conditions for the use of remote work in local government administration. The authors also present the assumptions of remote work in the proposed amendment to the Labour Code introducing remote work into the Polish legal system on a permanent basis. They discuss the factors that may limit the use of remote work in public administration, in particular in local government administration, despite the lack of subjective and objective premises for the use of remote work in the draft. These factors are the type of work performed, the workplace and variants of remote work. Due to the use of remote work, certain elements of autonomous subordination permeate the employment relationship of local government employees. It is worthy of a positive assessment that the classic model of subordination of a local government employee is giving way to a more flexible form of autonomous subordination.

PL

W związku z kryzysową sytuacją związaną z pandemią wirusa SarsCov-2 pracodawcy zostali zmuszeni do poszukiwania rozwiązań umożliwiających zachowanie ciągłości pracy i jednocześnie zapewniających bezpieczeństwo w dobie zalecanej społecznej izolacji. Autorki podejmują omówienie prawnych warunków stosowania pracy zdalnej w administracji samorządowej w czasie pandemii. Prawne rozwiązania przyjęte na czas trwania pandemii umożliwiły pracownikom wykonywanie pracy zdalnie, na polecenie pracodawcy. W opracowaniu wskazane są prawne warunki stosowania pracy zdalnej w administracji samorządowej. Autorki przedstawiają także założenia pracy zdalnej w świetle projektowanej nowelizacji Kodeksu pracy wprowadzającej pracę zdalną na stałe do polskiego porządku prawnego. Omawiają czynniki, które mogą ograniczać stosowanie pracy zdalnej w administracji publicznej, w szczególności w administracji samorządowej, pomimo braku w projekcie przesłanek podmiotowych i przedmiotowych stosowania pracy zdalnej. Te czynniki to rodzaj wykonywanej pracy, miejsce pracy i warianty pracy zdalnej. Za sprawą stosowania pracy zdalnej do stosunku pracy pracowników samorządowych przenikają pewne elementy podporządkowania autonomicznego. Na pozytywną ocenę zasługuje fakt, że klasyczny model podporządkowania pracownika samorządowego ustępuje na rzecz bardziej elastycznej postaci podporządkowania autonomicznego.

10

Pojazdy autonomiczne a moralność sztucznej inteligencji

51%

Klochowicz T. S.

Journal of TransLogistics

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2018

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tom Vol. 4, nr 1

205--112

PL

Branża logistyczna boryka się z niedoborem kierowców zawodowych. W artykule zaprezentowano czym jest sztuczna inteligencja oraz pojazdy autonomiczne. Opisany został problem moralny tworzenia takowych środków transportu opierający się na dylemacie wagonik. Czy technologia będzie musiała czekać na rozwikłanie problemu moralnego?

EN

The logistics industry is struggling with the shortage of professional drivers. The article presents what artificial intelligence and autonomous vehicles are. The moral problem of creating such means of transport based on the trolley problem has been described. Will technology have to wait for a solution to the moral problem?