Wyniki wyszukiwania - BazTech

1

Wrocławski Węzeł Wodny

Dziubińska A., Weintrit A.

Logistyka

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2014

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nr 3

1602--1627

PL

W artykule dokonano analizy stanu infrastruktury nawigacyjnej żeglugi śródlądowej na górnej Odrze w rejonie Wrocławskiego Węzła Wodnego. Na Wrocławski Węzeł Wodny składają się zarówno elementy historycznej infrastruktury, które z powodzeniem służą po dzień dzisiejszy, jak i zmodernizowane śluzy i kanały. Węzeł był tworzony przez wiele wieków, przez co istniejące rozwiązania techniczne są różnorodne, a Wrocławski Węzeł Wodny jest uważany za jeden z najbardziej skomplikowanych i unikatowych węzłów w Europie.

EN

The article analyzes the state of the inland navigation infrastructure on the upper Oder River in the area of Wroclaw Waterway Junction. The Wroclaw Waterway Junction consists of both the historical elements of the infrastructure, which have been successfully used to the present day, as well as modernized locks and canals. The junction has been created for many centuries, by which the existing technical solutions are diverse, and Wroclaw Waterway Junction is considered as one of the most complex and unique waterway junction in Europe.

2

The utilization of GNSS at airports with underdeveloped navigation infrastructure

Novák A.

Logistyka

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2014

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nr 6

7898--7901

EN

This paper complements other procedures and elements (continue descent operations (CDO), PBN and airspace management) to increase efficiency, safety, access and predictability. This paper describes what is an available regarding approach procedure and can be more widely used now.

3

Analiza infrastruktury nawigacyjnej w kontekście oceny bezpieczeństwa nawigacyjnego w delcie Wisły i na Zalewie Wiślanym

Rutkowski G.

Zeszyty Naukowe Akademii Marynarki Wojennej

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2010

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R. 51 nr 1 (180)

51-63

PL

Niniejszy artykuł obejmuje analizę infrastruktury nawigacyjnej w kontekście oceny bezpieczeństwa nawigacyjnego oraz możliwości uprawiania żeglugi w delcie Wisły i na Zalewie Wiślanym. W artykule zaproponowano sposób oceny bezpieczeństwa żeglugi (ryzyka nawigacyjnego) w akwenie ograniczonym z wykorzystaniem przestrzennego modelu domeny statku.

EN

The paper deals with the navigational infrastructure analysis with respect to safety of navigation in the mouth of the Vistula River. In this paper the author also presents methods that can be used for estimating safety of navigation (navigational risk) in the restricted sea areas by means of the model of the ship’s domain. The essence of the method suggested in the thesis is the systematic approach to sea vessel operation in the aspect of estimating its safety when navigating in restricted sea areas.

4

Infrastruktura nawigacyjna. Jej rodzaje, kryteria oceny oraz zasady projektowania

Kopacz Z., Morgaś W., Urbański J.

Zeszyty Naukowe Akademii Marynarki Wojennej

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2007

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R. 48 nr 1 (168)

35-54

PL

W artykule, stanowiącym element realizacji projektu badawczego pt. "Badanie Infrastruktury Nawigacyjnej w Funkcji Zarządzania Bezpieczeństwem Morskim i Ochrona na Południowym Bałtyku", podjęto próbę zdefiniowania infrastruktury nawigacyjnej, jej rodzajów, kryteriów oceny oraz podstawowych zasad jej projektowania. Autorzy starali się uwzględnić w artykule wszystkie zasadnicze wymagania dotyczące bezpieczeństwa morskiego i ochrony antyterrorystycznej zawarte w międzynarodowych, ponadregionalnych (UE) i regionalnych (dot. Morza Bałtyckiego) aktach prawnych oraz deklaracji kopenhaskiej.

EN

The paper, constituting the element of the research project on: "Study of the Function of Navigational Infrastructure in the Process of Management of Maritime Safety and Security in the Southern Part of the Baltic Sea", an attempt was made to present the today's state of navigational infrastructure, criteria of its evaluation and principles of its design. The authors made efforts to take into consideration all the international, supraregional and regional requirements related to maritime safety and antiterrorist security, as included in legal documents and Copenhagen Declaration.

5

Planowanie akcji pozycjonujących robota mobilnego współpracującego z zewnętrzną infrastrukturą nawigacyjną

Skrzypczyński P.

Studia z Automatyki i Informatyki

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2004

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T. 28/29

127--152

PL

Artykuł przedstawia próbę rozwiązania problemu optymalizacji współpracy robota mobilnego oraz infrastruktury nawigacyjnej związanej z otoczeniem w zadaniu samolokalizacji. Rozważane są dwa rodzaje sensorów: kamery monitorujące obserwujące robota z zewnątrz oraz kamera pokładowa wykorzystywana do pozycjonowania przy użyciu sztucznych znaczników rozmieszczonych w otoczeniu. Dysponując wiedzą o położeniu kamer monitorujących i sztucznych znaczników robot mobilny wykorzystuje analityczne modele niepewności sensorów do zaplanowania optymalnej sekwencji akcji pozycjonujących. Zaprezentowano wyniki badań symulacyjnych i eksperymentalnych.

EN

This article studies positioning action planning issues for a mobile robot co-operating with an external infrastructure supporting its navigation tasks. The infrastructure consists of a number of stationary sensors (cameras) and artificial navigation aids (landmarks) placed in the environment. Analytical uncertainty models used in vision-based positioning are developed. An action planning procedure, taking into account in an exact way both the action cost and the positioning uncertainty is presented. Results of simulations and experiments are reported.

6

Positioning with interactice navigational structure implementation

Czaplewski K.

Annual of Navigation

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2004

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No. 7

1--119

EN

The most essential outcome of theoretical studies and selected numerical analyses, presented in this work, are the suggestions related to the technology of producing and working out the results of observations, carried out in the Interactive Navigational Structures. Implementing such a Structure into navigation practice will enable supporting the positioning process by taking use of objects, which until present, in classic navigation, have been omitted due to a lack of information about their coordinates. Establishing and dynamic developing the Interactive Navigational Structures is of special importance, in case the available positioning systems appear insufficient (e.g. in submarine navigation or any work of special character). IANS can be based on various systems and navigational observations, including the satellite GPS systems. Selection of an observational model, accommodated to any current navigational situation, is simplified owing to the decisive functions, recommended in the work; applying the above functions, in conjunction with the functions of attenuation, has resulted in making more efficient the process of estimation, robust for out-lying observations. Due to diversity of the observations sets and the "by stages" way of working them out, the estimation is of sequential character (sequential robust estimation). The adjustment task, formulated and resolved in this work, has been related to the method and adjusted to the IANS chain being under development. The fundamental elements of this task's function of target are, the suggested in the work, the equivalent-decisive covariance matrix and equivalent-decisive weights matrix, both connected by statistical model. The method of identification of not only out-lying observations but also out-lying adjustment points and neutralization of an influence thereof is also advised in the work; the method has been resulted from free adjustment and M-estimation principles. The method, named hybrid M-estimation, can make a great difference specially in extreme navigation conditions, carried out basing intensely on points of the set R. The numerical tests, described in Chapter 6, refer to simulation of elementary navigational situations, connected with developing IANS and using thereof. They are to illustrate principal properties of the suggested conceptions. The results of the first of the tests have confirmed a possibility of taking use of the recommended structures in some special tasks of navigation at sea. Extremely interesting properties (the second test), first of all those of robust character, were revealed by hybrid M-estimation. The obtained results have proved that there is a chance to carry out reliable navigation, being compelled only to applying of IANS. The presented conceptions have been basically completed in respect of the theory concerning establishing, developing and mathematical working out the Interactive Navigational Structures. However, the work is incomprehensive in regard to practical implementation of the displayed models. For example, there is a possibility to use the described structures in submarine navigation. A lack of any classic navigational systems in sea depth has been forcing to seek new solutions, as the Interactive Navigational Structure is. The above solutions may also be extensively employed in radar navigation. Radar observations are often biased with gross errors, caused by radar echo generation technique. The robust estimation, if applied in the version presented in this work, may significantly improve final determinations' standard. The recommended mathematical models and methods of their parameters evaluation are applicable to maritime navigation under a certain condition. The available at present nautical information about navigational signing elements should be complemented. All the suggested solutions may not be in today's situation fully exercised (especially hybrid M-estimation) due to a lack of information about covariance matrixes or at least about errors of determining coordinates of stable and floating navigational signs, embraced by any optional navigational system.