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Wyświetlanie 1-10 z 31
Tytuł:
Radar antykolizyjny
Anti-collision radar
Autorzy:
Jarzemski, J.
Szagajew, L.
Powiązania:
https://bibliotekanauki.pl/articles/235054.pdf
Data publikacji:
2006
Wydawca:
Wojskowy Instytut Techniczny Uzbrojenia
Tematy:
radary antykolizyjne
anti-collision radars
Opis:
W artykule przedstawiono przegląd radarów antykolizyjnych, przeznaczonych dla pojazdów samochodowych oraz niektóre problemy związane z konstrukcją radaru.
The overview of anti-collision radar systems designated for the vehicles and some problems concerning its development are presented in the paper.
Źródło:
Problemy Techniki Uzbrojenia; 2006, R. 35, z. 99; 211-216
1230-3801
Pojawia się w:
Problemy Techniki Uzbrojenia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis on the process of ship striking the anti-collision pier
Autorzy:
Zhao, C.
Yan, H.
Powiązania:
https://bibliotekanauki.pl/articles/2211921.pdf
Data publikacji:
2022
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
navigational infractructure
anti-collision
anti-collision pier
inland waters
analysis of ship collision
collision avoidance
collision force
China's shipping industry
Opis:
China's extensive inland navigable water system determines that inland navigation must be an important part of China's shipping industry. The collision process of ship striking the anti-collision pier is analyzed through simulation experiment in this paper. The results show that the collision process usually lasts less than 2 seconds, and the peak value of the collision force, friction and resultant force appears 0.5 after the start of the collision.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2022, 16, 3; 501--504
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Spatial motion of the aircraft manoeuvring to avoid moving obstacle
Autorzy:
Graffstein, J.
Powiązania:
https://bibliotekanauki.pl/articles/279527.pdf
Data publikacji:
2016
Wydawca:
Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:
anti-collision manoeuvre
obstacle avoidance
flight simulation
Opis:
In the paper, mathematical relationships which are used to describe kinematic variables of the aircraft-obstacles configuration and motion of the aircraft are presented. These define the base for the set of conditions enabling determination of the possibility and threat of collision. The second important aim of such a definition is creation of prerequisites for selection of an appropriate anti-collision manoeuvre, computation of reference signals and inequalities used as limitations on these signals in the automatic flight control process. Theoretical analysis is illustrated by an example of computer simulation of the flight of aircraft. Two anti- -collision manoeuvres are studied in this experiment. The first one, performed in a vertical plane, consists in emergency climbing. The second one, performed in the horizontal plane, is shaped by three turns, each one of small radius, to go around the obstacle and then return to the previously realised flight path.
Źródło:
Journal of Theoretical and Applied Mechanics; 2016, 54, 1; 99-111
1429-2955
Pojawia się w:
Journal of Theoretical and Applied Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Presentation algorithm of possible collision solutions in a navigational decision support system
Autorzy:
Borkowski, P.
Powiązania:
https://bibliotekanauki.pl/articles/360103.pdf
Data publikacji:
2014
Wydawca:
Akademia Morska w Szczecinie. Wydawnictwo AMSz
Tematy:
anti-collision manoeuvre
navigational decision support system
Opis:
The article discusses an algorithm devised for presentations of acceptable solutions to collision situations of ships at sea. The solutions, course alteration ranges, are determined in compliance with the Collision Regulations. The solutions account for cases where more than two vessels are involved in a collision situation. The algorithm has been implemented into NAVDEC, a navigational decision support system. The presented results have been obtained in field research, onboard the motor vessel “Nawigator XXI”.
Źródło:
Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2014, 38 (110); 20-26
1733-8670
2392-0378
Pojawia się w:
Zeszyty Naukowe Akademii Morskiej w Szczecinie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evolutionary sets of cooperating ship trajectories : COLREGS compliance
Autorzy:
Szłapczyńska, J.
Szłapczyński, R.
Powiązania:
https://bibliotekanauki.pl/articles/2069662.pdf
Data publikacji:
2010
Wydawca:
Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:
evolutionary algorithms
multi-ship encounters
anti-collision
COLREGS
Opis:
The paper presents a newly designed improvement to the method of solving multi-ship encounter situations. In general, the method combines some of the assumptions of game theory with evolutionary programming and aims to find optimal set of cooperating trajectories of all ships involved in an encounter situation. The improvement presented here is a new way of modelling some of the COLREGS rules. Due to this change, the method is now able to find solutions, which are more compliant with COLREGS, more intuitive and consequently – safer from the navigator’s point of view.
Źródło:
Journal of Polish Safety and Reliability Association; 2010, 1, 1; 231--238
2084-5316
Pojawia się w:
Journal of Polish Safety and Reliability Association
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Interrogation zone determination in HF RFID systems with multiplexed antennas
Autorzy:
Jankowski-Mihułowicz, P.
Węglarski, M.
Powiązania:
https://bibliotekanauki.pl/articles/141107.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
anti-collision identification
interrogation zone
multiplexed antennas
RFID
Opis:
The operation of an anti-collision RFID system is characterized by the interrogation zone which should be estimated in any direction of 3D space for a group of electronic transponders. The interrogation zone should be as large as possible. However, the many problems in this area are due to the fact that energy can be transferred to transponders only on a limited distance. The greatest flexibility in developing RFID applications and shaping the interrogation zone can be achieved using the system with an antenna multiplexer. Therefore the problem of the interrogation zone determination in HF RFID systems with two orthogonal RWD antennas is presented in the paper. The perceived issues have been effectively dealt with and the solution has been proposed on the basis of the elaborated model. Conducted studies have been used to develop the software tool JankoRFIDmuxHF in the Mathcad environment. The research results are analysed in an example system configuration. The specialized measuring stand has been used for experimental verification of the identification efficiency. The convergence of the measurements and calculations confirms a practical usefulness of the presented concept of interrogation zone determination in anti-collision systems. It also shows the practical utility of the developed model and software tools.
Źródło:
Archives of Electrical Engineering; 2015, 64, 3; 459-470
1427-4221
2300-2506
Pojawia się w:
Archives of Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An anti-collision method of slip barrel for automatic ship loading in bulk terminal
Autorzy:
Shen, Y.
Powiązania:
https://bibliotekanauki.pl/articles/260532.pdf
Data publikacji:
2016
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
automatic ship loading
bulk terminal
anti-collision
slip barrel
Opis:
During the loading operation of a ship loader in bulk terminal, in order to bring bulk cargo, such as coal and ore, precisely into every corner of the cabin and not to raise dust at the same time, the slip barrel mechanism usually is placed fully inside the ship cabin near the cargo as close as possible. However, if too close, it will increase the risk of collision between slip barrel and cargo, which poses a security risk to loading operation. This article proposes an anti-collision method for slip barrel in the process of automatic ship loading in bulk terminal. This method can accurately position the cargo of cabin which is blocked by slip barrel and shovel, and provide a reliable guarantee for the automatic loading operation. Firstly, this method use an array of laser radar mounted on the maintenance platforms to perceive the collision objects around the slip barrel, including the cargo and cabin. Meanwhile, it provides a compensation algorithm to reduce the effect of anti-collision recognition brought by dust and various obstacles during the operation. According to the calculated effective distance between the cargo and slip barrel, the automatic control system of ship loading can adjust the loading operation on a real-time basis. In the end, this article analyze and illustrate the reliability and validity of this method by the case of the application in automatic ship loading system in Tianjin coal terminal.
Źródło:
Polish Maritime Research; 2016, S 1; 144-151
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Collision risk mitigating system for light rail vehicles(LRV)
Autorzy:
Antkowiak, B.
Powiązania:
https://bibliotekanauki.pl/articles/94132.pdf
Data publikacji:
2018
Wydawca:
Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
Tematy:
anti-collision
rolling stock
tram
safety
LIDAR
RTK
tabor
Opis:
This piece is dedicated to the description of the development of collision risk mitigating system. The proposed concept of control system is designed to enhance safety of passengers, a driver and other people in vicinity of light rail vehicles (tramways). The requirements were fulfilled thanks to the application of lidar sensor and feature of vehicle positioning on the track map created basing on precise measurements with the use of satellite navigation system Real Time Kinematic. The map allows to eliminate errors of system operation and to enhance resistance to unfavorable ambient conditions, i.e. temperature or fog. The system calculates work braking distance for particular vehicle speed. In case of obstacle detection which is closer to vehicle than the calculated braking distance, the driver is informed about a collision risk with a buzzer and optical signalization. The system has already been implemented and tested.
Źródło:
Archives of Mechanical Technology and Materials; 2018, 38; 50-56
2450-9469
Pojawia się w:
Archives of Mechanical Technology and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Using the phased array antenna to increase geometric size of the interrogation zone in a UHF RFID system
Autorzy:
Jankowski-Mihułowicz, P.
Kawalec, D.
Węglarski, M.
Lichoń, W.
Powiązania:
https://bibliotekanauki.pl/articles/141093.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
phased array antenna
anti-collision identification
interrogation zone
RFID
Opis:
An attempt to increase the geometric size of the interrogation zone in UHF RFID systems with a phased array antenna is presented in this paper. The interrogation zone should be as large as possible. However, energy can be transferred to transponders only to a limited distance. The greatest flexibility in developing RFID applications and shaping the interrogation zone can be achieved using a phased array antenna. The perceived issues have been effectively dealt with and the solution has been proposed on the basis of an elaborated model. Conducted studies have been used to develop a software tool in the Mathcad environment. The research results are analyzed in detail for different system configurations and can be implemented in practical projects to be developed in cooperation with the industry.
Źródło:
Archives of Electrical Engineering; 2017, 66, 4; 761-772
1427-4221
2300-2506
Pojawia się w:
Archives of Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Anti-collision system with radar obstacle detector
Antykolizyjny system wykorzystujący radarowy detektor przeszkód
Autorzy:
Graffstein, J.
Powiązania:
https://bibliotekanauki.pl/articles/276558.pdf
Data publikacji:
2013
Wydawca:
Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów
Tematy:
system antykolizyjny
system wykrywania przeszkód
awionika
anti-collision system
collision avoidance system
avionics
Opis:
In the article the construction of anti-collision system with radar obstacle detector is presented. Cooperation between individual sub-systems and devices is described in the paper. Functionality of subsequent sub-systems is discussed. Significant parameters characterising the system and its elements are presented.
W pracy przedstawiono opis budowy systemu antykolizyjnego wykorzystującego radarowy detektor przeszkód. Opisano sposób współdziałania poszczególnych urządzeń. Przedstawiono sposób i zakres wykonywanych funkcji przez poszczególne urządzenia systemu. Zamieszczono istotne parametry techniczne charakteryzujące system i jego elementy.
Źródło:
Pomiary Automatyka Robotyka; 2013, 17, 2; 171-175
1427-9126
Pojawia się w:
Pomiary Automatyka Robotyka
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-10 z 31

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