Temat: Positioning - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Selected aspects of indoor positioning based on AIDC elements in warehouse facilities
Autorzy:: Lewczuk, K.
Załęski, A.
Powiązania:: https://bibliotekanauki.pl/articles/242845.pdf
Data publikacji:: 2018
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: AIDC
indoor positioning
warehousing
logistics
Opis:: The article presents classification of automatic identification and data acquisition techniques (AIDC) as well as techniques for indoor positioning of objects supporting logistic processes, including especially warehousing processes. The use of presented solutions and the possibility of combining AIDC technics with indoor positioning systems to increase the efficiency of logistics processes in warehouses were discussed. This combination can make a tool supporting rational decision making for allocation of idling employees and vehicles to warehouse tasks and reducing empty runs on the base of position analyse. Then, the idea of using popular AIDC devices − mobile terminals with and without RFID scanners to track the position of employees was presented and discussed. Mobile terminals can provide information about position, which can be used for the allocation of tasks (the reverse functions of mobile terminals). Review of AIDC techniques in warehouses and industrial facilities, information flow in AIDC techniques, positioning techniques in a closed space, Resources positioning and the efficiency of the warehouse process, typical and new approaches to positioning resources in warehouse, the reverse function of mobile terminals are presented in the article.
Źródło:: Journal of KONES; 2018, 25, 4; 555-562
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Navigational safety of shuttle tankers
Autorzy:: Śniegocki, H.
Powiązania:: https://bibliotekanauki.pl/articles/246277.pdf
Data publikacji:: 2010
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: shuttle tankers
dynamic positioning
safety of navigation
oil transportation
Opis:: This article deals with a very important problem, i.e. with the safety of shuttle tankers at sea. The author presents systems and mechanisms observed at these types of vessels which have great influence on safety both during loading and discharging operations, as well as at sea. A dynamic positioning system was introduced together with its subsystems and their role in increasing safety. Another issue discussed in this article is the problem of oil pollution during cargo handling operations and sea pollution resulting from accidents of tankers. This article also covers some problems connected with training of crew of these specialized vessels, operating the instruments and equipment installed on them and also with the maritime infrastructure. Some problems connected with navigation observed in some regions of the world were also discussed here. Transport of oil close to the coast is a branch of oil transportation in full swing. Each even the minor failure results in serious consequences for people, for vessels and for the environment. Constant development of new technologies used on shuttle tankers and constructing new vessels equipped with the most modern technical solutions aims at minimizing the risk of situations threatening people's life, situations dangerous for the vessel and the marine environment.
Źródło:: Journal of KONES; 2010, 17, 4; 513-520
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Pressure control in air cushions of the mobile platform
Autorzy:: Lisowski, E.
Filo, G.
Powiązania:: https://bibliotekanauki.pl/articles/242271.pdf
Data publikacji:: 2011
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: indoor transport
mobile platform
air cushions
pressure control
positioning
Opis:: In the industrial indoor transport various devices are used. Recently, the means of transport which use air cushions are more and more popular. Air cushions are particularly useful for transporting heavy loads and devices over the hardened, smooth floor. The air cushions can be directly put under the load. Then, the load is raised of the small height and displaced. The friction force between air cushion and the floor is very small. Therefore, the load can be moved by the operator. The other case of using air cushions in industrial transport is mobile platform with suitable number of air cushions instead of wheels. One of the most important problems in this case is adjustment of the transportation force in individual air cushion. An automatic control system of the transportation force has been proposed in this work. A mobile platform with four air cushions was considered. The pressure in each air cushion was regulated separately in the feedback loop. Two types of control algorithms have been investigated: the standard PID controller as well as the fuzzy logic controller. The investigations contained two cases of platform load. In the first case the load was distributed uniformly on the platform. In the second case load of two air pads was decreased and load of two other was increased. Construction of the platform, mathematical models of the controllers and results of investigations have been presented in the paper.
Źródło:: Journal of KONES; 2011, 18, 2; 261-270
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Possibilities of improving safety and reliability of ship propulsion system during dp operations
Autorzy:: Herdzik, I.
Powiązania:: https://bibliotekanauki.pl/articles/247846.pdf
Data publikacji:: 2012
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: propulsion system
dynamic positioning operation
reliability
safety
propulsion system solutions
Opis:: Improving safety and reliability of ship propulsion system during dynamic positioning (DP) operations of multipurpose vessels is an essential advantage. It may be such possibilities obtained by application the considered solutions of propulsion systems and all other elements of energetic system. The minimum requirements were determined by creating the regulations of dynamic positioning systems and their levels. Applying the solutions, which were exceeded the limits of basic requirements, allows to increase the safety and reliability levels with a low rise the investment costs. Many marine companies try to invent so low cost solutions. An example analysed in the paper is the Wartsila LCC system. The applications of more complicated solutions in comparison to required duplicated systems are expensive. The cheaper solution is an investing in the development of automatics configurations (for those systems it was applied the triple and quadruple configurations) which in transient or emergency conditions may obtain the time delay making possible a support of industry part work and DP systems. In emergency situation, after the loss of position by DP system, the power management system allow the safe break of work the industry part and return to work after elimination the critical condition.
Źródło:: Journal of KONES; 2012, 19, 2; 219-226
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Propulsion characteristics of multi-mode ships in aspect of ships dynamic positioning application
Autorzy:: Herdzik, J.
Powiązania:: https://bibliotekanauki.pl/articles/243980.pdf
Data publikacji:: 2010
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: ships propulsion
propulsion characteristics
multi-mode ships
dynamic positioning systems
Opis:: The dynamic positioning systems require multi-element ship propulsion application. The chosen solutions have decisive effect on propulsion system possibilities, in ship dynamic positioning accuracy also. The automation system has an essential influence on it, because it is an integral part with propulsion system mponsible for this process. The most often ship propulsion solution based on unconventional thrusters driven by electric motor s also. A few independent propulsion systems is essential but it complicates this system, it is limited the number (most often to 4, seldom more up to eight). There are no solutions with traditional rudder and steering gear. These functions take over azimuthing thrusters because they can generale directional thrust force. It must be settle the question of the number of thruster choose and the span angle of azimuthing (most often by thruster turning). In that case it gets the possibilities of ship positioning, they may display as propulsion system characteristics, giving a view on ąuality of positioning process. The last veriflcation is made in real sea conditions when it may test if chosen solution of ship propulsion system fulfils the requirements of positioning accuracy. It was presented the examples of multi-mode ship propulsions and parameters of theirs propulsion plants.
Źródło:: Journal of KONES; 2010, 17, 3; 127-134
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: The application of the BSSD Iono-Free linear combination method in the processing of aircraft positioning
Autorzy:: Ćwiklak, Janusz
Grzegorzewski, Marek
Krasuski, Kamil
Powiązania:: https://bibliotekanauki.pl/articles/247076.pdf
Data publikacji:: 2019
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: GPS system
aircraft positioning
BSSD Iono-Free linear combination
air navigation
Opis:: The article presents the results of research into the use of the differentiation technique of BSSD (Between Satellite Single Difference) observations for the Iono-Free LC combination (Linear Combination) in the GPS system for the needs of aircraft positioning. Within the conducted investigations, a positioning algorithm for the BSSD Iono-Free LC positioning method was presented. In addition, an experimental test was conducted, in which raw observational data and GPS navigation data were exploited in order to recover the aircraft position. The examination was conducted for the Cessna 172 and the on-board dual-frequency receiver Topcon HiperPro. The experimental test presents the results of average errors of determining the position of the Cessna 172 in the XYZ geocentric frame and in the ellipsoidal BLh frame. Furthermore, the article presents the results of DOP (Dilution of Precision) coefficients, the test of the Chi square internal reliability test and the HPL and VPL confidence levels in GNSS precision approach (PA) in air transport. The calculations were performed in the original APS software (APS Aircraft Positioning Software) developed in the Department of Air Navigation of the Faculty of Aeronautics at the Polish Air Force University.
Źródło:: Journal of KONES; 2019, 26, 3; 15-21
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Implementation the GLONASS system in aeronautical application
Autorzy:: Ćwiklak, J.
Krasuski, K.
Powiązania:: https://bibliotekanauki.pl/articles/246602.pdf
Data publikacji:: 2018
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: Remote Maintenance System
air navigation
GLONASS
accuracy
Single Point Positioning method
Opis:: The article determines the accuracy of positioning of the aircraft with the use of a satellite system GLONASS. In addition, the SPP (Single Point Positioning) absolute positioning method was utilized in research test in article. Research test was carried out in the new software APS (Aircraft Positioning Software), used for precise GPS/GLONASS satellite positioning in air navigation. The article describes the research method and presents mathematical formulas of the SPP positioning method. In the research test, the positioning accuracy of the Cessna 172 aircraft was obtained based on comparison of results between APS and RTKLIB software. The difference of Cessna 172 aircraft coordinates in the XYZ geocentric frame between the APS and RTKLIB solution is between -7 m to +6 m. The research material developed in the article comes from an aeronautical experiment carried out with the Cessna 172 aircraft for the EPDE military airport in Deblin.
Źródło:: Journal of KONES; 2018, 25, 3; 121-128
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Benchmarking for robust positioning in e-safty applications on road networks
Sygnał referencyjny w zastosowaniu do e-safety w sieciach drogowych
Autorzy:: Pawelski, Z.
Pałczyński, T.
Pfister, J.
Powiązania:: https://bibliotekanauki.pl/articles/244840.pdf
Data publikacji:: 2008
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: system nawigacji satelitarnej
pozycjonowanie inercyjne
aparatura badawcza do określania pozycji pojazdu
inteligentne systemy transportowe
Global Positioning System
inertial positioning
vehicle position testing equipment
intelligent transport systems
Opis:: At this paper there were described properties of powertrain with diesel engine and CVT transmission. At this system, engine load is not directly proportional to acceleration pedal position. Position of this pedal is only interpreted, as the driver will, about demanded vehicle speed, and the way of achievement of it (dynamic, economic drive) in other word strategy choose. Nowadays ecologic conditionings, it means EURO 3,4,5 standards, requires from drive strategies to be ecologic. Decision of shift value and engine load (proportional to fuel dose, 100% for maximal dose) is elaborated at primary controller, in spite of driver, enabling economic and ecologic powertrain work. CVT transmission introducing additional degree of freedom to powertrain facilitate above steering strategies realization. Presented system has possibility, within the framework of possessed degrees of freedom, the realization of the modes of economic drive or dynamic drive. Assuming given acceleration in vehicle impetus gaining cycle, system is in possession of only one degree of freedom (the point of the constant angular engine speed) limiting the performance of system in optimum areas (proportional participation of PHASE II in all vehicle impetus gaining cycle). Advantages resultant from the above mentioned control method are particularly visible in the vehicle impetus gaining cycle, to the speed of 15 m/s, characteristic for the municipal conditions. For proposed control variant with „test 150" one is observing the lowering of the fuel expenditure and lowering of toxic elements exhaust emissions. In the case of the emissions, decrease was at the level of 28% in comparison with the worst variant (regarding to this criteria)”test 315”; for cruise expenditure of fuel we obtain decrease about 17% for analogous tests.
W pracy zaprezentowano własności sterowania układu napędowego pojazdu z silnikiem o ZS i przekładnią bezstopniową CVT. W tym układzie, obciążenie silnika nie jest wprost proporcjonalne do położenia pedału przyspieszenia. Położenie pedału przyspieszenia jest interpretowane jako informacja o woli kierowcy, o zadanej prędkości pojazdu i sposobie jej osiągnięcia (jazda dynamiczna, ekonomiczna), czyli wyborze strategii jazdy. Obecne uwarunkowania ekologiczne tj. normy EURO 3,4,5, wymagają by odpowiadające im strategie jazdy były realizowane ekologiczne. Decyzja o wyborze przełożenia i stopniu obciążenia silnika (proporcjonalnym do wielkości dawki oleju napędowego, 100% dla dawki maksymalnej) jest podejmowana w sterowniku nadrzędnym, poza kierowcą, pozwalając ostatecznie na ekonomiczną i ekologiczną pracę całego układu napędowego. Przekładnia CVT wprowadzając do układu napędowego dodatkowy stopień swobody ułatwia realizację w/w strategii sterowania. Prezentowany układ ma możliwość, w ramach posiadanych stopni swobody, realizacji trybów jazdy ekonomicznej czy dynamicznej (tabela 2 próba 150 i 315). Przyjmując zadane przyspieszenie w cyklu rozpędzania pojazdu, układ posiada tylko jeden stopień swobody (punkt stałej prędkości kątowej silnika) ograniczający pracę układu w obszarach optymalnych. (udział procentowy FAZY II w całym cyklu rozpędzania). Korzyści wynikające z powyższego sposobu sterowania są szczególnie widoczne w fazie rozpędzania pojazdu, do prędkości 15 m/s, charakterystycznej dla warunków miejskich. Dla proponowanego wariantu sterowania z „próbą 150" obserwuje się obniżenie zużycia paliwa a także toksycznych składników spalin. W przypadku emisji spadek ten wyniósł 28% w porównaniu do najgorszej pod względem tego kryterium wariantu tj. „próby 315"; dla przebiegowego zużycia paliwa uzyskujemy zmniejszenie o 17% dla analogicznych prób.
Źródło:: Journal of KONES; 2008, 15, 4; 455-463
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Challenges of ship propulsion systems during DP operations
Autorzy:: Herdzik, I.
Powiązania:: https://bibliotekanauki.pl/articles/247849.pdf
Data publikacji:: 2012
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: propulsion system
challenge
dynamic positioning operation
safety of propulsion system
energy storage devices
Opis:: Ship propulsion configurations with dynamic positioning systems are commonly used as diesel-electric. In particular, situations for ship transfer on longer distances may be used conventional mechanical propulsion system with controllable pitch propeller. Combination of mechanical and electric propulsion system called hybrid propulsion is met as well, where the thrusters of DP systems are driven through the gear by mechanical engine or electric motor independent or both. For the sake of the necessity of limitation of total installed power on the ship may occurred problems with power distribution between the ship propulsion and industry part. It will especially concern those situations when we need to keep power supply to the industry part and there is a necessity to increase the power delivered to ship propulsion part for the purpose of keeping the ship position or heading. The primary task of power management system (PMS) is blackout prevention in ship energetic network and so power distribution to overcome critical conditions of it. Temporarily it may occur the worsening of positioning operation accuracy without any critical situations of industry part. The possibility of momentary overloading of energetic network is primary condition of safety. The critical duration of overloading is one minute. This is indispensable time for increasing the accessible power in the energetic system through switching on the next genset to work. It is a necessity of quick analysis in critical conditions to value what key-actions ought to do in the aim of overcoming emergency situations. The next one is a usage of energy storage devices. It is possible through AC/DC conversion. It was tried to find solutions of equalization the load of gensets to the ship electric energy demand.
Źródło:: Journal of KONES; 2012, 19, 2; 211-217
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: The magnetic field curvature correction algorithm dedicated for helmet mounted cueing systems
Autorzy:: Adamski, M.
Szelmanowski, A.
Powiązania:: https://bibliotekanauki.pl/articles/949523.pdf
Data publikacji:: 2018
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: transport
avionics
helmet-mounted cueing systems
errors of the angular positioning
magnetic field measurement
flat coil profile modelling
Opis:: The article presents the new built in Poland helmet mounted cueing system NSC-1 Orion with a magnetic method, dedicated to the multi-purpose helicopters W-3PL Gluszec. This system uses the magnetic field generated by the system of three mutually orthogonal electric coils. The principle of operation of this system is described and the method of determining the angular position of the pilot's helmet relative to the helicopter's cabin using the reference magnetic field and the directional cosines matrix are discussed. Electrical flat coils, constructed in the Polish Air Force Institute of Technology (AFIT), generating a magnetic field with curved symmetry axis characteristics, causing errors in determining the angular position of the pilot's helmet are shown. As a way to minimize these errors, an original proprietary algorithm for correcting the negative impact of the magnetic field curvature generated by the on-board system has been presented. Mathematical relations describing the presented correction process as well as selected results of simulation and experimental investigations in the area of inaccuracy of the "before" and "after" systems of applying the developed algorithm were given. Inaccuracies determined from computer simulations of the developed mathematical relations were compared with experimental data from magnetic field measurements using the integrated three-axis sensor ADIS-16405, used in the laboratory of the AFIT Avionics Division for helmet control of the angular position of the moving observation and sighting head and reflector-search light.
Źródło:: Journal of KONES; 2018, 25, 2; 15-30
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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