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Wyszukujesz frazę "transportation control" wg kryterium: Temat


Wyświetlanie 1-3 z 3
Tytuł:
The application of ant algorithm in the assignment problem of aircrafts to stops points on the apron
Autorzy:
Gołda, P.
Izdebski, M.
Szczepański, E.
Powiązania:
https://bibliotekanauki.pl/articles/245325.pdf
Data publikacji:
2018
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
air transportation
air traffic control
aircraft operation
airport
Opis:
The article refers to the problem of assigning the aircrafts to stops points on the apron. The aim of this paper is to develop the algorithm, which will be used to this assignment. The assignment problem of aircrafts to stops points is the complex decision problems, which refer to the problems of designating the minimal path in the graph. The assignment model was described, i.e. decision variables, constraints and the criterion function. Decision variables take the binary form and determine the connections between the elements of infrastructure of the apron, i.e. touchdown points, intermediate points and stop points. Constraints take into account the number of aircrafts in the given period, the number of unoccupied stop points. The criterion function determines the minimum driving time of the aircraft on the apron. In order to designate the routes in international transport the heuristic algorithm, i.e. ant algorithm was developed. The steps of building this algorithm were presented. This algorithm was verified in the C# programming language. The results generating by the presented algorithm were compared with the results generating by the random algorithm.
Źródło:
Journal of KONES; 2018, 25, 4; 479-487
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Modeling a negotiation process between aircraft using petri nets
Autorzy:
Żuchowska, Daria
Stelmach, Anna
Powiązania:
https://bibliotekanauki.pl/articles/27315982.pdf
Data publikacji:
2023
Wydawca:
Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:
air traffic control
ICT systems
ASAS
Petri Nets
transportation systems
kontrola ruchu lotniczego
systemy ICT
sieci Petriego
systemy transportowe
Opis:
New air traffic control ideas are sought. Many studies point out the delegation of the responsibility for ensuring separation from air traffic controllers to the aircraft crews, but it should be assumed that the transition from centralized to decentralized air traffic control will occur in stages. It is, therefore, necessary to ensure effective communication between conflicting aircraft and to define the negotiation process between aircraft. The concept of the process of negotiation and communication between aircraft in conflict using a monotonic concession protocol is presented. The proposed solution was modeled using a Petri Net, which allowed us to analyze all the dependencies present in the system. The analysis allowed us to evaluate the method in the context of safety. The conducted research showed that, under the assumed conditions, the negotiation method allows obtaining the desired effect of negotiations while maintaining an adequate level of safety.
Źródło:
Zeszyty Naukowe. Transport / Politechnika Śląska; 2023, 121; 267--285
0209-3324
2450-1549
Pojawia się w:
Zeszyty Naukowe. Transport / Politechnika Śląska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Conflict-free trajectory planning based on the model predictive control theory
Autorzy:
Han, Yun-xiang
Huang, Xiao-qoing
Powiązania:
https://bibliotekanauki.pl/articles/223811.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
civil aviation
air transportation
aircraft
air traffic control
separation
trajectories
optimization
model predictive control
lotnictwo cywilne
transport powietrzny
samolot
kontrola ruchu lotniczego
separacja
trajektorie
optymalizacja
sterowanie predykcyjne
Opis:
Model Predictive Control (MPC) is a model-based control method based on a receding horizon approach and online optimization. A key advantage of MPC is that it can accommodate constraints on the inputs and outputs. This paper proposes a max-plus general modeling framework adapted to the robust optimal control of air traffic flow in the airspace. It is shown that the problem can be posed as the control of queues with safety separation-dependent service rate. We extend MPC to a class of discrete-event system that can be described by models that are linear in the max-plus algebra with noise or modeling errors. Regarding the single aircraft as a batch, the relationships between input variables, state variables and output variable are established. We discuss some key properties of the system model and indicate how these properties can be used to analyze the behavior of air traffic flow. The model predictive control design problems are defined for this type of discrete event system to help prepare the airspace for various robust regulation needs and we give some extensions of the air traffic max-plus linear systems.
Źródło:
Archives of Transport; 2016, 37, 1; 77-85
0866-9546
2300-8830
Pojawia się w:
Archives of Transport
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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