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Wyszukujesz frazę "Łubkowski, P." wg kryterium: Autor


Wyświetlanie 1-4 z 4
Tytuł:
Assessment of video quality in the process of events identification in the transportation systems
Autorzy:
Łubkowski, P.
Laskowski, D.
Powiązania:
https://bibliotekanauki.pl/articles/393201.pdf
Data publikacji:
2018
Wydawca:
Polskie Stowarzyszenie Telematyki Transportu
Tematy:
surveillance services
identification
transportation systems
usługi nadzoru
identyfikacja
systemy transportowe
Opis:
The process of monitoring vehicle traffic and detecting traffic incidents and traffic obstructions requires access to information from sensors located at various points of monitoring and data acquisition systems constituting elements of contemporary Intelligent Transportation Systems (ITS). Unmanned aerial vehicles (UAVs) are increasingly becoming an element of ITS used in reconnaissance, preventive or rescue operations. Ensuring the efficiency of transportation in conditions of increased traffic requires providing users with multimedia information about: meteorological conditions prevailing on roads, traffic, current events and difficulties, and information on the availability of parking spaces. In each of the mentioned cases, the reliability and quality of information provided with the use of UAVs is an extremely important issue. Therefore, the provision of video surveillance services with a predictable level of quality and reliability is an important challenge for UAVs practical implementations. Thus, the fundamental research problem considered in the publication is the analysis of the impact of environmental and technical parameters on the quality and reliability of the UAVs video monitoring service provided in a real operating environment.
Źródło:
Archives of Transport System Telematics; 2018, 11, 2; 24-29
1899-8208
Pojawia się w:
Archives of Transport System Telematics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Mobile and reliable data access to telematics data systems
Autorzy:
Laskowski, D.
Lubkowski, P.
Powiązania:
https://bibliotekanauki.pl/articles/393409.pdf
Data publikacji:
2016
Wydawca:
Polskie Stowarzyszenie Telematyki Transportu
Tematy:
data transfer
mobile access
reliability
telematics system
BYOD
transfer danych
dostęp mobilny
niezawodność
system telematyczny
Opis:
The perspective of use the Bring Your Own Device (BYOD) model in telematics environment which ensure a reliable access to network resources is presented in the paper. The BYOD model is a future-proof solution which applies in areas related to database systems. It provides the user wireless access with the use of 802.11n/ac/d standard, mobile access via WiMax-2 or LTE-A networks and wired with the use of Gigabit Ethernet technology. The research network which reflects the events representative for the telematics environment was established for the verification of functional capabilities of BYOD model. Services that offer a user the synchronization of files between mobile terminals and data server were implemented in testbed. A detailed set of test scenarios and criteria for assessment of the declared properties model BYOD were also defined. The article presents the results of research that confirm the use of this type of networking solutions for mobile and reliable access to data in a telematics environment.
Źródło:
Archives of Transport System Telematics; 2016, 9, 2; 31-34
1899-8208
Pojawia się w:
Archives of Transport System Telematics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Supporting the monitoring services reliability in transportation systems – antropo-technical approach
Autorzy:
Laskowski, D.
Łubkowski, P.
Powiązania:
https://bibliotekanauki.pl/articles/393976.pdf
Data publikacji:
2015
Wydawca:
Polskie Stowarzyszenie Telematyki Transportu
Tematy:
monitoring system
data acquisition systems
service reliability
system exploitation
system monitoringu
zbieranie danych
niezawodność usług
eksploatacja systemu
Opis:
Process of ensuring the security of citizens, objects and material goods requires access to the information from sensors located in diff erent points of monitoring and data acquisition systems. Th ey are a widely used in administration of carfleet or the visualization of selected functions of transport processes. However, transmission of data from multiple video sensors may lead to the degradation of video quality and even to lack of identification capabilities. As a result, the overall service reliability can be decreased. The process of the system exploitation can determine the reliability of the video monitoring services as well. This process includes the technical object (hardware and soft ware) and the man (operator) who exploits the system under certain environmental conditions (external and internal) and represents so called antropo-technical approach in which the operating requirements are taken into consideration (particularly related to reliability). The paper presents components elaborated for maintenance of reliable video monitoring services as well as the results of selected tests showing its efficiency. Proposition of comprehensive metrics for assessing the reliability of exploitation of video monitoring system, which takes into account antropo-technical approach is presented as well.
Źródło:
Archives of Transport System Telematics; 2015, 8, 4; 23-28
1899-8208
Pojawia się w:
Archives of Transport System Telematics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Selected Issues of QoS Provision in Heterogenous Military Networks
Autorzy:
Hauge, M.
Landmark, L.
Łubkowski, P.
Amanowicz, M.
Maślanka, K.
Powiązania:
https://bibliotekanauki.pl/articles/226154.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
E2E QoS
connectivity
routing
heterogenous networks
Opis:
Tactical ad-hoc networks are evolving today towards complex heterogeneous networks in terms of architecture, protocols and security. Due to the difference in network resources and reliability, end-to-end quality of service provisioning becomes very challenging. If we also take into account communication issues such as unpredictable connectivity, preferential forwarding for special traffic classes, intermittency due to node or communication link failure, the problem is further aggravated. In this article, we examine the major challenges that must be solved in order to provide efficient QoS provisioning in the heterogeneous network. Finally we describe QoS-aware mechanisms for inter-domain and intra-domain heterogeneous networks, also including real-time services provision in highly mobilr environments.
Źródło:
International Journal of Electronics and Telecommunications; 2014, 60, 1; 7-13
2300-1933
Pojawia się w:
International Journal of Electronics and Telecommunications
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-4 z 4

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