Zobrazeno 1 - 10
of 45
pro vyhledávání: '"Piotr BOJARCZAK"'
Publikováno v:
Transport Problems, Vol 18, Iss 1, Pp 129-141 (2023)
A number of physical methods are used to survey railway track ballast to assess its degradation as a function of deposition. Simulation tests on track models are also conducted. These testing methods, which are generally labour-intensive and expensiv
Externí odkaz:
https://doaj.org/article/5dab1b83ea5141ac96747656c6f27ba9
Publikováno v:
Applied Sciences, Vol 14, Iss 7, p 2811 (2024)
The amount of freight transported by rail and the number of passengers are increasing year by year. Any disruption to the passenger or freight transport stream can generate both financial and human losses. Such a disruption can be caused by the rail
Externí odkaz:
https://doaj.org/article/f22244cd6d5e4dc3b01eb33e944e14b2
Autor:
Piotr Bojarczak, Waldemar Nowakowski
Publikováno v:
Sensors, Vol 21, Iss 12, p 4065 (2021)
The article presents a vision system for detecting elements of railway track. Four types of fasteners, wooden and concrete sleepers, rails, and turnouts can be recognized by our system. In addition, it is possible to determine the degree of sleeper b
Externí odkaz:
https://doaj.org/article/147ae235639848df8331efce1ad3a8bb
Autor:
Piotr Lesiak, Piotr Bojarczak
Publikováno v:
Open Engineering, Vol 11, Iss 1, Pp 339-348 (2021)
The article uses images from Unmanned Aerial Vehicles (UAVs) for rail diagnostics. The main advantage of such a solution compared to traditional surveys performed with measuring vehicles is the elimination of decreased train traffic. The authors, in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::778f0b445c2d49cf0232a21c74e39941
https://doi.org/10.1515/eng-2021-0033
https://doi.org/10.1515/eng-2021-0033
Autor:
Piotr Bojarczak, Zbigniew Lukasik
Publikováno v:
Advances in Electrical and Electronic Engineering, Vol 6, Iss 2, Pp 86-89 (2007)
This paper presents comparison study of two different deblurring methods: Wiener filter and TSVD decomposition. Wiener filter is a method giving the best results when variance of the noise incorporated in blurring process is known a priori. In TSVD d
Externí odkaz:
https://doaj.org/article/a70284ccdbf74b648db62823a6ad2a3e
Publikováno v:
AUTOBUSY – Technika, Eksploatacja, Systemy Transportowe. 24:223-228
Railway control devices are responsible for the safe and efficient operation of railway traffic. Despite the continuous development of these devices, like other technical solutions, they are being damaged. However, since railway control devices are s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::35ebaa139227e7dc00c8c3a8893edb06
https://doi.org/10.24136/atest.2019.155
https://doi.org/10.24136/atest.2019.155
Publikováno v:
2018 International Conference on Recent Innovations in Electrical, Electronics & Communication Engineering (ICRIEECE).
The basic function of railway automation systems is allowing a safe and fluent railway traffic control. Along with the technical progress these systems are constantly being improved. The process of their development at the moment is influenced by the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e598919fa444aa39c28b4bf9acbcda91
https://doi.org/10.1109/icrieece44171.2018.9008871
https://doi.org/10.1109/icrieece44171.2018.9008871
Publikováno v:
Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering ISBN: 9783319937090
National Information Processing Institute
National Information Processing Institute
A basic requirement which needs to be fulfilled by railway traffic control systems is to ensure a high level of safety. That is why, CENELEC (European Committee for Electrotechnical Standardization) norms include RAMS (Reliability, Availability, Main
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b3dd93ec6ac43a5add01c22d45009218
https://doi.org/10.1007/978-3-319-93710-6_5
https://doi.org/10.1007/978-3-319-93710-6_5
Publikováno v:
2017 International Conference on Information and Digital Technologies (IDT).
First of all, the railway traffic control process should ensure the safety. One of the current research areas is to ensure the security of data in the distributed rail traffic control systems using wireless networks. Emerging security threats are the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a927d9f35f54d5b4c0a9358ef083a22c
https://doi.org/10.1109/dt.2017.8024309
https://doi.org/10.1109/dt.2017.8024309
Autor:
Piotr Bojarczak, Waldemar Nowakowski
Publikováno v:
Proceedings of the 15th International Conference on ITS Telecommunications (ITST 2017)
The paper presents an algorithm allowing for automatic detection of squat flaws in railway rails. These flaws can pose a threat to the safety of railway traffic. A Gabor filter bank along with SVM classifier were used in the detection process. The op
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4f8031d7719437c58a8a6ef06fa2bc85
https://doi.org/10.1109/itst.2017.7972229
https://doi.org/10.1109/itst.2017.7972229