Temat: traffic parameters - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Road traffic parameters measuring system with variable structure
Autorzy:: Burnos, P.
Gajda, J.
Marszałek, Z.
Piwowar, P.
Sroka, R.
Stencel, M.
Żegleń, T.
Powiązania:: https://bibliotekanauki.pl/articles/220542.pdf
Data publikacji:: 2011
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: traffic parameters measurement
weigh-in-motion systems
vehicle classification
Opis:: Systems of road traffic parameters measurement play a key role in the process of road traffic control, its supervision as well as in gathering and processing information for statistical purposes. Expectations of users of such systems mainly concern automation and provision of measurement continuity, possibility of selection of the measured road traffic parameters and high accuracy along with reliability of obtained results. In order to meet the requirements set for such systems, at the Department of Instrumentation and Measurement of the AGH University of Science and Technology in Cracow a new prototype system of road traffic parameters measurement - Traffic-1 - has been constructed. The innovativeness of the solution is manifested in the structure of the system that can be modified by the user adequately to current measurement needs and in the used algorithms of signals processing. The work contains a brief description of the constructed system with particular focus on the used innovations that are the result of many years of research work of the designers.
Źródło:: Metrology and Measurement Systems; 2011, 18, 4; 659-666
0860-8229
Pojawia się w:: Metrology and Measurement Systems
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: A new method of inductive sensors impedance measurement applied to the identification of vehicle parameters
Autorzy:: Marszałek, Z.
Sroka, R.
Stencel, M.
Powiązania:: https://bibliotekanauki.pl/articles/221039.pdf
Data publikacji:: 2011
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: inductive loop sensor
substitute parameters
magnetic profile
measurement of traffic parameters
Opis:: Inductive loop sensors are widely used for detection of presence, measurement of parameters as well as classification of vehicles. Vehicle classification may be performed based on their magnetic profiles. The magnetic profile is a signal which is proportional to the resultant of an impedance change of the sensor, caused by the measured object (the changes are minor - of the order of 1%). Generator and bridge circuits are most commonly used as conditioning circuits for such sensors. As a result we can obtain one output signal proportional to total changes of sensor parameters (R and L). In this paper, a modified bridge circuit that allows independent measurement of the components (R and L) of the sensor's impedance, has been proposed. With that provided, it is possible to receive broader information on the object, which allows higher classification resolution. This paper provides the concept of a circuit, model testing results, processing algorithms used and the test results of a real circuit.
Źródło:: Metrology and Measurement Systems; 2011, 18, 1; 69-76
0860-8229
Pojawia się w:: Metrology and Measurement Systems
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: System o zmiennej strukturze do pomiaru parametrów ruchu drogowego
A flexible structure system for measuring road traffic parameters
Autorzy:: Gajda, J.
Marszałek, Z.
Piwowar, P.
Sroka, R.
Stencel, M.
Żegleń, T.
Powiązania:: https://bibliotekanauki.pl/articles/157763.pdf
Data publikacji:: 2010
Wydawca:: Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:: systemy pomiarowe
parametry ruchu drogowego
systemy WIM
measurement systems
road traffic parameters
WIM systems
Opis:: W pracy przedstawiono system pomiarowy o zmiennej strukturze umożliwiający pomiar różnorodnych parametrów ruchu drogowego. Poprzez prostą zmianę struktury użytkownik może dostosować właściwości systemu do swoich aktualnych potrzeb. System pozwala na przeprowadzenia zarówno prostych pomiarów obejmujących liczbę pojazdów, szybkość i długość każdego z nich oraz czas pojawienia się na stanowisku pomiarowym, jak również pomiarów bardziej złożonych jak np. pomiar nacisku osi oraz masy całkowitej pojazdu poruszającego się z szybkością, nawet do 90 km/h.
The paper describes a system designed for measurements of road traffic parameters. Its flexible structure allows tailoring the system features to current user's needs. The designed and realised system allows for measurement of different sets of traffic parameters such as number of vehicles, individual vehicle speed and length, as well as the time of passing the measurement site, up to more advanced weighing in motion. Due of compact form and alternative supply mode (230 V AC and 12 V DC), the system is fully portable. The performed field tests confirmed its usability. The uncertainty of the measured parameters corresponds to this available in commercially offered systems which usually do not allow their structure to be tailored. The innovations used in the system are: implementation of the individual vehicle speed estimation based on the magnetic signature from a single loop detector, application of a self-balancing circuit cooperating with the inductive loop detector, the axle detecting system based on the signal from a narrow (10 cm) inductive loop detector, auto-calibration procedure of the WIM system - a new, high-resolution vehicle classification algorithm.
Źródło:: Pomiary Automatyka Kontrola; 2010, R. 56, nr 9, 9; 1039-1042
0032-4140
Pojawia się w:: Pomiary Automatyka Kontrola
Dostawca treści:: Biblioteka Nauki

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