Wszystkie pola: front beam - Katalog OPAC zbiorów

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Tytuł:: Adaptive driving beam - new concept of vehicle front - lighting
Autorzy:: Targosiński, T.
Powiązania:: https://bibliotekanauki.pl/articles/949495.pdf
Data publikacji:: 2010
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: road transport
road illumination
headlamps
traffic safety
Opis:: Vehicle front-lighting is essential for road traffic sofety during night-time. It is a subject of continuous changes following the progress in technology. After the introduction of gas-discharge (xenon) light sources in 90-ties of the last century, in the recent years there were adaptive front-lighting systems (AFS) allowed to be used. This kind of front-lighting with significant complexity of functions and control, relatively limited lighting improvement and high costs, does not spread as quickly as it was predicted. For these reasons, the last two years saw automatic and adaptive driving beam offered, with electronic control based on the video camera image processing. It is done referring to the present in force, static technical requirements. But the automatic control o f these lights as well as reactions of other roads users could have wide spread implications for the night-driving comfort and safety. On one hand it should create much better road illumination, as it leads in many cases to road illumination closer to the standard driving beam, when at present the passing beam would be used. On the other hand, there is a significant risk of glaring other road users as a result of their improper recognition or erroneous activation/deactivation of these lights. It could be a result of imperfections in sensors, algorithm and devices controlling light beam changes. This could lead to lack of light reaction and glaring of improperly indentifled objects e.g. bicycles, pedestrians and to illumination deterioration in response to retro-reflectors (road signs). This paper describes most important issues concerning advantages and risks of introducing this kind of lights to the market and ways of defining requirements.
Źródło:: Journal of KONES; 2010, 17, 3; 453-460
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Light beam control system of trams head lights
Autorzy:: Stypułkowski, K.
Tomczuk, P.
Powiązania:: https://bibliotekanauki.pl/articles/243858.pdf
Data publikacji:: 2008
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: transport
tram
simulation
lighting distribution
tram lighting
front lighting
Opis:: Researches in the field of technology of modern sources of light have called for the introduction and application of a few basic hardware solutions of automatic correction systems of light beam position in the vertical and horizontal axes of a vehicle. Application of Adaptive Frontlighting Systems in motor vehicles has made it possible to adapt light parameters of head lights and fog lights to the actual situation on the road. The system ensures optimal observation conditions of a vehicle's foreground. These systems have contributed to the improvement of driving safety and comfort in the conditions of restricted visibility during fogs and precipitation. The authors of the present publication substantiate the need of introducing the solution of the foreground lighting of a vehicle, which has already proved effective for motor vehicles, taking into account the specificity of movement of a tram which is one of the main means of transport within the framework of urban public transport system. The article presents the current standardization requirements concerning head lights for the abovementioned means of transport. The results of laboratory photometric measurements for currently used optical light systems, as well as the results of simulation researches of the foreground lighting of a tram in street traffic have been demonstrated. Moreover, the article presents the analysis of potential solutions for the foreground lighting of a traction vehicle with the application of automatic system of light beam control. The proposal of a method of light beam choice taking into consideration specific movement conditions of a tram has been presented. Attention has been paid to the expected exploitation and economic effect of the application of the system for a company promoted to be used in a tram, as well as to the improvement of working conditions of a tram driver and the influence on other public transport users connected with travel safety and comfort. The publication emphasizes the merits of the proper use of already existing lighting solutions and their introduction into street traffic system of a tram. The improvement of the quality of the foreground lighting of a tram significantly increases the safety and comfort of all urban street traffic users.
Źródło:: Journal of KONES; 2008, 15, 2; 475-482
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Adaptive control system of light beam position of trams head lights
Autorzy:: Stypułkowski, K.
Powiązania:: https://bibliotekanauki.pl/articles/242133.pdf
Data publikacji:: 2009
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: transport
tram
simulation
lighting distribution
tram lighting
front lighting
Opis:: The article proposes and discusses the application of AFS system in trams. The author of the present publication substantiates the need of introducing the solution of foreground lighting of a vehicle, which has already proved effective for motor vehicles, taking into account the specificity of movement of a tram being one of the main means of transport within the framework of urban public transport system. Using the results of laboratory photometric measurements for currently used optical light systems of tram 's head lights, a proposal for the use of new light beams has been presented. The method of realization of adaptive system of light beam control of tram 's head lights has also been demonstrated. In relation to the current photometric requirements in standardization guidelines concerning head lighting of a tram, directions ofchanges have been proposed. Light beam shape of main lights in tram 's foreground defined by isolux range, proposal of automatic light beam control system of a tram, proposal of arrangement of system reflectors within the area of tram car's front are presented in the paper.
Źródło:: Journal of KONES; 2009, 16, 2; 433-439
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Lighting of trams foreground with the use of head and low beam lights – research
Autorzy:: Tomczuk, P.
Powiązania:: https://bibliotekanauki.pl/articles/245571.pdf
Data publikacji:: 2009
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: transport
tram
simulation
lighting distribution
tram lighting
front lighting
Opis:: Recent progress within the area of front lighting of motor vehicles makes it possible to implement some technical solutions in other types of vehicles. High quality of front lighting is a factor required not only in motor vehicles. The article shall present the current state of front lighting of trams and qualitative analysis shall be presented of currently used light beams. The emphasis put on the quality of motor vehicle projectors, their constant development and application ofnew kinds of light sources, as well as application ofadvanced systems ofautomatic light beam direction does not translate into application ofthese solutions in tram vehicles. Safe movement of a trach vehicle is conditioned by the quality and state of its main lighting. Appropriate distribution of a light beam plays a significant role in the perception of luminous sensations from a vehicle's foreground. It ensures a proper assessment of behaviour of other road traffic participants and conditions proper visibility from a tram driver's seat. The analysis of tram line lighting shall be conducted on the basis of real photometric measurement data with the use of calculation programme having an advanced model of foreground lighting of the vehicle at its disposal. Lighting recommendations shall be presented taking into account the characteristics of light beams used in trams
Źródło:: Journal of KONES; 2009, 16, 3; 439-446
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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