Classifications

• • G—PHYSICS
  • G08—SIGNALLING
  • G08G—TRAFFIC CONTROL SYSTEMS
  • G08G1/00—Traffic control systems for road vehicles
  • G08G1/09—Arrangements for giving variable traffic instructions
  • G08G1/095—Traffic lights

Definitions

• the invention relates to a device for a signal transmitter of a traffic signal system with triggered intense light sources, which are autonomously switchable in the switched signal transmitter in the event of sunlight and thus occurring phantom light and emit a pulsating change in luminous intensity with respect to the activated signal lamp of the signal transmitter occurring phantom light covered in such a way that the luminance change is perceptible to the human eye.
• Traffic light systems such as traffic lights
• traffic lights are known in Buchungsberei ⁇ hen, in the traffic of construction sites, at level crossings and the like. indispensable traffic guidance systems to ensure safe and smooth traffic between road users. Due to the great importance which these traffic signal systems have for traffic safety, on the one hand high safety requirements and, on the other hand, also high optical requirements, such as the light intensity, light intensity distribution, maximum phantom light and the contrast aperture. that of the signal lights, so that the respective switching state of the traffic light system can be clearly and unmistakably identified by the traffic participant.
• a phantom light can occur at the signal transmitters, in particular at the traffic signal systems whose signal transmitters are aligned in the direction of the easterly directions south to west, by the incident sunlight into the signal transmitter and the reflective effect of the signal transmitter reflectors on the signal colors is caused.
• This phantom light can be so large at a corresponding angle of incidence of the solar radiation into the signal transmitter, in particular in the case of the green and red signal transmitter, that the road user hardly or not at all approaches the light signal system while standing in front of the traffic signal systems can recognize which SehaltStellung is currently displayed by the traffic signal system.
• DE 29 00 229 proposes a traffic light in which the transparent front side of the traffic light system illuminated from the inside is attached at an angle to the vertical. Such an angular position of the transparent front side affects the the perceived light intensity of the traffic light itself is considerably impaired by the perception and thus the perceptive capacity of the road users, in particular for the higher-ranking lorry drivers and on the other hand.
• honeycomb-shaped metal grid which are ange ⁇ introduced between the light source and the colored cover.
• ange ⁇ introduced between the light source and the colored cover.
• the LED panes are affected in the failure of individual LEDs over a large area, as a result of series-connected LED's already alonged ⁇ fallen LED to a segmental failure of the LED Slice leads.
• the high light intensity of the LEDs can also be perceived as an unpleasant glare in diffuse light conditions for the eye.
• the LEDs have recently been covered with a black grid foil, in order to achieve a uniform light emission and a reduction of the luminance on the emitting object in this way.
• This additional device which can be provided independently and without direct intervention in the technical safety requirements of a traffic signal system in a signal transmitter and can also be retrofitted, has the effect that the eye, owing to its physiological structure, is already underlaid even at low luminance ⁇ distinguished a constantly changing luminance, which is radiated gleich ⁇ time with a linear luminance, perceives faster than the linearly emitted light.
• the phantom light effect on the switched signal transmitter can be clearly recognized by the road user with an additional device formed in this way, it has also been shown that the prescribed field diameter is determined by the intended field illumination LED is impaired and a partially cyclically blin ⁇ kender section in the signal generator is not perceived in each case as an indication that the signal generator is the currently switched signal generator.
• Object of the present invention is therefore to improve the known from DE 202 12 792.3 self-sufficient accessory for a signal generator to the effect that the field diameter of a signal generator as a result of zus ⁇ union intensive bulbs remains unaffected, the LichtStärkeverannon the cyclically switched intense bulbs in the signal generator is improved to clearly highlight the currently switched traffic phase and that a glare effect is excluded by the intense bulbs at a lower occurring phantom light.
• the intense illuminants such as LED's
• a signal generator circumferentially and spaced are arranged on a transparent ring, wherein the distance between adjacent intense Leucht ⁇ on the transparent ring in dependence the Ab ⁇ beam angle is set in such a way that the Lichtke ⁇ gel of each adjacent intense bulbs are radiated über ⁇
• the transparent ring is set with the intense bulbs within a signal generator and behind the cover in the region of the largest field diameter
• the luminosity of Intensive Leuchtmit ⁇ tel as a function of the intensity of solar radiation is dimtnbar and the intense light sources of Signalge ⁇ ber in combination with a traffic signal system depending on the switched signal generator are controlled separately via a common control circuit.
• the transparent ring on which the intensive illuminants are attached ensures that the traffic signal system operates normally during normal operation, ie when no phantom light is present occurs and the intense light sources are not activated, the field diameter of the signal generator uneinge ⁇ limits according to the optical requirements that are placed on a signal generator, is illuminated. Polg ⁇ Lich impairment of the traffic signal system can be excluded by the device.
• the road user can perceive the current switching position of the traffic light system at an early stage even when the phantom light effect occurs, and adjust its traffic behavior accordingly.
• the luminous intensity of the intensive illuminants is continuously adapted to the phantom light effect that occurs and thus uniformly outshines the light emission of the signal generator. Consequently, a glare effect due to the ak- tivated intense bulbs are excluded and the light field diameter is optically gleichzeßi ⁇ ger acted upon.
• the common control circuit is supplied electrically independently and is designed for each signal generator with a separate control channel which is activated by a sensor which is assigned to the corresponding signal generator.
• the device can be designed circuitically with a very low cost and only the intensive bulbs in Signalge ⁇ are supplied over self-sufficient electrically, which are assigned to the signal generator of the respective switched traffic phase. Ei ⁇ ne faulty circuit in the composite of the traffic signal is thus virtually impossible.
• the control circuit of the intensive illuminants which is independent and self-sufficient from the light signal system control, ensures the traffic-light function of the actual traffic light system even if the electrical supply to the control circuit for the intensive light bulbs fails. Consequently, the device according to the invention can be provided without intervention in the actual function of a traffic signal system and without major technical effort and can also be economically preheated to already installed traffic signal systems with a reflector.
• control circuit is self-sufficient powered by a solar panel, that on the Lichtsignal ⁇ plant is arranged in such a way that the active area of the solar panel is aligned to the radiation direction of the signal generator.
• the intense bulbs are dimmed depending on the energetically converted solar radiation in the solar panel.
• the energetically umge ⁇ from the solar panel solar radiation is supplied directly and without buffer memory of the control circuit, so that the intensive Leucht ⁇ medium are always supplied only with the flowing current that is currently generated energetically due to the radiation intensity in the solar panel.
• the light intensity of the intensive illuminants can be dimmed in a simple manner as a function of the effective radiation intensity of the sun to the traffic signal system and thus adjusted to the radiation intensity of the phantom light occurring at the signal transmitter.
• the control circuit of the intensive lighting means is supplied independently and independently of the power supply of the traffic signal system circuit.
• the intense illuminants are advantageously diminished by means of a dimmer circuit which analogously processes a detected solar radiation from a radiation sensor arranged at the light signal system in radiation direction of the signal generators is.
• This embodiment variant of the device consequently requires no solar panel for the autonomous functioning of the device and is therefore particularly suitable for retrofitting traffic light systems which are already installed or for mobile traffic signal systems in which there is a risk that the solar panel will fail Transport or by a wanton destruction, such as not to be excluded Randalismus, useless or destroyed.
• a traffic signal 1 as a traffic light in the side view
• FIG. 2 shows a front view of FIG. 1 with a ge opened signal generator
• FIG. 3 shows a section through a traffic signal system according to FIG. 1, FIG.
• FIG. 6 shows a side view of FIG. 5 with partially shown radiation angles of the intense leuclear means.
• FIGS. 1 to 4 The detailed description of the inventive device is made, for example, on a light signal system 1 shown in FIGS. 1 to 4, in which LED bulbs are preferably used as inert bulbs 6, 6a to 6x, which for simplicity's sake are numbered by the same reference numerals become.
• a traffic signal and traffic safety approved traffic light which, as is generally known, consists of a housing 15 with the signal transmitter 2 for the red signal signal. light, the signal generator 3 for the yellow signal light and the signal generator 4 for the green Signalalli ⁇ ht, which is firmly connected to a support 20.
• the signal generator 2, 3, 4 are in the embodiment shown, each with a sun visor 25; 25 '; 25 '', which cover the sou ⁇ shining cover 12, 12 ', 12'', which is color matched to the ent speaking signal light cover.
• a solar panel 5 is provided, the active side 26 at an angle of> 180 ° to the top of the housing 15 in the emission direction of the Lichtsignalan ⁇ 1 is aligned.
• each signal generator 2, 3, 4 triggered separately by the traffic signal system control is composed of a reflector 18; 18 '; 18 ", the signal lamp 10; 10 '; 10 '' and a corre sponding color cover 12; 12 '; 12 '', which, as shown, separately closes a signal transmitter 2, 3, 4 but can also completely close off the signal system 1, which is arranged in an openable lid 27, which is closed when the lid 27 is closed the reflector 18; 18 '; 18 '' covered.
• the transparent ring 7 Adjacent to the largest luminous field diameter 11 and behind the colored cover 12; 12 '; 12 "of each signal transmitter 2; 3; 4, the transparent ring 7 is fixed on the inner side of the cover 27 by releasable or non-detachable fastening means 28. In the transparent ring 7, the spaced and encircling LED's 6 to 6x are fixed, which are preferably interconnected in parallel.
• Ein ⁇ structures such as honeycomb-shaped metal grid are provided, the cause a multiple reflective effect, thus the luminance of the signal lamp 10; 10 '; 10 '' in the Primabe ⁇ rich metal grid to make more effective effect and to counteract the phantom light in addition.
• the LEDs are fixed circumferentially on the transparent ring 7 at a distance 8 which is determined by the emission angle of the LEDs used in such a way that always the light cones 9, 9 'of adjacent LEDs 6, 6a overlap, thus becoming optically with pulsating LEDs a clearly recognizable circulating pulsating circle around the cover 12, 12 '12' 'generated and at the same time the light emission to cover a phan ⁇ occurring tomlichts to the center of the signal generator 2; 3; 4 improved.
• Each transparent ring 7, which is provided in the signal transmitters 2, 3, 4, is electrically supplied via a common control circuit 13, which is independent of the traffic signal control, as can be seen in FIGS. 3 and 4.
• the control circuit 13 not shown in detail, in which the trigger circuit and / or dimmer circuit is integrated, is designed as a circuit board and has at least for je ⁇ the signal generator 2, 3, 4, via a separate control channel, each of a sensor 19; 19 '; 19 '' is controlled, which is assigned to the corresponding signal generator 2, 3, 4.
• the sensors 19, 19 ', 19'' are preferably photosensors and are spaced from the signal lamp 10; 10 '; 10 '' in the signal generator 2; 3; 4 and are due to the Li ⁇ hwellen 23; 23 '23''of a switched signal lamp 10; 10 '; 10 '' acti ⁇ fourth and close an associated switch 24; 24 '; 24 '' in the electrical supply line between the control Circuit 13 and the LEDs 6 - 6x, the activated Sig ⁇ nalgeber 2; 3; 4 are assigned.
• the electrical supply of the control circuit 13 can be corresponding to the selected embodiment with the Stromversor ⁇ supply 21 via the solar panel 5 or independent of the power supply 22 of the by the transformers 16, 16 '16' 'an ⁇ interpreted light signal system control for the signal lamps 10; 10 '10' 'done.
• the control circuit 13 In the electrical supply of the control circuit 13 via the solar panel 5, the current that is generated by the energetically converted solar radiation, directly, i. oh ⁇ ne memory, the control circuit 13 supplied.
• control circuit 13 In the electrical supply of the control system 13 via the power supply 22 for the actual power system control, the control circuit is supplied by an independent and separate supply line clamped on the terminal board 14 of the power supply, as shown in FIGS. 3 and 4. In this case, in the not Her forth control circuit 13 seen a dimmer circuit vor ⁇ seen. This dimmer circuit is connected to a radiation sensor 17, which is arranged in the emission direction on the housing 15 of the traffic signal system 1.
• This radiation sensor 17 detects the solar radiation acting on the traffic signal system 1 and transmits the ascertained intensity values of the solar radiation to the integrated dimmer circuit in the control circuit 13, where it is analogous to the dimming of the LEDs 6 - 6x in the currently activated signal generator 2, 3, 4 and thus closed Schal ⁇ ter 24; 24 '; 24 '' is processed. Consequently, here too, the luminance and thus the pulsating luminance change of the LEDs 6 - 6x are always dependent on the currently acting solar irradiation on the signal generator 2; 3; 4 and thus adapted more or less strongly occurring phantom light, so that in this case a possible glare can be excluded by the LED's.
• a device designed in this way consequently does not intervene in the actual traffic signal system control and can be additionally provided economically without changing the traffic signal system 1, but can also be retrofitted to already installed traffic signal systems 1.

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• Physics & Mathematics (AREA)
• General Physics & Mathematics (AREA)
• Traffic Control Systems (AREA)
• Optical Communication System (AREA)
• Circuit Arrangement For Electric Light Sources In General (AREA)
• Radar Systems Or Details Thereof (AREA)
• Eye Examination Apparatus (AREA)

Applications Claiming Priority (1)

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• 2004
  • 2004-09-01 DE DE112004003012T patent/DE112004003012A5/de not_active Withdrawn
  • 2004-09-01 WO PCT/DE2004/001926 patent/WO2006024245A1/fr active IP Right Grant
  • 2004-09-01 EP EP04786696A patent/EP1787058B1/fr not_active Expired - Lifetime
  • 2004-09-01 AT AT04786696T patent/ATE393897T1/de not_active IP Right Cessation
  • 2004-09-01 DE DE502004007015T patent/DE502004007015D1/de not_active Expired - Lifetime
  • 2004-09-01 CN CNB2004800443644A patent/CN100498044C/zh not_active Expired - Fee Related

Non-Patent Citations (1)

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