EP2068291A1 - Method and device for sophisticated detecting of traffic violations in a restricted area controlled by traffic lights - Google Patents
Method and device for sophisticated detecting of traffic violations in a restricted area controlled by traffic lights Download PDFInfo
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- EP2068291A1 EP2068291A1 EP08170628A EP08170628A EP2068291A1 EP 2068291 A1 EP2068291 A1 EP 2068291A1 EP 08170628 A EP08170628 A EP 08170628A EP 08170628 A EP08170628 A EP 08170628A EP 2068291 A1 EP2068291 A1 EP 2068291A1
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- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000001514 detection method Methods 0.000 claims abstract description 36
- 230000006698 induction Effects 0.000 claims description 36
- 230000000903 blocking effect Effects 0.000 claims description 17
- 230000005855 radiation Effects 0.000 claims description 7
- 238000005259 measurement Methods 0.000 claims description 3
- 230000004069 differentiation Effects 0.000 claims description 2
- 230000035515 penetration Effects 0.000 claims 3
- 230000003213 activating effect Effects 0.000 claims 1
- 230000001960 triggered effect Effects 0.000 description 8
- 238000012790 confirmation Methods 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000004886 process control Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/042—Detecting movement of traffic to be counted or controlled using inductive or magnetic detectors
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/017—Detecting movement of traffic to be counted or controlled identifying vehicles
- G08G1/0175—Detecting movement of traffic to be counted or controlled identifying vehicles by photographing vehicles, e.g. when violating traffic rules
Definitions
- the invention relates to a method and a device, as generically from the DE 35 325 27 A1 are known.
- a restricted area during a blocking phase of a traffic light system For the purpose of detecting and punishing traffic violations, vehicles that enter or pass through a restricted area during a blocking phase of a traffic light system are detected and recorded photographically.
- the blocking phase is usually the red-light phase, but it could also include the preceding yellow phase in part.
- the restricted areas enclosing a pedestrian crossing or intersection can be defined differently in the individual national legislations. Within the restricted areas there may be zones in which a detected traffic violation is punished differently.
- the blocking area or a first zone of the blocking area begins at a retaining strip applied on the roadway.
- Non-invasive sensors are in particular radar sensors or laser sensors and are used in traffic monitoring in particular for speed measurement, wherein the speed during the passage of the vehicle through the measuring range is permanently measured or derived from a permanently measured distance to the measuring sensor.
- the measuring range is limited by the marginal rays of the measuring radiation.
- the invasive sensors use piezo strips or, in particular, induction loops.
- the invasive sensors generate a signal when they are run over by a vehicle and thus indicate the presence of a vehicle at the location of the sensor at a specific time or in a specific time range.
- DE 35 32 527 A1 is based on a state of the art, according to which a camera is triggered when passing over a recessed in the lane in front of the intersection area sensor, which generates a first photo of a vehicle driving over this sensor. The camera is then triggered a second time at a fixed time interval to photograph the vehicle in the intersection area. It is recognized as disadvantageous that both a very fast and a very slow moving vehicle with a second shot can not be detected proof. The vehicle driving too fast could have already driven out of the object field of the camera, the slow moving vehicle may not yet be in the intersection area.
- a second shot such as a first one, is created upon detecting a vehicle.
- the mere fact that a second photo is taken is a sure indication that the vehicle has passed the detection site.
- An induction loop is a coil with an air core. They usually consist of one to three turns with a width less the road width and a depth of 1 m regularly. Several induction loops in a row are arranged with a minimum distance equal to the depth of the induction loops.
- An induction loop has a constant inductance, which increases when a metallic body, here a vehicle, enters the induction loop. As soon as the induction loop is covered by the vehicle over its depth, the inductance remains almost constant and then drops back to its original value when it is being moved out. According to the DE 35 32 527 A1 This inductance change is converted over time by signal processing means to a perfectly processable square pulse. For the further signal processing is only of interest, whether this square wave signal is present or not.
- a device according to the DE 35 32 527 A1 and a method practiced hereby have the particular disadvantage that two induction loops are absolutely necessary.
- the images whether as a frontal photography or rear photography, then triggered when a signal from the induction loops is effected and that occurs when the vehicle enters the induction loop.
- frontal photography this means that at the time the camera is triggered, a vehicle front is always at the same distance from the camera.
- the distance of the stern in a rear-view photograph may vary by the possible difference in length of the vehicles. There may be more than 10 m of difference in length between a motorcycle and a semi-trailer, ie the distance between the rear of the vehicle and the camera may vary by this difference in length.
- the invention has for its object to provide a simplified method and a device suitable for the differential detection of traffic violations.
- a method according to the invention differs essentially in that when crossing an induction loop two signals are derived and used for data acquisition and process control.
- An entrance signal is derived when the vehicle enters its front in an induction loop.
- An exit signal is diverted when the vehicle exits with its tail an induction loop.
- a document signal can be limited, which occupies the presence of the vehicle within the induction loop.
- the entry and exit signals and possibly document signals can be used for process control or data acquisition.
- a first induction loop 1 the entry of the vehicle is detected in the restricted area.
- the blocking area does not start here, for example, exactly with a holding strip 2 applied on the roadway, but just behind it.
- the entrance signal E1 is used as a control signal for triggering a camera and thus creating a first frontal photo. Further front photos are released after fixed times.
- the exit signal A1 With the exit signal A1, the presence of the vehicle after a travel L equal to the sum of the depth of the induction loop 1 and the vehicle length is detected. That is, since the position of the vehicle rear is detected, vehicles of different lengths can be located at different depths in the restricted area. It could be assumed that vehicles of greater length are better placed than vehicles of lesser length, since they can travel far into the second restricted area before they are detected here. Practically, however, this is not the case, since the vehicles come either outside of the restricted area, ie in the direction of travel substantially behind the retaining strip 1 or just behind the retaining strip 1 and thus in the restricted area to a halt.
- the metrological recording of both events allows them to be distinguished without requiring a visual evaluation of the photos. At least they support an evaluation of the photos. If no exit signal A is generated, the offense is only a hold violation. By generating a receipt signal with the entry signal, which is terminated with the exit signal A, an additional confirmation can be obtained by the receipt signal that it is actually a holding ticket violation.
- the described first embodiment of the method only allows a differentiated detection as to whether a vehicle passing over the holding strip has come to a halt or not.
- red light violation When detecting a red light violation, it can not be ruled out that further vehicles, traveling on the same roadway, also commit a holding light or red light violation, ie, further entry signals E or exit signals A could be detected.
- the speed should also be recorded to z.
- violations can be differentiated depending on the speed.
- z. B. a right turn or crossing a pedestrian crossing to a predetermined driving speed is allowed, the arrest, however, is punished in the pedestrian area or too fast driving through.
- the vehicle speed is determined from the time interval between the entry signal E1 of a first induction loop 1 and the entry signal E2 of a second induction loop and the knowledge of the distance between the two induction loops, and the second entry signal E2 triggers a camera as in the first embodiment to create a first front photo.
- the time is determined at which the vehicle is at a predetermined distance from the camera, depending on the determined speed.
- a camera with a smaller depth of focus range and thus with a larger aperture stop can be used, so that the range of variation of the possible distances between the vehicle fronts during the recording is lower.
- the utilization of a second exit signal A2 is analogous to the exit signal A1 of the first embodiment.
- a third embodiment is also based on Fig. 2a-d be explained, however, a first induction loop 1 is arranged in the direction of travel behind a second induction loop 2 so far that a first exit signal A1 is generated before the vehicle reaches the holding strip.
- the vehicle speed can be determined equal to the second embodiment from the time interval to the first entry signal E1 and the known distance of the induction loops.
- the vehicle length can be determined. The knowledge about the vehicle length can serve as a decision criterion as to whether the vehicle in question drives on a lane permissible for the vehicle.
- the vehicle length can also be used in conjunction with the vehicle speed to a triggered by the second entrance signal E2 camera to delay, so that in a rear photography this comes in a predetermined distance to the camera.
- two entry signals E1 and E2 and two exit signals A1 and A2 are generated after passing over a holding strip.
- the entrance signal E1 indicates that the vehicle has run over the retaining strip.
- the entrance signal E2 indicates that the vehicle has entered the area of a pedestrian crossing. From both signals can be derived as already explained, the speed.
- the first exit signal A1 could be used to trigger a camera to create a rear photo when exceeding a predetermined speed is detected.
- the second exit signal A2 could trigger a second tail photo.
- signals were also used as control signals for triggering a camera. This is necessary for the traffic guidance, which relies on a photographic detection of the violating vehicle.
- a method according to the invention and a device suitable for this purpose can also be used for statistical purposes where a photograph of the detected vehicles is not required.
- the detection area has been defined by an induction loop. It has proven to be a robust and inexpensive Variant exposed and is particularly suitable if more than two detection areas are to be created.
- the detection region can also be defined by other sensors inserted in the roadway or by radiation sensors which direct a measuring radiation onto the roadway.
- the marginal rays of the measuring beam then limit the detection range.
- An entry signal is generated when the intensity of the radiation reflected back on the vehicle exceeds a predefined threshold value for the first time and generates an exit signal if the intensity falls below this threshold value.
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Abstract
Description
Die Erfindung betrifft ein Verfahren und eine Vorrichtung, wie sie gattungsgemäß aus der
Es ist bekannt, ampelgesteuerte Sperrbereiche, wie Fußgängerüberwege oder Kreuzungen, zu statistischen Zwecken, zur Verkehrsregulierung oder zur Ahndung von Verkehrsverstößen zu überwachen.It is known to control traffic light-controlled restricted areas, such as pedestrian crossings or intersections, for statistical purposes, for traffic regulation or for the punishment of traffic violations.
Zum Zweck der Erfassung und Ahndung von Verkehrsverstößen werden Fahrzeuge, die während einer Sperrphase einer Ampelanlage in einen Sperrbereich eintreten bzw. diesen durchfahren, detektiert und fotografisch erfasst. Die Sperrphase ist in der Regel die Rotlichtphase, sie könnte aber auch die vorangehende Gelbphase teilweise mit umfassen.
Die einen Fußgängerüberweg oder eine Kreuzung einschließenden Sperrbereiche können in den einzelnen nationalen Gesetzgebungen unterschiedlich definiert sein. Innerhalb der Sperrbereiche kann es Zonen geben, in denen ein erfasster Verkehrsverstoß unterschiedlich geahndet wird.For the purpose of detecting and punishing traffic violations, vehicles that enter or pass through a restricted area during a blocking phase of a traffic light system are detected and recorded photographically. The blocking phase is usually the red-light phase, but it could also include the preceding yellow phase in part.
The restricted areas enclosing a pedestrian crossing or intersection can be defined differently in the individual national legislations. Within the restricted areas there may be zones in which a detected traffic violation is punished differently.
In der Regel beginnt der Sperrbereich bzw. eine erste Zone des Sperrbereiches an einem auf der Fahrbahn aufgetragenen Haltestreifen.As a rule, the blocking area or a first zone of the blocking area begins at a retaining strip applied on the roadway.
In Ländern, die einen Verkehrsverstoß ausschließlich anhand des Überfahrens eines solchen Haltestreifens definieren, ist es ausreichend, das Überfahren des Haltestreifens während der Sperrphase zu detektieren.In countries that define a traffic violation solely by driving over such a retaining strip, it is sufficient to detect the passing of the retaining strip during the blocking phase.
In Ländern, in denen das bloße Überfahren des Haltestreifens anders geahndet wird, als z. B. das Durchfahren eines dahinter liegenden Fußgängerübergangsbereiches oder das Durchfahren eines hinter einem Haltestreifen bzw. einem Fußgängerübergangsbereich liegenden Kreuzungsbereiches einer die überwachte Fahrbahn kreuzenden Fahrbahn, ist es von Interesse, diese Ereignisse gegebenenfalls sicher zu erfassen.In countries where the mere crossing of the retaining strip is punished differently than z. B. driving through an underlying pedestrian crossing area or passing through a crossing behind a holding strip or a pedestrian crossing area of the monitored Lane crossing road, it is of interest to record these events safely if necessary.
Zur Detektion von auf einer Fahrbahn fahrenden Fahrzeugen sind Verfahren und Vorrichtungen bekannt mit invasiven und nicht-invasiven Sensoren.Methods of detecting invasive and non-invasive sensors are known for detecting on-highway vehicles.
Nicht-invasive Sensoren sind insbesondere Radarsensoren oder Lasersensoren und werden in der Verkehrsüberwachung insbesondere für die Geschwindigkeitsmessung eingesetzt, wobei die Geschwindigkeit während der Durchfahrt des Fahrzeuges durch den Messbereich permanent gemessen bzw. aus einer permanent gemessenen Entfernung zum Messsensor abgeleitet wird. Der Messbereich wird durch die Randstrahlen der Messstrahlung begrenzt.Non-invasive sensors are in particular radar sensors or laser sensors and are used in traffic monitoring in particular for speed measurement, wherein the speed during the passage of the vehicle through the measuring range is permanently measured or derived from a permanently measured distance to the measuring sensor. The measuring range is limited by the marginal rays of the measuring radiation.
Bei den invasiven Sensoren kommen Piezostreifen oder insbesondere Induktionsschleifen zum Einsatz. Die invasiven Sensoren generieren ein Signal, wenn sie durch ein Fahrzeug überfahren werden und zeigen damit die Anwesenheit eines Fahrzeuges am Ort des Sensors zu einem bestimmten Zeitpunkt bzw. in einem bestimmten Zeitbereich an.The invasive sensors use piezo strips or, in particular, induction loops. The invasive sensors generate a signal when they are run over by a vehicle and thus indicate the presence of a vehicle at the location of the sensor at a specific time or in a specific time range.
In der Beschreibung der
Zur Lösung dieses Problems wird in der
Für eine differenzierte Verkehrsverstoßerfassung sind sowohl ein Verfahren nach
Letzteres detektiert das Fahrzeug nur einmal. In diesem Moment wird die Kamera ein erstes Mal ausgelöst und bildet das Fahrzeug am Detektionsort ab. Nachfolgende Aufnahmen zeigen zwar gegebenenfalls das Fahrzeug an weiteren Orten, aber es bedarf der Auswertung der Aufnahmen, um dies festzustellen.
Bei einem Verfahren nach der
In a method according to the
Bei einer Induktionsschleife handelt es sich um eine Spule mit einem Luftkern.
Sie bestehen in der Regel aus ein bis drei Windungen mit einer Breite geringer der Fahrbahnbreite und einer Tiefe von regelmäßig 1 m.
Mehrere Induktionsschleifen hintereinander werden mit einem Mindestabstand gleich der Tiefe der Induktionsschleifen angeordnet.An induction loop is a coil with an air core.
They usually consist of one to three turns with a width less the road width and a depth of 1 m regularly.
Several induction loops in a row are arranged with a minimum distance equal to the depth of the induction loops.
Eine Induktionsschleife hat eine konstante Induktivität, die sich erhöht, wenn ein metallischer Körper, hier ein Fahrzeug, in die Induktionsschleife hineinfährt. Sobald die Induktionsschleife über ihre Tiefe von dem Fahrzeug überdeckt ist, bleibt die Induktivität nahezu konstant und sinkt dann beim Herausfahren wieder auf ihren ursprünglichen Wert zurück. Gemäß der
Eine Vorrichtung gemäß der
Darüber hinaus werden die Aufnahmen, egal ob als Frontalfotografie oder Heckfotografie, dann ausgelöst, wenn ein Signal von den Induktionsschleifen bewirkt wird und das erfolgt beim Eintritt des Fahrzeuges in die Induktionsschleife.
Bei Frontalfotografie heißt das, dass sich zum Zeitpunkt des Auslösens der Kamera, eine Fahrzeugfront immer im gleichen Abstand zur Kamera befindet. Hingegen kann der Abstand des Hecks bei einer Heckfotografie um die mögliche Längendifferenz der Fahrzeuge variieren. Zwischen einem Motorrad und einem Sattelschlepper können mehr als 10 m Längenunterschied sein, das heißt der Abstand des Fahrzeughecks zur Kamera kann um diesen Längenunterschied variieren.In addition, the images, whether as a frontal photography or rear photography, then triggered when a signal from the induction loops is effected and that occurs when the vehicle enters the induction loop.
In frontal photography, this means that at the time the camera is triggered, a vehicle front is always at the same distance from the camera. By contrast, the distance of the stern in a rear-view photograph may vary by the possible difference in length of the vehicles. There may be more than 10 m of difference in length between a motorcycle and a semi-trailer, ie the distance between the rear of the vehicle and the camera may vary by this difference in length.
Der Erfindung liegt die Aufgabe zugrunde, ein vereinfachtes Verfahren und eine hierzu geeignete Vorrichtung zur differenzierten Erfassung von Verkehrsverstößen zu schaffen.The invention has for its object to provide a simplified method and a device suitable for the differential detection of traffic violations.
Diese Aufgabe wird für ein Verfahren mit den Merkmalen des Anspruches 1 und für eine Vorrichtung mit den Merkmalen des Anspruches 11 gelöst.
Vorteilhafte Weiterbildungen sind in den Unteransprüchen beschrieben.This object is achieved for a method having the features of
Advantageous developments are described in the subclaims.
Anhand der Zeichnung wird das Verfahren im Folgenden beispielhaft näher erläutert.The method is explained in more detail below by way of example with reference to the drawing.
- Fig. 1a+bFig. 1a + b
- eine Fahrbahn mit einer Induktionsschleife hinter dem Haltestreifena carriageway with an induction loop behind the retaining strip
- Fig. 2a-dFig. 2a-d
- eine Fahrbahn mit zwei Induktionsschleifen vor und hinter einem Haltestreifena carriageway with two induction loops in front of and behind a retaining strip
- Fig. 3a-dFig. 3a-d
- eine Fahrbahn mit zwei Induktionsschleifen hinter dem Haltestreifena carriageway with two induction loops behind the retaining strip
Das erfindungsgemäße Verfahren soll nachfolgend insbesondere an Ausführungsformen erläutert werden, bei denen der Detektionsbereich bzw. die Detektionsbereiche durch eine Induktionsschleife definiert werden.The method according to the invention will be explained below in particular in embodiments in which the detection area or the detection areas are defined by an induction loop.
Gegenüber gattungsgleichen, aus dem Stand der Technik bekannten Verfahren und Vorrichtungen unterscheidet sich ein erfindungsgemäßes Verfahren im Wesentlichen dadurch, dass beim Überfahren einer Induktionsschleife zwei Signale abgeleitet und zur Datengewinnung bzw. Verfahrenssteuerung verwendet werden.Compared to generic same, known from the prior art methods and apparatus, a method according to the invention differs essentially in that when crossing an induction loop two signals are derived and used for data acquisition and process control.
Ein Eintrittssignal wird abgeleitet, wenn das Fahrzeug mit seiner Front in eine Induktionsschleife einfährt.
Ein Austrittssignal wird abgeleitet, wenn das Fahrzeug mit seinem Heck eine Induktionsschleife verlässt.
Vorteilhaft kann durch diese beiden auf einen Zeitpunkt reduzierten Signale ein Belegsignal begrenzt werden, welches die Anwesenheit des Fahrzeuges innerhalb der Induktionsschleife belegt. Je nach Anordnung einer oder auch mehrerer Induktionsschleifen innerhalb oder zu einem Sperrbereich, der durch Fahrbahnmarkierungen und/oder die Position einer Ampel bestimmt ist, können die Eintritts- und Austrittssignale und gegebenenfalls Belegsignale zur Verfahrenssteuerung oder Datengewinnung verwendet werden.An entrance signal is derived when the vehicle enters its front in an induction loop.
An exit signal is diverted when the vehicle exits with its tail an induction loop.
Advantageously, by these two signals reduced to one point in time, a document signal can be limited, which occupies the presence of the vehicle within the induction loop. Depending on the arrangement of one or more inductive loops within or to a stop band, which is determined by road markings and / or the position of a traffic light, the entry and exit signals and possibly document signals can be used for process control or data acquisition.
Welche Signale wofür genutzt werden, hängt davon ab, welche Daten benötigt werden, um einen Verkehrsverstoß differenziert erfassen zu können.Which signals are used depends on which data is required to detect a traffic violation in a differentiated manner.
Bei einer ersten Ausführungsform, die anhand der
Das Eintrittssignal E1 wird als Steuersignal zum Auslösen einer Kamera und damit Erstellen eines ersten Frontfotos verwendet. Weitere Frontfotos werden nach fest vorgegebenen Zeiten ausgelöst.The entrance signal E1 is used as a control signal for triggering a camera and thus creating a first frontal photo. Further front photos are released after fixed times.
Mit dem Austrittssignal A1 wird die Anwesenheit des Fahrzeuges nach einem Fahrweg L gleich der Summe aus der Tiefe der Induktionsschleife 1 und der Fahrzeuglänge detektiert. Das heißt, da die Position des Fahrzeughecks detektiert wird, können sich Fahrzeuge unterschiedlicher Länge unterschiedlich tief im Sperrbereich befinden. Man könnte annehmen, dass Fahrzeuge größerer Länge gegenüber Fahrzeugen geringerer Länge besser gestellt sind, da diese weit in den zweiten Sperrbereich einfahren können, bevor sie hier detektiert werden. Praktisch ist das jedoch nicht der Fall, da die Fahrzeuge entweder außerhalb des Sperrbereiches, d. h. in Fahrtrichtung im Wesentlichen hinter dem Haltestreifen 1 oder knapp hinter dem Haltestreifen 1 und damit im Sperrbereich zum Halten kommen. Ist beides nicht der Fall, dann durchfahren sie in der Regel den Sperrbereich, d. h. die zweite Detektion des Fahrzeuges kann als Bestätigung dafür genommen werden, dass das Fahrzeug nicht nur tiefer in den Sperrbereich eingefahren ist, sondern ihn durchfährt. Ob nach einem Eintrittssignal E ein Austrittssignal A generiert wurde, ist ein Beleg dafür, ob das Fahrzeug nur in den Sperrbereich eingefahren ist, was in der Regel als Haltestreifenverstoß bezeichnet wird, oder auch den Sperrbereich durchfahren hat, was in der Regel als Rotlichtverstoß bezeichnet wird.With the exit signal A1, the presence of the vehicle after a travel L equal to the sum of the depth of the
Über die messtechnische Erfassung beider Ereignisse können diese unterschieden werden, ohne dass eine visuelle Auswertung der Fotos erforderlich wäre. Zumindest unterstützen sie jedoch eine Auswertung der Fotos.
Wird kein Austrittssignal A generiert, ist der Verstoß nur ein Haltestreifenverstoß. Indem mit dem Eintrittssignal ein Belegsignal generiert wird, welches mit dem Austrittssignal A beendet wird, kann durch das Belegsignal eine zusätzliche Bestätigung erhalten werden, dass es sich tatsächlich um einen Haltestreifenverstoß handelt.
Die beschriebene erste Ausführung des Verfahrens ermöglicht lediglich eine differenzierte Erfassung, ob ein den Haltestreifen überfahrendes Fahrzeug noch zum Halten gekommen ist oder nicht.The metrological recording of both events allows them to be distinguished without requiring a visual evaluation of the photos. At least they support an evaluation of the photos.
If no exit signal A is generated, the offense is only a hold violation. By generating a receipt signal with the entry signal, which is terminated with the exit signal A, an additional confirmation can be obtained by the receipt signal that it is actually a holding ticket violation.
The described first embodiment of the method only allows a differentiated detection as to whether a vehicle passing over the holding strip has come to a halt or not.
Bei der Erfassung des Haltestreifenverstoßes ist gesichert, dass während derselben Sperrphase kein zweites Fahrzeug auf der gleichen Fahrspur detektiert werden kann, da das zum Halten gekommene Fahrzeug das nachfolgende blockiert. Der Detektionsbereich könnte für die verbleibende Zeitdauer der Sperrphase deaktiviert werden.In the detection of the holding strip violation, it is ensured that during the same blocking phase no second vehicle can be detected on the same lane, because the stopped vehicle blocks the subsequent lane. The detection area could be deactivated for the remaining period of the blocking phase.
Bei der Erfassung eines Rotlichtverstoßes kann nicht ausgeschlossen werden, dass weitere Fahrzeuge, auf der gleichen Fahrbahn fahrend, ebenso noch einen Haltestreifen- oder Rotlichtverstoß begehen, das heißt es könnten weitere Eintrittssignale E oder auch Austrittssignale A detektiert werden.When detecting a red light violation, it can not be ruled out that further vehicles, traveling on the same roadway, also commit a holding light or red light violation, ie, further entry signals E or exit signals A could be detected.
In einer zweiten Ausführungsform, die anhand den
Darüber hinaus können Verstöße in Abhängigkeit von der Geschwindigkeit differenziert werden. Es gibt nationale Gesetzgebungen, nach denen z. B. ein Rechtsabbiegen oder das Überfahren eines Fußgängerübergangs bis zu einer vorgegebenen Fahrgeschwindigkeit zulässig ist, das Anhalten hingegen im Fußgängerbereich bzw. das zu schnelle Durchfahren geahndet wird.In addition, violations can be differentiated depending on the speed. There are national laws according to which z. B. a right turn or crossing a pedestrian crossing to a predetermined driving speed is allowed, the arrest, however, is punished in the pedestrian area or too fast driving through.
In dieser zweiten Ausführungsform wird aus dem zeitlichen Abstand des Eintrittssignals E1 einer ersten Induktionsschleife 1 und des Eintrittssignals E2 einer zweiten Induktionsschleife sowie der Kenntnis der Entfernung zwischen den beiden Induktionsschleifen die Fahrzeuggeschwindigkeit ermittelt, und das zweite Eintrittssignal E2 löst wie in der ersten Ausführungsform eine Kamera aus, um ein erstes Frontfoto zu erstellen. Um den Auslösezeitpunkt für weitere Frontfotos zu ermitteln, wird in Abhängigkeit von der ermittelten Geschwindigkeit der Zeitpunkt bestimmt, an dem sich das Fahrzeug in einem vorgegebenen Abstand zur Kamera befindet. Im Vergleich zur ersten Ausführungsform kann eine Kamera mit einem geringeren Tiefenschärfebereich und damit mit einer größeren Öffnungsblende verwendet werden, sodass die Schwankungsbreite der möglichen Abstände der Fahrzeugfronten während der Aufnahmen geringer ist. Die Verwertung eines zweiten Austrittssignals A2 erfolgt analog dem Austrittssignal A1 der ersten Ausführungsform.In this second embodiment, the vehicle speed is determined from the time interval between the entry signal E1 of a
Eine dritte Ausführungsform soll ebenfalls anhand von
In einer vierten Ausführungsform werden zwei Eintrittssignale E1 und E2 sowie zwei Austrittssignale A1 und A2 nach dem Überfahren eines Haltestreifens generiert.
Wie in den vorangegangenen Ausführungsformen wird jeweils die Position des Hecks bzw. der Front eines Fahrzeuges signalisiert.
Das Eintrittssignal E1 zeigt an, dass das Fahrzeug den Haltestreifen überfahren hat.
Das Eintrittssignal E2 zeigt an, dass das Fahrzeug in den Bereich eines Fußgängerübergangs eingedrungen ist.
Aus beiden Signalen lässt sich wie bereits erläutert die Geschwindigkeit ableiten.
Das erste Austrittssignal A1 könnte verwendet werden, um eine Kamera zur Erstellung eines Heckfotos auszulösen, wenn das Überschreiten einer vorgegebenen Geschwindigkeit festgestellt wird. Das zweite Austrittssignal A2 könnte ein zweites Heckfoto auslösen.In a fourth embodiment, two entry signals E1 and E2 and two exit signals A1 and A2 are generated after passing over a holding strip.
As in the previous embodiments, the position of the rear or the front of a vehicle is signaled in each case.
The entrance signal E1 indicates that the vehicle has run over the retaining strip.
The entrance signal E2 indicates that the vehicle has entered the area of a pedestrian crossing.
From both signals can be derived as already explained, the speed.
The first exit signal A1 could be used to trigger a camera to create a rear photo when exceeding a predetermined speed is detected. The second exit signal A2 could trigger a second tail photo.
Durch das erfindungsgemäße Ableiten eines Eintritts- und eines Austrittssignals beim Überfahren einer Induktionsschleife können im Vergleich zum Stand der Technik mit einer gleichen Anzahl von Induktionsschleifen mehr Fahrzeugpositionen detektiert werden, um Verkehrsverstöße an Lichtsignalanlagen differenzierter ahnden zu können.By deriving an entry and an exit signal when passing an induction loop according to the invention, more vehicle positions can be detected in comparison to the prior art with an equal number of induction loops in order to be able to differentiate traffic violations at traffic light systems in a differentiated manner.
Bei allen vorgenannten Ausführungsformen wurden Signale auch als Steuersignale zum Auslösen einer Kamera verwendet. Dies ist für die Verkehrsahndung, die sich auf eine fotografische Erfassung des verstoßenden Fahrzeuges stützt, notwendig.
Ein erfindungsgemäßes Verfahren und eine hierzu geeignete Vorrichtung sind aber auch für statistische Zwecke einsetzbar, wo eine fotografische Aufnahme der detektierten Fahrzeuge nicht erforderlich ist.In all the above embodiments, signals were also used as control signals for triggering a camera. This is necessary for the traffic guidance, which relies on a photographic detection of the violating vehicle.
However, a method according to the invention and a device suitable for this purpose can also be used for statistical purposes where a photograph of the detected vehicles is not required.
Bei allen vorgenannten Ausführungsformen wurde der Detektionsbereich durch eine Induktionsschleife definiert. Sie hat sich als eine robuste und preiswerte Variante herausgestellt und ist insbesondere geeignet, wenn mehr als zwei Detektionsbereiche geschaffen werden sollen.In all the aforementioned embodiments, the detection area has been defined by an induction loop. It has proven to be a robust and inexpensive Variant exposed and is particularly suitable if more than two detection areas are to be created.
Grundsätzlich kann der Detektionsbereich auch durch andere in die Fahrbahn eingelegte Sensoren definiert werden oder durch Strahlungssensoren, die eine Messstrahlung auf die Fahrbahn richten. Die Randstrahlen des Messstrahlenbündels begrenzen dann den Detektionsbereich. Es wird ein Eintrittssignal generiert, wenn die Intensität der am Fahrzeug zurückreflektierten Strahlung das erste Mal einen vorgegebenen Schwellwert überschreitet und ein Austrittssignal generiert, wenn die Intensität diesen Schwellwert unterschreitet. Vorteilhaft bei derartigen Ausführungsformen ist, dass die Detektionsbereiche temporär eingerichtet werden können und leicht in ihrer Lage und Dimension veränderbar sind.
Während die Tiefe des Detektionsbereiches bei Induktionsschleifen in der Regel 1 m ist, kann die Tiefe bei Detektionsbereichen, bestimmt durch einen Messstrahlenbereich, durch eine Änderung des Öffnungswinkels des Messstrahlenbündels oder eine veränderte Aufstellung zur Fahrbahn einfach verändert werden, um sie einer konkreten Differenzierungsabsicht anzupassen.In principle, the detection region can also be defined by other sensors inserted in the roadway or by radiation sensors which direct a measuring radiation onto the roadway. The marginal rays of the measuring beam then limit the detection range. An entry signal is generated when the intensity of the radiation reflected back on the vehicle exceeds a predefined threshold value for the first time and generates an exit signal if the intensity falls below this threshold value. An advantage of such embodiments is that the detection areas can be set up temporarily and are easily changeable in their position and dimension.
While the depth of the detection zone in the case of induction loops is generally 1 m, the depth at detection areas, determined by a measuring beam area, can easily be changed by a change in the opening angle of the measuring beam or an altered alignment to the roadway, in order to adapt it to a concrete differentiation intention.
Claims (11)
dadurch gekennzeichnet,
dass beim Einfahren des Fahrzeuges in den Detektionsbereich ein Eintrittssignal (E) und beim Ausfahren des Fahrzeuges aus dem Detektionsbereich ein Austrittssignal (A) generiert wird,
dass aus dem Erhalt eines Eintrittssignals (E) und eines Austrittssignals (A) abgeleitet wird, dass ein Fahrzeug den Sperrbereich durchfahren hat und die Generation weiterer Eintrittssignale (E) und Austrittssignale (A) während derselben Sperrphase nicht auszuschließen ist und
dass bei Erhalt nur eines Eintrittssignals (E), dem innerhalb einer vorgegebenen Zeit kein Austrittssignal (A) folgt, abgeleitet wird, dass ein Fahrzeug in den Sperrbereich eingedrungen und zum Halten gekommen ist und in derselben Sperrphase keine weiteren Eintritts- oder Austrittssignale zu erwarten sind.Method for the differentiated detection of traffic violations in a traffic-light-controlled blocking area, in which a detection area of predefined depth is formed within the restricted area, which is activated during a blocking phase connected by a traffic light system in order to detect the penetration of a vehicle into the restricted area during the blocking phase,
characterized,
that is generated during retraction of the vehicle in the detection region of an entrance signal (E) and during extension of the vehicle from the detection range an exit signal (A),
that is derived from the receipt of an entry signal (E) and an exit signal (A) that a vehicle has passed through the restricted area and the generation of further entry signals (E) and exit signals (A) during the same lock phase can not be excluded, and
in that upon receipt of only one entry signal (E) which does not follow an exit signal (A) within a predetermined time, it is deduced that a vehicle has penetrated into the restricted area and has come to a halt and no further entry or exit signals are to be expected in the same blocking phase ,
dass der Detektionsbereich durch einen in die Fahrbahn eingelassenen Sensor bestimmt ist.Method according to claim 1, characterized in that
that the detection range is defined by a recessed into the road surface sensor.
dass der Sensor eine Induktionsschleife ist und die vorgegebene Tiefe durch den Abstand der zur Fahrbahnrichtung senkrecht verlaufenden Schleifenabschnitte bestimmt ist.Method according to claim 2, characterized in that
that the sensor is an induction loop and the predetermined depth is determined by the distance the direction perpendicular to the road direction loop portions.
dass der Detektionsbereich der Messbereich einer Messstrahlung ist und die vorgegebene Tiefe durch den Abstand der Randstrahlen bestimmt ist.Method according to claim 1, characterized in that
that the detection area is the measurement area of a measurement beam and the predetermined depth is determined by the spacing of the marginal rays.
dass die Messstrahlung eine Radarstrahlung ist.Method according to claim 4, characterized in that
that the measuring radiation is a radar beam.
dass die Messstrahlung eine Laserstrahlung ist.Method according to claim 4, characterized in that
that the measuring radiation is a laser radiation.
dass wenigstens ein Foto erstellt wird, während das Fahrzeug detektiert wird.Method according to claim 1, characterized in that
that at least one photo is taken while the vehicle is being detected.
dass je nachdem, ob nur ein Eintrittssignal oder ein Eintritts- und ein Austrittssignal generiert wird, in das Foto eine unterschiedliche Kennung eingeblendet wird.Method according to claim 1, characterized in that
that depending on whether only an entrance signal or an entrance and an exit signal is generated, a different identifier is displayed in the photo.
dass mehr als nur ein Detektionsbereich gebildet wird, um eine noch größere Differenzierung der Verstöße vorzunehmen, wie die Unterscheidung des Eindringens in den Sperrbereich, des Eindringens in eine bestimmte Zone innerhalb des Sperrbereiches, wie ein Fußgängerüberweg, und des Durchfahrens des Sperrbereiches.Method according to claim 1, characterized in that
that more than one detection area is formed in order to carry out an even greater differentiation of the violations, such as the distinction between the penetration into the restricted area, the penetration into a certain zone within the restricted area, such as a pedestrian crossing, and the passage through the blocking area.
dass die in Fahrtrichtung ersten Begrenzungen des Sperrbereiches und des Detektionsbereiches zusammenfallen.Method according to claim 1, characterized in that
in that the first direction of travel limits of the blocking area and the detection area coincide.
Mittel zur Bildung eines Detektionsbereiches,
Mittel zur Aktivierung des Detektionsbereiches während einer durch eine Ampelanlage geschalteten Sperrphase,
dadurch gekennzeichnet,
dass Mittel vorhanden sind, die beim Einfahren des Fahrzeuges in den Detektionsbereich ein Eintrittssignal E und beim Ausfahren des Fahrzeuges aus dem Detektionsbereich ein Austrittssignal A generieren,
um aus dem Erhalt eines Eintrittssignals E und eines Austrittssignals A abzuleiten, dass ein Fahrzeug den Sperrbereich durchfahren hat und die Generation weiterer Eintrittssignale und Austrittssignale während derselben Sperrphase nicht auszuschließen ist und
um bei Erhalt nur eines Eintrittssignals E, dem innerhalb einer vorgegebenen Zeit kein Austrittssignal A folgt, abzuleiten, dass ein Fahrzeug in den Sperrbereich eingedrungen und zum Halten gekommen ist und in derselben Sperrphase keine weiteren Eintritts- oder Austrittssignale zu erwarten sind.Device for differentiated detection of traffic violations in a traffic light-controlled blocking area, comprising
Means for forming a detection area,
Means for activating the detection area during a blocking phase connected by a traffic light system,
characterized,
that means are present which generate an exit signal A when retracting of the vehicle in the detection region of an entrance signal E and during extension of the vehicle from the detection range,
to derive from the receipt of an entry signal E and an exit signal A, that a vehicle has passed through the stop band and the generation of further entry signals and exit signals during the same lock phase can not be excluded, and
in order to derive, upon receipt of only one entry signal E, which within a predetermined time no exit signal A follows, that a vehicle has penetrated into the restricted area and has come to a halt and no further entry or exit signals are to be expected in the same blocking phase.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CY20111100606T CY1111593T1 (en) | 2007-12-03 | 2011-06-27 | METHOD AND PROVISION FOR A DIFFERENTIAL DETERMINATION OF TRAFFIC VIOLATIONS IN A RESTRICTED CIRCUIT LIGHT CONTROLLED AREA |
Applications Claiming Priority (1)
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DE102007058742A DE102007058742A1 (en) | 2007-12-03 | 2007-12-03 | Method and device for differentiated detection of traffic violations in a traffic light-controlled blocking area |
Publications (2)
Publication Number | Publication Date |
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EP2068291A1 true EP2068291A1 (en) | 2009-06-10 |
EP2068291B1 EP2068291B1 (en) | 2011-03-30 |
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ID=40328963
Family Applications (1)
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EP08170628A Active EP2068291B1 (en) | 2007-12-03 | 2008-12-03 | Method and device for sophisticated detecting of traffic violations in a restricted area controlled by traffic lights |
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Country | Link |
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EP (1) | EP2068291B1 (en) |
AT (1) | ATE504055T1 (en) |
CY (1) | CY1111593T1 (en) |
DE (2) | DE102007058742A1 (en) |
HK (1) | HK1134163A1 (en) |
Cited By (4)
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EP2341367A3 (en) * | 2009-12-22 | 2012-02-29 | JENOPTIK Robot GmbH | Method and assembly for detecting traffic violations in an area with traffic lights |
CN104732771A (en) * | 2015-04-08 | 2015-06-24 | 高萍 | Identification method for overtaking vehicle at traffic intersection |
CN104732772A (en) * | 2015-04-08 | 2015-06-24 | 高萍 | Identification platform for overtaking vehicle at traffic intersection |
CN111008609A (en) * | 2019-12-16 | 2020-04-14 | 北京迈格威科技有限公司 | Traffic light and lane matching method and device and electronic equipment |
Families Citing this family (1)
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CN103325252B (en) * | 2013-06-07 | 2015-07-15 | 太仓苏晟电气技术科技有限公司 | Solar red-light-running snapshot system and working method thereof |
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- 2008-12-03 AT AT08170628T patent/ATE504055T1/en active
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EP2341367A3 (en) * | 2009-12-22 | 2012-02-29 | JENOPTIK Robot GmbH | Method and assembly for detecting traffic violations in an area with traffic lights |
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CN111008609B (en) * | 2019-12-16 | 2023-05-19 | 北京迈格威科技有限公司 | Traffic light and lane matching method and device and electronic equipment |
Also Published As
Publication number | Publication date |
---|---|
EP2068291B1 (en) | 2011-03-30 |
CY1111593T1 (en) | 2015-10-07 |
DE102007058742A1 (en) | 2009-06-04 |
HK1134163A1 (en) | 2010-04-16 |
ATE504055T1 (en) | 2011-04-15 |
DE502008003003D1 (en) | 2011-05-12 |
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