EP1224644B1 - Vorrichtung zur steuerung des verkehrsflusses an einer kreuzung, insbesondere zur ampelsteuerung - Google Patents
Vorrichtung zur steuerung des verkehrsflusses an einer kreuzung, insbesondere zur ampelsteuerung Download PDFInfo
- Publication number
- EP1224644B1 EP1224644B1 EP00975911A EP00975911A EP1224644B1 EP 1224644 B1 EP1224644 B1 EP 1224644B1 EP 00975911 A EP00975911 A EP 00975911A EP 00975911 A EP00975911 A EP 00975911A EP 1224644 B1 EP1224644 B1 EP 1224644B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- traffic
- transmitter
- sensor device
- receiver
- traffic lights
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/07—Controlling traffic signals
- G08G1/08—Controlling traffic signals according to detected number or speed of vehicles
Definitions
- the invention relates to a device according to the preamble of the claim 1.
- Generic devices are used to control the flow of traffic Intersections are more fluid, in particular via traffic-dependent traffic light control to design.
- Known devices have e.g. Sensor devices on that Detect vehicles in the storage space in front of a traffic light and one of the detected ones Can initiate vehicle density adapted traffic light control.
- the sensor devices used in generic devices are e.g. Induction loops in a distance of approx. 50 to 100 m in front of the traffic light of the roadway, and which are able to run over the loop Detect vehicle and a corresponding signal to the traffic light controlling computer.
- a disadvantage of the known floor loops is that they pass through them rolling vehicles, weather-related or easily damaged by construction work can take and are therefore relatively maintenance-intensive, with associated high costs and traffic influences. You also get with Ground grinding only selective measurements, i.e. you can see the traffic situation especially in the intersection area. Finally allow Ground grinding also no clear vehicle classification.
- US 4,908,615 shows a device for controlling the flow of traffic which is arranged at a traffic light.
- the device monitors one Roadway by means of a beam fan aligned parallel to the roadway is generated via a radar, the beam fan generated using only a small one Angled vertically looks at a small section of the storage space.
- a disadvantage of generic devices is that not all of the circuit the traffic light essential information is recorded.
- the object of the present invention is to provide a device for controlling the To create traffic at an intersection that opposes the traffic situation known systems more fully and thus a more precise adaptation e.g. the traffic light switch to the current traffic situation.
- the task is solved with a device that has the characteristic features of claim 1.
- the invention Device comprising at least one traffic light and one coupled to the traffic light Sensor device which has a beam transmitter which has at least one Lane in the storage space of the intersection in front of the traffic lights from above parallel to the direction of travel generated sweeping beam fan and a receiver with which the points of incidence of the beam fan are detectable, the sensor device has an evaluation device which is determined by the receiver Data determined the profile of the impact points of the beam fan and individual Assigns groups of spatially connected meeting points to objects.
- the beam transmitter of the sensor device is a circumferential laser pulse emitting transmitter, which is arranged so that the beam fan generated also one facing away from the storage space Side of the traffic light extending into the intersection, possibly even beyond Area.
- the use of the rotating laser scanner offers the advantage that a beam fan is generated that has a large scan angle. In this way can the transmitter look both from and to the rear, whereby monitoring of the intersection area becomes possible.
- WO 98/16801 shows a device for monitoring a roadway, wherein monitoring also by means of a laser transmitter Jet fan takes place.
- the device is designed so that only one Beam fan with a relatively small scan angle can be generated, so that with this device only monitoring the road but not the entire intersection area, as is possible with the present invention.
- the receiver and transmitter are preferably all-round in the sensor device and arranged looking in the same direction.
- the sensor device is arranged so that one to the traffic light leading lane in the storage area parallel to the direction of travel from above a beam fan is swept over and a profile of each on the Objects located in the lane, usually vehicles and the roadway created becomes.
- the density of the vehicles follows from the number of profiles in the covered Storage space and the gaps between the profiles.
- An evaluation device is also in the device according to the invention provided that the detected by the receiver per transmitter revolution in the beam fan Impact points processed.
- Related groups of impact points objects can be assigned, whereby fixed objects, e.g. the road surface is saved as always available in a learning mode can be.
- Related groups of meeting points between Jumps in distance or between significant changes compared to saved Data cannot be assigned to fixed objects.
- the movement is preferably not fixed or not stored Objects tracked by location, speed with direction (vectorial) the objects are calculated from the successive data of the beam fans.
- the evaluation device can thus determine whether the objects are in the relevant monitored area, when they leave the area, the objects count, classify and rate for priority. The results of the Evaluation devices can then be used as a basis for traffic light control.
- the sensor device is arranged that it sends the beam fan from above onto the lane to be monitored. Just this way it can be safely ruled out that interfering objects block the light path interrupt and interfere with the measurement.
- the sensor device is preferably in the upper area of the assigned Traffic light, particularly preferably arranged at its free upper end. There Traffic lights are usually set up so that they are uncovered even from larger ones With this configuration, distance can be recognized, that the beam fan is also free and without interfering objects in between, how trees, houses or the like are sent into the lane can. Of course, the sensor device can also be connected to a separate one Posts or the like are attached.
- the invention can be easily used with single, but also with multi-lane roads realize.
- multi-lane roads e.g. a sensor device is provided be that has multiple transmitters, each of the individual lanes generate assigned beam fans.
- Figure 1 shows a section through a roadway 10 with four tracks 11, 12, 13 and 14. In the case shown, tracks 11 and 12 lead out of the image plane and tracks 13 and 14 into the image plane. The tracks are through road markings 15 and 16 and separated by a median strip 17.
- FIG. 1 also shows one that cannot be recognized in this figure Traffic light 18 at the intersection, to which lanes 13 and 14 are in the direction of travel lead.
- a sensor device 19 is provided on the traffic light 18 as explained further below contains a transmitter, each of which has a beam fan 20, 21 from revolving laser beam pulses on the tracks 13 and 14 in the area of the storage space in front of the traffic light 18 sends.
- FIG. 2 shows the lane 10 with the lanes 11, 12, 13 and 14 and an intersection 30 into which the tracks 13 and 14 open out. Furthermore, the sensor 19 can be seen on the in this illustration Traffic light 18 not to be recognized is arranged.
- the beam fan generated by the sensor device 19 20 and 21 are in lanes 13 and 14 over an area 22 in front of the traffic lights extend into the intersection 30.
- the area 22 is chosen so large that approaching vehicles at a sufficient distance from the sensor device 19 recognized and taken into account when switching the traffic light 18 can be.
- the area 22 can e.g. correspond to the distance from which a Motorists can see the traffic light 18.
- the beam fans 20 can be and 21 extend beyond the traffic lights into the area of the intersection. It is even conceivable that, in addition to the intersection, the Cover the area of the tracks leading away from the intersection.
- FIG. 3 shows one that essentially corresponds to FIGS. 1 and 2.
- Sensor device 19 in side view. This representation shows the outer lane 14, the beam fan 21 assigned to this lane, and of objects 23, 24 detected in the beam fan, e.g. in the case shown a bus 23 and a car 24.
- the sensor device 19 in contrast to the known Ground grinding is not just a mere numerical occupancy of the Track 14 determined. Rather, the device 19 is capable of e.g. the right now 23 to be moved to the intersection 30 by the car 24 driving in front of it to differentiate in size.
- a preferably used sensor device 19 is shown in section in FIG. 4. It has a housing 32 with a motor 31, which has a shaft 33 rotates on the transverse a laser transmitter 25 and a receiver surrounding it 35 is attached.
- the transmitter and receiver can be e.g. according to DE 195 30 281 C2, Figure 1 may be formed.
- the laser transmitter 25 sends 33 laser pulses radially to the axis of the rotating shaft from the perpendicular over approximately 180 ° rotation of the shaft 33 in the embodiment clamp a beam fan 21 radiating downwards.
- a second Beam fan 20 becomes oblique to first beam fan 21 by deflecting the Laser beams on mirrors 28, 29 of the housing 32 during the upper revolution of the laser transmitter 25 / receiver 35 generated.
- Evaluation device determines from the respective start time of a transmitted Pulse and the reception time, which is determined with the built-in receiver 35 the impulse running time and from this the distance to the point of impact an object hit by the laser beam. From the angular position of the Wave 33 which e.g. is determined via angle encoders or other devices, the profile of the impact points measured in the beam fan can be determined.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Traffic Control Systems (AREA)
- Optical Radar Systems And Details Thereof (AREA)
Description
- Fig. 1
- zeigt eine zu einer Ampel führende Straße im Schnitt mit einer Sensoreinrichtung gemäß der ersten Variante der Erfindung.
- Fig. 2
- zeigt eine Aufsicht auf eine Kreuzung, bei der die in Fig. 1 gezeigte Ausführung vorgesehen ist.
- Fig. 3
- zeigt eine Seitenansicht auf eine mit einer Sendeeinrichtung gemäß Fig. 1 ausgestatteten Ampel.
- Fig. 4
- zeigt eine Schnittdetailansicht einer Sensoreinrichtung
Claims (5)
- Vorrichtung zur Steuerung des Verkehrsflusses an einer Kreuzung bestehend aus mindestens einer Ampel und einer mit der Ampel gekoppelten Sensoreinrichtung, die einen Strahlsender (25) aufweist, der mindestens einen eine Fahrspur (13, 14) im Stauraum der Kreuzung (22) vor der Ampel von oben parallel zur Fahrtrichtung überstreichenden Strahlfächer (20, 21) erzeugt und einen Empfänger (35), mit dem die Auftreffpunkte des Strahlfächers detektierbar sind, wobei die Sensoreinrichtung (19) eine Auswerteinrichtung aufweist, die aus den vom Empfänger (35) ermittelten Daten das Profil der Auftreffpunkte des Strahlfächers (20, 21) ermittelt und einzelne Gruppen von räumlich zusammenhängenden Auftreffpunkten Objekten zuordnet, dadurch gekennzeichnet, daß der Strahlsender ein umlaufend Laserimpulse abstrahlender Sender ist, der so angeordnet ist, daß der erzeugte Strahlfächer zusätzlich einen sich auf der dem Stauraum (22) abgewandten Seite der Ampel (18) bis in die Kreuzung (30) hinein ggf. sogar darüber hinaus erstreckenden Bereich abdeckt.
- Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß mit dem Sender (25) über Spiegel (28, 29) zwei beabstandete, unterschiedlichen Fahrbahnen (13, 14) des Stauraumes (22) zugeordnete Strahlfächer (20, 21) erzeugbar sind.
- Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Sensoreinrichtung (19) im oberen Bereich einer Ampel (18) angeordnet ist.
- Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Empfänger (35) in Abstrahlrichtung des Senders (25) blickend und mit diesem umlaufend angeordnet ist.
- Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Auswerteinrichtung die Bewegung erfaßter Objekte durch Berechnung des Ortes, der Geschwindigkeit und Richtung aus den für aufeinanderfolgende Strahlfächer vom Empfänger detektierten Daten ermittelt.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19953008A DE19953008A1 (de) | 1999-10-27 | 1999-10-27 | Vorrichtung zur Steuerung des Verkehrsflusses an einer Kreuzung, insbesondere zur Ampelsteuerung |
DE19953008 | 1999-10-27 | ||
PCT/EP2000/010506 WO2001031608A1 (de) | 1999-10-27 | 2000-10-25 | Vorrichtung zur steuerung des verkehrsflusses an einer kreuzung, insbesondere zur ampelsteuerung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1224644A1 EP1224644A1 (de) | 2002-07-24 |
EP1224644B1 true EP1224644B1 (de) | 2004-01-02 |
Family
ID=7927850
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00975911A Expired - Lifetime EP1224644B1 (de) | 1999-10-27 | 2000-10-25 | Vorrichtung zur steuerung des verkehrsflusses an einer kreuzung, insbesondere zur ampelsteuerung |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1224644B1 (de) |
AT (1) | ATE257264T1 (de) |
DE (2) | DE19953008A1 (de) |
WO (1) | WO2001031608A1 (de) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USRE46672E1 (en) | 2006-07-13 | 2018-01-16 | Velodyne Lidar, Inc. | High definition LiDAR system |
JP5741310B2 (ja) * | 2011-08-10 | 2015-07-01 | 富士通株式会社 | 車列長測定装置、車列長測定方法及び車列長測定用コンピュータプログラム |
US10627490B2 (en) | 2016-01-31 | 2020-04-21 | Velodyne Lidar, Inc. | Multiple pulse, LIDAR based 3-D imaging |
US12123950B2 (en) | 2016-02-15 | 2024-10-22 | Red Creamery, LLC | Hybrid LADAR with co-planar scanning and imaging field-of-view |
JP7149256B2 (ja) | 2016-03-19 | 2022-10-06 | ベロダイン ライダー ユーエスエー,インコーポレイテッド | Lidarに基づく3次元撮像のための統合された照射及び検出 |
US10393877B2 (en) | 2016-06-01 | 2019-08-27 | Velodyne Lidar, Inc. | Multiple pixel scanning LIDAR |
WO2018183843A1 (en) | 2017-03-31 | 2018-10-04 | Velodyne Lidar, Inc. | Integrated lidar illumination power control |
WO2018208843A1 (en) | 2017-05-08 | 2018-11-15 | Velodyne Lidar, Inc. | Lidar data acquisition and control |
EP3455841A4 (de) * | 2017-06-12 | 2019-07-17 | Beijing Didi Infinity Technology And Development Co., Ltd. | Systeme und verfahren zur analyse und korrektur von stassenzuständen |
CN108154691B (zh) * | 2018-02-06 | 2020-10-30 | 中国汽车技术研究中心 | 一种基于专用短程通信的交通调节系统及方法 |
US10712434B2 (en) | 2018-09-18 | 2020-07-14 | Velodyne Lidar, Inc. | Multi-channel LIDAR illumination driver |
US11082010B2 (en) | 2018-11-06 | 2021-08-03 | Velodyne Lidar Usa, Inc. | Systems and methods for TIA base current detection and compensation |
US12061263B2 (en) | 2019-01-07 | 2024-08-13 | Velodyne Lidar Usa, Inc. | Systems and methods for a configurable sensor system |
US11885958B2 (en) | 2019-01-07 | 2024-01-30 | Velodyne Lidar Usa, Inc. | Systems and methods for a dual axis resonant scanning mirror |
US11556000B1 (en) | 2019-08-22 | 2023-01-17 | Red Creamery Llc | Distally-actuated scanning mirror |
CN111145563B (zh) * | 2019-12-17 | 2021-05-25 | 合肥学院 | 一种用于交叉口感应控制的车辆变道检测与控制方法 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4908615A (en) * | 1987-06-26 | 1990-03-13 | Texas Instruments Incorporated | Traffic light control system and method |
DE4042258A1 (de) * | 1990-03-21 | 1991-09-26 | Monte Bau U Handelsgesellschaf | Verkehrsampel |
US5572202A (en) * | 1995-04-03 | 1996-11-05 | Regel; Kenneth E. | Traffic signalling system |
DE19530281C2 (de) * | 1995-08-17 | 1999-01-07 | Johann Hipp | Vorrichtung zum optischen Erfassen von Hindernissen vor Fahrzeugen |
WO1998016801A1 (en) * | 1996-10-11 | 1998-04-23 | Schwartz Electro-Optics, Inc. | Intelligent vehicle highway multi-lane sensor |
-
1999
- 1999-10-27 DE DE19953008A patent/DE19953008A1/de not_active Withdrawn
-
2000
- 2000-10-25 AT AT00975911T patent/ATE257264T1/de not_active IP Right Cessation
- 2000-10-25 EP EP00975911A patent/EP1224644B1/de not_active Expired - Lifetime
- 2000-10-25 DE DE50004944T patent/DE50004944D1/de not_active Expired - Lifetime
- 2000-10-25 WO PCT/EP2000/010506 patent/WO2001031608A1/de active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
EP1224644A1 (de) | 2002-07-24 |
DE50004944D1 (de) | 2004-02-05 |
ATE257264T1 (de) | 2004-01-15 |
WO2001031608A1 (de) | 2001-05-03 |
DE19953008A1 (de) | 2001-05-03 |
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