EP2533223A2 - Arrangement d'un capteur de détection, classification et pesage de véhicules motorisés sur route dans un trafic fluide - Google Patents

Arrangement d'un capteur de détection, classification et pesage de véhicules motorisés sur route dans un trafic fluide Download PDF

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Publication number
EP2533223A2
EP2533223A2 EP20120171320 EP12171320A EP2533223A2 EP 2533223 A2 EP2533223 A2 EP 2533223A2 EP 20120171320 EP20120171320 EP 20120171320 EP 12171320 A EP12171320 A EP 12171320A EP 2533223 A2 EP2533223 A2 EP 2533223A2
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EP
European Patent Office
Prior art keywords
sensors
lane
vehicles
detecting vehicles
sensor arrangement
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.)
Ceased
Application number
EP20120171320
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German (de)
English (en)
Other versions
EP2533223A3 (fr
Inventor
Florian Weiss
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Traffic Data Systems GmbH
Original Assignee
Traffic Data Systems GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Traffic Data Systems GmbH filed Critical Traffic Data Systems GmbH
Publication of EP2533223A2 publication Critical patent/EP2533223A2/fr
Publication of EP2533223A3 publication Critical patent/EP2533223A3/fr
Ceased legal-status Critical Current

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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
    • G08G1/015—Detecting movement of traffic to be counted or controlled with provision for distinguishing between two or more types of vehicles, e.g. between motor-cars and cycles
    • 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
    • G08G1/02—Detecting movement of traffic to be counted or controlled using treadles built into the road
    • 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

Definitions

  • the invention relates to a sensor arrangement for detection, classification and weighing of motor vehicles on roads in flowing traffic. It can be installed in the lanes of a road and thereby used for registration, classification, determination of the mass of vehicles / wheel loads and for the determination of other measured values, such as speed and vehicle length of vehicles passing over the sensor arrangement.
  • sensors It is known to engage in the detection of motor vehicles in or under road surfaces individual sensors or to arrange it below. These are essentially two different types of sensors. These are on the one hand inductive or induction loops or sensors which have a comparable function, ie with which the detection of motor vehicles is possible; on the other hand, sensors are used with those the masses of vehicles are determined when driving over.
  • the latter sensors preferably use the piezoelectric effect and by means of a connected charge amplifier, the respective mass can be detected / assigned when crossing over corresponding proportional measurement signals.
  • sensors can be used which use other physical measuring principles. Thus, the respective net mass or it can also be the wheel loads of a vehicle are determined.
  • these sensors are used in bar form, so that they have a significantly greater length in an axial direction, as in the aligned perpendicular thereto axial direction. This makes it possible to cover the entire width of at least the largest part of a road or a lane.
  • a sensor also referred to as a "balance bar,” with a width of about 5 cm when crossing a wheel, can emit an electrical impulse whose extent ("area") at a given speed is proportional to the mass, which Measuring signal can be used.
  • the inductive loops or alternative sensors of comparable function provide during the passage a characteristic pattern of the vehicle underbody, from the e.g. 8-10 vehicle classes determined and the vehicle length can be determined.
  • the speed can be determined both from the time offset of the patterns of the inductive loops or the alternative sensors of comparable function and the offset of the pulses of the balance bars.
  • the respective wheel pattern center distances, axis groups and their individual weights
  • sensors are used to determine the mass, which can only detect part of the width of a road or a lane. As a rule, sensors are then used which are formed from two half bars are. This makes it possible to detect the wheels of a vehicle individually. In addition, the bending stress of the sensors can be reduced.
  • Transponder loops are also used to detect calibration vehicles equipped with a corresponding transponder in flowing traffic.
  • connection lines connection lines of inductive loops and the sensors for mass determination (connections between sensor or inductive loop and the evaluation electronics), which must be installed in the roadway.
  • the road surfaces must be cut open and then a filling of joints is required.
  • the sensors When the road surface is renewed, the sensors must be removed. If two or three sensor arrays are present on two (three) tracks, renewal of the main lane in conventional installations and recommendations also destroys the leads / connection lines of the sensors and inductive loops of the oncoming lane or the fast lane.
  • the detection and detection systems known hitherto are not readily able, in particular in complex sensor arrangements with a plurality of sensors / inductive loops, which are arranged one after the other in the direction of travel, to enable detection / determination in both possible directions of travel.
  • each is a different one Carry out calibration separately.
  • Sensors for determining the mass of vehicles and inductive loops and / or alternative sensors of comparable function for each lane are present in the sensor arrangement according to the invention.
  • sensors which are suitable for determining the mass or wheel loads.
  • sensors for detecting vehicles are preferably inductive loops, different types of inductive sensors and / or alternative sensors of comparable function. For this reason, it will generally be referred to below also to this type of sensors for detecting vehicles and only in the description of the invention, as sensors for detecting vehicles are mentioned.
  • Video cameras or radar technology are used.
  • the sensors for detecting vehicles it is actually only detected whether vehicles are driving in or next to the respective lane or that they are crossing the traffic lanes. All other important measurement signals required for an evaluation can be detected with the sensors for determining the mass. Alternatively and / or additionally, however, it is also possible to obtain all the information relating to the movement of the motor vehicles with the sensors to detect vehicles and to detect only the determination of the weight and / or the classification of motor vehicles with the sensors for determining the mass.
  • sensors which have a function comparable to inductive loops are understood to be sensors which realize a comparable function by means of other sensor principles.
  • this is to be understood as meaning sensors which can be installed under the road surface and which may also consist of a plurality of individual, row-shaped sensor elements.
  • coil housings encapsulated with at least one winding which can be connected to an electronic evaluation and control unit alone or with a plurality of such sensors, may be mentioned.
  • Such sensors are dimensioned so that they can be mounted below the road surface.
  • each vehicle passes first at least one sensor, then at least one sensor for detecting motor vehicles, then again at least one sensor, again at least one to again drive over at least one sensor within a lane.
  • inductive loops can be used alone with sensors for determining the mass but also in place of the inductive loops and / or alternative sensors of comparable function. It is also possible to use both inductive loops with sensors for determining the mass, and / or alternative sensors of comparable function. In the latter case, inductive loops, and / or alternative sensors of comparable function, for example, seen in the direction of travel may be arranged at different distances. So it can be chosen an alternate arrangement.
  • the sensors should be arranged in the lanes so that, in a normal run over, one wheel of each vehicle passes over a single sensor to determine the mass / wheel load and the other wheel of the same axle passes over a second sensor.
  • Sensors and inductive loops and / or alternative sensors of comparable function should be arranged identically in two adjacent lanes.
  • transponder loops for identifying and identifying calibration vehicles may be present on a lane. With transponder loops can then be a calibration, as in WO 2009/109158 A1 described be performed. Transponder loops should be present on lanes on which sensors for determining the mass are arranged. Recognition of calibration vehicles is otherwise possible only with a costly video surveillance or a blocking of the respective road for the remaining traffic.
  • Connecting lines of sensors and inductive loops and / or alternative sensors of comparable function of a lane should preferably be on one side of a lane and connecting lines of sensors and inductive loops and / or alternative sensors comparable function of a lane arranged next to this lane to the opposite side of the road and thereby the connecting lines of sensors and inductive loops and / or alternative sensors comparable function of the two lanes below the lane in secured form to the other side of the road and be led from there to a common electronic evaluation or storage unit for all sensors and inductive loops and / or alternative sensors of comparable function.
  • the connecting lines can be performed in a secured form below the roadway through a pipe (Schunterung) to the electronic evaluation unit at the roadside.
  • Such a secure guidance of the connecting lines can also be formed by a median strip to a roadway edge.
  • two sensors in the direction of travel should preferably be provided in front of at least one sensor for detecting vehicles, in particular an inductive loop (1) and / or an alternative sensor of comparable function, between two sensors for detecting vehicles and for at least one sensor for detecting vehicles be arranged, which are preferably aligned perpendicular to the direction of travel of the respective lane.
  • the measurement sensitivity can be increased, since usually only one wheel of a vehicle travels over one of the two sensors.
  • this can reduce the bending stress of the beam-shaped sensors and the wheel load of each individual vehicle wheel can be determined individually.
  • the respective wheel loads can be detected.
  • a determination of the respective vehicle type and also a determination of the speed of the vehicles traveling over can be achieved via pattern recognition.
  • the outermost passing lane of the lane can only be assigned at least two inductive loops and / or alternative sensors of comparable function, since it can be assumed that no heavy vehicles are traveling there and the determination of the mass / wheel load is there is not essential.
  • a plurality of sensors for detecting vehicles in particular a plurality of induction loops and / or a plurality of alternative sensors of comparable function in a row arrangement can be present in one lane, wherein the orientation of the row arrangement should preferably be perpendicular to the direction of travel. But it can also be aligned at a known angle to this vertical orientation.
  • the sensors for detecting vehicles in particular induction loops (1) and / or alternative sensors of comparable function, with a suitable design underneath the road surface of a road in a channel or a passage (eg a pipe), which is at least led to a road edge be arranged.
  • a suitable design underneath the road surface of a road in a channel or a passage eg a pipe
  • an embedding in the road surface which is associated with a correspondingly high cost in the production, maintenance and repair, no longer required.
  • the appropriate sensors are dimensioned correspondingly small with a few cubic centimeters in size.
  • An example of such sensors are the "micro loops" of the 3M Company.
  • a single sensor for detecting motor vehicles may be arranged.
  • a sensor for determining the mass is arranged at a distance, at a distance from this sensor can then be arranged two or more than two sensors for vehicle detection in a series arrangement.
  • the one sensor at least the arrival of a vehicle can be detected regardless of its size and design.
  • the multiple sensors for detecting motor vehicles can then be determined whether it is a larger, wider, longer vehicle. In this case, a pattern recognition can be helpful.
  • Inductive loops 1 are generally used in the examples. However, these could also be replaced by at least one or more alternative sensor (s) of comparable function.
  • FIG. 1 shows a lane with three lanes and additional lane for each direction of travel (6-lane highway).
  • the second passing lane at adjacent the median strip, no sensors 2 for determining the mass (weighing beam), but only two inductive loops 1 are present. It is assumed in this case that this lane is closed to heavy traffic and therefore a weighing is not of interest.
  • the inductive loops 1 By means of the inductive loops 1 but vehicles of heavy traffic can be detected on this lane and photographed.
  • the hard shoulder only two inductive loops 1 are also embedded, so that even there vehicles can be registered, drive with the right wheels on the hard shoulder and so try to circumvent the determination of mass / weighing.
  • the arrangement applies to the opposite lane (180 ° rotated by M1).
  • the connecting lines 1.1 and 2.1 for the inductive loops 1 and the middle sensor 2 can be performed in a joint in the road surface together on hard shoulder or on the second passing lane.
  • the sensors 2 and the inductive loops 1 are arranged so that the two inductive loops 1 seen in the direction of travel of each two individual sensors 2, which are associated with this lane, are included.
  • the inductive loops 1 are arranged centrally / symmetrically between the two sensors 2 seen in the direction of travel. As a result, symmetrical conditions can be maintained. This is not necessary with the transponder loops 3, since these are only used for the identification of calibration vehicles.
  • the connecting lines 1.1, 2.1 and 3.1 of the inductive loops 1 of the stationary strip and the lanes arranged next to them are guided directly to the electronic evaluation unit 4 arranged on a roadway side.
  • the connecting lines 1.1, 2.1 and 3.1 of the inductive loops 1 and the sensors 2 of the other two lanes are guided to the other side of the entire roadway, so in this case to the median strip and here the point M1. From there, they are guided underneath the road in the form of a piping to the other side of the road to the electronic evaluation unit 4.
  • the connecting lines 1.1 and 2.1 for the inductive loops 1 and the middle sensor 2 in a joint in the road surface be led together on hard shoulder and the fast lane.
  • FIG. 2 are two lanes with hard shoulder per direction of travel (4-lane highway or highway) shown.
  • 4-lane highway or highway 4-lane highway or highway
  • FIG. 1 Here are conditions as in the arrangement with three lanes according to FIG. 1 in front. Only the second fast lane including the corresponding inductive loops is eliminated. However, both lanes are equipped with sensors 2 and inductive loops 1. The arrangement applies to the opposite lane (180 ° rotated by M1).
  • connection lines 1.1 2.1 and 3.1 of the sensors 2 and inductive loops 1 of a lane and that of the lane are led to the one lane side and the connection lines 1.1, 2.1 and 3.1 of the sensors 2 and inductive loops 1 of the other lane are to the other lane side, in this case to the median strip to point M1 and from there, as in the example below FIG. 1 led to the electronic evaluation unit 4.
  • FIG. 3 shows an example of an arrangement according to the invention with two lanes (one-lane road with oncoming traffic) for both directions.
  • Each direction of travel has a symmetrical arrangement of sensors 2, inductive loops 1 and in this case also each one transponder loop 3.
  • the leadership of the connecting lines 1.1, 2.1 and 3.1 is analogous, as in the other two examples of the two lanes only once to the roadside and then again from one side directly to the electronic evaluation unit 4 and from the other side via the point M1 through a pipe (not shown) below the road to the electronic evaluation unit. 4
  • the FIG. 4 shows an example of a sensor arrangement in a two-lane road with additional hard shoulder.
  • the sensors 2 are arranged in a lane (main lane) with two inductive loops 1. In the second lane (overtaking) and in a hard shoulder only two inductive loops 1 are arranged.
  • the lane with the sensors 2 is additionally equipped with a transponder loop 3.
  • All connecting lines 1.1, 2.1 and 3.1 are guided to a road side to the electronic evaluation unit 4.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Traffic Control Systems (AREA)
  • Devices For Checking Fares Or Tickets At Control Points (AREA)
EP20120171320 2011-06-08 2012-06-08 Arrangement d'un capteur de détection, classification et pesage de véhicules motorisés sur route dans un trafic fluide Ceased EP2533223A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202011101716U DE202011101716U1 (de) 2011-06-08 2011-06-08 Sensoranordnung zur Erfassung, Klassifikation und Verwiegung von Kraftfahrzeugen auf Straßen im fließenden Verkehr

Publications (2)

Publication Number Publication Date
EP2533223A2 true EP2533223A2 (fr) 2012-12-12
EP2533223A3 EP2533223A3 (fr) 2013-12-25

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EP20120171320 Ceased EP2533223A3 (fr) 2011-06-08 2012-06-08 Arrangement d'un capteur de détection, classification et pesage de véhicules motorisés sur route dans un trafic fluide

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Country Link
EP (1) EP2533223A3 (fr)
CZ (1) CZ2011497A3 (fr)
DE (1) DE202011101716U1 (fr)
PL (1) PL217854B1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11756420B2 (en) 2020-08-27 2023-09-12 Q-Free Asa Vehicle detection system

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009109158A1 (fr) 2008-03-05 2009-09-11 Traffic Data Systems Gmbh Système et procédé de calibrage des capteurs d’un système de mesure et d’acquisition dynamiques de la charge de roue ou d’essieu de véhicules routiers

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5673039A (en) * 1992-04-13 1997-09-30 Pietzsch Ag Method of monitoring vehicular traffic and of providing information to drivers and system for carring out the method
CH689599A5 (de) * 1993-11-23 1999-06-30 Kk Holding Ag Aufnehmer-Anordnung zum Einbau in Fahrbahnen zwecks Erfassung der Gewichte und/oder der fahrdynamischen Reaktionen von Fahrzeugrädern.
CH697321B1 (de) * 1999-07-17 2008-08-15 Contraco Sa Verfahren und Vorrichtung zur Bestimmung des Fahrzeuggewichtes bei fahrenden Fahrzeugen.
WO2003094128A2 (fr) * 2002-04-29 2003-11-13 Inductive Signature Technologies, Inc. Capteurs de trafic monte en surface

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009109158A1 (fr) 2008-03-05 2009-09-11 Traffic Data Systems Gmbh Système et procédé de calibrage des capteurs d’un système de mesure et d’acquisition dynamiques de la charge de roue ou d’essieu de véhicules routiers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11756420B2 (en) 2020-08-27 2023-09-12 Q-Free Asa Vehicle detection system

Also Published As

Publication number Publication date
DE202011101716U1 (de) 2011-09-12
CZ2011497A3 (cs) 2013-01-16
PL217854B1 (pl) 2014-08-29
EP2533223A3 (fr) 2013-12-25
PL396501A1 (pl) 2012-12-17

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