EP0958564A1 - Dispositif de detection de vehicules - Google Patents

Dispositif de detection de vehicules

Info

Publication number
EP0958564A1
EP0958564A1 EP98909318A EP98909318A EP0958564A1 EP 0958564 A1 EP0958564 A1 EP 0958564A1 EP 98909318 A EP98909318 A EP 98909318A EP 98909318 A EP98909318 A EP 98909318A EP 0958564 A1 EP0958564 A1 EP 0958564A1
Authority
EP
European Patent Office
Prior art keywords
arrangement according
vehicle detector
detector arrangement
unit
frame
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
EP98909318A
Other languages
German (de)
English (en)
Inventor
Manfred Gabler
Walter Kuster
Elmar Reisinger
Erik Büchel
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.)
Siemens AG
Original Assignee
Siemens AG
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
Priority claimed from DE29701998U external-priority patent/DE29701998U1/de
Priority claimed from DE29710738U external-priority patent/DE29710738U1/de
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP0958564A1 publication Critical patent/EP0958564A1/fr
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • G01S13/04—Systems determining presence of a target
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G01S7/28—Details of pulse systems
    • G01S7/285—Receivers
    • 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
    • G08G1/04—Detecting movement of traffic to be counted or controlled using optical or ultrasonic detectors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
    • G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
    • G01S17/04—Systems determining the presence of a target

Definitions

  • the present invention relates to a vehicle detector arrangement according to the preamble of patent claim 1.
  • Vehicle detection for example for determining speeds, for counting vehicles or for classification, among other things for traffic management and traffic information systems, is becoming more and more necessary and desirable due to the increasing traffic density.
  • a device for identifying vehicles is described, for example, in DE 27 54 117 C2, it being necessary for the vehicles to be equipped with a response module which are evaluated at special reading points arranged in the lane area. Both equipping vehicles with readable response units and arranging reading stations in the lane area are relatively complex and cost-intensive.
  • the present invention is based on the object of specifying a vehicle detector arrangement for practical everyday use.
  • a permanent and permanent database should be recorded and made available for evaluation in order to enable meaningful traffic information and a traffic line adapted to the increasing traffic density, without having to be connected to an external power supply and data transmission cable.
  • the invention proposes that the transmitter / receiver unit, the energy supply unit and the control unit be accommodated in one housing and with the at least one detector unit. are connected, at least one solar cell module being arranged on an outside of the housing.
  • the vehicle detector arrangement according to the invention is a compact central unit which can be used flexibly, the elements which can be combined for one or more detector elements being accommodated in a housing, for example made of plastic.
  • a central unit can be arranged on buildings, bridges and the like by means of a supporting structure, but can also be attached to support masts and the like. Due to the energy supply by a solar cell module and the transmitting / receiving device, the vehicle detector arrangement thus works autonomously and no complex installation work is necessary.
  • the connection between the central unit and the at least one detector unit can also be established mechanically by means of a support unit. Detector units can also be positioned completely separately from the housing and electrically connected to the central unit.
  • the detector unit one or more, has at least one passive infrared sensor.
  • the electrical circuit can be such that there is only minimal power consumption.
  • the at least one sensor element can be arranged in a separate housing, for example a cylindrical housing with a front lens cover.
  • a detector unit comprises a plurality of sensors, with oscillating and non-oscillating sensors being combined. In an advantageous manner, three post-oscillating sensors are combined with one non-post-oscillating sensor.
  • the detector unit comprises additionally or alternatively ⁇ radar sensors or additionally or alternatively, microwave sensors. The combinations of post-oscillating and non-post-oscillating sensors or the use of different sensors according to the invention further improve the detection properties.
  • the invention proposes that the vehicle detector arrangement can be switched between a sleep mode and an active mode. This switchover takes place automatically, for example after detection of a certain minimum number of vehicles, after the end of a detection-free time or the like.
  • the solar cell module be adjustable. Since in particular an inclination angle tracking considerably improves the utilization of sunlight, an automatic solar cell module tracking can also be provided according to the invention.
  • An essential aspect of the vehicle detector arrangement according to the invention is the extremely favorable current balance.
  • a battery and a solar panel are each connected to a charge controller.
  • the battery and charge controller are designed for a nominal 12 V.
  • the solar panel delivers, for example, 5 to 6 W.
  • the charge controller is connected to a voltage converter, which supplies the subsequent detector circuit with a nominal 6 V.
  • Such a circuit enables a current consumption of approximately 4.75 mA at 12 V.
  • the current balance shows a line consumption of a maximum of 36 mW for a detector unit.
  • the power converter's power loss is approximately 20%, ie approximately 9 mW.
  • the charge controller has its own consumption, which is approximately 12 mW.
  • the vehicle detector arrangement according to the invention thus works almost autonomously and, due to its structure, is extremely inconspicuous.
  • PIR technology makes use of existing long-wave infrared radiation, which every body emits above absolute zero (- 273 ° C).
  • energy does not have to be sent and received again.
  • Practically radiation contrasts are determined, both positive and negative contrasts.
  • the ambient temperature thus plays a negligible role, since the total thermal radiation change is recorded, as a result of which the detection is almost independent of the radiation frequency or the wavelength.
  • the radiation contrast is, among other things, a function of the size and the emission factor of the surface of a vehicle moving in or through the detection area. To obtain sufficiently precise measured values, a time-stable sequence of measured values is first waited for before the actual measurement.
  • the principle of a detector unit for solving the task is based on the detection of a vehicle that moves in the direction of travel through several spatially separated zones that form the detection area. These at least two zones result from the optical imaging of corresponding sensor elements by means of a suitable lens arrangement and the evaluation of the resulting sensor signals.
  • the speed information can be determined from the time it takes a vehicle to get from zone 1 to zone 2.
  • the vehicle length is calculated from the determined speed and the length of time a vehicle stays in one of the zones.
  • more than the required Chen selected two zones and used both reverberating and non-reverberating sensors and evaluated the resulting signals in order to still be able to output information to the control unit if a detector function is impaired and even if one sensor fails (measurement redundancy).
  • the intensity and chronological sequence of the radiation changes caused in this way can vary greatly due to the weather conditions in the course of the day and the year and depending on the traffic flow.
  • the resulting amplitudes and temporal sequences of the signals of each sensor element are continuously determined and processed for control purposes.
  • This regulation can, for example, affect the properties of the amplification of the sensor signals or the response thresholds of the signal processing and is particularly advantageous because it means that both the amplifier and the signal evaluation operate in an optimal range under all weather conditions and traffic situations and the detector unit delivers very reliable results .
  • the physical principle of detection due to the change in heat radiation is also particularly favorable because it allows detector units to be implemented with an autonomous, solar-powered supply with essentially very low energy consumption.
  • the same physical principle allows detector units to be mounted to the side of the lane, so that the detection area is directed obliquely from above onto the lane to be monitored. This circumstance is particularly advantageous if no bridge construction is available for the assembly of the detector units.
  • the choice and arrangement of the infrared sensors as well as the subsequent amplification and signal evaluation, in addition to moving vehicles, can also be used to detect vehicles that have been stationary for a long time in order to have information about the traffic situation, especially in traffic jams.
  • the signal evaluation is also able to monitor the correct function of the detector unit and its individual components as well as the correct alignment of the detector unit with respect to the lane to be monitored and to output a correspondingly coded message to the control unit in the event of a fault.
  • Corresponding circuits can also be used to set sleep modes so that, for example, information is only forwarded via the transceiver unit, in particular the radio modem, only on the basis of certain parameters determined by the control unit. For example, transmission conditions can be determined according to the program. The transmissions take place, for example, via the SMS (short message system) band of a mobile radio network to a traffic control center.
  • the detector device has a detector for each lane of the traffic area to be monitored, which is arranged above the traffic area level and can be detected by means of the traffic movements in the lane assigned to it.
  • a detector is assigned to each lane makes it possible to precisely record all the traffic taking place on the traffic area, since each lane is only designed for one vehicle with regard to its width. Vehicles passing through a certain area of the traffic area at the same time can thus also be detected individually.
  • the detectors above the traffic area level the traffic taking place in each lane can be detected without interference. With such a tig configured vehicle detector arrangement, reliable data regarding the traffic density can be obtained, which can be advantageous in the context of a parking guidance system or a traffic jam monitor or the like. let be used.
  • the processing device of the vehicle detector arrangement according to the invention is a central unit, to which all detectors of the vehicle detector arrangement are connected by suitable cabling. This considerably reduces the effort for processing and forwarding the data obtained by the detectors of the vehicle detector arrangement.
  • the central unit can also advantageously be arranged above the traffic area level. To protect the central unit against vandalism or the like. it is advantageous to arrange them in a cylindrical metal, in particular steel, container closed on one side by means of a plastic dome 1. In connection with the arrangement of the central unit above the traffic area level, there is thus the risk of vandalism or the like. largely excluded.
  • the plastic dome can advantageously be formed from polyamide or polyester, the plastics mentioned having the required mechanical strength on the one hand, but on the other hand for radio waves or the like. are permeable, so that an antenna of the central unit can expediently be arranged in the region of the plastic dome.
  • each frame of the vehicle detector arrangement according to the invention advantageously has a pivotable section which consists of an outside arranged of the railing is pivotable into a position arranged above the bridge structure.
  • a fixed attachment of the vehicle detector arrangement or the frame above the traffic area on the bridge structure can be achieved if the frame is positively connected to the railing via at least three filler rods, the frame advantageously at two points via the at least three filler rods of the railing should be connected.
  • the frame should have two horizontal fastening arms that protrude from the outside of the railing, which are firmly connected to the railing at one end. This allows the functional unit to be attached in the case of this is located on the frame above the traffic area without the intermediary of the bridge structure.
  • the frame has a vertical mounting rail which is attached to the ends of the two horizontal fastening arms remote from the railing.
  • the frame has a slide that is displaceable in the vertical direction on the mounting rail, it is possible to position the detectors and the central unit of the vehicle detector arrangement according to the invention in any vertical position in a certain range on one side of the bridge structure, as a result of which the accessibility of the Vehicle detector arrangement for unauthorized persons can be significantly restricted. In this way, vandalism and other willful damage can be largely excluded.
  • the pivotable section of the frame can expediently be designed as a pivot arm which is pivotally and fixably mounted on the slide at one end and carries the detectors or the central unit of the vehicle detector arrangement at its other end.
  • a pivotable arrangement of the detectors or the central unit of the vehicle detector arrangement as well as a positioning of the same which can be adjusted in the vertical direction, in a comparatively inexpensive manner. Due to the swiveling arrangement, work involved in assembly or maintenance can always be carried out above the bridge structure, i.e. above the bridge structure, which on the one hand reduces the risk to the assembly and maintenance personnel and on the other hand leads to a risk to the traffic area below the bridge road users using the factory is significantly reduced due to falling objects.
  • the vertical adjustment of the slide which is slidably mounted on the support rail of the frame in the vertical direction, can be carried out in a simple manner by means of a lifting device which can be plugged onto the vertical support rail and has a cable winch, the cable of which can be connected to the slide and by means of which the slide can be moved vertically is until the swivel arm of the frame is arranged above an upper spar of the railing of the bridge structure.
  • the swivel arm can then be raised by means of the lifting device until it moves from its position located above the bridge structure above the traffic area to its position above the bridge structure arranged position can be pivoted.
  • the swivel arm can then be lowered by means of the lifting device or by releasing the winch until it rests on the upper rail of the railing, which results in further securing of the swivel arm and thus the detectors or the central unit in the position assumed.
  • a fixed attachment of the swivel arm to the slide and a possibility to pivot the swivel arm in relation to the slide in a simple manner, if necessary, is made possible if the swivel arm is connected to the slide by means of a swivel pin and a socket pin, the socket pin can be pulled out of its position connecting the swivel arm and the slide and the swivel arm can then be swiveled about the swivel pin with respect to the slide.
  • a fixed attachment of the slide and thus the detectors or the central unit of the vehicle detector arrangement in a position lowered as far as possible from the bridge structure, in which the accessibility of the central unit or the detectors is considerably reduced, is achieved if the mounting rail is in its position has an end stop for the carriage and a blocking device by means of which the carriage can be blocked at the lower end stop.
  • the swivel arm is in comparison to the fastening arms, the further the central unit or the detectors of the vehicle detector arrangement can be moved from the edge of the bridge structure to the center of the bridge structure when assembly, repair and / or maintenance work is required.
  • each frame has a fall protection device, which is on the one hand on the frame and on the other hand on at least one railing post is attached, which is arranged between a lower spar of the railing and the bridge structure.
  • FIG. 1 shows a detector unit of a vehicle detector arrangement according to the invention with two detectors provided for two middle lanes on a bridge structure;
  • FIG. 2 shows a side view of the detector unit shown in FIG. 1;
  • 3 shows a detector unit attached to a mast with two detectors which are provided for monitoring the two middle lanes of a lane; 4 shows two detectors attached to roadside masts, by means of which the outer lanes of a four-lane roadway can be monitored;
  • FIG. 5 shows a side view of a central unit which is arranged on a frame which is in turn attached to a railing of a bridge structure;
  • FIG. 6 shows a representation corresponding to FIG. 5, in which a detector is provided instead of the central unit; 7 shows a representation corresponding to FIG. 5 with further details of the frame;
  • FIG. 8 shows a top view of the central unit shown in FIG. 7 together with the frame
  • FIGS. 7 and 8 shows a side view of a lifting device in use
  • 10 shows a front view of the central unit shown in FIGS. 7 and 8 sitting on the frame
  • 11 and 12 show two further alternative arrangements of vehicle detectors; 13 shows a schematic view of an exemplary embodiment of a detector unit;
  • a detector unit 7 with two detectors 8, 9 is attached to the bridge structure 6 above the median strip 5.
  • Lane 3 is monitored by detector 8 and lane 2 is monitored by detector 9.
  • Each traffic movement detected in the lanes 2 and 3 is sent to a central unit (not shown in FIG. 1) by the detectors 9 and 8, respectively forwarded, processed there and via a transmitting / receiving unit, for example a radio modem, to a traffic control center or the like. forwarded.
  • the transmission takes place, for example, via the SMS (short message service) band of a mobile radio network.
  • the central unit and further detectors or detector units are attached and arranged in a similar manner on the bridge structure, further detectors detecting the further lanes 1 and 4.
  • FIG. 2 shows a frame 10 by means of which the detector unit 7 is attached to a railing 11 of the bridge structure 6.
  • the frame 10 will be described in more detail later.
  • FIG. 3 shows an arrangement essentially corresponding to FIG. 1, but the detector unit 7 with the detectors 8, 9 is attached to a mast 12 which is set up on the median strip 5 of the motorway.
  • further masts 13, 14 can be set up on the side of the freeway, to which further detectors 15, 16 are attached, by means of which the traffic movements in the outer lanes 1, 4 of the freeway can be detected.
  • the frame 10 shown in FIG. 5 is used to hold a central unit 17 of the vehicle detector arrangement according to the invention above a traffic area located under the bridge structure 6 and not shown in FIG.
  • the holder of the central unit 17 is designed such that the central unit 17 is arranged next to the bridge structure 6 above the traffic area.
  • the frame 10 has two fastening arms 18, 19 which are arranged one above the other in the vertical direction and run horizontally parallel to one another.
  • the fastening arms 18, 19 are fixedly connected at one end by means of retaining tabs 20 to three filler bars 21 of the railing 11, as can be seen in particular from FIG.
  • retaining tabs 20 By means of the retaining tabs 20, a non-positive connection between the fastening arms 18, 19 and the filler rods 21 of the railing 11 is created, with no damage to the railing 11 occurring.
  • a vertically extending support rail 22 is attached to the ends of the fastening arms 18, 19 remote from the railing and extends parallel to the filler bars 21 of the railing 11 on the outside thereof from the upper edge of the railing to under the cap of the bridge structure 6.
  • a slide 23 is mounted on the support rail 22 so as to be displaceable in the vertical direction, from which a swivel arm 24 extends in the direction opposite the railing 11, and the central unit 17 is attached to the end of the slide remote from it.
  • the swivel arm 24 is connected to the carriage 23 by means of a swivel pin 25 and a pull-out pin 26. If, in addition to the swivel pin 25, the socket pin 26 also passes through the slide-side and the swivel arm-side receptacles, the swivel arm 24 is fixedly attached to the slide 23. A pivoting of the swivel arm 24 with respect to the carriage 23 is then not possible. When the plug pin 26 is pulled out of the slide-side and pivot arm-side receptacles, the pivot arm 24 can be pivoted with respect to the carriage 23 about the pivot pin 25.
  • the central unit 17 attached to the end of the swivel arm 24 remote from the slide is arranged in a cylindrical steel container 27 which is closed at its upper end by means of a plastic dome 28.
  • An antenna 28 ′ of the central unit 17 required for forwarding data is arranged in the area of the plastic dome 28 in order to enable the sending of data without impairment.
  • the central unit 17 is provided with a solar panel 29, by means of which solar energy can be converted into the electrical energy required for the energy supply of the central unit 17.
  • FIG. 6 shows a frame 10 corresponding to that in FIG. 5, on which a detector 30 is held instead of the central unit 17.
  • the frame 10 shown in FIG. 6 corresponds to that in FIG. 5.
  • the lifting device 31 includes a stop tube 32, which can be inserted into the support rail 22 of the frame 10 from above. Furthermore, the lifting device 31 has a cable winch 33, by means of which a cable running around a cable pulley 34 at the upper end of the stop tube 32
  • the pivot arm 24 can then be pivoted about the pivot pin 25 from its position arranged on the outside of the railing 11 into a position arranged on the inside of the railing 11 above the bridge structure 6, in which there is no danger
  • FIGS. 11 and 12 show different arrangements of detector units 37, 38 for monitoring a total of four lanes 1, 2, 3, 4 by means of boom masts 39, a T-boom mast being used in FIG. 11. Such arrangements can detect multiple tracks and are also suitable for six and multi-track recordings.
  • FIG. 13 is a preferably cylindrical housing 41, for example a metal housing, which can be closed on an open side with a lens 42.
  • a plastic Fresnel lens be arranged behind a plastic protective film.
  • a circuit board 43 for example with the sensors and amplifiers, and a circuit board 44, for example for signal processing, evaluation and communication interface, are arranged inside.
  • the sensors 45 are, for example, PIR sensors.
  • the connecting cable 46 is guided into the housing 41 in a watertight manner. It is used for energy supply and data exchange, so that several lines are routed within the cable.
  • FIG. 1 An exemplary embodiment of a basic circuit diagram for such a detector unit is shown in FIG.
  • the passive infrared radiation (PIR) is then focused by the lens 42 on the one hand on resonant sensors 47, 48 and 49 and, in addition, on a non-resonant sensor 50.
  • the oscillating sensors have, for example, lithium tanthalate or PVDF, the non-oscillating sensor can be, for example, a cooled photovoltaic sensor or a thermopile sensor.
  • the output signals of these sensors are preprocessed in a control unit by means of the amplifiers 51 and fed to the signal processing 52. Relevant traffic data is already at the exit, for example in the form of speed, vehicle length, length of stay, etc. before and are provided in memory 53.
  • a database can be called up from the memory via the communication interface 54 as the radio modem of the transmitting / receiving unit.
  • the voltage stabilizer 55 ensures a uniform supply of energy.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Traffic Control Systems (AREA)
  • Testing Or Calibration Of Command Recording Devices (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

L'invention concerne un dispositif de détection de véhicules comportant au moins une unité de détection (8) dotée d'au moins un capteur (47, 48, 49, 50), une unité émetteur/récepteur (54), une unité d'alimentation en énergie et une unité de commande (51, 52, 53), l'unité d'alimentation en énergie comprenant un module solaire (3). L'unité émetteur/récepteur (54), l'unité d'alimentation en énergie et l'unité de commande (51, 52, 53) sont logées dans un boîtier (27, 28) et reliées à la ou aux unité(s) de détection (8), le module solaire étant fixé sur le côté extérieur dudit boîtier (27, 28). Etant donné que ce dispositif de détection de véhicules fonctionne ainsi de façon autonome, il peut être fixé simplement, par exemple, sur un pont (6), et des travaux d'installation coûteux pour l'alimentation en courant et la transmission de données, par exemple à une centrale de guidage du trafic, sont évités.
EP98909318A 1997-02-05 1998-02-03 Dispositif de detection de vehicules Ceased EP0958564A1 (fr)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
DE29701998U 1997-02-05
DE29701998U DE29701998U1 (de) 1997-02-05 1997-02-05 Autark arbeitender Fahrzeugdetektor
DE29709286U 1997-05-27
DE29709286U DE29709286U1 (de) 1997-02-05 1997-05-27 Fahrzeugdetektor-Anordnung
DE29710738U 1997-06-19
DE29710738U DE29710738U1 (de) 1997-06-19 1997-06-19 Überwachungsvorrichtung für eine Verkehrsfläche
PCT/DE1998/000294 WO1998035330A1 (fr) 1997-02-05 1998-02-03 Dispositif de detection de vehicules

Publications (1)

Publication Number Publication Date
EP0958564A1 true EP0958564A1 (fr) 1999-11-24

Family

ID=27219922

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98909318A Ceased EP0958564A1 (fr) 1997-02-05 1998-02-03 Dispositif de detection de vehicules

Country Status (9)

Country Link
US (1) US6417783B1 (fr)
EP (1) EP0958564A1 (fr)
CN (1) CN1246948A (fr)
BR (1) BR9807661A (fr)
CA (1) CA2279465A1 (fr)
HU (1) HUP0000611A3 (fr)
NO (1) NO993793L (fr)
PL (1) PL334777A1 (fr)
WO (1) WO1998035330A1 (fr)

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WO1998035330A1 (fr) 1998-08-13
NO993793L (no) 1999-09-23
HUP0000611A2 (hu) 2000-06-28
BR9807661A (pt) 2000-02-15
US6417783B1 (en) 2002-07-09
PL334777A1 (en) 2000-03-13
HUP0000611A3 (en) 2000-07-28
CA2279465A1 (fr) 1998-08-13
NO993793D0 (no) 1999-08-05
CN1246948A (zh) 2000-03-08

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