EP1321915A2 - Verkehrsüberwachungsvorrichtung - Google Patents

Verkehrsüberwachungsvorrichtung Download PDF

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Publication number
EP1321915A2
EP1321915A2 EP02027395A EP02027395A EP1321915A2 EP 1321915 A2 EP1321915 A2 EP 1321915A2 EP 02027395 A EP02027395 A EP 02027395A EP 02027395 A EP02027395 A EP 02027395A EP 1321915 A2 EP1321915 A2 EP 1321915A2
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EP
European Patent Office
Prior art keywords
transceiver
control unit
signals
road
hereinbefore
Prior art date
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Withdrawn
Application number
EP02027395A
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English (en)
French (fr)
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EP1321915A3 (de
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designation of the inventor has not yet been filed The
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JET RESEARCH Srl
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JET RESEARCH Srl
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Publication date
Application filed by JET RESEARCH Srl filed Critical JET RESEARCH Srl
Publication of EP1321915A2 publication Critical patent/EP1321915A2/de
Publication of EP1321915A3 publication Critical patent/EP1321915A3/de
Withdrawn legal-status Critical Current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
    • 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

Definitions

  • the present invention concerns an apparatus to monitor vehicle traffic in a road, such as a motorway, a main road or suchlike, with which it is possible to control and manage in real time both the traffic of vehicles in movement and also any possible anomaly caused by accidents or otherwise.
  • the monitoring apparatus uses devices which are easy to install and maintain, arranged along the road and able to be adapted to the different traffic conditions.
  • the apparatus can also be used in association with devices located on board the vehicles passing and able to transmit/receive service signals.
  • the control center is connected to luminous panels located along the roads monitored.
  • An operator coordinates and manages from the control center all the information to be supplied by means of the luminous panels, to signal to the road users the traffic situation on the roads they are driving along.
  • Devices to monitor traffic and to signal an accident have the disadvantage that they do not allow to signal a situation of heavy traffic situation or an accident in real time and in a sure manner to the vehicles which are approaching, so as to prepare the drivers to modify their driving conditions sufficiently in advance.
  • the emergency telephones cannot be used if the people concerned are unable to move, as for example in the case of serious accidents, or motorway "pile-ups".
  • the Applicant has devised and embodied the present invention to overcome these shortcomings, and to obtain further advantages.
  • One purpose of the invention is to achieve an apparatus to monitor vehicle traffic with which it is possible to identify anomalies in the traffic and possible accidents in real time and also in conditions of poor visibility.
  • Another purpose of the present invention is to achieve an apparatus with which to monitor the traffic in a continuous and uniform manner, in a whole section of road, even extensive.
  • a further purpose of the present invention is to achieve an apparatus to monitor vehicle traffic with which it is possible to signal anomalies in the traffic, practically in real time, also to vehicles which are upstream of the anomaly and which are not equipped with signaling devices or devices to receive alarms.
  • the apparatus comprises sensor means which are arranged at intervals along the carriageway of a road, to detect the presence of each vehicle passing along the road and to emit a corresponding transit signal.
  • Transceiver devices connected to the sensor means, are able to receive and process the transit signal in order to generate a corresponding processed signal and to send it to at least a control unit. The latter is able to coordinate the transceiver devices and send the processed signals to an operational traffic control center.
  • the transceiver devices are located in fixed positions at pre-determined distances from each other, between about 50 and 200 m along a road and are able to receive and process the signals arriving from the sensors.
  • the sensors used consist of seismographs, geo-graphs, microphones or suchlike, which are able to detect the elastic vibrations or the sound waves due to the passage of the vehicles.
  • a pre-determined number of sensors for example from 2 to 10, is connected to each transceiver device.
  • Each transceiver device to which a code to identify position by the control unit is assigned, is connected chain-wise with other transceiver devices so as to form groups of about 10-40 units, managed by the control unit.
  • Each transceiver device can send processed alarm signals or traffic anomaly signals, not only to the control unit but also to the other transceiver devices to which it is connected, or send and/or receive signals from vehicles provided with terminals for short-range transmission/reception.
  • short-range we mean a transmission radius of between about 50 and 200 meters.
  • each transceiver device When sudden variations in the type of vibration of the ground occur, or excessive noises with respect to a traffic situation considered normal and standard, the signals arriving from the sensors and processed by each transceiver device are interpreted as alarm signals.
  • Each control unit receiving from and sending to the transceiver devices the various signals indicative of the same interval between two vehicles, but translated in time, is able to evaluate, in real time, the certainty of the possible alarm.
  • the alarm is sent in this way in real time from the control unit, through the operational center, to a road information service or an emergency center.
  • the apparatus 10 to monitor vehicle traffic comprises a plurality of peripheral transceiver units 11 arranged at regular intervals on each side of a road 15, in which vehicles 14 are able to pass.
  • the peripheral units 11 are connected to each other by cable so as to form groups of around 10-40 units.
  • Each of these groups is managed by a corresponding central processing unit 12 or control unit, which is also located along the side of the road 15 in a substantially median zone between the different peripheral units 11 which it controls.
  • All the central processing units 12 are connected by cable both with each other and also with an operational center 13 from which the traffic situation is controlled over an entire road 15, even of a large extension.
  • the vibrations and sound waves, which together we shall call transit signals ST, are detected and recorded by a plurality of sensors 16, in this case consisting of seismographs or geo-graphs located in the ground and/or microphones, infrared sensors, electromagnetic wave radar, ultrasound radar, located on the side of the carriageway.
  • Each peripheral unit 11 (figs. 2 and 3) is connected to a set number of sensors 16, for example three, and comprises: a unit 17 to manage the sensors 16 in order to select and "clean" the transit signals ST; a first microprocessor 18 to process the transit signal ST to generate a processed signal SE; a first short-range radio transceiver 19; a memory 21, in which the code identifying the position of the peripheral unit 11 is memorized; and an interface 22 connected to a line 30 of the cable connection network, which is connected to the other peripheral units 11 and with the corresponding central processing unit 12.
  • the same line 30 can be shared by several peripheral units 11 by means of a TDM (Time Division Multiplexing, i.e. a time division technique for sharing a transmission means/channel) or FDM (Frequency Division Multiplexing, i.e. a frequency division technique for sharing a transmission means/channel).
  • TDM Time Division Multiplexing
  • FDM Frequency Division Multiplexing
  • Each peripheral unit 11 is fed by means of an electric cable arranged in the line 30 connecting to the central processing unit 12, fed by the network of the operational center 13.
  • the plurality of transit signals ST, recorded by the sensors 16 nearest the point of transit of the vehicle on the road, is collected and managed by the unit 17 which manages the peripheral unit 11 connected thereto and processed by the first microprocessor 18.
  • the processed signal SE is transmitted from the peripheral unit 11 by means of the interface 22 to the connection network 30 and from this to the central processing unit 12 and/or, by means of the first transceiver 19, also to the vehicles 14 passing in the short-range area with respect to the peripheral unit 11, also provided with short-range transceiver terminals 23 (fig. 5) to receive or signal possible emergency situations.
  • the central processing unit 12 (fig. 4) comprises: a first interface 42 connected to the line 30 connecting to the peripheral units 11 to receive and/or send the processed signal SE; a second DSP microprocessor 24 (Digital Signal Processing, i.e. a processor for processing digital signals) to further process the processed signal SE to generate a first alarm signal SA and to identify the position of the accident or traffic anomaly; and a second interface 26 connected with the other central processing units 12 and the operational center 13.
  • the first interface 42 can advantageously be equal to the interface 22 of the peripheral unit 11.
  • the central processing units 12 can advantageously be located in the roadside emergency telephones already present and already fed electrically, which are normally located every two kilometers along the roads 15.
  • Each central processing unit 12 is also equipped with sirens and/or flashing lights 25 to communicate visually possible accidents to all drivers, even to those vehicles 14 which are not equipped with transceiver terminals 23.
  • Each transceiver terminal 23 (fig. 5) installed on board a vehicle 14 comprises, for example, a second low power transceiver 27, in the range of 1-10 mW, for receiving a processed signal SE from a peripheral unit 11 and/or transmitting a second short-range alarm signal on the radio, for example on the 433 MHz band, or the 2.4 GHz radio frequency band, which are so-called free frequencies with greater capacity for traffic; a third microprocessor 28 to process the processed signal SE transmitted by the peripheral unit 11 to generate the second alarm signal; a led or alphanumerical display 29 and beepers to show the emergency situation inside the vehicle 14; a membrane keyboard 31 connected to the third microprocessor 28.
  • the transceiver terminals 23 are of limited size, in the range of about 12x7x2 cm, and are fed at 12 or 24 V by means of a connector which can be connected to the electric feed socket of the vehicle 14 itself.
  • each peripheral unit 11 receives the transit signals ST 1 , ST 2 , ...ST n detected by the sensors 16 connected thereto.
  • the transit signals ST can be similar to each other (fig. 9), as in the case of regular traffic, or different from each other in the case of traffic variations.
  • the transit signals ST are processed by the peripheral units 11 into processed signals SE, which are sent to the peripheral unit 11 adjacent and upstream with respect to the first and/or central processing unit 12.
  • a peripheral unit 11 receives an anomalous processed signal SE directly from a peripheral unit 11 downstream which has detected this anomalous situation, or receives the first alarm signal SA from a central processing unit 12 or from a vehicle 14 equipped with a transceiver terminal 23.
  • each central processing unit 12 manages the processed signals SE arriving from all the peripheral units 11, so as to process and send the first alarm signal SA or warning signal to a peripheral unit 11 to warn of a possible accident, or to other central processing units 12 and to the operational center 13 to which it is connected.
  • each peripheral unit 11 is also able to transmit and receive short-range signals by radio, on a frequency of 433 MHz, or 2.4 GHz, to/from an adjacent peripheral unit 11 or to a central processing unit 12, which is in a range of 50-200 meters, thus eliminating the connection cable of the peripheral units 11.
  • Each peripheral unit 11 also comprises a third transceiver 32 for the transmission and reception of processed signals SE from and to other peripheral units 11, and to the central processing unit 12, also provided with a third transceiver 32.
  • each peripheral unit 11 receives processed signals SE from an adjacent peripheral unit downstream and transmits via radio to an adjacent peripheral unit 11 upstream.
  • the processed signal SE is transmitted from one peripheral unit 11 to the next as far as the central processing unit 12.
  • each central processing unit 12 manages groups of about 10-40 peripheral units 11.
  • each peripheral unit 11 (fig. 8) is fed by means of a solar panel battery 36 and comprises an accumulator, connected to the solar panel 36, and a control unit 37 of the accumulator.
  • the absence of connection cables makes it easier to position and locate the peripheral units 11 along the carriageway of the road 15.
  • each peripheral unit 11 is provided with one or more cameras 40, able to film the events which occur along the road 15.
  • the images taken are transmitted, for example, in a short-range from one peripheral unit to the other until they reach the central processing unit 12 and from this to the operational center 13 using the same connection network 30, to allow a control, even visual, of the situation of the vehicle traffic on the road 15.
  • each peripheral unit 11 comprises a GPS (Global Positioning System) localizing antenna and a card to decode and process the position coordinates, connected to the first microprocessor 18. In this way each peripheral unit 11 sends to another peripheral unit 11 and/or to the central processing unit 12 a processed signal SE associated with a signal indicating the position.
  • GPS Global Positioning System
  • the positioning and repositioning of the peripheral units 11 is automatically configured by the GPS.
  • the advantage of using GPS antennas is that in this way it is possible to eliminate the process of manually assigning the positioning of each peripheral unit 11 within the connection network which connects any peripheral unit 11 to the central processing unit 12.
EP02027395A 2001-12-12 2002-12-09 Verkehrsüberwachungsvorrichtung Withdrawn EP1321915A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITUD20010205 ITUD20010205A1 (it) 2001-12-12 2001-12-12 Apparato per il monitoraggio del traffico
ITUD20010205 2001-12-12

Publications (2)

Publication Number Publication Date
EP1321915A2 true EP1321915A2 (de) 2003-06-25
EP1321915A3 EP1321915A3 (de) 2003-12-17

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EP02027395A Withdrawn EP1321915A3 (de) 2001-12-12 2002-12-09 Verkehrsüberwachungsvorrichtung

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EP (1) EP1321915A3 (de)
IT (1) ITUD20010205A1 (de)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004088610A2 (en) * 2003-04-01 2004-10-14 Wireless Traffic Technologies Pty Limited Traffic control system
WO2004100103A1 (en) * 2003-05-07 2004-11-18 Koninklijke Philips Electronics N.V. Event detection system
DE10349479B3 (de) * 2003-10-21 2005-07-14 Siemens Ag Vorrichtung zur Lokalisierung von Verkehrsunfällen
EP1835308A1 (de) * 2006-03-16 2007-09-19 SmartTrig AB Detektionseinheit und Verfahren zu ihrer Verwendung
ES2350551A1 (es) * 2010-08-06 2011-01-25 Universidad De Málaga Sistema y procedimiento de gestion de trafico.
JP2013097550A (ja) * 2011-10-31 2013-05-20 Sumitomo Electric System Solutions Co Ltd 車両通行判定装置、交通信号制御装置、コンピュータプログラム、車両通行判定方法、及び交通信号制御方法
EP2659471A2 (de) * 2010-12-30 2013-11-06 Sensys Networks, Inc. Drahtlose und drahtgebundene sensorknoten, micro-radar, netzwerke und systeme
EP2733688A1 (de) * 2012-11-14 2014-05-21 Wolfsburg AG Fahrzeuginformationseinrichtung, Fahrzeugkommunikationseinheit sowie Verfahren zur Übertragung von für den Straßenverkehr in einem räumlichen Gebiet nützlichen Informationen
EP3996064A1 (de) * 2020-11-10 2022-05-11 IFP Energies nouvelles Verfahren zur bestimmung einer anzahl von fahrzeugdurchfahrten auf mindestens einem strassenabschnitt eines strassennetzes

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1568270A (de) * 1968-03-21 1969-05-23
GB2159995A (en) * 1984-06-01 1985-12-11 Gec Avionics Vehicle detection system
EP0357893A2 (de) * 1988-09-08 1990-03-14 Hans Dr. Fabian Verfahren zum Messen des Verkehrsflusses auf Strassen
US5107250A (en) * 1980-01-07 1992-04-21 The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland Detection of moving objects
DE4102381A1 (de) * 1991-01-28 1992-07-30 Abb Serienprodukte Ges M B H Stauwarnanlage
DE19641140A1 (de) * 1996-10-05 1998-05-28 Henry Tunger Automatisch aktivierbare Draht-/drahtlos kommunizierende Signalisierungsvorrichtung für (eskalierende) Fahrzeugstaus
DE19738646A1 (de) * 1997-09-04 1999-03-11 Inst Automation Und Kommunikat Vorrichtung und Verfahren zur verteilten Verkehrszustandserfassung
DE10049516A1 (de) * 1999-10-07 2001-04-12 Denso Corp Kommunikationsverfahren mit drahtlosem Nahbereichs-Kommunikationssystem

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1568270A (de) * 1968-03-21 1969-05-23
US5107250A (en) * 1980-01-07 1992-04-21 The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland Detection of moving objects
GB2159995A (en) * 1984-06-01 1985-12-11 Gec Avionics Vehicle detection system
EP0357893A2 (de) * 1988-09-08 1990-03-14 Hans Dr. Fabian Verfahren zum Messen des Verkehrsflusses auf Strassen
DE4102381A1 (de) * 1991-01-28 1992-07-30 Abb Serienprodukte Ges M B H Stauwarnanlage
DE19641140A1 (de) * 1996-10-05 1998-05-28 Henry Tunger Automatisch aktivierbare Draht-/drahtlos kommunizierende Signalisierungsvorrichtung für (eskalierende) Fahrzeugstaus
DE19738646A1 (de) * 1997-09-04 1999-03-11 Inst Automation Und Kommunikat Vorrichtung und Verfahren zur verteilten Verkehrszustandserfassung
DE10049516A1 (de) * 1999-10-07 2001-04-12 Denso Corp Kommunikationsverfahren mit drahtlosem Nahbereichs-Kommunikationssystem

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004088610A2 (en) * 2003-04-01 2004-10-14 Wireless Traffic Technologies Pty Limited Traffic control system
WO2004088610A3 (en) * 2003-04-01 2004-11-18 Wireless Traffic Technologies Traffic control system
WO2004100103A1 (en) * 2003-05-07 2004-11-18 Koninklijke Philips Electronics N.V. Event detection system
DE10349479B3 (de) * 2003-10-21 2005-07-14 Siemens Ag Vorrichtung zur Lokalisierung von Verkehrsunfällen
EP1835308A1 (de) * 2006-03-16 2007-09-19 SmartTrig AB Detektionseinheit und Verfahren zu ihrer Verwendung
WO2012017104A1 (es) * 2010-08-06 2012-02-09 Universidad De Malaga Sistema y procedimiento de gestion de trafico
ES2350551A1 (es) * 2010-08-06 2011-01-25 Universidad De Málaga Sistema y procedimiento de gestion de trafico.
EP2659471A2 (de) * 2010-12-30 2013-11-06 Sensys Networks, Inc. Drahtlose und drahtgebundene sensorknoten, micro-radar, netzwerke und systeme
EP2659471A4 (de) * 2010-12-30 2014-07-23 Sensys Networks Inc Drahtlose und drahtgebundene sensorknoten, micro-radar, netzwerke und systeme
JP2013097550A (ja) * 2011-10-31 2013-05-20 Sumitomo Electric System Solutions Co Ltd 車両通行判定装置、交通信号制御装置、コンピュータプログラム、車両通行判定方法、及び交通信号制御方法
EP2733688A1 (de) * 2012-11-14 2014-05-21 Wolfsburg AG Fahrzeuginformationseinrichtung, Fahrzeugkommunikationseinheit sowie Verfahren zur Übertragung von für den Straßenverkehr in einem räumlichen Gebiet nützlichen Informationen
EP3996064A1 (de) * 2020-11-10 2022-05-11 IFP Energies nouvelles Verfahren zur bestimmung einer anzahl von fahrzeugdurchfahrten auf mindestens einem strassenabschnitt eines strassennetzes
FR3116144A1 (fr) * 2020-11-10 2022-05-13 IFP Energies Nouvelles Procédé de détermination d’un nombre de passages de véhicules sur au moins une portion de route d’un réseau routier

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Publication number Publication date
ITUD20010205A1 (it) 2003-06-12
EP1321915A3 (de) 2003-12-17

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