EP0860804A2 - System zur Detektierung und Signalisierung von Objekten auf einer Fahrbahn - Google Patents

System zur Detektierung und Signalisierung von Objekten auf einer Fahrbahn Download PDF

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Publication number
EP0860804A2
EP0860804A2 EP98102407A EP98102407A EP0860804A2 EP 0860804 A2 EP0860804 A2 EP 0860804A2 EP 98102407 A EP98102407 A EP 98102407A EP 98102407 A EP98102407 A EP 98102407A EP 0860804 A2 EP0860804 A2 EP 0860804A2
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EP
European Patent Office
Prior art keywords
roadway
signalling
detection means
selection means
detection
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.)
Withdrawn
Application number
EP98102407A
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English (en)
French (fr)
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EP0860804A3 (de
Inventor
Giovanni Gualdi
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Individual
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Individual
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Publication date
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Publication of EP0860804A2 publication Critical patent/EP0860804A2/de
Publication of EP0860804A3 publication Critical patent/EP0860804A3/de
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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
    • G08G1/04—Detecting movement of traffic to be counted or controlled using optical or ultrasonic detectors

Definitions

  • the present invention relates to a system for the signalling of dangerous situations occurring on the roadway, and particularly refers to a system for the detection and the signalling of objects on the roadway.
  • the cars are provided with GPS (Global Positioning System) devices, and by this way a number of car can acknowledge the position of another car provided with the same system.
  • GPS Global Positioning System
  • a system is yet costly, and moreover it is not able to give any information about cars or other object that are not provided with the said GPS device.
  • a primary task of the present invention is to allow the detection and the real time signalling of objects to every driver on the road, even if the drivers are not provided with any special safety device on their cars.
  • Another object of the present invention is to provide a system that can be easily adapted to many different situations.
  • the subject of the present invention is therefore to provide a system for the detection and the signalling of objects along the roadway, characterized in that the said system comprises:
  • a plurality of detection means placed regularly spaced apart from each other along the roadway, each detection means being connected to power supply means;
  • said detection means comprise photo-cell sensing devices or the like, provided with means for emitting an electromagnetic radiation and means for sensing such a radiation.
  • the said detection means comprise photo cell infrared detectors.
  • said control means comprise a plurality selection means, provided with a timing device or the like, and each connected to a detection means, and one or more processing units, the said units elaborating the signals coming from the selection means and generating the signal to be sent to the signalling means.
  • figure 1 a diagrammatic view of a portion of roadway in which is installed the system according to the present invention
  • the numeral 1 designates the detection means, for instance a photo cell infrared detector, comprising an unit for the emission of the radiation 101 and a sensing unit 201.
  • the two units of each detection means 1 are placed at the opposite edges of the roadway 10, the sensing units 201 being located at the edge 11 of the roadway, and the emitting units 101 on the opposite edge 12.
  • Every sensing unit 201 is connected to a selection means 2, for instance a timing device or the like, which in its turn is connected to a processing unit 3.
  • a number of selection means 2 are connected in parallel with one processing unit 3.
  • the said processing unit 3 controls the signalling means 4, placed on the edge of the roadway 10, at a position which is upstream of the detection means 1 connected to the said processing unit 3, in respect of the running direction, shown by means of the arrow 22, of the cars 20, 21.
  • the radiation beam 30 emitted by the emitting unit 101 of the detection means 1 is intercepted.
  • FIG. 2 is shown, in form of a diagram, an embodiment of the system according to the invention.
  • every detection means 1 comprising an emitting unit 101 and a sensing unit 201
  • a selection means 2 that directly controls the signalling means 4.
  • the timing device in the selection means 2 starts its count for a given number of frames, e.g. 3 seconds; then, if the sensing unit 201 still doesn't receive the radiation beam 30, the selection means 2 allow the lit up of the signalling means 4.
  • the sensing unit 201 connected to the selection means 2 receive again the radiation during the given period, the timing device is then reset.
  • the case illustrated in figure 3 is very similar to that shown in figure 1, but in this case every selection means 2 is individually connected to the processing unit 3.
  • the said selection means 2 communicates these data to the processing unit 3.
  • the processing unit 3 is advantageously provided with a memory in which are stored the parameters useful to evaluate the data sent by the selection means 2. For example, a slow moving vehicle, a standstill vehicle and a speeding vehicle give rise to three different kinds of data sent by the selection means; thus, the processing unit can, according to the different case, allow a different signalling sequence to the signalling means 4.
  • the selection means 2' lit up the signalling means 4. On the contrary, if the object meet the radiation beam 30' during the given time range, the timing device of the selection means 2' is reset.
  • FIG. 5 is shown an embodiment of the present invention in which are merged the features of the two embodiments of Figg. 3 and 4.
  • the processing unit 3 is advantageously provided with a memory, in which are stored different routines according to the different data sent from the selection means 2'
  • FIGs 6 and 7 are represented two examples of signalling means provided in the system according to the present invention.
  • a signalling means 4 comprising a pole 304 on which are mounted three coloured lamps 104 and an acoustic emitter 204.
  • the signalling means 4' of the Figure 7 comprises a pole 304' and a transmitting device 104' provided with an antenna 204'.
  • the signal of such a transmitting device 104' can be received by a receiving device as 404', provided with a loudspeaker 414', with a LED 424' and with an antenna 434'.
  • the system of the present invention can provide a very accurate and inexpensive signalling of dangerous situations occurring on the road, especially in conditions of poor or bad visibility.
  • the system shown in Figure 1 operates either according the embodiment of Figure 3, or according the embodiment of Figure 5. That is to say that, depending on the software stored in the memory of the processing unit 3, the said processing unit can consider the available data from each single detection means 1, or on the contrary from every consecutive pair of detection means.
  • the time range at which the timing devices of the selection means are regulated is calculated on the base of the optimum driving speed along the specific portion of the road, and can change according to many conditions, such as weather, visibility and the like.
  • the kind of signalling the dangerous situation depends strictly on the kind data sent to the processing unit by the selection means. That is to say, when a standstill object or a slow moving object are detected on the roadway, the signalling must to take place upstream in respect of the location wherein the detection occurs; moreover, the two signalling can be different one to another. On the other hand, a speeding vehicle must be signalled downstream, so as to prevent a possible collision.
  • the minimum distance between the signalling of any event occurring on the road and the same event is also based upon the braking distance at the above cited driving speed.
  • the event can be further signalled up to 1 km away from it.
  • the signalling can be carried out in many different ways.
  • a number of poles 304 provided with lamps 104 can be placed on the edge of the roadway, and the lamps 104 can have different colours one to another, so as to signal with different light emissions.
  • the same pole 304 can be also provided with an acoustic emitter 204. This kind of signals can be noticed by any driver on the road, but the information given is relatively poor.
  • a pole 304' can be provided with a transmitting device, e.g. a radio wave transmitter or the like, having stored in a memory a set of pre-recorded messages that can be sent to the drivers provided with a receiving device like 404' The said receiving device can be even a common FM car radio.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Traffic Control Systems (AREA)
  • Radar Systems Or Details Thereof (AREA)
EP98102407A 1997-02-19 1998-02-12 System zur Detektierung und Signalisierung von Objekten auf einer Fahrbahn Withdrawn EP0860804A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT97GE000014A ITGE970014A1 (it) 1997-02-19 1997-02-19 Sistema per rilevare e segnalare ostacoli imprevisti sulla carreggiata in caso di visibilita' ridotta o nulla per qualsivoglia evento o
ITGE970014 1997-02-19

Publications (2)

Publication Number Publication Date
EP0860804A2 true EP0860804A2 (de) 1998-08-26
EP0860804A3 EP0860804A3 (de) 2000-05-24

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP98102407A Withdrawn EP0860804A3 (de) 1997-02-19 1998-02-12 System zur Detektierung und Signalisierung von Objekten auf einer Fahrbahn

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EP (1) EP0860804A3 (de)
IT (1) ITGE970014A1 (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0992965A2 (de) * 1998-10-09 2000-04-12 EASY DRIVE S.r.l. Strassenunterstützungssystem für Autofahrer
WO2001001368A1 (de) * 1999-06-28 2001-01-04 Gerhaher, Christiane Stassenverkehrsleitsystem für gefahrenstrecken, insbesondere tunnels, sowie lichtsignalmittel
WO2001097197A1 (en) * 2000-06-15 2001-12-20 Coventry University Hazard lighting
EP1286507A1 (de) * 2001-08-16 2003-02-26 Siemens Aktiengesellschaft Verzögerungsfreie Übermittlung lokaler Informationen über eine Ad-Hoc-Funkverbindung
WO2004027728A1 (de) * 2002-08-23 2004-04-01 Thyssenkrupp Hiserv Gmbh Verfahren und detektionssystem zur erhöhung der verkehrssicherheit von fahrzeugen auf einer wenigstens eine fahrspur aufweisenden messstrecke
EP1414000A1 (de) * 2002-10-22 2004-04-28 Olindo Regazzo Verkehrsüberwachungssystem zur frühzeitigen Anzeige von Behinderungen auf der Strasse
EP1752946A1 (de) * 2005-08-08 2007-02-14 ELME IMPIANTI S.r.l. Vorrichtung für die Detektierung fester oder beweglicher Hindernisse
EP1998304A1 (de) * 2007-05-21 2008-12-03 C.R.F. Società Consortile per Azioni Verfahren und System zur Überwachung des Fahrzeugaufkommens in einem Autobahnabschnitt

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2845088A1 (de) * 1978-10-03 1980-04-24 Bbc Brown Boveri & Cie Alarmeinrichtung fuer verkehrtfahrer auf richtungsgetrennten strassen
DE3824495A1 (de) * 1988-07-20 1990-02-22 Martin Schatta Photographisches erfassungsgeraet insbesondere fuer grenzgeschwindigkeitsueberschreitende kraftfahrzeuge
GB2237134A (en) * 1989-10-18 1991-04-24 Rodney Bruce Slorach Detecting excessive vehicle speed
DE4102381A1 (de) * 1991-01-28 1992-07-30 Abb Serienprodukte Ges M B H Stauwarnanlage
EP0565992A2 (de) * 1992-04-13 1993-10-20 Pietzsch Aktiengesellschaft Verfahren sowie System zum Überwachen des Strassenverkehrs und zur Information der Verkehrsteilnehmer
EP0575907A1 (de) * 1992-06-26 1993-12-29 MAGNETI MARELLI RETE S.p.A. System zum Empfangen und Senden von Nachrichten zwischen ortsfesten und beweglichen Stationen
GB2269694A (en) * 1992-07-06 1994-02-16 Connell John Neil Automatic survey and warning system of obstacles on motorways during the presence of fog

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2845088A1 (de) * 1978-10-03 1980-04-24 Bbc Brown Boveri & Cie Alarmeinrichtung fuer verkehrtfahrer auf richtungsgetrennten strassen
DE3824495A1 (de) * 1988-07-20 1990-02-22 Martin Schatta Photographisches erfassungsgeraet insbesondere fuer grenzgeschwindigkeitsueberschreitende kraftfahrzeuge
GB2237134A (en) * 1989-10-18 1991-04-24 Rodney Bruce Slorach Detecting excessive vehicle speed
DE4102381A1 (de) * 1991-01-28 1992-07-30 Abb Serienprodukte Ges M B H Stauwarnanlage
EP0565992A2 (de) * 1992-04-13 1993-10-20 Pietzsch Aktiengesellschaft Verfahren sowie System zum Überwachen des Strassenverkehrs und zur Information der Verkehrsteilnehmer
EP0575907A1 (de) * 1992-06-26 1993-12-29 MAGNETI MARELLI RETE S.p.A. System zum Empfangen und Senden von Nachrichten zwischen ortsfesten und beweglichen Stationen
GB2269694A (en) * 1992-07-06 1994-02-16 Connell John Neil Automatic survey and warning system of obstacles on motorways during the presence of fog

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0992965A2 (de) * 1998-10-09 2000-04-12 EASY DRIVE S.r.l. Strassenunterstützungssystem für Autofahrer
EP0992965A3 (de) * 1998-10-09 2000-10-25 EASY DRIVE S.r.l. Strassenunterstützungssystem für Autofahrer
WO2001001368A1 (de) * 1999-06-28 2001-01-04 Gerhaher, Christiane Stassenverkehrsleitsystem für gefahrenstrecken, insbesondere tunnels, sowie lichtsignalmittel
WO2001097197A1 (en) * 2000-06-15 2001-12-20 Coventry University Hazard lighting
EP1286507A1 (de) * 2001-08-16 2003-02-26 Siemens Aktiengesellschaft Verzögerungsfreie Übermittlung lokaler Informationen über eine Ad-Hoc-Funkverbindung
WO2004027728A1 (de) * 2002-08-23 2004-04-01 Thyssenkrupp Hiserv Gmbh Verfahren und detektionssystem zur erhöhung der verkehrssicherheit von fahrzeugen auf einer wenigstens eine fahrspur aufweisenden messstrecke
EP1414000A1 (de) * 2002-10-22 2004-04-28 Olindo Regazzo Verkehrsüberwachungssystem zur frühzeitigen Anzeige von Behinderungen auf der Strasse
EP1752946A1 (de) * 2005-08-08 2007-02-14 ELME IMPIANTI S.r.l. Vorrichtung für die Detektierung fester oder beweglicher Hindernisse
EP1998304A1 (de) * 2007-05-21 2008-12-03 C.R.F. Società Consortile per Azioni Verfahren und System zur Überwachung des Fahrzeugaufkommens in einem Autobahnabschnitt

Also Published As

Publication number Publication date
EP0860804A3 (de) 2000-05-24
ITGE970014A1 (it) 1998-08-19

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