EP1040462B1 - Kollisionsvermeidungsystem für fahrzeuge bei schlechter sicht - Google Patents

Kollisionsvermeidungsystem für fahrzeuge bei schlechter sicht Download PDF

Info

Publication number
EP1040462B1
EP1040462B1 EP99954339A EP99954339A EP1040462B1 EP 1040462 B1 EP1040462 B1 EP 1040462B1 EP 99954339 A EP99954339 A EP 99954339A EP 99954339 A EP99954339 A EP 99954339A EP 1040462 B1 EP1040462 B1 EP 1040462B1
Authority
EP
European Patent Office
Prior art keywords
bis
road
vehicle
sensors
receivers
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
Application number
EP99954339A
Other languages
English (en)
French (fr)
Other versions
EP1040462A1 (de
Inventor
Carlo Corsi
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.)
Consorzio Creo - Centro Richerche Elettro Ottiche
Original Assignee
Consorzio Creo - Centro Richerche Elettro Ottiche
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 Consorzio Creo - Centro Richerche Elettro Ottiche filed Critical Consorzio Creo - Centro Richerche Elettro Ottiche
Publication of EP1040462A1 publication Critical patent/EP1040462A1/de
Application granted granted Critical
Publication of EP1040462B1 publication Critical patent/EP1040462B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/16—Anti-collision systems
    • G08G1/164—Centralised systems, e.g. external to vehicles

Definitions

  • the present invention concerns a system for preventing the collision of vehicles of any type in low visibility conditions.
  • the invention can be classified in the technical field of signalling for traffic monitoring systems and in the application field of road safety in low visibility conditions or in presence of dangerous obstacles.
  • the first group that provides assisted driving by means of systems on board, can be divided in two subgroups, one of which is based on active technologies and the other is based on passive technologies.
  • the subgroup based on passive technologies makes use of infrared vision, i.e., thermal viewers providing a better visibility in difficult conditions, such as not very thick fog, thanks to the better penetration of the infrared radiation compared to the one of visible spectrum.
  • thermal viewers providing a better visibility in difficult conditions, such as not very thick fog, thanks to the better penetration of the infrared radiation compared to the one of visible spectrum.
  • These devices have a low effectiveness/cost ratio, due to the very high cost of the thermal imaging viewers, that can provide an high resolution image, but have the same price of a small-medium car.
  • the subgroup based on active technologies includes essentially the electro-optical technologies, which are systems emitting short laser pulses in the infrared spectrum that act as an optical radar, in which the signal generated and back-scattered from the target is detected by a sensor that measures its shape and time of arrival, and then measures the speed and distance of the target.
  • electro-optical technologies are systems emitting short laser pulses in the infrared spectrum that act as an optical radar, in which the signal generated and back-scattered from the target is detected by a sensor that measures its shape and time of arrival, and then measures the speed and distance of the target.
  • An obstacle detection system is disclosed in EP-0 436 213.
  • the system is a maximally passive obstacle detection system that makes selective use of an active sensor.
  • the invention described here is able to overcome the typical limitations of the techniques described above and consists essentially in a co-operative road-vehicle system for the detection of obstacles, that can be installed at a low cost and with a very high efficiency on the sides of a motorway.
  • This system includes a very simple passive infrared sensor with a few sensing elements (about one hundred), lower in size by three orders of magnitude than the thermo-cameras as to the number of pixels, that at present, thanks to the technology of microbolometers operating at room temperature, has an affordable cost and can therefore be suitable for every kind of vehicles, especially for cars.
  • This sensor does not provide an image (which might distract the driver attention); it provides an alarm indicating the presence of an obstacle on the road. This is possible because this sensor performs a differential measurement of the temperature on the road sides (which in case of a motorway are clearly distinguishable, thanks to the metallic guard-rails that obviously have a lower temperature compared to the temperature of any possible obstacle) and the thermal distribution on the road delimited by the borders. The presence of a possible obstacle on the road is therefore detected by the thermal radiation emitted by a warmer object on the road.
  • This mechanism offers the advantage of a very high ability to discriminate the objects detected by the sensor.
  • the vehicles going ahead are easily distinguishable because of the high temperatures of their exhaust pipes.
  • the sensor therefore detects some signals which differ from the signals emitted by the other cold zones of the road.
  • the present system includes not only the sensor installed on the vehicle, but also small infrared emitters installed on the guard-rails, exactly in the same locations were now reflectors are placed. These emitters are essentially elements warmed up at a very low cost, directly powered by the electrical power line (for instance, AC 220V, 50 Hz). These emitters can be detected directly and synchronously by the sensor installed on board a vehicle. For this purpose, two little receivers, of the same type as the sensor above described, are installed on the vehicle, inside the headlights of the vehicle itself. These receivers, designed in an appropriate way, are the focalising antenna of the vehicle in the infrared spectrum.
  • the invention described here makes it possible to detect electromagnetic sources that are easily recognisable by the on board receivers and that have a signal intensity many times higher than the intensity of the background signal. This happens because such sources are detected in the infrared in a modulated way, even if the emission of the single emitters is relatively small (less than a few watts).
  • the present invention provides a system network operating along the whole road.
  • receivers are also installed on each transmitting site, each receiver controlling several (for instance, three) corresponding transmitters placed on the other side of the road, and detecting if necessary the presence of each obstacle between every single receiver and the corresponding transmitter.
  • This detection of obstacles on the road is shown by a sound and light signalling, receivable by all vehicles present in the action range of the signal, even those that have no infrared alarm system mounted on board. The drivers of those vehicles can in this way slow down and avoid collision.
  • the result is a remarkable driving ability, as that nowadays made available in airports, but with the advantage of using transmitters that, since they operate in the infrared and not in the visible spectrum, have a greater penetration in the fog, and can also be modulated and therefore regulated, with a consequent high advantage in terms of signal/noise ratio compared to signals of continuous type.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Traffic Control Systems (AREA)
  • Optical Radar Systems And Details Thereof (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Emergency Alarm Devices (AREA)
  • Air Bags (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Train Traffic Observation, Control, And Security (AREA)

Claims (3)

  1. System zum Vermeiden eines Aufpralls eines Bodenfahrzeugs (10) auf durch Straßenränder begrenzten Straßen, bei schlechten Sichtbedingungen, worin besagtes System ein passives an besagtem Fahrzeug (10) installiertes Erkennungssystem beinhaltet und auf "klugen Sensoren" (1 und 1') basiert, die im Infrarotspektrum arbeiten, dadurch gekennzeichnet, dass besagte intelligente Sensoren (1 und 1') Differenzmessungen der Temperatur auf den Straßenrändern und die Wärmeverteilung auf der von besagten Straßenrändern begrenzten Straße durchführen, so dass die Anwesenheit eines möglichen Hindernisses auf der Straße aufgespürt und ein Alarm gegeben wird.
  2. System entsprechend Patentanspruch 1, dadurch gekennzeichnet, dass es auch ein aktives System beinhaltet, das mit besagtem passivem System zusammenarbeitet und auf einer Vielzahl von Sendeelementen (2, 2', 2", ... ; 2bis, 2'bis, 2"bis, ...) und Empfangselementen (3, 3', 3", ... ; 3bis, 3'bis, 3"bis ...) basiert, die ebenso im Infrarotspektrum arbeiten und an den Straßenrändern an den Sitzen installiert sind, die normalerweise für die Rückstrahler (reflectors) verwendet werden, worin das besagte aktive System über die besagten Sendeelemente (2, 2', 2", ... ; 2bis, 2'bis, 2"bis,....) Infrarotsignale sendet, die von besagten Sensoren (1 und 1') empfangen werden und das Steuern des Fahrzeugs mit Informationen ermöglichen, die die Fahrspurränder definieren, und die besagten Empfangselemente (3,3',3",...;3bis,3'bis,3"bis...), die im Fall der Anwesenheit von Hindernissen (11) zwischen den besagten Empfangselementen und den entsprechenden auf der Gegenseite der Straße installierten Sendeelementen auf diese Weise einen akustischen und/oder sichtbaren Alarm erzeugen.
  3. System entsprechend Patentanspruch 1 und 2, dadurch gekennzeichnet, dass besagte Sensoren (1 und 1') im Fall des Erkennens eines Alarms einen aktiven Telemeter (20) vom Typ eines Radars oder vom Typ eines "laser range finder" aktivieren können, der in besagtem Fahrzeug (10) installiert ist, um eine Bestätigung des empfangenen Alarms zu erhalten und um außerdem eine Messung der Entfernung zwischen dem erkannten Hindernis (11) und dem Fahrzeug (10) zu erhalten.
EP99954339A 1998-10-15 1999-10-14 Kollisionsvermeidungsystem für fahrzeuge bei schlechter sicht Expired - Lifetime EP1040462B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ITRM980648 1998-10-15
IT1998RM000648A IT1302376B1 (it) 1998-10-15 1998-10-15 Sistema per evitare la collisione di veicoli in condizioni di scarsavisibilita'
PCT/IT1999/000327 WO2000022596A1 (en) 1998-10-15 1999-10-14 System for avoiding collision of vehicles in low visibility conditions

Publications (2)

Publication Number Publication Date
EP1040462A1 EP1040462A1 (de) 2000-10-04
EP1040462B1 true EP1040462B1 (de) 2006-07-19

Family

ID=11406168

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99954339A Expired - Lifetime EP1040462B1 (de) 1998-10-15 1999-10-14 Kollisionsvermeidungsystem für fahrzeuge bei schlechter sicht

Country Status (6)

Country Link
EP (1) EP1040462B1 (de)
AT (1) ATE333691T1 (de)
DE (1) DE69932404T2 (de)
ES (1) ES2270621T3 (de)
IT (1) IT1302376B1 (de)
WO (1) WO2000022596A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2427058A (en) * 2005-06-07 2006-12-13 Alberto Rossi System for detecting objects in a roadway and providing a warning to drivers.
ITRM20090589A1 (it) * 2009-11-12 2011-05-12 Alessandro Baselice Disposizione per la sicurezza del traffico stradale ed autostradale
EP2998947A1 (de) 2014-09-16 2016-03-23 Johnny Vaccaro Dynamische Form Anzeige

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2492748A2 (fr) * 1979-11-07 1982-04-30 Massoni Francois Dispositif de commande automatique de l'allumage et de l'extinction des feux d'un vehicule
FR2598839A1 (fr) * 1986-05-14 1987-11-20 Mirica Gheorghe Systeme actif de signalisation concernant la route et les vehicules, qui permet d'anticiper et d'eviter les evenements routiers
US4872051A (en) * 1987-10-01 1989-10-03 Environmental Research Institute Of Michigan Collision avoidance alarm system
US5128874A (en) * 1990-01-02 1992-07-07 Honeywell Inc. Inertial navigation sensor integrated obstacle detection system
US5134393A (en) * 1990-04-02 1992-07-28 Henson H Keith Traffic control system
IT1297198B1 (it) * 1992-07-06 1999-08-03 Valerio Brunetti Sistema di rilevamento e segnalazione automatica preventiva di ostacoli in autostrada, in presenza di nebbia.
DE69322349T3 (de) * 1992-09-30 2004-06-09 Hitachi, Ltd. Informationssystem für den Fahrer eines Fahrzeuges

Also Published As

Publication number Publication date
DE69932404T2 (de) 2007-03-29
ATE333691T1 (de) 2006-08-15
ES2270621T3 (es) 2007-04-01
IT1302376B1 (it) 2000-09-05
WO2000022596A1 (en) 2000-04-20
EP1040462A1 (de) 2000-10-04
DE69932404D1 (de) 2006-08-31
ITRM980648A1 (it) 2000-04-15

Similar Documents

Publication Publication Date Title
US6614721B2 (en) Collision avoidance method and system
US5424726A (en) Method, apparatus and system for transmitting and receiving data in a moving linear chain
US6470273B2 (en) Collision warning system
US5583495A (en) Vehicle alarm system
US3516056A (en) Traffic control system
CN101398977B (zh) 全天候电子无线交通信息指示系统及装置
US20150123816A1 (en) Animal detecting and notification method and system
JPH0618667A (ja) 自動車間距離測定装置
AU2002211733A1 (en) Collision avoidance method and system
AU4635601A (en) System for detecting an object
RU2598362C1 (ru) Система предупреждения столкновений участников дорожного движения
KR20140066301A (ko) 차선 변경 차량과 충돌 사고 방지 시스템 및 그 방법
US20230222908A1 (en) Roadway information detection system consists of sensors on the autonomous vehicles and devices for the road
EP1657568B1 (de) System und verfahren zur überwachung der externen umgebung eines kraftfahrzeugs
JP4179577B2 (ja) 接近通報用のレーダ波中継装置
CN113167887A (zh) 包括安装在诸如桥梁或建筑物之类的固定基础设施上的至少两个不同的传感器的用于交通监控的系统
EP1040462B1 (de) Kollisionsvermeidungsystem für fahrzeuge bei schlechter sicht
WO1994005525A1 (en) Vehicle alarm system
EP0964379B1 (de) Detektionssystem von mobilen Einheiten
KR20220073874A (ko) 근거리 및 원거리 교통 환경정보를 이용한 자율주행 차량의 주행 제어시스템
KR20050049094A (ko) 차량 충돌 방지용 지능형 도로 시스템
JP3775191B2 (ja) 歩行者存在報知装置及び車載用歩行者検出装置
WO2023158128A1 (ko) 차량 및 보행자 안전을 위한 능동 알림 장치
JP4112929B2 (ja) 障害物検知装置及び障害物報知システム
JP2886324B2 (ja) 近隣走行車両との相対位置計測システム

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20000621

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

17Q First examination report despatched

Effective date: 20041217

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060719

Ref country code: LI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060719

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20060719

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060719

Ref country code: CH

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060719

Ref country code: BE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060719

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060719

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REF Corresponds to:

Ref document number: 69932404

Country of ref document: DE

Date of ref document: 20060831

Kind code of ref document: P

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20061016

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20061019

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20061031

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20061219

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
ET Fr: translation filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20070328

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20070329

Year of fee payment: 8

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2270621

Country of ref document: ES

Kind code of ref document: T3

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20070412

Year of fee payment: 8

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20070420

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20061020

EUG Se: european patent has lapsed
GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20071014

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20061014

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20071015

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20071014

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060719

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20071015

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20081029

Year of fee payment: 10

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20071015

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20081029

Year of fee payment: 10

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20100630

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20091102

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100501

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20131014

PGRI Patent reinstated in contracting state [announced from national office to epo]

Ref country code: IT

Effective date: 20140808

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20141030

Year of fee payment: 16

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20151014