EP1262934A2 - Méthode pour la detection de la situation du trafic routier - Google Patents

Méthode pour la detection de la situation du trafic routier Download PDF

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Publication number
EP1262934A2
EP1262934A2 EP02076700A EP02076700A EP1262934A2 EP 1262934 A2 EP1262934 A2 EP 1262934A2 EP 02076700 A EP02076700 A EP 02076700A EP 02076700 A EP02076700 A EP 02076700A EP 1262934 A2 EP1262934 A2 EP 1262934A2
Authority
EP
European Patent Office
Prior art keywords
traffic
speed
vehicle
undisturbed
ist
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.)
Granted
Application number
EP02076700A
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German (de)
English (en)
Other versions
EP1262934B1 (fr
EP1262934A3 (fr
Inventor
Ulrich Dipl.-Phys. Fastenrath
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.)
DDG Gesellschaft fuer Verkehrsdaten mbH
Original Assignee
DDG Gesellschaft fuer Verkehrsdaten mbH
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Publication date
Application filed by DDG Gesellschaft fuer Verkehrsdaten mbH filed Critical DDG Gesellschaft fuer Verkehrsdaten mbH
Publication of EP1262934A2 publication Critical patent/EP1262934A2/fr
Publication of EP1262934A3 publication Critical patent/EP1262934A3/fr
Application granted granted Critical
Publication of EP1262934B1 publication Critical patent/EP1262934B1/fr
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Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/20—Monitoring the location of vehicles belonging to a group, e.g. fleet of vehicles, countable or determined number of vehicles
    • 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
    • G08G1/0104—Measuring and analyzing of parameters relative to traffic conditions

Definitions

  • the invention relates to a method for recording traffic conditions on roads after Preamble of claim 1.
  • traffic conditions are recorded on roads Traffic situation detection systems used by which traffic information to be delivered.
  • traffic data from land vehicles are determined and use this as the basis for recording the traffic situation on the roads.
  • the recorded traffic data can, for example, position and speed one or more land vehicles.
  • These traffic data are through appropriate Sensors determined and evaluated based on certain parameters.
  • Dependent on Certain values e.g. "undisturbed Traffic "” stalled traffic ", heavy traffic” or "traffic jam" of traffic condition criteria be determined.
  • the determined values of the traffic condition criteria can used for statistical purposes or as the basis for the generation of a Serve traffic status message, which is then available to road users (e.g. traffic reports and travel times via radio or telematic Terminals).
  • the traffic data can be obtained in different ways. For example can determine the position using the GPS ("Global Positioning System”) telematic devices in land vehicles or by stationary cameras.
  • the Speed can be determined by stationary systems or by in Plants carried on land vehicles.
  • SES stationary acquisition system
  • FCD method floating Car data method
  • OBU telematic devices
  • the same device with which the Motorists access telematics services, at the same time serve as transmitters for traffic data.
  • the determined Traffic data evaluated using different algorithms. Essentially these algorithms are based on the fact that a traffic incident is reported when a certain number of land vehicles in a certain area and time interval fall below a specified speed value.
  • the invention has for its object in a method for Traffic situation detection of the type mentioned the detection of traffic disruptions to improve.
  • the invention is based in particular on the task of recognizing To carry out traffic disruptions depending on the respective road network.
  • the invention is further based in particular on the task of recognizing Improve traffic disruption on intersection-free roads.
  • a limit speed is set with which the actual vehicle speed of land vehicles is compared.
  • a value of a traffic condition criterion then becomes dependent on this comparison determined, exceeding the limit speed as a parameter is used to determine the traffic condition criterion.
  • the invention is based on the knowledge that such methods for use in Conurbations are not suitable.
  • For traffic detection using such FCD procedures is needed in metropolitan areas because of lower traffic flows with the same quality higher equipment levels than on expressways. Because of the frequent stopping in metropolitan areas, e.g. at an intersection or at a traffic light, one is on the Traffic jam detection based on falling below a limit speed is not suitable. ever after the restrictivity of the parameterization, the traffic is erroneously considered to be disturbed or reported undisturbed.
  • the known methods can cause traffic disruptions Do not differentiate undisturbed traffic in metropolitan areas quickly and safely, because Link lengths, duration of red phases in traffic lights, loss of time in Turn maneuvers etc. can vary within wide limits.
  • the invention is further based on the knowledge that a characteristic of undisturbed Traffic in metropolitan areas exists, which so far has not been able to distinguish between disrupted and undisturbed traffic has been used.
  • This characteristic consists of a (explicitly or implicitly determined) maximum speed, which of all Vehicle types can also be reached, for example those in Germany statutory maximum speed of 50 km / h. In this sense is a Undisturbed city traffic characterized by the fact that a certain Limit speed (e.g. 40 km / h) is not always, but always exceeded becomes.
  • the method according to the invention can be used for local, stationary acquisition (SES) are used in which the observation of land vehicles with cameras or by air observation or similar he follows.
  • SES local, stationary acquisition
  • Procedure suitable for FCD procedures since it with speed profiles of Land vehicles operated.
  • the procedure is basically by detecting the vehicle position and the Vehicle speed of a single land vehicle feasible. On A single vehicle can find disrupted traffic, for example if it is longer Time from a tractor creeping in front of him, heavily loaded trailers or similar. is hindered.
  • the method according to the invention preferably includes this Detect the vehicle positions and the associated vehicle speeds from several land vehicles, the traffic status reports (e.g. "undisturbed Traffic ”) depending on several of the detected vehicle positions and several the detected vehicle speeds is determined.
  • the value of the determined traffic condition criterion can exceed the Limit speed of at least one land vehicle in a particular one local area and / or within a certain time interval. For certain It is important to know traffic reports in which local Range and / or the time interval in which the limit speed is exceeded, thus, for example, a corresponding traffic report to the road users in this local area and / or can be sent in this time interval.
  • the method according to the invention is preferably used in combination with an FCD method used.
  • FCD method used.
  • the vehicle positions of the land vehicles and the vehicle speeds assigned to the respective land vehicle by in Mobile vehicles with land vehicles are detected.
  • sensors are for example known as "on board units” (OBU).
  • the limit speed that can be specified in the method according to the invention can be determined by first defining a maximum speed and determining the limit speed as a function of this maximum speed.
  • the specified maximum speed can be the respective legally permissible maximum speed and the determination of the limit speed can take place according to a certain mathematical relationship.
  • the maximum speed ⁇ H can depend on the street class and assume different values, for example for residential areas, thoroughfares and federal highways.
  • the control parameter ⁇ can then be varied, for example, to take account of certain local conditions.
  • the predefinable maximum speed can be explicitly specified by as Maximum speed the legally permitted on the respective street class Maximum speed is chosen. This can be permitted by law Top speed using a telematic terminal (OBU) one Land vehicle can be detected.
  • OBU telematic terminal
  • the end device contains a digital card, from which the applicable maximum speed can be found.
  • the specifiable maximum speed also from an application-specific Table are obtained through which road classes and permissible Maximum speeds can be linked. This is particularly advantageous if only the street class can be found on the terminal.
  • the predeterminable maximum speed can be obtained in that the Land vehicle localized and the predefinable maximum speed set centrally a feedback to the land vehicle.
  • the determined traffic condition (e.g. "undisturbed traffic") can Road users transmitted by sending a corresponding status message become.
  • Embodiments of the invention are the subject of the dependent claims.
  • OBUs telematic end devices
  • Such OBUs include, among other things, a GPS unit for determining the current vehicle position (x, y) ist , a speed sensor for determining the current vehicle speed ⁇ ist , a memory for storing data (eg the current vehicle speed ⁇ ist and the current vehicle position (x, y) is ), a transmitter for sending data (eg traffic data) and a receiver for receiving data (eg telematics services).
  • a GPS unit for determining the current vehicle position (x, y) ist
  • a speed sensor for determining the current vehicle speed ⁇ ist
  • a memory for storing data (eg the current vehicle speed ⁇ ist and the current vehicle position (x, y) is )
  • a transmitter for sending data eg traffic data
  • receiver for receiving data (eg telematics services).
  • Such terminals are known per se and are therefore not described in detail here.
  • ⁇ f ⁇ f ⁇ f ⁇ ⁇ N ⁇ ⁇ f ⁇ ⁇ f ⁇ ⁇ N
  • a specific time interval [t 1 , t 2 ] can also be specified, in which this limit speed ⁇ f or limit speeds ⁇ f, 1 , ..., ⁇ f, n are valid, or different such time intervals [t 1 , t 2 ] 1 , ..., [t 1 , t 2 ] n for the different local areas.
  • the limiting speeds ⁇ f, 1 , ..., ⁇ f, n can be defined in different ways. It can take place either centrally, for example in a traffic situation recording center, or locally in a land vehicle. Some embodiments of the definition of the limit speeds ⁇ f, 1 , ..., ⁇ f, n are described later.
  • the specified limit speeds ⁇ f, 1 , ..., ⁇ f, n are transmitted to the land vehicles equipped with OBUs. This is represented by block 12.
  • the transmission takes place by means of wireless communication.
  • the OBU determines in which local area [x, y] i (i ⁇ [1, ..., n]) the land vehicle is located (block 14) and the associated limit speed ⁇ f, i is determined (block 16 ).
  • the current vehicle speed is ⁇ is determined (block 18) and with the valid limit velocity ⁇ f, i is compared (block 20). This comparison is repeated with a certain clock frequency (eg 1 Hz).
  • the values of the traffic condition criterion then become one Traffic situation detection center transmitted via a wireless communication path.
  • the frequency of this transmission is chosen so that as little as possible Notifications take place.
  • a transmission preferably only takes place at one Change of state of the value of the traffic condition criterion takes place.
  • a traffic status report for example "undisturbed traffic”, “undisturbed traffic during [t 1 , t 2 ]", “undisturbed traffic in [x, y] j ") as a function of the values of the traffic condition criteria and, if applicable, the time interval ([t 1 , t 2 ]) and the local area ([x, y] i ).
  • a traffic status report for example "undisturbed traffic”, “undisturbed traffic during [t 1 , t 2 ]", “undisturbed traffic in [x, y] j .
  • the land vehicle exceeds the limit speed ⁇ f .
  • the value of the traffic condition criterion is set to the value "undisturbed” and a corresponding message ("telegram") is transmitted to the traffic situation recording center. This is shown by an arrow A.
  • the limit speed ⁇ f of the land vehicle is repeatedly undershot, that is, ⁇ is less than ⁇ f , but the duration of the undershoot is always shorter than the specified time period T, so that the value of the traffic condition criterion maintains the value "undisturbed" and no message is transmitted to the traffic situation recording center. It is therefore assumed that the traffic is undisturbed, although the speed ⁇ ist of the land vehicle can even assume the value zero. This corresponds, for example, to stopping at a red phase in a traffic light system.
  • T t C -t B
  • the value of the traffic condition criterion is then set to the value "disturbed”. Since this causes a change in the value of the traffic condition criterion (from "undisturbed” to "disturbed"), a corresponding message is also transmitted to the traffic situation recording center. This is shown by an arrow C. It is therefore assumed that the traffic is then disrupted.
  • the specified maximum speed ⁇ H can be set explicitly by selecting the maximum speed ⁇ H that is legally permissible on the respective road class.
  • This legally permissible maximum speed can be recorded using the telematic terminal (OBU) of the land vehicle.
  • the end device contains a digital map from which the applicable maximum speed can be found.
  • the predeterminable maximum speed can also be obtained from an application-specific table, by means of which road classes and permissible maximum speeds are linked. A section of an example of such a table is shown schematically in FIG. 4.
  • the predetermined maximum speed ⁇ H can be obtained by locating the land vehicle and defining the top speed centrally, with feedback to the land vehicle. This definition can also be made using tables similar to FIG. 4.
  • the predetermined maximum speed ⁇ H can also be determined implicitly by the maximum speed ⁇ H being obtained from the driving data of the land vehicle (s) itself by an estimate.
  • This type of determination of the maximum speed also provides values which are useful for the method.
  • the traffic condition criterion is two-valued with the values “undisturbed” and “disturbed”.
  • the traffic condition criterion can of course also have more than two values. For example, several different limit speeds for one and same local area, not only between undisturbed and disturbed traffic, but for example between undisturbed Traffic, sluggish traffic, heavy traffic and traffic jams can be distinguished.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Traffic Control Systems (AREA)
  • Road Signs Or Road Markings (AREA)
EP02076700A 2001-06-01 2002-04-17 Méthode pour la detection de la situation du trafic routier Expired - Lifetime EP1262934B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10126872A DE10126872A1 (de) 2001-06-01 2001-06-01 Verfahren zur Verkehrslageerfassung
DE10126872 2001-06-01

Publications (3)

Publication Number Publication Date
EP1262934A2 true EP1262934A2 (fr) 2002-12-04
EP1262934A3 EP1262934A3 (fr) 2003-11-05
EP1262934B1 EP1262934B1 (fr) 2007-06-06

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EP02076700A Expired - Lifetime EP1262934B1 (fr) 2001-06-01 2002-04-17 Méthode pour la detection de la situation du trafic routier

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EP (1) EP1262934B1 (fr)
AT (1) ATE364212T1 (fr)
DE (2) DE10126872A1 (fr)
ES (1) ES2288535T3 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005064567A1 (fr) * 2003-12-19 2005-07-14 Bayerische Motoren Werke Aktiengesellschaft Identification d'etat du trafic par un procede de valeurs seuils
WO2005064566A1 (fr) * 2003-12-19 2005-07-14 Bayerische Motoren Werke Aktiengesellschaft Procede pour determiner un niveau de vitesse auquel s'attendre
EP1879159A1 (fr) * 2005-05-06 2008-01-16 Pioneer Design Corporation Dispositif d'evaluation d'etat de voyage et procede d'evaluation d'etat de voyage
EP2128836A2 (fr) * 2008-05-26 2009-12-02 Robert Bosch GmbH Procédé et dispositif destinés à la planification du trafic
CN102087788B (zh) * 2009-12-02 2012-12-19 上海济祥智能交通科技有限公司 基于浮动车车速置信度的交通状态参数估计方法
WO2013139551A1 (fr) * 2012-03-21 2013-09-26 Bayerische Motoren Werke Aktiengesellschaft Procédé et dispositif de détermination d'un état de trafic routier
CN111613049A (zh) * 2019-02-26 2020-09-01 北京嘀嘀无限科技发展有限公司 一种道路状态监测方法以及装置

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101989381B (zh) * 2010-11-15 2012-07-25 福建工程学院 基于浮动车技术的道路单向限行与通行状态识别方法
CN115188184B (zh) * 2022-06-20 2024-03-19 海信集团控股股份有限公司 一种车辆限速处理方法、设备及装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0789341A1 (fr) * 1996-02-06 1997-08-13 MANNESMANN Aktiengesellschaft Détection de bouchon de circulation embarquée dans le véhicule
WO1999024952A1 (fr) * 1997-11-05 1999-05-20 Swisscom Ag Procede, systeme et dispositifs de collecte de donnees de trafic
DE19833614A1 (de) * 1998-07-25 2000-01-27 Bayerische Motoren Werke Ag Verfahren zur Verkehrsqualitätserkennung und Fahrzeug als Mittel dazu
WO2000008615A2 (fr) * 1998-08-08 2000-02-17 Daimlerchrysler Ag Procede de surveillance du trafic et de regulation de la circulation des vehicules dans un reseau routier
US6178374B1 (en) * 1996-10-10 2001-01-23 Mannesmann Ag Method and device for transmitting data on traffic assessment
WO2002027691A1 (fr) * 2000-09-27 2002-04-04 Zoltan Anton Kiefer Dispositif et procede de detection d'embouteillage

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0789341A1 (fr) * 1996-02-06 1997-08-13 MANNESMANN Aktiengesellschaft Détection de bouchon de circulation embarquée dans le véhicule
US6178374B1 (en) * 1996-10-10 2001-01-23 Mannesmann Ag Method and device for transmitting data on traffic assessment
WO1999024952A1 (fr) * 1997-11-05 1999-05-20 Swisscom Ag Procede, systeme et dispositifs de collecte de donnees de trafic
DE19833614A1 (de) * 1998-07-25 2000-01-27 Bayerische Motoren Werke Ag Verfahren zur Verkehrsqualitätserkennung und Fahrzeug als Mittel dazu
WO2000008615A2 (fr) * 1998-08-08 2000-02-17 Daimlerchrysler Ag Procede de surveillance du trafic et de regulation de la circulation des vehicules dans un reseau routier
WO2002027691A1 (fr) * 2000-09-27 2002-04-04 Zoltan Anton Kiefer Dispositif et procede de detection d'embouteillage

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005064567A1 (fr) * 2003-12-19 2005-07-14 Bayerische Motoren Werke Aktiengesellschaft Identification d'etat du trafic par un procede de valeurs seuils
WO2005064566A1 (fr) * 2003-12-19 2005-07-14 Bayerische Motoren Werke Aktiengesellschaft Procede pour determiner un niveau de vitesse auquel s'attendre
WO2005064564A1 (fr) * 2003-12-19 2005-07-14 Bayerische Motoren Werke Aktiengesellschaft Determination du niveau de vitesse attendu
US7869934B2 (en) 2003-12-19 2011-01-11 Bayerische Motoren Werke Aktiengesellschaft Determination of an expected speed level
US7343242B2 (en) 2003-12-19 2008-03-11 Bayerische Motoren Werke Aktiengesellschaft Traffic status detection with a threshold method
EP1879159A4 (fr) * 2005-05-06 2010-08-25 Pioneer Design Corp Dispositif d'evaluation d'etat de voyage et procede d'evaluation d'etat de voyage
EP1879159A1 (fr) * 2005-05-06 2008-01-16 Pioneer Design Corporation Dispositif d'evaluation d'etat de voyage et procede d'evaluation d'etat de voyage
EP2128836A2 (fr) * 2008-05-26 2009-12-02 Robert Bosch GmbH Procédé et dispositif destinés à la planification du trafic
CN102087788B (zh) * 2009-12-02 2012-12-19 上海济祥智能交通科技有限公司 基于浮动车车速置信度的交通状态参数估计方法
WO2013139551A1 (fr) * 2012-03-21 2013-09-26 Bayerische Motoren Werke Aktiengesellschaft Procédé et dispositif de détermination d'un état de trafic routier
CN104205185A (zh) * 2012-03-21 2014-12-10 宝马股份公司 用于确定交通状态的方法和装置
US9460614B2 (en) 2012-03-21 2016-10-04 Bayerische Motoren Werke Aktiengesellschaft Method and apparatus for determining traffic status
CN111613049A (zh) * 2019-02-26 2020-09-01 北京嘀嘀无限科技发展有限公司 一种道路状态监测方法以及装置
CN111613049B (zh) * 2019-02-26 2022-07-12 北京嘀嘀无限科技发展有限公司 一种道路状态监测方法以及装置

Also Published As

Publication number Publication date
EP1262934B1 (fr) 2007-06-06
ES2288535T3 (es) 2008-01-16
ATE364212T1 (de) 2007-06-15
EP1262934A3 (fr) 2003-11-05
DE10126872A1 (de) 2003-01-02
DE50210258D1 (de) 2007-07-19

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