EP0962004B1 - Dispositif et procede servant a donner des informations sur les encombrements de la circulation - Google Patents

Dispositif et procede servant a donner des informations sur les encombrements de la circulation Download PDF

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Publication number
EP0962004B1
EP0962004B1 EP97951850A EP97951850A EP0962004B1 EP 0962004 B1 EP0962004 B1 EP 0962004B1 EP 97951850 A EP97951850 A EP 97951850A EP 97951850 A EP97951850 A EP 97951850A EP 0962004 B1 EP0962004 B1 EP 0962004B1
Authority
EP
European Patent Office
Prior art keywords
traffic
data
received
disruption
transmitted
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
EP97951850A
Other languages
German (de)
English (en)
Other versions
EP0962004A1 (fr
Inventor
Jochen Schaefer
Rudolf Messerschmidt
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP0962004A1 publication Critical patent/EP0962004A1/fr
Application granted granted Critical
Publication of EP0962004B1 publication Critical patent/EP0962004B1/fr
Anticipated expiration legal-status Critical
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
    • G08G1/09—Arrangements for giving variable traffic instructions
    • G08G1/091—Traffic information broadcasting
    • G08G1/093—Data selection, e.g. prioritizing information, managing message queues, selecting the information to be output
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/09—Arrangements for giving variable traffic instructions
    • G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
    • G08G1/0967—Systems involving transmission of highway information, e.g. weather, speed limits
    • 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 device for information about Traffic disturbances with means for receiving with sensors recorded traffic data and a method for Information about traffic disruptions.
  • a more precise recording and faster transmission has become known with the help of the Systems for the transmission of digitally coded traffic reports become possible.
  • the structure and coding of these Traffic reports and the list of places are in CEN pr ENV / 278/7/1/0012 and pr ENV / 278/7/3/0004 set on the proposed standard ALERT C, June 1996, published by the RDS ATT ALERT Consortium.
  • the essential elements A traffic announcement is the location of the event (Location) and the event (Event). These details are cataloged, that is, every traffic-relevant place and a unique code for every traffic-relevant event is assigned.
  • the concatenation of the locations in the location table along existing roads shows the course. Except the usual facilities of a receiving device with a RDS decoders are used to use the traffic information channel TMC (Traffic Message Channel) Decoding devices for Storage, processing and output of the Traffic announcements required.
  • TMC Traffic Message Channel
  • RDS radio data system
  • Specifications of the radio data system for FM radio are among others in the publication Tech. 3244-E, March 1984 of the European Runfunk Union (EBU).
  • Radio receivers with suitable RDS decoders can transmitted data in addition to audio reception with the Record and decode the same receiver.
  • Digitally coded traffic reports can also be passed on to others Way than via broadcasters and radio data signals be transmitted. This is, for example, a transmission of digitally coded traffic reports via mobile radio networks possible.
  • GSM Global System for Mobile Communication
  • Short Messages Short Messages
  • the object of the present invention is therefore that Drivers don't just have static information accessible too make but information that draws conclusions on the Allow actual traffic obstruction, for example the temporal development of a traffic disruption or the achievable despite traffic disruption Average speed on the affected Stretch.
  • the device according to the invention can in or in Connection with a terminal, for example one Car radio or a mobile device, or in a central Device be arranged.
  • a terminal for example one Car radio or a mobile device, or in a central Device be arranged.
  • the one used for the calculation Flow density diagram is also often called Fundamental diagram of road traffic is called and is for example in "How a traffic jam develops", Spectrum of Science, 11/89, p. 182. It represents the connection of the traffic flow q - often also Called traffic strength - and the traffic density k.
  • Um the data to be output using the flow-density diagram can calculate different sizes as input data used whatever is available from each standing sensors and the circumstances in individual cases depends.
  • An advantageous embodiment of the invention is that the traffic data received each measured traffic density, an identifier of the affected Route section and the respectively measured extent of the Describe traffic disruption.
  • This embodiment can also be designed such that the traffic data received also for each Describe the route section of the valid flux density diagram.
  • This has the advantage that a central traffic computer Flow density diagram to be taken into account in the calculation the current road conditions (e.g. single lane accessibility of a motorway).
  • the flux density diagram is a parabola, which is given by the Coordinate zero goes, a description suffices two sizes, for example by the coordinates of the Maximum.
  • Another advantageous embodiment of the invention Setup is that the traffic data received are extended TMC messages. This allows the existing facilities of the TMC system largely used become. Furthermore, there is a disturbance of existing ones Exclude TMC recipients.
  • Another development of the device according to the invention consists of data in the memory for description the flux density diagrams of sections of the route are stored are. This is for those sections of the route, for which have no temporary changes, one Transfer of the one describing the flux density diagram No data required.
  • the storage of data for the "normal" flowcharts can be easily in the Relation to those for decoding TMC messages location tables required anyway.
  • Such Programs are for example for personal computers on the Available on the market or integrated into navigation systems.
  • the User specifies start and finish, if necessary also others Waypoints, and then get either as a list or as Marking a route recommendation on a road map. Even if when calculating this route recommendation the Road condition and possibly existing ones Traffic disruptions can be considered unfavorable route calculation nevertheless take place, the Motorists get a route displayed that is only at a waypoint reached after a long time because of a now significantly increased traffic disruption than turns out wrong.
  • the facility is therefore also a means of calculating Route recommendations are provided, with the calculated data to be output are taken into account.
  • the Establishment and means for calculating Route recommendations are arranged in a terminal that the traffic data from at least one central facility receives.
  • This is just a uni-directional Data connection with the central device to the terminal required, such as in the radio data system or in the broadcast channel of a mobile radio system.
  • the Establishment and means for calculating Route recommendations arranged in a central facility are the data from end devices to a desired one Are feedable and from which the calculated Route recommendations to the end devices are transferable.
  • This Further education uses a bidirectional data connection ahead, as used for example by mobile radio systems Will be provided.
  • the object of the invention is in a Method according to the invention for information about Traffic disruption, taking traffic data with the help of Sensors are recorded, solved that from the recorded traffic data using a for the each section of the current flow-density diagram Data to be output are calculated, which is the impact describe the traffic disruption.
  • the invention also includes a method of transmission of information about traffic disruption, being Traffic data can be recorded with the help of sensors which is provided that the recorded traffic data Are transmitted and there with the help of a for the each section of the current flow-density diagram data to be output from the transmitted traffic data be calculated, which is the impact of the traffic disruption describe.
  • the embodiment as well as parts of it are as Block diagrams shown. However, this does not mean that the device according to the invention on a realization with the help of individual ones corresponding to the blocks Circuits is limited.
  • the device according to the invention is rather in a particularly advantageous manner with the help of highly integrated circuits possible. You can digital signal processors are used, which at suitable programming in the block diagrams perform the processing steps shown.
  • the device according to the invention can be used together with other Circuit arrangements within an integrated circuit essential parts of a terminal, for example one Radio receiver, form.
  • a receiver 1 In a receiver 1 are broadcast signals, the RDS signals included, received, including demodulation, Error correction and decoding of the RDS signals and a the TMC messages are then decoded.
  • the receiver 1 Selection of the TMC messages according to user-adjustable Selection criteria, for example according to individual streets and areas.
  • the remaining TMC messages are then a selection filter 2, which with stores 3 to 5, 15 is connected for the location LOC, the extent EXT, the Characteristic values kmax, qmax of the flux density diagram, each current traffic density transmitted with the TMC message k and the also transmitted dimension 1 of the Traffic disruption. This information can be used for several TMC messages are saved.
  • the route length is temporarily stored in a memory 8, while at 14 a Calculation of the FDD characteristic value in the event that Section of several FDD parameters in the location list are filed. This can be the case if for example, a section of the route partly four, partly six Has lanes. This calculation can be done as Minimum formation (worst value) or as Averaging takes place.
  • the FDD characteristic value thus calculated becomes 9 cached.
  • a selection is made between the FDD characteristic value cached at 4 and 9.
  • the transferred and buffered at 4 FDD parameter priority so that the from the list of places 6 read out characteristic value is only used if none FDD characteristic value was transferred.
  • This selection can also be made at 7 be hit by a dashed line is indicated.
  • the result of the selection at 10 as well as the temporarily stored traffic density k and the extent 1 are evaluated at 11.
  • the evaluation can also be carried out using the 11 calculated flow-density diagram as below Described with reference to Figures 2 and 3, take place.
  • the data to be output are then saved using a Output device (such as display) 12 made visible and / or e.g. available via voice output be put.
  • Figures 2 and 3 each show a flux density diagram, the relationship between traffic flow q and Represents traffic density k.
  • the flow of traffic in Cars measured per unit of time, while traffic density k Cars per route unit means.
  • three points A, B, C are highlighted for one low traffic density k1, a medium traffic density k2 and high traffic density k3.
  • the slope of the straight line shown in dashed lines in FIG. 2 gives the average speed of the vehicles. at that explained in connection with Fig. 1
  • points A, B, C are tangents to the Flow density diagram created.
  • the slope of these tangents gives the speed of density waves and the slope a secant, such as that between points A and B is the speed of Shock waves.
  • Density waves settle on positive Slope of the tangents in the direction of travel, with negative Incline against the direction of travel, the latter thus influence the traffic that follows. This can be calculated whether a traffic disruption in a predetermined time a junction of a highway in Direction of travel or against the direction of travel.
  • a driver can decide or recommend a terminal, which connection point to the Leave or used to drive up.
  • Fig. 4 shows a device, which is also preferably in arranged a terminal and by a device 16 for Calculation of route recommendations is added.
  • a memory 17 with a so-called digital Road map, which may also include the list of places 6 can be combined.
  • a keyboard 18 User start, destination and if necessary intermediate Waypoints to be passed on the way enter.
  • the device 16 is that in the receiver 1 selection of the TMC messages carried out controllable in such a way that all TMC messages that may be the calculation influence the route recommendation, be selected. For all of these TMC messages are the relevant data in the Save 3 to 5 and 15 filed.
  • the data belonging to each section of the route is retrievable from the device 16 from the memories, whereupon the result of the evaluation at 11 of the device 16 can be supplied.
  • traffic disruptions and their Effects are taken into account. For example be calculated whether a traffic disruption on one in itself recommended by the route calculation and by the vehicle A section of track to be reached later Represents impairment, so that possibly of another route is recommended in advance.
  • Fig. 5 shows a device according to the invention, which in a Central unit, for example in a central Traffic calculator, is arranged and in its main Components of the device of FIG. 4 corresponds.
  • a Communication network 21 for example ISDN, from one 5 sensors 22 merely indicated in FIG. 5 fed.
  • memories 3 to 5 and 15 the data available for all sections of a route Road network stored so that the device 16 in the Is able to report all traffic disruptions at the Calculation of any route recommendations to be considered.
  • Requirements for calculating a route recommendation and the Route recommendations are calculated at the 5 via a mobile radio network 23 Transfer terminals 24.
  • the keyboard 18 and the Display device 12 can for monitoring and Maintenance tasks are used.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Atmospheric Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Traffic Control Systems (AREA)

Abstract

L'invention concerne un dispositif et un procédé servant à donner des informations sur les encombrements de la circulation, à l'aide de moyens pour recevoir des données de circulation reçues par des capteurs. Selon l'invention, il est prévu des moyens pour calculer des données à émettre décrivant les effets de l'encombrement, à partir des données de circulation reçues, au moyen d'un diagramme flux-densité valable pour un tronçon donné.

Claims (16)

  1. Installation pour informer un conducteur de perturbations de circulation par radio comprenant des moyens pour recevoir des données de circulation de capteurs,
    caractérisée en ce que
    à côté du lieu (localisation) et de l'extension (EXT) de l'encombrement de circulation, on reçoit et on enregistre la densité de circulation (k) dans l'installation de réception, on prend la densité de circulation maximale (kmax) dans une mémoire (6) en fonction du lieu transmis (LOC) ou, le cas échéant, l'information reçue et on l'enregistre, dans la mémoire (6) on prélève en outre le flux de circulation maximum (qmax) suivant le lieu de transmission (LOC) où on reçoit cette information, et elle comporte des moyens (11) qui décrivent l'effet de la perturbation de circulation à partir des données de circulation reçues en tenant compte du diagramme densité-flux.
  2. Installation selon la revendication 1,
    caractérisée en ce qu'
    elle reçoit en outre les informations concernant l'extension (1) de la perturbation de circulation.
  3. Installation selon l'une des revendications précédentes,
    caractérisée en ce que
    les données de circulation reçues sont des messages (TMC) étendus.
  4. Installation selon l'une des revendications 1 à 3,
    caractérisée en ce que
    les données à émettre décrivent la vitesse moyenne et/ou le temps de trajet sur un segment routier connu.
  5. Installation selon l'une des revendications 1 à 3,
    caractérisée en ce que
    les données à émettre décrivent la variation de la longueur de la perturbation de circulation.
  6. Installation selon l'une des revendications 4 et 5,
    caractérisée en ce qu'
    elle comporte, en outre, des moyens pour calculer le trajet recommandé, en tenant compte des données à émettre.
  7. Installation selon la revendication 6,
    caractérisée en ce que
    l'installation et les moyens de calcul des trajets recommandés font partie d'un terminal contenant les données de circulation d'au moins une installation centrale.
  8. Installation selon la revendication 7,
    caractérisée en ce que
    l'installation et les moyens de calcul du trajet recommandé font partie d'une installation centrale recevant des données de terminaux pour le trajet souhaité et qui transmettent le trajet recommandé, calculé, vers les terminaux.
  9. Procédé pour informer un automobiliste par radio pour lui annoncer les perturbations de circulation, les données de circulation étant prises par des capteurs,
    caractérisé en ce que
    à côté du lieu (LOC) et de l'extension (EXT) de la perturbation de circulation, on reçoit la densité de circulation (k) et on l'enregistre,
    on prend ou on reçoit également et on enregistre la densité de circulation maximale (kmax) en fonction du lieu transmis (LOC) dans une mémoire (6),
    dans la mémoire (6) on prélève en outre le débit de circulation maximum (qmax) en fonction du lieu transmis (LOC) où on reçoit l'information,et
    à partir des données de circulation reçues, et en tenant compte du diagramme densité-flux, on décrit l'effet de la perturbation de circulation.
  10. Procédé selon la revendication 8,
    caractérisé en ce qu'
    on reçoit les informations concernant l'extension (1) de la perturbation de circulation.
  11. Procédé selon l'une des revendications 8 à 10,
    caractérisé en ce que
    les données de circulation reçues sont des messages (TMC) étendus.
  12. Procédé selon l'une des revendications 9 à 11,
    caractérisé en ce que
    les données à émettre décrivent la vitesse moyenne et/ou le temps de parcours sur un segment routier connu.
  13. Procédé selon l'une des revendications 9 à 12,
    caractérisé en ce que
    les données à émettre décrivent la variation de la longueur de la perturbation de circulation.
  14. Procédé de transmission d'informations de perturbations de circulation, selon lequel on prend les données de circulation à l'aide de capteurs,
    caractérisé en ce que
    à côté du lieu (LOC) et de l'extension (EXT) de l'obstacle à la circulation, on transmet la densité de circulation (k),
    on transmet de préférence également la densité maximale de circulation (kmax),
    on transmet le flux de circulation maximum (qmax) pour le segment routier, et
    à partir des données de circulation reçues et en tenant compte du diagramme de densité de flux, on détermine l'effet de la perturbation de circulation.
  15. Procédé selon la revendication 14
    caractérisé en ce qu'
    on transmet l'information concernant l'extension de la perturbation de circulation.
  16. Procédé selon l'une des revendications 14 et 15,
    caractérisé en ce que
    les données de circulation transmises sont des messages (TMC) étendus.
EP97951850A 1997-02-28 1997-12-12 Dispositif et procede servant a donner des informations sur les encombrements de la circulation Expired - Lifetime EP0962004B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19708106 1997-02-28
DE19708106A DE19708106A1 (de) 1997-02-28 1997-02-28 Einrichtung und Verfahren zur Information über Verkehrsstörungen
PCT/DE1997/002897 WO1998038617A1 (fr) 1997-02-28 1997-12-12 Dispositif et procede servant a donner des informations sur les encombrements de la circulation

Publications (2)

Publication Number Publication Date
EP0962004A1 EP0962004A1 (fr) 1999-12-08
EP0962004B1 true EP0962004B1 (fr) 2003-05-14

Family

ID=7821802

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97951850A Expired - Lifetime EP0962004B1 (fr) 1997-02-28 1997-12-12 Dispositif et procede servant a donner des informations sur les encombrements de la circulation

Country Status (6)

Country Link
EP (1) EP0962004B1 (fr)
JP (1) JP2001513235A (fr)
KR (1) KR20000071119A (fr)
DE (2) DE19708106A1 (fr)
ES (1) ES2200209T3 (fr)
WO (1) WO1998038617A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009006059A2 (fr) * 2007-06-29 2009-01-08 Microsoft Corporation Modèles prédictifs de la fiabilité routière pour la configuration de détection du trafic et de routage

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EA003137B1 (ru) * 1998-02-05 2003-02-27 Пфайзер Продактс Инк Новые производные дигидроксигексановой кислоты
DE19914041A1 (de) * 1999-03-27 2000-09-28 Bosch Gmbh Robert Verfahren zur Information von Autofahrern
GB9914812D0 (en) * 1999-06-25 1999-08-25 Kew Michael J Traffic monitoring
WO2001006477A1 (fr) * 1999-07-20 2001-01-25 Siemens Aktiengesellschaft Procede et dispositif permettant de traiter des rapports d'etats d'un systeme
DE19951546C2 (de) * 1999-10-26 2002-03-21 Siemens Ag Verfahren zum Benachrichtigen eines Benutzers über eine Verkehrsinformation und Navigationsgerät
DE10014259C2 (de) * 2000-03-22 2003-02-06 Harman Becker Automotive Sys Verfahren zur Berechnung der Fahrtzeit und Navigationssystem
DE102005010246A1 (de) * 2005-03-05 2006-09-07 Deutsche Telekom Ag Verfahren und Vorrichtung zur Übertragung von Normalformen von Verkehrsstörungen zum Zwecke zeitabhängiger Navigation
DE102005032975A1 (de) * 2005-07-14 2007-01-25 Siemens Ag Verfahren und Verkehrsrechner zur Berechnung eines aktuellen oder künftigen Verkehrszustandes
DE102009029531A1 (de) 2009-09-17 2011-03-24 Robert Bosch Gmbh Einschätzung der Straßenverkehrsdichte bei Kraftfahrzeugen

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DE3128578A1 (de) * 1981-07-20 1983-02-03 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt "verfahren zur automatischen staudetektion und stauprognose fuer den strassenverkehr"
AU2268088A (en) * 1987-08-25 1989-03-31 Elin-Union Aktiengesellschaft Fur Elektrische Industrie Improved road traffic-control system
DE4328939C2 (de) * 1993-08-28 2000-06-21 Ave Verkehrs Und Informationst Verfahren zur Erfassung von streckenbezogenen Verkehrsgrößen
DE29505615U1 (de) * 1995-03-31 1995-11-02 Copilot Verkehrsleit Und Verke Verkehrsleitsystem für ein Verkehrswegenetz
EP0740280B1 (fr) * 1995-04-28 1999-07-28 INFORM Institut für Operations Research und Management GmbH Méthode de détection des pertubations pour trafic routièr

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009006059A2 (fr) * 2007-06-29 2009-01-08 Microsoft Corporation Modèles prédictifs de la fiabilité routière pour la configuration de détection du trafic et de routage
WO2009006059A3 (fr) * 2007-06-29 2009-02-19 Microsoft Corp Modèles prédictifs de la fiabilité routière pour la configuration de détection du trafic et de routage
US7948400B2 (en) 2007-06-29 2011-05-24 Microsoft Corporation Predictive models of road reliability for traffic sensor configuration and routing

Also Published As

Publication number Publication date
JP2001513235A (ja) 2001-08-28
EP0962004A1 (fr) 1999-12-08
ES2200209T3 (es) 2004-03-01
WO1998038617A1 (fr) 1998-09-03
KR20000071119A (ko) 2000-11-25
DE19708106A1 (de) 1998-09-03
DE59710100D1 (de) 2003-06-18

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