EP1122701A2 - Verfahren und Vorrichtung zum Erfassen und Beurteilen von Verkehrslagedaten - Google Patents
Verfahren und Vorrichtung zum Erfassen und Beurteilen von Verkehrslagedaten Download PDFInfo
- Publication number
- EP1122701A2 EP1122701A2 EP01101156A EP01101156A EP1122701A2 EP 1122701 A2 EP1122701 A2 EP 1122701A2 EP 01101156 A EP01101156 A EP 01101156A EP 01101156 A EP01101156 A EP 01101156A EP 1122701 A2 EP1122701 A2 EP 1122701A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- transmitted
- traffic
- driving data
- data
- central computer
- 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.)
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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 and a device for detecting and assessing of traffic situation data.
- the traffic control systems known from the prior art are used by a Majority of motor vehicles flowing in traffic, so-called floating cars, Driving data generated and stored in a driving data unit.
- the driving data will out of the vehicle, for example, at regular intervals on the streets arranged receiving stations transmitted.
- There the driving data are evaluated and a traffic situation assessment determined.
- between the receiving stations and the central computer Data transmission operated via mobile radio or via fixed cabling.
- traffic control systems in which none are arranged on the streets Receiving stations are necessary, but the driving data via mobile radio directly be transmitted to a central computer.
- EP 0 880 120 A2 describes a method for recording and reporting Known traffic situation data, at which a predetermined time in the motor vehicle automatic position determination is carried out and depending on it related Traffic situation data are recorded and reported. Together with the trail network furthermore trip duration data about the expected for parts of the route network Travel times saved. After each position has been determined, the previous position determination of the driven route and the associated actual travel time recorded. Is the difference between the actual Trip duration and the one determined from the stored trip duration data expected travel time is greater than a predefinable threshold value, then a Traffic situation data reporting process triggered.
- WO 97/29470 also describes a method for acquiring traffic situation data known in which the current speed of the vehicle is continuously in the vehicle is determined. From the resulting from the measured speeds The characteristic speed indicators of the vehicle are determined, the given for the course of the actually driven speed Sections of the route traveled are characteristic. At the end of each Route section, the data of the section just ended is first in the Vehicle temporarily stored and then transmitted to the central computer.
- the invention is therefore based on the technical problem that the method and Device for recording and assessing traffic situation data to that effect improve that information from the immediate vicinity of the vehicle flowing traffic are determined and transferred to the central computer.
- parameters of the automatic distance control can be transferred to the central computer. It will emphasized that one or more or all parameters for one Traffic situation assessment transmitted and evaluated by the central computer can.
- the preset follow-up target time can be transmitted as a parameter.
- the Safety time indicates the distance at which the controlled motor vehicle is at vehicle in front should follow.
- the subsequent target time corresponds to essentially a response time that remains for the driver to brake the to be able to react in front of the motor vehicle. From the product of the The following target time and the speed traveled result in the spatial Distance between the vehicle in front and the regulated motor vehicle. Depending on Traffic situation, the value of the subsequent target time is either automatic or conscious set by the driver. Long follow-up times are characteristic of short ones Traffic densities, whereas short follow-up times are typical for heavy traffic.
- the parameter of the actual follow-up time or the Distance to a vehicle in front that is on the central computer can be transferred.
- the actual subsequent time is calculated from the measured distance to the vehicle in front multiplied by the Driving speed.
- the relative speed to a be passed in front of the vehicle This value results from the changes over time of the measured distances to vehicles driving in front. If the traffic density is low, i.e. the traffic flows well, the middle one increases Relative speed a low value, because if there is a column traffic, the motor vehicles drive essentially the same speed and a change in Relative speeds rarely occurs. On the other hand, if there is heavy traffic, then come there is typically repeated braking and acceleration of the motor vehicles, which results in regularly changing relative speeds. One determines hence the time average of the relative speed amounts, this sets Measure of traffic density.
- the number of changes of the target object can be used as a parameter Distance control per unit of time can be transmitted to the central computer.
- the automatic distance control is a vehicle driving ahead as Target object used for active control. Pedal when traffic is low due to the typically quiet traffic flowing rarely changing the Target object, since both the motor vehicle in front and the controlled one Only change the lane of motor vehicles with low frequency. At high Traffic density, on the other hand, often changes lanes, so that the automatic Distance control recurring new target objects for controlling the distance must record. Therefore, the number of changes of the target object represents the Distance control is a measure of traffic density.
- the number of lane changes per Time unit represents a parameter for the traffic density, which is on the central computer can be transmitted for a traffic situation assessment.
- All of the parameters to be transmitted can either as individual values or as values arithmetically averaged over predetermined time intervals be transmitted.
- a pre-evaluation takes place in the Motor vehicle instead of before the data are transferred to the central computer. This significantly reduces the amount of data that must be transferred.
- the property is given that the parameter is not the actual driving situation of the motor vehicle itself, but the driving situation of the traffic surrounding this motor vehicle characterized. This makes them useful for an evaluation of the traffic situation Information obtained, which improves the quality of the traffic situation assessment becomes.
- the device for recording traffic situation data has a driving data unit 1 Determining and storing driving data of a motor vehicle 2, the Motor vehicle 2 is shown schematically as a dashed rectangle. Furthermore, one Transmitting device 3 is provided, the driving data wirelessly on a central computer 4 transmitted.
- Receiving station 5 provided with a receiving antenna 6 and a computer 7, the is provided on a road for receiving the driving data.
- a connection 8 which can be implemented wirelessly or by means of a connecting line, then transmits the Receiving station 5 the data on the central computer 4.
- a connection 8 which can be implemented wirelessly or by means of a connecting line, then transmits the Receiving station 5 the data on the central computer 4.
- To a large area network To be able to cover in this way are a plurality of receiving stations 5 provided to determine driving data distributed across the network of points and to transfer to the central computer 4. Therefore, the one shown in the figure Device is only a section of a traffic control system.
- a device 9 for automatic distance control is provided, which is shown in the figure as a dashed rectangle.
- the device 9 is with the Driving data unit 1 for a transmission of at least part of the at Distance control determined parameters connected. This allows the parameters of the automatic distance control on the central computer 4 for a detailed Traffic situation assessment can be transferred.
- the device 9 for automatic distance control typically has a Detection device 10, which with an adjusting device 11, a Distance sensor 12 and a speed sensor 13 is connected.
- the Adjustment device 11 can set the following target time as well as a maximum Speed can be set.
- the distance sensor 12 measures the spatial Distance to a motor vehicle in front and the speed sensor 13 measures the speed traveled.
- the values determined in this way are used by Detection device 10 transmitted to a control unit 14, the evaluation of the Carries out parameters and, if necessary, a braking system 15 activated or in a Engine management 16 intervenes. This regulates the speed of the Motor vehicle regulated so that either the maximum speed is assumed is or a predetermined over the following target time and the driven speed Safety distance to a motor vehicle in front are observed.
- the Control unit 14 transfers the parameters described above to the driving data unit 1, so that the parameters for an automatic distance control also for a Traffic situation assessment can be evaluated.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Traffic Control Systems (AREA)
Abstract
Description
Claims (9)
- Verfahren zum Erfassen und Beurteilen von Verkehrslagedatenbei dem von einer Mehrzahl von im Verkehr fließenden Kraftfahrzeugen (floating cars) Fahrdaten erzeugt werden und gespeichert werden,bei dem die ermittelten Fahrdaten in vorgegebenen Zeitabständen an einen zentralen Rechner übermittelt werden undbei dem die Fahrdaten der Mehrzahl von Kraftfahrzeugen ausgewertet werden und eine Verkehrslagebeurteilung ermittelt wird,daß zumindest ein Teil der Kraftfahrzeuge mit Hilfe einer automatischen Distanzregelung geregelt werden unddaß zumindest ein Teil der bei der automatischen Distanzregelung ermittelten Parameter an den zentralen Rechner übermittelt wird.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß als Parameter die voreingestellte Folgesollzeit übermittelt wird.
- Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß als Parameter die tatsächliche Folgezeit zu einem vorausfahrenden Kraftfahrzeug übermittelt wird.
- Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß als Parameter die Relativgeschwindigkeit zu einem vorausfahrenden Kraftfahrzeug übermittelt wird.
- Verfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß als Parameter die Anzahl der Wechsel des Zielobjektes der Abstandsregelung pro Zeiteinheit übermittelt wird.
- Verfahren nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß als Parameter die Anzahl der Spurwechsel pro Zeiteinheit übermittelt wird.
- Verfahren nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß als Parameter der Abstand zu mindestens einem vorausfahrenden Kraftfahrzeug übermittelt wird.
- Verfahren nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß die Werte der übermittelten Parameter vor einer Übermittlung über vorgegebene Zeitabstände arithmetisch gemittelt werden.
- Vorrichtung zum Erfassen von Verkehrslagedaten,mit einer Fahrdateneinheit (1) zum Ermitteln und Speichern von Fahrdaten eines Kraftfahrzeuges (2) undmit einer Sendevorrichtung (3) zum drahtlosen Übermitteln der Fahrdaten an einen zentralen Rechner (4)daß eine Vorrichtung (9) zur automatischen Distanzregelung vorgesehen ist, die für eine Übertragung zumindest eines Teils der bei der Distanzregelung ermittelten Parameter mit der Fahrdateneinheit (1) verbunden ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2000104524 DE10004524A1 (de) | 2000-02-02 | 2000-02-02 | Verfahren und Vorrichtung zum Erfassen und Beurteilen von Verkehrslagedaten |
DE10004524 | 2000-02-02 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1122701A2 true EP1122701A2 (de) | 2001-08-08 |
EP1122701A3 EP1122701A3 (de) | 2002-07-31 |
Family
ID=7629568
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01101156A Withdrawn EP1122701A3 (de) | 2000-02-02 | 2001-01-23 | Verfahren und Vorrichtung zum Erfassen und Beurteilen von Verkehrslagedaten |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1122701A3 (de) |
DE (1) | DE10004524A1 (de) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3509966A1 (de) * | 1985-03-20 | 1986-09-25 | ANT Nachrichtentechnik GmbH, 7150 Backnang | Fahrtschreiber fuer fahrzeuge |
DE19643454A1 (de) * | 1996-10-10 | 1998-04-23 | Mannesmann Ag | Verfahren und Vorrichtung zur Übermittlung von Daten zur Verkehrslagebeurteilung |
DE19700353A1 (de) * | 1997-01-08 | 1998-07-09 | Diethard Kersandt | Vorrichtung und Verfahren zur Diagnose, Steuerung, Übertragung und Speicherung sicherheitsrelevanter Systemzustandsgrößen eines Kraftfahrzeuges |
DE19736964A1 (de) * | 1997-08-25 | 1999-03-04 | Mannesmann Vdo Ag | Verfahren und Anordnung zur Bestimmung eines Regelobjektes |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19638069B4 (de) * | 1996-09-18 | 2014-05-08 | T-Mobile Deutschland Gmbh | Verfahren und Einrichtung zur Erfassung von Verkehrsdaten von Fahrzeugen |
DE19821163A1 (de) * | 1998-05-12 | 1999-11-18 | Volkswagen Ag | Fahrer-Assistenzsystem und Verfahren zu dessen Betrieb |
-
2000
- 2000-02-02 DE DE2000104524 patent/DE10004524A1/de not_active Withdrawn
-
2001
- 2001-01-23 EP EP01101156A patent/EP1122701A3/de not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3509966A1 (de) * | 1985-03-20 | 1986-09-25 | ANT Nachrichtentechnik GmbH, 7150 Backnang | Fahrtschreiber fuer fahrzeuge |
DE19643454A1 (de) * | 1996-10-10 | 1998-04-23 | Mannesmann Ag | Verfahren und Vorrichtung zur Übermittlung von Daten zur Verkehrslagebeurteilung |
DE19700353A1 (de) * | 1997-01-08 | 1998-07-09 | Diethard Kersandt | Vorrichtung und Verfahren zur Diagnose, Steuerung, Übertragung und Speicherung sicherheitsrelevanter Systemzustandsgrößen eines Kraftfahrzeuges |
DE19736964A1 (de) * | 1997-08-25 | 1999-03-04 | Mannesmann Vdo Ag | Verfahren und Anordnung zur Bestimmung eines Regelobjektes |
Also Published As
Publication number | Publication date |
---|---|
DE10004524A1 (de) | 2001-08-09 |
EP1122701A3 (de) | 2002-07-31 |
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