EP1295273B1 - Verfahren zur erfassung von verkehrslagedaten - Google Patents
Verfahren zur erfassung von verkehrslagedaten Download PDFInfo
- Publication number
- EP1295273B1 EP1295273B1 EP01955212A EP01955212A EP1295273B1 EP 1295273 B1 EP1295273 B1 EP 1295273B1 EP 01955212 A EP01955212 A EP 01955212A EP 01955212 A EP01955212 A EP 01955212A EP 1295273 B1 EP1295273 B1 EP 1295273B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- route
- terminals
- traffic
- terminal
- base stations
- 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
Links
Images
Classifications
-
- 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
- G08G1/0137—Measuring and analyzing of parameters relative to traffic conditions for specific applications
- G08G1/0141—Measuring and analyzing of parameters relative to traffic conditions for specific applications for traffic information dissemination
-
- 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
- G08G1/0108—Measuring and analyzing of parameters relative to traffic conditions based on the source of data
- G08G1/012—Measuring and analyzing of parameters relative to traffic conditions based on the source of data from other sources than vehicle or roadside beacons, e.g. mobile networks
-
- 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
- G08G1/0125—Traffic data processing
- G08G1/0133—Traffic data processing for classifying traffic situation
Definitions
- the invention relates to a method for detecting traffic situation data in one Traffic infrastructure network, that of a cellular mobile network with a variety of Base stations is covered and in which a variety of vehicles moves, the each with an operating mobile terminal for the mobile network, in particular a mobile phone, wherein information about Signal transit times between the terminals and the base stations detected and the Estimation of the current location of individual terminals are used.
- TDMA mobile radio systems is the duration of each wireless connection between the mobile terminal and the Base stations of the mobile network for the purpose of adjusting the terminal synchronization, So determines the phase of the TDMA frame at the terminal. Because the Runtime of the signal is representative of the distance between the terminal and the respective base station can in principle a very simple location determination occur when the distances to several base stations are known. Consequently there is a possibility to determine the current geographical position of the respective terminal relative to the known geographical positions of the Base stations.
- the location can thus also without the use of a GPS system, however, the accuracy is due to the limited resolution (about 500 m) generally lower. Especially in metropolitan areas would be due this limited accuracy no unique assignment of a mobile terminal, that is in a vehicle on a road, possible to this road.
- EP-A-0412286 mentions the propagation time measurements of the emission at least describes three transmitters. This corresponds to the known GPS used Triangulation.
- WO 9810307 is still a method for locating a mobile terminal in which the signal propagation times are first measured to map a pattern. These patterns are saved as a "Signature" file. The position of the terminal is then determined using this pattern of at least one base station. With a Capturing traffic situation data in a traffic network has nothing to do.
- Object of the present invention is a method of the type mentioned in such a way that despite the limited resolution in the Position determination of a mobile terminal in a mobile network a very Reliable detection of the traffic situation on certain traffic routes Traffic network can be ensured without the use of special Facilities directed to the collection of traffic data in which the Vehicles using traffic routes is required.
- a calibration phase of a In the calibration phase the database for the Implementation of the actual use phase is laid in which the current Recording of the traffic situation data takes place.
- An essential feature of the invention is that at least for a part of the individual traffic routes of the traffic route network at least for selected base stations of the traffic network superimposed Cellular cellular network characteristic patterns of values for the Signal propagation times relative to the respective base station during movement of a terminal along the route of the respective traffic route are representative determined and permanently (database). The storage of these values can be done in the respective base station or in any central office for several or all Base stations take place together. In the following, these values become simplistic referred to by the term signal propagation times.
- the current signal transit times are more selected Terminals that are in the transmission area of the respective base station, with the compared stored patterns. As far as doing so significant matches can be decided with great certainty, on which traffic route the respective terminal is currently located or on which traffic route it is currently was moved. This decision then provides the basis for the required Information about the traffic situation assessment.
- a terminal When a terminal is detected, its pattern at current signal delays with none of the stored characteristic pattern, then it is a terminal that e.g. carried by a pedestrian away from a traffic route or on a previously the traffic situation monitoring not underlying route is on the way.
- each base station has a has unique identifier, so that by appending this identifier to the given value of the term is given a unique assignment.
- the characteristic patterns determined in the calibration phase can be, for example through statistical analysis of a variety of moving over the roads Terminals that are located in vehicles, for example, win. If many Vehicles traveling the same route must be in terms of Signal delays result in values that are a very strong match demonstrate. Since each location of a route is a typical value of signal transit time to belongs to each base station, must be in each sequence of values a variety of Values are located in the same way in the value sequences for terminal devices occur that have traveled the same distance. When the signal transit times in certain predetermined time intervals, is the number of for a course certain values determined depending on the particular Speed at which the terminal covers the distance. The value sequence Therefore, for the sake of comparability, it has to be reduced to one Standard speed compressed or pulled apart.
- traffic situation data can be achieved by adding, in addition to the Signal transit times of the terminals selected for observation also include information recorded and temporarily stores the time of the detected signal transit times.
- the size of signal propagation times can be determined by the timing information and the assignment of the values of the Signal transit times to geographical locations (with appropriate intervals derive from each other sizes that are responsible for the speed of movement of the respective terminal along the associated traffic route are representative. With Determining the current speed is a meaningful quantity for Assessment of the traffic situation.
- the evaluation of the measured values determined according to the invention can basically be made within a base station. But it can also be beneficial Development of the invention, a traffic situation center be provided for a Variety of base stations is responsible and to which the information obtained to get redirected. This can be done appropriately in such a way that in each case in The base stations already preprocessing and compression of the data volume is made and that priority only in case of detection of anomalies in the Traffic situation of each observed sub-area of the traffic route network one Forwarding to the traffic management center takes place.
- a large Percentage of terminals used to obtain information about Traffic situation assessment selected is expediently a large Percentage of terminals used to obtain information about Traffic situation assessment selected. For example, if only 10 devices in one are active in such area, are expediently all in the observation included. If, however, the number of terminals operated in such a Subarea considerably larger, then a restriction to a small one Percentage completely sufficient. So you can, for example, at 100 devices in 20% of the same area and 1,000 terminals in that area Restrict area to 5%, for example to drive up the hill. In principle, then, the percentage of the selected Devices may be the smaller the larger the number of terminals in one observed sub-area of the traffic route network is.
- the inventive method can be in a GSM mobile network apply.
- the spatial resolution in the position determination according to the invention Method can be improved by the fact that the smallest measuring unit, which in the Determination of the signal propagation times in the respective mobile radio network is used, is reduced.
- this measuring unit is for example 3.69 ⁇ s. This corresponds to a simple, since the signal transit time includes the round trip Distance of about 550 m.
- the inventive method is less about the exact location of a individual mobile terminal, but rather the counting and tracking of a sufficient number of terminals located in a limited area (e.g. a road section) are present and move accordingly. It lies a great advantage of the present invention is that the required Communication costs can be kept extremely low.
- the Essential evaluations can namely in the respective base stations be executed, in which anyway for the operation of the mobile network, the Signal transit times must be determined.
- the emergence of communication costs can be limited to the cases in which the evaluation in a base station pointing to the existence of an atypical traffic situation which points to the head office must be forwarded.
- the figure shows a detail of three base stations BS1, BS2, BS3 one Mobile network, in whose coverage area a main street and a side street run, with the side street opens into the main street.
- concentric Circles are the increasing signal propagation times in the respective transmission area of the Base stations BS1, BS2, BS3 shown
- the individual circles are ascending with the numbers 1 to 5, while the position of the base station itself with the Number 0 is Occupied
- the area of the first circle includes the places where the signal propagation time is less than 3.69 ⁇ s.
- the step from one circle to the next corresponds to a simple one Distance of about 550 m.
- a terminal located in the territory of the three base stations moves, so one of the movement corresponding sequence of signal delays with respect to the three base stations that use the road typical, i. is unique.
- Each measurement point along the road comes with a value pair of three individual terms related to each one of the three base stations. For example, if a terminal carried in a vehicle is on the vehicle Main street at the junction of the side street, so would for this measuring point the Value pair (5, 4, 5) can be determined.
- the terminal is relative to the base station BS1 in the circle 5, with respect to the base station BS2 in the circle 4 and with respect to the base station BS3 in the circle 5.
- the "term coordinate" of the base station 1 remains for short time at the value 5 and then gradually increases.
- the "runtime coordinate" with respect to the base station 2 briefly from the value of 4 and persists for a longer time at the value 5, while the "runtime coordinate" with respect to the base station 3 first changes from 5 to 4 and then on for a long time the value 3 remains. In this way, you can enter the geographical route Characteristic pattern of values corresponding to terms or maturities be assigned.
Description
Claims (11)
- Verfahren zur Erfassung von Verkehrslagedaten in einem Verkehrswegenetz, das von einem zellularen Mobilfunknetz mit einer Vielzahl von Basisstationen überdeckt ist und in dem sich eine Vielzahl von Fahrzeugen bewegt, die jeweils mit einem in Betrieb befindlichen mobilen Endgerät für das Mobilfunknetz versehen sind, wobei informationen über Signallaufzeiten zwischen den Endgeräten und den Basisstationen erfasst und zur Abschätzung des aktuellen Ausfenthaltsorts einzeiner Endgeräte benutzt werden,
dadurch gekennzeichnet,dass zumindest für einen Teil der einzelnen Verkehrswege des Verkehrswegenetzes zumindest für ausgewählte Basisstationen charakteristische Muster von Werten , die für die Signallaufzeiten bezüglich der jeweiligen Basisstation bei Bewegung eines Endgeräts entlang dem Streckenverlauf des jeweiligen Verkehrswegs repräsentativ sind, ermittelt und dauerhaft gespeichert werden,dass das jeweilige charakteristische Muster oder eine für dieses Muster repräsentative Wertefolge auf den Streckenverfauf des jeweiligen Verkehrswegs abgebildet wird ,dass zur Gewinnung aktueller Verkehrslageinformationen die Signallaufzeiten ausgewählter Endgeräte, die sich im Sendegebiet der jeweiligen Basisstation befinden, erfasst und mit den gespeicherten Mustem verglichen werden, wobei anhand des Vergleichs entschieden wird, auf welchem Verkehrsweg sich das jeweilige Endgerät aktuell befindet oder auf welchem Verkehrsweg es bewegt wurde,dass daraus informationen zur Verkehrslagebeurteilung gewonnen werden unddass die charakteristischen Muster durch fortlaufende Erfassung der für ein einzelnes, vorzugsweise mittels eines Fahrzeugs bewegtes Endgerät gemessenen Signallaufzeiten im jeweiligen Sendegebiet einer Basisstation ermittelt werden. - Verfahren nach Anspruch 1,
dadurch gekennzeichnet dass die charakteristischen Muster durch statistische Auswertungen der Signallaufzeiten einer Vielzahl von über die Verkehrswege bewegten Endgeräten gewonnen werden. - Verfahren nach einem der Ansprüche 1 bis 2,
dadurch gekennzeichnet, dass die charakteristischen Muster der Signallaufzeiten aus den Werten bezüglich mehrerer benachbarter Basisstationen gebildet werden, wobei dem jeweiligen Aufenthaltsort des Endgeräts jeweils ein entsprechendes Wertepaar im Sinne der Koordinaten eines vielachsigen Koordinatensystems zugeordnet werden. - Verfahren nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet, dass zusätzlich zu den Signallaufzeiten der ausgewählten Endgeräte auch Informationen über den Zeitpunkt der Ermittlung dieser Signallaufzeiten erfasst und zeitweilig gespeichert werden. - Verfahren nach Anspruch 4,
dadurch gekennzeichnet, dass anhand der Zeitpunktinformationen und der Zuordnung der Werte der Signallaufzeiten zum Streckenverlauf Größen abgeleitet werden, die für die Geschwindigkeit der Bewegung des Endgeräts entlang des jeweils zugeordneten Verkehrswegs repräsentativ sind. - Verfahren nach einem der Ansprüche 1 bis 5,
dadurch gekennzeichnet, dass die gewonnenen Informationen an eine für eine Vielzahl von Basisstationen zuständige Verkehrslagezentrale weitergemeldet werden. - Verfahren nach Anspruch 6,
dadurch gekennzeichnet, dass die Informationen vorrangig nur bei Feststellung von Anomalien in der Verkehrslage des jeweils beobachteten Teilgebiets des Verkehrswegenetzes weitergemeldet werden. - Verfahren nach einem der Ansprüche 1 bis 7,
dadurch gekennzeichnet, dass bei einer kleinen Anzahl von Endgeräten, die sich in einem Teilgebiet des Verkehrswegenetzes aktuell aufhalten, ein großer Prozentsatz der Endgeräte zur Gewinnung von Informationen zur Verkehrslagebeurtellung ausgewählt wird, während bei einer entsprechend großen Anzahl von Endgeräten nur ein kleiner Prozentsatz ausgewählt wird. - Verfahren nach einem der Ansprüche 1 bis 8,
dadurch gekennzeichnet, dass die Zahl der in einer Zeiteinheit im Bereich eines Verkehrsweges sich bewegenden Endgeräte als Kriterium für die Verkehrslagebeurteilung mit herangezogen wird. - Verfahren nach einem der Ansprüche 1 bis 9,
dadurch gekennzeichnet, dass im Falle der vollständig oder nahezu zeitgleichen Erfassung mehrerer Endgeräte mit demselben charakteristischen Muster der Signallaufzeiten lediglich eines dieser Endgeräte für die Auswertung berücksichtigt wird. - Verfahren nach einem der Ansprüche 1 bis 10,
dadurch gekennzeichnet, dass es in einem GSM-Mobilfunknetz angewendet wird.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10029115 | 2000-06-14 | ||
DE10029115A DE10029115A1 (de) | 2000-06-14 | 2000-06-14 | Verfahren zur Erfassung von Verkehrslagedaten |
PCT/DE2001/002217 WO2001097195A1 (de) | 2000-06-14 | 2001-06-13 | Verfahren zur erfassung von verkehrslagedaten |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1295273A1 EP1295273A1 (de) | 2003-03-26 |
EP1295273B1 true EP1295273B1 (de) | 2005-03-02 |
Family
ID=7645580
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01955212A Expired - Lifetime EP1295273B1 (de) | 2000-06-14 | 2001-06-13 | Verfahren zur erfassung von verkehrslagedaten |
Country Status (8)
Country | Link |
---|---|
US (1) | US7162251B2 (de) |
EP (1) | EP1295273B1 (de) |
JP (1) | JP3990629B2 (de) |
AT (1) | ATE290245T1 (de) |
AU (1) | AU2001277463A1 (de) |
DE (2) | DE10029115A1 (de) |
ES (1) | ES2236274T3 (de) |
WO (1) | WO2001097195A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108281023A (zh) * | 2016-12-30 | 2018-07-13 | 中国移动通信集团公司 | 一种通过移动终端展示实时路况的方法和系统 |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2834109B1 (fr) * | 2001-12-26 | 2005-06-10 | France Telecom | Procede de delivrance d'informations de trafic de mobiles en deplacement |
ATE434357T1 (de) * | 2002-04-03 | 2009-07-15 | Alcatel Lucent | Kapazitätsplanung und -optimierung in einem zellularen mobilen telekommunikationsnetz |
US20070132577A1 (en) * | 2005-12-09 | 2007-06-14 | Honeywell International Inc. | Method and apparatus for estimating the location of a signal transmitter |
US8320933B2 (en) * | 2007-02-28 | 2012-11-27 | Polaris Wireless, Inc. | Estimating whether or not a wireless terminal is in a zone using radio navigation |
US9247516B2 (en) | 2007-02-28 | 2016-01-26 | Polaris Wireless, Inc. | Estimating whether or not a wireless terminal is in a geographic zone using pattern classification |
US7830250B2 (en) * | 2007-10-22 | 2010-11-09 | Honeywell International Inc. | Apparatus and method for location estimation using power supply voltage levels of signal transmitters |
US7852205B2 (en) * | 2008-04-10 | 2010-12-14 | Honeywell International Inc. | System and method for calibration of radio frequency location sensors |
EP2259084A1 (de) * | 2009-06-03 | 2010-12-08 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Verfahren und Funkeinrichtung zur Detektion einer Bewegung |
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DE3926180A1 (de) * | 1989-08-08 | 1991-02-14 | Bosch Gmbh Robert | Verfahren zur fahrtroutenselektiven wiedergabe digital codierter, von einem sender zu einem fahrzeugempfaenger uebertragener verkehrsnachrichten sowie fahrzeugempfaenger |
JPH07111675A (ja) * | 1993-08-19 | 1995-04-25 | Nippon Steel Corp | 移動体の位置決め方法及びその装置、並びにそれを用いた移動体通信システム |
US5614914A (en) * | 1994-09-06 | 1997-03-25 | Interdigital Technology Corporation | Wireless telephone distribution system with time and space diversity transmission for determining receiver location |
DE19513640C2 (de) | 1994-11-28 | 1997-08-07 | Mannesmann Ag | Verfahren zur Reduzierung einer aus den Fahrzeugen einer Fahrzeugflotte zu übertragenden Datenmenge |
SE512065C2 (sv) * | 1995-02-16 | 2000-01-24 | Europolitan Ab | Förfarande och anordning för positionsbestämning av en mobilstation i ett cellulärt mobiltelefonsystem |
DE19638070A1 (de) * | 1996-09-18 | 1998-03-19 | Deutsche Telekom Mobil | Verfahren zur Verkehrsdatenerfassung mittels Mobilfunkgeräten |
DE19638798A1 (de) | 1996-09-20 | 1998-03-26 | Deutsche Telekom Mobil | Verfahren zur Verkehrsdatenerfassung mittels Mobilfunknetzen |
DE19643454C2 (de) * | 1996-10-10 | 2003-08-21 | Mannesmann Ag | Verfahren und Vorrichtung zur Übermittlung von Daten zur Verkehrslagebeurteilung |
DE19755875A1 (de) * | 1996-12-09 | 1998-06-10 | Mannesmann Ag | Verfahren zur Übertragung von Ortsdaten und Meßdaten von einem Endgerät, insbesondere Telematikendgerät an eine Verkehrszentrale |
US6148211A (en) * | 1997-09-05 | 2000-11-14 | Motorola, Inc. | Method and system for estimating a subscriber's location in a cluttered area |
DE19836089A1 (de) | 1998-07-31 | 2000-02-03 | Inst Halbleiterphysik Gmbh | Verfahren zur Ermittlung von dynamischen Verkehrsinformationen |
DE19836778C2 (de) | 1998-08-13 | 2002-01-31 | Siemens Ag | Verfahren zur Positionsbestimmung einer TDMA-Mobilfunk-Mobilstation |
US6466862B1 (en) * | 1999-04-19 | 2002-10-15 | Bruce DeKock | System for providing traffic information |
DE19928451A1 (de) * | 1999-06-23 | 2001-01-11 | Blic Beratungsgesellschaft Fue | Ortungsverfahren mit einem Mobilfunksystem |
JP3595738B2 (ja) * | 1999-08-30 | 2004-12-02 | 松下電器産業株式会社 | 距離検出方法、位置検出方法及びその装置 |
US6442394B1 (en) * | 1999-10-01 | 2002-08-27 | Ericsson Inc. | Systems and methods for providing vehicular traffic information to a mobile station (MS) through a wireless telecommunications network |
US6300905B1 (en) * | 1999-10-05 | 2001-10-09 | Lucent Technologies Inc. | Location finding using a single base station in CDMA/TDMA systems |
-
2000
- 2000-06-14 DE DE10029115A patent/DE10029115A1/de not_active Ceased
-
2001
- 2001-06-13 DE DE50105478T patent/DE50105478D1/de not_active Expired - Lifetime
- 2001-06-13 EP EP01955212A patent/EP1295273B1/de not_active Expired - Lifetime
- 2001-06-13 AU AU2001277463A patent/AU2001277463A1/en not_active Abandoned
- 2001-06-13 WO PCT/DE2001/002217 patent/WO2001097195A1/de active IP Right Grant
- 2001-06-13 ES ES01955212T patent/ES2236274T3/es not_active Expired - Lifetime
- 2001-06-13 JP JP2002511315A patent/JP3990629B2/ja not_active Expired - Fee Related
- 2001-06-13 US US10/311,567 patent/US7162251B2/en not_active Expired - Fee Related
- 2001-06-13 AT AT01955212T patent/ATE290245T1/de active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108281023A (zh) * | 2016-12-30 | 2018-07-13 | 中国移动通信集团公司 | 一种通过移动终端展示实时路况的方法和系统 |
CN108281023B (zh) * | 2016-12-30 | 2020-08-21 | 中国移动通信集团公司 | 一种通过移动终端展示实时路况的方法和系统 |
Also Published As
Publication number | Publication date |
---|---|
ES2236274T3 (es) | 2005-07-16 |
DE10029115A1 (de) | 2001-12-20 |
US7162251B2 (en) | 2007-01-09 |
WO2001097195A1 (de) | 2001-12-20 |
AU2001277463A1 (en) | 2001-12-24 |
JP2004503886A (ja) | 2004-02-05 |
JP3990629B2 (ja) | 2007-10-17 |
US20030153331A1 (en) | 2003-08-14 |
EP1295273A1 (de) | 2003-03-26 |
ATE290245T1 (de) | 2005-03-15 |
DE50105478D1 (de) | 2005-04-07 |
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