EP1295273A1 - Verfahren zur erfassung von verkehrslagedaten - Google Patents
Verfahren zur erfassung von verkehrslagedatenInfo
- Publication number
- EP1295273A1 EP1295273A1 EP01955212A EP01955212A EP1295273A1 EP 1295273 A1 EP1295273 A1 EP 1295273A1 EP 01955212 A EP01955212 A EP 01955212A EP 01955212 A EP01955212 A EP 01955212A EP 1295273 A1 EP1295273 A1 EP 1295273A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- traffic
- route
- signal
- values
- network
- 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
Links
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 recording traffic situation data in a traffic network, which is covered by a cellular Mobilfu ⁇ netz with a plurality of base stations and in which a large number of vehicles are moving, each with a mobile terminal in operation for the mobile radio network, in particular one Mobile phones are provided, information about signal runtime between the end devices and the base stations being acquired and used to estimate the current location of individual end devices.
- the vehicle position takes place in the vehicle itself, for example by using a navigation satellite system (eg GPS). Since reliable recording of the traffic situation requires a large number of vehicles from the sample vehicle fleet, there is a considerable outlay for carrying out the data traffic between the vehicles and the head office. To limit this effort, it is known, for example from EP 0 715 285 B1, to provide the vehicles of the sample vehicle fleet with specifications from the head office for the conditions under which data transmission from the vehicles to the head office is to be carried out at all, so that the Data traffic can occur in the event of traffic flow disruptions. Nevertheless, this method not only places a considerable load on the channels of the mobile radio network used, but also requires special equipment in the individual vehicles of the sample vehicle fleet.
- a navigation satellite system eg GPS
- DE 198 36 178 A1 discloses a method for localizing mobile telephones in a mobile radio network by triangulation on the basis of signal propagation times between the mobile telephone to a plurality of base stations, in the transmission range of which the mobile telephone is located.
- TDMA mobile radio systems the transit time of each radio connection between the mobile terminal and the base stations of the mobile radio network is determined for the purpose of adjusting the terminal synchronization, that is to say the phase of the TDMA frame on the terminal. Since the transit time of the signal is representative of the distance between the terminal and the respective base station, in principle a very simple location can be determined if the distances to several base stations are known.
- the location can also be carried out without the use of a GPS system, but the accuracy is generally lower due to the limited resolution (approx. 500 m). In particular in metropolitan areas, due to this limited accuracy, it would not be possible to clearly assign a mobile terminal that is located in a vehicle on a road to this road.
- DE 98 36 089 A1 describes a method for determining dynamic traffic information, in which the base stations of a mobile radio network set up in a traffic route network estimate the respective distance to a mobile end device based on the received signal strength and infer movements of the mobile terminal device by changing the signal strength ,
- the resolution of this method is comparatively coarse and therefore less suitable, in particular, for traffic networks with a high traffic route density.
- Another advantage of this method is the fact that no special end devices need to be available in the individual vehicles, but the presence of, for example, a mobile telephone in operation in the vehicle is sufficient.
- Another method for traffic situation data acquisition by means of mobile radio networks is known from DE 196 38 798 A1. There, a method is described in which operating parameters in the mobile radio network, for example the number of handovers at the boundary of two cells on a street, are specifically evaluated. The evaluated operating parameters relate to operational processes and conditions in the
- Mobile network and correlate with certain traffic conditions in the traffic network.
- data is collected over a long period of time and processed into "profiles".
- the currently recorded operating parameters of the mobile radio network are compared with these profiles, and any deviations that indicate abnormal traffic conditions are compared to a
- a disadvantage of this method is that the resolution cannot be reliably reproduced when evaluating handovers at cell boundaries.
- the cell boundaries are naturally arranged in a fixed position and therefore do not offer a method approach that would be comparable to a traffic situation data acquisition by means of a sample vehicle fleet. Cell boundaries cannot be clearly mapped to specific street segments everywhere, so that this known method only appears to be localized and can be used sensibly outside of metropolitan areas.
- the object of the present invention is to further develop a method of the type mentioned at the outset such that, despite the limited resolution when determining the position of a mobile terminal in a mobile network, a very reliable detection of the traffic situation on certain traffic routes of a traffic network can be ensured without the use of special ones Facilities aimed at collecting traffic situation data, in which the
- a calibration phase can be distinguished from a use phase, the database for the Implementation of the actual usage phase is laid, in which the ongoing recording of the traffic situation data is carried out. It is an essential feature of the invention that at least for a part of the individual traffic routes of the traffic route network, at least for selected base stations of the cellular cellular network superimposed on the traffic route network, characteristic patterns of values that are relevant for the
- Signal transit times with respect to the respective base station when a terminal device is moved along the route of the respective traffic route are representative, determined and stored permanently (database). These values can be stored in the respective base station or in any central station for several or all base stations together. In the following, these values are referred to simply as the term signal propagation times. It is clear that this is not necessarily are real values, but 'can also be values that correspond to such values.
- a certain signal transit time to a selected base station can thus be assigned to each location of a traffic route.
- a characteristic pattern for the geometrical route distribution of a traffic route from Sig ⁇ allaufzeite ⁇ to a base station is assigned to each location of a traffic route.
- Such characteristic patterns or, alternatively, a sequence of values representative of such a pattern are mapped to the route of the respective traffic routes in the second step of the calibration phase of the method according to the invention.
- the database compiled during the calibration phase thus results in characteristic patterns of for the individual traffic routes
- the current signal propagation times of selected terminal devices which are in the transmission area of the respective base station are compared with the stored patterns.
- This decision provides the basis for the required information on the traffic situation assessment.
- the pattern matches at the current Signalönzeite ⁇ with any of the stored master characteristic patterns, then there is a E ⁇ dillon which, for example carried by a pedestrian away of a highway or on a previously the Verkeh 'rslageüberwachu ⁇ g not subject distance is traveling.
- each base station has a unique key, so that by appending this identifier to the respective value of the runtime, there is a clear assignment.
- the characteristic patterns determined in the calibration phase can be obtained, for example, by statistical evaluations of a large number of mobile devices which are moved via the traffic routes and are located in vehicles, for example. If many vehicles travel the same route, the
- Signal runtime from the signal runtime which corresponds to the actual distance of a measurement location on the way from the respective base station, practically does not lead to errors in the method according to the invention, since the method does not rely on the direct calculation of distances, but instead carries out the pattern comparison described above. Deviations from the theoretical Signal run times result in particular from fixed interference influences which influence the characteristic pattern as well as the current measurements in the same way. In this respect, the effects of corresponding distortions in the individual values are automatically eliminated.
- the individual location positions along the course of the route ie the respective locations of the terminal, are each assigned value pairs with a corresponding number of individual values per position in accordance with the number of base stations taken into account.
- these pairs of values represent the coordinates of a corresponding multi-axis coordinate system.
- the direction in which a device is moved along a path can be easily recognized from the sequence in which the individual “path points” of the respective characteristic pattern are passed.
- the fact that the terminals move along a certain route allows, at least with regard to the traffic situation assessment, to state that the corresponding route is basically navigable in the determined direction of movement. If one also evaluates the number of moving devices moving in a section of the route, indications of the traffic density can be obtained, in particular if representative historical values are available for comparison.
- Traffic situation data can, however, be achieved in that, in addition to the signal transit times of the observation devices selected for observation, information about the time of the determined signal transit times is also recorded and temporarily stored. Since the size of the signal run times, especially if they were determined for several base stations, corresponds to a specific location on the respective route, the timing, and the assignment of the values of the signal run times to geographical locations (with corresponding distances from one another) can be used to derive sizes for the speed of movement of the respective terminal along the assigned traffic route are representative. With the determination of the current speed, a meaningful quantity is given for assessing the traffic situation.
- a traffic situation center can be provided which is responsible for a multiplicity of base stations and to which the information obtained is forwarded. This can expediently be carried out in such a way that preprocessing and compression of the data volume is already carried out in the base stations and that a forwarding to the traffic situation center takes place primarily only when anomalies are found in the traffic situation of the respectively observed sub-area of the traffic route network.
- the percentage of devices selected may be smaller the larger the number of devices in an observed sub-area of the traffic network.
- the method according to the invention can advantageously be used in a GSM mobile radio network.
- the spatial resolution when determining the position using the method according to the invention can be improved by reducing the smallest measuring unit which is used as a basis for determining the signal run times in the respective mobile radio network.
- this measuring unit is, for example, 3.69 ⁇ s. This corresponds to a simple distance of around 550 m, since the signal run includes the outward and return journey.
- the method according to the invention is less about the exact location of an individual mobile radio terminal, but rather about counting and tracking a sufficient number of terminals which are present in a spatially limited area (for example a road section) and move accordingly.
- a great advantage of the present invention is that the required communication costs can be kept extremely low.
- the main analyzes can be performed in the Basisstatio ⁇ en namely where anyway for the operation of the Mobilfu ⁇ k ⁇ etzes' Signal Lucaseeiten determined Will need.
- the emergence of communication costs can be limited to the cases in which the evaluation in a base station indicates the presence of an atypical traffic situation that must be forwarded to the central office.
- the figure shows a section of three base stations BS1, BS2, BS3 of a mobile network, in the transmission area of which a main road and a secondary road run, the secondary road opening into the main road.
- the increasing signal travel times in the respective region of the base station BS1, BS2, BS3 are shown.
- the individual circles are denoted in ascending order with the numbers 1 to 5, while the position of the base station itself is assigned the number 0.
- the area of the first circle includes the locations at which the signal runtime is less than 3.69 ⁇ s. is.
- the signal running times are each in the range of once or twice 3.69 ⁇ s, etc.
- the step from one circle to the next larger corresponds to a simple distance of approximately 550 m.
- a terminal that moves in the area of the three base stations will therefore generate a sequence of signal propagation times with respect to the three base stations that corresponds to the movement and is typical of the road course used, i.e. is clear.
- Each measuring point along the road is assigned a pair of values of three individual transit times in relation to one of the three base stations. If an E ⁇ d device carried in a vehicle is located, for example, on the main road at the junction of the secondary road, this would be the case for this measurement point
- Value pair (5; 4; 5) can be determined. This means that the device is located in the district 5 with respect to the base station BS1, in the district 4 with respect to the base station BS2 and in the district 5 with respect to the base station BS3. If the vehicle turns into the side street, the "Laufeitkoordi ⁇ ate" of the base station 1 initially remains at the value 5 for a short time and then gradually increases. Changes at the same time the "running time coordinate" with respect to the base station 2 briefly changes from the value 4 and remains at the value 5 for a longer time, while the "running time coordinate" with respect to the base station 3 initially changes from 5 to 4 and then remains at the value 3 for a long time. In this way, a characteristic pattern of running times or values corresponding to the running times can be assigned to the geographic route.
Landscapes
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mobile Radio Communication Systems (AREA)
- Traffic Control Systems (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
- Recording Measured Values (AREA)
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10029115A DE10029115A1 (de) | 2000-06-14 | 2000-06-14 | Verfahren zur Erfassung von Verkehrslagedaten |
| DE10029115 | 2000-06-14 | ||
| PCT/DE2001/002217 WO2001097195A1 (de) | 2000-06-14 | 2001-06-13 | Verfahren zur erfassung von verkehrslagedaten |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1295273A1 true EP1295273A1 (de) | 2003-03-26 |
| EP1295273B1 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) |
Families Citing this family (9)
| 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 |
| EP1351532B1 (de) * | 2002-04-03 | 2009-06-17 | 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 |
| 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 |
| 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 |
| 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 |
| 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 |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 AU AU2001277463A patent/AU2001277463A1/en not_active Abandoned
- 2001-06-13 JP JP2002511315A patent/JP3990629B2/ja not_active Expired - Fee Related
- 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 US US10/311,567 patent/US7162251B2/en not_active Expired - Fee Related
- 2001-06-13 ES ES01955212T patent/ES2236274T3/es not_active Expired - Lifetime
- 2001-06-13 AT AT01955212T patent/ATE290245T1/de active
- 2001-06-13 WO PCT/DE2001/002217 patent/WO2001097195A1/de not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| See references of WO0197195A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| US20030153331A1 (en) | 2003-08-14 |
| AU2001277463A1 (en) | 2001-12-24 |
| ATE290245T1 (de) | 2005-03-15 |
| JP3990629B2 (ja) | 2007-10-17 |
| DE10029115A1 (de) | 2001-12-20 |
| JP2004503886A (ja) | 2004-02-05 |
| ES2236274T3 (es) | 2005-07-16 |
| EP1295273B1 (de) | 2005-03-02 |
| WO2001097195A1 (de) | 2001-12-20 |
| DE50105478D1 (de) | 2005-04-07 |
| US7162251B2 (en) | 2007-01-09 |
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