EP0943137B1 - Verfahren zur übertragung von ortsdaten und messdaten von einem endgerät, insbesondere telematikendgerät an eine verkehrszentrale - Google Patents
Verfahren zur übertragung von ortsdaten und messdaten von einem endgerät, insbesondere telematikendgerät an eine verkehrszentrale Download PDFInfo
- Publication number
- EP0943137B1 EP0943137B1 EP97952724A EP97952724A EP0943137B1 EP 0943137 B1 EP0943137 B1 EP 0943137B1 EP 97952724 A EP97952724 A EP 97952724A EP 97952724 A EP97952724 A EP 97952724A EP 0943137 B1 EP0943137 B1 EP 0943137B1
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- EP
- European Patent Office
- Prior art keywords
- data
- terminal
- location
- time
- measurement data
- 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
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Classifications
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- 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
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- 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
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/123—Traffic control systems for road vehicles indicating the position of vehicles, e.g. scheduled vehicles; Managing passenger vehicles circulating according to a fixed timetable, e.g. buses, trains, trams
- G08G1/127—Traffic control systems for road vehicles indicating the position of vehicles, e.g. scheduled vehicles; Managing passenger vehicles circulating according to a fixed timetable, e.g. buses, trains, trams to a central station ; Indicators in a central station
Definitions
- the invention relates to a method for transmitting location data and measurement data from a terminal, in particular a telematics terminal, to a traffic control center.
- FCD floating car data
- FCD floating car data
- EP 0 715 288 A1 discloses the compression of a vehicle to a control center to be transmitted, the operating state and / or the surroundings of the vehicle relevant vehicle data by defining predetermined classes to be transmitted of vehicle data.
- the object of the present invention is simple, inexpensive and efficient Reduction of telecommunication costs in the transmission of data from a terminal to a traffic center.
- the task is through the objects of independent claims.
- the invention leads to a reduction in the telecommunications costs incurred.
- the location of the terminal in each case in a traffic network implicit location data and properties of the transport network at a point in time measurement data implicit at a location and / or at a point in time transferred from each other.
- Location data on the one hand and on the other hand Measurement data before transmission to location data records and measurement data records can be summarized, the measurement date or local date or several measurement data or location data at different locations or times contain.
- Properties of the traffic network implied by measurement data in one place and / or time can in particular be data relating to a traffic jam and / or Travel time and / or a possible driving speed and / or a temperature and / or precipitation at a place and / or the time of a place (one Vehicle) in the traffic network.
- the location can be determined by a specific one point-like location or by one, for example, by several points specified area (i.e. a section of the transport network) become.
- the time, e.g. properties of the Transport network can relate to one point in time or by one Time range in the form of several points in time.
- Data records with measurement data can use a reference date of a specified type to assign the measurement data in the Central to a position in, for example, a digital map of the transport network in the traffic center included; Such referencing can affect the location of the traffic network and / or refer to the point in time at which the measurement data based on their measurement.
- a terminal according to the invention can in particular be a telematics terminal for a vehicle, which is used to detect Traffic data and / or for receiving traffic data from a traffic control center can be trained.
- the method according to the invention enables optimal utilization more expensive and possibly also more limited Telecommunication times in the transmission from one terminal to one Traffic Center. Due to the independent compression or transmission of data records with only location data and of data records with measurement data becomes the Total amount of data transferred reduced. Moreover, an adaptation to local ones Requirements possible: For example, on a straight highway section without Branches or driveways a transmission of location data only in relatively large Time intervals or local distances make sense, so that possibly more measurement data (zu Speeds, traffic jams, black ice, etc.) are transmitted as location data.
- a transmission of location data in small time intervals and / or local distances may be appropriate as a vehicle has a relatively large number of turning options, which allow complete detection of the route of the vehicle in the city require a relatively frequent location data transmission, so that more location data than measurement data may have to be transmitted here. however can individual data records at times, at which location data and measurement data for Transmission occur, contain location data and measurement data.
- the length of a data record with only location data and / or one is expedient Variable data record with measurement data.
- the location or time referencing of Data records on location data and data records on measurement data can differ his. Referencing can in particular be a place or time or a Include location area or time area.
- the transfer is conveniently carried out by Mobile.
- the transmission of the data records from the terminal to is particularly advantageous Traffic center as a short message (e.g. GSM-SMS), which is a high degree of universality and automatic further processing allowed in the traffic control center.
- GSM-SMS short message
- the transmission of a location data record can take place after a certain Time interval and / or when another event occurs. So can location data is also transmitted, for example, when a vehicle is in which is a terminal, a predeterminable location (from a variety of predeterminable locations), for example, a certain motorway junction happens. Passing a certain place can happen due to a digital Map in the terminal and / or based on that acquired by GPS or the like Position of the terminal.
- Transfer of location data from the terminal to the traffic center makes sense if that Vehicle in which the terminal is located, a certain distance has passed through or one (by a steering wheel lock and / or by a continued location detection in the terminal detectable) change of direction occurred because especially in this case, the transmission of a new location data record for determination the path of the terminal is important for the traffic control center.
- the method according to the invention can be in a terminal and / or Traffic center be implemented.
- the vehicle 1 shows a vehicle 1 with a terminal 2 according to the invention, which Location data (GPS 13), the vehicle speed measured by the vehicle 1 v and distance covered s, the outside temperature T (at vehicle 1) and the time t (through a digital clock etc. in the terminal or vehicle).
- the vehicle 1 is moving in a transport network shown here in extracts with i.a. an A8 motorway as well as federal highways B300, B17 with consecutive passage in time (t) its vehicle locations x1 (t1), x2 (t2), x3 (t3), x4 (t4), x5 (t5) at times t1 to t5. From terminal 2, locations x1 to x5 etc.
- the transmission 7, 8, 9 of Location data or 10 of measurement data from the terminal 2 to the control center 4 takes place by radio, here by mobile radio (antenna 18 of the terminal 2, antenna 6 of the traffic center 4).
- a digital data format namely a, is used for transmission 7, 8, 9, 10 Cellular short message format (GSM-SMS) used.
- Data in the terminal 2 can be used both for a data record with location data as well can be used for a data record with measurement data. This can be especially for Referencing of location data and / or reference data used be valid.
- Referencing data can be the time and / or the location, which location data and / or refer to measured data.
- a location can be used as a location point or as Local area (x1, x2) can be specified; a time can be as time 11 or Period t1, t5 can be shown.
- the referencing of location data and measurement data serves to enable the assignment of location data x1 to x5 and measurement data v1 .. v5, T1 (t1) etc. in the traffic center 4.
- Data is thus assigned to one or both of two data containers.
- On Data container is implicit for the location of the end device at different times Location data provided; a second container is for other measurement data of the Terminal implicit measurement data, in particular speeds, temperatures, Travel times etc. provided.
- Location data and / or measurement data may possibly be in the terminal 2 before the transmission (7 to 10) to be processed further.
- a location of interest specified in the terminal can in particular be the start y1 of an A8 motorway or the location of a branch y4 of a B300 federal highway from an A8 motorway or the like.
- a terminal 2 initiates a transmission if the direction of travel of the terminal 2 or of the vehicle 1 changes;
- the change in direction of travel can be due to continuous evaluations of GPS data 3 on the end device side and / or by a steering wheel lock of the extent predefined at the expected speed on the A8 motorway, with a digital map in the end device 2 possibly being used for this purpose to check whether here there is a curve on the road A8 traveled by the terminal 2 of the time or / and whether there is a possibility of departure, Autobahn service station etc. is available.
- the vehicle is not caused to indicate its location position for any other reason, it is also possible to arrange for transmission after certain time and / or location intervals.
- the most likely path of a terminal 2 between two of the control center 4 known Points x1, x5 can be determined on the basis of roads running between them.
- different spatial and / or temporal Interpolation procedure with the data transmitted to the control center x1 (t1), x4 (t4), x5 (t5) be performed.
- a data record with measurement data can be triggered in the terminal 2 different specifications can be implemented alternatively or side by side. For example, travel times can be transferred if between two predetermined points y1, y4 the actual travel time of the terminal t4 - t1 a predetermined value stored in the terminal 2.
- a Transmission from the terminal to the control center can be triggered when the Speed of terminal 2, possibly depending on the vehicle 1 type, below or above one of possibly several threshold values specified in the terminal 2 lies.
- a transmission can also be carried out at a predetermined temperature, for example the freezing point or a temperature above the freezing point, to be triggered.
- control center 4 there is an assignment of data set detected by the terminal 2 14 transmitted measurement data (speeds, travel times, temperatures, etc.) Positions in the digital map 15 in the control center 4. If in a data record 14 with Measurement data for each measurement date, the location (GPS 3) detected by the terminal 2 x1 to x5 etc. is also specified and transmitted, is a direct assignment in the control center 4 Positions in the map 15 possible. Furthermore, an assignment based on individual measured data transmitted times taking into account the route, i.e. locations x1, x4, x5 of vehicle 1 possible. This enables measurement data to be determined at specific locations x1 to x5 are assigned to the digital map 15 on the route of the vehicle 1.
- measurement data speeds, travel times, temperatures, etc.
- a measurement data record 14 in the control center 4 for assignment or for Check the assignment to positions in the digital map 15 with that of one Vehicle 1 covered distance x1, x4, x5 are compared, it is appropriate if one for each location data record 11, 12, 13 and for measurement data records 14 Vehicle identification is transmitted so as to assign the measurement data sets Enable location data records in the control center 4 for a special vehicle 1; the Identification can, for example, in a mobile phone number (5) of the terminal or a virtual number.
- Track or profile support points have the attributes 1 specified in the table below.
- Attributes of guideway and driving profile support points Stützatellentyp attribute contraction explanation PR Latitude ⁇ latitude Longitude ⁇ longitude Time stamp T absolute time Attributes of guideway and driving profile support points Support Type attribute contraction explanation SR Distance s Distance from the (temporal) end of the route against the direction of travel Time stamp T absolute time for the beginning of the section in the direction of travel (arrival time) Spatial Extension .DELTA.s spatial expansion of the section on the route Temporal extension .DELTA.T temporal extension of the section Section data item F profile date related to the section
- the two sequences PRH, SRH are indexed in chronological descending order with respect to the time stamp attribute of their sequence elements PR i , SR j T (PR i + 1 ) ⁇ T (PR i ) T (SR j + 1 ) ⁇ T (SR j ).
- Figure 1 Illustration of the reconstruction problem
- the distance s of the path points from the end of the route along the route opposite to the direction of travel acts as the path parameter on the original route.
- the individual driving profile sections characterize the driving profile on the basis of the mean value 1 F j of the profile measured values ⁇ F (s)
- a reconstruction that is to say a solution to the reconstruction problem, is understood to mean a sequence of route elements of the predefined representation of the road network which best map the route described by the PRH and the driving profile described by the SRH to the road network.
- Track elements that are part of a reconstruction have values for the following attributes.
- Attributes of a route element Type attribute contraction explanation static Latitude starting position ⁇ a latitude Longitude starting position ⁇ a longitude Latitude end position ⁇ e latitude Longitude end position ⁇ e longitude Length L length dynamic Time stamp T absolute time for the starting position (arrival time) Travel time TT Travel time on the route element Section data item F profile date related to the route element
- the static attributes come from the network description (where question); the dynamic attributes are used to establish a time reference (when question) and to assign profile data (how question) for the route elements.
- reconstruction relations This section defines some general relations that form the basis for solving the reconstruction problem (reconstruction relations).
- the aim is to express the dynamic attributes of the sequence elements SE k ⁇ R of the reconstruction as values of suitably connected reconstruction relations.
- the time interpolation map T (s) represents a continuous interpolation with respect to all discrete time information from the PRH and SRH, ie each point s ⁇ [0, Max (L W , L P )] on the original route is an approximation T (s) for assigned the point in time at which the floating car passed the point.
- Designated (t l ) l 1 ... (N + M) .
- T (s) depends on the model.
- the profile interpolation F (s) represents a continuous interpolation with respect to the discrete driving profile data ⁇ F (SR j )
- j 1 ... M ⁇ , ie each point s ⁇ [0, L P ] of the original route is an approximation F (s) assigned for the value that the original driving profile has at this point.
- the specification of the projection criteria and the algorithm that establishes the projection relation for a PRH and an SRH are not the subject of this document.
- the table below shows the projection relation for the example from Figure 1.
- Projection relation for the example from Figure 1 Few index PR index Index SE Distance attribute Projected attribute 1 1 1 x 1 true 2 2 2 - false 3 2 3 - false 4 2 4 - false 5 3 5 x 5 true 6 4 5 x 6 true 7 4 6 - false
- Projection relation for the example from Figure 1 Few index PR index Index SE Distance attribute Projected attribute 8th 5 7 - false
- one projection relation P can have several elements Assign position reports and vice versa to a position report.
- ZTA contiguous partial route with starting point
- ZTA ⁇ ZTA z
- z 1 ... Z ⁇
- p z, r (PR z, r , SE z, r ) ⁇ P, that meets the following ZTA criteria:
- the sub-sequences ZTA z ⁇ ZTA are also indexed among themselves in chronologically descending order.
- the route elements of the FWR guideway reconstruction form the reconstruction of the guideway the FCDGM and represent the answer to the where question of the reconstruction problem (Localization in the narrower sense).
- the point reconstruction map S (t) maps each point on the route reconstruction FWR a point on the original route.
- the path parameter s is used to reference the points on the original route.
- the path parameter t is introduced on each section, which specifies the distance of a point on the section FWR z from the end of the section FWR z against the passage through time (see Figure 1).
- E z are to be minimized.
- the condition PRA2 represents an extreme value problem, the solution of which allows a determination of the intercept ⁇ z .
- the sizes x 1 , x 5 , x 6 are defined in Table 3.
- the section data item "Average speed" can be formed by forming quotients the length of the route element and the travel time
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Traffic Control Systems (AREA)
- Mobile Radio Communication Systems (AREA)
Description
- Fig. 1
- als einzige Figur schematisch ein sich in einem Verkehrsnetz bewegendes Fahrzeug mit einem Endgerät, welches Daten an eine Zentrale übermittelt.
Autobahnraststätte etc. vorliegt. Ferner ist, wenn das Fahrzeug nicht aus anderen Gründen zur Angabe seiner Ortsposition veranlaßt wird, überdies auch eine Veranlassung zur Übertragung nach bestimmten Zeit- und/oder Ortsintervallen möglich.
Attribute von Fahrweg- und Fahrprofilstützstellen | |||
Stützatellentyp | Attribut | Kürzel | Erläuterung |
PR | Latitude | λ | geographische Breite |
Longitude | ϕ | geographische Länge | |
Time Stamp | T | absolute Zeitangabe |
Attribute von Fahrweg- und Fahrprofilstützstellen | |||
Stützstellentyp | Attribut | Kürzel | Erläuterung |
SR | Distance | s | Abstand vom (zeitlichen) Ende des Fahrwegs entgegen der Fahrrichtung |
Time Stamp | T | absolute Zeitangabe für den Anfang des Abschnitts in Fahrrichtung (Ankunftzeit) | |
Spatial Extension | Δs | räumliche Ausdehnung des Abschnitts auf dem Fahrweg | |
Temporal Extension | ΔT | zeitliche Ausdehnung des Abschnitts | |
Section Data Item | F | auf den Abschnitt bezogenes Profildatum |
Attribute eines Streckenelementes | |||
Typ | Attribut | Kürzel | Erläuterung |
statisch | Latitude Anfangsposition | λa | geographische Breite |
Longitude Anfangsposition | ϕa | geographische Länge | |
Latitude Endposition | λe | geographische Breite | |
Longitude Endposition | ϕe | geographische Länge | |
Length | L | Länge | |
dynamisch | Time Stamp | T | absolute Zeitangabe für die Anfangsposition (Ankunftzeit) |
Travel Time | TT | Reisezeit auf dem Strecken-element | |
Section Data Item | F | auf das Streckenelement bezogenes Profildatum |
Projektionsrelation für das Beispiel aus Abbildung 1 | ||||
Paar-Index | Index PR | Index SE | Attribut Abstand | Attribut projiziert |
1 | 1 | 1 | x1 | true |
2 | 2 | 2 | - | false |
3 | 2 | 3 | - | false |
4 | 2 | 4 | - | false |
5 | 3 | 5 | x5 | true |
6 | 4 | 5 | x6 | true |
7 | 4 | 6 | - | false |
Projektionsrelation für das Beispiel aus Abbildung 1 | ||||
Paar-Index | Index PR | Index SE | Attribut Abstand | Attribut projiziert |
8 | 5 | 7 | - | false |
Claims (17)
- Verfahren zur Übertragung von von einem Endgerät (2), insbesondere von einem Telematikendgerät für ein Fahrzeug (1), erfaßten, den Ort des Endgerätes (2) in einem Verkehrsnetz zu mehreren Zeitpunkten implizierenden Ortsdaten und von weiteren Eigenschaften des Verkehrsnetzes an einem Ort, und/oder zu einer Zeit implizierenden Meßdaten an eine Verkehrszentrale (4), in Form von Datensätzen,
wobei mindestens einige der vom Endgerät (2) an die Verkehrszentrale (4) übertragenen Datensätze (11, 12, 13) nur Ortsdaten enthalten und
wobei einige der vom Endgerät an die Verkehrszentrale übertragenen Datensätze (14) Meßdaten enthalten und
wobei Ortsdaten-Datensätze und Meßdaten-Datensätze unterschiedliche Ortsund/oder Zeitreferenzierungen aufweisen,
wobei Orts- und Meßdaten voneinander in der Weise getrennt werden, dass die Orts- und Meßdaten einander zuordenbar sind,
wobei eine Referenzierung von übertragenden Datensätzen (11-14) zu Positionen in einer digitalen Karte des Verkehrsnetzes in der Zentrale (4) erfolgt. - Verfahren nach Anspruch 1,
dadurch gekennzeichnet, daß Datensätze (11 bis 13 und 14) eine unterschiedliche, insbesondere durch den Umfang der zu übertragenden Daten bestimmte Datensatzlänge aufweisen. - Verfahren nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß eine Referenzierung eines Datensatzes (11) mit nur Ortsdaten (x3) durch einen Ort (x3) oder einen Ortsbereich (x1, x5) erfolgt. - Verfahren nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß die Referenzierung eines Datensatzes (11 bis 14) durch einen Zeitpunkt (t1) und/oder eine Zeit (t1 bis t5) erfolgt. - Verfahren nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß die Übertragung per Funk, insbesondere Mobilfunk (18, 6), erfolgt. - Verfahren nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß eine Übertragung von Daten, insbesondere Meßdaten, bei Auftreten eines Ereignisses einer vorgebbaren Art ausgelöst wird. - Verfahren nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß die Übertragung eines Datensatzes, insbesondere eines Ortsdaten-Datensatzes (11 bis 13) beim Passieren eines vorgebbaren Ortes (y1; y4) durch das Endgerät (x1; x4) erfolgt. - Verfahren nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß eine Übertragung von Daten, insbesondere Ortsdaten, bei einer Richtungsänderung des Endgerätes (2), insbesondere in vorgebbarem Ausmaß oder bei Nichtvorhandensein einer Kurve in einer digitalen Karte im Endgerät am Ort der Richtungsänderung, erfolgt. - Verfahren zur Kompression von Ortsdaten und Meßdaten für die nachfolgende Übertragung nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß Ortsdaten und Meßdaten voneinander getrennt nach unterschiedlichen Kompressionsverfahren komprimiert werden. - Verfahren nach Anspruch 9,
dadurch gekennzeichnet, daß die Kompression eine Redundanzreduktion von Daten, insbesondere auf Ganglinien für Tages-, Wochen- oder Jahresverläufe, umfaßt. - Endgerät mit einem Programm zur Durchführung des Verfahrens nach einem der vorhergehenden Ansprüche, mit einem Prozessor zum Abarbeiten des Programms, mit einem Speicher für das Programm, mit einem Kommunikationsmodul (5) zum Informieren (7 bis 10) einer Verkehrszentrale (4).
- Endgerät nach Anspruch 11,
dadurch gekennzeichnet, daß es eine GPS-Positionserfassungseinrichtung (13) aufweist. - Endgerät nach Anspruch 11 oder 12,
dadurch gekennzeichnet, daß es eine digitale Karte (3) aufweist. - Endgerät (2) nach einem der Ansprüche 11 bis 13,
dadurch gekennzeichnet, daß es Sensoren oder Dateneingänge von Sensoren eines Fahrzeuges (1) aufweist, von welchen Daten zur Fahrzeuggeschwindigkeit (v) und/oder vom Fahrzeug (1) zurückgelegten Strecke (s) und/oder Position (x3) und/oder Außentemperatur und/oder Zeit (t) erfaßt werden. - Verkehrszentrale mit einem Programm zur Durchführung des Verfahrens nach einem der Ansprüche 1 bis 11, mit einem Speicher für das Programm, mit einem Prozessor zum Abarbeiten des Programms, mit einem Kommunikationsmodul (6) zum Empfang von Informationen (11 bis 14) von mindestens einem Endgerät (2) in einem Fahrzeug (1).
- Verkehrszentrale nach Anspruch 15,
dadurch gekennzeichnet, daß sie eine digitale Karte (5) eines Verkehrsnetzes aufweist. - Verkehrszentrale nach einem der Ansprüche 15 oder 16,
dadurch gekennzeichnet, daß sie einen Speicher für von Fahrzeugen (1) übertragene Datensätze (11 bis 14) aufweist.
Applications Claiming Priority (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19652419 | 1996-12-09 | ||
DE19652419 | 1996-12-09 | ||
DE19711104 | 1997-03-06 | ||
DE19711104 | 1997-03-06 | ||
DE19755875A DE19755875A1 (de) | 1996-12-09 | 1997-12-04 | Verfahren zur Übertragung von Ortsdaten und Meßdaten von einem Endgerät, insbesondere Telematikendgerät an eine Verkehrszentrale |
DE19755875 | 1997-12-04 | ||
PCT/DE1997/002909 WO1998026397A1 (de) | 1996-12-09 | 1997-12-08 | Verfahren zur übertragung von ortsdaten und messdaten von einem endgerät, insbesondere telematikendgerät an eine verkehrszentrale |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0943137A1 EP0943137A1 (de) | 1999-09-22 |
EP0943137B1 true EP0943137B1 (de) | 2003-05-02 |
Family
ID=27216937
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97952724A Expired - Lifetime EP0943137B1 (de) | 1996-12-09 | 1997-12-08 | Verfahren zur übertragung von ortsdaten und messdaten von einem endgerät, insbesondere telematikendgerät an eine verkehrszentrale |
Country Status (5)
Country | Link |
---|---|
US (1) | US6426709B1 (de) |
EP (1) | EP0943137B1 (de) |
AT (1) | ATE239285T1 (de) |
DE (2) | DE19755875A1 (de) |
WO (1) | WO1998026397A1 (de) |
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CN105825704A (zh) * | 2016-05-30 | 2016-08-03 | 安徽富煌和利时科技股份有限公司 | 一种智能公交车调度系统 |
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DE10018562C1 (de) * | 2000-04-14 | 2002-02-07 | Daimler Chrysler Ag | Verfahren zur Gewinnung von Verkehrsdaten für ein Verkehrsnetz mit verkehrsgeregelten Netzknoten durch Meldefahrzeuge |
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DE10029115A1 (de) * | 2000-06-14 | 2001-12-20 | Mannesmann Ag | Verfahren zur Erfassung von Verkehrslagedaten |
DE10032800A1 (de) * | 2000-06-28 | 2002-01-31 | Mannesmann Ag | Verfahren zur Erfassung von Verkehrslagedaten |
US6587781B2 (en) | 2000-08-28 | 2003-07-01 | Estimotion, Inc. | Method and system for modeling and processing vehicular traffic data and information and applying thereof |
DE10044889A1 (de) | 2000-09-12 | 2002-04-04 | Harman Becker Automotive Sys | Verfahren zur Bestimmung einer Fahrtroute eines Fahrzeugs |
FR2814843B1 (fr) * | 2000-09-29 | 2003-09-26 | Sfr Sa | Procede, systeme et dispositif de calcul d'informations relatives au parcours d'un trajet predetermine par un ou plusieurs vehicules |
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- 1997-12-04 DE DE19755875A patent/DE19755875A1/de not_active Withdrawn
- 1997-12-08 WO PCT/DE1997/002909 patent/WO1998026397A1/de active IP Right Grant
- 1997-12-08 US US09/319,604 patent/US6426709B1/en not_active Expired - Fee Related
- 1997-12-08 EP EP97952724A patent/EP0943137B1/de not_active Expired - Lifetime
- 1997-12-08 DE DE59709987T patent/DE59709987D1/de not_active Expired - Lifetime
- 1997-12-08 AT AT97952724T patent/ATE239285T1/de not_active IP Right Cessation
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CN1841438B (zh) * | 2005-03-30 | 2011-07-13 | 三洋电机株式会社 | 行驶时间估计装置、行驶数据中继装置及行驶时间估计系统 |
CN105825704A (zh) * | 2016-05-30 | 2016-08-03 | 安徽富煌和利时科技股份有限公司 | 一种智能公交车调度系统 |
Also Published As
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DE59709987D1 (de) | 2003-06-05 |
US6426709B1 (en) | 2002-07-30 |
EP0943137A1 (de) | 1999-09-22 |
ATE239285T1 (de) | 2003-05-15 |
DE19755875A1 (de) | 1998-06-10 |
WO1998026397A1 (de) | 1998-06-18 |
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