Patent US6329932B1 successfully refreshed from Google Patents.
US6329932B1
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Method for determining traffic data and traffic information exchange
Assignee: Vodafone Holding GmbH
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Filing: 1998-02-10
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Granted: 2001-12-11
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Expires: 2018-02-10
Abstract
Abstract A method for determining traffic data at points of interest in a traffic system from: vehicle data which are transmitted to a center from a plurality of vehicles relating to mean speeds (which have been determined over a time interval) of in each case one vehicle; stationary detector data which are transmitted to the center by stationary detectors in each case relating to the mean speed of vehicles passing a stationary detector in a time interval, wherein vehicle speeds at a point of interest are determined in the center, with the speeds which have been transmitted as vehicle data to the center being associated with defined points in the traffic system, and with vehicle speeds being calculated at in each case one point of interest by interpolation of at least two vehicle data items, namely by interpolation of stationary detector data measured in each case at at least one point in the traffic system and/or of vehicle data associated with at least one point in the traffic system.
Inventors
- 👤 Ülrich Fastenrath
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:16
CPC Classifications
G; G08; G08G; G08G1/00; G08G1/01; G08G1/0104
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
168 words
A method for determining traffic data at points of interest in a traffic system, comprising the steps of: transmitting vehicle data to a center from a plurality of vehicles, relating to mean speeds which have been determined over a time interval of in each case one vehicle; transmitting stationary detector data to the center by stationary detectors in each case relating to mean speed of vehicles passing a stationary detector in a time interval; determining vehicle speeds at a point of interest and for a specific point in time at the center; associating the speeds which have been transmitted as vehicle data to the center with defined points in the traffic system; and calculating vehicle speeds at in each case one point of interest by interpolation of at least two vehicle data items, including interpolating at least one of stationary detector data measured in each case at at least one point in the traffic system and vehicle data associated with at least one point in the traffic system.
Claim 2
Independent Claim
168 words
A method for determining traffic data at points of interest in a traffic system, comprising the steps of: transmitting vehicle data to a center from a plurality of vehicles, relating to mean speeds which have been determined over a time interval of in each case one vehicle; transmitting stationary detector data to the center by stationary detectors in each case relating to mean speed of vehicles passing a stationary detector in a time interval; determining vehicle speeds at a point of interest and for a specific point in time at the center; associating the speeds which have been transmitted as vehicle data to the center with defined points in the traffic system; and calculating vehicle speeds at in each case one point of interest by interpolation of at least two vehicle data items, including interpolating at least one of stationary detector data measured in each case at at least one point in the traffic system and vehicle data associated with at least one point in the traffic system.
Claim 3
Dependent Claim
33 words
A method as defined in claim 1 , wherein the step of calculating speeds at points of interest includes weighting the at least one of the vehicle data and the stationary detector data.
Claim 4
Dependent Claim
42 words
A method as defined in claim 1 , including determining the speed at a point in time at a point of interest by linear interpolation of two speed values which are adjacent in terms of at least one of position and time.
Claim 5
Dependent Claim
16 words
A method as defined in claim 1 , wherein additional information is included in the interpolation.
Claim 6
Dependent Claim
46 words
A method as defined in claim 1 , including associating vehicle data by definition of the speed which in each case represents one vehicle in the vehicle data as the speed at a specific position in a road segment at which the vehicle is currently located.
Claim 7
Dependent Claim
33 words
A method as defined in claim 1 , further including associating a traffic jam indicator with points of interest in the traffic system based on the calculated vehicle speeds and measured vehicle speeds.
Claim 8
Dependent Claim
40 words
A method as defined in claim 6 , further including determining and issuing traffic information relating to traffic system segments based on a plurality of traffic jam indicators which are associated in terms of position with these traffic system segments.
Claim 9
Dependent Claim
27 words
A method as defined in claim 1 , including transmitting at least one of the vehicle data and the stationary detector data to the center by radio.
Claim 10
Dependent Claim
29 words
A method as defined in claim 1 , wherein the vehicle data relates to speeds which have been averaged over a longer time interval than the stationary detector data.
Claim 11
Dependent Claim
24 words
A method as defined in claim 1 , including averaging the vehicle data over a time interval of 10 minutes for the respective vehicle.
Claim 12
Dependent Claim
35 words
A method as defined in claim 1 , including determining stationary detector data over a time interval of 30 seconds, averaging the determined stationary detector data and then transmitting the data after the time interval.
Claim 13
Dependent Claim
188 words
A traffic information center, comprising: a computer; an input apparatus for vehicle data and stationary detector data; and a program for carrying out a method for determining traffic data at points of interest in a traffic system by transmitting vehicle data to a center from a plurality of vehicles, relating to mean speeds which have been determined over a time interval of in each case one vehicle; transmitting stationary detector data to the center by stationary detectors in each case relating to mean speed of vehicles passing a stationary detector in a time interval; determining vehicle speeds at a point of interest and for a specific point in time at the center; associating the speeds which have been transmitted as vehicle data to the center with defined points in the traffic system; and calculating vehicle speeds at in each case one point of interest by interpolation of at least two vehicle data items, including interpolating at least one of stationary detector data measured in each case at at least one point in the traffic system and vehicle data associated with at least one point in the traffic system.
Claim 14
Dependent Claim
188 words
A traffic information center, comprising: a computer; an input apparatus for vehicle data and stationary detector data; and a program for carrying out a method for determining traffic data at points of interest in a traffic system by transmitting vehicle data to a center from a plurality of vehicles, relating to mean speeds which have been determined over a time interval of in each case one vehicle; transmitting stationary detector data to the center by stationary detectors in each case relating to mean speed of vehicles passing a stationary detector in a time interval; determining vehicle speeds at a point of interest and for a specific point in time at the center; associating the speeds which have been transmitted as vehicle data to the center with defined points in the traffic system; and calculating vehicle speeds at in each case one point of interest by interpolation of at least two vehicle data items, including interpolating at least one of stationary detector data measured in each case at at least one point in the traffic system and vehicle data associated with at least one point in the traffic system.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2004-12-10 | 2005-06-11 | 2005-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-12-10 | 2009-06-11 | 2009-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-12-10 | 2013-06-11 | 2013-12-11 | $7700.00 | Window Closed / Lapsed |