CA2431868A1 - Yard tracking system - Google Patents
Yard tracking system Download PDFInfo
- Publication number
- CA2431868A1 CA2431868A1 CA002431868A CA2431868A CA2431868A1 CA 2431868 A1 CA2431868 A1 CA 2431868A1 CA 002431868 A CA002431868 A CA 002431868A CA 2431868 A CA2431868 A CA 2431868A CA 2431868 A1 CA2431868 A1 CA 2431868A1
- Authority
- CA
- Canada
- Prior art keywords
- rolling stock
- aei
- piece
- accordance
- tracking
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L17/00—Switching systems for classification yards
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61B—RAILWAY SYSTEMS; EQUIPMENT THEREFOR NOT OTHERWISE PROVIDED FOR
- B61B1/00—General arrangement of stations, platforms, or sidings; Railway networks; Rail vehicle marshalling systems
- B61B1/005—Rail vehicle marshalling systems; Rail freight terminals
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Train Traffic Observation, Control, And Security (AREA)
- Image Analysis (AREA)
Abstract
A method for identifying and determining the position of rolling stock within a railyard using a system that includes an AEI reader, a plurality of elevated electronic imaging devices and a tracking computer. The rolling stock includes a plurality of railcars and a plurality of locomotives. The method includes recording an identification pattern for each piece of rolling stock as each piece enters the railyard, compiling tracking data of the rolling stock as the rolling stock moves within the railyard using the respective identification patterns, and mapping the position of each piece of rolling stock as the rolling stock moves within the railyard.
Claims (40)
1. A method for identifying and determining a position of rolling stock within a railyard using a system that includes an AEI reader, a plurality of elevated electronic imaging devices and a tracking computer, the rolling stock including a plurality of railcars and a plurality of locomotives, said method comprising:
recording an identification pattern for each piece of rolling stock as each piece enters the railyard;
compiling tracking data of the rolling stock as the rolling stock moves within the railyard using the respective identification patterns; and mapping the position of each piece of rolling stock as the rolling stock moves within the railyard.
recording an identification pattern for each piece of rolling stock as each piece enters the railyard;
compiling tracking data of the rolling stock as the rolling stock moves within the railyard using the respective identification patterns; and mapping the position of each piece of rolling stock as the rolling stock moves within the railyard.
2. A method in accordance with Claim 1 wherein an AEI tag is coupled to each piece of rolling stock, recording an identifier comprising:
positioning at least one of the elevated electronic imaging devices such that rolling stock may be viewed with the at least one elevated electronic imaging device as the rolling stock enters the railyard; and collecting data from each AEI tag using the AEI reader as each piece of rolling stock enters the railyard.
positioning at least one of the elevated electronic imaging devices such that rolling stock may be viewed with the at least one elevated electronic imaging device as the rolling stock enters the railyard; and collecting data from each AEI tag using the AEI reader as each piece of rolling stock enters the railyard.
3. A method in accordance with Claim 2 further comprising:
processing AEI data for each piece of rolling stock using an AEI
computer; and capturing a video image of each piece of rolling stock as the AEI data from each AEI tag is collected.
processing AEI data for each piece of rolling stock using an AEI
computer; and capturing a video image of each piece of rolling stock as the AEI data from each AEI tag is collected.
4. A method in accordance with Claim 3 wherein the tracking computer includes a processor and an electronic storage device, the tracking computer connected to a display and a dispatcher interface, said method further comprising:
transmitting each video image from the at least one electronic imaging device to the tracking computer; and communicating the processed AEI data for each piece of rolling stock from the AEI computer to the tracking computer.
transmitting each video image from the at least one electronic imaging device to the tracking computer; and communicating the processed AEI data for each piece of rolling stock from the AEI computer to the tracking computer.
5. A method in accordance with Claim 4 further comprising:
correlating the AEI data for each piece of rolling stock with the video image that was captured using the tracking computer; and storing the master video image, the AEI data, and the correlation data for each piece of rolling stock in the electronic storage device.
correlating the AEI data for each piece of rolling stock with the video image that was captured using the tracking computer; and storing the master video image, the AEI data, and the correlation data for each piece of rolling stock in the electronic storage device.
6. A method .in accordance with Claim 1 wherein compiling tracking data comprises:
positioning elevated electronic imaging devices at a plurality of selected locations within the railyard;
capturing a video image of each piece of rolling stock throughout the railyard using the elevated electronic imaging devices, each of the elevated electronic imaging devices capturing the video images of the rolling stock; and repeating the capturing of video images at a specific duty cycle.
positioning elevated electronic imaging devices at a plurality of selected locations within the railyard;
capturing a video image of each piece of rolling stock throughout the railyard using the elevated electronic imaging devices, each of the elevated electronic imaging devices capturing the video images of the rolling stock; and repeating the capturing of video images at a specific duty cycle.
7. A method in accordance with Claim 6 wherein a pattern recognition and tracking algorithm is stored on the electronic storage device and executable by the processor, said method further comprising:
communicating video images from the elevated electronic imaging devices to the tracking computer each time a video image is captured; and interpreting the secondary video images with the pattern recognition and tracking algorithm.
communicating video images from the elevated electronic imaging devices to the tracking computer each time a video image is captured; and interpreting the secondary video images with the pattern recognition and tracking algorithm.
8. A method in accordance with Claim 7 further comprising:
correlating the interpreted video images to video images stored within the computer; and identifying each piece of rolling stock using the correlations.
correlating the interpreted video images to video images stored within the computer; and identifying each piece of rolling stock using the correlations.
9. A method in accordance with Claim 8 further comprising:
determining the location of each piece of identified rolling stock utilizing the recognition and tracking algorithm each time a piece of rolling stock is identified; and storing the location of each piece of rolling stock in the electronic storage device each time the location is determined.
determining the location of each piece of identified rolling stock utilizing the recognition and tracking algorithm each time a piece of rolling stock is identified; and storing the location of each piece of rolling stock in the electronic storage device each time the location is determined.
10. A method in accordance with Claim 1 wherein a mapping program is stored on the electronic storage device and executed by the processor, mapping the position of the rolling stock comprises:
computing mapping coordinates of each piece of rolling stock using the mapping program each time the location is determined; and graphically displaying the location of each piece of rolling stock on the display each time the mapping coordinates are computed.
computing mapping coordinates of each piece of rolling stock using the mapping program each time the location is determined; and graphically displaying the location of each piece of rolling stock on the display each time the mapping coordinates are computed.
11. A system for identifying and determining a position of rolling stock within a railyard comprising an AEI reader, an AEI computer, a plurality of elevated electronic imaging devices and a tracking computer, the rolling stock including a plurality of railcars and a plurality of locomotives, said system configured to:
record an identifier unique to each piece of rolling stock as each piece of rolling stock enters the railyard;
compile tracking data of the rolling stock as the rolling stock moves within the railyard using respective identification patterns; and map the position of each piece of rolling stock as the rolling stock moves within the railyard.
record an identifier unique to each piece of rolling stock as each piece of rolling stock enters the railyard;
compile tracking data of the rolling stock as the rolling stock moves within the railyard using respective identification patterns; and map the position of each piece of rolling stock as the rolling stock moves within the railyard.
12. A system in accordance with Claim 11 wherein an AEI tag is coupled to each piece of rolling stock to record an identifier, said system further configured to:
position at least one of said elevated electronic imaging devices such that the rolling stock may be viewed with said at least one electronic imaging device as the rolling stock enters the railyard; and collect AEI data from each said AEI tag using said AEI reader as each piece.of rolling stock enters the railyard.
position at least one of said elevated electronic imaging devices such that the rolling stock may be viewed with said at least one electronic imaging device as the rolling stock enters the railyard; and collect AEI data from each said AEI tag using said AEI reader as each piece.of rolling stock enters the railyard.
13. A system in accordance with Claim 12 wherein said system further configured to:
process AEI data for each piece of rolling stock using said AEI
computer; and capture a video image of each piece of rolling stock while collecting AEI data from each AEI tag.
process AEI data for each piece of rolling stock using said AEI
computer; and capture a video image of each piece of rolling stock while collecting AEI data from each AEI tag.
14. A system in accordance with Claim 13 wherein the tracking computer comprises a processor and an electronic storage device, said tracking computer connected to a display and a dispatcher interface, said tracking computer configured to record an identification pattern, said system further configured to:
communicate said video image from said at least one electronic imaging device positioned to view rolling stock as the rolling stock enters the railyard to said tracking computer; and communicate said processed AEI data for each piece of rolling stock from said AEI computer to said tracking computer.
communicate said video image from said at least one electronic imaging device positioned to view rolling stock as the rolling stock enters the railyard to said tracking computer; and communicate said processed AEI data for each piece of rolling stock from said AEI computer to said tracking computer.
15. A system in accordance with Claim 14 wherein said system further configured to:
correlate said AEI data for each piece of rolling stock with said video image captured using said tracking computer; and store the video image, the AEI data, and the correlation data for each piece of rolling stock in said electronic storage device.
correlate said AEI data for each piece of rolling stock with said video image captured using said tracking computer; and store the video image, the AEI data, and the correlation data for each piece of rolling stock in said electronic storage device.
16. A system in accordance with Claim 11 wherein to compile tracking data, said system further configured to:
capture a video image of each piece of rolling stock throughout the railyard using said elevated electronic imaging device, each said elevated electronic imaging device capturing video images of the rolling stock within the view of the respective said elevated electronic imaging device; and repeat capturing of said video images at a specific duty cycle.
capture a video image of each piece of rolling stock throughout the railyard using said elevated electronic imaging device, each said elevated electronic imaging device capturing video images of the rolling stock within the view of the respective said elevated electronic imaging device; and repeat capturing of said video images at a specific duty cycle.
17. A system in accordance with Claim 16 wherein a pattern recognition and tracking algorithm is stored on said electronic storage device and executable by said processor, said system further configured to:
communicate said video images from said electronic imaging devices to said tracking computer each time said video image is captured; and interpret said video images using said pattern recognition and tracking algorithm each time said video images are communicated to said tracking computer.
communicate said video images from said electronic imaging devices to said tracking computer each time said video image is captured; and interpret said video images using said pattern recognition and tracking algorithm each time said video images are communicated to said tracking computer.
18. A system in accordance with Claim 17 wherein said system further configured to:
compare said interpreted video images to said stored video images each time said video images are interpreted; and identify each piece of rolling stock using said stored correlations.
compare said interpreted video images to said stored video images each time said video images are interpreted; and identify each piece of rolling stock using said stored correlations.
19. A system in accordance with Claim 18 wherein said system further configured to:
determine a location of each piece of identified rolling stock utilizing the recognition and tracking algorithm each time a piece of rolling stock is identified;
and store the location of each piece of rolling stock in said electronic storage device each time the location is determined.
determine a location of each piece of identified rolling stock utilizing the recognition and tracking algorithm each time a piece of rolling stock is identified;
and store the location of each piece of rolling stock in said electronic storage device each time the location is determined.
20. A system in accordance with Claim 11 wherein a mapping program is stored on said electronic storage device and executed by said processor, said system further configured to:
compute mapping coordinates of each piece of rolling stock using said mapping program each time the location is determined; and display graphically the location of each piece of rolling stock on said display each time the mapping coordinates are computed.
compute mapping coordinates of each piece of rolling stock using said mapping program each time the location is determined; and display graphically the location of each piece of rolling stock on said display each time the mapping coordinates are computed.
21. A system for identifying and determining a position of movable components within a yard, said system comprises an AEI reader, an AEI
computer, a plurality of elevated electronic imaging devices and a tracking computer, said system configured to:
record an identifier unique to an AEI tag attached to a respective movable component as each tagged component enters the yard;
compile tracking data of the tagged movable components as the tagged components move within the yard using identification patterns; and map the position of each tagged movable component as the tagged component moves within the yard.
computer, a plurality of elevated electronic imaging devices and a tracking computer, said system configured to:
record an identifier unique to an AEI tag attached to a respective movable component as each tagged component enters the yard;
compile tracking data of the tagged movable components as the tagged components move within the yard using identification patterns; and map the position of each tagged movable component as the tagged component moves within the yard.
22. A system in accordance with Claim 21 wherein said system further configured to:
position at least one of said elevated electronic imaging devices such that the tagged movable components may be viewed with the at least one electronic imaging device as the tagged components enter the yard; and collect AEI data from each said AEI tag using said AEI reader as each tagged movable component enters the yard.
position at least one of said elevated electronic imaging devices such that the tagged movable components may be viewed with the at least one electronic imaging device as the tagged components enter the yard; and collect AEI data from each said AEI tag using said AEI reader as each tagged movable component enters the yard.
23. A system in accordance with Claim 22 wherein said system further configured to:
process AEI data for each tagged movable component using said AEI
computer; and capture a video image of each tagged movable component while collecting AEI data from each AEI tag.
process AEI data for each tagged movable component using said AEI
computer; and capture a video image of each tagged movable component while collecting AEI data from each AEI tag.
24. A system in accordance with Claim 23 wherein said tracking computer comprises a processor and an electronic storage device, said tracking computer connected to a display and a dispatcher interface, said tracking computer configured to record an identification pattern, said system further configured to:
communicate the video image from said at least one electronic imaging device positioned to view tagged movable components as the tagged movable components enter the yard to said tracking computer; and communicate the processed AEI data for each movable component from said AEI computer to said tracking computer.
communicate the video image from said at least one electronic imaging device positioned to view tagged movable components as the tagged movable components enter the yard to said tracking computer; and communicate the processed AEI data for each movable component from said AEI computer to said tracking computer.
25. A system in accordance with Claim 24 wherein said system further configured to:
correlate the AEI data for each movable component with the video image that was captured using said tracking computer; and store the video image, the AEI data, and the correlation data for each tagged movable component in said electronic storage device.
correlate the AEI data for each movable component with the video image that was captured using said tracking computer; and store the video image, the AEI data, and the correlation data for each tagged movable component in said electronic storage device.
26. A system in accordance with Claim 21 wherein said system further configured to:
capture a video image of each tagged movable component throughout the yard, at least one of said electronic imaging devices capturing video images of the movable components within view of the respective camera; and repeat capturing of the video images at a specific duty cycle.
capture a video image of each tagged movable component throughout the yard, at least one of said electronic imaging devices capturing video images of the movable components within view of the respective camera; and repeat capturing of the video images at a specific duty cycle.
27. A system in accordance with Claim 26 wherein a pattern recognition and tracking algorithm is stored on said electronic storage device and executable by said processor, said system further configured to:
communicate video images from said at least one electronic imaging device positioned at selected locations to said tracking computer each time the video image is captured; and interpret the video images using the pattern recognition and tracking algorithm each time the video images are communicated to said tracking computer.
communicate video images from said at least one electronic imaging device positioned at selected locations to said tracking computer each time the video image is captured; and interpret the video images using the pattern recognition and tracking algorithm each time the video images are communicated to said tracking computer.
28. A system in accordance with Claim 27 wherein said system further configured to:
compare the interpreted video images to stored master video images each time the video images are interpreted; and identify each movable component using the stored correlations.
compare the interpreted video images to stored master video images each time the video images are interpreted; and identify each movable component using the stored correlations.
29. A system in accordance with Claim 28 wherein to compile tracking data, said system further configured to:
determine a location of each identified tagged component utilizing the recognition and tracking algorithm each time a tagged component is identified;
and store the location of each movable component in said electronic storage device each time the location is determined.
determine a location of each identified tagged component utilizing the recognition and tracking algorithm each time a tagged component is identified;
and store the location of each movable component in said electronic storage device each time the location is determined.
30. A system in accordance with Claim 21 wherein a mapping program is stored on said electronic storage device and executed by said processor, said system configured to:
compute mapping coordinates of each movable component using said mapping program each time the location is determined; and display graphically the location of each movable component on said display each time the mapping coordinates are computed.
compute mapping coordinates of each movable component using said mapping program each time the location is determined; and display graphically the location of each movable component on said display each time the mapping coordinates are computed.
31. A method for tracking rolling stock within a railyard using a system that includes an AEI reader, a plurality of elevated electronic imaging devices, and a tracking computer, the rolling stock including a plurality of railcars and a plurality of locomotives, said method comprising:
uniquely identifying each piece of rolling stock as it enters the railyard using AEI readers at all yard entrances and exits;
correlating each piece of the identified rolling stock with an image using an elevated electronic imaging device;
tracking incremental movements of the images using tracking algorithms in the tracking computer while maintaining the correlation with the unique rolling stock identifier; and performing handoff from one elevated electronic imaging device to another electronic imaging device through position and shape correlation.
uniquely identifying each piece of rolling stock as it enters the railyard using AEI readers at all yard entrances and exits;
correlating each piece of the identified rolling stock with an image using an elevated electronic imaging device;
tracking incremental movements of the images using tracking algorithms in the tracking computer while maintaining the correlation with the unique rolling stock identifier; and performing handoff from one elevated electronic imaging device to another electronic imaging device through position and shape correlation.
32. A method in accordance with Claim 31 wherein the results of the tracking process are displayed on an electronic map with each piece of rolling stock identified with a unique identification number.
33. A method in accordance with Claim 31 wherein the results of the tracking process are displayed on a computer aided dispatch (CAD) system.
34. A method in accordance with Claim 31 wherein a database which uniquely maps each piece of rolling stock to a predetermined shape is used to augment the performance of the tracking algorithm.
35. A method in accordance with Claim 34 wherein groups of rolling stock with like train identifiers are displayed electronically as trains.
36. A method in accordance with Claim 34 wherein groups of rolling stock with like destination identifiers are displayed electronically as trains.
37. A method in accordance with Claim 34 wherein groups of rolling stock with like train identifiers and like destination identifiers are displayed electronically as trains.
38. A method in accordance with Claim 31 wherein auxiliary data supplied by a railyard management information system (MIS) is used to cross reference rolling stock with train identifiers.
39. A method in accordance with Claim 31 wherein auxiliary data supplied by a railyard management information system (MIS) is used to cross reference rolling stock with destination identifiers.
40. A method in accordance with Claim 31 wherein auxiliary data supplied by a railyard management information system (MIS) is used to cross reference rolling stock with train identifiers and destination identifiers.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US17397200P | 2000-12-28 | 2000-12-28 | |
| US60/258,520 | 2000-12-28 | ||
| PCT/US2001/049471 WO2002053443A1 (en) | 2000-12-28 | 2001-10-26 | Yard tracking system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2431868A1 true CA2431868A1 (en) | 2002-07-11 |
| CA2431868C CA2431868C (en) | 2012-02-07 |
Family
ID=22634280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2431868A Expired - Fee Related CA2431868C (en) | 2000-12-28 | 2001-10-26 | Yard tracking system |
Country Status (5)
| Country | Link |
|---|---|
| AU (1) | AU2002235233B2 (en) |
| CA (1) | CA2431868C (en) |
| DE (1) | DE10197107T5 (en) |
| MX (1) | MXPA03005927A (en) |
| WO (1) | WO2002053443A1 (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7457691B2 (en) | 2005-12-30 | 2008-11-25 | Canadian National Railway Company | Method and system for computing rail car switching solutions in a switchyard based on expected switching time |
| US7546185B2 (en) | 2005-12-30 | 2009-06-09 | Canadian National Railway Company | System and method for computing railcar switching solutions using an available space search logic assigning different orders of preference to classification tracks |
| US7565228B2 (en) | 2005-12-30 | 2009-07-21 | Canadian National Railway Company | System and method for computing railcar switching solutions in a switchyard using empty car substitution logic |
| US7596433B2 (en) | 2005-12-30 | 2009-09-29 | Canadian National Railway Company | System and method for computing rail car switching solutions in a switchyard with partially occupied classification track selection logic |
| US7657348B2 (en) | 2005-12-30 | 2010-02-02 | Canadian National Railway Company | System and method for computing rail car switching solutions using dynamic classification track allocation |
| US7742849B2 (en) | 2005-12-30 | 2010-06-22 | Canadian National Railway Company | System and method for computing car switching solutions in a switchyard using car ETA as a factor |
| US7742848B2 (en) | 2005-12-30 | 2010-06-22 | Canadian National Railway Company | System and method for computing rail car switching solutions in a switchyard including logic to re-switch cars for block pull time |
| US7747362B2 (en) | 2005-12-30 | 2010-06-29 | Canadian National Railway Company | System and method for computing rail car switching solutions by assessing space availability in a classification track on the basis of block pull time |
| US7751952B2 (en) | 2005-12-30 | 2010-07-06 | Canadian National Railway Company | System and method for computing rail car switching solutions in a switchyard including logic to re-switch cars for arrival rate |
| US7792616B2 (en) | 2005-12-30 | 2010-09-07 | Canadian National Railway Company | System and method for computing rail car switching solutions in a switchyard including logic to re-switch cars for block size |
| US7818101B2 (en) | 2005-12-30 | 2010-10-19 | Canadian National Railway Company | System and method for computing rail car switching solutions in a switchyard using an iterative method |
| US8055397B2 (en) | 2005-12-30 | 2011-11-08 | Canadian National Railway Company | System and method for computing rail car switching sequence in a switchyard |
| US8060263B2 (en) | 2005-12-30 | 2011-11-15 | Canadian National Railway Company | System and method for forecasting the composition of an outbound train in a switchyard |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7657349B2 (en) | 2006-10-20 | 2010-02-02 | New York Air Brake Corporation | Method of marshalling cars into a train |
| CN102745212B (en) * | 2012-07-04 | 2016-01-06 | 北京铁龙恒通车辆装备有限公司 | A kind of car inspection and maintenance shunting safety method for supervising and system |
| CN112644519B (en) * | 2021-01-08 | 2022-08-09 | 北京全路通信信号研究设计院集团有限公司 | Forward vehicle aggregation combination system and method for railway marshalling station |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3611281A (en) * | 1969-05-26 | 1971-10-05 | Thomas V Evanoff | Railroad yard information system |
| US4610206A (en) * | 1984-04-09 | 1986-09-09 | General Signal Corporation | Micro controlled classification yard |
| US5712789A (en) * | 1995-08-28 | 1998-01-27 | K&T Ltd. | Container monitoring system and method |
| US5745036A (en) * | 1996-09-12 | 1998-04-28 | Checkpoint Systems, Inc. | Electronic article security system for store which uses intelligent security tags and transaction data |
-
2001
- 2001-10-26 CA CA2431868A patent/CA2431868C/en not_active Expired - Fee Related
- 2001-10-26 MX MXPA03005927A patent/MXPA03005927A/en active IP Right Grant
- 2001-10-26 WO PCT/US2001/049471 patent/WO2002053443A1/en active Search and Examination
- 2001-10-26 AU AU2002235233A patent/AU2002235233B2/en not_active Ceased
- 2001-10-26 DE DE10197107T patent/DE10197107T5/en not_active Withdrawn
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7457691B2 (en) | 2005-12-30 | 2008-11-25 | Canadian National Railway Company | Method and system for computing rail car switching solutions in a switchyard based on expected switching time |
| US7546185B2 (en) | 2005-12-30 | 2009-06-09 | Canadian National Railway Company | System and method for computing railcar switching solutions using an available space search logic assigning different orders of preference to classification tracks |
| US7565228B2 (en) | 2005-12-30 | 2009-07-21 | Canadian National Railway Company | System and method for computing railcar switching solutions in a switchyard using empty car substitution logic |
| US7596433B2 (en) | 2005-12-30 | 2009-09-29 | Canadian National Railway Company | System and method for computing rail car switching solutions in a switchyard with partially occupied classification track selection logic |
| US7657348B2 (en) | 2005-12-30 | 2010-02-02 | Canadian National Railway Company | System and method for computing rail car switching solutions using dynamic classification track allocation |
| US7742849B2 (en) | 2005-12-30 | 2010-06-22 | Canadian National Railway Company | System and method for computing car switching solutions in a switchyard using car ETA as a factor |
| US7742848B2 (en) | 2005-12-30 | 2010-06-22 | Canadian National Railway Company | System and method for computing rail car switching solutions in a switchyard including logic to re-switch cars for block pull time |
| US7747362B2 (en) | 2005-12-30 | 2010-06-29 | Canadian National Railway Company | System and method for computing rail car switching solutions by assessing space availability in a classification track on the basis of block pull time |
| US7751952B2 (en) | 2005-12-30 | 2010-07-06 | Canadian National Railway Company | System and method for computing rail car switching solutions in a switchyard including logic to re-switch cars for arrival rate |
| US7792616B2 (en) | 2005-12-30 | 2010-09-07 | Canadian National Railway Company | System and method for computing rail car switching solutions in a switchyard including logic to re-switch cars for block size |
| US7818101B2 (en) | 2005-12-30 | 2010-10-19 | Canadian National Railway Company | System and method for computing rail car switching solutions in a switchyard using an iterative method |
| US7831342B2 (en) | 2005-12-30 | 2010-11-09 | Canadian National Railway Company | System and method for computing railcar switching solutions in a switchyard using empty car substitution logic |
| US7885736B2 (en) | 2005-12-30 | 2011-02-08 | Canadian National Railway Company | System and method for computing rail car switching solutions in a switchyard including logic to re-switch cars for block pull time |
| US7983806B2 (en) | 2005-12-30 | 2011-07-19 | Canadian National Railway Company | System and method for computing car switching solutions in a switchyard using car ETA as a factor |
| US8019497B2 (en) | 2005-12-30 | 2011-09-13 | Canadian National Railway Company | System and method for computing rail car switching solutions using dynamic classification track allocation |
| US8055397B2 (en) | 2005-12-30 | 2011-11-08 | Canadian National Railway Company | System and method for computing rail car switching sequence in a switchyard |
| US8060263B2 (en) | 2005-12-30 | 2011-11-15 | Canadian National Railway Company | System and method for forecasting the composition of an outbound train in a switchyard |
| US8239079B2 (en) | 2005-12-30 | 2012-08-07 | Canadian National Railway Company | System and method for computing rail car switching sequence in a switchyard |
| US8332086B2 (en) | 2005-12-30 | 2012-12-11 | Canadian National Railway Company | System and method for forecasting the composition of an outbound train in a switchyard |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2002235233B2 (en) | 2007-07-05 |
| WO2002053443A1 (en) | 2002-07-11 |
| DE10197107T5 (en) | 2004-04-22 |
| CA2431868C (en) | 2012-02-07 |
| MXPA03005927A (en) | 2005-10-05 |
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