SYSTEM FOR MONITORING TRAIN OPERATION

• US 3,601,602 A
• Filed: 07/24/1969
• Issued: 08/24/1971
• Est. Priority Date: 07/24/1969
• Status: Expired due to Term

• Current Assignee: Willis R. Smith
• Original Assignee: Willis R. Smith
• Inventors: Smith, Willis R.
• Primary Examiner(s): BLUNK, Evon C.
• Assistant Examiner(s): Silverman, I. Kenneth
• Application Number:
  US04/844,350
• Time in Patent Office: 761 Days
• Field of Search: 246/122,123,124
• US Class Current: 246/124
• CPC Class Codes: B61L 15/0094 Recorders on the vehicle
• CPC Class Codes: B61L 25/025 Absolute localisation, e.g. providing geodetic coordinates

Abstract

Monitoring apparatus is located on each locomotive which apparatus is distinctively actuated each time that locomotive passes a track switch in the track layout. Such actuation is dependent upon whether the locomotive passes the track switch in its normal or reverse position. The elapse of time also acts on the monitoring apparatus together with the change in the direction of locomotive movement. These distinctive conditions stored in the locomotive monitoring apparatus are fed into a computer which compares the recorded locomotive movements with a standard of operation for that area of railroad and gives a written record of the actual locomotive performance. In the event the actual performance deviates substantially from a standard of performance, such difference is printed on the written record to be brought to the attention of the operator of the locomotive as well as his management. In a modified form of the invention, the conditions detected on the locomotive are transmitted to the central office in real time and are supplied to the computer for immediate processing. The computer in addition to supplying a typed record of performance also provides control of a currently updated display panel for showing the route and times of locomotive movement.

Claims

1. A system for monitoring train movement over a railroad having convention track switches comprising;

a magnetic inductor including a body of ferromagnetic material located at particular points along the track, a plurality of magnetic detectors located at spaced points on said track for distinctively detecting the magnetic inductor upon the passage of said train over the magnetic inductor, and means controlled by said magnetic detectors for making a record of the passage of said train over said magnetic inductors.

2. A system as specified in the above claim 1 wherein said magnetic inductors comprise wayside located inert iron or ferromagnetic bodies for cooperating with the train-carried magnetic detectors located on opposite sides of the train.

3. A system as specified in the above claim 2, wherein said magnetic inductors comprise:

a portion of each track switch including a single frog section, and wherein said magnetic detectors include at least one detector on each side of the train for detecting which side of the train passes over said frog section depending upon the position of the track switch.

4. A system as specified in claim 1, wherein said means controlled by said magnetic detectors includes a computer with a record of the sections of the track interconnected by said switches recorded therein to complete a record of the route travelled.

5. A system as specified in claim 1, in which an area marker is located to which said magnetic detectors respond for controlling said means to also make a record of said area.

6. A system for monitoring train movement over a railroad having track switches interconnecting various track sections, said track switches being operable to different positions to form different trackway routes, magnetic inductor means comprising a portion of the track switches including the diverging rails of said switches in either of itS positions, electromagnetic means located on the train for supplying different outputs as a train passes over said magnetic inductors in a computer located at a central office, means for controlling said computer in response to said different outputs, a miniature track diagram including display units for said sections of track, and means controlled by said computer for acting on said display units to show the sections occupied by said train.

7. A system for monitoring train movement over a railway track layout having track switches interconnecting track sections comprising, said track switches being operable to different positions to form different trackway routes, magnetic inductor means comprising inert ferromagnetic bodies including a portion of the track switches, electromagnetic means located on the train for supplying different outputs as a train passes over said switches in different positions, a motion detector on said train for supplying different outputs for train movement in opposite directions, a computer located at a central office, means controlling said computer in response to said different outputs of said electromagnetic means and said motion detector, and means controlled by said computer for making a record of the route travelled by said train.

8. A system for monitoring train operation over a railroad having sections of track interconnected by switches comprising, magnetic inductors located at particular points along the track, a magnetic detector mounted on each side of a train and having windings thereon for supplying a distinctive output each time a detector passes over a switch or a magnetic inductor, means for storing said distinctive outputs for each said switch and each said magnetic inductor, a computer, means controlled by said storing means for supplying an input to said computer for all switches and magnetic inductors passed by said magnetic detectors, and means controlled by said computer for printing the route taken by the train.

9. A system for monitoring train operation over a railroad track layout having sections of track interconnected by track switches comprising, said track switches being operable to different positions to establish different routes through the track layout for the movement of trains, area markers of the magnetic type including a body of inert ferromagnetic material located at the entrance ends of said routes, each of said area markers having a distinctive code for its area, electrical means on a train being responsive to said area markers and to distinctively identify the passage of said train over each switch in its different positions, and storage means for storing said area codes and said passage of track switches in the succession in which they occur for recording the route for each train.

10. A system for monitoring train operation over a railroad track layout having sections of track interconnected by track switches comprising, said track switches being operable to different positions to establish different routes through the track layout for the movement of a train, an area marker including a body of inert ferromagnetic material located at the entrance end of a route, said marker providing a code distinctive of that area, motion detection means on the train responsive to the movement of the train to indicate its direction, electrical means on the train responsive to the distinctive code of said area marker and to distinctively identify the passage of said train over each switch in its different positions, and storage means for storing said area codes, the direction of motion of the train and the position of each track switch for recording the necessary information to identify the route taken by the train.

11. A system as specified in claim 7 wherein a time clock is included in the combination, and said means for controlling said computer also responds to said time clock for controlling said computer each time said different outputs are effective and wheRein said means controlled by said computer makes a record of the route travelled by the train and the times the train passes said switches.

12. A system as specified in claim 8 wherein a clock is included in the combination for supplying the elapse of time to said storing means, said storing means also supplying an input to said computer for the elapse of time, and said computer also printing the time taken by the train to pass from said magnetic inductor to a switch as well as the time taken by the train to pass between any pair of the switches.

13. A system for monitoring train operation over a railway track layout having sections of track interconnected by track switches which are operable to different positions to form different trackway routes through the track layout comprising, a magnetic inductor including a body of ferromagnetic material located at the entrance of said track layout, a magnetic detector mounted on each side of a train and having windings thereon for supplying a distinctive output when said detector passes over said magnetic inductor and each time it passes over a succeeding track switch, a motion detector on said train for supplying different outputs for train movement in opposite directions, a computer at a central office with an associated time clock, means controlling said computer in response to said different outputs of said detector means and said motion detector for recording the passage of the train, said means also being responsive to said time clock for recording the time of occurrence of said different inputs and thus recording the times the train passes said magnetic inductor and the successive switches of track layout to comprise a route, and means controlled by said computer for making a printed record of the route travelled by said train and also including in the printed record the elapsed time for train movement between the successive switches.

14. A system as specified in claim 13 wherein said computer is originally set to include the standard elapsed time allotted for a train movement between each successive pair of track switches, said computer also causing the printing said standard elapsed times.

15. A system as specified in claim 14 wherein said computer includes means for comparing the train elapsed time with the standard elapsed time and advising when said train elapsed time is substantially greater than a standard elapsed time.

16. A system as specified in claim 6, wherein said display units for said track sections include units to identify trains and to give their times of arrival, and said means controlled by said computer for acting on said display units to show the identity of the train occupying corresponding sections of track and the times of arrival of said train.

17. A system as specified in claim 2 wherein said magnetic detectors are located on opposite sides of the train and said magnetic inductors include a portion of the track switches comprising the divergent rails of said switches in either of its positions for distinctive detection upon passage of the train over the switch.