B61K9/10

Image-based monitoring and detection of track/rail faults

A system and method for monitoring a track and/or rail employs one or more distance measuring imagers mounted to a railcar and directed to image the track and/or rails wherein the images are geo-tagged with location data. Geo-tagged distance measurements are processed to determine at least track gauge and/or at least rail fastener integrity. The system and method may also determine other track and/or rail integrity issues including, e.g., rail profile, rail alignment, center point dip, cross level, rail cant, wheel wear, wheel integrity, rail wear, rail defects, and/or rail temperature. The system and method may also determine when inspection and/or maintenance of the track is indicated, and provide selected records of where and/or when such inspection and/or maintenance is indicated.

Image-based monitoring and detection of track/rail faults

A system and method for monitoring a track and/or rail employs one or more distance measuring imagers mounted to a railcar and directed to image the track and/or rails wherein the images are geo-tagged with location data. Geo-tagged distance measurements are processed to determine at least track gauge and/or at least rail fastener integrity. The system and method may also determine other track and/or rail integrity issues including, e.g., rail profile, rail alignment, center point dip, cross level, rail cant, wheel wear, wheel integrity, rail wear, rail defects, and/or rail temperature. The system and method may also determine when inspection and/or maintenance of the track is indicated, and provide selected records of where and/or when such inspection and/or maintenance is indicated.

LOW MAINTENANCE RAIL MONITORING PROBE

An ultrasonic probe for non-destructive testing of a rail, said probe comprising a housing; an insert comprising an ultrasonic transducer and a polycarbonate shoe having a face for contacting a rail; and a compressed spring for exerting a downward force on said insert; the system further comprising a plate with a restraining flange around an aperture to prevent the polycarbonate shoe from extending more than a preset fixed amount through the aperture.

Vehicle control based on communication with route examining system

A system includes a route examining system and an off-board failsafe controller. The route examining system is configured to examine a route on which a first vehicle system is moving and to generate an inspection signal based on the route examination. The inspection signal indicates a status of a segment of the route as damaged or undamaged. The off-board failsafe controller is configured to receive the inspection signal from the route examining system. Responsive to a lack of receipt of the inspection signal within a designated time period which indicates communication loss with the route examining system, the failsafe controller is configured to generate a warning signal for communication to a second vehicle system. The warning signal is generated to direct the second vehicle system to (i) avoid traveling over the route segment or (ii) travel over the route segment or another route segment at a reduced speed.

Vehicle control based on communication with route examining system

A system includes a route examining system and an off-board failsafe controller. The route examining system is configured to examine a route on which a first vehicle system is moving and to generate an inspection signal based on the route examination. The inspection signal indicates a status of a segment of the route as damaged or undamaged. The off-board failsafe controller is configured to receive the inspection signal from the route examining system. Responsive to a lack of receipt of the inspection signal within a designated time period which indicates communication loss with the route examining system, the failsafe controller is configured to generate a warning signal for communication to a second vehicle system. The warning signal is generated to direct the second vehicle system to (i) avoid traveling over the route segment or (ii) travel over the route segment or another route segment at a reduced speed.

REAL-TIME RAIL WEAR AND DEFECT MONITORING SYSTEM EMPLOYING DISTANCE MEASURING DEVICES
20220073113 · 2022-03-10 ·

A system and method for detecting and measuring rail and/or track defects may comprise: an array of time-of-flight distance measuring sensors measuring distance to the rail head; wherein the distance measuring sensors are synchronized and the dimensional data therefrom is geo-tagged. A memory stores geo-tagged distance measurement data. Distance measurement data is processed to determine the dimensional data of the rail head including at least the width and the height thereof, for detecting rail wear and rail defects. Rail wear, surface defects, rail structural defects, rail fractures and cracks, and/or a gap in a rail, can be measured and detected.

METHOD AND SYSTEM FOR PREDICTING WEAR IN A RAIL SYSTEM
20210406420 · 2021-12-30 ·

A system and method is disclosed for predicting and comparing wear scenarios in a rail system. The method can include generating and running a contact model of the interaction between a rail and a train car to produce a simulated loading on the rail for a predetermined time period; generating and running a wear model based on the material properties and/or friction modifier properties of the rail using the simulated loading to produce a simulated wear profile of the rail for the predetermined time period; obtaining a grinding profile to be performed on the rail during the predetermined time period; and generating an updated rail profile by modifying the rail profile by the simulated wear profile and the grinding profile. The method can predict and compare crack growth over time, and provide a financial model and comparison of costs and benefits for different maintenance protocols for the rail system.

METHOD AND SYSTEM FOR PREDICTING WEAR AND CRACK GROWTH IN A RAIL SYSTEM
20210406429 · 2021-12-30 ·

A system and method is disclosed for predicting and comparing wear scenarios in a rail system. The method can include generating and running a contact model of the interaction between a rail and a train car to produce a simulated loading on the rail for a predetermined time period; generating and running a wear model based on the material properties and/or friction modifier properties of the rail using the simulated loading to produce a simulated wear profile of the rail for the predetermined time period; obtaining a grinding profile to be performed on the rail during the predetermined time period; and generating an updated rail profile by modifying the rail profile by the simulated wear profile and the grinding profile. The method can predict and compare crack growth over time, and provide a financial model and comparison of costs and benefits for different maintenance protocols for the rail system.

METHOD AND SYSTEM FOR PREDICTING WEAR AND CRACK GROWTH IN A RAIL SYSTEM
20210406429 · 2021-12-30 ·

A system and method is disclosed for predicting and comparing wear scenarios in a rail system. The method can include generating and running a contact model of the interaction between a rail and a train car to produce a simulated loading on the rail for a predetermined time period; generating and running a wear model based on the material properties and/or friction modifier properties of the rail using the simulated loading to produce a simulated wear profile of the rail for the predetermined time period; obtaining a grinding profile to be performed on the rail during the predetermined time period; and generating an updated rail profile by modifying the rail profile by the simulated wear profile and the grinding profile. The method can predict and compare crack growth over time, and provide a financial model and comparison of costs and benefits for different maintenance protocols for the rail system.

SYSTEMS AND METHODS FOR VISUALIZING AND ANALYZING A RAIL SURFACE
20210229714 · 2021-07-29 ·

A system for analyzing a railroad track comprises a transport device, a camera coupled to the transport device, an electronic display device, a memory device, and one or more processors. The camera is disposed adjacent to a rail of the railroad track and generates image data reproducible as one or more images of at least a portion of a surface of the rail. The processors can produce an image of the rail surface, which includes a plurality of elongated portions. The image is analyzed to identify any defects that exist within each elongated portion of the rail surface. The processors determine a value of a metric for each elongated portion of the rail surface. The metric is associated with the identified defects. The electronic display device displays a graph indicative of the metric for each elongated portion, the image of the rail surface, or both.