Railway inspection system

• US 9,981,671 B2
• Filed: 03/01/2012
• Issued: 05/29/2018
• Est. Priority Date: 03/01/2012
• Status: Active Grant

• Current Assignee: Nordco, Inc. (Westinghouse Air Brake Technologies Corporation)
• Original Assignee: Nordco, Inc. (Westinghouse Air Brake Technologies Corporation)
• Inventors: Fraser, Randy Scott, Graham, Patrick Michael, Underwood, Paul Sanders
• Primary Examiner(s): Dalbo, Michael
• Application Number:
  US13/409,487
• Publication Number:
  US 20130231873A1
• Time in Patent Office: 2,280 Days
• Field of Search: 702 35, 702182, 702183, 702184
• CPC Class Codes: B61K 5/00 Apparatus for placing vehicles on the track; Derailers; Lifting or lowering rail vehicle axles or wheels hoisting apparatus B66
• CPC Class Codes: B61L 23/04 for monitoring the mechanical state of the route
• CPC Class Codes: B61L 23/042 Track changes detection
• CPC Class Codes: B61L 23/044 Broken rails
• CPC Class Codes: B61L 23/045 Rail wear
• CPC Class Codes: B61L 23/047 Track or rail movements
• CPC Class Codes: G01N 2291/2623 Rails; Railroads

Abstract

A railway inspection system for monitoring defects of a rail, including an inspection vehicle configured for traversing the rail, a sensor disposed on the vehicle configured for obtaining rail condition data, a memory disposed on the vehicle and storing previous rail condition data from a previous traversal of the rail, a display device disposed on the vehicle, a processor disposed on the vehicle and a non-transitory computer-readable medium disposed on the vehicle and containing instructions, which when executed by the processor, cause performance of the following steps in real-time as the vehicle traverses the rail, namely obtaining current rail condition data from the sensor, displaying on the display device representative images of the current rail condition data, retrieving the previous rail condition data from the memory, and displaying on the display device representative images of the previous rail condition data.

Claims

1. A railway inspection system for monitoring a defect of a rail, comprising:

an inspection vehicle configured for traversing the rail;

a sensor disposed on said vehicle and configured for obtaining rail condition data;

a memory disposed on said vehicle and storing previous rail condition data from at least one previous traversal of the rail;

a display device disposed on said vehicle;

a processor disposed on said vehicle; and

a non-transitory computer-readable medium, disposed on said vehicle, and containing instructions, which when executed by said processor, causes performance of the following steps in real-time as said vehicle traverses the rail;

obtaining current rail condition data from said sensor;

displaying on said display device representative images of said current rail condition data;

retrieving said previous rail condition data from said memory;

displaying on said display device representative images of said previous rail condition data compared with said current rail condition data;

providing a real-time comparison of said previous rail condition data and said current rail condition data on said display device;

comparing said current rail condition data to known rail data patterns;

identifying a current rail condition indicator marker associated with said defect based on said comparison between said current rail condition data to said known rail data patterns;

displaying on said display device a first indicator marker corresponding to said current rail condition indicator and a second indicator marker corresponding to an indicator provided in said previous rail condition data;

determining a quantifiable score based on said current rail condition data and said known rail data patterns, representing said current rail condition indicator marker using said quantifiable score and displaying a user acknowledgement request on said display device when said quantifiable score for said current rail condition indicator exceeds a predetermined threshold value;

separately providing a current data window and a previous data window for simultaneously displaying both said current and previous rail condition data for comparison of said first and second indicator markers; and

associating a color with said first indicator marker, wherein said color indicates the severity of said defect based on said quantifiable score,

displaying on said display device a match designation, if said current rail condition indicator matches said second indicator marker; and

measuring a travel distance of the vehicle since said request for user acknowledgement was made, and if said travel distance exceeds a predetermined length value and said user acknowledgement is not received, halting a portion of said system until said user acknowledgement is received,

wherein said sensor, said memory, said display device, said processor, and said computer-readable medium are electronically connected.

2. The railway inspection system of claim 1, wherein said non-transitory computer-readable medium is further configured to perform the following steps in real-time as said vehicle traverses the rail:

analyzing said current rail condition data unilaterally;

identifying said current rail condition indicator based on said analysis; and

displaying on said display device said indicator marker corresponding to said current rail condition indicator.

3. The railway inspection system of claim 1, further comprising a location device configured for obtaining said location data based on a location of said vehicle.

4. The railway inspection system of claim 3, wherein said non-transitory computer-readable medium is further configured to perform the following steps in real-time as said vehicle traverses the rail:

displaying on said display device a status icon corresponding to said previous rail condition indicator.

5. The railway inspection system of claim 3, wherein said non-transitory computer-readable medium is further configured to perform the following steps in real-time as said vehicle traverses the rail:

displaying on said display device an indicator icon corresponding to said previous rail condition indicator.

6. The railway inspection system of claim 1, wherein said railway inspection system further includes a wireless communication device, and wherein said non-transitory computer-readable medium is further configured to transfer previous rail condition data from a remote server to said memory for storage via said wireless communication device.

7. The railway inspection system of claim 1, wherein said sensor employs ultrasonic signal and measures tolerance, gain value, and temperature levels of portions of the rail to obtain said current rail condition data.

8. The railway inspection system of claim 1, wherein said non-transitory computer-readable medium is further configured to perform the following steps in real-time as said vehicle traverses the rail:

receiving a user selection of a status icon corresponding to said current rail condition indicator.