IP Library Granted Patent US 9,981,671
Granted Patent B2
US 9,981,671 · App. 13/409,487 · Granted May 29, 2018

Railway inspection system

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Quick Facts
Patent No.
US 9,981,671
App. No.
13/409,487
Granted
May 29, 2018
Kind
B2
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 (34)

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.

Assignments (7)
PATENT RELEASE AND REASSIGNMENT Recorded Apr 5, 2021
From: ARES CAPITAL CORPORATION
To: NORDCO INC.
Reel/Frame 056681/0962 →
CORRECTIVE ASSIGNMENT TO REMOVE APPLICATION NUMBER 29496543 PREVIOUSLY RECORDED AT REEL: 036515 FRAME: 0775. ASSIGNOR(S) HEREBY CONFIRMS THE SECURITY INTEREST. Recorded Oct 20, 2015
From: NORDCO INC.
To: ARES CAPITAL CORPORATION, AS AGENT
Reel/Frame 036899/0213 →
RELEASE OF SECURITY INTEREST Recorded Sep 1, 2015
From: GENERAL ELECTRIC CAPITAL CORPORATION, AS ADMINISTRATIVE AGENT
To: NORDCO RAIL SERVICES & INSPECTION TECHNOLOGIES, INC.
Reel/Frame 036466/0086 →
SECURITY INTEREST Recorded Sep 1, 2015
From: NORDCO, INC.
To: ARES CAPITAL CORPORATION, AS AGENT
Reel/Frame 036515/0775 →
RELEASE OF SECURITY INTEREST Recorded Sep 1, 2015
From: GENERAL ELECTRIC CAPITAL CORPORATION, AS ADMINISTRATIVE AGENT
To: NORDCO, INC.
Reel/Frame 036515/0917 →
SECURITY AGREEMENT Recorded Aug 21, 2013
From: NORDCO INC.
To: GENERAL ELECTRIC CAPITAL CORPORATION, AS ADMINISTRATIVE AGENT
Reel/Frame 031057/0631 →
SECURITY AGREEMENT Recorded Aug 21, 2013
From: NORDCO RAIL SERVICES & INSPECTION TECHNOLOGIES, INC.
To: GENERAL ELECTRIC CAPITAL CORPORATION, AS ADMINISTRATIVE AGENT
Reel/Frame 031058/0945 →