Automated Track Inspection System with Lateral Load Fixture
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Solution Overview
Problem
Current railroad track inspection methods, such as manual Portable Track Loading Fixtures and specialized track geometry cars, are costly, time-consuming, and infrequent, as they require human operation and specialized equipment, limiting the frequency of loaded gauge measurements and posing safety risks.
Innovation Solution
An automated vehicle equipped with an Automatic Track Loading Fixture (ATLF) that replicates the lateral load of a railcar or locomotive, allowing for autonomous geometry measurement inspections and navigating track junctions, reducing the need for human-operated specialized vehicles and increasing measurement frequency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual Portable Track Loading Fixture is used, then loaded gauge measurements can be obtained, but the inspection frequency is low and operational complexity increases
Solution Approach 1:
The Automated Track Loading Fixture performs measurements autonomously without requiring human operators to manually position and operate the device. The system self-navigates along the track, self-positions the loading arms, and automatically collects geometry measurements, thereby increasing inspection frequency while maintaining measurement precision
Solution Approach 2:
The patent replaces the manual mechanical operation of the PTLF with an automated vehicle system that uses sensors, actuators, and control systems. This substitution eliminates the need for human operators to manually position and operate the loading fixture, significantly increasing inspection frequency and reducing operational complexity
2Measurement precision
If specialized track geometry car is used, then loaded gauge measurements can be obtained, but safety risks increase and operational complexity increases
Solution Approach 1:
The automated vehicle performs all track inspection functions autonomously without requiring human operators to be present on or near the track. The system navigates, positions loading arms, and collects measurements automatically, eliminating safety risks associated with human exposure to moving trains and track equipment while maintaining measurement precision
3Measurement precision
If specialized track geometry car is used, then loaded gauge measurements can be obtained, but cost increases
Solution Approach 1:
The automated vehicle is designed as a multi-functional platform that can perform loaded gauge measurements, unloaded geometry measurements, and track obstruction detection. By consolidating multiple inspection functions into a single automated system, the patent reduces the need for multiple specialized vehicles and equipment, thereby reducing overall cost while maintaining measurement precision
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution enables more frequent loaded gauge measurements, reduces safety risks, and minimizes disruptions to revenue rail operations by automating the track inspection process, allowing for efficient and consistent track geometry assessments across the network.
Implementation Method 1
an Automatic Track Loading Fixture (ATLF) to replicate the lateral load of a railcar or locomotive
Data Source
AI summary
An autonomous device for rail track inspection includes a drive wheel system propelling the device via a drive wheel system, an automatic track loading fixture for and applying a load on rails, and sensors for taking track gauge measurement. Different automatic track loading fixtures may require stopping for load and measurement, or loading and measuring while still in motion. A switch agnostic system for operation with devices on a conventional railroad track system includes a linear slider movably mounted along a linear sliding support; multiple sensors mounted to the linear slider, the sensors operable to identify a rail of a track junction; and multiple roller bearings operable to engage the rail of the track junction and control the device across the track junction in response to movement of the linear slider along the linear sliding support.