Automated Railroad Tie Plugging System for Spike Hole Positioning
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Solution Overview
Problem
Conventional ride-on tie plugging equipment requires manual operator intervention to locate and position the applicator over spike holes in railroad tracks, leading to inefficiencies and potential errors due to the repetitive and time-consuming nature of the process.
Innovation Solution
An automated applicator system equipped with a microprocessor, distance measurement sensors, and a predetermined pattern of spike holes, which moves the applicator nozzle relative to the frame to accurately dispense tie plugging compound into spike holes, eliminating the need for manual positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual operator positioning is used to locate and position the applicator over spike holes, then the equipment structure remains simple, but the operation time increases and operator fatigue increases
Solution Approach 1:
The patent replaces manual mechanical positioning with an automated system that uses distance measurement sensors to detect spike hole locations and a microprocessor to control the applicator's movement. The microprocessor receives signals from the sensors, processes the position data, and automatically actuates the applicator nozzle to the correct location, eliminating the need for manual operator intervention in the positioning process.
Solution Approach 2:
The equipment performs self-positioning and self-actuation through the integrated sensor-processing-actuation loop. The distance measurement sensors automatically detect the spike hole positions, the microprocessor calculates the required movement, and the applicator nozzle is automatically positioned and activated without requiring continuous manual guidance or intervention from the operator.
2Reliability
If manual positioning is performed repeatedly for each spike hole, then the equipment remains simple, but operator errors increase due to fatigue
Solution Approach 1:
The patent replaces manual positioning with an automated sensor-based system. Distance measurement sensors detect the precise location of each spike hole, and the microprocessor controls the applicator's movement to the exact position. This automated positioning mechanism eliminates operator fatigue and associated errors while maintaining high positioning accuracy.
Solution Approach 2:
The system incorporates distance measurement sensors that continuously monitor the position of the applicator relative to the spike holes. The microprocessor receives feedback signals from these sensors and adjusts the applicator's position accordingly, ensuring accurate targeting. This closed-loop feedback mechanism maintains positioning accuracy without requiring manual intervention.
3Ease of operation
If automated positioning is implemented, then operator fatigue decreases, but the device complexity increases
Solution Approach 1:
The microprocessor serves multiple functions within the system: it processes signals from the distance measurement sensors, calculates the required applicator positioning, controls the actuation timing, and coordinates the entire automated plugging sequence. By consolidating these multiple functions into a single microprocessor unit, the patent reduces overall system complexity while achieving automated operation.
Solution Approach 2:
The patent combines the distance measurement sensors, microprocessor control system, and applicator actuation mechanism into an integrated automated positioning system. These components work together as a unified system where the sensors detect positions, the microprocessor processes the data and controls the timing, and the applicator executes the plugging action, eliminating the need for separate manual positioning operations.
Data Source
AI summary
Systems and methods for automated repair and maintenance operations on a railroad track comprise a work head that is automatically moved over the railroad track according to a predetermined pattern, such as the movement of an applicator for tie plugging compound according to a predetermined pattern of spike holes. The automated repair and maintenance operations may be coupled to systems and methods for automatically detecting a feature on a railroad track that comprise two or more distance measurement sensors that travel over the railroad track. Features on the railroad track are detected where the distance measured by each sensor falls within two different predetermined distance ranges.