Single Rail Shunt Cable Assembly with Inline Ohm Meter
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Solution Overview
Problem
Current shunt devices for railroad tracks are prone to wear and dislodgment, leading to false electrical circuit alerts, requiring additional personnel to ensure connection stability and safety, which can result in safety hazards and operational inefficiencies.
Innovation Solution
A single rail shunt cable assembly with retractable wires and an inline ohm meter connected to signal lights, ensuring a secure and reliable electrical connection by monitoring the circuit integrity and providing visual indicators for workers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If current shunt devices are used to complete the electrical circuit, then the track can be repaired and train traffic can continue, but the clamps wear and dislodge causing false alerts and requiring additional personnel to monitor
Solution Approach 1:
The patent incorporates visual indicators (flags or lights) that provide immediate feedback to workers and the Dispatcher's Office about the integrity of the electrical circuit connection. When the clamps are properly attached and the circuit is complete, the indicator shows a green light or extended green flag; when the connection is compromised or clamps dislodge, the indicator changes to red or retracts the green flag, alerting personnel to the issue without requiring constant manual monitoring.
Solution Approach 2:
The shunt cable assembly monitors its own connection status and provides self-diagnosis through the visual indicators. The system automatically detects when clamps are improperly attached or have dislodged and communicates this status without external intervention, allowing the device to serve itself in terms of monitoring and alerting, thereby reducing the need for additional personnel.
2Reliability
If additional personnel are assigned to monitor shunt cable connections, then false alerts can be detected and safety can be improved, but labor costs and operational complexity increase
Solution Approach 1:
The visual indicator system provides continuous, automatic feedback about circuit integrity to both workers on the track and the Dispatcher's Office. The green flag extension or green light illumination occurs automatically when the circuit is complete, and the red flag extension or red light illumination occurs when there is a problem, eliminating the need for personnel to continuously check connection status.
Solution Approach 2:
The patent introduces an intermediary monitoring system consisting of visual indicators (flags and lights) that mediate between the physical connection status and the information needed by workers and dispatchers. This intermediary system translates the electrical connection state into visible signals, allowing accurate monitoring without requiring additional human observers.
3Reliability
If shunt cable clamps are secured tightly to the track, then electrical connection reliability improves, but the device may interfere with train traffic or make installation more difficult
Solution Approach 1:
The shunt cable assembly is divided into separate functional components: cable clips for electrical connection, clamps for mechanical attachment to the track, and visual indicators for monitoring. This segmentation allows each component to be optimized independently - the cable clips can be designed for reliable electrical contact while the clamps can be designed for easy installation and removal without interfering with train traffic.
Solution Approach 2:
The patent applies different properties to different parts of the assembly: the cable clips have conductive properties for electrical connection, the clamps have mechanical gripping properties for secure attachment, and the visual indicators have visible properties for monitoring. This local differentiation of qualities allows the device to achieve reliable electrical connection without compromising installation ease or train traffic flow.
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 enhances safety and operational efficiency by providing a secure electrical connection, reducing the risk of false alerts and personnel hazards, allowing for safer and more efficient track repairs while maintaining train traffic flow.
Implementation Method 1
An ohm meter is joined to the shunt cable proximate the first cable clip. The ohm meter that shows a circuit connection between the first clamp and the second clamp when the first clamp and the second clamp are attached to the damaged railroad rail segment.
Data Source
AI summary
A single rail shunt cable assembly is configured to repair a damaged railroad rail segment. The single rail shunt cable assembly has a shunt cable with a first shunt cable end and a second shunt cable end. A first cable clip is joined to the first shunt cable end. A second cable clip is joined to the first shunt cable end. An ohm meter is joined to the shunt cable proximate the first cable clip. The ohm meter that shows a circuit connection between the first clamp and the second clamp when the first clamp and the second clamp are attached to the damaged railroad rail segment.