Controllable Track Shunt Circuit for Automated Rail Testing
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Solution Overview
Problem
Existing systems for testing track circuits require significant manual effort, leading to increased costs and inefficiencies.
Innovation Solution
A system comprising a track activity detection circuit and a controllable shunt circuit that can remotely connect and disconnect the rails, allowing for automated testing and calibration of track circuits without the need for on-site personnel, using a shunt with adjustable impedance to simulate vehicle presence and detect electrical connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual testing methods are used for track circuits, then testing can be performed, but significant manual effort is required resulting in increased costs and reduced productivity
Solution Approach 1:
The system enables automated self-testing of track circuits through remotely controllable shunt circuits that can be operated without on-site personnel. The track activity detection circuit automatically detects electrical connections between rails, and the shunt circuits can be remotely actuated to simulate vehicle presence, allowing the system to test itself without manual intervention.
Solution Approach 2:
The patent replaces manual mechanical testing operations with automated electrical control systems. Remote controllers send electrical signals to actuate shunt circuits, replacing the need for physical manual operations. The system uses electrical detection circuits to monitor track status, substituting manual visual inspection and physical testing with automated electrical measurement.
2Ease of operation
If remote testing is implemented, then operational costs are reduced, but reliable detection of electrical connections must be maintained
Solution Approach 1:
The track activity detection circuit serves as an intermediary between the remote controller and the track circuit under test. It locally detects electrical connections between rails with high precision and transmits this information to the remote operator, bridging the gap between remote control capability and local measurement accuracy.
Solution Approach 2:
The shunt circuits create electrical copies of vehicle-axle connections between rails. By remotely actuating shunts that simulate the electrical characteristics of vehicle presence, the system can test track circuit detection capabilities without requiring actual vehicles, maintaining measurement precision while enabling remote operation.
3Productivity
If shunt circuits are used to simulate vehicle presence, then testing frequency can be increased, but impedance matching must be maintained for accurate detection
Solution Approach 1:
The shunt circuits are designed with specific impedance values that can be changed to match different testing scenarios. By adjusting shunt impedance parameters to replicate the electrical characteristics of actual vehicle axles, the system maintains accurate detection while enabling frequent automated testing without requiring physical vehicles.
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
Enables cost-effective and efficient remote testing and monitoring of track circuits, improving reliability and frequency of testing while reducing operational costs.
Implementation Method 1
the track activity detection circuit is configured to detect vehicle presence on the track system by detecting an electrical connection between the first rail and the second rail
Implementation Method 2
The at least one track shunt circuit is configured to selectively electrically connect the first rail and the second rail through a shunt
Data Source
AI summary
A system includes a track system having a first rail and a second rail, a track activity detection circuit electrically connected to each of the first rail and the second rail, a track shunt circuit electrically connected to the first rail and the second rail, wherein the track shunt circuit is configured to selectively electrically connect the first rail and the second rail through a shunt. A method includes receiving an instruction to apply a shunt between a first rail and a second rail of a track system, and electrically connecting the first rail to the second rail through a controllable track shunt circuit.