Wireless Short-Circuit Bridge Detection for Railway Safety
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Solution Overview
Problem
Existing short-circuit lances for simulating train presence in railway sections are unreliable due to potential breakage of electrical contact and require manual verification, leading to unsafe situations where the track relay may re-energize, allowing unauthorized train entry.
Innovation Solution
A device with wireless communication means for monitoring short-circuit resistance, including a GSM/GPRS module for remote status transmission, positioning via GPS, and an impedance measuring circuit, along with a remote-controlled switch for semi-permanent installation and activation, ensuring continuous and reliable detection of short-circuit status without manual intervention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual verification of track relay status is performed, then safety can be confirmed, but personnel risk and time consumption increase
Solution Approach 1:
The detection device automatically monitors track relay status and sends alerts without requiring manual verification by personnel. The system performs self-checks and communicates status changes remotely, eliminating the need for workers to physically verify relay states while maintaining continuous safety monitoring.
Solution Approach 2:
The system continuously monitors track relay status and provides real-time feedback through remote alerting mechanisms. When the relay changes state or abnormal conditions are detected, the system immediately notifies relevant personnel, enabling rapid response without requiring continuous manual presence at the track section.
2Reliability
If continuous monitoring is implemented, then reliability improves, but device complexity increases
Solution Approach 1:
The detection device serves as an intermediary between the track relay and remote monitoring personnel. It incorporates monitoring functions and communication capabilities in a single integrated unit that can be placed at the track section, simplifying the overall system architecture while enabling continuous monitoring and remote alerting.
3Device complexity
If short-circuit resistance changes are not monitored, then device simplicity is maintained, but safety risks increase due to unintended relay re-energization
Solution Approach 1:
The detection device continuously monitors short-circuit resistance between the rails and provides feedback when resistance changes indicate potential relay re-energization. This automatic detection and alerting mechanism maintains safety protection without requiring complex additional equipment, as the monitoring is integrated into the existing detection device architecture.
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
Enhances safety and reliability by providing real-time monitoring and remote control of short-circuit status, preventing unintended track section re-activation and reducing personnel risk during manual operations.
Implementation Method 1
detection means for detecting and monitoring, in use, the short-circuit resistance of the short-circuit bridge realised by the two arms and between the two rails
Data Source
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AI summary
The invention relates to a device for detecting a short-circuit bridge between or across the rails of a railway section, comprising a first arm, which can be brought into electrical contact with a first rail; a second arm, which can be brought into electrical contact with the other rail; an electrical power source, as well as detection means for detecting and monitoring, in use, the short-circuit resistance of the short-circuit bridge realised by the two arms and between the two rails. According to the invention the short-circuit lance or device for detecting a short-circuit bridge between or across the rails of a railway section is characterised in that the detection means are provided with wireless communication means for wirelessly transmitting information regarding (the status of) the short-circuit resistance of the short-circuit bridge that has been realised. In this way it is no longer necessary to visit the track section in question to check the status of the short-circuit resistance.