Laser Sensor Displacement Measurement for Switch Machine Actuating Rod
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Solution Overview
Problem
Current systems for high-speed railways lack a method to comprehensively monitor and analyze the displacement data of switch machine actuating rods during rotation and train passing, which is crucial for ensuring the steady and safe operation of high-speed railways.
Innovation Solution
A system comprising a laser sensor, an acquisition unit, a communication unit, a station server, a station monitoring terminal, and a signal centralized monitoring system server, which is mounted on a switch machine and capable of acquiring and analyzing displacement data of the actuating rod.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a laser sensor is mounted on the switch machine to measure actuating rod displacement, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The laser sensor system is integrated with existing switch machine monitoring infrastructure, allowing the same measurement system to serve multiple functions including displacement measurement, position monitoring, and operational status detection, thereby reducing overall system complexity
Solution Approach 2:
A reflection surface is introduced as an intermediary element between the laser sensor and the actuating rod, enabling non-contact displacement measurement without requiring direct physical attachment to the moving rod, thus simplifying the measurement system while maintaining precision
2Reliability
If displacement measurement is implemented during rotation and train passing, then reliability of operation monitoring is improved, but difficulty of detecting and measuring increases
Solution Approach 1:
The laser sensor is pre-positioned and calibrated before operation, with the reflection surface pre-installed on the actuating rod, enabling immediate and reliable displacement measurement during dynamic operations such as rotation and train passing without requiring complex real-time adjustments
Solution Approach 2:
The mechanical contact-based displacement measurement method is replaced with a non-contact laser measurement system, eliminating wear and friction issues that would complicate measurement during high-speed rotation and train passing, thereby improving reliability while reducing measurement difficulty
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 system effectively acquires displacement data of the switch machine actuating rod during switch transactions and train passing, enabling better monitoring and analysis of the switch machine's operating state, thus ensuring the safe and stable operation of high-speed railways.
Implementation Method 1
a laser sensor, an acquisition unit, a communication unit, a station server
Implementation Method 2
a reflection surface of the laser sensor for emitting a laser is a pressure spring adjustment nut of a switch machine connector
Data Source
AI summary
The present invention relates to a system and method for measuring displacement of a switch machine actuating rod, the system including a laser sensor, an acquisition unit, a communication unit, a station server, and a station monitoring terminal, wherein the laser sensor and the acquisition unit are respectively mounted in a switch machine; the laser sensor is fixed at one end of the switch machine actuating rod; the acquisition unit is connected to the communication unit; the communication unit is connected to the station server; and the station server is connected to the station monitoring terminal and a signal centralized monitoring system server respectively. Compared with the prior art, the present invention can acquire displacement data of the actuating rod of an S700K-C type switch machine during switch transaction and train passing, and can still better monitor and analyze an operating state of the switch machine.