Railway Consumable Dispenser Malfunction Detection

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Solution Overview

Problem

Current systems for distributing consumables between railway rolling stock wheels and rails lack real-time malfunction detection, leading to suboptimal maintenance frequency and potential damage due to undetected empty tanks or clogged dispensers.

Innovation Solution

A system with consumable level sensors, processing, and control means that determine theoretical and actual consumable levels, generating malfunction data if differences exceed thresholds, and includes geolocation and wireless communication for immediate issue reporting.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If consumable level checks are performed only during scheduled maintenance operations, then maintenance frequency can be reduced, but malfunctions cannot be detected between maintenance operations and maintenance optimization is lost

Engineering Contradiction:
Improvemalfunction detection capabilityVSAvoiddetection system complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The detection system uses the existing control means of the railway rolling stock to automatically perform consumable level checks and malfunction detection. The system self-monitors by comparing actual consumable levels with theoretical levels calculated from distribution instructions, eliminating the need for manual verification during maintenance operations.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system continuously monitors consumable levels and provides feedback by comparing actual levels with theoretical levels. When a discrepancy exceeds a threshold, the system generates a malfunction data item, enabling real-time detection and optimization of maintenance operations based on actual consumable consumption patterns.

Inventive Principle:
Principle #23Feedback

2Loss of time

If manual verification of dispensers is scheduled during maintenance, then malfunction detection is possible, but maintenance frequency must be increased and operational impact increases

Engineering Contradiction:
Improvemaintenance time lossVSAvoidundetected malfunction risk
Core Design Contradiction:
Loss of timeVSReliability

Solution Approach 1:

The system performs preliminary detection of malfunctions by continuously monitoring consumable levels during normal operations. By detecting issues before they lead to operational problems, the system prevents the need for urgent maintenance interventions and reduces overall maintenance time loss.

Inventive Principle:
Principle #10Preliminary action

3Productivity

If consumable distribution is monitored in real-time, then maintenance operations can be optimized, but system complexity and energy consumption increase

Engineering Contradiction:
Improvemaintenance operation efficiencyVSAvoidenergy consumption for monitoring
Core Design Contradiction:
ProductivityVSUse of energy by moving object

Solution Approach 1:

The detection system leverages the existing multi-functional control means already present in railway rolling stock for other operational purposes. By reusing existing sensors, processors, and communication infrastructure, the system achieves real-time monitoring without significant additional energy consumption or system complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentEP3838708B1System and method for detecting a malfunction of a consumable dispenser for railway rolling stock, and method for signalling such a malfunction
Publication Date: 2024.05.29 SNCF VOYAGEURS
  • EP3838708B1 patent drawingFigure 1~2

AI summary

The invention relates mainly to a system for detecting a malfunction of a consumable dispenser for railway rolling stock, which dispenser comprises at least one reservoir and at least one dispensing device intended to distribute said consumable to at least one wheel (1) of said railway rolling stock according to at least one determined dispensing setpoint, the dispenser being in a functional state when at least the level of consumable in its reservoir is above a determined limit level, characterized in that the system comprises at least one consumable level sensor in the dispenser's reservoir, and processing and control means which are connected to the level sensor and the dispensing device, and configured to compare at least one measurement data from the level sensor and the dispensing setpoint,and to generate at least one data point indicating a malfunction of the dispenser if the measurement data from the level sensor is not correlated with the dispensing setpoint.