Unpowered Rail Axle Mileage Tracking via Satellite Positioning
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Solution Overview
Problem
Current monitoring systems for unpowered rail transport units face challenges in accurately tracking the mileage of axles due to lack of power supply, extreme conditions, and logistical complexities, leading to inaccurate maintenance scheduling and potential safety risks from unidentified or replaced axles.
Innovation Solution
A monitoring system utilizing a satellite positioning module to calculate traveled distance and a wireless identification module to detect axle identifiers, allowing for robust and reliable tracking of axle mileage without complex equipment on the axles, and enabling detection of axle replacements and unidentified axles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If manual tracking methods are used to monitor axle mileage, then the system complexity is reduced, but the measurement precision and reliability of mileage data deteriorate
Solution Approach 1:
The patent replaces manual mechanical tracking methods with an automated electronic monitoring system that uses satellite positioning modules and wireless identification tags to automatically capture and transmit mileage data, thereby improving measurement precision while maintaining acceptable system complexity through standardized components
Solution Approach 2:
The monitoring system enables self-service operation where the axle mileage is automatically recorded and transmitted without requiring manual intervention. The system autonomously calculates mileage based on satellite position data and wireless tag identification, eliminating the need for manual data collection while ensuring accurate tracking
2Measurement precision
If complex monitoring equipment is installed on axles to improve mileage tracking accuracy, then measurement precision improves, but device complexity and ease of operation worsen
Solution Approach 1:
The patent divides the monitoring system into separate functional components: satellite positioning modules mounted on the transport unit body, wireless identification tags attached to axles, and a central processing system. This segmentation allows simple tags on axles while maintaining high measurement precision through the integrated system
Solution Approach 2:
The patent introduces wireless identification tags as intermediaries between the axle and the monitoring system. These simple tags contain unique identifiers that are read wirelessly by the monitoring system, enabling accurate axle identification and mileage tracking without requiring complex equipment to be physically installed on the rotating axles
3Measurement precision
If automated monitoring systems are implemented to improve mileage tracking accuracy, then measurement precision improves, but use of energy increases due to lack of power supply on unpowered units
Solution Approach 1:
The satellite positioning module serves multiple functions: it provides precise location data for mileage calculation, enables wireless communication for data transmission, and can operate independently of the transport unit's power supply by harvesting energy from satellite signals or using energy-efficient passive operation modes
Solution Approach 2:
The wireless identification tags are designed as simple, low-cost, energy-free components that can be easily replaced. These passive tags require no power supply and consume minimal energy through wireless communication, providing accurate axle identification throughout their service life and then being replaced when needed
4Ease of operation
If manual axle replacement is allowed without monitoring, then ease of operation improves, but reliability deteriorates due to unidentified axles being mounted
Solution Approach 1:
The monitoring system provides automatic feedback when an axle is replaced by comparing the wireless tag identifier before and after replacement. The system alerts operators to the replacement event and records the new axle's identifier, ensuring that only properly identified axles are mounted while maintaining operational convenience through automated verification
Solution Approach 2:
The system performs preliminary verification by reading the wireless identification tag on an axle before allowing replacement. This preliminary action ensures that the outgoing axle is properly identified and recorded, and that the incoming axle will be verified before mounting, thereby maintaining reliability while allowing easy replacement operations
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
This solution provides accurate and reliable tracking of axle mileage, facilitating safer maintenance operations and reducing the risk of using unidentified axles, especially in transporting hazardous goods, by simplifying the monitoring process and eliminating the need for manual intervention.
Implementation Method 1
a satellite positioning module in order to allow for calculation of the travelled mileage of the transport unit
Implementation Method 2
a communication module comprising a wireless identification module which is adapted to detect one or more wireless identification tags comprising an axle identifier adapted to uniquely identify an axle
Data Source
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AI summary
The monitoring system (100) comprises an axle travelled distance module (50) which is connected with at least one transport unit monitoring system (1) and which is adapted to determine, for each of the axle identifiers (42) detected by at least one of the transport unit monitoring systems (1), an axle travelled distance increment (52) during a corresponding acquisition time period (54) in function of transport unit travelled distance increments (32) during this acquisition time period (54) of the at least one transport unit monitoring system (1) that detected this axle identifier (42) during this acquisition time period (54).