Locomotive Event Recorder Playback Synchronization
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Solution Overview
Problem
Current systems for event recorders in locomotives do not effectively synchronize and analyze data from multiple locomotives in a consist, making it difficult to determine the cause of events like accidents, as each recorder operates independently with separate system clocks, preventing aligned playback and analysis of datasets.
Innovation Solution
An event recorder playback system that uses a processor to receive and save datasets from multiple locomotives, determine a point of synchronization, and align the datasets in time for synchronized output, allowing for comprehensive analysis of events across multiple locomotives.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If event recorder data is collected from multiple locomotives independently, then each locomotive has its own complete operational record, but the data cannot be synchronized for combined analysis
Solution Approach 1:
The patent introduces a synchronization module that acts as an intermediary between multiple independent event recorders. This module receives time synchronization signals and adjusts the system clocks of different locomotives to a common reference, enabling the independently collected data to be temporally aligned for combined analysis without compromising the completeness of each locomotive's operational record
Solution Approach 2:
The event recorder system is designed with universal time synchronization capabilities that can handle data from multiple locomotives simultaneously. The system can process and align datasets from any number of locomotives in a consist, making it versatile for analyzing events across the entire train formation rather than being limited to single-locomotive analysis
2Adaptability or versatility
If separate system clocks are used in each locomotive, then each recorder operates independently, but time alignment for event analysis becomes difficult
Solution Approach 1:
The system implements a feedback mechanism where time synchronization signals are continuously monitored and adjusted. The synchronization module receives timing information from a reference source, compares it with each locomotive's system clock, and makes real-time adjustments to maintain accurate time alignment, ensuring precise temporal correlation of events across all locomotives while preserving independent operation
Solution Approach 2:
The patent establishes a common time reference level for all locomotives in the consist, creating temporal equipotentiality. By synchronizing all system clocks to the same reference standard, the system eliminates time drift and offset between different locomotives, enabling accurate time-aligned analysis of events across the entire train formation
3Ease of operation
If data from multiple locomotives is analyzed separately, then processing is simpler, but determining causation in events requires manual correlation
Solution Approach 1:
The system merges multiple independently collected event recorder datasets into a single synchronized timeline. By automatically aligning data from all locomotives in a consist based on their synchronized time stamps, the system enables simultaneous viewing and analysis of all operational data in one unified interface, eliminating the need for manual correlation while preserving the simplicity of independent data collection
Data Source
AI summary
An event recorder playback system for a plurality of locomotives in a consist is described, including a processor configured to receive and save a first dataset and a second dataset associated with operation of a first locomotive and a second locomotive, respectively, in the consist. The processor may determine, using the processor, a point of synchronization of the first dataset and the second dataset with respect to time, and align the first dataset and the second dataset using the point of synchronization. The event recorder playback system may be further configured to output the first dataset and the second dataset on an output device. The output is aligned with respect to time.