Locomotive Event Recorder Data Synchronization
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Solution Overview
Problem
Existing event recorders on mobile vehicles lack the ability to synchronize data from multiple sources and provide customizable system notifications, leading to inaccurate investigations and underutilization of real-time data for improving safety and operational efficiency.
Innovation Solution
An event recorder system that synchronizes data from various sources, including train management, energy management, and operator fatigue monitoring systems, using a controller to generate notifications based on customizable parameters and trends, allowing for real-time monitoring and transmission of alarms to other systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If event recorders record data from multiple systems, then data availability increases, but data synchronization and analysis capability remains insufficient
Solution Approach 1:
The event recorder serves as an intermediary system that receives data from multiple source systems (train management, energy management, braking systems, etc.), synchronizes the data based on common attributes, and makes it available for analysis. This mediator approach resolves the contradiction by centralizing data collection while maintaining synchronization capabilities through structured data processing.
2Reliability
If event recorders store data in crash-hardened memory, then data integrity during accidents is improved, but real-time monitoring and alarm functionality is reduced
Solution Approach 1:
The system segments functionality by separating data storage (crash-hardened memory for integrity) from data processing and monitoring (real-time analysis and alarm generation). The event recorder performs real-time monitoring and alarm generation while storing synchronized data in crash-hardened memory, allowing both reliability and automation capabilities to coexist through functional segmentation.
3Adaptability or versatility
If event recorders provide customizable notifications, then system adaptability improves, but device complexity increases
Solution Approach 1:
The event recorder incorporates dynamic configuration capabilities where users can customize notification parameters (thresholds, conditions, recipient systems) without modifying the core system architecture. This dynamic adaptability allows the system to adjust its monitoring and alarm behavior based on specific operational requirements while maintaining a relatively simple base architecture.
4Ease of operation
If investigators rely on witness statements, then investigation process is simpler, but accuracy and timing precision deteriorates
Solution Approach 1:
The event recorder provides automated feedback by generating and transmitting notifications to relevant systems when predefined conditions are met. This feedback mechanism ensures accurate timing and condition-based alerts are automatically communicated to appropriate systems, eliminating reliance on human witness statements and providing precise, objective data for investigations.
Data Source
AI summary
A event recorder system carried on-board a locomotive may include a controller configured to receive data from one or more of a train management system, a cab signaling system, an energy management system, an exhaust aftertreatment monitoring system, a braking system, a communications management system, and an operator fatigue or distraction monitoring system. The data may include one or more of video data, audio data, sensor output data, GPS map data, scanned image data of an operator in a cab of the locomotive, and operational data associated with operation of the locomotive during a trip. The controller may be configured to synchronize the data based on a common attribute associated with all of the data received by the controller, receive from a user one or more customizable parameters predetermined to be indicative of one or more of a system-related characteristic or behavior associated with any one or more of the systems from which the controller receives data, and generate a system notification based on an indication of one or more of a system-related characteristic or behavior that one of falls outside of a predetermined range of system-determinable parameters, or indicates a trend in one or more system-determinable parameters that deviates from an expected trend in the one or more system-determinable parameters.