Locomotive On-Board Data Backup via Off-Board Server
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Solution Overview
Problem
Existing remote data backup systems for locomotives do not provide a reliable method for automatically maintaining, backing up, and updating on-board equipment operational data, leading to potential loss of critical data during failures, repairs, or replacements of central processing modules and associated memory.
Innovation Solution
A remote data backup system that includes a communication unit on-board the locomotive communicatively coupled with an off-board server, a central processing module that integrates equipment operational data from sensors and controls, and a method for self-checking and requesting data downloads from the off-board server if local memory is empty, ensuring continuous data integrity and updates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If on-board memory is used to store equipment operational data, then data is readily accessible for control operations, but data is lost during failures, repairs, or replacements of central processing modules
Solution Approach 1:
The system performs preliminary actions by automatically uploading equipment operational data to an off-board server before failures occur. The central processing module periodically transmits data messages containing equipment operational data to the server, ensuring data is backed up in advance and can be restored if the on-board memory is lost during failures or repairs.
Solution Approach 2:
An off-board server acts as an intermediary between multiple locomotives and a central repository. The server receives data messages from locomotives via wireless communication, stores the equipment operational data, and can transmit data back to locomotives that need it, serving as a backup and distribution medium that prevents data loss.
2Productivity
If data is constantly updated and stored on-board, then real-time control is enabled, but system complexity increases
Solution Approach 1:
The data management system is segmented into two parts: on-board storage for real-time access and off-board storage for backup. The on-board central processing module maintains equipment operational data for immediate control operations, while periodically transmitting data to the off-board server, dividing the storage burden and reducing overall system complexity.
Solution Approach 2:
Instead of continuous transmission, the system uses periodic action by having the central processing module transmit data messages to the off-board server at scheduled intervals. This periodic upload reduces communication overhead and simplifies the data management system while still ensuring data is backed up and available when needed.
3Extent of automation
If automatic train operation is implemented, then operator elimination is achieved, but control system reliability must be extremely high
Solution Approach 1:
The system provides beforehand cushioning by maintaining a backup copy of equipment operational data on the off-board server. If the on-board central processing module or memory fails, the locomotive can retrieve previously backed-up data from the server, cushioning against failures and ensuring the automatic train operation system remains reliable and operational.
Data Source
AI summary
A remote data backup system for a locomotive may include a communication unit on-board the locomotive configured to be communicatively coupled with an off-board server. The communication unit may be configured to transmit data to the off-board server and receive at least one of data, commands, and applications from the off-board server. The remote data backup system may also include a central processing module on-board the locomotive comprising a cab electronics system configured to receive and store on-board equipment operational data from outputs of one or more of machine gauges, indicators, sensors, and controls in an on-board memory, process and integrate the received equipment operational data, receive additional equipment operational data and one or more control command signals from the off-board server, and communicate commands based on the equipment operational data and the received control command signals. The system may also perform a self-check upon startup of the locomotive to determine whether equipment operational data is present in the on-board memory, and request a download of previously uploaded data from the off-board server if the self-check determines that no equipment operational data is present in the on-board memory.