Train Stop Timer Using Wheel Tachometer Data
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Solution Overview
Problem
Existing train control systems do not effectively provide operators with accurate and contextually relevant information on the duration of train stops, leading to potential operator errors and increased effort in tracking and reporting delays.
Innovation Solution
A computer-implemented system and method that utilizes an active wheel tachometer and track database to provide real-time information on train stop duration to operators, including visual and audio outputs, and alerts based on predefined thresholds, using GPS, inertial sensors, and other positioning systems to determine train location and status.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the operator manually tracks stop time using a clock, then the operator can determine stop duration, but this introduces operator error and requires additional effort
Solution Approach 1:
The system automatically determines train stop duration by monitoring wheel tachometer data and track location information without requiring operator intervention. The computer system self-services by calculating stop time based on when the train enters and exits stopped states at specific track locations, eliminating manual clock tracking and reducing operator error while requiring no additional operator effort
Solution Approach 2:
The system provides continuous feedback to the operator through the operator interface displaying current stop duration. The computer monitors wheel tachometer data in real-time, calculates stop duration, and feeds this information back to the operator via the display, enabling precise measurement while automating the process completely
2Measurement precision
If the system uses wheel tachometer data to determine stop duration, then accuracy is improved, but system complexity increases
Solution Approach 1:
The system leverages the existing wheel tachometer, already present in the train control system for speed monitoring, and gives it a additional function of stop duration measurement. The same wheel tachometer data used for speed control is also analyzed to determine when the train is stopped, eliminating the need for separate sensors or additional hardware complexity
Solution Approach 2:
The system combines stop duration determination with the existing train control and navigation functions. The computer system that already processes wheel tachometer data for speed control now also determines stop duration by analyzing the same data stream in conjunction with track location information, merging multiple functions into a single integrated system
Data Source
AI summary
A train control system and method for a train including at least one locomotive or control car and, optionally, at least one railroad car, in a track network having a plurality of tracks, includes at least one computer programmed or configured to receive or determine an indication that the train is stopped, continuously increment a counter in response to the indication that the train is stopped, and control an operator interface to output a current count of the counter to an operator of the train.