Railcar Consist Data Transmission Reliability via Dual Transceiver Comparison
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Solution Overview
Problem
Existing data communication systems in a consist, such as railcars, face issues with data transmission failures due to exposure to weather and mechanical stress, and they do not effectively repair erroneous or corrupted data, leading to potential operational delays.
Innovation Solution
A system utilizing dual communication lines with transceivers to compare and determine the accuracy of critical data signals, prioritizing transmission through functioning transceivers and separating critical from noncritical data to ensure reliable operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If redundant transmission is used to ensure data reliability, then data transmission reliability is improved, but bandwidth capacity is exceeded and critical data cannot be transmitted
Solution Approach 1:
The data is segmented into critical data and non-critical data portions. Critical data is transmitted through both transceivers with comparison for high reliability, while non-critical data uses standard redundancy. This segmentation allows critical data to receive enhanced protection without consuming excessive bandwidth for all data types.
Solution Approach 2:
Different quality levels of transmission are applied to different data portions. Critical data receives higher quality transmission with comparison and selection mechanisms, while non-critical data uses standard redundancy. This local quality approach optimizes bandwidth usage by applying enhanced reliability only where necessary.
2Ease of manufacture
If cabling techniques are used for data transmission, then data communication is established, but cable failures occur due to weather and mechanical stress
Solution Approach 1:
The patent replaces mechanical cabling with wireless communication (WLAN) for transmitting data between railcars. This substitution eliminates the mechanical cable system that is vulnerable to weather and physical stress, while maintaining data communication capability through radio frequency transmission.
3Reliability
If redundant router transceiver pairs are used, then data transmission reliability is improved, but erroneous data is not repaired and operational delays occur
Solution Approach 1:
The system implements feedback through comparison of data from multiple transceivers. The processor compares received data signals, detects errors in redundant transmissions, and selects the correct data. This active feedback mechanism repairs erroneous data immediately rather than allowing operational delays.
Solution Approach 2:
The system performs preliminary comparison and error detection on received data before using it for control operations. By checking data integrity in advance through transceiver comparison, the system prevents erroneous data from causing operational delays downstream.
Data Source
AI summary
A system is disclosed for communicating a dataset in a consist, the dataset having a critical data portion. The system includes a first transceiver configured to communicate a first data signal indicative of at least the critical data portion of the dataset over a first communication line, and a second transceiver configured to communicate a second data signal indicative of at least the critical data portion of the dataset over a second communication line. The system includes a processor configured to receive the first data signal and the second data signal, to compare the first data signal with the second data signal to determine whether the first data signal or the second data signal includes a more accurate signal, and to determine at least the critical data portion of the dataset based upon the more accurate signal. The critical data portion is associated with the operability of the consist.