Trainline Network Access Point for Parallel Data Transmission
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Solution Overview
Problem
Existing communication systems in locomotive consists, such as the MU cable, are insufficient for complex operations like multi-unit blended fuel operations, as they cannot transmit multiple packets of network data in parallel, leading to suboptimal performance and inadequate fault condition severity and cause information transmission.
Innovation Solution
A trainline network access point connected to an intra-consist electrical cable, comprising a network data signal path, a first communication module, a second communication module, and a network switch, which selectively connects and modulates network data for parallel transmission over the intra-consist electrical cable, increasing data throughput and accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a single communication module is used to transmit network data over the MU cable, then device complexity is reduced, but data throughput and communication bandwidth are insufficient for complex locomotive operations
Solution Approach 1:
The communication system is segmented into multiple independent communication modules (first communication module, second communication module, etc.), each capable of handling separate data streams. This segmentation allows parallel transmission of multiple packets simultaneously, thereby increasing overall data throughput while maintaining manageable complexity through modular design
Solution Approach 2:
The system transitions from single-dimensional sequential communication to multi-dimensional parallel communication by utilizing multiple communication modules operating simultaneously. This dimensional expansion allows multiple data packets to be transmitted in parallel across different communication channels, significantly boosting throughput capacity
2Adaptability or versatility
If the MU cable transmits only conventional command data, then communication protocol simplicity is maintained, but network data transmission capability is insufficient
Solution Approach 1:
The communication system is designed with multi-functionality to handle both conventional command data and Ethernet network data through the same MU cable infrastructure. The network access point acts as a universal interface that can process and forward different types of data packets, making the system adaptable to diverse communication needs without requiring separate dedicated cables for each data type
Solution Approach 2:
The network access point serves as an intermediary device between the Ethernet network and the MU cable system. It receives network data packets, processes them, and forwards appropriate packets through the MU cable to the destination locomotive, enabling network data transmission capability while maintaining the existing MU cable infrastructure
3Productivity
If parallel transmission of multiple data packets is implemented, then communication efficiency is improved, but signal interference and error rates may increase
Solution Approach 1:
Multiple communication modules are used to segment the data transmission into separate parallel channels. Each module handles specific data packets independently, allowing efficient parallel transmission while maintaining signal integrity through dedicated communication paths for each data stream
Solution Approach 2:
The system incorporates feedback mechanisms where transmitted data packets are acknowledged and monitored. This feedback allows for error detection and correction, ensuring that even during parallel transmission, signal accuracy is maintained and any transmission errors can be identified and addressed
Data Source
AI summary
A trainline network access point connected to an intra-consist electrical cable of a consist has a network data signal path, first and second communication modules, and a network switch. The network switch is connected to the first and second communication modules and configured to selectively connect the network data signal path to the first communication module and the second communication module. The first communication module has a first processor configured to receive first network data via the network data signal path, modulate the first network data for transmission over the intra-consist electrical cable, and transmit the first modulated network data over the intra-consist electrical cable. The second communication module includes a second processor configured to receive second network data via the network data signal path, modulate the second network data for transmission over the intra-consist electrical cable, and transmit the second modulated network data over the intra-consist electrical cable.