Train Network Segmentation Reducing Data Overload
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Solution Overview
Problem
Large train architectures face network overload risks due to the concentration of data management for power supply, braking, and heating equipment, which can lead to inefficiencies and operational challenges.
Innovation Solution
Implementing a distributed network architecture with multiple vehicle buses and gateway systems, where each group of equipment is responsible for specific functions (comfort or propulsion/braking), with master computers summarizing data and transmitting only necessary information to reduce network load, and allowing for reprogramming without modifying configuration tables.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a centralized network architecture is used where all equipment connects to a single train bus, then the network structure is simple, but the network becomes overloaded when the train comprises a large number of transport units
Solution Approach 1:
The patent divides the train network into multiple vehicle buses, each serving a specific transport unit or group of equipment. Each vehicle bus is managed by a local master computer that filters and summarizes data before transmitting to the train bus. This segmentation reduces the load on the central train bus while maintaining network reliability as the train grows in size.
2Loss of information
If all equipment data is transmitted through the train bus, then complete information is available, but network overload occurs reducing communication efficiency
Solution Approach 1:
The patent extracts and processes data locally at each vehicle bus level using master computers. These master computers filter raw equipment data, retain only relevant information, and transmit summarized data through the train bus. This extraction approach maintains necessary information completeness while dramatically reducing network traffic and improving communication efficiency.
Solution Approach 2:
The master computers act as intermediary devices between equipment and the central train bus. They receive detailed equipment data, process and summarize it, then transmit only essential information to the train bus. This intermediary layer preserves data completeness where needed while optimizing network bandwidth utilization.
3Adaptability or versatility
If equipment is distributed across multiple vehicles, then the system is more flexible and scalable, but the network architecture becomes more complex
Solution Approach 1:
The patent implements a universal master computer architecture that can manage multiple vehicle buses and adapt to different train configurations. Each master computer performs the same functions (data collection, filtering, summarization) regardless of which specific equipment it manages, enabling scalable deployment without increasing architectural complexity.
Data Source
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AI summary
The invention relates to a transport unit (28) comprising: - at least one passenger transport vehicle (6, 8, 10, 12) and at least one attached driving vehicle (4, 14), - a network assembly (29) comprising a train bus (29A), a first (32) and a second (45) footbridge, a first (34) and a second (46) vehicle bus, each connected to the train bus (29A) via the first (32) and second (45) footbridges respectively, and a first (36) and second (48) group of on-board equipment connected only to the first (32) and second (45) footbridges respectively. The transport unit comprises at least two vehicles, each of which includes at least one piece of equipment from the first group of equipment (36) and at least one piece of equipment from the second group of equipment (48).