Train Communication Path Routing Without Relay Infrastructure
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Solution Overview
Problem
Conventional vehicle communication systems for trains require additional time and effort to install and operate relay devices for quick information transmission from on-vehicle devices to central devices, which hampers the efficiency and reliability of communication.
Innovation Solution
The system enables inter-vehicle communication between trains to consolidate information and transmit it directly to the central device via terrestrial communication devices, using path determiners and priority determiners to optimize information transmission paths and priorities based on operating information and properties of the data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If relay devices are installed to enable quick information transmission from on-vehicle devices to central devices, then information transmission speed is improved, but device complexity and installation cost increase
Solution Approach 1:
The patent uses opposing trains as intermediary carriers to transmit failure information. Instead of installing dedicated relay devices, the system leverages existing trains passing through the area to carry information from the incident location to the central device, eliminating the need for additional infrastructure while maintaining fast transmission speed
Solution Approach 2:
The system utilizes the trains' own communication capabilities and existing infrastructure to perform the relay function. Trains equipped with onboard communicators serve themselves as information carriers, using their regular movement and communication systems without requiring external relay devices or additional installation
2Reliability
If relay devices are deployed for quick information transmission, then communication reliability is improved, but installation time and operational complexity increase
Solution Approach 1:
The system pre-establishes communication protocols and identifies potential information carrier trains in advance. When a failure occurs, the nearest suitable train is already prepared and can immediately carry the information, eliminating the need for last-minute relay device installation while ensuring reliable transmission
Solution Approach 2:
By using passing trains as intermediaries, the system achieves reliable information transmission without requiring permanent relay infrastructure. The trains naturally follow predetermined routes and schedules, providing consistent and reliable information carriage without installation time or operational complexity
3Productivity
If conventional relay devices are used for information transmission, then information can be transmitted quickly, but the system requires additional infrastructure that increases cost and complexity
Solution Approach 1:
The patent makes existing trains serve multiple functions: their regular transportation role plus an additional information carriage role. By equipping trains with onboard communicators that can detect and transmit failure information, the system achieves high transmission efficiency without needing dedicated relay infrastructure, as the trains' existing movement patterns and routes are utilized for both purposes
Solution Approach 2:
The system uses the trains' own communication systems and onboard equipment to perform the relay function. Trains with failure detection capabilities can independently identify issues and transmit information using their existing communication infrastructure, eliminating the need for separate relay devices and simplifying system implementation
Data Source
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AI summary
A vehicle communication system according to an embodiment includes a central device and an on-vehicle device. A path determiner of the central device determines an information transmission path between a plurality of vehicles for consolidating information in a vehicle that performs a wireless communication with a terrestrial communication device out of the vehicles based on at least operating information on the vehicles. An on-vehicle communicator of the on-vehicle device acquires the information transmission path directly from the central device via the terrestrial communication device or indirectly from the central device via the terrestrial communication device and a second vehicle, and transmits and receives predetermined information to and from the terrestrial communication device or the second vehicle based on the acquired information transmission path.