Train Information Display System Dynamic Sequence Control
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Solution Overview
Problem
Conventional train information display systems display operation information uniformly across all trains, regardless of the impact on passengers, leading to unnecessary display of non-operation information and reduced time for advertisements and guidance.
Innovation Solution
A train information display system that determines the degree of influence of operation status on passengers and adjusts the display sequence accordingly, allowing for efficient display of operation information based on the impact on each train's passengers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If operation information is displayed uniformly on all trains regardless of influence degree, then all passengers receive operation information, but display time for advertisements and guidance is reduced
Solution Approach 1:
The patent applies local quality by differentiating the display behavior based on the specific train's situation. Each train evaluates whether operation information affects its passengers, and only trains with affected passengers display the operation information. This selective approach ensures that information is provided locally where needed while preserving advertisement and guidance display time for unaffected trains.
Solution Approach 2:
The patent changes the display parameter (whether to display operation information) based on the influence evaluation result. The system transitions from a static uniform display mode to a dynamic parameter-adjusted display mode, where the display state is modified according to the evaluated influence degree on each train's passengers.
2Loss of information
If operation information is displayed on all trains, then information is widely distributed, but unnecessary information is displayed on trains not directly related
Solution Approach 1:
The patent extracts the operation information display function from the universal display system and applies it selectively. By evaluating the influence degree for each train, the system extracts and activates the display function only for trains where passengers are actually affected, removing the harmful effect of displaying unnecessary information on unaffected trains while maintaining wide distribution where needed.
Solution Approach 2:
The patent introduces dynamics into the information display system by making the display state changeable based on real-time evaluation results. The system dynamically determines whether to display operation information for each train based on the influence assessment, transitioning from a static all-or-nothing display approach to a flexible, condition-based display approach.
Data Source
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AI summary
In a train information display system that displays an operation information on each train in a train, a ground system 71 adds the information on the degree of influence on the passengers of each train to the operation information, and transmits the resultant operation information to a transmission-reception device 64. A content data server 65 stores in advance, as normal-time display information, at least one of advertisement information and destination guidance information that are to be displayed during normal operations. Instruction output devices 41 to 44 instruct content display units 51 to 54 to display the operation information and normal-time display information in a display sequence corresponding to the influence information received by the transmission-reception device 64.