Train Operation Status Reproduction via Event Extraction
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Solution Overview
Problem
Existing systems for reproducing the operation status of a train face challenges in efficiently verifying the status due to large data volumes and the need for workers to manually search through recorded data to find specific events, leading to poor work efficiency.
Innovation Solution
An operation status reproducing device that integrates onboard, ground, and external information to efficiently reproduce and verify the operation status of a train by automatically detecting specific events and synthesizing relevant data for display and analysis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If all data is separately recorded and bound for reproduction, then complete operation status verification is achieved, but storage capacity requirements increase and data handling complexity increases
Solution Approach 1:
The patent extracts and records only specific event information and relevant operational data instead of all possible data. The event information recording unit selectively captures data associated with specific events, thereby reducing storage requirements while maintaining verification capability for critical operations.
Solution Approach 2:
The patent segments data recording into different categories: event information, operational data, and picture data. Each segment is recorded and managed separately, allowing efficient storage and retrieval. The reproduction process selectively combines these segments based on the specific event being verified, rather than handling all data uniformly.
2Reliability
If all recorded pictures are checked to search for specific events, then complete verification is achieved, but work efficiency decreases
Solution Approach 1:
The system performs preliminary sorting and indexing of recorded data by event type, time, and location during the recording phase. When verification is needed, the relevant data is already organized and can be quickly retrieved without manual searching through all pictures, significantly improving work efficiency while maintaining verification completeness.
Solution Approach 2:
The reproduction process provides feedback by automatically presenting relevant event information and associated pictures in an organized manner. This allows workers to verify specific events efficiently without manually searching through all recorded data, as the system feedback mechanism directs attention to only the necessary information.
3Measurement precision
If detailed operational data is recorded for verification, then accuracy of verification improves, but data processing complexity increases
Solution Approach 1:
The patent applies different recording and processing qualities to different types of data based on their verification needs. Event information is recorded with high precision and detail, while routine operational data is recorded with sufficient but not excessive detail. This local quality approach ensures verification accuracy for critical events while reducing overall data processing complexity.
Data Source
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AI summary
The present invention is an operation status reproducing device (10) that reproduces an operation status of a train based on onboard information managed by an onboard device (30) and ground information managed by a ground device (50) and includes an onboard information obtaining unit (11) that obtains the onboard information corresponding to date and time from the onboard device mounted on a designated train being a train specified by a train number and the date and time externally designated, a specific event detecting unit (12) that specifies time at which a specific event occurs by analyzing the onboard information obtained by the onboard information obtaining unit (11), a ground information obtaining unit (13) that obtains the ground information in a certain period including the time at which the specific event occurs from the ground device, an external information obtaining unit (14) that obtains external information including weather information in a certain period including the time at which the specific event occurs, and a reproduction image generating unit (29) that generates a reproduction image illustrating a past operation status of the designated train based on the onboard information, the ground information, and the ground information.