Train Dwell Time Control via Passenger Detection
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Solution Overview
Problem
Current automatic train operating systems lack the ability to adjust dwell times based on the number of passengers present on the platform and those boarding or deboarding, which can compromise passenger safety, especially in stations with varying passenger populations.
Innovation Solution
A system comprising passenger detection devices that analyze images from cameras to calculate the number of passengers and an operation control server that adjusts dwell times accordingly, ensuring safe and efficient train operations by dynamically determining boarding and deboarding times.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a predetermined dwell time is used for automatic train operation, then train operation efficiency is improved, but passenger safety cannot be guaranteed when passenger numbers vary
Solution Approach 1:
The system dynamically adjusts the dwell time based on real-time passenger detection data. The ATO device receives passenger count information from the passenger detection device and automatically modifies the predetermined dwell time to ensure safe boarding and deboarding operations, resolving the contradiction between fixed efficiency and variable safety requirements
Solution Approach 2:
The passenger detection device continuously monitors passenger numbers on the platform and feeds this information back to the ATO device. This feedback loop enables the system to automatically adjust dwell time according to actual passenger conditions, maintaining both operational efficiency and passenger safety
2Reliability
If manual dwell time decision is made by driver, then passenger safety is ensured, but automation level decreases
Solution Approach 1:
The system enables the train to automatically determine appropriate dwell time by itself. The ATO device receives passenger detection data and automatically calculates and applies the appropriate dwell time without driver intervention, allowing the automation system to serve itself while maintaining safety
Solution Approach 2:
The passenger detection device acts as an intermediary between the manual decision-making process and the automated train operation. It provides objective passenger count data that enables the ATO device to make informed dwell time decisions, bridging the gap between manual safety assessments and automated operation
3Reliability
If dwell time is increased for stations with large floating population, then passenger safety is improved, but train operation schedule efficiency decreases
Solution Approach 1:
The system changes the dwell time parameter dynamically based on detected passenger numbers. For stations with large floating populations during commute times, the system automatically increases dwell time, while for stations with fewer passengers, it maintains or reduces dwell time, optimizing the balance between safety and schedule efficiency
Data Source
AI summary
The present invention relates to a system, server, and method for automatically calculating a platform dwell time of a train. The system includes a passenger detection device configured to determine the number of passengers who board or deboard a train entering a station; an operation control server configured to calculate an appropriate dwell time of the train by using the number of passengers, which is received from the passenger detection device; and an ATO device configured to control a dwell time of the train by using the appropriate dwell time, which is received from the operation control server.