Multi-Train Coupling State Detection for Automatic Formation Control
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Solution Overview
Problem
Existing safety detection methods for train coupling in rail transit are limited to two-train couplings and cannot effectively manage the safety of multi-marshalled trains, which is necessary for optimizing train operations and passenger satisfaction, especially in long tunnels and peak periods.
Innovation Solution
A safety check method and device that determines train formation information, including length, weight, and traction braking characteristics, using a trackside zone controller to calculate and transmit train formation IDs for multiple train units, ensuring safe and automatic train operation through predefined formation IDs and coupler state detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a two-train coupling detection method is used, then the detection system is simple, but it cannot detect the coupling state of multi-marshalled trains
Solution Approach 1:
The patent segments the multi-train coupling detection problem into individual train unit detection tasks. Each train unit's controller independently detects its own coupling state at both ends, and then the zone controller synthesizes these individual states to determine the overall train formation. This segmentation allows the system to handle multi-train coupling without requiring a completely new complex detection architecture.
Solution Approach 2:
The patent merges the detection capabilities of individual train units with the zone controller's synthesis function. The zone controller combines the coupling state information from multiple train units to calculate the overall train formation ID, achieving multi-train detection capability by merging simple individual detections with centralized information integration.
2Productivity
If manual train formation management is used, then the system is simple to implement, but it cannot optimize train operations for peak periods and long tunnels
Solution Approach 1:
The patent implements self-service automation where the system automatically detects coupling states, calculates train formation IDs, and manages train formations without manual intervention. The zone controller autonomously synthesizes coupling information from train units and determines train formations, enabling the system to optimize operations for peak periods and long tunnels automatically.
Solution Approach 2:
The patent establishes a feedback mechanism where coupling state information from train units is continuously transmitted to the zone controller, which calculates and returns train formation IDs. This closed-loop feedback enables automatic adjustment and optimization of train formations based on real-time coupling states, improving operational efficiency.
3Object-affected harmful factors
If small marshalled trains operate individually through long tunnels, then the operation flexibility is high, but the piston wind effect increases air pressure on trains
Solution Approach 1:
The patent applies dynamics by enabling flexible, real-time adjustment of train formations based on operational conditions. The system can dynamically couple multiple train units into larger formations when passing through long tunnels to reduce piston wind effects, and separate them when operational flexibility is needed. This dynamic reconfiguration capability resolves the contradiction between reducing air pressure and maintaining operational flexibility.
Data Source
AI summary
The present invention relates to a safety check method and device for coupling of multiple train units in rail transit, and medium, the method including: determining train formation information to obtain the length, weight and traction braking characteristics of the whole train, so as to automatically protect the running of the train on a route and realize automatic driving. Compared with the prior art, the present invention can detect the coupling states of more than 2 marshalled trains.