Train Safe Stopping Zone Control via Ground Information
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Solution Overview
Problem
High-speed railways lack a safe stopping zone on routes prone to geological disasters, leading to inaccurate train stopping and potential safety risks during events like debris flows and landslides, as existing systems do not provide reliable information for safe stopping zones.
Innovation Solution
A method and system that include a ground information acquisition unit sending safe stopping zone information to a control unit, which calculates and displays the zone's position to the driver, allowing the train to stop safely by determining the starting and ending points of the zone, and enabling automatic or manual control to apply braking curves for safe stopping.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If no safe stopping zone information is provided to trains, then the system remains simple, but train stopping accuracy deteriorates and safety risks increase during geological disasters
Solution Approach 1:
The system pre-establishes safe stopping zones along the railway route and stores their position information in advance. When geological disasters occur, the train control system can immediately access and navigate to these pre-designated safe zones without needing to make real-time decisions, thereby improving stopping accuracy while maintaining relatively simple system architecture.
Solution Approach 2:
A ground information acquisition unit and ground information transmission unit are introduced as intermediaries to convey safe stopping zone information from the ground-based safety system to the train control system. This intermediary mechanism enables accurate stopping guidance without requiring complex direct communication between all system components.
2Reliability
If drivers choose stopping places based on experience or dispatching orders, then the operation process remains simple, but safety reliability deteriorates due to inaccurate stopping decisions
Solution Approach 1:
The system provides real-time feedback to the driver through the display unit, showing the train's current position relative to the safe stopping zone and guidance information. This feedback mechanism enables the driver to make informed stopping decisions based on objective system data rather than subjective experience, thereby improving safety reliability without requiring complex automated control systems.
Solution Approach 2:
The train control system automatically acquires, calculates, and displays safe stopping zone information without requiring external intervention or complex manual procedures. The system serves itself by autonomously managing the information flow from ground-based safety data to onboard display, reducing the cognitive burden on drivers while improving decision reliability.
3Measurement precision
If safe stopping zone information is transmitted and displayed to the driver, then stopping precision improves, but information processing complexity increases
Solution Approach 1:
The system extracts only the essential safe stopping zone information (position coordinates, distance to stopping point) from the comprehensive ground-based safety data and transmits only this extracted information to the train. This selective information extraction reduces processing complexity while maintaining stopping precision by focusing on the most critical parameters needed for safe stopping.
Data Source
Figure 1
AI summary
The present invention provides a method and a system for controlling a train to stop in a safe stopping zone. The method includes the following steps: receiving information on a safe stopping zone and sending the information on the safe stopping zone to a control unit by a ground information acquisition unit; calculating information on a position of the safe stopping zone according to the information on the safe stopping zone and sending the information on the position of the safe stopping zone to a display unit by the control unit; displaying the information on the safe stopping zone for a driver by the display unit, so as to guide the driver performing operation; and controlling a train to stop in the safe stopping zone according to the information on the position of the safe stopping zone by the control unit or the driver. The above method improves safety of running of the train, especially safety of running of the train on a route with frequent geological disasters.