Train Door Decommissioning via Centralized Emergency Locking
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Solution Overview
Problem
In passenger trains, defective door controls can lead to delays and operational disruptions, as existing systems lack a method to automatically address and isolate faulty door controls, requiring manual intervention by train staff.
Innovation Solution
A centralized emergency locking system connected to the entire train's data bus, allowing for independent control and energy supply, enables the detection, localization, and isolation of defective doors, with adjacent door controls initiating closure and optical or video surveillance for verification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual intervention is used to lock and shut down defective door controls, then the door control can be disabled, but this requires train staff to physically travel to the defective door causing delays and operational disruptions
Solution Approach 1:
The door control unit automatically detects its own defect and performs self-isolation by switching to backup control circuits and activating the emergency locking system without requiring manual intervention from train staff
Solution Approach 2:
A separate emergency locking control circuit acts as an intermediary between the data bus system and the emergency locking actuating device, enabling automatic door locking while isolating the defective door control from the overall system
2Reliability
If the door control is automatically shut down to prevent conflicting commands, then system safety is improved, but the complexity of the control system increases
Solution Approach 1:
The control system is segmented into separate functional circuits: normal door control circuits and independent emergency locking control circuits. This allows the emergency locking function to operate independently without increasing overall system complexity
Solution Approach 2:
A separate emergency locking control circuit serves as an intermediary layer between the data bus system and the emergency locking actuating device, managing the isolation process without requiring complex integration with the defective door control
3Ease of operation
If the door control unit automatically detects and isolates the defective door, then manual intervention is eliminated, but the door control unit must have independent control capability which increases device complexity
Solution Approach 1:
The door control unit is designed with multi-functionality, incorporating both normal door control capabilities and emergency defect isolation functions within the same unit, eliminating the need for separate dedicated isolation devices
Solution Approach 2:
The door control unit automatically detects defects through monitoring circuits and initiates its own isolation process by activating backup control circuits and the emergency locking system without external intervention
Data Source
AI summary
The invention relates to a method and an apparatus for decommissioning faulty doors or faulty moving treadboards on a train. To simplify and speed up decommissioning, the occurrence of a fault in a door controller prompts the faulty door (200) to be decommissioned by remote control by the central monitoring of the doors, either directly or indirectly via the controller (101) for an associated, non-faulty door (100).