Train Activation Control for Conflicting Motorman Requests
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The current double-vehicle activation processing method in railway trains poses a potential safety hazard as it allows automatic activation of a vehicle with a keyhole at an open position, leading to unauthorized control of the train.
Innovation Solution
An activation control method and apparatus that receive and determine multiple activation requests from motorman controllers, triggering emergency braking when multiple requests are detected, and ensuring only a single authorized motorman controller can control the train by sending a circuit signal to a target relay and establishing a communication connection for control signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a vehicle key hole is at an open position, then the vehicle is automatically activated to allow direct train driving, but this creates a potential safety hazard due to unauthorized control
Solution Approach 1:
The system continuously monitors the states of all vehicle key holes and provides feedback to the control unit. When multiple key holes are detected in the open position, the system responds by triggering emergency braking and preventing train activation, thus resolving the safety hazard while maintaining ease of operation for legitimate single-key activation
Solution Approach 2:
The control unit acts as an intermediary between the vehicle key holes and the train activation system. It receives signals from key holes, processes the information according to safety rules (checking for multiple open positions), and only permits activation when the configuration is valid (single key hole open), thereby preventing unauthorized control while allowing legitimate operation
2Reliability
If multiple activation requests are received from different motorman controllers, then the system should prevent unauthorized control, but this requires complex detection and control logic
Solution Approach 1:
The control unit performs multiple functions: it monitors key hole positions, counts activation requests, determines the state of vehicle components, and controls emergency braking. By consolidating these diverse functions into a single control unit, the system achieves high reliability in preventing unauthorized control while minimizing the increase in device complexity
Solution Approach 2:
The system automatically detects multiple activation requests and autonomously triggers emergency braking without requiring external intervention. The control unit self-monitors the activation requests from different motorman controllers and self-corrects the unsafe state by preventing train activation and initiating emergency braking, thereby ensuring safety without adding complex external control mechanisms
Data Source
AI summary
Disclosed are an activation control method and apparatus for a railway train. The method includes that: at least one activation request sent by at least one motorman controller of a railway train is received; a number of at least one motorman controller sending the at least one activation request is determined; when there are a plurality of motorman controllers sending the at least one activation request, the railway train is controlled to perform an emergency braking; and when there is one motorman controller sending the at least one activation request, it is determined that a target motorman controller has a permission to control the railway train, wherein the target motorman controller is a unique motorman controller sending the at least one activation request. The present disclosure solves the problem in the related art of potential safety hazard of a double-vehicle activation processing method.