Switchable Rail Interlocking Connection via Transformation Instance
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Solution Overview
Problem
The challenge in rail traffic systems is the high effort and risk associated with replacing existing interlocking instances with new ones, particularly due to incompatibilities and the need for rapid conversion within tight time windows, which limits the ability to thoroughly test new technologies before commissioning.
Innovation Solution
A method and system that temporarily maintain connection to the previous interlocking instance, using a transformation instance to translate control data and a switching unit to manage operator authorization, allowing for parallel testing and seamless transition to the new interlocking instance, including a transformation instance to convert signals and power requirements for compatibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the actuating assembly is connected to the new interlocking instance for testing, then the testing capability is improved, but the connection stability deteriorates due to the need to switch between old and new instances
Solution Approach 1:
A transformation instance is introduced as an intermediary component between the actuating assembly and the interlocking instances. This transformation instance handles the switching and translation of communication protocols, allowing the actuating assembly to interact with both old and new interlocking instances without requiring direct reconfiguration. The transformation instance mediates the connection changes, reducing the complexity of direct connection management.
Solution Approach 2:
The system implements dynamic switching capability that allows the actuating assembly to flexibly connect to different interlocking instances based on testing or operational needs. The connection topology is made dynamic rather than fixed, enabling the system to adapt between using the old interlocking instance for stability and the new interlocking instance for testing capabilities.
2Ease of operation
If the actuating assembly is reconnected to the old interlocking instance after testing, then the operational stability is improved, but the testing thoroughness deteriorates due to time constraints
Solution Approach 1:
The system performs preliminary testing actions by connecting the actuating assembly to the new interlocking instance before full commissioning. The transformation instance enables these preliminary tests to be conducted without disrupting the operational connection to the old interlocking instance, allowing thorough testing to be completed in advance of the actual switchover.
Solution Approach 2:
The system maintains continuous operational capability by allowing the actuating assembly to remain connected to the old interlocking instance for stable operation while simultaneously enabling testing connections to the new interlocking instance. This continuity allows testing to occur without interrupting normal railway operations.
3Reliability
If multiple switching operations are performed between old and new interlocking instances, then the testing completeness is improved, but the switching complexity increases
Solution Approach 1:
The transformation instance serves as a mediator that simplifies multiple switching operations by handling the complexity of protocol translation and connection management. Instead of requiring complex direct switching between actuating assembly and different interlocking instances, the transformation instance provides a unified interface that manages all switching operations centrally.
Data Source
Figure 1
AI summary
According to the invention, a method and a system for connecting a control unit (8) for a decentralized functional element (16) in rail transport to a new interlocking instance (22) while temporarily maintaining a connection of the control unit (8) to a predecessor interlocking instance (4) are disclosed, comprising: a) connecting the control unit (8) to the decentralized functional element (16) and the new interlocking instance (22); b) providing a transformation instance (12) which translates control-relevant data to be sent by the control unit (8) to or received from the predecessor interlocking instance into the format required by the predecessor interlocking instance (4) and/or the control unit (8); and c) providing a switching unit (12) which switches the operating authorization between the predecessor interlocking instance (4) and the new interlocking instance (22).In this way, it is possible to test a control module (even a new one) sufficiently in parallel with the operation of the predecessor control instance, in conjunction with the new control instance. The transformer instance therefore converts all signals to and from the control module into the form required by the predecessor control instance, so that it is not apparent to the predecessor control instance that, for example, a completely new control module has taken over the control of a switch or signal.