Optical Link Data Exchange for Railway Power Modules
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Solution Overview
Problem
The complexity of maintaining reliable railway installations due to numerous interactions and varying networks and cabling poses challenges, particularly regarding train running safety, necessitating a simpler method for data exchange between power modules and transistor gate controls.
Innovation Solution
A method involving optical links between power modules and transistor gate controls, where electrical measurements are taken using sensors like Wheatstone bridges and transmitted through optical links, combined with a control system using time-division multiplexing over a passive optical network for efficient data exchange and centralized control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If numerous networks and cabling are used for signal transmission in railway installations, then data exchange between power modules and transistor gate controls is achieved, but maintenance complexity increases and reliability decreases
Solution Approach 1:
The patent merges multiple separate communication links into a single optical fiber network. Instead of having separate cabling for each signal transmission between power modules and transistor gate controls, all communications are consolidated over one optical fiber infrastructure, reducing maintenance complexity while maintaining reliability
Solution Approach 2:
The patent introduces optical links as an intermediary medium to replace traditional electrical cabling. Optical fibers serve as the mediator for data exchange between power modules and transistor gate controls, eliminating the need for complex electrical networks and their associated maintenance requirements
2Reliability
If traditional electrical cabling and networks are used for data exchange, then data transmission between power modules and transistor gate controls is achieved, but electromagnetic interference occurs and maintenance becomes complicated
Solution Approach 1:
The patent replaces the electrical/mechanical cabling system with an optical communication system. Optical fibers transmit data using light instead of electrical signals, eliminating electromagnetic interference entirely while maintaining robust data exchange capabilities for train running safety
Solution Approach 2:
Optical fibers serve as an intermediary that isolates electrical systems from each other. The optical link acts as a barrier that prevents electromagnetic interference from propagating between power modules and transistor gate controls, enhancing train running safety
3Reliability
If multiple separate links are used to connect power module to each transistor gate control, then data exchange is achieved, but number of physical connections and costs increase
Solution Approach 1:
The patent combines multiple individual communication connections into a single shared optical fiber network. Instead of having separate physical links from the power module to each transistor gate control, all connections are merged into one optical infrastructure, reducing the quantity of physical connections and associated costs
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach simplifies data exchange, enhances reliability, reduces electromagnetic interference, and improves maintenance efficiency by using optical links for robust and efficient communication, facilitating centralized control and redundancy strategies while minimizing physical connections and costs.
Implementation Method 1
each gate control being connected to the power module via a link optical, the method comprising steps of, for at least one transistor, measuring at least one electrical quantity relating to the transistor, and of transmitting the measurement to the power module through the optical link
Data Source
Figure 1~2
AI summary
The present invention relates to a method of exchanging data between a power module (20) and a plurality of gate controls (24) of transistor (22), each gate control (24) controlling a transistor (22), each gate control (24) being connected to the power module (20) via an optical link (26), the method comprising the steps of: - for at least one transistor (22), measuring at least one electrical quantity relating to the transistor (22), - transmitting the measurement to the power module (20) through the optical link (26).