Rail Vehicle Control via Conductive Pathway Signals
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Solution Overview
Problem
Existing rail vehicle communication systems face interference issues in urban areas due to the use of wireless RF signals, leading to interruptions and inefficiencies, and require costly equipment, necessitating a more reliable and cost-effective method for communicating with rail vehicles.
Innovation Solution
A rail vehicle control communication system that utilizes conductive pathways, such as rails or catenaries, to transmit data signals between management devices and rail vehicles, allowing for the control of propulsion and braking efforts, as well as the upload and download of operational information, through electric signals or acoustic waves, reducing the reliance on wireless communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If wireless RF signals are used to communicate with rail vehicles, then remote control capability is achieved, but communication reliability deteriorates due to interference from other wireless signals in urban areas
Solution Approach 1:
The patent introduces conductive pathways (rails or catenaries) as an intermediary medium to transmit control signals. Instead of directly transmitting RF signals from controller to locomotive, the system uses the conductive pathway as a relay: the controller transmits signals to a communication device coupled with the conductive pathway, which then transmits to the locomotive. This intermediary approach eliminates wireless interference while preserving remote control capability.
2Ease of operation
If wireless RF communication equipment is used, then remote control functionality is provided, but system cost increases
Solution Approach 1:
The patent leverages the existing conductive pathways (rails or catenaries) that already serve the dual purpose of electrical power transmission and data communication. By encoding control signals on these existing infrastructure elements, the system eliminates the need for dedicated wireless communication equipment, achieving cost reduction while maintaining remote control functionality.
3Reliability
If conductive pathways are used for communication, then communication reliability improves by minimizing wireless interference, but system complexity increases due to coupling requirements
Solution Approach 1:
The system utilizes the conductive pathway's existing electrical connection to the locomotive for both power delivery and data communication. The communication device couples with the conductive pathway at a fixed location, and the locomotive's existing electrical infrastructure serves the dual function of receiving power and transmitting control signals, eliminating the need for separate coupling mechanisms.
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 solution provides reliable and efficient communication by minimizing wireless interference, reducing equipment costs, and enabling remote control and data management of rail vehicles, improving operational safety and efficiency.
Implementation Method 1
a vehicle management device capable of being coupled with a conductive pathway extending along a track and of forming an instruction to control an operation of a rail vehicle travelling along the track, the vehicle management device transmitting the instruction to the rail vehicle through the conductive pathway
Implementation Method 2
an on-board communication device capable of being coupled with the rail vehicle, the on-board communication device configured to receive the instruction communicated through the conductive pathway from the vehicle management device
Data Source
AI summary
A rail vehicle control communication system includes a vehicle management device capable of being coupled with a conductive pathway extending along a track and of forming an instruction to control an operation of a rail vehicle travelling along the track, the vehicle management device transmitting the instruction to the rail vehicle through the conductive pathway; and an on-board communication device capable of being coupled with the rail vehicle, the on-board communication device configured to receive the instruction communicated through the conductive pathway from the vehicle management device, the on-board communication device configured to change the operation of the rail vehicle based on the instruction.