Spread Spectrum Wireless Link for Vehicle Network Interoperability
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Solution Overview
Problem
Vehicle communication systems face interoperability issues due to disconnects in technological capabilities, leading to compatibility problems in signaling and automated control systems between different vehicle networks, particularly with inductive transponders causing discontinuity, delay, and low accuracy in geographic location identification.
Innovation Solution
A method and system that establish a parallel wireless link communication using a continuous spread spectrum signal in addition to uplink and downlink communications between a transmission module and a wayside equipment module, minimizing interference and enabling cross-talk rejection, allowing for more accurate geographic location identification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If inductive transponders are used for communication between vehicle networks, then wireless communication is enabled, but interoperability and compatibility issues arise due to disconnects in technological capabilities
Solution Approach 1:
The patent changes the fundamental communication parameter from inductive coupling to spread spectrum radio frequency communication. This enables wireless communication while avoiding the technological capability disconnects that plague inductive transponder systems, thereby improving interoperability across different vehicle networks without sacrificing wireless communication capability.
Solution Approach 2:
The patent replaces the mechanical/electromagnetic inductive coupling system with a radio frequency spread spectrum communication system. This substitution eliminates the compatibility issues inherent in inductive transponders while maintaining wireless communication functionality, allowing seamless interoperability between diverse vehicle networks.
2Loss of information
If inductive transponders are used for geographic location identification, then location data can be obtained, but accuracy is low and delays occur
Solution Approach 1:
The patent replaces inductive transponder-based location identification with spread spectrum signal processing. By using correlation techniques and code division multiplexing, the system achieves superior geographic location accuracy and eliminates the delays inherent in inductive transponder responses, while maintaining continuous location identification capability.
3Productivity
If separate vehicle networks are established with varying technology implementations, then specific network functions can be optimized, but signaling systems and automated control systems lack compatibility
Solution Approach 1:
The patent implements a universal spread spectrum communication layer that can carry multiple signaling protocols and control messages simultaneously. This universal communication infrastructure enables different vehicle networks to maintain their optimized functions while achieving seamless interoperability through a common communication language, resolving the compatibility issues between signaling systems.
Data Source
AI summary
Systems and methods for creating an alternative parallel wireless link communication in addition to wireless signals for a vehicle network. Embodiments of the present invention provide a spread spectrum transmission module that transmits a spread spectrum signal to a wayside equipment module in which such spread spectrum signal is reflected and communicated to a transmission module through an uplink communication. The uplink communication includes a first signal received from the wayside equipment module and the spread spectrum signal.