Spread Spectrum Wireless Link for Vehicle Network Interoperability
Find Innovative SolutionsGenerate Solutions
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 across different networks, with existing methods like inductive transponders experiencing interference, discontinuity, and low accuracy in geographic location identification.
Innovation Solution
A method and system that utilize a spread spectrum signal to create a parallel wireless link communication between a transmission module and a wayside equipment module, minimizing interference and enabling accurate geographic location identification by transmitting a spread spectrum signal concurrently with existing wireless signals, allowing for cross-talk rejection and optimized communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If inductive transponders are used for communication, then communication between vehicle and wayside equipment can be established, but interference and discontinuity occur in the signal transmission
Solution Approach 1:
The patent divides the communication system into separate functional modules: a wayside equipment module with downlink and uplink channels, and a vehicle transmission module with corresponding receivers and transmitters. This segmentation allows independent optimization of each communication path and reduces interference between different signal types by assigning them to separate physical channels and processing units.
2Adaptability or versatility
If existing radio signals are used for vehicle network communication, then communication can be maintained, but interoperability and compatibility issues arise between different vehicle networks
Solution Approach 1:
The patent implements a universal communication framework where the wayside equipment module and vehicle transmission module can handle multiple signal types through standardized interfaces. The system supports both dedicated short-range communication (DSRC) and cellular-based communications, allowing different vehicle networks to interoperate through a common protocol layer that translates between various signaling formats and the core communication architecture.
3Measurement precision
If traditional communication methods are used, then system complexity remains manageable, but geographic location identification accuracy is low
Solution Approach 1:
The patent introduces spread spectrum signaling as an intermediary technique between the transmission module and wayside equipment. This intermediary approach embeds unique identification codes within the communication signals, allowing precise geographic location identification through signal correlation and timing analysis without requiring additional complex positioning hardware, thus achieving high accuracy while managing system complexity.
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
The solution provides a reliable and accurate alternative communication path that minimizes interference and enhances geographic location identification, addressing the limitations of existing systems by ensuring continuous and precise communication between vehicle and wayside equipment modules.
Implementation Method 1
transmitting a spread spectrum signal with a first signal in an uplink communication between the uplink transmitter and an uplink receiver
Data Source
Figure 1
Figure 2
Figure 3
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 130 that transmits a spread spectrum signal to a wayside equipment module 120 in which such spread spectrum signal is reflected and communicated to a transmission module 110 through an uplink communication. The uplink communication includes a first signal received from the wayside equipment module 120 and the spread spectrum signal.