Vehicle Wireless Communication Device Dynamic Channel Switching
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Solution Overview
Problem
In vehicle wireless communication systems, communication disruptions occur when a self-vehicle and a roadway instrument move apart, leading to limited access to services during their interaction.
Innovation Solution
A vehicle wireless communication device equipped with a position detection section, running direction detection section, and control section that dynamically adjusts communication settings to maintain connection with the nearest roadway instrument based on detected positions and directions, preventing disruptions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the vehicle wireless communication device uses fixed reception channels set from service notification information, then the device can initially establish communication with roadway instruments, but communication disruption occurs when the self-vehicle and roadway instrument move apart
Solution Approach 1:
The patent applies dynamics by transitioning from fixed channel assignment to dynamic channel selection. The control section continuously monitors communication quality and switches reception channels based on real-time conditions, allowing the system to adapt as the self-vehicle and roadway instrument move relative to each other. This dynamic adjustment prevents communication disruption by selecting optimal channels during motion.
Solution Approach 2:
The patent implements feedback through continuous monitoring of communication quality between the self-vehicle and roadway instrument. The control section receives feedback about communication status and uses this information to determine when to switch channels or adjust reception settings, creating a closed-loop system that maintains reliable communication despite relative movement.
2Reliability
If the device switches channels dynamically to track moving roadway instruments, then communication reliability improves, but the device complexity increases due to additional position detection and control mechanisms
Solution Approach 1:
The control section serves multiple functions: it manages channel switching, monitors communication quality, determines when to switch channels, and coordinates with position detection. By consolidating these diverse functions into a single multi-functional control section, the patent avoids the need for separate dedicated components for each function, thereby managing complexity while achieving reliable dynamic channel selection.
3Adaptability or versatility
If the vehicle wireless communication device maintains communication with distant roadway instruments, then service access is improved, but signal quality and communication stability deteriorate over distance
Solution Approach 1:
The system dynamically adjusts reception channels based on real-time communication quality rather than relying on fixed assignments. When the self-vehicle moves away from a roadway instrument, the dynamic channel switching mechanism identifies and transitions to channels with better signal conditions, maintaining stable communication despite increasing distance.
Solution Approach 2:
The patent changes the parameter of reception channel frequency based on communication conditions and distance. By selecting different frequency channels adapted to the current spatial relationship between self-vehicle and roadway instrument, the system optimizes signal reception quality while maintaining service access capability over varying distances.
Data Source
AI summary
The present application is such that, in order to prevent communication disruption caused by a change in the situation of wireless communication due to the distance between a roadway instrument and a self-vehicle, a vehicle wireless communication device includes a communication section; a control section which controls the reception in the communication section; a position detection section which detects the position of a roadway instrument; and a running direction detection section which detects the running direction of a self-vehicle, wherein the communication section, based on the roadway instrument position detected by the position detection section and on the self-vehicle running direction detected by the running direction detection section, receives information from a roadway instrument next closest to a roadway instrument carrying out communication.