Vehicle Communication Apparatus Adaptive Transmission Mode
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Solution Overview
Problem
Existing communication apparatuses degrade throughput by transmitting packets based on low communication quality areas, even when traveling through high-quality areas, and cloud server methods increase load by requiring constant quality updates for vehicle information transmission.
Innovation Solution
A communication apparatus with a mode determination unit to prioritize vehicle information transmission based on transmission speed in each traveling section, using a mode selection unit to choose the appropriate transmission mode and a transmission unit to transmit information accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the communication apparatus transmits packets in accordance with the worst communication quality in all areas, then packet transmission failure is prevented in low-quality areas, but throughput is degraded and transmission time increases
Solution Approach 1:
The patent applies dynamics by making the transmission mode adaptable and changeable based on current communication conditions. The communication apparatus dynamically switches between first transmission mode (prioritizing reliability in low-quality areas) and second transmission mode (prioritizing throughput in high-quality areas), resolving the contradiction between maintaining packet transmission reliability and maximizing throughput.
Solution Approach 2:
The patent changes transmission parameters (priority order of vehicle information types) based on communication quality conditions. In the first transmission mode, high-immediacy information is prioritized to ensure reliability in low-quality areas, while in the second transmission mode, normal priority ordering is used to maximize throughput in high-quality areas, thus resolving the contradiction.
2Reliability
If the cloud server designates transmission necessity to all vehicles based on latest communication quality, then transmission failure is prevented in low-quality areas, but load on the cloud server increases
Solution Approach 1:
The patent applies self-service by enabling the communication apparatus to autonomously determine transmission modes and prioritize information based on its own communication quality assessment. The apparatus independently switches between transmission modes without requiring cloud server intervention, thereby reducing cloud server load while maintaining transmission reliability.
Solution Approach 2:
The patent segments the transmission control function from the cloud server to the local communication apparatus. By dividing the system into independent decision-making units (each vehicle's communication apparatus), the patent eliminates the need for centralized cloud server coordination, reducing server load while maintaining reliable transmission through local adaptive control.
Data Source
AI summary
A communication apparatus determines a transmission mode to specify a priority order of a plurality of types of vehicle information for each traveling section, based on each transmission speed in one or more traveling sections. The communication apparatus selects a transmission mode at a position where a vehicle is traveling, from among transmission modes in each traveling section. The communication apparatus transmits the plurality of types of vehicle information in accordance with the priority order specified in the selected transmission mode.