Vehicle Communication Mode Switching for V2P Backup Access
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Solution Overview
Problem
Conventional vehicle sharing services are disrupted when the server malfunctions or the mobile communication network fails, preventing users from accessing vehicle information and services.
Innovation Solution
A communication mode switching apparatus and method that enables communication between a user and a vehicle through a Vehicle to Pedestrian (V2P) protocol, allowing direct communication even when the server system or mobile communication network is unavailable, by calculating and moving to a position where V2P communication is possible, and using multiple communication modes including V2P and mobile communication networks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If communication is provided only through a server based on mobile communication network, then service management and control can be centralized, but communication between user terminal and vehicle device cannot be established when server or network fails
Solution Approach 1:
The patent introduces a dual communication path: server-based communication (via mobile network) and direct peer-to-peer communication (via V2P protocol). The V2P communication acts as an intermediary backup path that activates when the server-based path fails, ensuring communication continuity without requiring complete system redesign
Solution Approach 2:
The communication architecture dynamically switches between server-based mode and direct V2P mode based on server availability and network status. The system adapts its communication path in real-time, transitioning from centralized server mediation to direct device-to-device communication when needed
2Reliability
If direct V2P communication is established between vehicle and user terminal, then communication can continue when server or network fails, but position calculation and connection establishment become more complex
Solution Approach 1:
The vehicle device and user terminal autonomously establish direct V2P communication without requiring server intervention. The devices self-manage connection establishment, position calculation, and communication maintenance, reducing dependency on external infrastructure while maintaining service continuity
3Adaptability or versatility
If multiple communication modes are supported, then communication can be maintained under various circumstances, but system complexity and energy consumption increase
Solution Approach 1:
The system dynamically selects and switches between communication modes (server-based mobile network communication and direct V2P communication) based on real-time conditions such as server availability, network status, and communication requirements. This dynamic adaptation allows the system to use energy-efficient modes when possible while maintaining versatility when needed
Solution Approach 2:
The communication device is designed with multi-functional capability to support both server-based communication and direct V2P communication protocols. This universal design enables the single device to adapt to different communication scenarios without requiring separate dedicated systems for each mode
Data Source
AI summary
A communication mode switching apparatus installed in a vehicle is connected to a user terminal and a server system for providing a vehicle sharing service. The apparatus is configured to perform operations including: supporting communication based on communication modes and communicating with the server system, determining, according to a communication state between a communication unit and the server system, whether the server system or a mobile communication network has failed, selecting at least one communication mode in response to the determined result, and operating the communication unit in the selected communication mode. The communication modes include a first communication mode for communicating with the user terminal via a vehicle to pedestrian (V2P) protocol and a second communication mode for communicating with the server system via the mobile communication network. The apparatus calculates a position where the V2P communication with the user terminal is possible in the first communication mode.