On-Vehicle Device Multi-Wireless Connection Switching
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Solution Overview
Problem
Existing on-vehicle devices face difficulties in easily registering and switching between multiple wireless connection methods and connecting to new mobile terminals, especially when multiple mobile terminals and wireless connections are available, leading to laborious operations for users.
Innovation Solution
An on-vehicle device equipped with a first and second connection control unit for different wireless connections (e.g., Bluetooth and WiFi) and a display unit that concurrently shows selection parts for each connection method, allowing users to easily select and switch between them, and register new terminals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple wireless connection methods are provided for connecting mobile terminals to the on-vehicle device, then the adaptability and versatility of the system is improved, but the device complexity and ease of operation deteriorate due to the difficulty in selecting and switching between connection methods
Solution Approach 1:
The system automatically determines the appropriate connection method based on the mobile terminal type and connection history, eliminating the need for manual selection. The control unit autonomously switches between connection methods (first and second wireless connections) based on predetermined conditions, making the system self-serve the user's connection needs without increasing operational complexity
Solution Approach 2:
The connection method is made dynamic and adjustable based on the situation. The system can switch between different connection methods (first wireless connection for initial pairing, second wireless connection for subsequent connections) depending on the mobile terminal type and connection history, allowing the system to adapt its behavior dynamically rather than requiring static manual configuration
2Adaptability or versatility
If multiple wireless connection methods are supported, then the adaptability is improved, but the device complexity increases due to multiple connection control units and switching mechanisms
Solution Approach 1:
The control unit is designed with multi-functionality to handle both first and second wireless connections. Rather than requiring completely separate control units for each connection method, the control unit can perform multiple functions by switching between different connection modes based on the mobile terminal type and connection history, reducing overall system complexity while maintaining support for multiple cooperation methods
Solution Approach 2:
The connection control functionality is segmented into different modes (first connection method for initial pairing, second connection method for subsequent connections) that can be independently managed. This segmentation allows the system to handle complex multi-connection scenarios through modular, manageable segments rather than a monolithic complex control structure
3Ease of operation
If automatic connection switching is implemented, then the ease of operation is improved, but the reliability may worsen due to potential connection failures or incorrect switching
Solution Approach 1:
The system performs preliminary actions by storing connection history and determining mobile terminal types before actual connection attempts. By pre-determining the appropriate connection method based on stored information and terminal type classification, the system ensures reliable connection switching without random or incorrect method selection, maintaining both ease of operation and connection stability
Data Source
AI summary
An on-vehicle device is connectable to a mobile terminal by a plurality of cooperation methods by use of a plurality of wireless connections, and includes a first connection control unit which performs connection to a first mobile terminal by a first cooperation method by use of a first wireless connection, a second connection control unit which performs connection to the first mobile terminal by a second cooperation method by use of a second wireless connection, and a display unit which displays a connected state to the first mobile terminal, the display unit displays a cooperation method selection image including a first selection part to execute connection by the first connection control unit, and a second selection part to execute connection by the second connection control unit, and the first selection part and the second selection part are displayed concurrently in the display unit.