In-Vehicle Mobile Interface Using Directional and Voice Navigation
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Solution Overview
Problem
Existing vehicle navigation systems lack intuitive methods for users to interact with mobile devices, particularly in vehicles, limiting the ease of use and functionality.
Innovation Solution
A vehicle-mounted system with directional input switches and a headset for voice interaction, allowing seamless integration and control of mobile device functions, including menu navigation and voice commands, enhancing user interaction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a physical button set is provided in the vehicle for manual operation, then the user can input instructions to the mobile device, but the method of using the physical button set for inputting instructions is not disclosed and lacks intuitiveness
Solution Approach 1:
The physical button set is designed to serve multiple functions: it can select cooperative functions, navigate menu hierarchies, perform target selections, indicate active states, and trigger voice search. This multi-functionality resolves the contradiction by making a single simple device capable of intuitive operation across various contexts without requiring complex separate controls for each function.
Solution Approach 2:
The system provides feedback to the user through the display device, showing the current state, selected functions, and navigation progress. This feedback mechanism makes the operation of the physical button set more intuitive by clearly indicating the effect of each button press, resolving the lack of disclosed usage methods and improving ease of operation.
2Adaptability or versatility
If multiple cooperative functions are provided with menu hierarchy, target selection hierarchy, and active hierarchy, then the functionality is enhanced, but the complexity of navigating through these hierarchies increases
Solution Approach 1:
The cooperative functions are segmented into three distinct hierarchies: menu hierarchy for selecting functions, target selection hierarchy for choosing specific targets, and active hierarchy for indicating performed situations. This segmentation resolves the contradiction by organizing complex functionality into manageable, intuitive layers that can be navigated systematically using the physical button set.
Solution Approach 2:
The system adds a hierarchical dimension to the function selection process, allowing users to navigate through multiple levels (menu → target selection → active state) using the same physical button set. This dimensional approach enables versatile functionality while maintaining consistent and intuitive operation methods across all levels.
3Ease of operation
If voice search is integrated into the target selection hierarchy, then the ease of use is improved, but the complexity of the control system increases
Solution Approach 1:
The physical button set acts as an intermediary that can trigger voice search functionality within the target selection hierarchy. This resolves the contradiction by providing a simple physical interface that initiates the more complex voice-based interaction, combining the simplicity of physical buttons with the ease of voice input when needed.
Solution Approach 2:
The system replaces purely mechanical button operations with voice-based input for target selection in certain contexts. This substitution improves ease of use by allowing hands-free operation while the underlying control system manages the complexity of integrating both mechanical and voice-based interaction modes.
Data Source
AI summary
A mobile device to be in cooperation with a vehicle selects and performs one of cooperative functions, acquires upward, downward, leftward, and rightward instructions from the vehicle, generates a sound output toward a driver, and acquires a voice input from the driver. The plurality of cooperative functions are classified into a menu hierarchy, a target selection hierarchy, and an active hierarchy. The mobile device transitions from the menu hierarchy to the target selection hierarchy and from the target selection hierarchy to the active hierarchy in the cooperative functions, based on an instruction in one specific direction of the upward, downward, leftward, and rightward instructions, and transitions to a voice search in the target selection hierarchy, based on an instruction in the specific direction.