Vehicle Touch Screen Navigation Control via Finger Count
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Solution Overview
Problem
Existing vehicle touch screen displays are not optimized for drivers and occupants, requiring familiarity with complex touch screen operations that can be difficult to execute quickly and may increase costs and reduce durability.
Innovation Solution
A vehicular display system with a controller that includes a touch detector, navigation mode determiner, and image navigation controller, allowing users to navigate images, such as maps, by detecting the number of fingers touched and their simultaneous movement direction and distance from a predetermined area on the screen, enabling simplified navigation modes like scrolling and zooming.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If existing touch screen enabled operations are implemented, then the display provides touch screen functionality, but the operations require complex movements that are difficult for a driver to execute in a brief time period
Solution Approach 1:
The touch screen operations are segmented into distinct gesture types (single-tap, double-tap, swipe, pinch) that can be quickly recognized and executed. Each gesture type corresponds to a specific function, allowing drivers to perform operations with simple, predefined movements rather than complex sequences.
Solution Approach 2:
The system provides predictive text input and pre-configured navigation options that anticipate driver needs. Common destinations and functions are pre-loaded or suggested based on recent usage patterns, allowing drivers to select options with minimal input rather than typing or navigating through multiple menus.
2Adaptability or versatility
If existing touch screen enabled operations are implemented, then the display provides touch screen functionality, but the operations require a level of familiarity with the operation of touch screen user interfaces which may not be possessed by all vehicle users
Solution Approach 1:
The system provides visual feedback through on-screen buttons, icons, and highlighted options that clearly indicate available functions and current selection states. Audio feedback and haptic responses confirm successful input, allowing users to understand system responses without needing prior familiarity with touch screen conventions.
Solution Approach 2:
The interface uses color coding to indicate different states and functions - such as green for go/selected, red for stop/unselected, and yellow for warnings or intermediate states. This visual language transcends language barriers and requires no learning, as colors universally convey meaning.
3Adaptability or versatility
If existing touch screen enabled operations are implemented, then the display provides touch screen functionality, but the operations may require a complex and expensive touch screen enabled displayed, which may increase the cost and/or reduce the durability of the touch screen enabled display
Solution Approach 1:
A single touch screen display performs multiple functions - navigation, entertainment, vehicle settings, and communication - through a unified interface. This eliminates the need for separate control panels, buttons, and displays for each function, reducing overall system complexity while maintaining versatility.
Solution Approach 2:
The system includes automatic features such as adaptive brightness adjustment based on ambient light, automatic map routing based on destination input, and voice-activated commands that eliminate the need for manual configuration of numerous settings, reducing the effective complexity users must manage.
Data Source
AI summary
A vehicle display system includes a display having a display screen which displays an image and provides a touch screen user interface. A controller of the display includes a touch detector which detects a number of fingers touched to a predetermined portion of the display screen, as well as a direction and distance of movement of the number of fingers away from the predetermined portion of the display screen. A navigation mode determiner of the controller determines a navigation mode based on the detected number of fingers. A navigation feature determiner of the controller determines a navigation direction and navigation rate based on the detected direction and distance the number of fingers is moved. An image navigation controller of the controller controls the display to navigate the image displayed on the display screen according to the determined navigation mode, navigation direction, and navigation rate.