Vehicle Navigation Display Proximity Adaptation
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Solution Overview
Problem
Navigation system displays in vehicles pose challenges due to moving objects on the map, increasing eye-hand coordination difficulties and driver distraction, as objects such as POIs and roads change positions, making it hard for drivers to select them accurately and safely.
Innovation Solution
A display method that reduces the rate of change in the graphic representation by detecting user proximity, allowing the map to remain stationary when the user approaches, with the vehicle's position changing, thus stabilizing POIs and roads, enabling easier selection and reducing driver distraction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the map representation continuously updates the position of objects (POIs, roads) as the vehicle moves, then the geographical accuracy is improved, but the eye-hand coordination difficulty increases and driver distraction worsens
Solution Approach 1:
The system dynamically switches between two display modes: a first display mode during vehicle movement that updates object positions to maintain geographical accuracy, and a second display mode during user interaction that freezes object positions to improve eye-hand coordination. This dynamic adaptation resolves the contradiction by adjusting the display behavior based on the operational context.
Solution Approach 2:
The system periodically updates the map representation at defined intervals rather than continuously, creating discrete update cycles. This periodic action maintains sufficient geographical accuracy while reducing the visual complexity and improving selectability during interaction phases, thereby addressing the contradiction between accuracy and ease of operation.
2Reliability
If the map objects move continuously on the display as the vehicle travels, then the real-time position information is improved, but the selection accuracy of objects by the driver deteriorates
Solution Approach 1:
The display system dynamically adjusts its update behavior based on whether the driver is in navigation mode or selection mode. During selection mode, object movement is suspended or slowed, allowing the driver to accurately select stationary targets. When navigation mode is active, continuous updates resume to provide real-time position information, thus resolving the contradiction between reliability and selection accuracy.
Solution Approach 2:
The system detects driver approach to the operating unit in advance and proactively switches to the second display mode that freezes object positions before the driver begins selection. This preliminary action ensures that objects remain stationary during the intended selection period, improving selection accuracy while maintaining real-time updates during non-interaction periods.
3Reliability
If the map representation updates frequently to reflect vehicle movement, then the current position display is improved, but the driver distraction increases
Solution Approach 1:
The system implements periodic updates at optimized intervals rather than continuous real-time updates. This approach maintains sufficient current position display reliability while reducing the frequency of visual changes that cause driver distraction, particularly during interaction phases where updates are minimized or suspended.
Solution Approach 2:
The update frequency dynamically adapts based on the operational state: higher update rates during pure navigation phases when the driver needs current position information, and reduced or suspended updates during interaction phases when the driver is already focused on the display. This dynamic adjustment balances reliability requirements with distraction reduction.
Data Source
AI summary
A display system includes a display for the graphic representation of changeable information, an operating unit for the control of the displayed information by a user, a proximity sensor which is arranged to detect an approach of the user to the operating unit, and a control unit. The control unit is coupled to the display, the operating unit and the proximity sensor. The control unit is arranged such that, as a function of an approach of the user to the operating unit, it alters the representation of the changeable information, such that a time rate of display change of the graphic representation of the changeable information is reduced.