External Projection Navigation Indicators for Wearable Devices
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Solution Overview
Problem
Existing wearable devices for navigation face challenges in providing clear navigation information, especially for drivers, due to the small size of the display, which can lead to driver distraction and safety hazards.
Innovation Solution
A method and apparatus for displaying directional visual indicators external to a wearable device during navigation, using directional lights or projections to indicate the direction of travel, which can be adjusted in intensity and pattern to signal changes in direction or emergency situations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If navigation information is displayed on the wearable device screen, then navigation guidance is provided, but the small display size causes driver distraction and safety hazards
Solution Approach 1:
The patent introduces an intermediary projection system that transfers navigation information from the wearable device to the external environment. The projection module projects directional visual indicators onto surfaces in the driver's field of view, serving as an intermediary between the small display and the driver, thereby providing clear navigation guidance without requiring the driver to read small text on the device screen.
Solution Approach 2:
The patent transitions navigation information from a two-dimensional screen display to a three-dimensional spatial projection. By projecting directional indicators onto surfaces in the environment (such as the road or surrounding areas), the system creates visual cues in the driver's field of view, effectively adding a spatial dimension to navigation information delivery and eliminating the need to read small display text.
2Loss of information
If directional visual indicators are projected externally, then navigation clarity is improved, but device complexity increases
Solution Approach 1:
The patent integrates the projection module into the existing wearable device architecture, enabling the same device to perform multiple functions: traditional display, projection, and navigation guidance. The processor controls both the display module and projection module, allowing the device to adaptively choose the appropriate output mode based on navigation requirements, thereby reducing overall system complexity through multi-functionality.
Solution Approach 2:
The patent divides the navigation information delivery into separate functional components: a display module for traditional screen output and a projection module for external projection. This segmentation allows each module to be optimized for its specific function and enables the system to selectively activate the projection module only when external directional indicators are needed, managing complexity through functional separation.
3Measurement precision
If multiple directional indicators are displayed for different directions, then navigation accuracy is improved, but energy consumption increases
Solution Approach 1:
The patent implements dynamic control of the projection module based on real-time navigation status. The processor determines which directional indicators to project by analyzing the user's current location, destination, and movement direction. Only the necessary projection modules are activated for the current navigation context, rather than continuously operating all projection capabilities, thereby reducing energy consumption while maintaining navigation accuracy.
Solution Approach 2:
The patent adjusts the operational parameters of the projection module based on navigation requirements. The system changes projection parameters such as intensity, duration, and activation status dynamically. When the user needs directional guidance, the projection module activates with appropriate parameters; when not needed, it remains inactive or operates at minimal power, optimizing the balance between navigation accuracy and energy consumption.
Data Source
AI summary
This disclosure provides systems, methods, and apparatus, including computer programs encoded on computer-readable media, for displaying directional visual indicators external to a wearable device for navigation. In some aspects, a wearable device may receive navigation signals while the wearable device is in a navigation mode. The navigation signals may indicate a direction of travel. The wearable device may display a first directional visual indicator corresponding to the direction of travel. The first directional visual indicator may be displayed external to the wearable device indicating the direction of travel is a first direction. The first directional visual indicator may be a directional light or a directional projection displayed external to the wearable device in the direction of travel. If the direction of travel changes from the first direction to a second direction, the wearable device may display a second directional visual indicator indicating the direction of travel is the second direction.