3D Vehicle Viewing Angle Switching for Stable Low-Speed Display
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Solution Overview
Problem
Frequent switching between driving and vertical top-down viewing angles in vehicles with assisted driving at low speeds due to obstacle detection leads to poor user experience, including dizziness and impaired visibility.
Innovation Solution
Implementing a vehicle speed threshold to determine when to switch the 3D scene viewing angle from top-down to driving view, reducing the frequency of angle changes by using a threshold-based approach and adjusting the viewing angle to a slightly top-down view when obstacles are present.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the viewing angle is switched to vertical top-down when obstacles are detected at low speed, then obstacle observation is improved, but viewing angle switching frequency increases causing user dizziness and poor display effect
Solution Approach 1:
The patent changes the parameter used for viewing angle switching from obstacle detection to vehicle speed threshold. By monitoring vehicle speed rather than obstacle presence, the system avoids frequent switching during low-speed congestion while still providing appropriate viewing angles when speed increases, thereby reducing user dizziness and improving display stability.
Solution Approach 2:
Instead of switching to top-down view when obstacles are present (conventional approach), the patent inverts the logic by switching to driving view when speed exceeds the threshold. This inversion prevents frequent switching during low-speed obstacle scenarios while maintaining obstacle visibility through the top-down view.
2Loss of information
If viewing angle switching is triggered by obstacle detection at low speed, then obstacle visibility is enhanced, but display stability deteriorates due to frequent switching
Solution Approach 1:
The patent replaces obstacle detection as the switching trigger with vehicle speed threshold monitoring. This parameter change ensures that viewing angle remains stable during low-speed obstacle scenarios, preventing display flickering and maintaining stability, while still allowing appropriate view changes when vehicle speed increases.
3Reliability
If the viewing angle switches frequently between driving and top-down views, then obstacle monitoring is improved, but user experience deteriorates
Solution Approach 1:
The patent changes the control parameter from obstacle presence to vehicle speed threshold. This ensures that obstacle monitoring reliability is maintained through appropriate top-down view activation, while user experience is improved by eliminating frequent, unnecessary switching during low-speed congestion scenarios.
Data Source
AI summary
In a viewing angle switching method, when a speed of a vehicle is detected to be greater than or equal to a first threshold, a three-dimensional scene viewing angle of the vehicle can be switched from a top-down viewing angle to a first viewing angle. The first viewing angle is a driving viewing angle that forms a first included angle with a horizontal direction, and the first included angle is less than 90°. A vehicle speed threshold is set as a condition for restoring the three-dimensional scene viewing angle from the top-down viewing angle to the driving viewing angle, so that whether an obstacle is present around the vehicle is no longer a switching condition of viewing angle switching.