Vehicle Head-Mounted Display Gesture-Based Volume Control
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Solution Overview
Problem
Existing head-mounted displays impair user immersion and cause motion sickness when used in vehicle cabins due to the user's inability to see the scenery outside the vehicle and the need for manual volume adjustment.
Innovation Solution
A head-mounted display system that includes a vehicle interior camera to detect user gestures for volume control, integrating with a vehicle exterior camera for image display and microphones for sound input, allowing automatic adjustment of sound volumes based on detected gestures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a head-mounted display is used in a vehicle cabin, then the user can see the scenery outside the vehicle through the display, but the user cannot see the actual exterior environment, causing motion sickness and impaired immersion
Solution Approach 1:
The patent combines the head-mounted display showing exterior scenery with a vehicle interior camera to capture the user's actual surroundings. The system merges these two visual streams to create an augmented reality overlay where virtual elements are superimposed on the real-world view, allowing users to see both the display content and actual environment simultaneously, thereby reducing motion sickness while maintaining immersion
Solution Approach 2:
The vehicle interior camera acts as an intermediary device that captures the user's real-world environment and feeds this information back to the head-mounted display. This intermediary mechanism enables the system to adjust the display content based on the user's actual surroundings, creating a balanced visual experience that reduces motion sickness while preserving immersion
2Ease of operation
If manual volume adjustment is required for the speaker, then the user can control sound volume, but the user must divert attention from the display content to adjust the volume
Solution Approach 1:
The system implements self-service volume control by using the vehicle interior camera to detect the user's hand gestures and automatically adjusting the speaker volume accordingly. The user无需 manually touching volume controls while driving; instead, their natural hand movements are captured and translated into volume adjustments, allowing them to maintain focus on the display content while still controlling audio output
Solution Approach 2:
The patent replaces the mechanical volume adjustment mechanism with an optical detection system. Instead of requiring physical contact with volume controls, the system uses the vehicle interior camera to detect hand gestures and translates these visual signals into automated volume changes, eliminating the need for manual intervention and keeping the user's attention on the display
Data Source
AI summary
A control system includes: a head-mounted display that is worn by a user riding in a vehicle, and provides the user with at least a display image corresponding to an image acquired by a vehicle exterior camera that is provided in the vehicle and captures an image of the periphery of the vehicle; a detection unit that detects a gesture performed by the user, based on an image acquired by a vehicle interior camera that is provided in the vehicle and captures an image of the interior of a vehicle cabin; and a volume control unit that executes control of adjusting the volume of a speaker provided in the head-mounted display based on the gesture detected by the detection unit.