Vehicle Gesture Control with Positioning Feedback
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Solution Overview
Problem
Existing gesture-controlled operator control systems for motor vehicles lack reliability and user assistance in accurately positioning body parts within the sensing region, leading to potential operating errors.
Innovation Solution
An operator control system that uses a sensing device to detect body parts and gestures within a three-dimensional sensing region, providing visual and audible feedback through a signal apparatus to confirm correct positioning and gesture recognition, and adapting the operator control space based on user profiles for enhanced usability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a sensing device is used to detect body parts in a sensing region, then the operator control system can be operated without physical contact, but the reliability of gesture recognition decreases due to lack of user assistance in positioning
Solution Approach 1:
The patent implements a feedback mechanism where a signal apparatus provides visual or audible acknowledgment to the user when a body part is detected in the operator control space. This feedback loop allows the user to adjust their positioning based on the acknowledgment signal, thereby improving the reliability of gesture recognition while maintaining contactless operation.
Solution Approach 2:
The patent introduces an intermediary acknowledgment signal between the sensing device and the user. This intermediary provides real-time information about whether the user's body part is in the correct position, mediating the interaction between the user and the gesture recognition system to improve reliability without requiring physical contact.
2Ease of operation
If the sensing region is made large to accommodate user movement, then ease of positioning is improved, but the precision of gesture detection decreases
Solution Approach 1:
The patent divides the sensing region into two distinct zones: a larger sensing region for initial body part detection and a smaller operator control space within it for precise gesture recognition. This segmentation allows the system to first guide the user to the general area (easy positioning) and then provide precise feedback when the user enters the critical control zone (precise detection).
Solution Approach 2:
The patent applies different functional qualities to different parts of the sensing region. The outer sensing region has the quality of being easily accessible and visible, while the inner operator control space has the quality of high measurement precision for gesture detection. This local differentiation resolves the contradiction between ease of positioning and detection precision.
3Reliability
If visual or audible feedback is provided to confirm correct positioning, then the reliability of operation increases, but the device complexity increases
Solution Approach 1:
The patent makes the control device multi-functional by equipping it with both sensing capabilities and signal output capabilities. The control device not only detects gestures but also provides acknowledgment signals, eliminating the need for separate feedback hardware and thereby reducing overall system complexity while maintaining high reliability.
Solution Approach 2:
The patent merges the sensing function and the feedback function into a single integrated system. The control device combines the sensing device and signal apparatus, allowing it to both detect body parts and provide acknowledgment signals. This merging reduces device complexity by eliminating redundant components while improving operational reliability through integrated feedback.
Data Source
AI summary
A sensing device sensing at least one body part of a user when the body part is arranged in a sensing region of the sensing device is included in an operator control system that also includes a control device controlling a signal apparatus of the operator control system. The sensing device checks whether the body part sensed in the sensing region is in an operator control space that forms a sub-region of the sensing region. The control device actuates the signal apparatus that is used outside the operator control space to output an acknowledgment when the sensing device senses that the body part is inside the operator control space.