Gesture Interface Module with Proximity Zone Segmentation
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Solution Overview
Problem
Existing interface modules for vehicle control, such as navigation assistants and interior lighting, are limited in their functionality as gestures detected by gesture sensors often have a single command value independent of execution position, leading to redundant commands and conflicts between gesture and pressure sensor inputs.
Innovation Solution
An interface module that combines a gesture sensor with a proximity sensor, allowing the detection space to be divided into multiple zones by adjusting gesture and proximity boundaries based on sensor states, enabling more precise command execution and conflict resolution through adaptive control unit operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a gesture sensor is used to detect gestures in a detection space, then gesture control functionality is enabled, but the command value is single and independent of execution position leading to redundant commands
Solution Approach 1:
The detection space is segmented into multiple zones (first gesture zone, second gesture zone, third gesture zone) based on distance from the interface module. Each zone corresponds to different gesture types and command values, allowing the system to distinguish between gestures performed at different positions and assign appropriate commands, thereby eliminating redundant commands.
2Adaptability or versatility
If gesture sensor and pressure sensor are combined in the same interface module, then the number of controlled functions is increased, but conflicts occur between gesture and pressure sensor inputs
Solution Approach 1:
The system performs preliminary detection using the proximity sensor to determine whether a hand is approaching the interface module before the gesture sensor fully processes gesture commands. This preliminary action allows the system to prepare for potential pressure sensor activation and prevent conflicts by establishing a clear sequence of sensor activation based on distance.
3Measurement precision
If the detection space is divided into multiple zones using simple equipment, then zone detection capability is improved, but device complexity increases
Solution Approach 1:
The proximity sensor serves multiple functions: it detects both the presence of a hand for zone determination and triggers the activation of the gesture sensor and pressure sensor. This multi-functionality allows the system to create multiple detection zones without proportionally increasing device complexity, as one sensor (proximity sensor) performs several critical roles.
4Speed
If sensors operate continuously to provide timely detection, then detection responsiveness is improved, but energy consumption increases
Solution Approach 1:
The proximity sensor operates continuously to periodically assess hand presence, while the gesture sensor and pressure sensor are activated only when needed (when hand presence is detected). This periodic activation pattern maintains detection responsiveness by keeping the proximity sensor running while significantly reducing overall energy consumption by keeping other sensors in standby mode during idle periods.
Data Source
Figure 1~2a
Figure 2b~2c
Figure 3~4
AI summary
The invention relates to an interface module, comprising:- a gesture sensor (7), able to detect and interpret the execution of a gesture by a user in a detection space (E), - a control unit (11) configured to execute at least one command as a function of the gesture detected and interpreted, - a proximity sensor (9), configured to determine whether the gesture is performed in a proximal position with respect to a second predefined distance, defining a boundary of proximity (F3) between a zone of proximal position (zpp) and a zone of distal position (zpd).