Radar-Sensed Deformable Interaction Body for Gesture Distinction
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Solution Overview
Problem
Conventional interaction devices, such as deformable stuffed toys, struggle to distinguish between a user bringing their hand close or merely touching the exterior and actually deforming it, making it difficult to detect various types of user operations.
Innovation Solution
An interaction device comprising a deformable exterior body with a radar sensor and a detection target object inside, which moves with the exterior body's deformation, processes radar sensor detection results to differentiate user interactions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the exterior body is made deformable to enrich user experience, then the user experience is improved, but the ability to distinguish between different user operations deteriorates
Solution Approach 1:
A radar sensor is introduced as an intermediary detection mechanism between the user's hand and the deformable exterior body. The radar sensor emits electromagnetic waves that reflect off the exterior body and any objects inside it, allowing the system to detect changes in reflection patterns that correspond to different types of user interactions without requiring rigid structural elements.
Solution Approach 2:
The patent replaces traditional mechanical sensing mechanisms (such as pressure sensors or switches embedded in the exterior body) with a radar-based electromagnetic detection system. This substitution allows the deformable exterior body to maintain its soft, flexible characteristics while still providing reliable detection of user operations through electromagnetic wave reflection analysis.
2Difficulty of detecting and measuring
If a radar sensor is added to detect user operations, then the detection capability is improved, but the device complexity increases
Solution Approach 1:
The radar sensor serves multiple functions simultaneously: it detects the presence of a user's hand, determines whether the hand is touching the exterior body, and identifies different types of interactions (such as pressing or rubbing) by analyzing changes in the reflected electromagnetic wave patterns. This multi-functionality reduces the need for multiple separate sensors or complex processing systems.
Solution Approach 2:
The system detects different user operations by monitoring changes in parameters of the reflected radar signals, such as reflection intensity, frequency shifts, or phase changes. By analyzing these parameter variations rather than requiring complex mechanical structures, the system achieves sophisticated detection capability with relatively simple hardware.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables the detection and distinction of various user operations with a simple configuration, allowing for precise interaction recognition.
Implementation Method 1
a radar sensor, and configured to detect a location of a target within a detection range that is predetermined and extended from the one inner surface
Data Source
AI summary
Disclosed is an interaction device that includes an exterior body, a radar sensor, and a detection target object. The exterior body is deformable. The radar sensor is disposed on the side of one inner surface of the exterior body, and configured to detect the location of a target within a detection range that is predetermined and extended from the one inner surface, including the inside of the exterior body, to the outside of an exterior body surface opposite the one inner surface. The detection target object is disposed inside the exterior body and within the detection range of the radar sensor, and configured to move according to the deformation of the exterior body.