Relative Position Detection Using IR Tags and Sensors
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Solution Overview
Problem
Gesture recognition systems face challenges in accurately interpreting user gestures due to variations in how gestures are performed, requiring precise sensor orientation and a defined gesture input volume to avoid misinterpretation of actions.
Innovation Solution
The use of tags with identifying codes and IR sensors to determine the relative position between enclosures, allowing the system to focus on a specific gesture input volume and accurately detect gestures, such as by placing tags on enclosures like keyboards and using IR sensors to generate data for processing by a controller to determine the gesture volume.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the sensor has a large field of view, then the sensor can detect gestures from various positions, but the gesture detection accuracy decreases due to restricted volume definition
Solution Approach 1:
The patent applies local quality by defining a specific gesture input volume within the sensor's field of view where gestures are expected to occur. This volume is determined based on the relative position between the display enclosure and first enclosure (such as keyboard), allowing the sensor to focus detection resources on the relevant spatial region while maintaining adaptability across different device configurations.
Solution Approach 2:
The gesture input volume is dynamically adjusted based on the detected relative position between enclosures. As the keyboard or display moves to different positions, the defined gesture volume automatically updates to maintain optimal detection accuracy, enabling the system to adapt to varying spatial configurations while preserving measurement precision.
2Ease of operation
If the sensor is separate from the computing device, then the sensor can be placed in optimal position, but the relative position between sensor and device becomes variable requiring continuous adjustment
Solution Approach 1:
The system employs self-service by using the sensor to automatically detect the relative position between the display enclosure and first enclosure, then using this information to dynamically define the gesture input volume. This eliminates the need for manual position adjustment mechanisms, as the system automatically adapts to the current spatial configuration.
Solution Approach 2:
The gesture input volume parameters are dynamically changed based on the detected relative position between enclosures. The system modifies the spatial boundaries of the gesture detection volume according to the actual physical configuration, allowing flexible sensor placement without requiring complex adjustment mechanisms.
3Ease of operation
If gestures are performed with different hand sizes and arm lengths, then user comfort is improved, but gesture interpretation accuracy decreases due to variable gesture volumes
Solution Approach 1:
The system dynamically adjusts the gesture input volume based on the detected relative position between the display and keyboard, which indirectly accounts for different user configurations. This allows users to perform gestures with varying hand sizes and arm lengths while maintaining interpretation accuracy through adaptive volume definition.
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
This approach enhances the accuracy of gesture recognition by ensuring the sensor captures gestures within a defined volume, reducing the likelihood of misinterpretation and improving user interaction with computing devices.
Implementation Method 1
A sensor on the display enclosure may detect the tag location and generate sensor data
Data Source
AI summary
A computing device can include a first enclosure and a display enclosure. A tag can be on the first enclosure. A sensor on the display enclosure can detect the tag location and generate sensor data. A controller can determine from the sensor data the relative position between the display enclosure and the first enclosure.