Wearable Gesture Control Using Signal Angles for Device Selection
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Solution Overview
Problem
In environments with multiple devices, it is challenging to intuitively determine which device a user intends to control using gestures due to ambiguity in device identification.
Innovation Solution
A wearable device that includes a communication interface, memory, and a processor to obtain signal strength information and angles between itself, an external device, and an external wearable device, identifying the intended device based on threshold values and user gestures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If gesture-based control is used to manipulate devices, then user convenience and intuitive operation are improved, but device identification accuracy deteriorates when multiple devices are present
Solution Approach 1:
The patent introduces wearable devices as intermediary components that assist in device identification. The wearable device worn on the finger acts as a mediator between the user's pointing gesture and the control system, providing additional spatial information through its position relative to the target device. This intermediary helps resolve the ambiguity that arises when multiple devices are present in the environment.
Solution Approach 2:
The patent adds a new dimension to device identification by incorporating the spatial relationship between wearable devices and target devices. Instead of relying solely on gesture recognition, the system uses the three-dimensional position information from multiple wearable devices to calculate angles and determine which device the user intends to control. This dimensional addition resolves the identification ambiguity.
2Measurement precision
If multiple wearable devices are used to improve device identification, then identification accuracy is improved, but system complexity increases
Solution Approach 1:
The patent makes existing wearable devices multi-functional by enabling them to serve both their original purpose and as identification aids for device control. The wearable devices continue to function as normal wearables while simultaneously providing position information for angle calculation and device identification. This eliminates the need for separate dedicated identification devices, thereby managing system complexity.
Solution Approach 2:
The system uses the wearable devices' own position information and the position information of other wearable devices to perform identification. Each wearable device contributes its spatial data, and the system automatically calculates the angles and determines the target device without requiring additional external infrastructure or complex manual configuration.
3Measurement precision
If angle calculation based on signal strength is used to identify target device, then device identification accuracy is improved, but computational requirements and processing time increase
Solution Approach 1:
The system pre-calculates and stores position information of wearable devices and target devices. When a control gesture is detected, the system retrieves these pre-stored position data and performs angle calculation using simple geometric formulas rather than complex real-time measurements. This preliminary preparation significantly reduces processing time while maintaining identification accuracy.
Solution Approach 2:
The patent transforms the identification problem from complex multi-parameter analysis to a simplified angle-based determination. By changing the identification parameter from multiple signal characteristics to a single angle value calculated from position coordinates, the system reduces computational complexity and processing time while maintaining or improving identification accuracy.
Data Source
AI summary
Provided are a wearable device and a method of controlling same. The wearable device includes: a communication interface; memory storing instructions; and a processor configured to: obtain strength information regarding a strength of a first signal transmitted by an external device; obtain strength information regarding a strength of a second signal transmitted by an external wearable device; receive, from the external wearable device, strength information regarding a strength of a third signal received by the external wearable device; obtain, based on the strength information for the first signal, the second signal, and the third signal, information on an angle formed between a line between the wearable device and the external device and a line between the external wearable device and the external device; and identify whether the external device is a device to be controlled based on whether the angle is less than or equal to a threshold value.