Mobile Terminal Motion Detection Using Multi-Sensor Fusion
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Solution Overview
Problem
Current mobile terminals face challenges in accurately detecting user motions, leading to difficulties in activating specific functions efficiently, as existing methods are not precise enough to determine user intentions effectively.
Innovation Solution
The implementation of a mobile terminal with a sensing unit that includes acceleration, gyro, and geomagnetic sensors to detect motion patterns, allowing for short-range communication with other terminals to authenticate and activate functions based on synchronized motion patterns and signal strength, thereby enhancing motion detection accuracy and function activation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a single sensor is used to detect user motion, then the device complexity is low, but the motion detection precision is insufficient
Solution Approach 1:
The patent combines multiple sensors (acceleration sensor, gyro sensor, and geomagnetic sensor) into an integrated sensing unit. These sensors work together to detect motion patterns more accurately than a single sensor could, resolving the contradiction between measurement precision and device complexity by merging complementary sensing capabilities.
Solution Approach 2:
The sensing unit is segmented into multiple specialized sensors, each responsible for detecting specific aspects of motion (acceleration, rotation, magnetic field orientation). This segmentation allows each sensor to excel at its specific function while collectively achieving comprehensive and precise motion detection.
2Measurement precision
If motion detection algorithms are simplified, then the processing speed is fast, but the accuracy of determining user intention is low
Solution Approach 1:
The system pre-saves multiple motion patterns in advance. When detecting user motion, the system compares the detected pattern against these pre-saved patterns to quickly determine user intention. This preliminary preparation of motion patterns enables fast recognition without requiring complex real-time analysis, resolving the contradiction between accuracy and processing time.
3Reliability
If short-range communication is added for authentication, then the security is improved, but the device complexity increases
Solution Approach 1:
The mobile terminal utilizes its existing short-range communication capability (such as Bluetooth) which serves multiple functions including data transmission and authentication. By making this existing component multi-functional, the system achieves improved security without proportionally increasing device complexity, as the same hardware infrastructure supports both communication and authentication purposes.
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 solution enables more accurate analysis of user motions and efficient activation of functions, improving user convenience by linking specific functions to detected motion patterns and maintaining secure authentication through synchronized motion and signal strength verification.
Implementation Method 1
a sensing unit configured to detect a motion of the mobile terminal
Implementation Method 2
a sensing unit configured to detect a motion of the mobile terminal
Implementation Method 3
a sensing unit configured to detect a motion of the mobile terminal
Data Source
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AI summary
A mobile terminal and controlling method thereof are disclosed, which facilitates a terminal to be used in further consideration of user's convenience. According to at least one of embodiments of the present disclosure, provided is a method of controlling an operation of a specific mobile terminal by forming a wireless communication group through a short range communication and then synthesizing analyses of motion patterns detected through mobile terminals belonging to the wireless communication group. Accordingly, in performing a function through a motion of each of a plurality of mobile terminals belonging to a single wireless communication group, the present disclosure activates a function more accurately and improving accessibility to the function activation, thereby enhancing user's convenience.