Wrist-Worn Screen Control Using Wearing Position Detection
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Solution Overview
Problem
Existing electronic devices, such as smartwatches, face inefficiencies due to decision errors in determining whether to turn the display screen on or off based on the user's wrist motion, particularly when worn on different hands, leading to reduced usability.
Innovation Solution
The method involves detecting a first motion parameter to determine the wearing position of the electronic device, using built-in gyroscopes and acceleration sensors to differentiate between left and right wrist wear, and setting preset conditions for screen activation or deactivation based on centripetal force parameters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the display screen is controlled to be on or off based on wrist motion state, then power consumption is reduced, but decision errors occur when determining screen state
Solution Approach 1:
The patent segments the motion detection process into two independent parts: wearing position detection (left/right wrist) and screen state detection (on/off). By using different motion parameters for each function (centripetal force for wearing position, acceleration for screen state), the system avoids decision errors that occur when a single detection method is used for both purposes.
Solution Approach 2:
The patent introduces centripetal force parameters as an intermediary to determine wearing position, which then informs the interpretation of acceleration data for screen state control. This intermediary step resolves the ambiguity in acceleration data by providing context about which wrist the device is worn on, thereby improving decision accuracy while maintaining power savings.
2Measurement precision
If motion parameters are used to determine wearing position, then screen control accuracy is improved, but device complexity increases
Solution Approach 1:
The patent makes the existing acceleration sensor multi-functional by using it for both wearing position detection (through centripetal force analysis) and screen state detection. This approach improves measurement precision without adding hardware complexity, as the same sensor serves multiple purposes through different analysis methods.
Solution Approach 2:
The patent changes the parameter analysis approach rather than adding new sensors. By analyzing acceleration data through different mathematical transformations (including centripetal force calculations), the system achieves higher wearing position detection accuracy while keeping the hardware configuration simple and unchanged.
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
Accurately determines the wearing position and corresponding screen states, enhancing user efficiency by ensuring correct screen activation or deactivation when the wrist is raised or lowered.
Implementation Method 1
using built-in gyroscopes and acceleration sensors to differentiate between left and right wrist wear
Implementation Method 2
using built-in gyroscopes and acceleration sensors to differentiate between left and right wrist wear, and setting preset conditions for screen activation or deactivation based on centripetal force parameters
Data Source
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AI summary
This application discloses a screen control method and apparatus, and an electronic device. The method is applied to an electronic device, and the method includes: detecting, by the electronic device, a first motion parameter of the electronic device; determining, by the electronic device, a wearing position of the electronic device based on the first motion parameter; and turning on, by the electronic device, a screen of the electronic device in a case that the wearing position is a first position and a second motion parameter of the electronic device meets a first preset condition, where the first preset condition matches the first position; or turning off the screen of the electronic device in a case that the wearing position is the first position and the second motion parameter of the electronic device meets a second preset condition, where the second preset condition matches the first position.