Vibration-Based Control for Electric Fans
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Solution Overview
Problem
Current electrical fans rely on keyboards or remote controls for human-machine interaction, which are often cumbersome and difficult to use, especially since remote controls are easily misplaced and have small buttons, limiting user convenience.
Innovation Solution
A method and device that record and analyze vibration trajectory information to determine if a vibration is caused by a user's trigger action, allowing for interactive control of intelligent devices like electric fans without the need for traditional controls, by distinguishing between damping vibrations and other types of vibrations through amplitude analysis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional keyboards or remote controls are used for human-machine interaction, then the device can be controlled, but the operation becomes cumbersome and user convenience deteriorates
Solution Approach 1:
The patent replaces mechanical control systems (keyboards and remote controls) with a vibration-based detection system. The accelerometer sensor detects vibration trajectories generated by user actions on the device housing, converting mechanical vibrations into control signals. This eliminates the need for separate mechanical control interfaces while improving ease of operation.
Solution Approach 2:
The device uses its own housing and structure as the control interface. Users can directly interact with the device body through tapping or pressing actions, and the device itself detects and processes these vibrations through its built-in accelerometer and processing circuitry. This self-service approach eliminates the need for external remote controls or separate keyboards.
2Ease of operation
If vibration-based control is implemented, then user convenience is improved, but false triggers from accidental touches or environmental influences increase
Solution Approach 1:
The patent utilizes mechanical vibration characteristics to distinguish between intentional user actions and false triggers. By analyzing the vibration trajectory, frequency, and amplitude patterns detected by the accelerometer, the system can identify characteristic vibration signatures of deliberate user actions versus random environmental vibrations or accidental touches.
Solution Approach 2:
The system implements feedback through the processing circuitry that continuously monitors vibration patterns and determines whether detected vibrations correspond to intentional user actions. The processing unit analyzes vibration trajectory information and provides feedback control by selectively responding only to validated action patterns, filtering out false triggers while maintaining responsiveness to genuine user input.
3Measurement precision
If vibration trajectory analysis is used to distinguish user actions, then action recognition accuracy is improved, but the processing complexity increases
Solution Approach 1:
The patent applies partial action by focusing the vibration analysis on specific key parameters (trajectory, amplitude, frequency) rather than processing all possible vibration characteristics. This selective approach achieves sufficient action recognition accuracy without requiring overly complex processing algorithms, balancing measurement precision with processing simplicity.
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 intuitive and accurate user interaction with electric fans by recognizing user-triggered vibrations, improving user experience and eliminating the need for cumbersome controls, while reducing false triggers from accidental touches or environmental influences.
Implementation Method 1
collecting vibration trajectory information for vibrations in a preset direction by using an accelerometer
Implementation Method 2
determining whether the vibration is a damping vibration based on the vibration trajectory information; and in response to determining that the vibration is a damping vibration, determining that the vibration is caused by a user's trigger action
Data Source
AI summary
The present disclosure relates to methods and devices for identifying an action. In some embodiments, a method for identifying an action includes: recording vibration trajectory information, wherein the vibration trajectory information corresponds to vibration of at least a portion of an intelligent device from a start of a vibration event to stabilization of the vibration event; determining whether the vibration is a damping vibration based on the vibration trajectory information; and in response to determining that the vibration is a damping vibration, determining that the vibration is caused by a user's trigger action, or in response to determining that the vibration is not a damping vibration, determining that the vibration is not caused by the user's trigger action.