Adaptive Haptic Actuator Control via Dynamic Parameter Adjustment
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Solution Overview
Problem
Existing terminal devices provide relatively simple and limited haptic effects due to the simplicity of vibration response manners in actuators, resulting in a lack of diversity in haptic experiences for users.
Innovation Solution
A vibration control method that involves obtaining target effect parameters from a vibration effect design model based on a haptic effect demand index, generating a vibration control signal, and controlling an actuator to vibrate accordingly, thereby adapting to different haptic effect demand scenarios and enhancing the diversity of haptic effects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a simple vibration response manner is used in the actuator, then the device complexity is reduced, but the haptic effect diversity is limited
Solution Approach 1:
The patent applies dynamics by making the vibration control model adjustable and adaptable to different scenarios. The system dynamically selects and adjusts vibration parameters (amplitude, frequency, waveform) based on application requirements, transforming a static simple vibration response into a dynamic multi-scenario responsive system without increasing hardware complexity
Solution Approach 2:
The patent implements parameter changes by modifying vibration characteristics (amplitude, frequency, duration, waveform shape) through software control rather than hardware changes. The vibration control model adjusts these parameters dynamically to create diverse haptic effects from a single actuator, resolving the contradiction between simple device structure and diverse haptic effects
2Adaptability or versatility
If multiple vibration response manners are implemented to provide diverse haptic effects, then the haptic effect diversity is improved, but the device complexity increases
Solution Approach 1:
The patent applies universality by designing a single vibration control model that can perform multiple haptic functions across different scenarios. The model universally handles various vibration patterns (continuous, intermittent, increasing, decreasing, alternating) through a unified control framework, avoiding the need for separate dedicated circuits for each haptic effect type
Solution Approach 2:
The system implements self-service through automatic scenario recognition and parameter adjustment. The vibration control model automatically selects appropriate vibration patterns and parameters based on the current application scenario without requiring manual configuration or complex external control circuits, reducing overall system complexity while maintaining haptic effect diversity
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
The method enables adaptive design of vibration control models for actuators, ensuring diversity and adaptability of haptic effects, and providing users with a more complex and satisfying haptic feedback experience.
Implementation Method 1
an actuator to vibrate based on the vibration control signal
Data Source
AI summary
A vibration control method, a vibration control device, and a non-transitory computer-readable storage medium are provided. Target effect parameters are obtained in a preset vibration effect design model with reference to a haptic effect demand index, effect parameters in the vibration effect design model including a granularity parameter, a sharpness parameter and a hardness parameter. A vibration control signal is generated based on the target effect parameter. The actuator is controlled to vibrate based on the vibration control signal. With the implementations of the present disclosure, the vibration control models of the actuator can be adaptively designed based on different haptic effect demand scenarios, thereby ensuring the diversity of haptic effects and the adaptability to the scenarios. A variety of perception factors are considered in the vibration effect of the actuator, thereby providing the user with a more complex haptic feedback experience.