Adaptive Haptic Feedback for Motion-Compensated Alerts
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Solution Overview
Problem
Existing haptic feedback systems in mobile devices are ineffective during user activities that involve motion, as the sense of touch is diminished, leading to missed alerts due to reduced sensitivity.
Innovation Solution
A system that utilizes sensors to analyze motion and biofeedback data to generate adaptive haptic responses, synchronized with user activities, and sends signals to IoT devices to trigger actions based on sensor patterns, ensuring alerts are acknowledged even during motion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If static haptic feedback is used in mobile devices, then the device structure remains simple, but the haptic feedback effectiveness deteriorates during user motion activities
Solution Approach 1:
The patent implements dynamic haptic feedback by continuously monitoring motion sensor data (accelerometer, gyroscope, barometer) to detect user activity states and adjusting haptic alert characteristics in real-time based on detected motion patterns, transforming static haptic feedback into an adaptive system that responds to user motion
Solution Approach 2:
The system employs sensor feedback loops where motion sensors continuously monitor user activity, the processor analyzes sensor patterns to determine activity states, and haptic actuators adjust alert delivery based on this feedback, creating a closed-loop control system that optimizes haptic effectiveness
2Reliability
If haptic alert intensity is increased to ensure noticeability during motion, then alert detectability improves, but user comfort deteriorates due to excessive vibration
Solution Approach 1:
The system dynamically adjusts haptic alert intensity by detecting user motion state through sensors and modulating actuator output accordingly - reducing or pausing haptic alerts during high-intensity motion activities while maintaining normal alert delivery during low-motion states, optimizing both detectability and comfort
Solution Approach 2:
The patent changes haptic parameters (amplitude, frequency, duration) based on detected sensor patterns and user activity level, adjusting these parameters to match user sensitivity to touch during different motion states, thereby maintaining alert effectiveness while minimizing discomfort
Data Source
AI summary
A method may include obtaining sensor data from sensors of a primary device, determining a sensor pattern based on the sensor data, generating a response based on the sensor pattern, and sending a signal over a network to a secondary device to trigger an action of the secondary device. The signal may be based on the sensor pattern.