Smart Device Wake-Up Selection Using Angle and Energy
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current wake-up solutions for smart devices in smart home scenarios lack accuracy in determining the correct device to respond to a user's instruction, often prioritizing devices based on their relative position to the user rather than the device actually intended.
Innovation Solution
A method and apparatus that select candidate devices capable of responding to a wake-up signal by determining a target wake-up angle and energy for each device, using optimization search algorithms and noise cancellation techniques to identify the most suitable device based on sound source direction and energy reception.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If wake-up priority is determined based on device position relative to user, then device response speed is improved, but wake-up accuracy deteriorates
Solution Approach 1:
The patent changes the parameter basis for wake-up priority from simple position distance to a composite parameter system including wake-up angle and wake-up energy. The wake-up angle is calculated based on the direction of sound source relative to device front direction, and wake-up energy is calculated from signal strength. This parameter transformation enables accurate identification of user-intended devices even when multiple devices are within preset ranges.
2Adaptability or versatility
If multiple smart devices are configured with voice interaction functions, then system versatility is improved, but device selection accuracy deteriorates
Solution Approach 1:
The patent implements a feedback mechanism where each device calculates its wake-up angle and wake-up energy based on the wake-up signal, then compares these parameters against preset thresholds and彼此之间. The device with the optimal combination of angle (closest to 0 degrees, indicating front direction) and energy (highest signal strength) is selected. This feedback-based selection ensures that even in multi-device scenarios, the user-intended device is accurately identified.
3Ease of operation
If wake-up priority is based on preset range proximity, then ease of operation is improved, but response accuracy deteriorates
Solution Approach 1:
The patent performs preliminary calculations of wake-up angle and wake-up energy before making the final device selection. The wake-up angle is preliminarily determined by comparing the sound source direction with each device's front direction, and wake-up energy is preliminarily calculated from the wake-up signal strength. These preliminary results are then used to determine the final priority, ensuring both ease of operation and high accuracy.
Data Source
AI summary
A wake-up method and apparatus for a smart device, a storage medium and an electronic device are provided. The method includes: selecting, from a plurality of smart devices, at least one smart device that is allowed to be awakened by a wake-up signal as at least one candidate device; when there are multiple candidate devices, determining a target wake-up angle and target wake-up energy corresponding to each of the multiple candidate devices; and determining a target device from the multiple candidate devices according to the target wake-up angle and the target wake-up energy, wherein the target device is used for responding to the wake-up signal.