Vehicle Voice Wake-Up Control for Accurate Multi-Device Selection
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Solution Overview
Problem
In multi-device wake-up scenarios, existing solutions face challenges such as inaccurate device selection due to noise interference, high power consumption, and resource wastage as all devices' wake-up engines are enabled simultaneously, leading to poor user experience.
Innovation Solution
A method where a vehicle-mounted device determines and responds to voice commands, enabling its wake-up engine while disabling those of terminal devices, using registration information including user and device details to accurately identify and respond to voice commands, thereby reducing power consumption and resource occupation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If all devices enable wake-up engines simultaneously, then each device can independently respond to voice commands, but power consumption and resource occupation increase significantly
Solution Approach 1:
The patent extracts the wake-up engine functionality from terminal devices and concentrates it in the vehicle-mounted device. Terminal devices disable their wake-up engines and rely on the vehicle-mounted device for voice command processing, thereby eliminating unnecessary power consumption while maintaining response capability
Solution Approach 2:
The patent merges the wake-up engine functionality into a single central device (vehicle-mounted device) that coordinates all terminal devices. This consolidation allows one device to handle voice processing while others remain in low-power mode, resolving the contradiction between response reliability and power consumption
2Reliability
If all devices enable wake-up engines simultaneously, then each device can independently respond to voice commands, but resource occupation increases significantly
Solution Approach 1:
The patent extracts the computationally intensive wake-up engine from terminal devices and relocates it to the vehicle-mounted device. This extraction reduces resource occupation in terminal devices while maintaining their ability to respond to commands through centralized coordination
Solution Approach 2:
The vehicle-mounted device assumes a universal role as the central coordinator for all terminal devices, handling voice processing and command distribution. This multi-functionality allows terminal devices to simplify their operations and reduce resource usage while maintaining system-wide responsiveness
3Ease of operation
If device selection is based on sound intensity, then simple decision logic can be used, but accuracy decreases in noisy environments
Solution Approach 1:
The patent introduces the vehicle-mounted device as an intermediary that receives and processes voice commands centrally. This mediator uses registration information to accurately identify target terminal devices regardless of noise levels, maintaining both simple operation and high accuracy by centralizing the decision-making process
4Adaptability or versatility
If multiple devices respond to voice commands simultaneously, then user coverage is improved, but user experience deteriorates due to poor coordination
Solution Approach 1:
The patent implements a feedback mechanism where the vehicle-mounted device receives voice commands, determines the appropriate target terminal device using registration information, and sends control instructions accordingly. This centralized feedback loop ensures coordinated responses and prevents simultaneous activation of multiple devices, improving user experience while maintaining broad coverage
Data Source
AI summary
A device control method includes a vehicle-mounted device that obtains voice information of a first user where the voice information instructs to perform a first operation. A target device is selected from a plurality of candidate devices based on the voice information, where the plurality of candidate devices include the vehicle-mounted device and at least one terminal device. Indication information is sent to the target device when the target device belongs to the at least one terminal device. The indication information instructs the target device to perform the first operation and when the target device is the vehicle-mounted device, the vehicle-mounted device performs the first operation.