Bluetooth Loudspeaker Continuous-Wakeup Delay Reduction
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Solution Overview
Problem
Intelligent Bluetooth loudspeakers experience significant delays during continuous-wakeup processes due to the time required to re-establish connections, leading to poor user experience.
Innovation Solution
Implementing a method that resets a wakeup flag bit upon receiving a stop-recording instruction via Bluetooth serial port communication and executing a wakeup-interruption operation after a preset keyword is received, allowing for direct initiation of the next wakeup without waiting for the previous operation to complete, thus reducing reconnection time and enhancing continuous-wakeup efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the Bluetooth loudspeaker waits for the previous wakeup operation to complete before initiating the next wakeup, then the connection stability is maintained, but the continuous-wakeup delay increases significantly
Solution Approach 1:
The patent applies preliminary action by resetting the wakeup flag bit to 1 before the previous wakeup operation completes. This allows the system to prepare for the next wakeup in advance, so when the keyword is detected again, the interruption can be executed immediately without waiting for connection re-establishment, thus reducing continuous-wakeup delay while maintaining connection stability
Solution Approach 2:
The patent implements dynamics by making the wakeup flag bit state changeable during operation. The flag bit transitions from 0 to 1 based on operational conditions (reset when stop-recording instruction is received), allowing the system to dynamically adjust its wakeup readiness state, enabling flexible control over continuous-wakeup behavior without fixed sequential constraints
2Reliability
If the Bluetooth loudspeaker re-establishes connection after each wakeup operation, then the communication reliability is ensured, but the reconnection time increases the overall wakeup delay
Solution Approach 1:
The system performs preliminary action by resetting the wakeup flag bit in advance when a stop-recording instruction is received. This preparation ensures that when the next keyword is detected, the system can immediately execute the wakeup interruption without undergoing the time-consuming connection re-establishment process, thereby improving wakeup efficiency while maintaining communication reliability through the flag-based control mechanism
3Stability of the object's composition
If the system processes the previous wakeup operation to completion before accepting the next wakeup, then the operational stability is maintained, but the continuous-wakeup response time increases
Solution Approach 1:
The patent applies preliminary action by resetting the wakeup flag bit to 1 before the previous wakeup operation completes (when stop-recording instruction is received). This allows the system to be pre-prepared for the next wakeup, enabling immediate response when the keyword is detected again, thus improving wakeup response speed while maintaining operational stability through controlled flag-based state management
Solution Approach 2:
The system implements dynamics by allowing the wakeup flag bit to change state based on real-time operational conditions. The flag can be reset to 1 during ongoing operations, enabling the system to dynamically transition between stable operation and rapid wakeup response modes, achieving both operational stability and fast response speed
Data Source
AI summary
The present disclosure is applicable to the technical field of loudspeaker and provides a method and apparatus for reducing continuous-wakeup delay of Bluetooth loudspeaker and a Bluetooth loudspeaker. The method for reducing continuous-wakeup delay of Bluetooth loudspeaker includes: resetting a wakeup flag bit to wait for a next wakeup when receiving a stop-recording instruction which is sent by a terminal equipment through a Bluetooth serial port communication protocol; and executing a wakeup-interruption operation again after a preset wakeup keyword is received. According to the present disclosure, time delay under a continuous-wakeup mode can be greatly reduced and a response speed of continuous-wakeup can be improved.