Method and device for safety protection, and intelligent sound box
A safety protection device and safety protection technology, applied in frequency/direction characteristic devices, transducer circuits, sensors, etc., can solve problems affecting the stability and effectiveness of safety protection, cameras affecting monitoring effects, and potential safety hazards. Achieve good user privacy, not easy to discover and destroy, improve stability and effectiveness
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[0070] refer to figure 1 , the first embodiment of the safety protection method of the present invention is proposed, and the method includes the following steps:
[0071] S11. Collect ambient sound.
[0072] In the embodiment of the present invention, after the smart speaker starts the monitoring mode, the microphone collects the ambient sound of the target place with a certain sampling frequency. The sampling frequency can be set according to actual needs, such as 16KHZ or higher. The microphones of the smart speaker preferably include multiple microphone arrays. For example, a smart speaker collects sound signals in the environment through a microphone array pickup, and transmits them to a digital signal processor (Digital Signal Processor, DSP) through an audio interface to implement sampling and quantization of the audio signal.
[0073] Optionally, the user can remotely control the smart speaker to enable the monitoring function. For example, before step S11, the use...
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