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Sound alarm detection method and device

A sound alarm and detection method technology, applied in voice analysis, voice recognition, instruments, etc., can solve the problem of not being able to take care of people without language skills, and achieve the effect of reducing the false alarm rate

Active Publication Date: 2022-07-19
常州分音塔科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome at least to a certain extent the problem that the sound alarm in the related art can only recognize the set alarm sensitive words and cannot take into account the non-linguistic people, this application provides a sound alarm detection method and equipment

Method used

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  • Sound alarm detection method and device
  • Sound alarm detection method and device

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Embodiment Construction

[0033] Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. Where the following description refers to the drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the illustrative examples below are not intended to represent all implementations consistent with this application. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present application as recited in the appended claims.

[0034] A sound alarm detection method, refer to figure 1 ,include:

[0035] S11: Acquire sound data to be detected;

[0036] In this embodiment, a pickup may be installed in a place where it is inconvenient to install a camera, such as a bedroom and a bathroom, to collect sound data to be detected.

[0037] The sound data to be detected may be noises such as TV sound, daily chatting sound, etc...

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Abstract

The present application relates to a sound alarm detection method and device. The method includes: acquiring sound data to be detected, preprocessing the sound data to be detected, and obtaining the processed sound data. Calculate the autocorrelation function value of each signal in the processed sound data. Based on the preset window function, sliding the window is performed on the autocorrelation function value of each signal in the processed sound data to obtain the number of signals passing through the sliding window in the processed sound data. Call the police. Since the preset range value in this application is obtained according to the periodic tapping sound, the person without language ability can choose to perform periodic tapping to generate the sound data to be detected. When the range value is set, it is judged that the sound data to be detected is a periodic knock sound, and the alarm condition is reached at this time, and an alarm is issued. In the present application, the periodic law of the sound is also detected by the autocorrelation function, thereby shielding various noises and reducing the false alarm rate.

Description

technical field [0001] The present application relates to the technical field of intelligent security, and in particular, to a sound alarm detection method and device. Background technique [0002] Sound alarm has a wide range of application scenarios. For example, when it is applied to the field of intelligent security, sound alarms can be installed as monitoring in places where it is inconvenient to install cameras such as bedrooms and bathrooms. The specified alarm sensitive words will trigger the alarm device. However, some people who have lost the ability of speech (such as the elderly who cannot pronounce or patients with cerebral infarction) cannot give an alarm by sound, and the sound alarm in the prior art cannot take into account the people without language ability. SUMMARY OF THE INVENTION [0003] In order to at least to a certain extent overcome the problem that the sound alarm device in the related art can only recognize the set alarm sensitive words, and ca...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08B3/10G10L15/02G10L25/24
CPCG08B3/10G10L15/02G10L25/24
Inventor 张明杜文强关磊
Owner 常州分音塔科技有限公司