Grounding knife switch opening and closing sound recognition method and device

A technology of voice recognition and grounding knife switch, which is applied in speech recognition, neural learning methods, voice analysis, etc., can solve the problem of low accuracy of voice recognition of grounding knife switch opening and closing, and achieve high accuracy and accurate recognition effect

Pending Publication Date: 2022-04-05
YIJIAHE TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In short, the problem existing in the prior art is that the recognition accuracy of the opening and closing sound of the grounding knife switch is not high

Method used

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  • Grounding knife switch opening and closing sound recognition method and device
  • Grounding knife switch opening and closing sound recognition method and device
  • Grounding knife switch opening and closing sound recognition method and device

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Embodiment Construction

[0033] Such as figure 1 As shown, the grounding knife switch opening and closing sound recognition method of the present invention comprises the following steps:

[0034] (10) Real-time data acquisition: obtain dual-channel real-time sound data through the sound card module;

[0035] The real-time sound data can be obtained through a built-in or external sound card module, and through A / D analog-to-digital conversion, 16-bit, dual-channel, 48K sampling post-encoding is realized;

[0036] (20) Data analysis and conversion: decoding the monophonic sound data extracted from the two-channel real-time sound data to obtain audio data;

[0037] The process of data analysis and conversion is as follows: firstly, the obtained real-time data is dual-channel data, and the data processing process only needs to analyze the data of a single channel, so it is necessary to extract monophonic data from the dual-channel data , and then the mono-channel data is decoded to obtain the audio data...

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Abstract

The invention discloses a grounding knife switch opening and closing sound recognition method and device, and the accuracy is high. The method comprises the following steps: (10) real-time data acquisition: acquiring double-track real-time sound data; (20) data analysis and conversion: single-track sound data extracted from the double-track real-time sound data are decoded, and audio data are obtained; (30) feature extraction: preprocessing and fast Fourier transform are performed on the audio data, current voice data energy is calculated, high-frequency and intermediate-frequency filtering is performed based on the energy, and audio features under the signal are extracted; (40) identification parameter acquisition: filtering other sounds based on the audio characteristics of the signal; (50) voice recognition: recognizing the field voice data by adopting a sliding window mode based on the convolutional neural network; and (60) identification result output: combining the characteristic identification parameters and a grounding knife switch sound identification result obtained based on the convolutional neural network.

Description

technical field [0001] The invention belongs to the technical field of voice recognition, in particular to a voice recognition method and device for opening and closing a grounding knife switch. Background technique [0002] When overhauling power equipment, it is necessary to close and open the grounding switch. The sound of the knife switch is the key factor to judge whether the knife switch is closed and opened successfully. [0003] At present, when using a robot to operate the grounding knife switch in the switch cabinet room, the decibel level of the sound generated when the knife switch is closed and opened is often used to judge whether the operation is successful, but there will be many other noises during the operation, such as people. The sound of talking, the sound of car whistle, abnormal motor noise, and the sound of the robot in contact with the cabinet, etc., relying solely on the decibels of the sound will cause many misidentifications, resulting in operati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10L15/02G10L15/16G06N3/04G06N3/08
Inventor 鱼海歌李栗杨川蔡志宏张均徐倩南丁豪
Owner YIJIAHE TECH CO LTD
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