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Defect detection visualization method and system

A defect detection and visualization technology, applied in the field of detection technology, which can solve problems such as occupational injuries and differences of listeners

Pending Publication Date: 2022-05-20
WISTRON CORP
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  • Description
  • Claims
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Problems solved by technology

However, the results detected by human ear evaluation will vary with subjective factors such as the age of the listener, emotional changes, and hearing fatigue, and may easily cause occupational injury to the listener.

Method used

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  • Defect detection visualization method and system
  • Defect detection visualization method and system
  • Defect detection visualization method and system

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Embodiment Construction

[0019] Some embodiments of the present invention will be described in detail in conjunction with the accompanying drawings. The referenced component symbols in the following description, when the same component symbols appear in different drawings, will be regarded as the same or similar components. These embodiments are only a part of the present invention, and do not reveal all possible implementation modes of the present invention. Rather, these embodiments are exemplary of the methods and systems described in the claims of the present invention.

[0020] figure 1 It is a block diagram of a defect detection system shown according to an embodiment of the present invention, but this is only for convenience of description, and is not intended to limit the present invention. first figure 1 First introduce all the components and configuration relationships in the defect detection system, and the detailed functions will cooperate with figure 2 together with the public.

[00...

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Abstract

The invention relates to a defect detection visualization method and a system thereof. Outputting the test audio signal to the to-be-tested device, and receiving a response signal of the to-be-tested device to the test audio signal to generate a received audio signal; signal processing is performed on a received audio signal to generate a time spectrogram. And according to the time spectrogram, visually judging whether the to-be-detected device has unacceptable defects in a pre-established auditory standard or not.

Description

technical field [0001] The present invention relates to a detection technology, and in particular to a defect detection visualization method and system thereof. Background technique [0002] A loudspeaker is a transducer that converts electrical signals into acoustic signals. It is widely used in audio equipment, earphones and other equipment, and its performance affects the use of these equipment. Loudspeaker assembly defects have traditionally been detected at the end of the production line by experienced listeners. This kind of detection requires applying log-swept sine chirps to the loudspeaker, and using human hearing detection to analyze whether the response signal is normal. However, the results detected by the human ear assessment will vary with subjective factors such as the listener's age, emotional changes, and hearing fatigue, and may easily cause occupational injury to the listener. Contents of the invention [0003] The invention provides a defect detection...

Claims

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Application Information

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IPC IPC(8): G06T7/00G06T7/11G06V10/764G06K9/62
CPCG06T7/0004G06T7/11G06T2207/20081G06F18/2411
Inventor 杨杰棋高盟超刘文光
Owner WISTRON CORP
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