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Sound pressure signal acquisition method and device

A technology for collecting devices and sound pressure signals, which is applied in the direction of measuring devices, signal transmission systems, non-electrical signal transmission systems, etc., can solve problems such as large errors in sound pressure signals, and achieve the effect of avoiding collection errors and reducing errors

Pending Publication Date: 2021-03-19
宝能汽车集团有限公司
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Problems solved by technology

But at present, the collected sound pressure signal has large errors, which makes it difficult for developers to make reasonable improvements to the vehicle based on the sound pressure signal

Method used

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  • Sound pressure signal acquisition method and device
  • Sound pressure signal acquisition method and device
  • Sound pressure signal acquisition method and device

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Embodiment Construction

[0063] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0064]The sound pressure signal acquisition method and device according to the embodiments of the present invention will be described below with reference to the accompanying drawings.

[0065] It should be noted that the sound pressure collection devices in this embodiment are arranged in the vehicle, and the number of sound pressure collection devices can be selected according to actual conditions, which is not limited here. In addition, the sound pressure collection device is connected to the host computer through a wireless n...

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Abstract

The invention discloses a sound pressure signal acquisition method and device. The method comprises steps of transmitting a test instruction to a sound pressure acquisition device located in a vehicleso as to enable the sound pressure acquisition device to transmit a test signal; receiving a test signal sent by the sound pressure acquisition device; and according to the test signal, identifying the transmission sensitivity of the sound pressure acquisition device, and correcting the transmission sensitivity. According to the method, when the sound pressure signal in the vehicle is acquired, transmission sensitivity of the sound pressure acquisition device is identified, and transmission sensitivity is corrected according to the identification result, so transmission sensitivity of the sound pressure acquisition device is in a reasonable range, and an acquisition error caused by the transmission sensitivity is avoided; therefore, an error of sound pressure signal acquisition is reduced.

Description

technical field [0001] The invention relates to the technical field of sound pressure signal monitoring, in particular to a sound pressure signal acquisition method and device. Background technique [0002] In the process of vehicle product development, it is often necessary to collect sound pressure signals of vehicles under various working conditions, and improve the vehicle according to the collected sound pressure signals, so that the noise in the vehicle is within a reasonable range. But at present, the collected sound pressure signal has a large error, which makes it difficult for developers to make reasonable improvements to the vehicle based on the sound pressure signal. Therefore, how to reduce the error of sound pressure signal acquisition is an urgent technical problem to be solved at present. Contents of the invention [0003] The present invention aims to solve one of the technical problems in the related art at least to a certain extent. [0004] Therefore,...

Claims

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Application Information

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IPC IPC(8): G01H17/00G08C17/02G08C23/04
CPCG01H17/00G08C17/02G08C23/04
Inventor 郭九大李干
Owner 宝能汽车集团有限公司
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