用于表征气流的方法和装置

By combining microphone arrays and acoustic signal analysis with machine learning, the problems of non-scalability and high cost of existing airflow measurement equipment are solved, enabling low-cost, instantaneous and accurate airflow measurement in small devices.

CN114080821BActive Publication Date: 2026-07-17FRAUNHOFER GESELLSCHAFT ZUR FORDERUNG DER ANGEWANDTEN FORSCHUNG EV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
FRAUNHOFER GESELLSCHAFT ZUR FORDERUNG DER ANGEWANDTEN FORSCHUNG EV
Filing Date
2020-04-30
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing airflow measurement devices suffer from problems such as lack of scalability, high cost, or frequent maintenance, and are difficult to integrate into small devices such as smartphones or action cameras.

Method used

A microphone array is used to receive acoustic signals generated by airflow. The airflow speed and direction are estimated through acoustic signal analysis and machine learning methods, avoiding moving parts and high costs.

Benefits of technology

It enables low-cost, small-size, instantaneous, and accurate airflow measurement in small devices, suitable for devices such as smartphones and action cameras.

✦ Generated by Eureka AI based on patent content.

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Abstract

用于表征气流的方法，包括以下步骤：通过麦克风阵列接收气流生成的声学信号；从声学信号中提取特性信息；基于特性信息确定关于气流的信息。
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