METHOD AND SYSTEM FOR RECOGNIZING CRACKLES

    公开(公告)号:US20210007703A1

    公开(公告)日:2021-01-14

    申请号:US16081880

    申请日:2017-12-15

    Abstract: The present disclosure provides a method for recognizing crackles, including: processing collected lung sound signal to extract moist rale component for a respiratory cycle; calculating a power spectrum of the moist rale component, and according to the power spectrum, calculating at least one of a ratio of power of each preset frequency band in a plurality of preset frequency bands to total power of all preset frequency bands and the total power of all the preset frequency bands and selecting at least one of them as a frequency domain parameter, and/or calculating at least one of a ratio of the number of occurrence of moist rale in the late inspiratory phase to the total number of occurrence of moist rale in the entire inspiratory phase and a maximum amplitude of moist rale in the entire inspiratory phase and selecting at least one of them as a time domain parameter; inputting the frequency domain parameter and/or the time domain parameter serving as a parameter feature into a classification model for recognition. The present disclosure further provides a system for recognizing crackles. The method and the system can improve the accuracy for recognizing crackles.

    Method and system for recognizing crackles

    公开(公告)号:US11660062B2

    公开(公告)日:2023-05-30

    申请号:US16081880

    申请日:2017-12-15

    CPC classification number: A61B7/003 A61B7/04 G16H50/20

    Abstract: The present disclosure provides a method for recognizing crackles, including: processing collected lung sound signal to extract moist rale component for a respiratory cycle; calculating a power spectrum of the moist rale component, and, calculating at least one of a ratio of power of each preset frequency band to total power of all preset frequency bands and the total power of all the preset frequency bands as a frequency domain parameter, and/or calculating at least one of a ratio of the number of occurrence of moist rale and a maximum amplitude of moist rale in the entire inspiratory phase as a time domain parameter; inputting the frequency domain parameter and/or the time domain parameter serving as a parameter feature into a classification model for recognition. The present disclosure further provides a system for recognizing crackles.

    DEVICE, SYSTEM AND METHOD FOR VEHICLE DRIVING ASSISTANCE

    公开(公告)号:US20190278283A1

    公开(公告)日:2019-09-12

    申请号:US16136156

    申请日:2018-09-19

    Abstract: A vehicle driving assistance device is disclosed, including: a sensor system, configured to sense current traveling state information of a vehicle and surrounding environment information of an area in which the vehicle is located; a communication circuit, configured to acquire a driving model of successfully passing through the area; and a data processor, configured to provide vehicle traveling information on a subsequent vehicle traveling operation according to the acquired driving model, the current traveling state information of the vehicle, and the surrounding environment information. A system including a vehicle driving assistance device and a cloud server, and a method for vehicle driving assistance are also disclosed. The vehicle driving assistance device transmits the driving model to the cloud server, or acquires the driving model from the cloud server.

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