Heartbeat frequency determination method and data processing device
A heartbeat frequency and sequence technology, applied in the field of heartbeat frequency determination method and data processing device, can solve the problems of poor heartbeat frequency accuracy, and achieve the effect of improving accuracy
Pending Publication Date: 2021-11-02
WHST CO LTD
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Problems solved by technology
[0005] The embodiment of the present invention provides a method for determining the heartbeat frequency and a data processing device to solve the problem of poor accuracy of the heartbeat frequency detected in the prior art
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[0053] In the following description, specific details such as specific system structures and technologies are presented for the purpose of illustration rather than limitation, so as to thoroughly understand the embodiments of the present invention. It will be apparent, however, to one skilled in the art that the invention may be practiced in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.
[0054] In order to make the purpose, technical solution and advantages of the present invention clearer, specific embodiments will be described below in conjunction with the accompanying drawings.
[0055] In the prior art, when detecting the heartbeat frequency of a human body based on a frequency modulated continuous wave (FMCW) radar, the accuracy of the detection result is generally low. The ...
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The invention provides a heartbeat frequency determination method and a data processing device. The method comprises the following steps of receiving multiple frames of millimeter wave radar echo signals; according to the multi-frame millimeter wave radar echo signal, determining a breathing phase sequence and a heartbeat phase sequence corresponding to each candidate distance unit in a plurality of candidate distance units; determining a first target distance unit based on a fast Fourier transform method, and / or determining a second target distance unit based on an autocorrelation method; and determining a target heartbeat frequency according to the heartbeat phase sequence corresponding to the first target distance unit and / or the second target distance unit. According to the method, a distance unit which can represent the heartbeat most is selected by adopting the Fourier transform method and the autocorrelation method, and the heartbeat frequency is determined according to the distance unit, so accuracy of determining the heartbeat frequency is improved.
Description
technical field [0001] The invention relates to the technical field of heartbeat detection, in particular to a method for determining a heartbeat frequency and a data processing device. Background technique [0002] With the continuous development of society, people pay more and more attention to their own health. Some key indicators of human health can be analyzed through long-term statistics of breathing and heartbeat frequency during sleep. Therefore, heartbeat frequency extraction devices based on FMCW radars have widely appeared in the market. [0003] At present, the respiration and heartbeat extraction device based on FMCW radar processes the FMCW radar signal to obtain respiration and heartbeat data, and extracts the heartbeat frequency based on the obtained respiration and heartbeat data. [0004] However, the accuracy of the heartbeat frequency detected by the above-mentioned FMCW radar-based breathing and heartbeat extraction device is poor. Contents of the inv...
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Login to View More IPC IPC(8): G01S13/88G01S7/41A61B5/024A61B5/00
CPCG01S13/88G01S7/411A61B5/024A61B5/02444A61B5/7257A61B5/7207Y02A90/10
Inventor 程毅彭诚诚赵洛伟陈红伟成云丽刘子华何文彦李勇秦屹
Owner WHST CO LTD