Method and device for power spectral parameter detection and analysis of pulse wave

Abstract

The invention discloses a method and a device for power spectral parameter detection and analysis of pulse wave. The device comprises a master control module, a pulse wave detection sensor, a filter module, a sampling module, a liquid crystal display module, a serial port communication module, a SD (secure digital) card memory module and an upper computer software analysis system. The pulse wave detection sensor, the filter module, the sampling module, the master control module, the serial port communication module and an upper computer are connected in sequence. The master control module is respectively connected with the liquid crystal display module and the SD card memory module. Human pulse wave signals are converted into analog electrical signals through the pulse wave sensor, the analog electrical signals filtered by the filter module are converted into digital signals through the sampling module, the pulse wave signals are transmitted to the liquid crystal module for displaying after the digital signals are subjected to signal processing by the master control module, and the pulse wave signals are further analyzed through the SD card memory module and upper computer software. The method and the device can be used for accurately detecting the human pulse wave, and the device, which is simple and easy in operation, is provided for power spectral analysis of the pulse wave.

Description

technical field [0001] The invention relates to the technical field of life body parameter evaluation, in particular to the field of pulse wave power spectrum parameter detection and analysis. Background technique [0002] The frequency domain analysis of pulse wave began in the 1980s. It performed fast Fourier changes on the pulse wave, and then extracted information corresponding to human physiology and pathology from the pulse wave spectrum. A signal in the time domain undergoes Fourier transform, and a corresponding function will be obtained in the frequency domain. The information contained in this function is exactly the same as that contained in the original signal function in the time domain. The only difference is the representation method, which is based on The aggregate form of all frequency components of the original signal is used to represent the original signal, which will help to identify and analyze the original signal, thereby deepening the understanding of...

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Problems solved by technology

[0003] The pulse wave detection and analysis methods and devices that have been developed and applied at present analyze the physiology and pathology of the human body from the time domain of the pulse wave. Chinese patents such as patent No. 87104261.4 and 200310121187.2 extract the corresponding The feature points of the pulse wave are then analyzed to calculate the time-domain feature points of the pulse wave. The disadvantage is that it cannot reflect the overall characteristics of the pulse wave

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