Human physiology signal acquisition and processing method and system based on MIC interface

Abstract

The invention discloses a human physiology signal acquisition and processing method. The human physiology signal acquisition and processing method comprises the steps of performing amplification and regulation of acquired human physiology signals, performing voice frequency amplitude modulation to all of human physiology signals, performing superposition of modulated human physiology signals to form a composite voice frequency signal, sampling the composite voice frequency signal input into an MIC port and converting the composite voice frequency signal into a digital signal, utilizing a digital band-pass filter group to perform band-pass filtering of the digital signal and decomposing composite signals on a frequency band to be modulating signals of the human physiology signals, performing envelope detection reduction of decomposed modulating signals to obtain low-frequency human physiology signals and finishing acquisition, analysis and processing. The invention further discloses a corresponding human physiology signal acquisition and processing system. By means of the human physiology signal acquisition and processing method and system, multiple human physiology signals are modulated in a frequency division mode and then are composited to form a voice frequency signal, and accordingly universalized processing can be achieved. In addition, a built-in sound card takes the place of a data acquisition card, so that the cost is compressed, architecture is simplified, and the method and system is convenient to achieve.

Description

technical field [0001] The invention belongs to the field of signal collection, analysis and processing, and in particular relates to a method and system for collecting and processing human physiological signals. Background technique [0002] People pay more and more attention to their own pulse, blood pressure, ECG and other human physiological signals. In order to reduce medical costs, make large medical instruments miniaturized, household, and portable, and facilitate self-diagnosis and monitoring of family members, many medical instruments are aimed at family needs. A mobile home version is provided, and a large number of self-testing instruments for human physiological signals for home health care such as electronic sphygmomanometers, portable electrocardiographs, and blood oxygen saturation measuring instruments have appeared. [0003] These household medical instruments are generally composed of two parts: a sensor for measuring human physiological signals and a host ...

AI Technical Summary

Problems solved by technology

[0006] Aiming at the above defects and improvement needs of the prior art, the present invention provides a method and system for collecting and processing human physiological signals. The equipment collects, processes and analyzes, thereby solving the problems of complex circuits of human physiological signal collection and analysis devices, inability to collect multiple channels at the same time, and inconvenient use and portability

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