Storing, processing and displaying method for heart sound in intelligent mobile phone visual heart sound examination device

Abstract

The invention discloses a storing, processing and displaying method for the heart sound in an intelligent mobile phone visual heart sound examination device, which is based on a Symbian platform. The system is a novel visual information processing platform which utilizes an electronic stethoscope to acquire the heart sound signals of the human body and then utilizes a mobile phone to carry out the data storage, heart rate detection and dynamic display of the acquired heart sound signals. The system comprises the electronic stethoscope, the mobile phone terminal and software. The electronic stethoscope is used for acquiring the heart sound signals of the human body; the mobile phone terminal receives the analog heart sound signals via a USB (Universal Serial Bus) interface of the mobile phone terminal, then utilizes a built-in analog-to-digital (A/D) conversion unit to convert the received analog heart sound signals into digital heart sound signals, and finally utilizes a mobile phone recording unit to record and store heart sound in the form of a WAV audio file into the mobile phone; and the software is the core of the whole system, and is used for carrying out the storage, playing, heart rate detection and dynamic displaying of the heart sound. The stored WAV heart sound audio file can be processed in two channels, and thereby anybody can monitor heart sound in real time anytime and anywhere.

Description

technical field [0001] The invention relates to a method for realizing heart rate detection and heart sound dynamic display by using a smart phone, and belongs to the technical field of electrocardiographic signal processing and transmission. Background technique [0002] Heart sound signal is an important physiological signal in the human body. The electronic stethoscope collects the heart sound through the heart sound sensor, and then uses the amplifier circuit to amplify the collected weak heart sound signal by more than ten times. At the same time, it can be connected to a personal computer (PC) and use signal processing software to display the heart sound signal waveform and analyze and process it. [0003] At present, the general method of utilizing an electronic stethoscope to detect heart sounds is to use a heart sound sensor to collect heart sound signals, and display waveforms on a liquid crystal display after being amplified by a circuit, or store the heart sound ...

AI Technical Summary

Problems solved by technology

However, there is still no product for using mobile phones as a tool for heart sound monitoring. Therefore, the development of a smart phone heart sound diagnostic device based on the Sym

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