| In recent years,with the rapid development of economy and science and technology,people’s quality of life is constantly improving,along with the increase of the pace of life and work pressure,which leads to the incidence of cardiovascular diseases is also rising year by year.Cardiovascular disease has always been one of the major diseases threatening human health.The most intuitive manifestation has always been one of the major diseases threatening human health.The most intuitive manifestation of heart health is to observe whether the ECG signal is normal.General ECG detection equipment is only used in medical welfare institutions,which makes the diagnosis cost of heart disease increase.Due to the characteristics of sudden and latent heart disease,it is difficult to detect through the patient’s external manifestations.However,in the case of sudden disease,the sudden occurrence of the patient is difficult to receive timely treatment,and the mortality rate is high.Due to the disadvantages of expensive and inconvenient diagnosis of traditional ECG detection equipment,this paper studies and designs a wearable ECG monitoring system in view of the shortcomings of the current ECG monitoring system,which enables users to monitor cardiac pathological information in daily activities.The main research contents are as follows:(1)Overall scheme design of ECG monitoring system.Firstly,the existing problems of ECG monitoring equipment are analyzed and the overall requirements of the system are clarified.This paper introduces the basic knowledge and monitoring principle of ECG signal,expounds and analyzes the characteristics and pathological characteristics of each band of ECG waveform,and designs a set of ECG detection system scheme.(2)Spectrum analysis of ECG signal.The ECG signal spectrum analysis,get the noise interference source,and then the ECG waveform noise interference is analyzed,described the noise removal method,and the noise removal effect of Matlab simulation analysis and comparative analysis,finally for each kind of noise summed up the effect of good noise removal method.(3)Hardware design of ECG monitoring equipment.The design of wearable ECG monitoring equipment was realized on the hardware circuit.The integrity of the hardware circuit was guaranteed by building the hardware front-end conditioning unit and using Mutsilim for simulation.Then the hardware components were selected to analyze whether their performance and power consumption met the research purpose of this topic.(4)Software design of ECG monitoring equipment.The software program was burned inside the main control chip STM32,and the ECG monitoring system software based on Wechat mini program and Labview was designed on the mobile phone and the PC upper computer,and the heart rate and pathological information were identified and judged at the same time.(5)System experiment and analysis.The hardware and software of the system were verified through the test board,and then the physical debugging was carried out.The ECG equipment was applied to human body for experiments and pathological information was analyzed.The test results met the requirements of the subject for wearable ECG monitoring equipment. |
