Design And Development Of Portable ECG Signal Acquisition Device

ObjectiveTo design and develop a protable ECG signal detection device which can reduce the cost and power consumption of ECG detector,realize the intelligent analysis of ECG detection,and be conventient to use and simple to operate.MethodsECG signal collector of Texas Instruments is selected to collect and adjust the ECG signal,and the programmable amplifier is embedded,which can flexibly adjust the amplification factor and effectively suppress the power frequency interference,and accurately complete the collection of information,so as to intellectualize the simulated ECG signal.Electrocardiogram signal preparation processing module selects the core single chip microcomputer of Macrocrystal technology series as the motherboard chip.The motherboard chip will collect the information after simple processing through the wireless module to send the information to the mobile intelligent terminal.After receiving the ECG data information,the mobile intelligent terminal uses the high-pass filter to filter out all kinds of interference such as baseline drift,power frequency interference and electromyography influence,and obtains the detection value in the ECG data.The ECG signal acquisition patch is equipped with a Bluetooth micro device,through Bluetooth connection for ECG signal monitoring and data acquisition,complete the transmission of the database.When collecting ECG signals,it is necessary to paste one ECG signal acquisition sticker on the left chest of the subject,turn on the ECG signal detector,and connect the ECG signal acquisition sticker through Bluetooth for data collection.Easy to carry mobile intelligent terminal(mobile phone or laptop)to achieve signal analysis and display module,through Bluetooth and ECG signal detector connection,to achieve data transmission,mobile intelligent terminal analysis and storage,can view historical detection records,data comparison.The ECG data repository is combined with the disease diagnosis system to provide more comprehensive back-end diagnostic support for the ECG detection system.It is convenient for doctors and patients to view the data and relevant analysis.ResultsThe design scheme divides the traditional ECG instrument architecture into two parts,one part is data signal acquisition and transmission module,the other is signal analysis and display module.Data signal acquisition and transmission module includes ECG signal detector,ECG signal acquisition patch,ECG signal acquisition patch has Bluetooth micro device,battery,ECG signal monitoring and data acquisition using Bluetooth connection,complete data transmission,ECG signal extraction is accurate,and accurate analysis and research,can effectively assist doctors to analyze and diagnose cardiovascular diseases.The ECG data repository is combined with the disease diagnosis system to provide more comprehensive back-end diagnostic support for the ECG detection system.It is convenient for doctors and patients to view the data and relevant analysis.ConclusionThrough the research and analysis of this paper,Data acquisition module device is small,low energy consumption,light weight,large volume,easy to use,simple operation,is a low cost,suitable for long time,long distance,easy to carry wireless ECG detection device.