The Research Of Portable ECG Receiving Device Based On ARM

With the development of society, people will pay more attention to the health, andwith the serious aging, various diseases come one after another. Among them, thecardiovascular diseases seriously threaten people’s body and health.Cardiovasculardiseases are usually random and dangerous, so a lot of patients can’t be timelyunderstanding of his heart condition, has died in hospital for treatment before. ECGsignal is an important basis for diagnosing the cardiovascular disease, so the importantphysiological information of ECG and other for remote monitoring is very important.Inmodern medicine, monitoring vital signs of human body with the ECG monitorin realtimecan be timely understand the status of the heart, and provide scientific basis forprevention and treatment of disease. With the development of communicationtechnology and computer technology, the portable ECG monitor for individual andfamily arises at the historic moment.Based on the laboratory project--the new portable ECG monitoring system basedon ‘electronic skin’, we research the Portable ECG Receiving Device based on ARM.The system adopts the design idea of modular, adopting Samsung’s S3C2440asembedded processor, and the paper designs other peripheral circuit, such as A/Dconversion, LCD display, SD card storage, GPRS transmission. The receiving deviceinternal A/D module can make the signal from ECG acquisition system analog-to-digitalconversion. After sampling, data is stored to the internal register. Then reading the valueof the register and showing it on3.5inch LCD of Dong Hua, and data will be alsostored in the8G SD card of Kingston. Through the GPRS module can be transmitremote data to the hospital’s monitoring platform, it can also sent text message for helpto the designated mobile phone. In addition, in order to achieve a good human-computerinteraction, system design the boot interface, it taking advantage of touch screeninterrupt can control when the acquisition signal. At the same time, the paper designsother auxiliary functions like the alarm module. When the patient feels unwell, pressingthe key1can achieve the buzzer sounds and LED lights. Pressing key2can stop theECG signal acquisition and close the LCD display. We can use ADS1.2developmentplatform and USB download tool for the actual test, the system can be very good tocomplete the design requirements.In structure, this paper discusses in detail the research background and significance of the device firstly, introduces the basic theory of ECG signal and the hardware andsoftware design of the system. The hardware part mainly introduces the connection ofhardware circuit, and the software part mainly introduces the principle and program ofeach module.