Title :
An ECG ambulatory system with mobile embedded architecture for ST-segment analysis
Author :
Miranda-Cid, Alejandro ; Alvarado-Serrano, Carlos
Author_Institution :
Bioelectronics Sect. of Electr. Eng. Dept., Nat. Polytech. Inst. (CINVESTAV), Mexico City, Mexico
fDate :
Aug. 31 2010-Sept. 4 2010
Abstract :
A prototype of a ECG ambulatory system for long term monitoring of ST segment of 3 leads, low power, portability and data storage in solid state memory cards has been developed. The solution presented is based in a mobile embedded architecture of a portable entertainment device used as a tool for storage and processing of bioelectric signals, and a mid-range RISC microcontroller, PIC 16F877, which performs the digitalization and transmission of ECG. The ECG amplifier stage is a low power, unipolar voltage and presents minimal distortion of the phase response of high pass filter in the ST segment. We developed an algorithm that manages access to files through an implementation for FAT32, and the ECG display on the device screen. The records are stored in TXT format for further processing. After the acquisition, the system implemented works as a standard USB mass storage device.
Keywords :
electrocardiography; high-pass filters; medical signal processing; microcontrollers; storage media; telemedicine; ECG ambulatory system; ECG amplifier stage; ST-segment analysis; TXT format; bioelectric signals; data storage; high pass filter; mid-range RISC microcontroller; mobile embedded architecture; portable entertainment device; solid state memory cards; standard USB mass storage device; unipolar voltage; Cardiology; Computers; Electrocardiography; Lead; Microcontrollers; Monitoring; Random access memory; Computers, Handheld; Electrocardiography, Ambulatory; Humans; Signal Processing, Computer-Assisted; Software;
Conference_Titel :
Engineering in Medicine and Biology Society (EMBC), 2010 Annual International Conference of the IEEE
Conference_Location :
Buenos Aires
Print_ISBN :
978-1-4244-4123-5
DOI :
10.1109/IEMBS.2010.5626165