Title :
A compact, electrode-mounted, ECG R-R interval recording system
Author :
Ohnishi, Jun ; Yonezawa, Yoshiharu ; Ninomiya, Ishio
Author_Institution :
Dept. of Electron., Hiroshima Inst. of Technol., Japan
Abstract :
An ECG R-R interval recording system has been developed for a heart rate variability monitor. The recording system, which employs a low power 8-bit single chip microcontroller (SMC) and a 512 KB EEPROM, is constructed on three ECG chest electrodes. The ECG from the electrodes is converted to an 8-bit serial digital format by a 8-bit A/D converter in the SMC. The SMC detects the R wave and calculates the R-R interval, which is stored by the EEPROM. The system is powered by a small 3 V lithium battery, which provides 100 hours of continuous operation. The 28.5 cc system weighs 28 grams
Keywords :
EPROM; analogue-digital conversion; biomedical electrodes; biomedical electronics; computerised monitoring; electrocardiography; instrumentation amplifiers; low-power electronics; medical signal processing; microcontrollers; 3 V; 512 KB; 8 bit; A/D converter; ECG R-R interval recording system; ECG chest electrodes; EEPROM; RISC-like CPU; battery powered; compact electrode-mounted system; digital potentiometer; heart rate variability monitor; low-power single chip microcontroller; serial digital format; variable-gain instrumentation amplifier; Batteries; EPROM; Electrocardiography; Electrodes; Filters; Heart rate measurement; Instruments; Lithium; Potentiometers; Sliding mode control;
Conference_Titel :
[Engineering in Medicine and Biology, 1999. 21st Annual Conference and the 1999 Annual Fall Meetring of the Biomedical Engineering Society] BMES/EMBS Conference, 1999. Proceedings of the First Joint
Conference_Location :
Atlanta, GA
Print_ISBN :
0-7803-5674-8
DOI :
10.1109/IEMBS.1999.802369
