Journal of the Ergonomics Society of Korea (대한인간공학회지)
- Volume 9 Issue 1
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- Pages.3-14
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- 1990
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- 1229-1684(pISSN)
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- 2093-8462(eISSN)
Heart beat interval measurement using an IBM PC
IBM PC를 이용한 심장 박동 간격의 측정
Abstract
This article develops a cost-effective and accurate measurement system for heart best intervals. The system is composed of an analog to digital (A/D) converter, an IBM personal computer (an 8088 microprocessor, an 8253-5 timer, an 8259A interrupt controller, and memories) and assembler programs for controlling these hardware components. An exponential smoothing algorithm effectively reduced noise effects from A/D converted electrocardiogram (ECG) signals influenced by 60 Hz alternating current (AC). The system can collect 15000 heart beat intervals with an 1/5400 second unit.
Keywords