R-wave Detection Using A Single-chip Microcomputer
This paper describes the hardware/software design of a system that detects R waves of the electrocardiogram. The system is based on a Motorola 68HC811 single-chip microcomputer, and contains only three discrete components. Under this hardware framework the R-wave detection algorithm cannot include any floating-point operation. Two algorithms have been implemented: one with the pacerspike rejection, the other without the pacer-spike rejection. The results of R-wave detection using the two algorithms are shown. The system presented here provides an effective, flexible, and low-cost solution to real-time R-wave detection.