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Related Experiment Videos

Development of a digital signal processor-based new 12-lead synchronization electrocardiogram automatic analysis

Yuxing Yang1, Dongyuan Yin, Richard Freyer

  • 1Institute of Biomedical Engineering, HuaZhong University of Science & Technology, Wuhan 430074, People's Republic of China. yxyang@mail.hust.edu.cn

Computer Methods and Programs in Biomedicine
|June 29, 2002
PubMed
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This study introduces a new digital signal processor (DSP)-based system for real-time, high-precision 12-lead electrocardiogram (ECG) analysis. The system efficiently processes ECG data for automatic analysis and parameter calculation.

Area of Science:

  • Biomedical Engineering
  • Digital Signal Processing
  • Medical Instrumentation

Background:

  • Real-time analysis of 12-lead electrocardiogram (ECG) data is crucial for timely diagnosis.
  • Existing systems may face limitations in processing speed, precision, or real-time capabilities.

Purpose of the Study:

  • To develop and present a novel multichannel ECG system utilizing a digital signal processor (DSP) for high-speed, high-precision, real-time 12-lead ECG analysis.
  • To combine the control capabilities of a Microprocessor (MPU) with the computational power of a DSP for efficient system resource utilization.

Main Methods:

  • Implementation of a double-CPU hardware architecture using MPU 89C55 and DSP TMS320F206.
  • Development of real-time tasks including multichannel synchronization, digital filtering, data storage, and waveform analysis.

Related Experiment Videos

  • Application of a fast integer-coefficient filter and automatic algorithms for calculating key ECG parameters.

    • Main Results:

    • The system achieves a high sampling rate of 1000 Hz with 12-bit precision.
    • Demonstrated efficient distribution of CPU resources for simultaneous real-time processing tasks.
    • Successfully calculated critical ECG parameters such as heart rate, P-R interval, Q-T interval, and ECG-axis deflection angle.

    Conclusions:

    • The developed digital ECG system offers a simple structure, high-speed and precise sampling, and robust real-time processing capabilities.
    • The dual-CPU design effectively balances control and computation for advanced ECG analysis.
    • The system has been successfully tested and validated for use in automatic ECG analysis instruments.