التفاصيل البيبلوغرافية
| العنوان: |
用于动态心电监护仪的心电信号无线传输系统的设计. (Chinese) |
| Alternate Title: |
Design of wireless transmission system of ECG signal in dynamic ECG monitor. (English) |
| المؤلفون: |
姚申思, 王 猛 |
| المصدر: |
Chinese Medical Equipment Journal; Jun2024, Vol. 45 Issue 6, p28-32, 5p |
| Abstract (English): |
Objective To design an ECG signal wireless transmission system for the dynamic ECG monitor. Methods The ECG signal wireless transmission system developed was composed of an ECG signal acquisition module, a wireless transceiver module, a wireless communication protocol module and a digital filtering module. The ECG signal acquisition module consisted of a digital interface circuit, an A/D converter microprocessor and an ECG amplification circuit. The wireless transceiver module was made up of a wireless RF unit, a crystal oscillator circuit, an RF circuit, a debug serial port, a register, a power supply module and a reset circuit. The wireless communication protocol module involved in a data link layer and a physical layer, of which the data link layer had two mechanisms of automatic response and frequency modulation. The digital filtering module mainly included a digital filter, a signal input module, a delay unit and a coefficient registers, and the digital filter was designed using the equiripple method and realized signal denoising by converting ECG signals into output sequences. The performance of this system for wireless transmission of ECG signals at different proximity remote transmission distances was validated with the ECG signal wireless transmission methods based on ZigBee networking and general packet radio service (GPRS) and based on wireless networking module used as comparative methods. Results The system developed gained advantages over the other two methods in average rate, sucess rate, average time consumption and average frequency for re-transmission of ECG signal wireless transmission. Conclusion The system developed can be used for efficient, stable and clear ECG signal wireless transmission for the dynamic ECG monitor. [ABSTRACT FROM AUTHOR] |
| Abstract (Chinese): |
目的:设计一种心电信号无线传输系统,以提高动态心电监护仪中心电信号的无线传输性能. 方法:该系统由 心电信号采集模块、无线收发模块、无线通信协议模块和数字滤波模块组成. 心电信号采集模块由数字接口电路、A/D 转换器微处理器、心电放大电路组成. 无线收发模块由无线射频单元、晶振电路、射频电路、调试串口、寄存器、电源模 块和复位电路组成. 无线通信协议模块由数据链路层与物理层组成,其中数据链路层设计自动应答和调频2种机制. 数字滤波模块主要由数字滤波器、信号输入模块、延时单元、系数寄存器等组成,其中数字滤波器采用等波纹法设计, 并将心电信号转换为输出序列,实现信号去噪. 将基于ZigBee 组网和通用分组无线业务(general packet radio service, GPRS)的心电信号无线传输方法和基于无线组网模块的心电信号无线传输方法作为对比方法,验证该系统在不同近 程传输距离和不同远程传输距离下的心电信号无线传输性能. 结果:相比其他2种方法,在不同近程传输距离和不同 远程传输距离下,该系统的心电信号无线传输平均速率和成功传输比例较高,平均用时及平均重传数较低. 结论:该 系统能够实现动态心电监护仪中心电信号高效、平稳、清晰的无线传输. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
Complementary Index |
