Research and development of an intelligent moxibustion instrument based on electromyography

PENG Xin; ZHANG Tianyi; WANG Dongying; GU Xuelian; YU Zihao

doi:10.13703/j.0255-2930.20241128-0006

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Research and development of an intelligent moxibustion instrument based on electromyography

Acupuncture and Intelligent Medicine | 更新时间：2025-07-17

- Research and development of an intelligent moxibustion instrument based on electromyography
- Chinese Acupuncture & Moxibustion Vol. 45, Issue 7, Pages: 889-895(2025)
- 作者机构：
  
  上海理工大学健康科学与工程学院，上海　200093
  上海中医药大学中医体质健康研究室
- 作者简介：
- 基金信息：
- DOI：10.13703/j.0255-2930.20241128-0006
  CLC：
- Received：28 November 2024，
  
  Online First：21 April 2025，
  
  Published：12 July 2025
- 稿件说明：
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PENG Xin, ZHANG Tianyi, WANG Dongying, et al. Research and development of an intelligent moxibustion instrument based on electromyography[J]. Chinese Acupuncture & Moxibustion, 2025, 45(7): 889-895.
DOI：

PENG Xin, ZHANG Tianyi, WANG Dongying, et al. Research and development of an intelligent moxibustion instrument based on electromyography[J]. Chinese Acupuncture & Moxibustion, 2025, 45(7): 889-895. DOI： 10.13703/j.0255-2930.20241128-0006.

摘要

目的：

设计一种基于肌电信号的智能艾灸仪，以实时评估艾灸治疗效果。

方法：

以肾俞穴为研究对象，采集肾俞穴中心及等距点处的表面肌电信号（sEMG），并计算施灸前后的积分肌电（iEMG）值和均方根（RMS）值特征参数，分析艾灸效果后得到施灸结束提示功能算法。随后，利用该算法结合STM32技术设计艾灸仪的控制系统与上位机软件，实现对施灸过程的精确控制。最后，通过临床试验对智能艾灸仪的功能性、稳定性和安全性进行验证，确保其在实际应用中的效果。

结果：

肾俞穴中心点施灸的1个周期内，该处sEMG的iEMG值随着时间增加而下降，即肌肉疲劳程度降低，而超过1个周期后，该处的iEMG值随着时间增加而升高，即肌肉疲劳程度升高；肾俞穴等距点施灸前后的RMS值最大上升了1.90%，且系统在RMS值上升0.15%时已经提示施灸结束，肾俞穴中心点最大降低0.13%。基于此算法设计的智能艾灸仪能实现温和灸功能，通过上位机可实时监测RMS值变化评估施灸效果。智能艾灸仪工作中推进艾条稳定，艾条与皮肤表面始终保持3~4 cm的安全距离，当艾条长度小于5 cm、皮肤温度超过48 ℃的预设安全阈值时，系统会自动触发警报。

结论：

本研究设计的智能艾灸仪能够有效评估施灸效果，且能保障施灸过程中的安全性和稳定性。

Abstract

Objective

An intelligent moxibustion instrument based on electromyography was designed to evaluate the real-time therapeutic effect of moxibustion.

Methods

Taking Shenshu (BL23) as the subject

surface electromyography (sEMG) at the center and equidistant points of Shenshu (BL23) were collected. The characteristic parameters

integrated electromyography (iEMG) and root mean square (RMS) were calculated before and after moxibustion. After analyzing the effect of moxibustion

a function algorithm for the end-of-moxibustion was obtained. Using this algorithm and combined with STM32 technology

the control system of moxibustion instrument and the upper computer software were designed to achieve the precise control during moxibustion delivery. Finally

the function

stability and safety of the moxibustion instrument were verified through clinical trials to ensure its effectiveness in practical application.

Results

During one cycle of moxibustion at the center of Shenshu (BL23)

the iEMG of sEMG decreased over time

meaning the decrease in muscle fatigue degree

and after one cycle of moxibustion

it elevated over time

showing the increase in muscle fatigue degree. RMS increased by 1.90% before and after moxibustion at the equidistant points of Shenshu (BL23)

and the system indicated the end of moxibustion when RMS increased by 0.15%

and decreased by 0.13% at the center of Shenshu (BL23). The intelligent moxibustion instrument designed based on this algorithm can realize the function of mild moxibustion

and the effect of moxibustion can be evaluated by the real-time monitoring of RMS changes through the upper computer. During the operation of moxibustion instrument

moxa stick was fixed stably

remained a safe distance of 3 cm to 4 cm away from the skin surface. When the length of moxa stick was less than 5 cm left after ignited and the skin temperature exceeded the preset safety threshold of 48 ℃

the system was alarmed automatically.

Conclusion

The intelligent moxibustion instrument designed in the research can effectively evaluate the effect of moxibustion

and ensure the safety and stability during moxibustion delivery.

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