基于STM32芯片的混沌波电刺激仪的研究
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摘要
目的:设计一款基于STM32主控芯片的混沌波电刺激仪,解决人体长期或长时间接受电刺激治疗时易产生的人体耐受性问题。方法:采用嵌入式STM32芯片作为硬件系统设计的核心,并利用Lorenz混沌算法产生混沌波形,通过数字信号与模拟信号(D/A)转换模块、功率放大模块、升压电路等产生刺激人体的混沌波形。结果:主控芯片STM32计算产生的混沌信号,经过一系列的整流、滤波及放大产生了可以刺激人体的混沌波形。结论:基于STM32芯片的混沌波电刺激仪可以有效改善人体对电刺激的耐受性,电针的刺激效果也会得到保持。
Objective: To design a electric stimulator with chaotic wave based on STM32 main control chip so as to solve the problem that human body occurred tolerance when human body receives electrical stimulation in a long term or long time. Methods: The embedded STM32 chip that was used as the core of the design of hardware system was adopted, and the Lorenz chaos algorithm was used to generate the chaotic waveform. Through the conversion module of digital signal and analog signal(D/A), the module of power amplification, booster circuit and others to produce chaotic waveform which was used to stimulate human body. Results: Through a series of rectification, filtering and amplification, the chaotic signal that were generated by the main control chip STM32 produced chaotic waveforms which could stimulate human body. Conclusion: The electric stimulator with chaotic wave based on STM32 chip can effectively improve the tolerance of human body to electrical stimulation.
Objective: To design a electric stimulator with chaotic wave based on STM32 main control chip so as to solve the problem that human body occurred tolerance when human body receives electrical stimulation in a long term or long time. Methods: The embedded STM32 chip that was used as the core of the design of hardware system was adopted, and the Lorenz chaos algorithm was used to generate the chaotic waveform. Through the conversion module of digital signal and analog signal(D/A), the module of power amplification, booster circuit and others to produce chaotic waveform which was used to stimulate human body. Results: Through a series of rectification, filtering and amplification, the chaotic signal that were generated by the main control chip STM32 produced chaotic waveforms which could stimulate human body. Conclusion: The electric stimulator with chaotic wave based on STM32 chip can effectively improve the tolerance of human body to electrical stimulation.
引文
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[3]薛建伟,高跃明.基于混沌算法的电针仪[J].医疗装备,2016,29(19):29.
[4]林若波.基于混沌理论的信号发生器的研究与设计[D].长沙:湖南大学,2009.
[5]席强,赵敏,杨华元,等.基于AD5933阻抗测量芯片的人体经穴阻抗动态监测系统研制[J].中国医学装备,2014,11(11):7-9.
[6]毕圣昭.基于ARM的新型智能电针治疗仪的研制与疗效评估[D].南昌:南昌大学,2014.
[7]雍明超.基于ARM的智能电针治疗仪的研究与设计[D].郑州:郑州大学,2010.
[8]郝会玲,沙洪,任超世.一种新型智能电刺激治疗仪的研究[J].中国医学装备,2011,8(10):1-4.
[9]郑金存,张慧,覃斌毅,等.变参数混沌信号应用于经皮神经电刺激的探索研究[J].生物医学工程学杂志,2015,32(5):1031-1037.
[10]孟奥,赵庆军,徐桓,等.基于Matlab实现MRI信噪比及图像均匀性自动检测系统的研究[J].中国医学装备,2018,15(3):29-32.