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51单片机便携式智能电疗仪设计+电路图+源代码(2)

时间:2018-12-30 20:34来源:毕业论文
The graduation design is mainly pided into five parts: electrotherapy principle are introduced in this paper, the overall design plan, hardware design, software design, a printed circuit board (PCB. T


    The graduation design is mainly pided into five parts: electrotherapy principle are introduced in this paper, the overall design plan, hardware design, software design, a printed circuit board (PCB. The five most indispensable, electrotherapy principle introduction and description is theoretical foundation of electrotherapy instrument design; overall design scheme proposed is in the premise of careful analysis of the design task, access to relevant literature, to draw up preliminary design content, directions and steps to carry out the specific design is quite important a preparatory work is behind the design work can orderly and methodical; hardware design and the software design is the highlight of this graduation design, the hardware design is based software design, software design and hardware design and Realization of the function of the necessary conditions. The joint debugging and simulation is a crucial step; the last step is the simulation of a printed circuit board (PCB).
[keyword] AT89S51, microcontroller, electrotherapy, hardware design, software design
目    录
摘要    I
Abstract    II
1 前言    1
1.1问题的提出    1
1.2电疗仪的特点及应用    2
1.3电疗仪的历史与发展    3
2 电疗仪原理    6
2.1 治疗机理    6
2.1.1 神经肌肉兴奋的原理    6
2.1.2 镇痛原理与即时镇痛    6
2.1.3 电疗仪治疗原理    7
2.2 电路原理    7
2.2.1 电疗仪总体系统结构    7
2.2.2 电疗仪电路组成及功能    8
2.3小结    9
3 总体设计方案    10
3.1电疗仪设计目标及要求    10
3.2电疗仪设计方案分析    10
3.3小结    11
4 硬件设计    12
4.1 低功耗设计    12
4.2 MCU选型    13
4.3电源设计    17
4.4键盘输入系统    17
4.5波形输出电路    19
4.5.1 DAC设计    19
4.5.2运放器的设计    22
4.6显示输出系统    23
4.6.1信号灯显示电路    23
4.6.2 LCD参数显示电路    24
4.7小结    27
5 PCB印刷电路板    29
5.1 PCB设计流程    29
5.2 PCB板的布线图    30
5.3 PCB板的3D效果图    30
5.4小结    31
6 软件设计    32
6.1软件设计规则    32
6.2流程图    33
6.2.1主流程图    33
6.2.2波形输出    34
6.2.3按键操作功能    34
6.2.4 LCD显示    34
6.3小结    38
7 KEIL与Proteus联合调试与仿真    39
7.1联合调试步骤    39
7.2仿真结果    39
7.3小结    44
8 总结    45
参考文献    46
附录Ⅰ    48
附录Ⅱ    49
致  谢    59
1 前言
1.1问题的提出
  据世界卫生组织的有效统计数据显示:在全世界的病人中, 由于用药不当而导致患者死亡的约占三分之一[1]。导致这种现象主要是由多种多样的因素影响所致, 其中有一部分原因就是患者在患病时选药和用药量方面都难以把握分寸。当代医药工作者正寻找着一种与常规的内服或注射药物有所不同的医疗方法,这种医疗方法往往更加安全有效,治疗途径往往采用并不常规的方法,而医疗工作者正将这种治疗途径作为自己重要研究课题。电疗仪是医疗仪器的一种。它是以生理学为基础,中医经络学为原理,采用适当电量,运用各种方法方式,用电能刺激经络,从而使电能能够迅速传导,瞬间打通人体各种受损、萎缩的经络,畅通人体的气血,肌体的免疫功能也会因此而得到增强,从而能够达到预防疾病、治疗疾病的目的。 51单片机便携式智能电疗仪设计+电路图+源代码(2):http://www.youerw.com/zidonghua/lunwen_28488.html
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