摘要
社会和科学技术的发展带给了我们高质量的生活,但在复杂而紧张的社会变革中,人们承受的压力也在增加。因此,有必要研制一种脑电装置去改善人们的精神状态。本文提出了一种设计智能脑电治疗仪的系统方案,以单片机为核心控制模块,辅以D/A、A/D成为全反馈闭环系统,使用液晶显示器为终端显示设备,实现数字合成动态负载恒流输出。本文首先介绍系统的总体结构,并详细阐述了各个主要功能模块的工作原理、软件设计思想等,最后给出了系统的设计结果。
The rapidly developed society and technology has brought high quality life to us human beings, but the pressure we should endure is increasing with the society modification which is full with complexity and tension. Therefore, it is necessary to develop one kind of brain electricity installment to improve people＇s state of mind. A system design of the circulation function therapeutic instrument of brain is presented in this paper. An integrated prototype is composed of AT89C55 used as system controlling module and A/D,D/A convertor and liquid crystal display device used as a terminal display module to realize the output of dynamic load and permanent flow through digital synthesis. This paper discusses the whole structure of system, and presents in detail the working principle, idea of the software design, and the effectiveness of the design.
出处
《电子测试》
2009年第1期57-60,共4页
Electronic Test
关键词
脑电
直接数字频率合成
电刺激
EEG
direct digital synthesis
electric stimulation
