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单片机多生理参数监护仪的设计(终稿)-毕业论文.doc
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单片机多生理参数监护仪的设计(终稿)-毕业论文.doc
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毕业设计说明书
题 目:
学 院:
专 业: 机械设计制造及其自动化
学 号:
姓 名:
指导教师:
完成日期:
1
目 录
中文摘
要···························································
··········································1
ABSTRACT··················································
··············································2
第一章 绪
论···························································
····································1
1.1 各生信号的意
义···························································
·······················1
1.1.1 心电
图···························································
···························1
1.1.2 血
压···························································
······························2
1.1.3 脉
率···························································
······························3
1.1.4 脉 搏 血 氧 饱 和
度···························································
··············4
1.2 生 理 参 数 监 护 技 术 的 发
展···························································
··········5
1.2.1 心 电 监 护 仪 器 的 发
展···························································
········5
1.2.2 无 创 血 压 测 量 技 术 的 发
展···························································
··5
1.2.3 脉 搏 血 氧 饱 和 度 测 量 技 术 的 发
2
展···················································7
1.2.4 多 生 理 信 号 监 护 仪 的 发
展···························································
··8
1.3 本 课 题 的 设 计 内 容 及 意
义···························································
···········9
第 二 章 生 理 参 数 检 测 电
路···························································
·············10
2.1 心 电 信 号 检
测···························································
·························10
2.2 血 压 信 号 检
测···························································
·························12
2.3 脉 搏 血 氧 信 号 检
测···························································
···················15
2.3.1 脉 搏 SO
2
测 量 的 基 本 原
理···························································
15
2.3.2 脉 搏 血 氧 信 号 检 测 电
路···························································
···19
2.4 基 于 ADµC84 × 的 高 分 辨 率 检 测 电
路····················································24
2.4.1 过 采 样 技 术 提 高 系 统 信 噪
比························································25
2.4.2 量 化 噪 声 成 形 技 术 提 高 系 统 信 噪
比··············································25
2.4.3 数 字 抽 取 滤
波···························································
3
················26
第 三 章 四 生 理 参 数 的 处
理···························································
·············28
3.1 平 滑 滤 波 在 心 电 模 块 中 的 应
用···························································
···28
3.2 数 学 形 态 滤 波 在 血 压 模 块 中 的 应
用·······················································28
3.2.1 数 学 形 态 滤 波 的 原 理 、 定 义 及 作
用···············································29
3.2.2 数 学 形 态 滤 波 算 法 的 应
用···························································
30
3.3 血 压 模 块 中 的 测 定 算
法···························································
············30
3.3.1 平 均 压 的 确 定 算
法···························································
··········30
3.3.2 收 缩 压 和 舒 张 压 的 确 定 算
法························································32
3.3.3 脉 率 的 计
算···························································
···················34
第 四 章 系 统 硬 件 设
计···························································
·····················35
4.1 系 统 总 体 设
计···························································
·························35
4.2 系 统 硬 件 设
4
计···························································
·························36
4.2.1 核 心 微 处 理 器 ADµC84
×···························································
·36
4.2.2 液 晶 LCD 模
块···························································
···············37
4.2.3 按
键···························································
·····························40
4.2.4 单 片 机 接
口···························································
····················41
第 五 章 系 统 软 件 设
计···························································
·····················42
5.1 系 统 软 件 整 体 结
构···························································
···················42
5.2 硬 件 程 序 驱 动 程
序···························································
···················43
5.2.1 液 晶 LCD 驱 动 程
序···························································
·········43
5.2.2 按 键 驱 动 程
序···························································
·················44
5.3 主 控 模 块 及 功 能 模
块···························································
················44
5.3.1 主 控 程
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