基于ARM7半自动生化分析仪的研究与设计_硕士学位.doc

摘 要

生化分析仪是一种集光、机、电和医于一体的医疗临床诊断设备，主要用于

临床检验人体血液和其他体液中的各种生化指标。当人体组织发生病变时,病人体

液中的生化指标将会发生变化,准确而快速的检测出这些生化指标,可以为医生诊

断和确定病人病情提供科学的依据。随着科学技术和人类社会的不断发展，检测

快速、操作简单直观、低成本、高性能小型生化分析仪是近年来一个重要的发展

方向。

本文通过了解生化分析仪原理和生化测试基础，根据生化分析仪所要达到的

性能指标，设计半自动化生化分析仪控制系统的总体结构，对硬件和软件功能做

及仿真调试工具 H-JTAG；按照系统功能要求和模块化程序思想，设计了显示模

块、键盘处理、A/D 转换模块、实时时钟和温度控制模块等。同时本文还论述了

程序调试的一般方法，在软件设计和调试过程中的问题，总结了一些的解决方案。

最后对整个系统相关功能模块进行实验测试，并对测试结果进行了误差分析。

上述研发成果通过试验室仿真调试证实了有效性和实用价值，为本生化分析仪最

终完成以及以后的研究开发打下了良好的基础，其中系统的任务调度方法和生化

分析方法，具有一定的应用和推广价值。

关键词：生化分析仪；LPC2124；嵌入式；ADS；生化测试；抗干扰

ABSTRACT

The biochemical analyzer is an instrument including optics, mechanics ，

operation and low cost have become an important direction of development in recent

years.

Studying though the principles of biochemical analysis and the basis of

biochemical test, and according to the performance indicators of the biochemical

analyzer to be achieved, the architectures of control system of the biochemical

analyzer is designed, and a clear and reasonable distribution for the hardware and

software functions is made.

Based on embedded technology as the core, thoroughly studied the ARM system

structure ,an intelligent semiautomatic clinical chemistry analyzer is designed by using

LPC2124 ARM7 EMPU. The control methods of various functional modules of

According the functional requirements of the system and modularization method of

programming, the display module, keyboard handling, A / D converter module,

real-time clock , temperature control module and the other module are designed. At the

same time, this paper also discusses the general method of debugging in the software

design and debug and sums up a number of solutions.

Finally, some function modules related to the whole system have been

experimented and tested. At the same time carried on the error analysis to the test result.

The aforesaid research and research and develop achievement’s validity and pratical

value have been proved by laboratory simulation. This has laid a good foundation for

final completion of the semiautomatic biochemical analyzer and the future development

ABSTRACT...........................................................II

第一章 绪论.......................................................1

1.1 引言 ........................................................1

1.2 国内外的分类以及研究现状与趋势 ..............................1

1.3 本文研究的意义和主要内容 ....................................3

1.4 本章小结 ....................................................4

第二章 生化分析仪的原理和结构.....................................5

2.1 引言 ........................................................5

2.2 生化测试基础 ................................................5

第三章 半自动生化分析仪的硬件设计................................12

3.1 嵌入式处理器 LPC2124 简介 ...................................12

3.2 LPC2124 控制器的外围电路的设计 ..............................14

4.2 生化分析仪的软件结构 .......................................35

4.3 生化分析仪的程序设计 .......................................37

5.2 实验结果和分析 .............................................49

第六章 总结和展望................................................49

6.1 论文工作的总结 .............................................49

6.2 未来工作的展望 .............................................49

参考文献...........................................................49

攻读硕士学位期间发表的学术论文.....................................49

致 谢............................................................49