基于单片机对氧气浓度检测控制系统

字数:7632,页数:21  论文编号:JD343 

【摘要】
    本文基于单片机完成自动化控制，较好的实现了对气体检测的自动化控制。利用高性能低价格的单片机设计氧气浓度检测及氧气浓度控制系统，该系统充分利用所学单片机的各种知识和设计方法，使系统更稳定、更可靠，可以使氧气浓度检测及浓度氧气控制系统更加清楚明了，并且根据实际应用完成自动控制过程使其得到扩展和更广泛应用。
本氧气浓度检测系统由系统控制部分、氧气检测部分、模拟数字量转换部分、报警电路、氧气发生控制装置、有害气体吸收装置、氧气吸收装置、显示部分及指示灯电路组成。全系统以模拟电路为主，配合数字电路控制，全系统通过AT89S51（单片机）进行精密控制，氧气浓度检测通过控制单元及辅助电路进行严密计算输出数字量并显示，浓度达到设定报警限值时，系统通过AT89S51进行控制报警，产生氧气或吸收氧气使氧气浓度正常系统通过控制关闭相应的部分电路，完成自动化控制功能，通过论证该系统能较好的完成氧气检测并能在变化的环境中使用，通过调试与测量完成了题目的要求很好的实现了功能。
【关键字】氧气检测系统  自动控制 AT89S51(单片机)

【Abstract】
 Based on the MCU to complete automation, the better to achieve the gas detection automatic control. Use of high-performance low-cost MCU design and testing of oxygen concentration of oxygen concentration control system, which fully utilize the knowledge of the various microcontroller and design methods, making the system more stable and reliable, so that oxygen concentration can be detected and The concentration of oxygen control system more clear and complete control according to the actual application process to be expanded and more widely used.
  The concentration of oxygen detection system by system control of the oxygen detection of the analog-to-digital conversion of part of alarm circuits, oxygen in control devices, devices absorb harmful gases, oxygen absorption device, and show some light circuit. System-wide to the main analog circuit, with digital control, system-wide through AT89S51 (SCM) precision control, oxygen concentration detected by the control unit and auxiliary circuit is tight and calculation of the output figures show that the concentration of restrictions set alarm Value, the control system through the AT89S51 alarm, produce oxygen or oxygen absorption system so that the normal concentration of oxygen by controlling the closure of the corresponding part of circuit, complete automation control, through the demonstration of the system to better detect and oxygen can be completed in a changing environment The use of debugging and measurement through the completion of the requirements of the subject has very good function.
【Keyword】 oxygen detection system control AT89S51 (SCM)

目    录
【摘要】 1
【Abstract】 2
第一章  绪论 3
1.1  氧气检测的研究背景及研究意义 3
第二章 单片机简介 5
2.1单片机简介 5
第三章 氧气浓度检测控制系统 6
3.1 系统功能 6
3.3制定控制方案 8
3.4系统配置 9
3.5 工作原理 11
3.6程序设计清单 12
3.7设计原理图 18
第四章  设计整体调试 19
4.1 软件调试 19
4.2 硬件调试 19
第五章 结束语 20
第六章参考文献 21