环境信息监测系统下位机设计

论文编号:DZXX438  论文字数:11491,页数:37  附任务书，开题报告，外文翻译

环境信息监测系统下位机设计

摘要：随着当今社会生产力的发展，人们生活水平的不断提高，人们对环境信息收集的各方面要求也随之提高。然而由于复杂的环境因素的变化，各种数据的多样性、复杂性、不稳定性也越来越难以进行的人工测量。
 随着单片机技术的迅速发展，单片机越来越普遍的应用在各行各业，单片机的优势也越来越明显，它具有体积小，智能化的优点，此次课题设计即是利用了单片机的这些优点而设计的一个智能化的环境监测系统。环境信息监测系统的出现使得对于环境数据的收集形成信息化、自动化、共享化，显著的提高了数据采集系统的性能并大幅度的减少了成本，适应了现代环境检测的要求。并且能够根据具体要求稍加修改，本系统可适用于气象、电力、水文等需要实时检测的各个部门。
 环境信息监测系统下位机对环境中的湿度、温度以及空气中的烟雾浓度等数据进行采集，以AT89C51单片机为核心，利用智能化传感器对所采集的温度、湿度、烟雾浓度进行传递，通过RS485总线与上位机进行数据通信反馈。再配以相应的外围接口电路，可对数据进行实时的操作处理。

关键词：环境  下位机   AT89C51  智能化  

Environment Information Monitoring System Lower Plane Design
 
Abstract: With the development of social productive force, improvement of people's living standard, people on all aspects of environmental information collection requirements increases. However, due to the complex environment factors change, the diversity and complexity of the data, not stability also more and more difficult for artificial measurement.
 With the rapid development of single-chip computer technology, the application of SCM is becoming more common in all walks of life, SCM advantage is becoming more and more obvious, it has the advantages of small size, intelligent design, the topic is used a single chip these advantages and design of a intelligent environment monitoring system. The emergence of environment information monitoring system for environmental data collection makes form informationization, automation, sharing, dramatically increasing the data acquisition system performance and greatly reduce the cost and adapt to the modern environmental testing requirements. And can according to specific requirements slightly modified, this system can be applied to weather, electric power, hydrological need for real-time detection of each department.
 Environmental information monitoring system for environmental humidity in the place machine smoke in the air, temperature and concentration of data collecting, with AT89C51, using intelligent sensor for acquisition of the temperature, humidity, smog density to convey, through RS485 bus and superordination machine data communication feedback. Match again with the corresponding peripheral interface circuit, may to the operation of real-time data processing.
 
Keywords:   environment     lower plane     AT89C51     intellige
                         

目   录
第一章 绪论 2
第二章 系统组成及工作原理 4
2.1 系统总体组成 4
第三章 硬件电路设计 5
3.1 微处理器基本系统模块 5
3.2 系统显示模块 7
3.3 报警模块 9
3.4 A/D转换模块 10
3.5 系统温度监测模块 13
3.6 系统空气浓度监测模块 17
3.7 系统大气湿度监测模块 18
3.8 串行总线 19
第四章 系统软件设计 21
4.1 主程序设计 21
4.2 键盘显示子程序 22
4.3 温度采集子程序 23
4.4湿度采集子程序 24
第五章   系统调试 25
5.1系统硬件调试 25
第六章  总结 27
参考文献 28
附    录 29

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