基于ARM的水污染检测系统的研究

发布时间：2018-04-25 20:29

本文选题：ARM + PH　；参考：《安徽理工大学》2016年硕士论文

【摘要】：随着社会的发展,人口集聚膨胀导致环境问题日益严重,生存环境恶化已经严重影响到人类的生产生活。环境问题已成为社会热门话题,对于环境的治理刻不容缓,而水污染问题尤为突出。对于水体污染问题的治理,首先要对水体污染物进行检测,而先进的水污染检测系统将有助于问题的解决。水污染的检测包含众多检测参数,主要有化学需氧量(COD)、重金属元素、PH值、温度等。当前国内外的许多水污染物检测设备的精度不高、检测物质单一、检测方法繁杂、无法通过网络进行在线监测。本课题将着重研究水污染检测系统,对于存在的问题做了很大的改善。它将采用基于ARM内核的处理器,以及设计了一系列的外围电路搭建整个检测系统的硬件电路框架,包括电源、存储芯片、LCD、网卡芯片以及信号处理电路等,同时系统还设计了JTAG接口用于系统的调试,方便系统的开发。整个系统将采用嵌入式Linux操作系统实现检测系统实现了多任务、智能化、网络化的要求。该系统采用三星的S3C2440为主控芯片,通过TI公司的ADS8371芯片转换各类水污染检测传感器采集到的数据,通过网卡芯片与上位机相连,实现了在线检测和数据存储,还可以将采集到的数据存储于系统自带的存储芯片中,在没有上位机工作的情况下系统正常实现检测任务。嵌入式系统软件设计详细分析了Bootloader、Linux的裁剪移植和根文件系统的制作,是整个系统的正常运行必不可少的部分,检测系统还要实现必要的应用程序,以满足不同的需求。整个系统的开发完成以后,通过实验来完成对水体污染物检测。以化学需氧量和重金属为例,将作为检测对象,通过实际的检测来模拟系统的一般工作状况,辅以数学方法计算出检测结果,在与检测的结果相比较验证系统的可行性。
[Abstract]:With the development of society, the agglomeration of population leads to increasingly serious environmental problems, and the deterioration of the living environment has seriously affected the production and life of human beings. Environmental problem has become a hot topic in the society. It is urgent to control the environment, and the water pollution problem is especially prominent. For the treatment of water pollution, the first step is to detect the water pollution, and the advanced water pollution detection system will be helpful to solve the problem. The detection of water pollution includes many parameters, such as chemical oxygen demand (COD), heavy metal pH, temperature and so on. At present, many water pollutant detection equipments at home and abroad have low precision, single detection material and complicated detection methods, which can not be monitored online through network. This subject will focus on the study of water pollution detection system, the existing problems have been greatly improved. It will adopt the processor based on ARM kernel, and design a series of peripheral circuits to build the hardware circuit frame of the whole detection system, including power supply, memory chip LCD, network card chip and signal processing circuit, etc. At the same time, the JTAG interface is designed to debug the system, which is convenient for the development of the system. The whole system adopts the embedded Linux operating system to realize the multi-task, intelligent and network requirement. The system uses S3C2440 of Samsung as the main control chip, converts the data collected by various water pollution detection sensors through the ADS8371 chip of TI Company, and connects with the host computer through the network card chip, realizes on-line detection and data storage. The collected data can also be stored in the system's own memory chip, and the system can normally realize the detection task without the upper computer working. The software design of embedded system analyzes in detail the cutting and transplanting of Bootloadern Linux and the making of root file system, which is an essential part of the normal operation of the whole system. The detection system also needs to realize the necessary application program to meet different requirements. After the development of the whole system, the detection of water pollutants is completed through experiments. Taking chemical oxygen demand (COD) and heavy metal as examples, this paper simulates the general working condition of the system through actual detection, and calculates the test result by mathematical method, and verifies the feasibility of the system compared with the test result.
【学位授予单位】：安徽理工大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：X84

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