水质自动监测系统的研究

发布时间：2018-07-22 20:09

【摘要】：在环境保护的内容中,有一项主要的任务是对水资源的保护。随着环境污染的加重,人们的生活用水受到了极大的影响。因此,对河流、水库、地下水等主要水源的水质进行监测显得尤为重要。虽然我国的国土面积位居世界第三,但由于我国人口众多,人均水资源却相当的匮乏。加之人们在发展科技的同时肆意的破坏环境、污染水资源,各大河流及湖泊的水质安全岌岌可危,已经严重影响到我国社会可持续发展的战略,成为了一项限制社会发展的因素。水质自动监测系统可以实时、准确的检测出当前河段的水质,并将水质中的各参数检测出来上传到环境保护部门,一旦水质出现异常现象,可以及时的采取保护措施。我国政府部门高度重视水质监测项目建设,它是我国对水资源保护的主要技术手段,具有重大的战略意义。在本文中,基于对水质保护的原则,对水质自动监测系统进行了设计,它主要的研究内容有:①基于水质监测系统的需求,对自动监测系统进行整体设计。②为了满足系统正常供电、顺序动作的技术要求,在整体设计的基础上对其电气主回路、控制回路、通信回路以及水气路的设计,并制订了电气回路原理图、水样分析预处理系统图等。③为了使整个监测系统实现一体化控制管理,结合西门子PLC与工控机硬件平台,对杰控组态软件的开发及利用PLC控制基础理论设计并实现系统内部的数据处理、各监测仪器间的数据传递等功能,完成工控PC上控制软件的设计和PLC的I/O点设计。④综合上述的设计思路,实现整个系统的组建工作,构建了一套完整的监测系统,并对系统进行了测试。从测试效果来看,监测的参数准确,并没有出现监测过程中的参数突变现象。测试结果还与当地环保部门水质监测标准数据进行了对比,对比结果验证了系统的可靠性。
[Abstract]:In the content of environmental protection, one of the main tasks is the protection of water resources. With the aggravation of environmental pollution, people's domestic water consumption has been greatly affected. Therefore, it is very important to monitor the water quality of main water sources such as rivers, reservoirs and groundwater. Although our country's land area ranks third in the world, but because of our country's population, per capita water resource is quite scarce. In addition, with the development of science and technology, people wantonly destroy the environment and pollute water resources, and the safety of water quality of major rivers and lakes is at risk, which has seriously affected the strategy of sustainable development of our society. Has become a constraint on social development. The automatic water quality monitoring system can detect the water quality of the current reach in real time, and upload the parameters of the water quality to the environmental protection department. Once the water quality is abnormal, it can take protection measures in time. Government departments in China attach great importance to the construction of water quality monitoring projects, which is the main technical means of water resources protection in China, and has great strategic significance. In this paper, based on the principle of water quality protection, the water quality automatic monitoring system is designed. In order to meet the technical requirements of normal power supply and sequential action of the automatic monitoring system, on the basis of the overall design, the main electric circuit, the control circuit, the communication circuit and the water and air circuit are designed. In order to realize the integrated control and management of the whole monitoring system, the schematic diagram of electric circuit and the system diagram of water sample analysis and pretreatment are worked out. The hardware platform of Siemens PLC and industrial control computer is combined. In this paper, the development of the control configuration software and the design and realization of the data processing in the system and the data transmission among the monitoring instruments by using the basic theory of PLC control are designed and realized. The design of the control software on the industrial control PC and the design of the I / O point of PLC synthesizes the above design ideas, realizes the whole system construction work, has constructed a set of complete monitoring system, and has carried on the test to the system. From the test effect, the parameters of the monitoring are accurate, and there is no parameter mutation in the monitoring process. The test results are also compared with the local environmental protection department water quality monitoring standard data, and the comparison results verify the reliability of the system.
【学位授予单位】：华北电力大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：X84

【相似文献】