(毕业论文)基于单片机的水位监控系统设计.doc

摘 要 水资源已成为中国当前和未来发展重要资源，因此对水资源的合理利用有重要意义。在我国很多地方都需要水位监测，如工厂蓄水池、农田灌溉用的水库、江河水位等等 单片机技术的测控系统以其体积小，可靠性高而被广泛采用。本文对该测控系统进行了分析设计。首先，设计针对系统所使用的单片机的性能和发展情况做了简单介绍；对超声波传感器的原理做了简单分析，对系统使用的模/数转换芯片ADC0809也做了性能方面的简单说明。 其次，论文重点对测控硬件、软件的组成进行了分项、模块化逐步分析设计。对各部分的电路一一进行了介绍，最终实现了该系统的硬件电路。绘制了电路原理图。 关键词：单片机、ADC0809、软件系统、硬件系统 Abstract The water resources has become Chinas current and future development of the important resource,It has important significance for the rational utilization of water resources. In many places of our country need to water level monitoring, such as plant reservoir, reservoirs, irrigation water level and so on, therefore the use of modern means of communication to measure and control the water resources as well as the use of computer management system to realize the acquisition and monitoring of data level monitoring in field level, and water level data storage, in the water level information management platform display, query and so on, is an important means to realize the scientific management of water resources. This paper from the economic and reliability point of view, on the basis of experiment, a device which can realize automatic water level control is designed. Control system of single chip microcomputer technology with its small size, high reliability and is widely used in. The paper analyzes the design of the measurement and control system. First of all, the performance and the development of the design used in the single chip microcomputer is introduced briefly; principle of the ultrasonic sensor to do a simple analysis, the system uses the analog-to-digital conversion chip ADC0809 haalso made the simple description of properties. Secondly, the paper focuses on the measurement and control hardware composition, software for the breakdown, modular design analysis phase. On the part of the circuit one one is introduced, the final realization of the system hardware circuit. Drawing the circuit diagramKeyword: M