毕业设计（论文）-基于AT89C51单片机的恒压供水系统控制器的设计_精品.doc

恒压供水系统控制器的设计 摘 要 随着我国经济的快速发展，高层建筑越来越多，这为高层建筑的供水提出了挑战，传统的通过水塔、气压增压等供水方式不仅设备投资大，占地面积大，维修困难，水压不稳定，使得难以满足高层建筑的需要。恒压供水系统具有供水安全、节约能源、节省钢材、节省占地、节省投资、调节能力大、运行稳定可靠的优势，具有广阔的应用前景和明显的经济效益与社会效益。所以某些用水区采用恒压供水系统，具有较大的经济和社会意义。 本设计以单片机AT89C51做为控制并协调整个系统的工作，The Controller Design of Constant Pressure Water Supply System ABSTRACT With Chinas rapid economic development, more and more high-rise buildings, which the water supply for the high-rise buildings posed a challenge to the traditional through the towers, air pressure and other pressurized water supply not only the equipment investment, covers an area of ??major maintenance problems, water pressure instability, makes it difficult to meet the needs of high-rise buildings. Constant pressure water supply system has the water supply security, energy conservation, save steel, saving land, saving investment, adjustment capacity, the advantages of stable and reliable, and has broad prospects and significant economic and social benefits. So some of the water area with constant water supply system, with great economic and social significance. AT89C51 microcontroller as the control design and coordinate the core of the work of the entire system, through the pressure sensor detecting the current water pressure, the pressure sensor output is 0 ~ 5V analog, to go through the A / D converted into digital and then sent to microcontroller AT89C51 processed, handled by the microcontroller on the LED digital display the current pressure value. Button to set the desired control pressure, the microcontroller setting the internal pressure and by comparing the current pressure, current pressure is less than the set pressure will be closed when the electromagnetic switch, open the electrical device, and start the alarm. Above the set pressure switch off the motor stops rotating. Constant pressure and set the value in the detection, to control purposes. Key words: constant pressure water supply, sensor, microcontroller 目 录 摘 要 I ABSTRACT II 1 前