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
47页1、III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做为控制核心并协调整个系统的工作,通过压力传感器检测当前水的压力,压力传感器输出的是05V的模拟量,要经过A/D转换成为数字量再送入单片机AT89C51进行处理,通过单片机的处理在LED数码管上显示当前的压力值。按键用来设定想要控制的压力值,单片机在内部通过比较设定的压力和当前压力,当前压力小于设定压力时就会闭合电磁开关,开启电机装置,并开始报警。高于设定压力时断开开关电机停止转动。压力和设定值在时时检测,达到控制目的。关键词:恒压供水,传感器,单片机The Controller Design of Constant Pressure Wa
2、ter Supply System ABSTRACTWith 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, ener
3、gy 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
4、 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
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