【正文】 ......................... 1 簡單的機(jī)械控制方式 ................................................ 1 復(fù)雜的控制系統(tǒng)控制方式 ............................................ 1 2 液位自動控制系統(tǒng)原理 .................................................. 1 液位控制系統(tǒng)的組成 ................................................ 1 工作原理 .......................................................... 2 3 液位自動控制硬件設(shè)計(jì) .................................................. 2 單片機(jī) ............................................................ 2 復(fù)位電路和晶振電路 ................................................ 3 傳感器 ............................................................ 4 液晶顯示 .......................................................... 4 按鍵電路 .......................................................... 5 繼電器控制電路 .................................................... 6 4 液位自動控制軟件設(shè)計(jì) .................................................. 6 系統(tǒng)主程序設(shè)計(jì) .................................................... 6 A/D 轉(zhuǎn)換程序 ...................................................... 7 5 結(jié)果與總結(jié) ............................................................ 8 仿真結(jié)果 .......................................................... 8 實(shí)物制作結(jié)果 ...................................................... 8 總結(jié) .............................................................. 9 參 考 文 獻(xiàn) ............................................................. 10 致 謝 .................................................................. 11 附錄 .................................................................... 12 2021 屆 機(jī)械工程及自動化 專業(yè)學(xué)士學(xué)位畢業(yè)論文（設(shè)計(jì)） 中文摘要 I 摘 要 在我們生活和生產(chǎn)中對液位的控制有著廣泛的運(yùn)用 。 比如民用的蓄水池的供水，如果水位過低過高，都會影響到我們的用水。本文主要是設(shè)計(jì)一種液位自動控制系統(tǒng)，它是以 AT89S52作為控制器，通過 89S52 單片機(jī)、壓力傳感器、 ADC0832 模數(shù)轉(zhuǎn)換器和液晶顯示器等硬件系統(tǒng)和軟件設(shè)計(jì)的方法，實(shí)現(xiàn)液位的自動控制。本設(shè)計(jì)用單片機(jī)控制繼電器的動作，實(shí)現(xiàn)進(jìn)水電機(jī)的啟動和停止。 關(guān)鍵詞： 單片機(jī) ； 液位控制 ； 顯示 ； 模數(shù)轉(zhuǎn)換 2021 屆 機(jī)械工程及自動化 專業(yè)學(xué)士學(xué)位畢業(yè)論文（設(shè)計(jì)） 英文摘要 II Abstract In our life and production of liquid level control is widely used. Civil water supply of reservoir, for example, if the low water level is too high, will affect our water. He Shi so we need to design the controller automatically adjust the water flow, to keep its normal level. This paper is to design a kind of liquid level automatic control system, it was based on the AT89S52 as the controller, through the 89 s52 microcontroller, pressure sensor, converter ADC0832 modulus and liquid crystal displays and other hardware system and software design method, realize the liquid level automatic control. Have detection alarm and control functions, and can be carried out on the liquid level display. This design with the single chip microputer control relay action, realize the motor start and stop the water. The system is easy to operate, and has simple structure, low cost, easy program debugging, etc. Key words： single chip microputer； Liquid level control； Display； Analogtodigital conversion 2021 屆 機(jī)械工程及自動化 專業(yè)學(xué)士學(xué)位畢業(yè)論文（設(shè)計(jì)）