河南城建学院本科毕业设计( 论文) 摘要 1 毕业论文太阳能热水器水位控制系统设计河南城建学院本科毕业设计( 论文) 摘要 2 摘要本设计主要设计了一个基于单片机的太阳能热水器水位控制系统。设计以单片机为核心,配合电阻型 4 档水位传感器、 8255A 扩展键盘和显示器件、以及电磁阀、报警等外围器件,从而完成对太阳能热水器容器内的水位测量及控制; 时间显示;缺水时自动上水;水满报警;手动上水等功能。本文主要进行时钟电路、电源电路、键盘输入电路、传感器电路、显示电路的设计, 以及硬件选择和系统软件设计。本文在已有的太阳能热水器的技术的基础上, 采用单片机对热水器水位控制, 通过合理的选择和设计, 提高了水位传感器的控制水平, 改善了热水器的实际使用功能, 从而使太阳能热水器水位控制达到了较为理想的效果。关键词:太阳能热水器,水位控制,单片机,传感器河南城建学院本科毕业设计( 论文) 英文摘要 III Abstract This article mainly designed am onolithic integrated circuits, the control system of the solar water heaters .It take the microcontroller integrated circuit as the core, the coordinate 4 grades of waters level resistance sensor, the 8255A expansion keyboard and the ponent, the solenoid valve, warning , and other ponent, pletes tot he water level measure and demonstra te; the time demonstrat e;l ack of water automatically upstream, the water overflow warn ,m anual water function and so on. This article mainly for clock circuit, power supply circuits, the keyboard to enter the circuit, sensor circuit, display of the circuit design , and hardware and system choice of software article in the given solar water heaters technology on the basis ofa monolithic integrated circuits to control through the water heater and reasonable options and design, and improve the control of the sensor and improved the actual use to make solar water heaters under the water came toa desirable effect. Key word : S olar water heaters , The water control , Monolithic integrated circuits , Sensors 河南城建学院本科毕业设计( 论文) 目录 IV 目录摘要............................................................................................................................ I Abstract (英文摘要) ............................................................................................... II 第一章绪论................................................................................................................... 1 课题的目的及意义....................................................................................
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