1、 I 毕业设计（论文）说明书毕业设计（论文）说明书 多点数字温度计设计 II 摘要摘要 在人类的生活环境中，温度扮演着极其重要的角色。无论你生活在哪里，从 事什么工作，无时无刻不在与温度打着交道。自18世纪工业革命以来，工业发展 对是否能掌握温度有着绝对的联系。在冶金、钢铁、石化、水泥、玻璃、医药等 等行业，可以说几乎80%的工业部门都不得不考虑着温度的因素。随着现代信息 技术的飞速发展和传统工业改造的逐步实现， 能够独立工作的温度检测和显示系 统应用于诸多领域。这里设计的数字温度计具有读数方便，测温范围广，测温精 确，数字显示，适用范围宽等特点。 本次多点数字温度计设计采用 AT89C51
2、单片机作为控制核心， 使用闸刀开关 设计控制电路，采用 DS18B20 温度传感器采集温度，结合 LCD 显示屏和 74HC00 芯片实现温度的数字显示。硬件电路设计主要包括中央处理单元电路、 闸刀开关 电路以及温度收集电路。软件程序设计则采用汇编语言实现。本设计的测量温度 范围为 0 C 到 70 C、采集的温度分辨率为 0.1 C 以及能显示 10 个温度探 测点的当前采集温度。实现了采集和显示 10 个温度探测点的当前温度的功能， 达到了设计的要求和目的,并在 Proteus 软件上进行了仿真和调试。 关键词关键词：数字温度计；AT89C51； 74HC00 III Abstract I
3、n human life environment, the temperature is playing an extremely important role. No matter where you live, engaged in any work, ever-present and temperature dealt with. Since the eighteenth century since the industrial revolution, industrial development to whether can master has absolute temperatur
4、e of contact. In metallurgy, steel, petrochemical, cement, glass, medicine industry and so on, it can be said that almost 80% of industrial department have to consider the factors of temperature. With the rapid development of modern information technology and traditional industrial transformation gr
5、adually realize, able to work independently temperature detection and display system applied to many fields. Along with the rapid development of modern information technology and traditional industrial transformation gradually realize, ability to work independently temperature detection and display
6、system applied to many fields. Here is the thermometer designed digital readouts convenient, temperature measuring range, temperature measurement precision, digital display, wide application scope, etc. The more digital thermometer design use the AT89C51 microcontroller as control core, use the knife switch design the control circuit, use the temperature sensor DS18B20 collection temperature, combined with LCD screen and 74 HC00 chip realize temperature of the digital display. Hardware
