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来源：百度知道 编辑：UC知道 时间：2024/05/06 18:32:10
本论文详细介绍了智能温度控制系统中键盘与报警控制系统的设计。下位机主要负责采集现场的模拟量，经模拟开关送入A/D转换器转换为数字量，存储并传送给上位机。键盘与报警控制系统的设计是下位机硬件设计模块的一个重点。单线数字温度传感器DS18B20，湿度、烟雾、红外传感器在上位机中用VB显示实时温度曲线、测量值以及各路温度的实时变化。通过键盘的设计来设定温度的上下限。本设计单元由STC12C2052、上拉电阻、按键、电容等部分构成。系统的功能选择由SB1、SB2、SB3、SB4 完成个轻触按钮开关，采用的是独立式按钮开关，这种方法比较直观，而且比较简单，在按。本设计有4键数量不多的场合下使用很广泛。报警控制模块则进行实时温度与上下限的比较从而启动相应的报警装置进行报警。
限于篇幅要求以及为了突出本设计单元重点，本文简要讨论了上位机工作原理，温度传感器的选择，A/D转换模块，显示模块，下位单片机与PC机的串口通讯等基本原理

This thesis was detailed to introduce the intelligence temperature control system in the keyboard with report to the police the design of control the system.The next machine mainly is responsible for the amount of emulation that collects the spot, through imitate the switch to send into the A/ D to convert the machine conversion to measure for the numeral, saving deliver also to the place of honor machine.Keyboard with report to the police the design of control the system and is a point of the next machine hardware design mold piece.The numerical temperature of single line spreads the feeling machine DS18B20, degree of humidity, smoke, the red unauthorized biography feeling machine at the convenient VB manifestation of the place of honor machine is solid temperature curve, measured value and each road temperature of solid variety.Pass the design of the keyboard to set the top and bottom limit of the temperature.This design unit pulls the parts, such as electric resistance, key a