基于单片机的多点无线温度检测系统.docx

摘要 摘要 PAGE IV PAGE III 摘 要 本文设计了一套可用于对多点测温并报警的方案，该方案通过DS18B20温度传感器来实现对环境温度的测量并将测量得到的数据通过ZigBee通信模块发送控制中心。本套设计方案采用51单片机作为系统的主控芯片，搭配LCD显示屏、温度传感器、ZigBee通信模块及其他外围I/O设备，通过对方案的多方论证，最终，实现了多点测温报警系统。 在进行实物测试过程中可以看到通过对温度传感器加热，LCD显示屏上的数据进行实时变化，通过按键可以对温度的阈值进行设置，同时系统设置了断电保存功能，这样可以避免断电后重新设置阈值参数的问题，当任一个温度测量点产生超出阈值的情况，就会触发控制中心的报警装置。各测温点通过ZigBee通信模块将数据传送给控制中心，最终系统功能测试符合设计要求。 关键词：多点测温；阈值报警；ZigBee通信模块；断电保存 ABSTRACT ABSTRACT ABSTRACT This paper designs a set of scheme which can be used for multi-point temperature measurement and alarm. This scheme realizes the measurement of ambient temperature through DS18B20 temperature sensor and sends the measured data to the control center through ZigBee communication module. This set of design scheme uses 51 MCU as the main control chip of the system, with LCD display, temperature sensor, ZigBee communication module and other peripheral I/O equipment. Through multi-party demonstration of the scheme, the multi-point temperature measurement and alarm system is finally realized. In the process of physical tests can see through to the heating temperature sensor, the data on the LCD display the real-time change, through the button to set the threshold value of temperature, the system set up power save function at the same time, this can avoid to reset when the power is the problem of threshold parameter, when the threshold value is beyond any temperature measurement point, It triggers an alarm in the control center. Each temperature measuring point transmits data to the control center through the ZigBee communication module, and the final system function test meets the design requirements. Key words: multi-point temperature measurement; Threshold alarm; ZigBee communication module; Power saving 目录 目录 目 录 TOC \o 1-3 \h \z \u 第1章 绪论 1 1.1 论文研究的背景及意义 1 1.2 国内外研究现状 1 1.3 论文的结构安排 1 第2章 方案论证 3 2.1 系统设计方案 3 2.2 主控模块选型 3 2.3 温度传感器选型 6 2.4 通信模块选型 8 2.5 显示模块选型 9 第3章 硬件电路的设计 12 3.1 单片机 12 3.1.1 单片机的应用 12 3.1.2 系统时钟电