基于GSM技术的多点温度巡回检测系统毕业专业论文.docVIP

基于GSM技术的多点温度巡回检测系统 摘 要 在工、农业生产和日常生活中，对温度的测量及控制占据着极其重要地位。多点温度巡回检测系统在很多方面发挥着重要作用。本课题所设计的基于GSM技术的多点温度巡回检测系统对于多点温度检测具有很强的实用价值。它可以实时监测各点温度，并判断温度是否超过报警温度值，若温度过高则可以通过GSM模块向控制中心（如连接有GSM模块的PC机或移动终端手机）发出温度报警短信。该系统还可以自动检测传感器故障并通过短信通知控制中心及时更新传感器。 该报警系统由单片机控制器、键盘输入、液晶显示、温度传感器、串口通信、短信猫(GSM)模块、被叫号码存储器及电源等部分组成。 单片机控制器采用STC12C5410AD单片机，是整个系统的核心，负责温度数据读入处理、键盘值输入、输出显示、通过串口与短信猫通信等一系列的程序动作。单片机中工作参数及功能设定由键盘输入电路完成。液晶显示屏用来显示参数设定时的数据和功能的提示等。被叫号码存储由STC12C54AD单片机的自带EEPROM完成，掉电后设定号码不丢失。 温度检测电路采用DS18B20。DS18B20是一种可组网的高精度数字式温度传感器，由于其具有单总线的独特优点，可以使用户轻松地组建起传感器网络，并可使多点巡回温度测量电路变得简单、可靠。 关键词：多点温度巡回检测 单片机 温度传感器 串口通信 短信猫 单总线 Abstract In the industrial and agricultural production and daily life, the temperature measurement and control occupy a vital position. Multi-point temperature Tour detection system in all aspects of the application areas: electrical fire temperature of the non-destructive testing, electricity, telecommunications equipment overheating fault predict detection, air-conditioning systems, temperature test, different modes of transport of components overheating detection, protection Application and surveillance systems, medical consultation with the temperature-testing, chemicals, machinery and other equipment… overheated temperature detection. Temperature detection system applications are very broad. I design based on GSM technology tour of the multi-point temperature detection system for multi-point temperature detected a strong practical value. It can monitor real-time temperature, and determine whether the temperature alarm over temperature, if the temperature is too high you can GSM module to the control centre (such as GSM modules are connected PC or mobile phone terminals) a temperature alarm message. The system also can automatically detect sensor fault and informed the control centre via SMS to update the sensor. The alarm system from SCM controller, keyboard input, liquid crystal display, temperature sensor, serial communications, GSM module, the des