基于ZigBee的烟雾温度传感系统设计

毕业设计题目基于ZigBee的烟雾温度传感系统设计学院自动化与电气工程学院专业自动化班级仪器0901学生5645136学号49指导教师王中华二〇一三年六月八日济南大学毕业设计-I-摘要无线传感技术如雨后春笋般日益成熟，其具有成本低、能耗小、无需布线、相互之间没有电气干扰等优点，极大的迎合了公众的节能，使用方便的需求心理。本文设计了一种基于ZigBee技术的烟雾温度传感系统，主要有两部分组成：数据采集系统（无线终端下位机）和数据接收系统（上位机），上位机和下位机呈现一对多的关系。采用CC2430模块通过ZigBee协议实现上位机和下位机数据的无线收发功能。本文根据课题设计任务的要求，完成了烟雾传感器、温度传感器、液晶显示、射频收发模块的选型，设计了由电源模块、传感器模块、数据无线传输模块、串口模块等构成系统的相关电路，制定了数据无线传输通讯协议，编制了相关程序，并进行了相关的实验调试。此无线传感系统性价比较高，适应能力强，复杂度低，极大的提高系统可靠性、灵活性和检测范围，降低系统的成本，具有较好的应用前景。关键词：ZigBee；无线传感系统；下位机；射频收发模块；通讯协议济南大学毕业设计-II-ABSTRACTWirelesssensingtechnologyhavesprungupdaybydaymature.Ithaslowcost,lowenergyconsumption,nowiring,andtheadvantagesofnoelectricalinterferencebetweeneachother,cateringtotheenergysavingofthepublic,convenienttousethepsychologicaldemand.ThispaperdesignedakindofsmoketemperaturesensingsystembasedonZigBeetechnology.Therearetwomajorparts:thedataacquisitionsystem(wirelessterminalsunderamachine)anddatareceivingsystem(PC).Uppermachineandlowermachinepresentsaone-to-manyrelationship.UsingCC2430modulethroughtheZigBeeprotocolimplementationofuppermachineandlowermachinedataradiotransceiverfunctions.Inthispaper,accordingtotherequirementsofprojectdesign,completedthesmokesensor,temperaturesensor,LCDdisplay,rftransceivermoduleselection,designincludingpowersupplymodule,sensormodule,wirelessdatatransmissionmodule,serialportmodulecompositionsystemsuchastherelevantcircuit,establisheddatawirelesscommunicationprotocol,compiledtherelevantprocedures,andhascarriedontherelatedexperimentaldebugging.Thewirelesssensorsystem,highcostperformance,strongadaptability,lowcomplexity,greatlyincreasethesystemreliability,flexibilityandrangeofdetection,lowerthecostofthesystem,hasgoodapplicationprospect.Keywords：ZigBee；Wirelesssensorsystems;Sensormodule;RFtransceivermodule;Communicationprotocol济南大学毕业设计-III-目录摘要................................................................................................错误!未定义书签。ABSTRACT...........................................................................................错误!未定义书签。1课题背景及意义...............................................................................................................11.1课题背景及研究现状.............................................................................................11.2研究目的和意义.....................................................................................................22系统总体设计方案...........................................................................................................32.1ZigBee协议规范研究及分析.................................................................................32.1.1ZigBee网络拓扑结构...................................................................................32.1.2ZigBee数据传输机制...................................................................................32.1.3ZigBee节能技术探讨...................................................................................42.2方案选择.................................................................................................................52.3系统整体设计.........................................................................................................52.4芯片选择.................................................................................................................62.4.1无线射频模块...............................................................................................62.4.2单总线温度传感器DS18B20......................................................................72.4.3气敏传感器MQ-2........................................................................................72.4.4液晶显示模块...............................................................................................72.5系统硬件结构.........................................................................................................73无线传感系统的硬件设计................................................................................................93.1无线传输模块的电路设计.....................................................................................93.2温度采集电路设计...............................................................................................133.3烟雾采集电路设计...............................................................................................143.4声光报警电路设计................................................................................................143.5液晶显示电路设计...............................................................................................153.6远红外遥感电路设计...........................................................................................163.7串口电路设计.......................................................................................................173.8整机电路图............................................................................................................174系统软件设计.................................................................................................................184.1终端测量节点加入无线网络...............................................................................184.2终端节点信号采集...............................................