................................................35Р 4.1 主程序部分..........................................................................................35Р Р Р4.2 数据采集部分......................................................................................35Р 4.2.1 DHT11传感器模块.......................................................................35Р 4.2.2 MQ-2和MS1100传感器模块.....................................................38Р4.3 LCD12864显示部分............................................................................38Р4.4 系统实验..............................................................................................43Р4.5 本章小结..............................................................................................45Р结论....?46Р参考文献?47Р致谢?49Р附录1 开题报告Р附录2 文献综述Р附录3 中期报告Р附录4 外文译文Р附录5 外文原文