人工杨树林大气环境智能监测及数据分析  

Atmosphere environment monitoring and data analysis in poplar plantation

作　　者：李骏慧[1] 顾敏明[1] 孟培雯[1] 王一雄[1] 刘云飞[1] 方升佐[1] 

机构地区：[1]南京林业大学信息科学技术学院,南京210037

出　　处：《电子测量技术》2014年第4期117-120,共4页Electronic Measurement Technology

摘　　要：光照、温度、水分是植物生长的重要要素。为研究杨树人工林不同间伐密度下生长与环境的关系,在江苏宝应湖湿地公园选取100亩人工杨树林进行布点,将采集节点放置在不同的间伐区,通过构建无线传感网络,采集监测区内的环境数据,并汇聚到网关节点,再通过3G模块发送至数据服务器,实时监测树林内的生态环境参数。长期监测过程中发现低电池电压、温度变化等参数影响数据传送,造成丢包,影响日后数据分析,为此应用卡尔曼滤波算法对丢包数据进行预测修正,得到数据的最佳估计值。The data acquisition node was placed in different intermediate cutting area of the 100 mu Artificial Poplar Forest in Baoying Lake Wetland Park,Jiangsu province. The data acquisition nodes collected environmental data in the monitoring area,and converged to the gateway node through the WSNs. Then the gateway node sent the data to the server through the 3G module. In this paper, we also analyze the situation of data packet loss in the process of data transmission to determine the factors influencing data transmission. We used Kalman filtering algorithm to predict the best estimate of the loss data,and proposed an improvement plan according to the packet loss factor.

关 键 词：无线传感网 丢包分析 卡尔曼滤波 预测 

分 类 号：X83[环境科学与工程—环境工程] TN915.05[电子电信—通信与信息系统]