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作 者:卜晓波 刘德磊 王浩儒 牛雅曼 BU Xiao-bo;LIU De-lei;WANG Hao-ru;NIU Ya-man(College of Software,Shanxi Agricultural University ,Taigu Shanxi 030801,China)
机构地区:[1]山西农业大学软件学院
出 处:《计算机仿真》2019年第7期323-327,共5页Computer Simulation
基 金:教育部产学合作协同育人项目(201601023007);山西农业大学博士科研启动基金(2014YJ20)
摘 要:采用当前方法采集农业大棚的环境信息时,采集信息所用的时间较长,采集得到的信息完整性较低,存在采集效率低和丢包率高的问题。提出云计算下农业大棚环境信息自动采集方法,通过控制层、支撑层、操作层、传输层和服务层建立农业大棚环境信息采集平台,根据平台中存在的骨干节点建立环结构,在普通节点与骨干节点之间依赖关系的基础上搭建骨干路径,将存在农业大棚环境信息的数据包通过骨干路径传送到sink节点中,利用独立成分分析法初步提取数据包中存在的农业大棚环境信息,再采用模糊线性鉴别方法进行一步提取农业大棚环境信息,在云计算的基础下完成农业大棚环境信息的自动采集。仿真结果表明,所提方法的采集效率高、丢包率低。At present, collection method of environment information of agricultural greenhouse is time - consuming. Meanwhile, integrity of the collected information is low. Collection efficiency is low and packet loss rate is high. Therefore, an automatic collection method of the environment information under cloud computing is proposed. Collection platform of the environment information was built via control layer, support layer, operation layer, transport layer, and service layer. According to backbone node existing in the platform, ring structure was built based on dependence between normal node and backbone node. Data package having environmental message of agricultural greenhouse was transmitted into sink node via backbone path. Independent component analysis was used to extract the environmental message existing in the data package preliminarily. Then, the environmental message was further extracted via fuzzy linear identification method. Based on cloud computing, the automatic collection of environment information was completed. Simulation results show that the method has high collection efficiency and low packet loss rate.
分 类 号:TP311[自动化与计算机技术—计算机软件与理论]
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