摘要
无线传感器网络(WSN)应用于苹果园中能提高苹果生产的信息化水平,但WSN温湿度传感器部署的数量及位置是WSN节点部署中亟需解决的问题。基于此,在北京市丰台区一个普通苹果园进行了实地试验,采用温湿度仪测量了大量点的温湿度,研究空气温湿度的空间分布特征以决定传感器部署策略。结果表明,对于单个冠层,空气温湿度在每个平面具有相同的走势;距离果园边缘的果树冠层空气温湿度的极差大于果园中心位置的果树,相差约3倍;果树间隙的空气温湿度极差和果园中心处的冠层极差相近。基于此,提出了一种"先平面后整体,外密里疏"的苹果园中空气温湿度传感器的部署方法。
Wireless sensor networks（WSN） application in apple orchards can improve the informationization level of the apple industry, however the deployment number and position of WSN temperature and humidity sensor is a problem to be solved urgently. To solve the problems, the field experiments were performed in a common apple orchard in Fengtai district of Beijing city, and the air temperature and humidity at a large number of positions was measured to research the distribution characteristics of air temperature and humidity in an apple orchard, so as to determine the deployment stradegy of the sensor.The results showed that, air temperature and humidity had the same variation tendency in different horizontal levels for an individual canopy. The range in the canopy at the edge was much more than that at the center, with a differential approximately 3 times. The range in the trees clearance was similar with that in the canopy at the center. According to the results,a ＂plane first then the whole, and dense on the edge and sparse in the center ＂ deployment method was proposed.
出处
《湖北农业科学》
2016年第5期1189-1193,共5页
Hubei Agricultural Sciences
基金
国家高技术研究发展计划(863计划)课题(2013AA102405)
关键词
无线传感器网络(WSN)
空气温湿度
苹果园
节点部署
wireless sensor networks（WSN）
air temperature and humidity
apple orchard
sensor deployment
