基于机会网络的牧场物联网数据传输方法

发布时间：2018-04-15 10:06

本文选题：牧场 + 物联网　；参考：《农业机械学报》2017年02期

【摘要】：智能化畜牧业管理需要对牧场中牲畜的行为进行检测以及对牲畜的运动路径、位置等信息进行采集,利用牧场物联网系统可以实现对上述信息的获取。基于无线传感器网络的系统架构能够满足各个采样节点间的通信需求,但是由于牧场所处的地理位置一般比较偏远,网络环境复杂,与互联网连接时经常出现连接中断、丢包等问题。采用传统的网络连接方式可能导致数据大量丢失,为了减少在与互联网连接中断时采样数据的丢失,提出了一种基于机会网络的牧场物联网数据传输方案,分析了在牧场环境中传感器之间的通信状态,总结出传感器之间通信的3种方式,分别予以建模分析。在传感器有限存储容量的前提下,利用机会网络的原理,提出接入点密度的计算方法,并总结了牲畜运动速度、传感器节点存储容量与数据传输丢包率之间的内在联系,从而保证了系统数据丢失在设计允许的范围内。通过评估和验证所提方法理论结果的实验,证明了方法的正确性。
[Abstract]:Intelligent animal husbandry management needs to detect the behavior of livestock in pastures and collect the information of livestock movement path and position. The information can be obtained by using the Internet of things system.The system architecture based on wireless sensor network can meet the communication needs of each sampling node. However, because of the remote location and complex network environment of the pasture, the connection to the Internet is often interrupted.Lose a bag, etc.In order to reduce the loss of sampling data during the interruption of Internet connection, a new data transmission scheme based on opportunistic network is proposed in this paper.The state of communication between sensors in pasture environment is analyzed, and three ways of communication among sensors are summarized and analyzed respectively.Under the premise of the limited storage capacity of the sensor, using the principle of the opportunity network, this paper puts forward a method to calculate the density of the access point, and summarizes the internal relations among the speed of livestock movement, the storage capacity of the sensor node and the packet loss rate of the data transmission.Thus, the system data loss is guaranteed to be within the range permitted by the design.The correctness of the proposed method is proved by evaluating and verifying the theoretical results of the proposed method.
【作者单位】：山西农业大学信息科学与工程学院;中国农业大学信息与电气工程学院;中国农业大学农业部农业信息获取技术重点实验室;北京农学院计算机与信息工程学院;
【分类号】：TP39;;S24

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