面向农业精准灌溉的无线传感器网络技术研究

发布时间：2018-02-28 20:23

本文关键词： 精准灌溉 ZigBee 无线信号数据融合节点定位　出处：《北方民族大学》2017年硕士论文　论文类型：学位论文

【摘要】：农业经济是我国经济发展的一个重要组成部分,在中国历史上具有举足轻重的作用。中国经济在古代社会都是以农耕为主,农业的发展直接决定了这一时期经济的发展。对于现代来说,农业经济发展更是不可或缺的一部分。现代农业与原始农业不同,现代农业主要利用科技手段,将农业与科技相结合,目的就是为了提高农作物的产量和品质,同时还要实现节约资源的目的。这些科技手段主要包括信息技术和农业科技,如何将二者有机的结合起来,研究科技和农业相结合的“精准农业”成了热门研究话题。本课题研究针对农田实际地理环境和农业应用需求,进行深入讨论研究。精准灌溉首先要解决的问题是如何实现达到精准性,精准性需要克服在农作物种类、农田地势、气象信息、农田应用面积、传感器布置以及农作物生长周期等方面的问题。本文针对以上的问题,进行了以下方面的研究:(1)在农业应用环境下,无线信号在2.4GHz无线信道中的传播特性。针对于不同的地势条件,分别进行了无线信号传播试验,分析了不同地势对无线信号的RSSI值和丢包率的影响。(2)无线传感器网络典型的组织结构,分析其在农业精准灌溉中的适用性,结合农业精准灌溉要求提出适用于农业精准灌溉的无线传感器网络组织结构。(3)无线传感器网络数据融合能够降低网络占用率,提高数据的精准性。数据的精准性是实现农业精准灌溉的基础,通过分析不同的算法,结合精准灌溉要求提出适应于农业精准灌溉的分级数据融合方法。(4)无线传感器网络的节点定位直接影响到农业灌溉的精准性,本文在研究典型节点定位算法的基础上,提出了针对农业精准灌溉的改进型DV-Hop节点定位算法。经过对以上技术研究讨论和试验验证分析,无线传感器网络技术在农业方面的应用更加具有针对性,对于农业灌溉精准性的提高和农业现代化具有一定的推动作用。
[Abstract]:Agricultural economy is an important part of China's economic development and plays an important role in Chinese history. The development of agriculture directly determines the economic development of this period. For modern times, agricultural economic development is an indispensable part. Modern agriculture is different from primitive agriculture, and modern agriculture mainly uses scientific and technological means. The purpose of combining agriculture with science and technology is to improve the yield and quality of crops and to achieve the goal of saving resources. These scientific and technological means mainly include information technology and agricultural science and technology, how to combine the two together organically. The research on precision agriculture, which combines science and technology with agriculture, has become a hot research topic. The first problem to be solved for precision irrigation is how to achieve precision. Precision needs to be overcome in crop types, farmland topography, meteorological information, farmland application area, In view of the above problems, this paper has carried out the following research on the following aspects: 1) in the agricultural application environment, The propagation characteristics of wireless signal in 2.4GHz wireless channel. The influence of different terrain on the RSSI value and packet loss rate of wireless signal is analyzed. The typical organizational structure of WSN is analyzed, and its applicability in agricultural precision irrigation is analyzed. According to the requirement of precision irrigation in agriculture, the data fusion of wireless sensor network (WSN), which is suitable for agricultural precision irrigation, can reduce the occupancy rate of WSN. Improve the accuracy of the data. The accuracy of the data is the basis of precision irrigation in agriculture, by analyzing different algorithms, According to the requirements of precision irrigation, a hierarchical data fusion method for agricultural precision irrigation is proposed. The node location of wireless sensor networks directly affects the precision of agricultural irrigation. This paper studies the typical node location algorithm. An improved DV-Hop node location algorithm for agricultural precision irrigation is proposed. Through the discussion of the above technology and experimental verification and analysis, the application of wireless sensor network technology in agriculture is more targeted. To improve the precision of agricultural irrigation and agricultural modernization has a certain role.
【学位授予单位】：北方民族大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TN929.5;TP212.9

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