本文關(guān)鍵詞： 精準(zhǔn)灌溉 ZigBee 無線信號(hào) 數(shù)據(jù)融合 節(jié)點(diǎn)定位　出處：《北方民族大學(xué)》2017年碩士論文　論文類型：學(xué)位論文

【摘要】：農(nóng)業(yè)經(jīng)濟(jì)是我國(guó)經(jīng)濟(jì)發(fā)展的一個(gè)重要組成部分,在中國(guó)歷史上具有舉足輕重的作用。中國(guó)經(jīng)濟(jì)在古代社會(huì)都是以農(nóng)耕為主,農(nóng)業(yè)的發(fā)展直接決定了這一時(shí)期經(jīng)濟(jì)的發(fā)展。對(duì)于現(xiàn)代來說,農(nóng)業(yè)經(jīng)濟(jì)發(fā)展更是不可或缺的一部分�，F(xiàn)代農(nóng)業(yè)與原始農(nóng)業(yè)不同,現(xiàn)代農(nóng)業(yè)主要利用科技手段,將農(nóng)業(yè)與科技相結(jié)合,目的就是為了提高農(nóng)作物的產(chǎn)量和品質(zhì),同時(shí)還要實(shí)現(xiàn)節(jié)約資源的目的。這些科技手段主要包括信息技術(shù)和農(nóng)業(yè)科技,如何將二者有機(jī)的結(jié)合起來,研究科技和農(nóng)業(yè)相結(jié)合的“精準(zhǔn)農(nóng)業(yè)”成了熱門研究話題。本課題研究針對(duì)農(nóng)田實(shí)際地理環(huán)境和農(nóng)業(yè)應(yīng)用需求,進(jìn)行深入討論研究。精準(zhǔn)灌溉首先要解決的問題是如何實(shí)現(xiàn)達(dá)到精準(zhǔn)性,精準(zhǔn)性需要克服在農(nóng)作物種類、農(nóng)田地勢(shì)、氣象信息、農(nóng)田應(yīng)用面積、傳感器布置以及農(nóng)作物生長(zhǎng)周期等方面的問題。本文針對(duì)以上的問題,進(jìn)行了以下方面的研究:(1)在農(nóng)業(yè)應(yīng)用環(huán)境下,無線信號(hào)在2.4GHz無線信道中的傳播特性。針對(duì)于不同的地勢(shì)條件,分別進(jìn)行了無線信號(hào)傳播試驗(yàn),分析了不同地勢(shì)對(duì)無線信號(hào)的RSSI值和丟包率的影響。(2)無線傳感器網(wǎng)絡(luò)典型的組織結(jié)構(gòu),分析其在農(nóng)業(yè)精準(zhǔn)灌溉中的適用性,結(jié)合農(nóng)業(yè)精準(zhǔn)灌溉要求提出適用于農(nóng)業(yè)精準(zhǔn)灌溉的無線傳感器網(wǎng)絡(luò)組織結(jié)構(gòu)。(3)無線傳感器網(wǎng)絡(luò)數(shù)據(jù)融合能夠降低網(wǎng)絡(luò)占用率,提高數(shù)據(jù)的精準(zhǔn)性。數(shù)據(jù)的精準(zhǔn)性是實(shí)現(xiàn)農(nóng)業(yè)精準(zhǔn)灌溉的基礎(chǔ),通過分析不同的算法,結(jié)合精準(zhǔn)灌溉要求提出適應(yīng)于農(nóng)業(yè)精準(zhǔn)灌溉的分級(jí)數(shù)據(jù)融合方法。(4)無線傳感器網(wǎng)絡(luò)的節(jié)點(diǎn)定位直接影響到農(nóng)業(yè)灌溉的精準(zhǔn)性,本文在研究典型節(jié)點(diǎn)定位算法的基礎(chǔ)上,提出了針對(duì)農(nóng)業(yè)精準(zhǔn)灌溉的改進(jìn)型DV-Hop節(jié)點(diǎn)定位算法。經(jīng)過對(duì)以上技術(shù)研究討論和試驗(yàn)驗(yàn)證分析,無線傳感器網(wǎng)絡(luò)技術(shù)在農(nóng)業(yè)方面的應(yīng)用更加具有針對(duì)性,對(duì)于農(nóng)業(yè)灌溉精準(zhǔn)性的提高和農(nóng)業(yè)現(xiàn)代化具有一定的推動(dòng)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.
【學(xué)位授予單位】：北方民族大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TN929.5;TP212.9

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