本文選題：設(shè)施農(nóng)業(yè) + 無線傳感器網(wǎng)絡(luò)�。� 參考：《南京農(nóng)業(yè)大學(xué)》2014年碩士論文

【摘要】：設(shè)施農(nóng)業(yè)是現(xiàn)代農(nóng)業(yè)的主要生產(chǎn)方式之一,目的是通過人工改善自然環(huán)境,實(shí)現(xiàn)高效生產(chǎn)。設(shè)施農(nóng)業(yè)環(huán)境監(jiān)控是設(shè)施農(nóng)業(yè)現(xiàn)代化的重要基礎(chǔ),內(nèi)容是運(yùn)用現(xiàn)代信息技術(shù)和自動化技術(shù)對設(shè)施環(huán)境進(jìn)行實(shí)時監(jiān)測和智能化調(diào)控,達(dá)到作物生長需求。傳統(tǒng)的手動、機(jī)械、分布式電控等設(shè)施環(huán)境監(jiān)控手段,存在布線繁瑣、成本高、精度低等缺陷。無線傳感器網(wǎng)絡(luò)自20世紀(jì)70年代出現(xiàn)后,以其自組網(wǎng)、低功耗、低成本、靈活性強(qiáng)等優(yōu)勢迅速在軍事、工業(yè)及農(nóng)業(yè)等領(lǐng)域得到廣泛應(yīng)用。本課題以無線傳感器網(wǎng)絡(luò)技術(shù)研究為基礎(chǔ),設(shè)計了一套經(jīng)濟(jì)、實(shí)用的設(shè)施農(nóng)業(yè)環(huán)境監(jiān)控系統(tǒng)。針對設(shè)施環(huán)境監(jiān)控的特殊要求,本課題采用無線通信、嵌入式系統(tǒng)以及自動控制等技術(shù)對設(shè)施環(huán)境監(jiān)控的軟硬件系統(tǒng)進(jìn)行設(shè)計,建立了針對溫室空氣溫濕度、光照度、CO2濃度、土壤濕度等參數(shù)采集及環(huán)境調(diào)節(jié)機(jī)構(gòu)無線控制的低功耗無線傳感器網(wǎng)絡(luò),通過開放的人機(jī)交互界面完成環(huán)境參數(shù)的查詢、存儲和簡單分析,同時可通過策略管理接口自主設(shè)置環(huán)境調(diào)控的策略依據(jù),智能干預(yù)溫室環(huán)境調(diào)控。本課題設(shè)計了無線傳感器網(wǎng)絡(luò)低功耗測定試驗(yàn),對節(jié)點(diǎn)電源管理電路的性能及壽命進(jìn)行了測定與評估,試驗(yàn)表明：使用雙電源管理電路、3節(jié)南孚AA電池,可維持節(jié)點(diǎn)11019.8h(約459.2天)的使用壽命。運(yùn)用高斯濾波和線性回歸等方法建立了設(shè)施番茄種植環(huán)境下433MHz射頻信號傳輸?shù)乃p模型,試驗(yàn)表明：衰減模型的預(yù)測值與實(shí)測值之間的相對誤差控制在7%以內(nèi),具有較高的預(yù)測精度。本課題研究成果在南京市蔬菜花卉科學(xué)研究所實(shí)地運(yùn)行,結(jié)果表明：方案設(shè)計規(guī)范合理,功能穩(wěn)定,滿足設(shè)施農(nóng)業(yè)環(huán)境監(jiān)控需求。
[Abstract]:Facility agriculture is one of the main modes of production in modern agriculture, which aims to improve the natural environment and realize efficient production. The environmental monitoring of facility agriculture is an important foundation for the modernization of facility agriculture. The content is to use modern information technology and automation technology to monitor and control the facility environment in real time and intelligently, so as to meet the demand of crop growth. The traditional manual, mechanical, distributed electronic control and other facilities environment monitoring methods, such as cumbersome wiring, high cost, low precision and other defects. Since the emergence of wireless sensor networks in the 1970s, wireless sensor networks have been widely used in military, industrial and agricultural fields because of their advantages of self-organizing, low power consumption, low cost and strong flexibility. Based on the research of wireless sensor network (WSN), a set of economical and practical environmental monitoring system for facility agriculture is designed in this paper. In order to meet the special requirements of facility environment monitoring, the software and hardware system of facility environment monitoring is designed by wireless communication, embedded system and automatic control, and the temperature and humidity of greenhouse air, light intensity and CO _ 2 concentration are established. The low power wireless sensor network, which collects soil moisture and other parameters and controls the environment by wireless, completes the query, storage and simple analysis of the environmental parameters through the open man-machine interface. At the same time, the strategy basis of environment regulation can be set up independently through the strategy management interface, and the intelligent intervention of greenhouse environment control. In this paper, the low power measurement test of wireless sensor network is designed, and the performance and lifetime of node power management circuit are measured and evaluated. The service life of the node can be maintained at 11019.8h. (about 459.2 days). The attenuation model of 433MHz RF signal transmission was established by using Gao Si filter and linear regression method. The experimental results show that the relative error between the predicted and measured values of attenuation model is less than 7%. It has high prediction accuracy. The research results of this paper are running in Nanjing vegetable and Flower Science Research Institute. The results show that the scheme design is reasonable, the function is stable, and it can meet the needs of environmental monitoring and control of facility agriculture.
【學(xué)位授予單位】：南京農(nóng)業(yè)大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TN929.5;TP212.9;S316

【參考文獻(xiàn)】

相關(guān)期刊論文 前1條

1 高建平,趙龍慶;溫室計算機(jī)控制與管理技術(shù)的發(fā)展概況及在我國的應(yīng)用前景[J];計算機(jī)與農(nóng)業(yè).綜合版;2003年02期

，

本文編號：1807902