本文選題：牧場 + 物聯(lián)網(wǎng)　； 參考：《農(nóng)業(yè)機(jī)械學(xué)報》2017年02期

【摘要】：智能化畜牧業(yè)管理需要對牧場中牲畜的行為進(jìn)行檢測以及對牲畜的運動路徑、位置等信息進(jìn)行采集,利用牧場物聯(lián)網(wǎng)系統(tǒng)可以實現(xiàn)對上述信息的獲取。基于無線傳感器網(wǎng)絡(luò)的系統(tǒng)架構(gòu)能夠滿足各個采樣節(jié)點間的通信需求,但是由于牧場所處的地理位置一般比較偏遠(yuǎn),網(wǎng)絡(luò)環(huán)境復(fù)雜,與互聯(lián)網(wǎng)連接時經(jīng)常出現(xiàn)連接中斷、丟包等問題。采用傳統(tǒng)的網(wǎng)絡(luò)連接方式可能導(dǎo)致數(shù)據(jù)大量丟失,為了減少在與互聯(lián)網(wǎng)連接中斷時采樣數(shù)據(jù)的丟失,提出了一種基于機(jī)會網(wǎng)絡(luò)的牧場物聯(lián)網(wǎng)數(shù)據(jù)傳輸方案,分析了在牧場環(huán)境中傳感器之間的通信狀態(tài),總結(jié)出傳感器之間通信的3種方式,分別予以建模分析。在傳感器有限存儲容量的前提下,利用機(jī)會網(wǎng)絡(luò)的原理,提出接入點密度的計算方法,并總結(jié)了牲畜運動速度、傳感器節(jié)點存儲容量與數(shù)據(jù)傳輸丟包率之間的內(nèi)在聯(lián)系,從而保證了系統(tǒng)數(shù)據(jù)丟失在設(shè)計允許的范圍內(nèi)。通過評估和驗證所提方法理論結(jié)果的實驗,證明了方法的正確性。
[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.
【作者單位】： 山西農(nóng)業(yè)大學(xué)信息科學(xué)與工程學(xué)院;中國農(nóng)業(yè)大學(xué)信息與電氣工程學(xué)院;中國農(nóng)業(yè)大學(xué)農(nóng)業(yè)部農(nóng)業(yè)信息獲取技術(shù)重點實驗室;北京農(nóng)學(xué)院計算機(jī)與信息工程學(xué)院;
【分類號】：TP39;;S24

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