發(fā)布時間：2018-03-17 12:45

  本文選題：現(xiàn)代化農(nóng)業(yè)　切入點(diǎn)：變量精密施藥　出處：《農(nóng)業(yè)現(xiàn)代化研究》2017年02期 　論文類型：期刊論文

【摘要】：樹木尺寸、形狀等特征信息的獲取,是現(xiàn)代化農(nóng)業(yè)中重要的環(huán)節(jié),為農(nóng)林管理中的變量精密噴霧提供依據(jù)。為了實現(xiàn)對樹木靶標(biāo)信息的精確測量,搭建了基于UTM-30LX型激光傳感器的室內(nèi)滑臺靶標(biāo)檢測系統(tǒng),實現(xiàn)對規(guī)則物體、仿真樹的掃描檢測,通過編寫的C++程序,實時讀取數(shù)據(jù)信息并存儲于控制計算機(jī)中。利用MATLAB軟件對存儲的數(shù)據(jù)信息進(jìn)行后期的離線分析,重構(gòu)物體三維圖像,通過最大相對誤差、輪廓相似度兩個參數(shù),分析激光傳感器檢測得到靶標(biāo)目標(biāo)尺寸、重構(gòu)目標(biāo)三維圖像的精確度。以長方體柜子、圓柱體泡沫、2棵仿真樹為試驗對象,按照選取的3個檢測距離和4個檢測速度分別對4個試驗對象進(jìn)行檢測與數(shù)據(jù)分析。試驗結(jié)果顯示,多次試驗下,與人工測量尺寸比較而言,激光傳感器測得的長方體柜子長度、寬度和高度尺寸最大相對誤差分別為6.76%、6.86%和3.92%,圓柱體泡沫的高度、直徑尺寸最大相對誤差分別為4.25%和7.33%,仿真樹1高度、寬度尺寸最大相對誤差分別為4.06%和5.91%,仿真樹2高度、寬度尺寸最大相對誤差分別為3.24%和4.00%;仿真樹1、2的激光掃描重構(gòu)圖像與對應(yīng)實物輪廓相似度最小值分別為0.928 8和0.932 6。研究表明,UTM-30LX型激光傳感器在各種試驗條件下對多種試驗靶標(biāo)特征檢測均具有較好的精確性和準(zhǔn)確性,可以擔(dān)負(fù)變量噴霧檢測的任務(wù),具有應(yīng)用到農(nóng)業(yè)生產(chǎn)中的前景。
[Abstract]:The acquisition of characteristic information, such as tree size and shape, is an important link in modern agriculture, which provides the basis for variable precision spray in agroforestry management. Based on UTM-30LX laser sensor, an indoor target detection system for sliding platform is built, which can scan and detect regular objects and simulation trees. The data information is read in real time and stored in the control computer. The MATLAB software is used to analyze the stored data information off-line, and to reconstruct the 3D image of the object. The maximum relative error and the contour similarity are two parameters, the maximum relative error and the contour similarity. The target size is obtained by laser sensor detection, and the accuracy of 3D image reconstruction is obtained. Two simulation trees, cuboid cabinet and cylindrical foam tree, are used as experimental objects. According to the selected three detection distances and four detection velocities, the four test objects were tested and the data were analyzed respectively. The test results show that, after many tests, the size of the four tested objects is compared with the manual measurement. The maximum relative error of cuboid cabinet length, width and height measured by laser sensor is 6.76% and 3.92%, respectively. The maximum relative error of cylindrical foam height and diameter dimension is 4.25% and 7.33, respectively. The maximum relative error of width dimension is 4.06% and 5.91 respectively. The maximum relative error of width dimension is 3.24% and 4.00, respectively, and the minimum similarity between the reconstructed image and the corresponding contours is 0.928 8 and 0.932 6, respectively. The results show that the laser sensor of UTM-30LX is suitable for different experimental conditions. Many kinds of test target feature detection have good accuracy and accuracy. It can take on the task of variable spray detection, and has the prospect of application in agricultural production.
【作者單位】： 江蘇大學(xué)電氣信息工程學(xué)院;
【基金】：國家自然科學(xué)基金項目(51505195) 江蘇省自然科學(xué)基金項目(BK20130501) 江蘇省高校自然科學(xué)基金(13KJB210002)~~
【分類號】：TP391.41;TP212

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