农业工程学报
農業工程學報
농업공정학보
Transactions of the Chinese Society of Agricultural Engineering
2015年
20期
262-267
,共6页
邵晴%徐涛%吉野辰萌%宋男%朱航
邵晴%徐濤%吉野辰萌%宋男%硃航
소청%서도%길야신맹%송남%주항
存储%监测%三维%三维激光扫描技术%粮食储量%点云数据%粮食体积计算
存儲%鑑測%三維%三維激光掃描技術%糧食儲量%點雲數據%糧食體積計算
존저%감측%삼유%삼유격광소묘기술%양식저량%점운수거%양식체적계산
storage%monitoring%3-D%3-D laser scanning technology%grain storage%point cloud data%grain volume calculation
为实现仓储粮储量在线实时监测,该研究开发了一种基于三维激光扫描技术的粮食储量在线监测系统.采用自主研制的倒置式粮仓专用型三维激光扫描仪对储粮进行扫描,通过上位机通讯、采集点云数据并控制扫描仪的工作过程,应用粮食体积计算软件实时计算储粮体积和数量,从而解决了仓储粮储量快速高精度监测的问题.使用该系统在中储粮某直属库进行系统验证试验,结果表明,测量得到的粮食体积满足最大误差不超过 1%的技术指标,且经过多次试验检验,系统具有较好的稳定性、测量精度高、操作简便等优点,能够满足仓储粮储量监测的要求.该研究为实现仓储粮储量的快速实时在线监测提供了有效的方法.
為實現倉儲糧儲量在線實時鑑測,該研究開髮瞭一種基于三維激光掃描技術的糧食儲量在線鑑測繫統.採用自主研製的倒置式糧倉專用型三維激光掃描儀對儲糧進行掃描,通過上位機通訊、採集點雲數據併控製掃描儀的工作過程,應用糧食體積計算軟件實時計算儲糧體積和數量,從而解決瞭倉儲糧儲量快速高精度鑑測的問題.使用該繫統在中儲糧某直屬庫進行繫統驗證試驗,結果錶明,測量得到的糧食體積滿足最大誤差不超過 1%的技術指標,且經過多次試驗檢驗,繫統具有較好的穩定性、測量精度高、操作簡便等優點,能夠滿足倉儲糧儲量鑑測的要求.該研究為實現倉儲糧儲量的快速實時在線鑑測提供瞭有效的方法.
위실현창저량저량재선실시감측,해연구개발료일충기우삼유격광소묘기술적양식저량재선감측계통.채용자주연제적도치식량창전용형삼유격광소묘의대저량진행소묘,통과상위궤통신、채집점운수거병공제소묘의적공작과정,응용양식체적계산연건실시계산저량체적화수량,종이해결료창저량저량쾌속고정도감측적문제.사용해계통재중저량모직속고진행계통험증시험,결과표명,측량득도적양식체적만족최대오차불초과 1%적기술지표,차경과다차시험검험,계통구유교호적은정성、측량정도고、조작간편등우점,능구만족창저량저량감측적요구.해연구위실현창저량저량적쾌속실시재선감측제공료유효적방법.
The rapid and accurate monitoring of the grain storage is an important problem to be solved by the national food regulatory authorities. This study developed an on-line monitoring system of grain storage based on the 3-D laser scanning technology to realize the on-line real-time monitoring of grain storage. The system consisted of a hardware system based on a 3-D laser scanner and a point cloud data processing software system. The hardware system mainly completed the function of collecting the 3-D point cloud data of the grain surface, and it consisted of the 3-D laser scanner (GSLS003, Hangzhou, China), the infrared camera of fixed waterproof lens (CBP-350N5, Upland, USA) and the workstation DELL M6800. The processing software system mainly realized the functions of point cloud data post-processing, data transmission and preservation. The software system comprised of the scanner control software, the grain volume calculation software and the reserved interfaces. In order to solve the problem of the rapid and high precision monitoring of the grain storage, the verification test of this system was carried out in a state-owed granary in Anhui province in February, 2014. In the test, the center of the 3-D laser scanner was fixed on the granary roof. All the instruments of the system were plugged into a power supply. After that, the upper computer could access to the local area network in order to control the whole system. The point cloud data of the grain surface, the grain volume and weight were obtained. The self-developed 3-D laser scanner of upside-down type for grain was used to scan the grain surface to get the point cloud data. Firstly, the scanner was connected by communicating with the upper computer. After that, the scanning parameters were initialized by zero adjustment function and the motor speed was set to start the scanning by the speed control function. Finally the 3-D point cloud data collected by the scanner were transmitted and stored in the terminal workstation. The upper computer was applied to communicate with scanner, collect point cloud data and control the working process of the scanner in the process of scanning. Then the grain volume calculation software was utilized to calculate grain storage volume and weight in time. First of all, the 3-D point cloud data of the grain surface was simplified, denoised and fused by the preprocessing function of the grain volume calculation software. Then the grain volume was calculated by the software, at the same time the grain weight was gained by setting the grain density in the parameter control function. In the end, the calculation results could be displayed on the screen of the workstation. The system worked in a stable condition in the test, finally eight groups of point cloud data were gained by scanning at the best rotational speed. The actual grain volume value was 8 300.8 m3, which was provided by the state-owed granary. And the volumetric measurements of eight test groups were calculated in time by the grain volume calculation software. Through calculation, it was shown that the measured grain volume, which was monitored by the system based on 3-D laser scanning technology developed in this study, could meet the technical index of the maximum error less than 1%. And after a lot of tests, it was proven that this upgraded system was characterized by good stability, high measuring accuracy, and easy operation, therefore, the system promised as a higher precision and efficiency technique for monitoring grain volume in granaries. The effective implementation of this system will serve as a new method to access grain volume information based on 3-D laser scanning technology and data analysis method.