...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Acta Horticulturae >Comparative assessment of different sensing technologies for mapping the vineyard.
【24h】

Comparative assessment of different sensing technologies for mapping the vineyard.

机译：比较评估用于葡萄园映射的不同传感技术。

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The aim of this study was the evaluation of proximal and remote surveying technologies for monitoring and highlighting the variability within vineyards. The devices used measure the electromagnetic energy (emitted, reflected or transmitted) of leaf surface subjected to different wavelengths (spectral signature). The proximal data were detected using the ACS 210 sensor-provided LED, Light Emitting Diode (an internal light active source), which emits an active pulsed light in the red and near-IR bands, obtaining in real time the NDVI (Normalized Difference Vegetation Index) from reflectance values. A mobile laboratory was assembled and transported by 4x4 quad-vehicles, equipped with a GPS system, a sensor for measuring the reflectance of the canopy in real-time, an ultrasonic sensor for the canopy thickness map, and an infrared sensor to measure temperature. Furthermore, we developed a special software and hardware to implement and acquire data in continuum. The remote data were taken using DFR (Duncan - Flir - Riegl) sensors that acquire data in visible, near-IR and thermal bands. The system consisted of a GPS unit, GPS/INS unit, laser altimeter, thermal infrared camera, and a multispectral camera. These apparatus are combined in a single system of acquisition, flexible and configurable by the user. System management software was developed, which allows the acquisition by each sensor and the storage of position and altitude of the aircraft associated with the captured images, besides all the other accessory parameters. Synchronization between GPS and cameras is handled by TTL (Transistor-Transistor Logic) trigger signals. The NDVI generated from spectral bands provides information about vine biomass and plant vigor, however, is not a unique item for vineyard evaluation. This work was conducted simultaneously in three experimental vineyards selected in the Chianti Classico DOCG area, on which multispectral data were detected by two methods and results were compared; cultivar (Sangiovese), soil and canopy management is the same in all vineyards. The data were acquired twice by both monitoring systems during the summer of 2011 for determining NDVI values.
机译：这项研究的目的是评估近端和远程测量技术，以监测和强调葡萄园内的变化。所使用的设备测量经受不同波长（光谱特征）的叶片表面的电磁能（发射，反射或透射）。使用ACS 210传感器提供的LED发光二极管（内部发光源）检测近端数据，该发光二极管发出红色和近红外波段的有源脉冲光，实时获得NDVI（归一化植被）索引）。移动实验室由4x4四轮汽车组装和运输，该汽车配备GPS系统，用于实时测量顶篷反射率的传感器，用于顶篷厚度图的超声波传感器和用于测量温度的红外传感器。此外，我们开发了一种特殊的软件和硬件来连续实现和获取数据。使用DFR（Duncan-Flir-Riegl）传感器获取远程数据，该传感器在可见光，近红外和热波段中采集数据。该系统由GPS单元，GPS / INS单元，激光高度仪，红外热像仪和多光谱相机组成。这些设备被组合在单个采集系统中，用户可以灵活配置。开发了系统管理软件，除所有其他附件参数外，该软件还允许每个传感器进行采集并存储与捕获的图像相关的飞机的位置和高度。 GPS和摄像机之间的同步由TTL（晶体管-晶体管逻辑）触发信号处理。从光谱带产生的NDVI提供有关葡萄生物量和植物活力的信息，但是，这并不是葡萄园评估的唯一项目。这项工作是在Chianti Classico DOCG地区选择的三个实验葡萄园中同时进行的，通过两种方法对多光谱数据进行了检测，并对结果进行了比较。所有葡萄园的栽培品种（Sangiovese），土壤和冠层管理都是相同的。两个监测系统在2011年夏季两次采集数据，以确定NDVI值。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号