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首页> 外文期刊>HortTechnology >An automated cost-effective system for real-time slope mapping in commercial wild blueberry fields.
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An automated cost-effective system for real-time slope mapping in commercial wild blueberry fields.

机译：一个自动化的具有成本效益的系统，用于在商业野生蓝莓田中实时绘制坡度。

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摘要

The development of site-specific agriculture has increased the need for knowledge regarding within-field variability in factors such as soil/plant characteristics and topography that influence wild blueberry (Vaccinium angustifolium) production. Surface soil properties are the first type of information most frequently used by blueberry producers in developing management plans. Topographic features are not yet routinely used to guide within-field management. The majority of blueberry fields in eastern Canada have gentle to severe topography. An automated slope measurement and mapping system (SMMS) consisting of low-cost accelerometers used as tilt sensors, differential global positioning system (DGPS), and laptop and custom software was developed. The SMMS was mounted on an all-terrain vehicle for real-time slope measurement and mapping. Six commercial wild blueberry fields were surveyed in central Nova Scotia to evaluate the performance of SMMS. The automatically sensed slopes (SS) were also compared with manually measured slopes (MS) at 20 randomly selected points in each field to examine the accuracy of SMMS. The SMMS measured slope reliably in the selected fields with root mean square error ranging from 0.12 to 0.56 degrees and correlations of SS with MS of R2=0.95 to 0.99. The selected fields had substantial variation in slope (ranging from 0.8 to 31.0 degrees). Therefore, the use of low-cost and reliable accelerometers with a DGPS is a better option than expensive real-time kinematic DGPS for developing cost-effective SMMS to quantify and map slopes (real-time) for planning site-specific management practices in commercial fields. The SS maps or real-time SMMS could also be used to adjust vehicle speed at particularly steep slopes.
机译：特定地点农业的发展增加了对田间变异性的知识的需求，这些变异因素会影响诸如野生蓝莓（Vaccinium angustifolium ）生产的土壤/植物特征和地形。地表土壤特性是蓝莓生产者在制定管理计划时最常使用的第一类信息。地形功能尚未常规用于指导场内管理。加拿大东部的大多数蓝莓田地势中等至严重。开发了一种自动斜率测量和绘图系统（SMMS），该系统由用作倾斜传感器的低成本加速度计，差分全球定位系统（DGPS）以及笔记本电脑和定制软件组成。 SMMS安装在全地形车上，用于实时斜率测量和绘图。在新斯科舍省中部对六个商业性野生蓝莓田进行了调查，以评估SMMS的性能。还将自动感应的斜率（SS）与每个字段中随机选择的20个点的手动测量的斜率（MS）进行了比较，以检验SMMS的准确性。 SMMS在选定字段中可靠地测量了斜率，均方根误差在0.12至0.56度之间，SS与MS的相关性为 R 2 = 0.95至0.99。所选场的坡度有很大变化（范围从0.8到31.0度）。因此，与昂贵的实时运动DGPS相比，将低成本，可靠的加速度计与DGPS结合使用是一种更好的选择，用于开发经济高效的SMMS来量化和绘制坡度（实时），以规划商业中特定地点的管理实践领域。 SS地图或实时SMMS还可用于在特别陡峭的斜坡上调节车速。

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