GIS设备内部空间极为有限，工作场强高，绝缘裕度相对较小，内部缺陷极易引发绝缘故障。局部放电往往是绝缘性故障的先兆和表现形式。我公司生产的HN-PD800系列GIS局放在线监测装置，采用特高频（UHF）在线监测技术，实时监测GIS内部由于局部放电所产生的特高频电磁波信号，通过分析信号特征评估设备运行状态，能有效预防事故的发生，避免GIS的突发性故障。 系统由内置式或外置式特高频传感器组成的信号采集 ...

If you have a Spatial Snippet to share with our readers, please send us an email. We’ll start off this week with the news ...

Stonebraker essentially abandoned Postgres in the mid-1990s. But instead of fading into obscurity, the codebase was salvaged ...

Spatial data, often represented as either geometric or geographical values, can be visualized on a map or graph. A geometric object is typically composed of a sequence of points that define its shape.

做测绘、规划、市政设计的你，是不是每天都在被这些问题折磨？CAD 里画好图，切到 GIS 软件导数据，反复切换动辄半小时；加载大型影像文件卡到死机，属性表管理杂乱无章；想把 GIS 属性标到图纸上，手动输入熬到深夜；多格式数据互转、数据库对接，步步 ...

不管是专业测绘GIS人员还是弱GIS一张图应该开发人员，都需要将分散在各种格式文件中的空间数据，入库到专业大型的关系型数据库（如：SQL Server、MySQL或PostgreSQL），便于对空间数据进行统一的管理，和大型一张图系统的应用开发。下面介绍如何使用“GIS数据 ...

Abstract: Spatial SQL (structured query language) is a powerful tool for systematically solving geographic problems, however, it has not been widely applied to the problem of geographic question ...

Why is the language developers and DBAs use to organize data such a mess? Here are 13 reasons we wish we could quit SQL, even though we probably won't. For all its popularity and success, SQL is a ...

Cloud-native spatial analytics and artificial intelligence startup Wherobots Inc. announced today that it has raised $21.5 million in new funding to accelerate the delivery of modern solutions that ...