Girasol, a sky imaging and global solar irradiance dataset

We built a system composed of VI and IR solar radiation cameras, a tracking system, anda pyranometer, to collect the data. A weatherproof enclosure contains the two USB cameras,and it is mounted on top of two servomotors. The cameras are connected to a motherboard thatruns a solar tracking algorithm. This motherboard is placed inside of a different weatherproofenclosure together with a router, a servomotor control unit, a data storage system, plus theirrespective power supplies. The enclosure’s degree of protection is IP66. This is an internationalstandard utilized for electronic equipment that provides protection against dust and water. The tracking system and DAQ software is currently operative. The software was programmed in Python 2. The system is placed on the top roof area of the Mechanical Engineer-ing building at UNM central campus (35.0821,−106.6259). The DAQ sessions can be visuallymonitored through a webpage. All devices were interconnected via a LAN network built by DHCP server.

我们搭建了一套由可见光（VI）与红外（IR）太阳辐射相机、跟踪系统及总辐射表（pyranometer）组成的数据采集系统，用于采集数据。两台USB相机置于防水外壳内，并安装于两台伺服电机之上。相机与运行太阳跟踪算法的主板相连。该主板与路由器、伺服电机控制单元、数据存储系统及其各自的电源一同安置于另一台防水外壳内。该外壳的防护等级为IP66，这是一项面向电子设备的国际标准，可提供防尘与防水防护。目前，跟踪系统与数据采集（Data Acquisition, DAQ）软件均已正常运行，该软件基于Python 2编写完成。本系统部署于UNM主校区机械工程大楼的楼顶区域，坐标为(35.0821, -106.6259)。用户可通过网页对数据采集会话进行可视化监控。所有设备均通过DHCP（Dynamic Host Configuration Protocol）服务器搭建的局域网（Local Area Network, LAN）实现互联。

搜集汇总

背景与挑战

背景概述

Girasol是一个天空成像和全球太阳辐照度数据集，包含3年内244天的太阳周期记录，总数据量约110GB。数据集通过可见光和红外相机同步采集天空图像，并结合太阳辐照度测量，用于支持光伏系统的短期发电预测，数据采集间隔为15秒，覆盖太阳高度角大于15°的时段。