The EKO All Sky Imager (model: SRF-02) is a new generation of all sky imagers with unique technological advantages that can automatically record clear cloud distribution data in the entire sky without sun obstruction and fully exposed to sunlight. It can be used to monitor changes in weather and cloud conditions, forecast solar energy production capacity, and evaluate photovoltaic power generation performance. Its embedded solar energy monitoring system can greatly enhance the ability to study and predict regional solar energy resources.

chart1. All Sky Imager (left image) and captured cloud map (right image)

This imaging device hasWith a wide viewing angle of 180 ° and high-resolution sensors, it can automatically record cloud information throughout the sky and convert it into quantitative cloud information through advanced cloud detection algorithms in the software. The imager can access the Internet through the standard network card, and transmit data to the server or monitoring computer through the network.

The imaging instrument control software integrates a horizon determination tool, providing users with greater flexibility and functional needs. For example, the software can be used to set zenith angle ranges, ground cover areas, or areas of interest to avoid the influence of inherent obstructions around the station on observation results. The imaging device also has good waterproof function, and according to actual observation conditions, it can be dried using an air pump or a built-in drying box. The built-in drying box drying method is more suitable for application in remote observation sites with insufficient power supply conditions.

chart2. Cloud cover recognition setting window

chart3. Horizon and ground cover shielding settings (green lines and blue dots in the figure)

chart4. Cloud cover calculation example. The red color represents the calculation results of the Blue Red and Blue Green Algorithm (BRBG); The black curve represents the cloud detection and opacity analysis algorithm; The blue curve represents thick cloud cover; The green curve represents the amount of thin cloud cover.

[Product Advantages]:

lNo sun blocking device, effectively recording cloud information throughout the sky, can be used forDirect radiation monitoring and forecasting；

lBuilt in computer host, no need to install additional workstations;

lCan connect to the network, remotely operate and monitor through terminals;

lLow power consumption, small size, light weight, easy to install in the field;

lIt has waterproof function and can be used for all-weather observation.

Main parameters of the product:

Advantages compared to similar products

User case studyFrom September 2014 to May 2015

【 Other 】EKO Excellent Product Introduction

(1) Total radiation meter, direct radiation meter, spectral radiometer, ultraviolet radiation meter, earth long wave radiation meter, sky scanner (irradiance and brightness), with excellent quality and superior price.

(2) The solar tracking system has high observation accuracy and superior price in the industry.

(3) Portable radiation meter, with a smaller volume and higher observation accuracy in the industry, as well as cost-effectiveness;

(4) The All Sky Imager is a new generation of all sky imagers. The unique design of the product is that it does not require a sun shading device, and can automatically record the cloud distribution of the entire sky clearly under direct sunlight, preserving quantitative data of the cloud distribution of the entire sky as much as possible. Having excellent technological and price advantages.

(5) The sunshine hours sensor is the only device in the world that accurately meets the observation standards of the World Meteorological Organization (WMO).

(6) The photovoltaic power generation monitoring and evaluation system has a high quality advantage in the industry.