cloud catcher
DESCRIPTION
presentation for a cloud catcherTRANSCRIPT
Cloud Catcher
Cloud Catcher Supervisor Malculm McCulloch
By Theodor IstrateSolar
SolarDeclinationEquation of timeSolar Local TimeHour angleElevation angleTime correction factorSuns PositionAzimuth anglehP2v1sxX1Y1 X2Y2 X3Y3 X4Y4 XcYc RRRRa1a2a3a4 4 12pP3
RRPO62vt2vt2vt2vtx1x2xsO12s122shx1x2xsXYZThe Importance of the Project Photovoltaic systems are usually coupled with diesel generators in order to be able to maintain the required energy output
Disadvantage When the sun is obstructed by a cloud, the power generated will drop quickly, however there is not enough time to start the diesel engine
Our Solution We aim to use a cheap camera with a fish-eye lens in order to be able to detect and predict any clouds that will overshadow the system Obtaining information from pictures GPS location Date and time Velocity field
Sun Position
Velocity Field of the SkyUsing cross correlation of two consecutive images we obtained a vector field of the sky
One problem appeared due to close variance in the blue
After trying different approaches to solve it we decided to set the errors vectors to 0
Detecting the region of interest
By taking each individual point and calculating the angle at which it sees the sun and comparing it with the angle of the velocity vector we can determine the region of interest13Future Work Calculating a cloud coefficient based on the ratio between the blue and red intensity levels of the pixels
Obtaining the clouds velocity based on the pixels velocity