Cloudiness monitoring for database of local weather

摘要

The wide-angle image device has 360-degree horizontal and 180-degree vertical viewing angles and allows to observe the all-sky in real time. The all-sky image, transformed to a television signal by means of CCD camera, enters onto input of PC's capture card and is digitized. Record of video signal is carried out with frequency at 1 frame per sec. The size of captured video file varies and it depends on duration of light time of day and the window size of the video. In case of addition to the given data of the information about temperature, humidity, and pressure of air, the full data about weather in the specific place of the specific district for any time moment of any day will be received and kept. This database can be used for cloud cover analysis, atmospheric research, pollution monitoring, plume research, UV prediction, and in general meteorology.