Invention Publication
EP3132291A1 SHORT TERM CLOUD COVERAGE PREDICTION USING GROUND-BASED ALL SKY IMAGING
有权
KURZFRISTIGE VORHERSAGE DER WOLKENBEDECKUNG MIT BODENBASIERTER GESAMTHIMMELABBILDUNG
- Patent Title: SHORT TERM CLOUD COVERAGE PREDICTION USING GROUND-BASED ALL SKY IMAGING
- Patent Title (中): KURZFRISTIGE VORHERSAGE DER WOLKENBEDECKUNG MIT BODENBASIERTER GESAMTHIMMELABBILDUNG
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Application No.: EP15717774.2Application Date: 2015-04-09
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Publication No.: EP3132291A1Publication Date: 2017-02-22
- Inventor: SUN, Shanhui , ERNST, Jan , SAPKOTA, Archana , RITZHAUPT-KLEISSL, Eberhard , WILES, Jeremy Ralph , CHEN, Terrence
- Applicant: Siemens Aktiengesellschaft
- Applicant Address: Wittelsbacherplatz 2 80333 München DE
- Assignee: Siemens Aktiengesellschaft
- Current Assignee: Siemens Aktiengesellschaft
- Current Assignee Address: Wittelsbacherplatz 2 80333 München DE
- Agency: Isarpatent
- Priority: US201414255154 20140417
- International Announcement: WO2015160604 20151022
- Main IPC: G01W1/10
- IPC: G01W1/10
Abstract:
A method for predicting short-term cloud coverage includes a computer calculating an estimated cloud velocity field at a current time value based on sky images. The computer determines a segmented cloud model based on the sky images, a future sun location corresponding to a future time value, and sun pixel locations at the future time value based on the future sun location. Next, the computer applies a back-propagation algorithm to the sun pixel locations using the estimated cloud velocity field to yield propagated sun pixel locations corresponding to a previous time value. Then, the computer predicts cloud coverage for the future sun location based on the propagated sun pixel locations and the segmented cloud model.
Public/Granted literature
- EP3132291B1 SHORT TERM CLOUD COVERAGE PREDICTION USING GROUND-BASED ALL SKY IMAGING Public/Granted day:2018-06-06
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