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Zeile 2:
Zeile 2: − To calculate the solar position with a microcontroller (on a fixed geographic place) + Zeile 21:
Zeile 21: − To calculate the solar azimuth and elevation exactly+ − you need very involved formulas. However, for practical+ Zeile 47:
Zeile 47: +
Solar Arduino tracker (Quelltext anzeigen)
Version vom 3. März 2011, 13:36 Uhr
, 13:36, 3. Mär. 2011→General considerations
=General considerations=
=General considerations=
For calculation the solar position with a microcontroller (on a fixed geographic place)
you have to solve two problems:
you have to solve two problems:
The controller needs a time device (typically a battery buffered chip like in a PC)
The controller needs a time device (typically a battery buffered chip like in a PC)
==Calculate Azimuth and Elevation==
==Calculate Azimuth and Elevation==
The formulas for exact calculation of solar azimuth and elevation
are very involved. However, for practical
purposes like sun tracking of a heliostat there are
purposes like sun tracking of a heliostat there are
simpler ones available.
simpler ones available.
[http://klaus.e175.net/solarpositioning Klaus Brunner]. It was also a valuable help for debugging
[http://klaus.e175.net/solarpositioning Klaus Brunner]. It was also a valuable help for debugging
the Arduino implementation.
the Arduino implementation.
--[[User:Hannes.hassler|Hannes.hassler]] 13:36, 3 March 2011 (CET)