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- fixes the rare but relevant case of two subsequent calls within one seconds (previously led to a division by zero error)

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git-svn-id: https://svn.fhem.de/fhem/trunk@346 2b470e98-0d58-463d-a4d8-8e2adae1ed80
This commit is contained in:
borisneubert 2009-02-02 18:29:33 +00:00
parent dfe6c48c3f
commit 0c8f975e5d
1 changed files with 13 additions and 13 deletions
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26
fhem/FHEM/13_KS300.pm
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@ -173,20 +173,20 @@ KS300_Parse($$)
# The code also handles counter resets after battery replacement
my $rain_raw_delta= $rain_raw- $rain_raw_prev;
my $thours_delta= ($tsecs- $tsecs_prev)/3600.0; # in hours
my $rain_raw_per_hour= $rain_raw_delta/$thours_delta;
if(($rain_raw_delta<0) || ($rain_raw_per_hour> 200.0)) {
$rain_raw_ofs= $rain_raw_ofs_prev-$rain_raw_delta;
# If the switch in the tick count occurs simultaneously with an
# increase due to rain, the tick is lost. We therefore assume that
# offsets between -5 and 0 are indeed rain.
if(($rain_raw_ofs>=-5) && ($rain_raw_ofs<0)) { $rain_raw_ofs= 0; }
$r->{rain_raw_ofs}{TIME} = $tm;
$r->{rain_raw_ofs}{VAL} = $rain_raw_ofs;
$def->{CHANGED}[$n++] = "rain_raw_ofs: $rain_raw_ofs";
if($tsecs!= $tsecs_prev) { # avoids a rare but relevant condition
my $thours_delta= ($tsecs- $tsecs_prev)/3600.0; # in hours
my $rain_raw_per_hour= $rain_raw_delta/$thours_delta;
if(($rain_raw_delta<0) || ($rain_raw_per_hour> 200.0)) {
$rain_raw_ofs= $rain_raw_ofs_prev-$rain_raw_delta;
# If the switch in the tick count occurs simultaneously with an
# increase due to rain, the tick is lost. We therefore assume that
# offsets between -5 and 0 are indeed rain.
if(($rain_raw_ofs>=-5) && ($rain_raw_ofs<0)) { $rain_raw_ofs= 0; }
$r->{rain_raw_ofs}{TIME} = $tm;
$r->{rain_raw_ofs}{VAL} = $rain_raw_ofs;
$def->{CHANGED}[$n++] = "rain_raw_ofs: $rain_raw_ofs";
}
}
$rain_raw_adj= $rain_raw+ $rain_raw_ofs;
}