From: Dirk Koopman <djk@tobit.co.uk>
Date: Mon, 14 Jul 2014 16:33:50 +0000 (+0100)
Subject: Fix rain, move things about in hour/min recs
X-Git-Url: http://scm.dxcluster.org/gitweb/gitweb.cgi?a=commitdiff_plain;h=849ae984242339ff7b8baa14517a4453e285800d;p=dweather.git

Fix rain, move things about in hour/min recs

Add a series of rain deltas: rain, rain_1m, rain_1h (per loop,
per minute, per hour).
Moved the state machine debugging into isdbg 'state'.
---

diff --git a/loop.pl b/loop.pl
index a01ff5c..e4a1fb6 100755
--- a/loop.pl
+++ b/loop.pl
@@ -22,11 +22,17 @@ my $buf;
 my $dbg;
 my $last_reading;
 my $s;							# the serial port Mojo::IOLoop::Stream
+our $ending = 0;
 
 our $json = JSON->new->canonical(1);
 
 our $last_min = int(time/60)*60;
-our $last_hour = int(time/3600)*3600;
+our $last_hour = 0;
+our $last_rain_hour;
+our $last_rain_min;
+our $last_rain;
+
+our $loop_count;				# how many LOOPs we have done, used as start indicator
 
 our	@crc_table = (
 				  0x0, 0x1021, 0x2042, 0x3063, 0x4084, 0x50a5, 0x60c6, 0x70e7,
@@ -73,9 +79,10 @@ $bar_trend{0} = "Steady";
 $bar_trend{20} = "Rising Slowly";
 $bar_trend{60} = "Rising Rapidly";
 
-my $ending;
+our $ending = 0;
 
 $SIG{TERM} = $SIG{INT} = sub {++$ending; Mojo::IOLoop->stop;};
+$SIG{HUP} = 'IGNORE';
 
 dbginit();
 if (@ARGV) {
@@ -108,7 +115,7 @@ sub on_read
 	$d =~ s/([\%\x00-\x1f\x7f-\xff])/sprintf("%%%02X", ord($1))/eg; 
 	dbg "read added '$d' buf lth=" . length $buf if isdbg 'raw';
 	if ($state eq 'waitnl' && $buf =~ /[\cJ\cM]+/) {
-		dbg "Got \\n" if isdbg 'chan';
+		dbg "Got \\n" if isdbg 'state';
 		Mojo::IOLoop->remove($tid) if $tid;
 		undef $tid;
 		undef $buf;
@@ -117,7 +124,7 @@ sub on_read
 		chgstate("waitloop");
 	} elsif ($state eq "waitloop") {
 		if ($buf =~ /\x06/) {
-			dbg "Got ACK 0x06" if isdbg 'chan';
+			dbg "Got ACK 0x06" if isdbg 'state';
 			chgstate('waitlooprec');
 			undef $buf;
 		}
@@ -134,7 +141,7 @@ sub on_read
 sub start_loop
 {
 	$nlcount = 1;
-	dbg "start_loop writing $nlcount \\n" if isdbg 'chan';
+	dbg "start_loop writing $nlcount \\n" if isdbg 'state';
 	$s->write("\n");
 	Mojo::IOLoop->remove($tid) if $tid;
 	undef $tid;
@@ -144,7 +151,7 @@ sub start_loop
 										   do_reopen($devname);
 										   return;
 									   }
-									   dbg "writing $nlcount \\n" if isdbg 'chan'; 
+									   dbg "writing $nlcount \\n" if isdbg 'state'; 
 									   $s->write("\n");
 								   });
 	chgstate("waitnl");
@@ -152,7 +159,7 @@ sub start_loop
 
 sub chgstate
 {
-	dbg "state '$state' -> '$_[0]'" if isdbg 'chan';
+	dbg "state '$state' -> '$_[0]'" if isdbg 'state';
 	$state = $_[0];
 }
 
@@ -210,125 +217,147 @@ sub process
 		dbg "Block invalid loo -> $loo" if isdbg 'chan'; return;
 	}
 
-	my $t;
+	my $tmp;
+	my $rain;
 	my %h;
 
 	# Common ones
-	$h{Pressure_Trend}    = unpack("C", substr $blk,3,1);
-	$h{Pressure_Trend_txt} = $bar_trend{$h{'Pressure_Trend'}};
-	$t = unpack("s", substr $blk,7,2) / 1000;
-	$h{Pressure} = sprintf("%.0f",in2mb($t))+0;
+	$tmp = unpack("s", substr $blk,7,2) / 1000;
+	$h{Pressure} = sprintf("%.0f",in2mb($tmp))+0;
 
-	$t = unpack("s", substr $blk,9,2) / 10;
-	$h{Temp_In} = sprintf("%.1f", f2c($t))+0;
+	$tmp = unpack("s", substr $blk,9,2) / 10;
+	$h{Temp_In} = sprintf("%.1f", f2c($tmp))+0;
 	
-	$t  = unpack("s", substr $blk,12,2) / 10;
-	$h{Temp_Out}  = sprintf("%.1f", f2c($t))+0;
+	$tmp  = unpack("s", substr $blk,12,2) / 10;
+	$h{Temp_Out}  = sprintf("%.1f", f2c($tmp))+0;
 
-	$t = unpack("C", substr $blk,14,1);
-	$h{Wind} = sprintf("%.1f",mph2mps($t))+0;
+	$tmp = unpack("C", substr $blk,14,1);
+	$h{Wind} = sprintf("%.1f",mph2mps($tmp))+0;
 	$h{Dir}     = unpack("s", substr $blk,16,2)+0;
 
 	my $wind = {w => $h{Wind}, d => $h{Dir}};
 	push @min, $wind;
 
-	$h{'Humidity_Out'} = unpack("C", substr $blk,33,1)+0;
-	$h{'Humidity_In'}  = unpack("C", substr $blk,11,1)+0;
+	$h{Humidity_Out} = unpack("C", substr $blk,33,1)+0;
+	$h{Humidity_In}  = unpack("C", substr $blk,11,1)+0;
 
-	$t = unpack("C", substr $blk,43,1)+0;
-	$h{'UV'} = $t unless $t >= 255;
-	$t = unpack("s", substr $blk,44,2)+0;	# watt/m**2
-	$h{'Solar'} = $t unless $t >= 32767;
+	$tmp = unpack("C", substr $blk,43,1)+0;
+	$h{UV} = $tmp unless $tmp >= 255;
+	$tmp = unpack("s", substr $blk,44,2)+0;	# watt/m**2
+	$h{Solar} = $tmp unless $tmp >= 32767;
 
-	$h{'Rain_Rate'}  = sprintf("%0.1f",unpack("s", substr $blk,41,2) * $rain_mult)+0;
-	$h{'Rain_Day'}   = sprintf("%0.1f", unpack("s", substr $blk,50,2) * $rain_mult)+0;
+#	$h{Rain_Rate}  = sprintf("%0.1f",unpack("s", substr $blk,41,2) * $rain_mult)+0;
+	$rain = $h{Rain_Day}   = sprintf("%0.1f", unpack("s", substr $blk,50,2) * $rain_mult)+0;
+	$h{Rain} = ($rain >= $last_rain ? $rain - $last_rain : $rain) if $loop_count;
+	$last_rain = $rain;
 
 	# what sort of packet is it?
 
-	$t =  unpack("C", substr $blk,4,1);
-	if ($t) {
+	my $sort =  unpack("C", substr $blk,4,1);
+	if ($sort) {
 
 		# Newer LOOP2 packet
-		$t = unpack("C", substr $blk,18,2);
-#		$h{Wind_Avg_10} = sprintf("%.1f",mph2mps($t/10))+0;
-		$t = unpack("C", substr $blk,20,2);
-#		$h{Wind_Avg_2} = sprintf("%.1f",mph2mps($t/10))+0;
-		$t = unpack("C", substr $blk,22,2);
-#		$h{Wind_Gust_10} = sprintf("%.1f",mph2mps($t/10))+0;
-	   
+		$tmp = unpack("C", substr $blk,18,2);
+#		$h{Wind_Avg_10} = sprintf("%.1f",mph2mps($tmp/10))+0;
+		$tmp = unpack("C", substr $blk,20,2);
+#		$h{Wind_Avg_2} = sprintf("%.1f",mph2mps($tmp/10))+0;
+		$tmp = unpack("C", substr $blk,22,2);
+#		$h{Wind_Gust_10} = sprintf("%.1f",mph2mps($tmp/10))+0;
+
 #		$h{Dir_Avg_10} = unpack("C", substr $blk,24,2)+0;
-		$t = unpack("C", substr $blk,30,2);
-		$h{Dew_Point} = sprintf("%0.1f", f2c($t))+0;
+		$tmp = unpack("C", substr $blk,30,2);
+		$h{Dew_Point} = sprintf("%0.1f", f2c($tmp))+0;
 
 	} else {
-		
+
 		# Older LOOP packet
-		$t = unpack("C", substr $blk,15,1);
-#		$h{Wind_Avg_10} = sprintf("%.1f",mph2mps($t))+0;
-		$h{'Dew_Point'}  = sprintf("%0.1f", dew_point($h{Temp_Out}, $h{'Humidity_Out'}))+0;
-
-		$h{'Rain_Month'}  = sprintf("%0.1f", unpack("s", substr $blk,52,2) * $rain_mult)+0;
-		$h{'Rain_Year'}  = sprintf("%0.1f", unpack("s", substr $blk,54,2) * $rain_mult)+0;
-
-
-		$h{'Batt_TX_OK'}  = (unpack("C", substr $blk,86,1)+0) ^ 1;
-		$h{'Batt_Console'}  = sprintf("%0.2f", unpack("s", substr $blk,87,2) * 0.005859375)+0;
-		$h{'Forecast_Icon'}  = unpack("C", substr $blk,89,1);
-		$h{'Forecast_Rule'}  = unpack("C", substr $blk,90,1);
-		
-		$h{'Sunrise'}  = sprintf( "%04d", unpack("S", substr $blk,91,2) );
-		$h{'Sunrise'}  =~ s/(\d{2})(\d{2})/$1:$2/;
-		$h{'Sunset'}   = sprintf( "%04d", unpack("S", substr $blk,93,2) );
-		$h{'Sunset'}  =~ s/(\d{2})(\d{2})/$1:$2/;
+		$tmp = unpack("C", substr $blk,15,1);
+#		$h{Wind_Avg_10} = sprintf("%.1f",mph2mps($tmp))+0;
+		$h{Dew_Point}  = sprintf("%0.1f", dew_point($h{Temp_Out}, $h{Humidity_Out}))+0;
+		$h{Rain_Month}  = sprintf("%0.1f", unpack("s", substr $blk,52,2) * $rain_mult)+0;
+		$h{Rain_Year}  = sprintf("%0.1f", unpack("s", substr $blk,54,2) * $rain_mult)+0;
+
 	}
 
-	my $crc = unpack "%n", substr($blk,97,2);
 	my $crc_calc = CRC_CCITT($blk);
 
 	if ($crc_calc==0) {
-		my $o = gen_hash_diff($last_reading, \%h);
-		$last_reading = \%h;
-		my $t = time;
+		my $ts = time;
 		my $j;
-		my $s;
-		if ($t >= $last_min + 60) {
-			my $a = average(@min);
-			push @hour, $a;
+		my $str;
+		if ($ts >= $last_hour + 3600) {
+			$h{Pressure_Trend}    = unpack("C", substr $blk,3,1);
+			$h{Pressure_Trend_txt} = $bar_trend{$h{Pressure_Trend}};
+			$h{Batt_TX_OK}  = (unpack("C", substr $blk,86,1)+0) ^ 1;
+			$h{Batt_Console}  = sprintf("%0.2f", unpack("s", substr $blk,87,2) * 0.005859375)+0;
+			$h{Forecast_Icon}  = unpack("C", substr $blk,89,1);
+			$h{Forecast_Rule}  = unpack("C", substr $blk,90,1);
+			$h{Sunrise}  = sprintf( "%04d", unpack("S", substr $blk,91,2) );
+			$h{Sunrise}  =~ s/(\d{2})(\d{2})/$1:$2/;
+			$h{Sunset}   = sprintf( "%04d", unpack("S", substr $blk,93,2) );
+			$h{Sunset}  =~ s/(\d{2})(\d{2})/$1:$2/;
+
+			if ($loop_count) {	# i.e not the first
+				my $a = average(scalar @hour ? @hour : {w => $h{Wind}, d => $h{Dir}});
 
-			$h{Wind_1m} = sprintf("%0.1f", $a->{w})+0;
-			$h{Dir_1m} = sprintf("%0.0f", $a->{d})+0;
-			
-			$j = $json->encode(\%h);
-			$s = qq|{"t":$t,"m":$j}|;
-			$last_min = $t;
-			@min = ();
-			if ($t >= $last_hour + 3600) {
-				my $a = average(@hour);
-				
-				delete $h{Wind_1m};
-				delete $h{Dir_1m};
 				$h{Wind_1h} = sprintf("%0.1f", $a->{w})+0;
 				$h{Dir_1h} = sprintf("%0.0f", $a->{d})+0;
+				$h{Rain_1h} = $rain >= $last_rain_hour ? $rain - $last_rain_hour : $rain;
+
+				$h{Wind_1m} = sprintf("%0.1f", $a->{w})+0;
+				$h{Dir_1m} = sprintf("%0.0f", $a->{d})+0;
+				$h{Rain_1m} = $rain >= $last_rain_min ? $rain - $last_rain_min : $rain;
+			}
+			$last_rain_min = $last_rain_hour = $rain;
+
+			$j = $json->encode(\%h);
+			$str = qq|{"t":$ts,"h":$j}|;
+			$last_hour = int($ts/3600)*3600;
+			$last_min = int($ts/60)*60;
+			@hour = ();
+			@min = ();
+		} elsif ($ts >= $last_min + 60) {
+			my $a = average(@min);
+			my %save;
+
+			push @hour, $a;
 
-				$j = $json->encode(\%h);
-				$s = qq|{"t":$t,"h":$j}|;
-				$last_hour = $t;
-				@hour = ();
+			if ($loop_count) {	# i.e not the first
+				$h{Wind_1m} = sprintf("%0.1f", $a->{w})+0;
+				$h{Dir_1m} = sprintf("%0.0f", $a->{d})+0;
+				$h{Rain_1h} = $rain >= $last_rain_hour ? $rain - $last_rain_hour : $rain; # this is the rate for this hour, so far
+				$h{Rain_1m} = $rain >= $last_rain_min ? $rain - $last_rain_min : $rain;
 			}
-		} elsif ($o) {
-			$j = $json->encode($o);
-			$s = qq|{"t":$t,"r":$j}|;
+			$last_rain_min = $rain;
+
+			$j = $json->encode(\%h);
+			$str = qq|{"t":$ts,"m":$j}|;
+			$last_min = int($ts/60)*60;
+			@min = ();
 		} else {
-			dbg "loop rec not changed" if isdbg 'chan';
-		}
-		if ($s) {
-			dbg $s;
-			say $s;
-			$dlog->writenow($s);
+			my $o = gen_hash_diff($last_reading, \%h);
+			if ($o) {
+				$j = $json->encode($o);
+				$str = qq|{"t":$ts,"r":$j}|;
+			} else {
+				dbg "loop rec not changed" if isdbg 'chan';
+			}
 		}
+		output_str($str) if $str;
+		$last_reading = \%h;
+		++$loop_count;
 	} else {
 		dbg "CRC check failed for LOOP data!";
 	}
+	return;
+}
+
+sub output_str
+{
+	my $str = shift;
+	dbg $str;
+#	say $str;
+	$dlog->writenow($str);
 }
 
 sub gen_hash_diff