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functions and handling of stupid power values

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Introduced PWRMAX als treshold for outgoing or incoming power. Before this sometimes useless values occured (e.g. 1000000 W for a normal family home).
Introduced simple functions for the structure and error handling.
This commit is contained in:
tilman 2019-06-05 21:23:11 +02:00
parent 74240e8adf
commit 25504d0b68
1 changed files with 24 additions and 4 deletions
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26
edl21.sh
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@ -2,7 +2,7 @@
# edl21.sh reads data from the EDL21 electricity meter and writes it up to a MySQL/MariaDB. # edl21.sh reads data from the EDL21 electricity meter and writes it up to a MySQL/MariaDB.
# https://code.hw12.org/tilman/edl21 # https://code.hw12.org/tilman/edl21
# #
# Version 0.5 - 03.03.2019 # Version 0.6 - 05.06.2019
# #
# License GPL3.0 or later # License GPL3.0 or later
# https://code.hw12.org/tilman/edl21/src/branch/master/LICENSE # https://code.hw12.org/tilman/edl21/src/branch/master/LICENSE
@ -12,9 +12,9 @@ INPUT_DEV="/dev/ttyUSB0";
stty -F $INPUT_DEV 1:0:8bd:0:3:1c:7f:15:4:5:1:0:11:13:1a:0:12:f:17:16:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0 stty -F $INPUT_DEV 1:0:8bd:0:3:1c:7f:15:4:5:1:0:11:13:1a:0:12:f:17:16:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0
#Log file and temporary txt. #Log file and temporary txt.
PFAD=$(dirname "$(readlink -e "$0")");
FILE=$PFAD"/"$DATE."txt"; FILE=$PFAD"/"$DATE."txt";
LOG=$PFAD"/edl.log"; LOG=$PFAD"/edl.log";
PFAD=$(dirname "$(readlink -e "$0")");
#Database #Database
DB_USER="dbuser"; DB_USER="dbuser";
@ -45,10 +45,13 @@ SEQ_180="070100010800FF";
SEQ_280="070100020800FF"; SEQ_280="070100020800FF";
#Start of actual aktive power #Start of actual aktive power
SEQ_PWR="070100100700FF"; SEQ_PWR="070100100700FF";
#Max possiple power value as mark of power direction #Max possiple power value as mark of power direction (0x7FFFFFFF)
INOUT=2147483647; INOUT=2147483647;
#Max useful power value for error handling (upper threshold in W)
PWRMAX=10000;
#Read from device #Read from device
readNcalc() {
cat $INPUT_DEV 2>/dev/null | xxd -p -u -l 600 1> $FILE; cat $INPUT_DEV 2>/dev/null | xxd -p -u -l 600 1> $FILE;
#Delete line breaks #Delete line breaks
@ -70,19 +73,33 @@ let STRING_280=0x${STRING_280:20:10};
STRING_PWR=${STRING#*$SEQ_PWR}; STRING_PWR=${STRING#*$SEQ_PWR};
let STRING_PWR=0x${STRING_PWR:14:8}; let STRING_PWR=0x${STRING_PWR:14:8};
checkNconvert;
}
checkNconvert() {
#Calculate direction of active power and convert in W (Watt) #Calculate direction of active power and convert in W (Watt)
if [ $STRING_PWR -gt $INOUT ]; then if [ $STRING_PWR -gt $INOUT ]; then
STRING_PWR_OUT=$(echo "(4294967295 - $STRING_PWR) / (10)"|bc); STRING_PWR_OUT=$(echo "(4294967295 - $STRING_PWR) / (10)"|bc);
STRING_PWR_IN=0; STRING_PWR_IN=0;
if [ $STRING_PWR_OUT -gt $PWRMAX ]; then
readNcalc;
fi
else else
STRING_PWR_IN=$(echo "$STRING_PWR / 10"|bc); STRING_PWR_IN=$(echo "$STRING_PWR / 10"|bc);
STRING_PWR_OUT=0; STRING_PWR_OUT=0;
if [ $STRING_PWR_IN -gt $PWRMAX ]; then
readNcalc;
fi
fi fi
#Convert both active energy values in Wh (Watt hours) #Convert both active energy values in Wh (Watt hours)
STRING_180=$(echo "scale=4; $STRING_180 / 10" |bc); STRING_180=$(echo "scale=4; $STRING_180 / 10" |bc);
STRING_280=$(echo "scale=4; $STRING_280 / 10" |bc); STRING_280=$(echo "scale=4; $STRING_280 / 10" |bc);
logNrock;
}
logNrock() {
#Write to log file #Write to log file
echo $DATE";"$DATE_N5M";"$STRING_180";"$STRING_280";"$STRING_PWR_IN";"$STRING_PWR_OUT >> $LOG ; echo $DATE";"$DATE_N5M";"$STRING_180";"$STRING_280";"$STRING_PWR_IN";"$STRING_PWR_OUT >> $LOG ;
@ -93,3 +110,6 @@ EOF
#Delete temporary file #Delete temporary file
rm $FILE; rm $FILE;
}
readNcalc;