95 lines
2.9 KiB
Bash
95 lines
2.9 KiB
Bash
#!/bin/bash
|
|
# edl21.sh reads data from the EDL21 electricity meter and writes it up to a MySQL/MariaDB.
|
|
# https://code.hw12.org/tilman/edl21
|
|
#
|
|
# Version 0.5 - 03.03.2019
|
|
#
|
|
# License GPL3.0 or later
|
|
# https://code.hw12.org/tilman/edl21/src/branch/master/LICENSE
|
|
|
|
#Device configuration
|
|
INPUT_DEV="/dev/ttyUSB0";
|
|
stty -F $INPUT_DEV 1:0:8bd:0:3:1c:7f:15:4:5:1:0:11:13:1a:0:12:f:17:16:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0
|
|
|
|
#Log file and temporary txt.
|
|
FILE=$PFAD"/"$DATE."txt";
|
|
LOG=$PFAD"/edl.log";
|
|
PFAD=$(dirname "$(readlink -e "$0")");
|
|
|
|
#Database
|
|
DB_USER="dbuser";
|
|
DB_PASS="dbpasswd";
|
|
DB_HOST="dbhost";
|
|
DB_NAME="dbname";
|
|
DB_TAB="dbtable";
|
|
|
|
#Get date and round to nearest 5min (for harmonized use with data from other scripts in pChart)
|
|
DATE_RAW=$(/bin/date +%s);
|
|
DATE=$(/bin/date -d @$DATE_RAW "+%Y-%m-%d %H:%M:%S");
|
|
DATE_N5M=$(echo "($DATE_RAW % 300)"|bc);
|
|
|
|
if [ $DATE_N5M -lt 150 ];then
|
|
DATE_N5M=$(echo "($DATE_RAW - ($DATE_RAW % 300))"|bc);
|
|
else
|
|
DATE_N5M=$(echo "($DATE_RAW - ($DATE_RAW % 300) + 300)"|bc);
|
|
fi
|
|
DATE_N5M=$(/bin/date -d @$DATE_N5M "+%Y-%m-%d %H:%M:%S");
|
|
|
|
#Starting sequence
|
|
SEQ_START="1B1B1B1B01010101";
|
|
#Ending sequence
|
|
SEQ_END="001B1B1B1B1A00";
|
|
#Start of counter 1.8.0 (incoming active energy)
|
|
SEQ_180="070100010800FF";
|
|
#Start of counter 2.8.0 (outgoing acive energy)
|
|
SEQ_280="070100020800FF";
|
|
#Start of actual aktive power
|
|
SEQ_PWR="070100100700FF";
|
|
#Max possiple power value as mark of power direction
|
|
INOUT=2147483647;
|
|
|
|
#Read from device
|
|
cat $INPUT_DEV 2>/dev/null | xxd -p -u -l 600 1> $FILE;
|
|
|
|
#Delete line breaks
|
|
STRING=`tr -d "\n" < $FILE`;
|
|
#Find first starting sequence forwards and delete everything before
|
|
STRING=${STRING#*$SEQ_START};
|
|
#Find last ending sequence backwards and delete everything behind
|
|
STRING=${STRING%%$SEQ_END*};
|
|
|
|
#Identify incoming active energy value and transform from hex to decimal
|
|
STRING_180=${STRING#*$SEQ_180};
|
|
let STRING_180=0x${STRING_180:20:10};
|
|
|
|
#Identify outgoing active energy value and transform from hex to decimal
|
|
STRING_280=${STRING#*$SEQ_280};
|
|
let STRING_280=0x${STRING_280:20:10};
|
|
|
|
#Identify active power value and transform from hex to decimal.
|
|
STRING_PWR=${STRING#*$SEQ_PWR};
|
|
let STRING_PWR=0x${STRING_PWR:14:8};
|
|
|
|
#Calculate direction of active power and convert in W (Watt)
|
|
if [ $STRING_PWR -gt $INOUT ]; then
|
|
STRING_PWR_OUT=$(echo "(4294967295 - $STRING_PWR) / (10)"|bc);
|
|
STRING_PWR_IN=0;
|
|
else
|
|
STRING_PWR_IN=$(echo "$STRING_PWR / 10"|bc);
|
|
STRING_PWR_OUT=0;
|
|
fi
|
|
|
|
#Convert both active energy values in Wh (Watt hours)
|
|
STRING_180=$(echo "scale=4; $STRING_180 / 10" |bc);
|
|
STRING_280=$(echo "scale=4; $STRING_280 / 10" |bc);
|
|
|
|
#Write to log file
|
|
echo $DATE";"$DATE_N5M";"$STRING_180";"$STRING_280";"$STRING_PWR_IN";"$STRING_PWR_OUT >> $LOG ;
|
|
|
|
#Send data to database
|
|
mysql -u $DB_USER -p$DB_PASS -h $DB_HOST -D $DB_NAME <<EOF
|
|
INSERT INTO $DB_TAB (TimeStamp,Nearest5min,zaehlerstand_in,zaehlerstand_out,active_in,active_out) VALUES ('$DATE','$DATE_N5M','$STRING_180','$STRING_280','$STRING_PWR_IN','$STRING_PWR_OUT');
|
|
EOF
|
|
|
|
#Delete temporary file
|
|
rm $FILE; |