README.md

@@ -2,11 +2,3 @@
 
 Dieses Script ruft mittels optischem Lesekopf die Daten vom Stromzähler Typ EDL21 ab und überträgt sie in eine MySQL/MariaDB-Datenbank von wo aus sie beliebig weiterverarbeitet werden können (z.B. [pChart](https://github.com/bozhinov/pChart2.0-for-PHP7)).
 
-Es findet kein CRC-Check statt!
-
-### Hintergrundwissen
-http://wiki.volkszaehler.org/hardware/channels/meters/power/edl-ehz/edl21-ehz
-
-http://blog.bubux.de/tag/stromzaehler/ (Vielen Dank!)
-
-

edl21.sh

@@ -2,6 +2,8 @@
 # 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
 
@@ -10,17 +12,16 @@ 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.
-PFAD=$(dirname "$(readlink -e "$0")");
 FILE=$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="EdlData";
-DB_TAB_SNAP="EdlSnapshot";
+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);
@@ -44,13 +45,10 @@ SEQ_180="070100010800FF";
 SEQ_280="070100020800FF";
 #Start of actual aktive power
 SEQ_PWR="070100100700FF";
-#Max possiple power value as mark of power direction (0x7FFFFFFF)
+#Max possiple power value as mark of power direction
 INOUT=2147483647;
-#Max useful power value for error handling (upper threshold in W)
-PWRMAX=10000;
 
 #Read from device
-readNcalc() {
 cat $INPUT_DEV 2>/dev/null | xxd -p -u -l 600 1> $FILE;
 
 #Delete line breaks
@@ -72,44 +70,26 @@ let STRING_280=0x${STRING_280:20:10};
 STRING_PWR=${STRING#*$SEQ_PWR};
 let STRING_PWR=0x${STRING_PWR:14:8};
 
-checkNconvert;
-}
-
-checkNconvert() {
 #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;
- if [ $STRING_PWR_OUT -gt $PWRMAX ]; then
-  readNcalc;
- fi
 else
  STRING_PWR_IN=$(echo "$STRING_PWR / 10"|bc);
  STRING_PWR_OUT=0;
- if [ $STRING_PWR_IN -gt $PWRMAX ]; then
-  readNcalc;
- fi
 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);
 
-logNrock;
-}
-
-logNrock() {
 #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}');
-UPDATE $DB_TAB_SNAP SET TimeStamp='${DATE}',Nearest5min='${DATE_N5M}',zaehlerstand_in='${STRING_180}',zaehlerstand_out='${STRING_280}',active_in='${STRING_PWR_IN}',active_out='${STRING_PWR_OUT}';
+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;
-}
-
-readNcalc;

edldata.sql

@@ -1,17 +1,3 @@
---
--- Tabellenstruktur für Tabelle `DayData`
---
-
-CREATE TABLE `DayData` (
-  `TimeStamp` datetime NOT NULL,
-  `zaehlerstand_in` float NOT NULL,
-  `zaehlerstand_out` float NOT NULL,
-  `active_in` float NOT NULL,
-  `active_out` float NOT NULL
-) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
-
--- --------------------------------------------------------
-
 --
 -- Tabellenstruktur für Tabelle `EdlData`
 --
@@ -25,40 +11,17 @@ CREATE TABLE `EdlData` (
   `active_out` float NOT NULL
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
 
--- --------------------------------------------------------
-
---
--- Tabellenstruktur für Tabelle `EdlSnapshot`
---
-
-CREATE TABLE `EdlSnapshot` (
-  `TimeStamp` datetime NOT NULL,
-  `Nearest5min` datetime NOT NULL,
-  `zaehlerstand_in` float NOT NULL,
-  `zaehlerstand_out` float NOT NULL,
-  `active_in` float NOT NULL,
-  `active_out` float NOT NULL
-) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
-
 --
 -- Indizes der exportierten Tabellen
 --
 
---
--- Indizes für die Tabelle `DayData`
---
-ALTER TABLE `DayData`
-  ADD KEY `TimeStamp` (`TimeStamp`);
-
 --
 -- Indizes für die Tabelle `EdlData`
 --
 ALTER TABLE `EdlData`
   ADD UNIQUE KEY `TimeStamp` (`TimeStamp`);
-
---
--- Indizes für die Tabelle `EdlSnapshot`
---
-ALTER TABLE `EdlSnapshot`
-  ADD UNIQUE KEY `TimeStamp` (`TimeStamp`);
 COMMIT;
+
+/*!40101 SET CHARACTER_SET_CLIENT=@OLD_CHARACTER_SET_CLIENT */;
+/*!40101 SET CHARACTER_SET_RESULTS=@OLD_CHARACTER_SET_RESULTS */;
+/*!40101 SET COLLATION_CONNECTION=@OLD_COLLATION_CONNECTION */;