change schema

schema/create-schema.sql

@@ -17,29 +17,39 @@ create table variable_t (
     variable_id varchar(16) not null,
     label varchar(128) not null unique,
     unit varchar(16),
+    quantity varchar(32),
     unique (app, converter_id, device_id, variable_id)
 );
 
 create table measurement_t (
     time timestamp without time zone not null,
-    application varchar(128) not null,
+    variable integer references variable_t (id),
-    variable varchar(128) not null,
-    unit varchar(16),
     value float
 );
 
 select create_hypertable('measurement_t', 'time');
 
 insert into application_t (app_id, label) values('ku226', 'Kupferdreher Str. 226, Essen');
-insert into variable_t (app, converter_id, device_id, variable_id, label, unit)
+insert into variable_t (app, converter_id, device_id, variable_id, label, unit, quantity)
-	values ((select id from application_t where app_id = 'ku226'), '1', 'bhkw', 'u', 'BHKW Spannung', 'V'),
+	values ((select id from application_t where app_id = 'ku226'), '1', 'bhkw', 'u', 'BHKW Spannung', 'V', 'voltage'),
-	       ((select id from application_t where app_id = 'ku226'), '1', 'bhkw', 'p', 'BHKW Leistung', 'W'),
+	       ((select id from application_t where app_id = 'ku226'), '1', 'bhkw', 'p', 'BHKW Leistung', 'W', 'power'),
-               ((select id from application_t where app_id = 'ku226'), '1', 'bhkw', 'import', 'BHKW Energie Export', 'Wh'),
+               ((select id from application_t where app_id = 'ku226'), '1', 'bhkw', 'import', 'BHKW Energie Export', 'Wh', 'energy'),
-               ((select id from application_t where app_id = 'ku226'), '1', 'bhkw', 'export', 'BHKW Energie Import', 'Wh'),
+               ((select id from application_t where app_id = 'ku226'), '1', 'bhkw', 'export', 'BHKW Energie Import', 'Wh', 'energy'),
-               ((select id from application_t where app_id = 'ku226'), '1', 'pv', 'u', 'PV Spannung', 'V'),
+               ((select id from application_t where app_id = 'ku226'), '1', 'pv', 'u', 'PV Spannung', 'V', 'voltage'),
-               ((select id from application_t where app_id = 'ku226'), '1', 'pv', 'p', 'PV Leistung', 'W'),
+               ((select id from application_t where app_id = 'ku226'), '1', 'pv', 'p', 'PV Leistung', 'W', 'power'),
-               ((select id from application_t where app_id = 'ku226'), '1', 'pv', 'import', 'PV Energie Export', 'Wh'),
+               ((select id from application_t where app_id = 'ku226'), '1', 'pv', 'import', 'PV Energie Export', 'Wh', 'energy'),
-               ((select id from application_t where app_id = 'ku226'), '1', 'pv', 'export', 'PV Energie Import', 'Wh')
+               ((select id from application_t where app_id = 'ku226'), '1', 'pv', 'export', 'PV Energie Import', 'Wh', 'energy'),
+               ((select id from application_t where app_id = 'ku226'), '3', 'mains', 'import', 'Netz Energie Import', 'Wh', 'energy'),
+               ((select id from application_t where app_id = 'ku226'), '1', 'w1', 'p', 'Wohnung 1 Leistung', 'W', 'power'),
+               ((select id from application_t where app_id = 'ku226'), '1', 'w1', 'import', 'Wohnung 1 Energie Import', 'Wh', 'energy'),
+               ((select id from application_t where app_id = 'ku226'), '1', 'w2', 'p', 'Wohnung 2 Leistung', 'W', 'power'),
+               ((select id from application_t where app_id = 'ku226'), '1', 'w2', 'import', 'Wohnung 2 Energie Import', 'Wh', 'energy'),
+               ((select id from application_t where app_id = 'ku226'), '1', 'w3', 'p', 'Wohnung 3 Leistung', 'W', 'power'),
+               ((select id from application_t where app_id = 'ku226'), '1', 'w3', 'import', 'Wohnung 3 Energie Import', 'Wh', 'energy'),
+               ((select id from application_t where app_id = 'ku226'), '1', 'w4', 'p', 'Wohnung 4 Leistung', 'W', 'power'),
+               ((select id from application_t where app_id = 'ku226'), '1', 'w4', 'import', 'Wohnung 4 Energie Import', 'Wh', 'energy'),
+               ((select id from application_t where app_id = 'ku226'), '1', 'w5', 'p', 'Wohnung 5 Leistung', 'W', 'power'),
+               ((select id from application_t where app_id = 'ku226'), '1', 'w5', 'import', 'Wohnung 5 Energie Import', 'Wh', 'energy')
 	;
 
 
@@ -49,4 +59,5 @@ insert into variable_t (app, converter_id, device_id, variable_id, label, unit)
 grant select on application_t to preprocessor;
 grant select on variable_t to preprocessor;
 grant insert on measurement_t to preprocessor;
+grant select on measurement_t to grafana;
 

src/preprocess.py

@@ -46,7 +46,9 @@ class DbOp(object):
                                 select 
                                    a.label as application,
                                    v.label as variable,
-                                   v.unit as unit
+                                   v.quantity as quantity,
+                                   v.unit as unit,
+                                   v.id as vid
                                  from application_t a, variable_t v
                                  where a.app_id = %(appId)s and
                                        v.app = a.id and
@@ -60,7 +62,9 @@ class DbOp(object):
                     variable = {
                         'application': res[0],
                         'variable': res[1],
-                        'unit': res[2]
+                        'quantity': res[2]
+                        'unit': res[3],
+                        'vid': res[4]
                     }
                 logger.debug(f"{variable=}")
             return variable
@@ -78,14 +82,12 @@ class DbOp(object):
             with conn:
                 with conn.cursor() as cur:
                     cur.execute("""
-                        insert into measurement_t (time, application, variable, value, unit) 
+                        insert into measurement_t (time, variable, value) 
-                            values (now(), %(application)s, %(variable)s, %(value)s, %(unit)s)
+                            values (now(), %(vid)s, %(value)s)
                         """,
                         { 
-                            'application': measurement['application'], 
+                            'vid': measurement['vid'],
-                            'variable': measurement['variable'],
                             'value': measurement['value'],
-                            'unit': measurement['unit']
                         }
                     )
         except Exception as e:
@@ -126,9 +128,7 @@ def mqttOnMessageCallback(client, userdata, message):
         dbh = DbOp(config)
         variable = dbh.getVariable(appId, converterId, deviceId, variableId)
         measurement = {
-            "application": variable["application"],
+            "vid": variable["vid"],
-            "variable": variable["variable"],
-            "unit": variable["unit"],
             "value": float(payload)
         }