voltage hack

.woodpecker.yml

@@ -1,3 +1,7 @@
+when:
+  - event: tag
+
+
 steps:
   build:
     image: golang:1.22.5-alpine3.20
@@ -7,8 +11,6 @@ steps:
       - go mod tidy
       - go build -a -installsuffix nocgo -o udi main.go
       - cp udi ../..
-    when:
-      - event: [push, tag]
 
   scan:
     image: quay.io/wollud1969/woodpecker-helper:0.5.1
@@ -43,37 +45,29 @@ steps:
              -F "projectVersion=$TAG" \
              -F "bom=@/tmp/sbom.xml"\
              "$DTRACK_API_URL/api/v1/bom"        
-    when:
-      - event: [push, tag]
 
   dockerize:
     image: plugins/kaniko
     settings:
       repo: ${FORGE_NAME}/${CI_REPO}
       registry: 
-        from_secret: container_registry
-      tags: latest,${CI_COMMIT_SHA},${CI_COMMIT_TAG}
+        from_secret: local_registry
+      tags: latest,${CI_COMMIT_TAG}
       username: 
-        from_secret: container_registry_username
+        from_secret: local_username
       password: 
-        from_secret: container_registry_password
+        from_secret: local_password
       dockerfile: Dockerfile
-    when:
-      - event: [push, tag]
 
   deploy:
-    image: quay.io/wollud1969/woodpecker-helper:0.5.1
+    image: quay.io/wollud1969/k8s-admin-helper:0.4.1
     environment:
       KUBE_CONFIG_CONTENT:
         from_secret: kube_config
-      ENCRYPTION_KEY:
-        from_secret: encryption_key
-      MD5_CHECKSUM:
-        from_secret: secrets_checksum
+      GPG_PASSPHRASE:
+        from_secret: gpg_passphrase
     commands:
       - export IMAGE_TAG=$CI_COMMIT_TAG
       - printf "$KUBE_CONFIG_CONTENT" > /tmp/kubeconfig
       - export KUBECONFIG=/tmp/kubeconfig
       - ./deployment/deploy.sh
-    when:
-      - event: tag

deployment/deploy.sh

@@ -4,6 +4,11 @@ if [ "$IMAGE_TAG" == "" ]; then
   echo "Make sure IMAGE_TAG is set"
   exit 1
 fi
+if [ "$GPG_PASSPHRASE" == "" ]; then
+  echo "Make sure GPG_PASSPHRASE is set"
+  exit 1
+fi
+
 
 
 IMAGE_NAME=$FORGE_NAME/$CI_REPO
@@ -15,7 +20,10 @@ DEPLOYMENT_DIR=$PWD/deployment
 INSTANCES_DIR=$DEPLOYMENT_DIR/instances
 
 pushd $DEPLOYMENT_DIR > /dev/null
-./decrypt-secrets.sh || exit 1 
+# ./decrypt-secrets.sh || exit 1 
+# . /tmp/secrets
+
+gpg --decrypt --yes --batch --passphrase "$GPG_PASSPHRASE" --homedir /tmp/.gnupg -o /tmp/secrets secrets.asc
 . /tmp/secrets
 rm /tmp/secrets
 popd > /dev/null

deployment/instances/udi/default/config.json

@@ -62,6 +62,16 @@
         }
       }
     },
+    {
+      "topics": [ "IoT/Car/Values" ],
+      "handler": "Car",
+      "id": "Car",
+      "config": {
+        "databaseConnStr": "",
+        "attributes": {
+        }
+      }
+    },
     {
       "topics": [ "locative/event/#" ],
       "handler": "Locative",

deployment/secrets.asc

@@ -0,0 +1,20 @@
+-----BEGIN PGP MESSAGE-----
+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+=KCiQ
+-----END PGP MESSAGE-----

deployment/secrets.enc

@@ -1,38 +0,0 @@
-U2FsdGVkX1+v6L4gc+CbYCZyo/UVN7QfmEntIBpk+GAHGf3d7m/4hfcYd39Eh2td
-lXSmNdt1cdFw/UfZ1x1OlGm/fqLh/j/rWPgEc6BwEcDFDEXpTucTjUHNDonYNH8j
-eDWeAGokfguqgQG16CBLHdeyocP0kTPJSrIKQgG1Mzzck/kfB1Z6Ggv4z5KEx2dy
-2rrnm+BeFT1yITwoxa3iJeudcSQznNIqQa+Mx4fUsPV+yorahp4gs0PVVj9POnAT
-yRhpQgkaq5oZNVcYrWS5+6mmhbzL5jIAa4wfzVep/69RcfBkV5Oj5JJGaQzH0T74
-wg8dWz/scdi2kkCn0KroJPrsG/lAsFYhbX4kUJQeRUX1pWr/iwD0i8LRx+f2C82Y
-HgpsnG6c5nPRy68TltgRgCRAIJj87rR/fATVowcpChfe9sXCwfLEZ5Q2hDK8eAPW
-VS87axMkProyHJZe1GK0v9CAVWpXlxv6eAr8u2SftGA87Xu3ebQ4SjReXIcAb7M6
-08UnxW4YcfH+usgU2GUuNlzRctAq334AfBWYQO51l/ELJAzaDi6Ht4Czr6R7Bsfh
-M3ZcjcgqY7j7ywDFmKq/a8Q0Dsjm2sezNtrrRWusomgSKFEf8WncOdkcWOAiza4T
-+Qubfr1SuZuWFF+migGtYM3X8YS+VpmMRIpJ1otibMELgjvldWGqHIK1uIThLq7F
-MvQ0Nog6UNg79/8vrUoEUPPB5fQsXcNC5zcpVMrpJcGogBHhsXk1EPFcB75sx/65
-bl2BZlCBacH9MNIBPh17dMC46EV1FNaLiO1N3/qJkxrkiG5wBDjDlnyMn/mYc/o1
-olNuIO0nnn2x8ZU02lRo8RqcqOywseZeBhAzOj+899n5Qa/0YQAnb0Y9WAxqLft/
-0C45HcK5Kgd3C6wqvVUqcQ/UMxQzv0y1cM8gbfpGjUvJ6gUj7vkW08D55A6gV8Lf
-SrneWAP/1B1mmV16vHaXwoYpTpQwM7i7fHWBOpH7nq6E+0P3LHyon43dYo4P6KM7
-He3R6phTFp36WI4ZCUQafTDZS196Ol2ZyEAonVwSOIEIyptXeoAmleolXC/eL84Z
-bEbhld8g+ulrVSrBXFpCY3jBsqPVBYEpZaGYgevsrHPSbwWa/qQkTKnOO4+oz6Pe
-9iJ1yJbSWfg6Gkr6iqE41Dp4VGXtwTDHHb9YMd56iWHAkxZLFIWdYUr8XfQS6j70
-j5kV3jV/w5EHGYruBdtxAWc7YKq3pfqvh9R7dD/8JOFZhA140+zmOCWG4qdDhv+5
-F9vlawudssa9ZHGi1jBFPCNW13LBhUdyCY3apKF4HHeeuA465uzxIqwtkJSigdun
-vC9ooYZrJjYOnJSTJnKH0WSD0pPC6CIkge+Fxuksq6cst5Zcysw1xz5zs7UNeAP+
-kLs1+8Kn2d1hJuzSWdWlj7xGratLEdA6pqcfBKvMYtY0kpPPDrxm+F1FZ7LyV+dc
-G1vfI6aS2azrFrBNXSeOArJ/erGHIGhWxFY0c3bcGOjXwsLWRjQ03Kdj9ffj6UFL
-4JJaI0I01RilAo+woaZhNmOHl1VxSsU1lDGF7IvW3t0qKLaSg/Rv3pQqdKyjq8I5
-IxPlUEMdo1EDZZx4qLmYBM1tWhgMbn4nx6P2BS7obnPdaf3B0RPxI68Z49RYZKvR
-/wTyr7oWCCRQDwCuVH8t/jUrSWspzEK7ApXHdh7T9JlNurFW7oxc8ylooQrAn3Gn
-mru7X3cUeVtiosAklZ7w+JNxm44IRmDKNVDeAaat+q35EA8MRFGiuXEOeNw54tWH
-zNkUyUJ79Ie7BkGrZFUFqkvfY3Q/xLaBGYDQe65S8/rerybL0YI7RmMiz4x7yq8L
-GoIDwPsn0z/AFefoGTi0tAXZeC+EA62okK1kKR9qrh9gmD59uiMbFX1BHe3rWhgP
-cCPScYeameXV3K6wwQpX8JTdptqMAH5cpEVoUZ/PZZpkaiCuWcMODVbqTpm4SRPt
-Q9s5+6/g0TUUqz7Fwi0dlfnMZVuK0a1Uf/SBYR7f/UYVLfF5juTZ+IRJwQWwp6QX
-CzfYms0W34/srtM72mQOpKTd0o3xuFyVbQtZPOpNghIjArQqwt34nEzXPYHqasDx
-c/yIPdW+B/YVcFPdRV16Izqmjdlupv6pPjY/T6GdHczQsH9gD28HN9+Ka2Cvficf
-evO7IXe0RuvodQ3tB4LmeWoJB10G7Sko2EEfpFTDXke9Ak/5cGrpdPMtbXCAIm1o
-B5UhrqNuUYSWdo0mGttbSjFR7pyLujsxLNnp8teBi33QOUhrSId5+mOvtFDGiZKa
-QCC+W+BIh6IFIwnxH4dDxjz3M65NXzqNV+6mXEFU77cX+oTF4BRe0R/L4nPoaBAN
-smRxtqBItpVFUdsOVb6bXg==

queries/hottis.sql

@@ -129,3 +129,54 @@ create or replace view lora_sht21_v as
     where m.application = 'de-hottis-app01' and 
           m.attributes->>'DeviceType' = 'hottis-gy21' and
           m.device = d.label;
+
+create or replace view ntp_server_snmp_v as
+  select time,
+         device,
+         cast(values->'load1'->>'value'  as float) as laLoad1,
+         cast(values->'lan-in'->>'value'  as int) as lanInOctetsPerSeconds,
+         cast(values->'lan-out'->>'value'  as int) as lanOutOctetsPerSeconds
+    from measurements
+    where application = 'SNMP' and device = '172.16.13.10';
+
+create or replace view ntp_server_variables_v as
+  select time,
+         device,
+         cast(values->'rootdisp'->>'value'  as float) as rootdisp
+    from measurements
+    where application = 'TSM' and device = '172.16.13.10';
+
+
+--  Status            string  `unit:""   json:"status"`
+--  Timestamp         string  `unit:""   json:"timestamp"`
+--  VoltageL1         float32 `unit:"V"  json:"voltageL1"`
+--  VoltageL2         float32 `unit:"V"  json:"voltageL2"`
+--  VoltageL3         float32 `unit:"V"  json:"voltageL3"`
+--  CurrentL1         float32 `unit:"A"  json:"currentL1"`
+--  CurrentL2         float32 `unit:"A"  json:"currentL2"`
+--  CurrentL3         float32 `unit:"A"  json:"currentL3"`
+--  PowerL1           float32 `unit:"W"  json:"powerL1"`
+--  PowerL2           float32 `unit:"W"  json:"powerL2"`
+--  PowerL3           float32 `unit:"W"  json:"powerL3"`
+--  TotalImportEnergy float32 `unit:"Wh" json:"totalImportEnergy"`
+--  TotalExportEnergy float32 `unit:"Wh" json:"totalExportEnergy"`
+--  Cnt               int     `unit:""   json:"cnt"`
+
+
+create or replace view car_values_v as
+  select time, 
+         cast(values->'VoltageL1'->>'value' as float) as voltage_l1,
+         cast(values->'VoltageL2'->>'value' as float) as voltage_l2,
+         cast(values->'VoltageL3'->>'value' as float) as voltage_l3,
+         cast(values->'CurrentL1'->>'value' as float) as current_l1,
+         cast(values->'CurrentL2'->>'value' as float) as current_l2,
+         cast(values->'CurrentL3'->>'value' as float) as current_l3,
+         cast(values->'PowerL1'->>'value' as float) as power_l1,
+         cast(values->'PowerL2'->>'value' as float) as power_l2,
+         cast(values->'PowerL3'->>'value' as float) as power_l3,
+         cast(values->'TotalImportEnergy'->>'value' as float) as total_import_energy,
+         cast(values->'TotalExportEnergy'->>'value' as float) as total_export_energy,
+         values->'Status'->>'value' as status,
+         device
+    from measurements
+    where application = 'Car';

src/udi/dispatcher/dispatcher.go

@@ -1,149 +1,153 @@
 package dispatcher
 
-import "log"
-import "time"
-import "os"
-import "fmt"
-import "net/url"
-import "udi/mqtt"
-import "udi/config"
-import "udi/counter"
-import "udi/handlers/handler"
-import "udi/handlers/ttn"
-import "udi/handlers/iot"
-import "udi/handlers/pv"
-import "udi/handlers/mbgw3"
-import "udi/handlers/sver"
-import "udi/handlers/svej"
-import "udi/handlers/dt1t"
-import "udi/handlers/locative"
-import "udi/handlers/prepared"
-import "udi/handlers/z2m"
-
+import (
+	"fmt"
+	"log"
+	"net/url"
+	"os"
+	"time"
+	"udi/config"
+	"udi/counter"
+	"udi/handlers/car"
+	"udi/handlers/dt1t"
+	"udi/handlers/handler"
+	"udi/handlers/iot"
+	"udi/handlers/locative"
+	"udi/handlers/mbgw3"
+	"udi/handlers/prepared"
+	"udi/handlers/pv"
+	"udi/handlers/svej"
+	"udi/handlers/sver"
+	"udi/handlers/ttn"
+	"udi/handlers/z2m"
+	"udi/mqtt"
+)
 
 var handlerMap map[string]handler.Handler = make(map[string]handler.Handler)
 var archiverChannel chan handler.MessageT = make(chan handler.MessageT, 100)
 
 func InitDispatcher() {
-  log.Printf("Dispatcher initializing")
-  go archiver()
+	log.Printf("Dispatcher initializing")
+	go archiver()
 
-  for _, mapping := range config.Config.TopicMappings {
-    // log.Printf("Trying to initialize %s", mapping)
+	for _, mapping := range config.Config.TopicMappings {
+		// log.Printf("Trying to initialize %s", mapping)
 
-    var factory interface{}
-    switch mapping.Handler {
-    case "TTN":
-      factory = ttn.New
-    case "IoT":
-      factory = iot.New
-    case "PV":
-      factory = pv.New
-    case "MBGW3":
-      factory = mbgw3.New
-    case "SVER":
-      factory = sver.New
-    case "SVEJ":
-      factory = svej.New
-    case "DT1T":
-      factory = dt1t.New
-    case "Locative":
-      factory = locative.New
-    case "PREP":
-      factory = prepared.New
-    case "Z2M":
-      factory = z2m.New
-    default:
-      factory = nil
-      log.Printf("No handler %s found, ignore mapping", mapping.Handler)
-    }
+		var factory interface{}
+		switch mapping.Handler {
+		case "TTN":
+			factory = ttn.New
+		case "IoT":
+			factory = iot.New
+		case "PV":
+			factory = pv.New
+		case "MBGW3":
+			factory = mbgw3.New
+		case "SVER":
+			factory = sver.New
+		case "SVEJ":
+			factory = svej.New
+		case "DT1T":
+			factory = dt1t.New
+		case "Locative":
+			factory = locative.New
+		case "PREP":
+			factory = prepared.New
+		case "Z2M":
+			factory = z2m.New
+		case "Car":
+			factory = car.New
+		default:
+			factory = nil
+			log.Printf("No handler %s found, ignore mapping", mapping.Handler)
+		}
 
-    fn, ok := factory.(func(string, config.HandlerConfigT) handler.Handler)
-    if ! ok {
-      log.Println("Typ Assertion failed")
-      break
-    }
-    handler := fn(mapping.Id, mapping.Config)
-    handlerMap[mapping.Id] = handler
-  }
+		fn, ok := factory.(func(string, config.HandlerConfigT) handler.Handler)
+		if !ok {
+			log.Println("Typ Assertion failed")
+			break
+		}
+		handler := fn(mapping.Id, mapping.Config)
+		handlerMap[mapping.Id] = handler
+	}
 
-  //log.Printf("handlerMap: %s", handlerMap)
+	//log.Printf("handlerMap: %s", handlerMap)
 }
 
 func storeMessage(filename string, item handler.MessageT) {
-  file, err := os.OpenFile(filename, os.O_APPEND | os.O_CREATE | os.O_WRONLY, 0644)
-  if err != nil {
-    log.Printf("Unable to open archiving file %s, message is not archived: %s", filename, err)
-    counter.F("Archived")
-    return
-  }
-  defer file.Close()
-  archivingString := fmt.Sprintf("%s - %s - %s\n", item.Timestamp.Format("2006-01-02 15:04:05"), item.Topic, item.Payload)
-  _, err = file.WriteString(string(archivingString) + "\n")
-  if err != nil {
-    log.Printf("Unable to write message, message is not archived: %s", err)
-    counter.F("Archived")
-    return
-  }
-  //log.Println("Successfully archived message")
-  counter.S("Archived")
+	file, err := os.OpenFile(filename, os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0644)
+	if err != nil {
+		log.Printf("Unable to open archiving file %s, message is not archived: %s", filename, err)
+		counter.F("Archived")
+		return
+	}
+	defer file.Close()
+	archivingString := fmt.Sprintf("%s - %s - %s\n", item.Timestamp.Format("2006-01-02 15:04:05"), item.Topic, item.Payload)
+	_, err = file.WriteString(string(archivingString) + "\n")
+	if err != nil {
+		log.Printf("Unable to write message, message is not archived: %s", err)
+		counter.F("Archived")
+		return
+	}
+	//log.Println("Successfully archived message")
+	counter.S("Archived")
 }
 
 func archiver() {
-  archivingRootDir := config.Config.Archiver.Dir
-  var lastArchivingDir string
+	archivingRootDir := config.Config.Archiver.Dir
+	var lastArchivingDir string
 
-  for {
-    select {
-    case message := <- archiverChannel:
-      currentDateStr := message.Timestamp.Format("2006/01/02/15")
-      currentArchivingDir := archivingRootDir + "/" + currentDateStr
-      if currentArchivingDir != lastArchivingDir {
-        err := os.MkdirAll(currentArchivingDir, 0755)
-        if err != nil {
-          log.Printf("Unable to create archiving dir %s: %s", currentArchivingDir, err)
-          counter.F("Archived")
-        }
-        lastArchivingDir = currentArchivingDir
-        //log.Printf("Archiving dir %s created", currentArchivingDir)
-      }
-      archivingFilename := fmt.Sprintf("%s/%s", currentArchivingDir, url.PathEscape(message.Topic))
-      storeMessage(archivingFilename, message)
-    }
-  }
+	for {
+		select {
+		case message := <-archiverChannel:
+			currentDateStr := message.Timestamp.Format("2006/01/02/15")
+			currentArchivingDir := archivingRootDir + "/" + currentDateStr
+			if currentArchivingDir != lastArchivingDir {
+				err := os.MkdirAll(currentArchivingDir, 0755)
+				if err != nil {
+					log.Printf("Unable to create archiving dir %s: %s", currentArchivingDir, err)
+					counter.F("Archived")
+				}
+				lastArchivingDir = currentArchivingDir
+				//log.Printf("Archiving dir %s created", currentArchivingDir)
+			}
+			archivingFilename := fmt.Sprintf("%s/%s", currentArchivingDir, url.PathEscape(message.Topic))
+			storeMessage(archivingFilename, message)
+		}
+	}
 }
 
 func InputDispatcher() {
-  for {
-    select {
-    case mqttMessage := <- mqtt.InputChannel:
-      //log.Printf("Message arrived in inputDispatcher, topic: %s\n", mqttMessage.Topic)
-      message := handler.MessageT { time.Now(), mqttMessage.Topic, string(mqttMessage.Payload) }
-      archiverChannel <- message
-      handleMessage(message)
-    }
-  }
+	for {
+		select {
+		case mqttMessage := <-mqtt.InputChannel:
+			//log.Printf("Message arrived in inputDispatcher, topic: %s\n", mqttMessage.Topic)
+			message := handler.MessageT{time.Now(), mqttMessage.Topic, string(mqttMessage.Payload)}
+			archiverChannel <- message
+			handleMessage(message)
+		}
+	}
 }
 
 func handleMessage(message handler.MessageT) {
-  for _, mapping := range config.Config.TopicMappings {
-    // log.Printf("Testing %s -> %s", mapping.Topics, mapping.Handler)
-    for _, subscribedTopic := range mapping.Topics {
-      // log.Printf("Testing %s in %s", message.Topic, subscribedTopic)
-      if mqtt.TopicMatchesSubscription(message.Topic, subscribedTopic) {
-        //log.Printf("Handle message in handler %s", mapping.Id)
-        handler, exists := handlerMap[mapping.Id]
-        if exists {
-          handler.Handle(message)
-          counter.S("Dispatched")
-          return
-        } else {
-          log.Printf("Handler %s not found, message %s is lost", mapping.Id, message)
-          counter.F("Dispatched")
-        }
-      }
-    }
-  }
-  log.Printf("No match for topic %s, message %s is lost", message.Topic, message)
-  counter.F("Dispatched")
+	for _, mapping := range config.Config.TopicMappings {
+		// log.Printf("Testing %s -> %s", mapping.Topics, mapping.Handler)
+		for _, subscribedTopic := range mapping.Topics {
+			// log.Printf("Testing %s in %s", message.Topic, subscribedTopic)
+			if mqtt.TopicMatchesSubscription(message.Topic, subscribedTopic) {
+				//log.Printf("Handle message in handler %s", mapping.Id)
+				handler, exists := handlerMap[mapping.Id]
+				if exists {
+					handler.Handle(message)
+					counter.S("Dispatched")
+					return
+				} else {
+					log.Printf("Handler %s not found, message %s is lost", mapping.Id, message)
+					counter.F("Dispatched")
+				}
+			}
+		}
+	}
+	log.Printf("No match for topic %s, message %s is lost", message.Topic, message)
+	counter.F("Dispatched")
 }

src/udi/handlers/car/car.go

@@ -0,0 +1,94 @@
+package car
+
+import (
+	"encoding/json"
+	"log"
+	"reflect"
+	"time"
+	"udi/config"
+	"udi/database"
+	"udi/handlers/handler"
+)
+
+type CarHandler struct {
+	handler.CommonHandler
+	dbh *database.DatabaseHandle
+}
+
+/*
+{
+  "status": "Ok",
+  "timestamp": "2025-12-15T13:11:15.648243",
+  "voltageL1": 228.68,
+  "voltageL2": 227.69,
+  "voltageL3": 228.53,
+  "currentL1": 0.0,
+  "currentL2": 0.0,
+  "currentL3": 0.0,
+  "powerL1": 0.0,
+  "powerL2": 0.0,
+  "powerL3": 0.0,
+  "totalImportEnergy": 0.0,
+  "totalExportEnergy": 0.0,
+  "cnt": 399300}
+*/
+
+type CarValue struct {
+  Status            string  `unit:""   json:"status"`
+  Timestamp         string  `unit:""   json:"timestamp"`
+  VoltageL1         float32 `unit:"V"  json:"voltageL1"`
+  VoltageL2         float32 `unit:"V"  json:"voltageL2"`
+  VoltageL3         float32 `unit:"V"  json:"voltageL3"`
+  CurrentL1         float32 `unit:"A"  json:"currentL1"`
+  CurrentL2         float32 `unit:"A"  json:"currentL2"`
+  CurrentL3         float32 `unit:"A"  json:"currentL3"`
+  PowerL1           float32 `unit:"W"  json:"powerL1"`
+  PowerL2           float32 `unit:"W"  json:"powerL2"`
+  PowerL3           float32 `unit:"W"  json:"powerL3"`
+  TotalImportEnergy float32 `unit:"Wh" json:"totalImportEnergy"`
+  TotalExportEnergy float32 `unit:"Wh" json:"totalExportEnergy"`
+  Cnt               int     `unit:""   json:"cnt"`
+}
+
+func New(id string, config config.HandlerConfigT) handler.Handler {
+	t := &CarHandler{}
+	t.Id = id
+	t.dbh = database.NewDatabaseHandle()
+	log.Printf("Handler Car %d initialized", id)
+	return t
+}
+
+func (self *CarHandler) Handle(message handler.MessageT) {
+	//log.Printf("Handler Car %d processing %s -> %s", self.id, message.Topic, message.Payload)
+
+	var carValue CarValue
+	err := json.Unmarshal([]byte(message.Payload), &carValue)
+	if err != nil {
+		self.Lost("Unable to parse payload into carValue struct", err, message)
+		return
+	}
+
+	variables := make(map[string]database.VariableType)
+	carValueStructValue := reflect.ValueOf(carValue)
+	for i := 0; i < carValueStructValue.NumField(); i++ {
+		field := carValueStructValue.Type().Field(i)
+		fieldValue := carValueStructValue.Field(i)
+		v := database.VariableType{
+			Label:    "",
+			Variable: field.Name,
+			Unit:     field.Tag.Get("unit"),
+			Value:    fieldValue.Interface(),
+		}
+		variables[field.Name] = v
+	}
+
+	measurement := database.Measurement{
+		Time:        time.Now(),
+		Application: "Car",
+		Device:      "Powermeter",
+		Values:      variables,
+	}
+
+	self.dbh.StoreMeasurement(&measurement)
+	self.S()
+}

src/udi/handlers/mbgw3/mbgw3.go

@@ -74,12 +74,22 @@ func (self *Mbgw3Handler) Handle(message handler.MessageT) {
 
   measurement.Values = make(map[string]database.VariableType)
   unitMap := map[string]string { "Energy": "Wh", "Power": "W", "Voltage": "V", "Current": "A", "Volume": "m3" }
+  keyCount := make(map[string]int)
+  
   for k, v := range observation.Values {
     unit, exists := unitMap[k]
     if ! exists {
       unit = "Unmapped Unit"
     }
-    measurement.Values[k] = database.VariableType {
+    
+    // Check if key already exists and create unique key if needed
+    keyCount[k]++
+    uniqueKey := k
+    if keyCount[k] > 1 {
+      uniqueKey = k + strconv.Itoa(keyCount[k])
+    }
+    
+    measurement.Values[uniqueKey] = database.VariableType {
       Label: "",
       Variable: k,
       Unit: unit,