Knx interfacer

conf/interfacer_examples/KNX/knx.emonhub.conf

@@ -0,0 +1,37 @@
+[[KNX]]
+    Type = EmonHubKNXInterfacer
+    [[[init_settings]]]
+        gateway_ip = 192.168.254.1
+        port = 3671
+    [[[runtimesettings]]]
+        pubchannels = ToEmonCMS,
+        read_interval = 5
+        validate_checksum = False
+        nodeid=1
+        nodename = KNX
+        [[[[meters]]]]
+            [[[[[compteur]]]]]
+                  [[[[[[voltage]]]]]]
+                      group=10/0/1
+                      eis=DPT-14
+                  [[[[[[intensite]]]]]]
+                      group=10/1/1
+                      eis=DPT-14
+                  [[[[[[puissance]]]]]]
+                      group=10/2/1
+                      eis=DPT-14
+                  [[[[[[consommation]]]]]]
+                      group=10/3/1
+                      eis=DPT-12
+                  [[[[[[consommationWh]]]]]]
+                      group=10/5/1
+                      eis=DPT-12
+             [[[[[compteurNew]]]]]
+                  [[[[[[voltage]]]]]]
+                      group=10/0/2
+                      eis=DPT-14
+                  [[[[[[intensite]]]]]]
+                      group=10/1/2
+                      eis=DPT-14
+
+

conf/interfacer_examples/KNX/readme.md

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+### KNX Reader to read value from knx group using a knx Gateway
+
+KNX is a international standard for home automation.
+KNX is based on a bus, where each device can communicate using knx group.
+A Knx group is address using a knx address group notation of the form x/y/z.
+
+To configure this interfacers, you would need:
+
+to fill the global init_settings, mainly:
+
+- **gateway_ip** The ip address of your ip gateway device.
+- **port** The port of the gateway device (3671 is the default).
+- **local_ip** If your server have multiple ip interface, indicate the ip of the interface link to the gateway device.
+
+In runtimeseetings, you will have to list the group you want to read.
+You can make some grouping by indicating a devicename under the meters section
+
+Each device can contains single or many group read section of the form:
+ [[[[[[groupName]]]]]]
+        group=10/0/1
+        eis=DPT-14
+
+- **groupName:** Will indicate the name of the group, indicate what you want, it will be the name of the input in emoncms inputs.
+- **group:** The address of the group
+- **eis:** The KNX type use for this group (please refer to KNX official documentation for the list).
+
+
+```text
+[[KNX]]
+    Type = EmonHubKNXInterfacer
+    [[[init_settings]]]
+        gateway_ip = 192.168.254.1
+        port = 3671
+    [[[runtimesettings]]]
+        pubchannels = ToEmonCMS,
+        read_interval = 5
+        validate_checksum = False
+        nodeid=1
+        nodename = KNX
+        [[[[meters]]]]
+            [[[[[compteur]]]]]
+                  [[[[[[voltage]]]]]]
+                      group=10/0/1
+                      eis=DPT-14
+                  [[[[[[intensite]]]]]]
+                      group=10/1/1
+                      eis=DPT-14
+                  [[[[[[puissance]]]]]]
+                      group=10/2/1
+                      eis=DPT-14
+                  [[[[[[consommation]]]]]]
+                      group=10/3/1
+                      eis=DPT-12
+                  [[[[[[consommationWh]]]]]]
+                      group=10/5/1
+                      eis=DPT-12
+             [[[[[compteurNew]]]]]
+                  [[[[[[voltage]]]]]]
+                      group=10/0/2
+                      eis=DPT-14
+                  [[[[[[intensite]]]]]]
+                      group=10/1/2
+                      eis=DPT-14
+
+
+

src/interfacers/EmonHubKNXInterfacer.py

@@ -0,0 +1,262 @@
+import time
+import json
+import re
+import Cargo
+import serial
+import struct
+import asyncio
+import concurrent.futures
+import threading
+
+from emonhub_interfacer import EmonHubInterfacer
+from xknx import XKNX
+from xknx.io import ConnectionConfig, ConnectionType
+
+from xknx.devices import Light
+from xknx.devices import NumericValue
+from xknx.devices import RawValue
+from xknx.devices import Sensor
+from xknx.dpt import DPTArray
+from xknx.telegram import GroupAddress, Telegram
+from xknx.telegram.apci import GroupValueRead, GroupValueResponse, GroupValueWrite
+from xknx.core import ValueReader
+
+"""
+[[KNX]]
+    Type = EmonHubKNXInterfacer
+    [[[init_settings]]]
+        gateway_ip = 192.168.254.40
+        port = 3691
+        local_ip = 192.168.254.1
+    [[[runtimesettings]]]
+        pubchannels = ToEmonCMS,
+        read_interval = 10
+        validate_checksum = False
+        nodename = KNX
+        [[[[meters]]]]
+            [[[[[compteur]]]]]
+                group=1/1/1
+                eis=DPT-14
+            [[[[[[consommationWh]]]]]]
+                group=10/5/1
+                eis=DPT-12
+"""
+
+"""class EmonHubKNXInterfacer
+
+KNX interfacer
+
+"""
+
+class EmonHubKNXInterfacer(EmonHubInterfacer):
+
+    def __init__(self, name, gateway_ip="127.0.0.1", local_ip="127.0.0.1", port=3671):
+        """Initialize Interfacer
+
+        """
+        # Initialization
+        super(EmonHubKNXInterfacer, self).__init__(name)
+
+        # This line will stop the default values printing to logfile at start-up
+        # self._settings.update(self._defaults)
+
+        # Interfacer specific settings
+        self._KNX_settings = {'read_interval': 10.0,
+                               'nodename':'KNX',
+                               'validate_checksum': True,
+                               'meters':[]}
+
+        self._last_read_time = 0
+
+        try:
+            self.loop = asyncio.get_event_loop()
+
+            task = self.loop.create_task(self.initKnx(gateway_ip, local_ip))
+            self.loop.run_until_complete(task)
+
+            self.cargoList = {}
+
+        except ModuleNotFoundError as err:
+            self._log.error(err)
+            self.ser = False
+
+
+    def action(self):
+        super().action()
+
+
+    async def initKnx(self, gateway_ip, local_ip):
+        connection_config = ConnectionConfig(
+                                        connection_type=ConnectionType.TUNNELING,
+                                        gateway_ip=gateway_ip,
+                                        local_ip = local_ip
+        )
+
+        self._log.info("Connect to KNX Gateway : " + gateway_ip)
+        self.xknx = XKNX(connection_config=connection_config,   device_updated_cb=self.device_updated_cb, daemon_mode=False)
+
+    async def startKnx(self):
+        await self.xknx.start()
+
+
+    #@asyncio.coroutine
+    async def device_updated_cb(self, device):
+        value = device.resolve_state()
+        name = device.name
+        unit = device.unit_of_measurement()
+
+        self._log.debug("Device:" + name + ' <> ' + str(value))
+
+        namePart = name.split("_")
+        meter = namePart[0]
+        key = namePart[1]
+
+        meterObj=self._settings['meters'][meter]
+        dptConf = meterObj[key]
+        if 'divider' in dptConf:
+            divider = dptConf["divider"]
+            if divider != '':
+                value = float(value) / float(divider)
+
+
+
+        result = {}
+        result[key] = [value,unit]
+
+
+        if meter in self.cargoList:
+            c = self.cargoList[meter]
+            self.add_result_to_cargo(c, result)
+        else:
+            cargoNew = Cargo.new_cargo("", False,[], [])
+            cargoNew.nodeid = meter
+            self.cargoList[meter] = cargoNew
+            self.add_result_to_cargo(cargoNew, result)
+
+
+
+    def add_result_to_cargo(self, cargo, result):
+        if result != None:
+
+            for key in result:
+                cargo.names.append(key)
+                cargo.realdata.append(result[key][0])
+        else:
+            self._log.debug("Decoded KNX data: None")
+
+
+    async def setupSensor(self):
+        metters = self._settings['meters']
+
+        self.sensor={}
+        for metter in metters:
+            dpPoint = metters[metter]
+
+            for dpKey in dpPoint:
+                dpConfig = dpPoint[dpKey]
+
+                group = dpConfig["group"]
+                eis = dpConfig["eis"]
+
+                self.sensor[metter+"_"+dpKey] = Sensor(self.xknx, metter + "_" + dpKey, value_type=eis, group_address_state=group, always_callback=True)
+
+
+
+
+    def add(self, cargo):
+        self.buffer.storeItem(f)
+
+
+    async def waitSensor(self):
+        pass
+
+
+    def read(self):
+        """Read data and process
+
+        Return data as a list: [NodeID, val1, val2]
+
+        """
+        interval = int(self._settings['read_interval'])
+        if time.time() - self._last_read_time < interval:
+            return
+
+        self._last_read_time = time.time()
+
+        #self.displayCargo("read")
+        result = self.cargoList;
+        self.cargoList ={};
+
+        return result;
+
+    def start(self):
+        self._log.info("Start KNX interface")
+
+        task = self.loop.create_task(self.setupSensor())
+        self.loop.run_until_complete(task)
+
+        task = self.loop.create_task(self.startKnx())
+        self.loop.run_until_complete(task)
+
+
+        self.updater = self.Updater(self)
+        self.updater.start()
+
+        super().start()
+
+
+    def set(self, **kwargs):
+        for key, setting in self._KNX_settings.items():
+            # Decide which setting value to use
+            if key in kwargs:
+                setting = kwargs[key]
+            else:
+                setting = self._KNX_settings[key]
+
+            if key in self._settings and self._settings[key] == setting:
+                continue
+            elif key == 'read_interval':
+                self._log.info("Setting %s read_interval: %s", self.name, setting)
+                self._settings[key] = float(setting)
+                continue
+            elif key == 'nodename':
+                self._log.info("Setting %s nodename: %s", self.name, setting)
+                self._settings[key] = str(setting)
+                continue
+            elif key == 'validate_checksum':
+                self._log.info("Setting %s validate_checksum: %s", self.name, setting)
+                self._settings[key] = True
+                if setting=='False':
+                    self._settings[key] = False
+                continue
+            elif key == 'meters':
+                self._log.info("Setting %s meters: %s", self.name, json.dumps(setting))
+                self._settings['meters'] = {}
+                for meter in setting:
+                    # default
+                    address = 1
+                    meter_type = "standard"
+                    records = []
+
+                    self._settings['meters'][meter] = setting[meter]
+                continue
+            else:
+                self._log.warning("'%s' is not valid for %s: %s", setting, self.name, key)
+
+        # include kwargs from parent
+        super().set(**kwargs)
+
+
+
+    class Updater(threading.Thread):
+        def __init__(self,  knxIntf):
+            super().__init__()
+            self.loop = asyncio.get_event_loop()
+            self.knxIntf = knxIntf
+
+            pass
+
+        def run(self):
+            while not self.knxIntf.stop:
+                self.loop.run_until_complete(asyncio.sleep(1))
+            pass

src/interfacers/__init__.py

@@ -25,6 +25,7 @@
     "EmonHubRedisInterfacer",
     "EmonHubSDM120Interfacer",
     "EmonHubMBUSInterfacer",
+    "EmonHubKNXInterfacer",
     "EmonHubMinimalModbusInterfacer",
     "EmonHubBleInterfacer",
     "EmonHubGoodWeInterfacer",