GPS-Code von NMEA0183 getrennt, NMEA0183 weiterprogrammiert

obp60v.py

@@ -77,7 +77,7 @@ Version  Datum       Änderung(en)                                           von
 -------- ----------- ------------------------------------------------------ ----
 0.1      2024-10-31  Entwicklung begonnen                                   tho
 0.2      2024-12-24  Veröffentlichung als Git-Repository                    tho
-
+0.3      2025        WIP                                                    tho 
 
 """
 
@@ -195,13 +195,56 @@ def rxd_n2k(device):
     bus.shutdown()
 
 def rxd_0183(devname):
-    # Prüfe ob Port vorhanden ist und sich öffnen läßt
+    # Prüfe ob NMEA0183-Port vorhanden ist und sich öffnen läßt
     try:
         ser = serial.Serial(devname, 115200, timeout=3)
     except serial.SerialException as e:
         print("NMEA0183 serial port not available")
         return
     setthreadtitle("0183listener")
+    while not shutdown:
+        try:
+            raw = ser.readline().decode('ascii')
+            msg = pynmea2.parse(raw)
+        except pynmea2.nmea.ParseError:
+            print(f"NMEA0183: Parse-Error: {raw}")
+            continue
+        # sentence_type kann fehlen 
+        try:
+            stype = msg.sentence_type
+        except:
+            print(f"NMEA0183: Sentence type missing: {raw}")
+            continue
+        if stype == 'GLL':
+            boatdata.setValue("LAT", msg.latitude)
+            boatdata.setValue("LON", msg.longitude)
+        elif stype == 'VTG':
+            boatdata.setValue("COG", int(msg.true_track))
+            #TODO klären was für Typen hier ankommen können
+            # bytearray, str, decimal.Decimal?
+            sog = float(msg.spd_over_grnd_kts)
+            #str von OpenCPN: sog = float(msg.spd_over_grnd_kts[:-1])
+            boatdata.setValue("SOG", sog)
+        elif stype == 'VHW':
+            boatdata.setValue("STW", float(msg.water_speed_knots))
+        elif stype == 'WPL':
+            # Wegepunkt
+            print(msg.fields)
+        elif stype == 'RTE':
+            # Route
+            print(msg.fields)
+        else:
+            print(msg)
+    ser.close()
+
+def rxd_gps(devname, devspeed):
+    # Prüfe ob GPS-Port vorhanden ist und sich öffnen läßt
+    try:
+        ser = serial.Serial(devname, devspeed, timeout=3)
+    except serial.SerialException as e:
+        print("GPS serial port not available")
+        return
+    setthreadtitle("GPSlistener")
     while not shutdown:
         try:
             msg = pynmea2.parse(ser.readline().decode('ascii'))
@@ -210,19 +253,9 @@ def rxd_0183(devname):
         if msg.sentence_type == 'GLL':
             boatdata.setValue("LAT", msg.latitude)
             boatdata.setValue("LON", msg.longitude)
-        elif msg.sentence_type == 'VTG':
-            boatdata.setValue("COG", int(msg.true_track))
-            boatdata.setValue("SOG", float(msg.spd_over_grnd_kts[:-1]))
-        elif msg.sentence_type == 'VHW':
-            boatdata.setValue("STW", float(msg.water_speed_knots))
-        elif msg.sentence_type == 'WPL':
-            # Wegepunkt
-            print(msg.fields)
-        elif msg.sentence_type == 'RTE':
-            # Route
-            print(msg.fields)
         else:
             print(msg)
+            print(msg.fields)
     ser.close()
 
 def datareader(histpath, history):
@@ -274,10 +307,6 @@ def datareader(histpath, history):
             for k, v in history.series.items():
                 if n % k == 0:
                     v.add(pval)
-        # Lokales GPS abfragen
-        # TODO
-        if cfg['gps']:
-            pass
         n += 1
 
     for s in history.series.values():
@@ -663,6 +692,9 @@ if __name__ == "__main__":
     if cfg['nmea0183']:
         t_rxd_0183 = threading.Thread(target=rxd_0183, args=(cfg['0183_port'],))
         t_rxd_0183.start()
+    if cfg['gps']:
+        t_rxd_gps = threading.Thread(target=rxd_gps, args=(cfg['gps_port'],))
+        t_rxd_gps.start()
     if not cfg['simulation']:
         t_data = threading.Thread(target=datareader, args=(cfg['histpath'], history))
         t_data.start()
@@ -674,6 +706,8 @@ if __name__ == "__main__":
         t_rxd_n2k.join()
     if cfg['nmea0183']:
         t_rxd_0183.join()
+    if cfg['gps']:
+        t_rxd_gps.join()
     if not cfg['simulation']:
         t_data.join()
     print("Another fine product of the Sirius Cybernetics Corporation.")