update pmslive and tcpclient, add support for AVR.

README.rst

@@ -66,13 +66,20 @@ To install latest development version (dev-2.0) from the GitHub:
 
 
 
-Live view traffic
+Live view traffic (pmslive)
 ----------------------------------------------------
-Supports Mode-S Beast raw stream
+Supports **Mode-S Beast** and **AVR** raw stream
 
 ::
 
-  pmslive --server URL/IP --port PORT --lat0 RECEIVER_LAT --lon0 RECEIVER_LON
+  pmslive --server [server_address] --port [tcp_port] --rawtype [beast_or_avr] --latlon [lat] [lon]
+
+  Arguments:
+    -h, --help         show this help message and exit
+    --server SERVER    server address or IP
+    --port PORT        raw data port
+    --rawtype RAWTYPE  beast or avr
+    --latlon LAT LON   receiver position
 
 
 

pyModeS/extra/tcpclient.py

@@ -2,6 +2,7 @@
 Stream beast raw data from a TCP server, convert to mode-s messages
 '''
 from __future__ import print_function, division
+import os
 import sys
 import socket
 import time
@@ -13,12 +14,15 @@ else:
     PY_VERSION = 2
 
 class BaseClient(Thread):
-    def __init__(self, host, port):
+    def __init__(self, host, port, rawtype):
         Thread.__init__(self)
         self.host = host
         self.port = port
         self.buffer = []
-
+        self.rawtype = rawtype
+        if self.rawtype not in ['avr', 'beast']:
+            print("rawtype must be either avr or beast")
+            os._exit(1)
 
     def connect(self):
         while True:
@@ -33,6 +37,33 @@ class BaseClient(Thread):
                 print("Socket connection error: %s. reconnecting..." % err)
                 time.sleep(3)
 
+
+    def read_avr_buffer(self):
+        # -- testing --
+        # for b in self.buffer:
+        #     print(chr(b), b)
+
+        # Append message with 0-9,A-F,a-f, until stop sign
+
+        messages = []
+
+        msg_stop = False
+        for b in self.buffer:
+            if b == 59:
+                msg_stop = True
+                ts = time.time()
+                messages.append([self.current_msg, ts])
+            if b == 42:
+                msg_stop = False
+                self.current_msg = ''
+
+            if (not msg_stop) and (48<=b<=57 or 65<=b<=70 or 97<=b<=102):
+                self.current_msg = self.current_msg + chr(b)
+
+        self.buffer = []
+
+        return messages
+
     def read_beast_buffer(self):
         '''
         <esc> "1" : 6 byte MLAT timestamp, 1 byte signal level,
@@ -91,6 +122,8 @@ class BaseClient(Thread):
         # extract messages
         messages = []
         for mm in messages_mlat:
+            ts = time.time()
+
             msgtype = mm[0]
             # print(''.join('%02X' % i for i in mm))
 
@@ -108,11 +141,10 @@ class BaseClient(Thread):
                 # incomplete message
                 continue
 
-            ts = time.time()
-
             messages.append([msg, ts])
         return messages
 
+
     def handle_messages(self, messages):
         """re-implement this method to handle the messages"""
         for msg, t in messages:
@@ -136,7 +168,10 @@ class BaseClient(Thread):
                 #     continue
                 # -- Removed!! Cause delay in low data rate scenario --
 
-                messages = self.read_beast_buffer()
+                if self.rawtype == 'beast':
+                    messages = self.read_beast_buffer()
+                elif self.rawtype == 'avr':
+                    messages = self.read_avr_buffer()
 
                 if not messages:
                     continue

pyModeS/streamer/pmslive

@@ -7,7 +7,7 @@ import argparse
 import curses
 from threading import Lock
 import pyModeS as pms
-from pyModeS.extra.beastclient import BaseClient
+from pyModeS.extra.tcpclient import BaseClient
 from pyModeS.streamer.stream import Stream
 from pyModeS.streamer.screen import Screen
 
@@ -19,19 +19,21 @@ COMMB_TS = []
 
 parser = argparse.ArgumentParser()
 parser.add_argument('--server', help='server address or IP', required=True)
-parser.add_argument('--port', help='Raw beast port', required=True)
-parser.add_argument('--lat0', help='Latitude of receiver', required=True)
-parser.add_argument('--lon0', help='Longitude of receiver', required=True)
+parser.add_argument('--port', help='raw data port', required=True)
+parser.add_argument('--rawtype', help='beast or avr', required=True)
+parser.add_argument('--latlon', help='receiver position', nargs=2, metavar=('LAT', 'LON'), required=True)
 args = parser.parse_args()
 
 SERVER = args.server
 PORT = int(args.port)
-LAT0 = float(args.lat0)     # 51.9899 for TU Delft
-LON0 = float(args.lon0)     # 4.3754
+RAWTYPE = args.rawtype
+LAT0 = float(args.latlon[0])
+LON0 = float(args.latlon[1])
+
 
 class ModesClient(BaseClient):
-    def __init__(self, host, port):
-        super(ModesClient, self).__init__(host, port)
+    def __init__(self, host, port, rawtype):
+        super(ModesClient, self).__init__(host, port, rawtype)
 
     def handle_messages(self, messages):
         local_buffer_adsb_msg = []
@@ -66,7 +68,7 @@ class ModesClient(BaseClient):
 # redirect all stdout to null, avoiding messing up with the screen
 sys.stdout = open(os.devnull, 'w')
 
-client = ModesClient(host=SERVER, port=PORT)
+client = ModesClient(host=SERVER, port=PORT, rawtype=RAWTYPE)
 client.daemon = True
 client.start()