230 lines
7.9 KiB
Python
230 lines
7.9 KiB
Python
#
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# Copyright 2010, 2012 Nick Foster
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#
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# This file is part of gr-air-modes
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#
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# gr-air-modes is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3, or (at your option)
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# any later version.
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#
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# gr-air-modes is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with gr-air-modes; see the file COPYING. If not, write to
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# the Free Software Foundation, Inc., 51 Franklin Street,
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# Boston, MA 02110-1301, USA.
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#
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import time, os, sys
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from string import split, join
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import air_modes
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from air_modes.exceptions import *
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import math
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class output_print(air_modes.parse):
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def __init__(self, mypos):
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air_modes.parse.__init__(self, mypos)
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def parse(self, message):
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[data, ecc, reference, timestamp] = message.split()
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ecc = long(ecc, 16)
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reference = float(reference)
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timestamp = float(timestamp)
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if reference == 0.0:
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refdb = -150.0
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else:
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refdb = 20.0*math.log10(reference)
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output = "(%.0f %.10f) " % (refdb, timestamp);
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try:
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data = air_modes.modes_reply(long(data, 16))
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msgtype = data["df"]
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if msgtype == 0:
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output += self.print0(data, ecc)
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elif msgtype == 4:
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output += self.print4(data, ecc)
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elif msgtype == 5:
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output += self.print5(data, ecc)
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elif msgtype == 11:
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output += self.print11(data, ecc)
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elif msgtype == 17:
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output += self.print17(data)
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elif msgtype == 20 or msgtype == 21:
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output += self.print20(data, ecc)
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else:
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output += "No handler for message type %i from %x (but it's in modes_parse)" % (msgtype, ecc)
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return output
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except NoHandlerError as e:
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output += "No handler for message type %s from %x" % (e.msgtype, ecc)
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return output
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except MetricAltError:
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pass
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except CPRNoPositionError:
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pass
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def output(self, msg):
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print self.parse(msg)
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def print0(self, shortdata, ecc):
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[vs, cc, sl, ri, altitude] = self.parse0(shortdata)
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retstr = "Type 0 (short A-A surveillance) from %x at %ift" % (ecc, altitude)
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if ri == 0:
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retstr += " (No TCAS)"
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elif ri == 2:
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retstr += " (TCAS resolution inhibited)"
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elif ri == 3:
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retstr += " (Vertical TCAS resolution only)"
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elif ri == 4:
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retstr += " (Full TCAS resolution)"
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elif ri == 9:
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retstr += " (speed <75kt)"
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elif ri > 9:
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retstr += " (speed %i-%ikt)" % (75 * (1 << (ri-10)), 75 * (1 << (ri-9)))
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if vs is True:
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retstr += " (aircraft is on the ground)"
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return retstr
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def print4(self, shortdata, ecc):
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[fs, dr, um, altitude] = self.parse4(shortdata)
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retstr = "Type 4 (short surveillance altitude reply) from %x at %ift" % (ecc, altitude)
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if fs == 1:
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retstr += " (aircraft is on the ground)"
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elif fs == 2:
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retstr += " (AIRBORNE ALERT)"
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elif fs == 3:
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retstr += " (GROUND ALERT)"
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elif fs == 4:
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retstr += " (SPI ALERT)"
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elif fs == 5:
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retstr += " (SPI)"
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return retstr
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def print5(self, shortdata, ecc):
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[fs, dr, um, ident] = self.parse5(shortdata)
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retstr = "Type 5 (short surveillance ident reply) from %x with ident %i" % (ecc, ident)
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if fs == 1:
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retstr += " (aircraft is on the ground)"
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elif fs == 2:
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retstr += " (AIRBORNE ALERT)"
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elif fs == 3:
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retstr += " (GROUND ALERT)"
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elif fs == 4:
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retstr += " (SPI ALERT)"
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elif fs == 5:
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retstr += " (SPI)"
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return retstr
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def print11(self, data, ecc):
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[icao24, interrogator, ca] = self.parse11(data, ecc)
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retstr = "Type 11 (all call reply) from %x in reply to interrogator %i with capability level %i" % (icao24, interrogator, ca+1)
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return retstr
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def print17(self, data):
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icao24 = data["aa"]
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bdsreg = data["me"].get_type()
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retstr = None
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if bdsreg == 0x08:
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(msg, typestring) = self.parseBDS08(data)
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retstr = "Type 17 BDS0,8 (ident) from %x type %s ident %s" % (icao24, typestring, msg)
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elif bdsreg == 0x06:
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[ground_track, decoded_lat, decoded_lon, rnge, bearing] = self.parseBDS06(data)
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retstr = "Type 17 BDS0,6 (surface report) from %x at (%.6f, %.6f) ground track %i" % (icao24, decoded_lat, decoded_lon, ground_track)
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if rnge is not None and bearing is not None:
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retstr += " (%.2f @ %.0f)" % (rnge, bearing)
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elif bdsreg == 0x05:
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[altitude, decoded_lat, decoded_lon, rnge, bearing] = self.parseBDS05(data)
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retstr = "Type 17 BDS0,5 (position report) from %x at (%.6f, %.6f)" % (icao24, decoded_lat, decoded_lon)
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if rnge is not None and bearing is not None:
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retstr += " (" + "%.2f" % rnge + " @ " + "%.0f" % bearing + ")"
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retstr += " at " + str(altitude) + "ft"
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elif bdsreg == 0x09:
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subtype = data["bds09"].get_type()
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if subtype == 0:
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[velocity, heading, vert_spd, turnrate] = self.parseBDS09_0(data)
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retstr = "Type 17 BDS0,9-%i (track report) from %x with velocity %.0fkt heading %.0f VS %.0f turn rate %.0f" \
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% (subtype, icao24, velocity, heading, vert_spd, turnrate)
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elif subtype == 1:
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[velocity, heading, vert_spd] = self.parseBDS09_1(data)
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retstr = "Type 17 BDS0,9-%i (track report) from %x with velocity %.0fkt heading %.0f VS %.0f" % (subtype, icao24, velocity, heading, vert_spd)
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elif subtype == 3:
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[mag_hdg, vel_src, vel, vert_spd, geo_diff] = self.parseBDS09_3(data)
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retstr = "Type 17 BDS0,9-%i (air course report) from %x with %s %.0fkt magnetic heading %.0f VS %.0f geo. diff. from baro. alt. %.0fft" \
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% (subtype, icao24, vel_src, vel, mag_hdg, vert_spd, geo_diff)
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else:
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retstr = "Type 17 BDS0,9-%i from %x not implemented" % (subtype, icao24)
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elif bdsreg == 0x62:
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emerg_str = self.parseBDS62(data)
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retstr = "Type 17 BDS6,2 (emergency) from %x type %s" % (icao24, emerg_str)
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else:
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retstr = "Type 17 with FTC=%i from %x not implemented" % (data["ftc"], icao24)
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return retstr
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def print20(self, data, ecc):
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msgtype = data["df"]
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if(msgtype == 20):
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[fs, dr, um, alt] = self.parse4(data)
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else:
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[fs, dr, um, ident] = self.parse5(data)
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bds1 = data["bds1"]
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bds2 = data["bds2"]
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if bds2 != 0:
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retstr = "No handler for BDS2 == %i from %x" % (bds2, ecc)
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elif bds1 == 0:
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retstr = "No handler for BDS1 == 0 from %x" % ecc
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elif bds1 == 1:
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retstr = "Type 20 link capability report from %x: ACS: 0x%x, BCS: 0x%x, ECS: 0x%x, continues %i" \
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% (ecc, data["acs"], data["bcs"], data["ecs"], data["cfs"])
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elif bds1 == 2:
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retstr = "Type 20 identification from %x with text %s" % (ecc, self.parseMB_id(data))
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elif bds2 == 3:
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retstr = "Type 20 TCAS report from %x: " % ecc
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tti = data["tti"]
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if tti == 1:
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(resolutions, complements, rat, mte, threat_id) = self.parseMB_TCAS_threatid(data)
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retstr += "threat ID: %x advised: %s complement: %s" % (threat_id, resolutions, complements)
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elif tti == 2:
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(resolutions, complements, rat, mte, threat_alt, threat_range, threat_bearing) = self.parseMB_TCAS_threatloc(data)
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retstr += "range: %i bearing: %i alt: %i advised: %s complement: %s" % (threat_range, threat_bearing, threat_alt, resolutions, complements)
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else:
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retstr += " (no handler for TTI=%i)" % tti
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if mte == 1:
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retstr += " (multiple threats)"
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if rat == 1:
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retstr += " (resolved)"
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else:
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retstr = "No handler for BDS1 == %i from %x" % (bds1, ecc)
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# if(msgtype == 20):
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# retstr += " at %ift" % altitude
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# else:
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# retstr += " ident %x" % ident
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return retstr
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