feat: Add VHF DSC Channel 70 monitoring and decoding

- Implement DSC message decoding (Distress, Urgency, Safety, Routine)

- Add MMSI country identification via MID lookup

- Integrate position extraction and map markers for distress alerts

- Implement device conflict detection to prevent SDR collisions with AIS

- Add permanent storage for critical alerts and visual UI overlays
This commit is contained in:
Marc
2026-01-25 04:07:14 -06:00
committed by Smittix
parent 3b238c3c8f
commit b4d3e65a3d
12 changed files with 2781 additions and 5 deletions

20
app.py
View File

@@ -37,6 +37,7 @@ from utils.constants import (
MAX_WIFI_NETWORK_AGE_SECONDS,
MAX_BT_DEVICE_AGE_SECONDS,
MAX_VESSEL_AGE_SECONDS,
MAX_DSC_MESSAGE_AGE_SECONDS,
QUEUE_MAX_SIZE,
)
import logging
@@ -145,6 +146,12 @@ ais_process = None
ais_queue = queue.Queue(maxsize=QUEUE_MAX_SIZE)
ais_lock = threading.Lock()
# DSC (Digital Selective Calling)
dsc_process = None
dsc_rtl_process = None
dsc_queue = queue.Queue(maxsize=QUEUE_MAX_SIZE)
dsc_lock = threading.Lock()
# TSCM (Technical Surveillance Countermeasures)
tscm_queue = queue.Queue(maxsize=QUEUE_MAX_SIZE)
tscm_lock = threading.Lock()
@@ -175,6 +182,9 @@ adsb_aircraft = DataStore(max_age_seconds=MAX_AIRCRAFT_AGE_SECONDS, name='adsb_a
# Vessel (AIS) state - using DataStore for automatic cleanup
ais_vessels = DataStore(max_age_seconds=MAX_VESSEL_AGE_SECONDS, name='ais_vessels')
# DSC (Digital Selective Calling) state - using DataStore for automatic cleanup
dsc_messages = DataStore(max_age_seconds=MAX_DSC_MESSAGE_AGE_SECONDS, name='dsc_messages')
# Satellite state
satellite_passes = [] # Predicted satellite passes (not auto-cleaned, calculated)
@@ -185,6 +195,7 @@ cleanup_manager.register(bt_devices)
cleanup_manager.register(bt_beacons)
cleanup_manager.register(adsb_aircraft)
cleanup_manager.register(ais_vessels)
cleanup_manager.register(dsc_messages)
# ============================================
@@ -516,6 +527,7 @@ def health_check() -> Response:
'aprs': aprs_process is not None and (aprs_process.poll() is None if aprs_process else False),
'wifi': wifi_process is not None and (wifi_process.poll() is None if wifi_process else False),
'bluetooth': bt_process is not None and (bt_process.poll() is None if bt_process else False),
'dsc': dsc_process is not None and (dsc_process.poll() is None if dsc_process else False),
},
'data': {
'aircraft_count': len(adsb_aircraft),
@@ -523,6 +535,7 @@ def health_check() -> Response:
'wifi_networks_count': len(wifi_networks),
'wifi_clients_count': len(wifi_clients),
'bt_devices_count': len(bt_devices),
'dsc_messages_count': len(dsc_messages),
}
})
@@ -531,7 +544,7 @@ def health_check() -> Response:
def kill_all() -> Response:
"""Kill all decoder and WiFi processes."""
global current_process, sensor_process, wifi_process, adsb_process, ais_process, acars_process
global aprs_process, aprs_rtl_process
global aprs_process, aprs_rtl_process, dsc_process, dsc_rtl_process
# Import adsb and ais modules to reset their state
from routes import adsb as adsb_module
@@ -580,6 +593,11 @@ def kill_all() -> Response:
aprs_process = None
aprs_rtl_process = None
# Reset DSC state
with dsc_lock:
dsc_process = None
dsc_rtl_process = None
return jsonify({'status': 'killed', 'processes': killed})