ogn-python/app/model/aircraft_beacon.py

from sqlalchemy.sql import func
from app import db

from .beacon import Beacon
from .aircraft_type import AircraftType


class AircraftBeacon(Beacon):
    __tablename__ = "aircraft_beacons"

    # Flarm specific data
    address_type = db.Column(db.SmallInteger)
    aircraft_type = db.Column(db.Enum(AircraftType), nullable=False, default=AircraftType.UNKNOWN)
    stealth = db.Column(db.Boolean)
    address = db.Column(db.String)
    climb_rate = db.Column(db.Float(precision=2))
    turn_rate = db.Column(db.Float(precision=2))
    signal_quality = db.Column(db.Float(precision=2))
    error_count = db.Column(db.SmallInteger)
    frequency_offset = db.Column(db.Float(precision=2))
    gps_quality_horizontal = db.Column(db.SmallInteger)
    gps_quality_vertical = db.Column(db.SmallInteger)
    software_version = db.Column(db.Float(precision=2))
    hardware_version = db.Column(db.SmallInteger)
    real_address = db.Column(db.String(6))
    signal_power = db.Column(db.Float(precision=2))
    proximity = None

    # Calculated values
    distance = db.Column(db.Float(precision=2))
    radial = db.Column(db.SmallInteger)
    quality = db.Column(db.Float(precision=2))  # signal quality normalized to 10km
    location_mgrs = db.Column(db.String(15))    # full mgrs (15 chars)
    location_mgrs_short = db.Column(db.String(9))   # reduced mgrs (9 chars), e.g. used for melissas range tool
    agl = db.Column(db.Float(precision=2))

    def __repr__(self):
        return "<AircraftBeacon %s: %s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s>" % (
            self.address_type,
            self.aircraft_type,
            self.stealth,
            self.address,
            self.climb_rate,
            self.turn_rate,
            self.signal_quality,
            self.error_count,
            self.frequency_offset,
            self.gps_quality_horizontal,
            self.gps_quality_vertical,
            self.software_version,
            self.hardware_version,
            self.real_address,
            self.signal_power,
            self.distance,
            self.radial,
            self.quality,
            self.location_mgrs,
            self.location_mgrs_short,
            self.agl,
        )