80 lines
2.4 KiB
Python
80 lines
2.4 KiB
Python
import time
|
|
from datetime import datetime
|
|
|
|
import geopy
|
|
import geopy.distance
|
|
from circuitbreaker import circuit
|
|
from daf import DAF
|
|
|
|
# Lat, Long
|
|
STARTING_POINT = geopy.Point(48.853, 2.349)
|
|
# in km/h
|
|
STARTING_VELOCITY = 130
|
|
# Driving direction in degrees: 0=N, 90=E, 180=S, 270=W
|
|
BEARING = 90
|
|
|
|
|
|
class Vehicle:
|
|
vin: str
|
|
gps_location: geopy.Point
|
|
velocity: float
|
|
timestamp: datetime
|
|
|
|
def __init__(self,
|
|
vin: str,
|
|
starting_point: geopy.Point = STARTING_POINT,
|
|
starting_velocity: float = STARTING_VELOCITY):
|
|
self.vin = vin
|
|
self.gps_location = starting_point
|
|
self.velocity = starting_velocity
|
|
|
|
def get_daf(self, invoke_nce=False):
|
|
return DAF(vehicle_identification_number=self.vin,
|
|
gps_location=self.gps_location,
|
|
velocity=self.velocity,
|
|
timestamp=self.timestamp,
|
|
near_crash_event=invoke_nce
|
|
)
|
|
|
|
def update_pos(self):
|
|
"""
|
|
Update self.gps_location with given speed in km/h and the driven time in seconds
|
|
:param velocity: in km/h
|
|
:param time: in seconds
|
|
:param bearing: direction in degrees: 0=N, 90=E, 180=S, 270=W
|
|
"""
|
|
# Define starting point.
|
|
start = self.gps_location
|
|
|
|
# Get old and updated timestamps
|
|
old_timestamp = self.timestamp
|
|
updated_timestamp = datetime.now()
|
|
self.timestamp = updated_timestamp
|
|
|
|
# get driving time between timestamps (in seconds)
|
|
driving_time = (old_timestamp - updated_timestamp).total_seconds()
|
|
|
|
# reached distance in kilometers: convert km/h to km/s and multiply by driving time
|
|
kilometers = self.velocity / 3600 * driving_time
|
|
|
|
# Define a general distance object, initialized with a distance of 1 km.
|
|
d = geopy.distance.distance(kilometers=kilometers)
|
|
|
|
# Use the `destination` method with a bearing of bearing degrees (90 is east)
|
|
# in order to go from point `start` to kilometers km bearing.
|
|
self.gps_location = d.destination(point=start, bearing=BEARING)
|
|
return self.gps_location
|
|
|
|
@circuit(failure_threshold=10, expected_exception=ConnectionError)
|
|
def external_call(self):
|
|
...
|
|
|
|
def start_driving(self):
|
|
self.timestamp = datetime.now()
|
|
|
|
|
|
if __name__ == "__main__":
|
|
v1 = Vehicle(vin='SB164ABN1PE082986')
|
|
v1.start_driving()
|
|
|