how can i decode TYPE AIVDO Message?

[xiluzi]

from pyais import NMEAMessage
a = NMEAMessage.from_string('!AIVDO,1,1,,,B>qc:003wk?8mP=18D3Q3wgTiT;T,0*13')

l try to decode it but failed. But I can decode in https://www.aggsoft.com/ais-decoder.htm
did i make something wrong?

[M0r13n]

Hey,

it seems that there is a bug in the library. Currently it raises an error if no Channel is given. Which is actually correct for AIVDM messages. But it is not correct for AIVDO messages.

I fill fix it.

Kind regards,
Leon

[M0r13n]

The bug is fixed in the newest version of pyais (1.6.1).

Update with:

pip install -U pyais

[tangchenggang]

the print message just like this:MessageType1(msg_type=1, repeat=0, mmsi='247061100', status=<NavigationStatus.UnderWayUsingEngine: 0>, turn=0, speed=1.2, accuracy=0, lon=23.268065, lat=37.900988, course=273.0, heading=258, second=48, maneuver=<ManeuverIndicator.NotAvailable: 0>, spare=0, raim=False, radio=34527)
how could i output the message in csv format?

[M0r13n]

Hey @tangchenggang

I added an example for you:

"""
The following example shows how you could write the decoded data to CSV.
You first need to decode the data into a dictionary and then write the
dictionary to a CSV file using a `DictWriter`.
"""
import csv

from pyais import decode

ais_msg = "!AIVDO,1,1,,,B>qc:003wk?8mP=18D3Q3wgTiT;T,0*13"
data_dict = decode(ais_msg).asdict()

with open('decoded_message.csv', 'w') as f:
    w = csv.DictWriter(f, data_dict.keys())
    w.writeheader()
    w.writerow(data_dict)