aislib

A Python library for decoding and encoding:

• AIS type 1/2/3 messages
• AIS type 5 messages
• AIS type 21 messages
• AIS type 24 part A and Part B messages (main craft case )

As there exist reliable and comprehensive python decoders, the emphasis is on encoding.

The bitstring Python library is a required dependency. You can get it here: https://pypi.python.org/pypi/bitstring

TODO

• Still need to implement the communication state bits. These bits are divided into three sections:
  • bits 1-2 is the "sync state"
  • bits 3-5 is the "slot time-out"
  • bits 6-19 is the "sub message"