Skip to content

Latest commit

 

History

History
172 lines (133 loc) · 7.19 KB

Readme.md

File metadata and controls

172 lines (133 loc) · 7.19 KB
Raw

dump1090 stream parser

This software takes a dump1090 stream of ADS-B messages and plops them into a sqlite database with a timestamp.

Usage

You'll need a dump1090 instance running somewhere accessable on your network

If dump1090 is runing on your current machine running

python dump1090-stream-parser.py

will create and start populating a sqlite database named adsb_messages.db in your current directory

Stop the stream by hitting control + c. This will write any remaining uncommitted lines to the database and exit.

Complete usage and options

usage: dump1090-stream-parser.py [-h] [-l LOCATION] [-p PORT] [-d DATABASE]
                                 [--buffer-size BUFFER_SIZE]
                                 [--batch-size BATCH_SIZE]
                                 [--connect-attempt-limit CONNECT_ATTEMPT_LIMIT]
                                 [--connect-attempt-delay CONNECT_ATTEMPT_DELAY]

A program to process dump1090 messages then insert them into a database

optional arguments:
  -h, --help            show this help message and exit
  -l LOCATION, --location LOCATION
                        This is the network location of your dump1090
                        broadcast. Defaults to localhost
  -p PORT, --port PORT  The port broadcasting in SBS-1 BaseStation format.
                        Defaults to 30003
  -d DATABASE, --database DATABASE
                        The location of a database file to use or create.
                        Defaults to adsb_messages.db
  --buffer-size BUFFER_SIZE
                        An integer of the number of bytes to read at a time
                        from the stream. Defaults to 100
  --batch-size BATCH_SIZE
                        An integer of the number of rows to write to the
                        database at a time. A lower number makes it more
                        likely that your database will be locked when you try
                        to query it. Defaults to 1
  --connect-attempt-limit CONNECT_ATTEMPT_LIMIT
                        An integer of the number of times to try (and fail) to
                        connect to the dump1090 broadcast before qutting.
                        Defaults to 10
  --connect-attempt-delay CONNECT_ATTEMPT_DELAY
                        The number of seconds to wait after a failed
                        connection attempt before trying again. Defaults to
                        5.0

Examples

Connecting to dump1090 instance running on a raspberry pi on your local network

python dump1090-stream-parser.py -l raspberrypi.local

Using a database in a different directory

python dump1090-stream-parser.py -d /path/to/database.db

Write every record to the database immediately instead of batching insertions

python dump1090-stream-parser.py --batch-size 1

Read larger chunks from the stream

python dump1090-stream-parser.py --buffer-size 1024

Connect to the local machine via ip address and save records in 20 line batches to todays_squitters.db

python dump1090-stream-parser.py -l 127.0.0.1 -d todays_squitters.db --batch-size 20

Acessing the data

The data is stored in a table called squitters

You can start sqlite by running sqlite3 adsb_messages.db in your terminal.

Display the most recent 5 entries sqlite> select * from squitters limit 5

MSG|8|||AA95AC||||||||||||||||||2015-12-30 18:40:18.018627
MSG|5|||AA95AC|||||||2225|||||||||||2015-12-30 18:40:18.020241
MSG|5|||AC871B|||||||16350|||||||||||2015-12-30 18:40:18.216787
MSG|3|||AB5E9B|||||||36275|||34.00996|-118.42208|||0|0|0|0|2015-12-30 18:40:18.219800
MSG|3|||AA95AC|||||||2225|||34.07048|-118.36989|||0|0|0|0|2015-12-30 18:40:18.284075

Aircraft often only broadcast some of its flight data in each squitter. Convenience views are provided to make combining broadcasts from the same aircaft easier.

Callsigns view

The view callsigns provides a per-day mapping of callsigns to the hex_ident that should be present in every message.

To help diambiguate airline flights made by different planes with the same flight number this view provides first_seen and last_seen columns to help isolate which times particular callsigns were associated with particular hex_idents.

For example, say you want to know when FedEx flights were seen in your area:

sqlite> select callsign, hex_ident, date_seen, first_seen, last_seen 
        from callsigns 
        where callsign like 'FDX%' 
        limit 5;

FDX1167 |A8F63B|2018-10-16|2018-10-16T12:03:50.762491|2018-10-16T12:08:02.342313
FDX1167 |AA01E7|2018-10-17|2018-10-17T11:23:47.560089|2018-10-17T11:26:42.926003
FDX12   |AC1E56|2018-10-16|2018-10-16T05:46:00.927919|2018-10-16T05:48:25.557328
FDX12   |AC5FD6|2018-10-17|2018-10-17T06:38:02.982087|2018-10-17T06:41:12.678365
FDX1213 |A9C1C5|2018-10-17|2018-10-17T02:26:48.864018|2018-10-17T02:29:33.611975

Locations view

The view locations provides a list of locations (latitude, longitude and altitude) mapped to the hex_ident and time the entry was parsed. Not every hex_ident is guaranteed to be associated with a callsign, but most will be.

For example, If you wanted to track where the FedEx flight FDX1167 went on October 16th you'd use its hex_ident (A8F63B) from the callsigns view to isolate it:

sqlite> select hex_ident, parsed_time, lon, lat, altitude 
        from locations 
        where hex_ident = 'A8F63B' 
        limit 10;

A8F63B|2018-10-16T12:03:44.667583|-121.84311|37.60638|4650
A8F63B|2018-10-16T12:03:49.321162|-121.84871|37.60648|4575
A8F63B|2018-10-16T12:03:52.465988|-121.8524|37.60652|4525
A8F63B|2018-10-16T12:03:53.579999|-121.85375|37.60657|4525
A8F63B|2018-10-16T12:03:54.038653|-121.85427|37.60657|4500
A8F63B|2018-10-16T12:03:57.774146|-121.85866|37.60666|4475
A8F63B|2018-10-16T12:04:16.189721|-121.88023|37.60695|4350
A8F63B|2018-10-16T12:04:16.779088|-121.88089|37.60695|4350
A8F63B|2018-10-16T12:04:17.892429|-121.88221|37.60693|4350
A8F63B|2018-10-16T12:04:18.352539|-121.88279|37.60693|4350

Flights view

The view flights joins the callsigns and locations views allowing you to view flightpaths by flight number, rather than hex_ident.

sqlite> select callsign, parsed_time, lon, lat, altitude 
        from flights 
        where callsign like 'FDX1345%' 
        limit 10;

FDX1345 |2018-10-17T02:03:49.862699|-122.26971|37.68855|4575
FDX1345 |2018-10-17T02:03:50.846821|-122.26846|37.6892|4625
FDX1345 |2018-10-17T02:03:53.466993|-122.26523|37.69088|4800
FDX1345 |2018-10-17T02:03:55.105746|-122.26316|37.69199|4925
FDX1345 |2018-10-17T02:03:55.499516|-122.26264|37.69221|4950
FDX1345 |2018-10-17T02:03:56.416630|-122.26153|37.69281|5025
FDX1345 |2018-10-17T02:03:58.119922|-122.25942|37.69391|5150
FDX1345 |2018-10-17T02:03:58.578940|-122.25884|37.69418|5200
FDX1345 |2018-10-17T02:04:02.052030|-122.25449|37.69647|5475
FDX1345 |2018-10-17T02:04:04.739817|-122.25114|37.69819|5675

It will only show locations for a flight catpured between the 10 minutes before first_seen and 10 minutes after last_seen timestamps in the callsigns view. This helps avoid complications caused when a hex_ident is associated with more than one callsign.