live-icomera-position

Live vehicle geolocation, taken from the on-board Icomera WiFi system.

Installation

npm install live-icomera-position

Usage

command-line interface (CLI)

Usage:
    live-icomera-postion
Options:
    --interval <ms>      -i <ms>  How often to fetch the current position.
                                    Default: 3000
    --timeout <ms>       -t <ms>  How long to wait when fetching a position.
                                    Default: 2500
Examples:
	live-icomera-postion -i 5000 >>positions.ndjson

as a library

asStream() returns a readable stream in object mode.

import {pipeline} from 'node:stream/promises'
import {asStream} from 'live-icomera-position'
import ndjson from 'ndjson'

await pipeline(
	asStream(),
	ndjson.stringify(),
	process.stdout,
)

An individual data point will look like this:

{
	latitude: 50.9069,
	longitude: 7.0649,
	altitude: 36.9,
	speed: 97, // km/h
	nrOfSatellites: 8,
	mode: '3' // see below
}

You can also use the EventEmitter-based API:

import {asEventEmitter} from 'live-icomera-position'

const positions = asEventEmitter()
positions.on('error', console.error)
positions.on('data', data => console.log(data))

Mode

The mode value in a datapoint appears familiar with the one a widespread gps client called GPSD uses. We don't have any confirmation that the icomera system uses GPSD, but if it did the mode values would mean following:

Value	State
0	no value seen.
1	no position.
2	2D position, no altitude.
3	3D position, altitude present.

source: GPSD Documentation

Related

• live-cd-wifi-position – Live vehicle geolocation of Czech Railways trains, taken from the on-board WiFi system.
• live-gomedia-position – Live vehicle geolocation, taken from the GoMedia on-board WiFi entertainment system.
• wifi-on-ice-position-stream – A stream of positions of German Railways ICE trains, taken from the on-board WiFi.
• sncf-wifi-portal-client – Query information from the SNCF WiFi portal in French TGV trains.
• digital-im-regio-portal-client – Query information from the Digital im Regio portal in German Regio trains.
• cd-wifi-client – A client for the onboard WiFi portal of České dráhy (Czech Railways) trains.
• portale-regionale-wifi-position – Query information from the Portale Regionale WiFi portal in Trenitalia (Italian Railways) trains.

Contributing

If you have a question or need support using live-icomera-position, please double-check your code and setup first. If you think you have found a bug or want to propose a feature, use the issues page.