Skip to content

hardillb/node-red-node-geofence

master
Switch branches/tags
Code

Latest commit

 

Git stats

Files

Permalink
Failed to load latest commit information.
Type
Name
Latest commit message
Commit time
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

node-red-node-geofence

Geofence node for Node-RED

This uses the geolib node to check if points fall with in a given region. Points are taken from the first of the following msg properties in this order:

  1. msg.location.lat & msg.location.lon
  2. msg.lat & msg.lon
  3. msg.payload.lat & msg.payload.lon

Region can be circular, rectangular or polygons and are drawn on to a map in the config node.

screenshot of config node

Messages can be filtered depending on if they fall inside or outside the given region or the node can append the node name to a list of areas the msg falls in (to allow the chaining of geofence nodes).

The list is stored in msg.location.isat in the following format:

msg.location: {
    inarea: true,
    isat: [
      'firstArea',
      'secondArea'
    ],
    distances: {
      'firstArea': 100,
      'secondArea': 15
    }
}

And also includes the distance in meters from the centre (or centroid for polygons) of the region.

The config node uses leaflet and openstreetmap data so requires internet access. You can drop back to a non graphical config by replacing geofence.html with geofence-nomap.html

Possible breaking changes moving from version 0.0.x to 0.1.0.

These are arround the "add 'inarea'" mode

  • msg.location.inarea is always a boolean and now just reflects the last geofence node that the message passes through
  • msg.location.distances is now just an object using the name as a key, rather than an array of objects

WorldMap Support

If the check box is ticked then a second output port will be added to the node. The msg output from this port will include the shape of the geofence zone that can be fed directly into a WorldMap node so that it will be drawn on the geofence layer.

This output is triggered by a message with msg.payload.action set to send. This can be initiated by using the WorldMap in node when a new browser connects.

Messages with msg.payload.action set to sendwill not be processed against the geofence, these messages are only intended to come from the WorldMap in node.

About

Geofence node for Node-RED

Resources

License

Stars

Watchers

Forks

Releases

No releases published

Sponsor this project

 

Packages

No packages published