
52
MessengerBLE
User Guide
9.7
GeoFence Configuration – Type 5
A geo-fence defines a geographical boundary, using GPS coordinates to construct a
virtual barrier. If this boundary is crossed, the Messenger generates a fence
notification event indicating the position of the vehicle relative to the boundary, inside
or out. The Messenger supports up to 10 fences. A rectangular geo-fence is defined by
2 corners of a rectangle, top left and bottom right. A circular geo-fence is defined by a
center and a radius.
Parameters For Geofence Configuration
Parameter
Code
Reference
Description
Default
1
Type
Defines the geometry of the geographical
boundary
Disabled
[0]
0 = disabled
1 = rectangular
2 = circular
2
Top Left
Latitude
Top left corner of rectangle, latitude
Range -90.000000 to +90.000000 deg
3
Top Left
Longitude
Top left corner of rectangle, longitude
Range -180.000000 to +180.000000 deg
4
Bottom Right
Latitude
Bottom right corner of rectangle, latitude
Range -90.000000 to +90.000000 deg
5
Bottom Right
Longitude
Bottom right corner of rectangle,
longitude
Range -180.000000 to +180.000000 deg
6
Center
Latitude
Center of circle, latitude
Range -90.000000 to +90.000000 deg
7
Center
Longitude
Center of circle, longitude
Range -180.000000 to +180.000000 deg
8
Radius
Radius of circle
Range 0.0 to 1000.0 miles