Introduction to Geofence Zones
The Teltonika FMC640 device supports up to 100 configurable Geofence zones. A Geofence zone is a virtual boundary defined on a map. When a tracked object crosses the border of a defined Geofence zone, the device can generate an event.
A Frame border acts as an additional, outer border around the Geofence zone. Its purpose is to prevent false events that might occur when a tracked object stops precisely on the Geofence border. This is particularly useful to mitigate issues arising from GNSS errors, which can cause records to be logged both inside and outside the defined area. An event is triggered only when both the primary Geofence border and the Frame border are crossed. See the accompanying visualization for details: a blue track indicates entry into an area, while a red track indicates it has not.
The shape of a Geofence zone can be defined by the user as either a rectangle or a circle.
Geofence Event Priorities and Settings
Geofence events are categorized into three priority levels: Low, High, or Panic. These levels determine the urgency and importance of the event information sent to the server. For more detailed information on setting priorities, refer to the FMC640 I/O settings.
The Generate event setting allows users to specify when a record should be generated upon crossing a geofence.
The Eventual records setting controls the visibility of scenario status values. When disabled, the status value appears in every AVL record. When enabled, the value is appended only to eventual records, making logs more concise.
OverSpeeding functionality can be configured independently for each Geozone. Regular OverSpeeding scenarios and Geozone-based OverSpeeding operate separately. However, if digital output control is enabled within a regular OverSpeeding scenario, the Geozone OverSpeeding scenario can also influence it. For instance, if the device is within multiple geozones and OverSpeeding is detected in any of them, the digital output will activate. The digital output will only deactivate when OverSpeeding is no longer detected in any zone.
Geofence Zone Coordinate and Parameter Configuration
The configuration of geofence zones involves setting specific coordinates and parameters:
- X1: Used to define the X-coordinate (longitude) of the left bottom corner of a geofence zone.
- Y1: Used to define the Y-coordinate (latitude) of the left bottom corner of a geofence zone.
- X2 or R:
- When a Rectangular zone is used, X2 defines the X-coordinate (longitude) of the upper right corner.
- When a Circular zone is used, R defines the radius of the circle.
- Y2: Used to define the Y-coordinate (latitude) of the upper right corner for a Rectangular zone.
User Interface and Map Visualization
The device configuration interface includes a sidebar menu with various options such as "SMS Events", "GSM Operators", "Features", "Accelerometer Features", "Auto Geofence", "Manual Geofence Settings", and "Manual Geofence Zones".
The main configuration panel for manual geofences allows for detailed setup:
- Manual geofence selection: A dropdown menu to select the number of geozones to configure (e.g., "1 geozone").
- Manual geofence 1 section:
- Feature: Buttons to set the geofence status to "Disable", "Low Priority", "High Priority", or "Panic Priority".
- Generate Event: Options to trigger events "On Exit", "On Entrance", or "On Both" borders.
- Eventual Records: Toggle between "Disable" and "Enable" for appending status to eventual records.
- Shape Type: Selection options for "Circle", "Polygon", or "Rectangle".
- Radius: Input field for the radius of a circular geofence (e.g., 5 units).
- Latitude (Y1): Input field for the Y1 coordinate (e.g., 0,0).
- Longitude (X1): Input field for the X1 coordinate (e.g., 0,0).
- Max Allowed Speed (km/h): Input field for the maximum speed threshold (e.g., 90 km/h).
The accompanying map visualization displays a geographical area with street names like "Gedimino pr.", "Jogailos g.", and "Vilnius g.". It highlights points of interest such as "DNB", "Maxima X", "Zara", "Douglas", and "Novotel Vilnius". The map illustrates movement tracks, with a blue track indicating entry into an area and a red track indicating it has not. A scale bar is provided, showing "10 m" and "50 ft". The map displays geographical coordinates at the bottom: "54° 41' 12,04" N 25° 16' 47,81" E". The map data is attributed to "@OpenStreetMap contributors".