Alerts are used to notify when key events occur, such as device moving in or out of a geofence,
or a digital or analog input moving outside of preset thresholds.
Users are notified of current alerts whilst accessing the system,
however notifications can also be sent via e-mail and as SMS messages.
Geofence Alerts
As well as standard alerts generated when a device enters or leaves a geofence,
we also support more advanced capabilities that overcome problems often seen in competing solutions.
One example is the enter and stop alert, which only triggers if a device enters
a geofence and then stops inside it. This helps to prevent misleading alerts being raised
when a device passes through a geofence that spans a major road.
Analog Alerts
Alerts can be configured for any analog readings supported by a device, such as speed,
battery level, or temperature. Alerts can be set to trigger when the reading passes
above or below a particular level.
Digital Alerts
As with analogs, alerts can also be configured for any digital readings provided
by a device. Digital alerts are often used for events such as panic buttons being pressed,
a vehicle alert being activated, or a journey commencing.
Three types of digital alert trigger are supported:
- On to Off
- Off to On
- Change of state