Chapter 2 — Getting to Know the Personal Tracker
16
GMPT-401 Personal Tracker User Guide
GPS Check
A GPS check obtains position information (GPS fix) but does not send the
information to ViewPoint. You can schedule one or several GPS checks to be
performed in between reporting intervals. This allows the GPS data to remain
updated and allows the Tracker's last known position to be kept up to date. If
local Geofence checking is enabled in the Tracker and you are in an area
defined as an alert region, then the tracker will wake and send an Alert
message (this function is not available at first release).
Mailbox Check
A mailbox check will power the modem which checks for pending messages
(configuration messages and text messages). If messages are waiting, the
tracker will receive them and action them. Any pending messages in the app
outbox will also be sent. You can schedule one or several mailbox checks in
between reporting intervals. Tracking messages are not sent during mailbox
checks however the mailbox is checked automatically when a Tracking report is
sent.
SOS Messages (Alert Mode)
When alert mode is activated an SOS tracking message is sent immediately. If
there is no GPS available, then the last-known position will be sent in the first
message. A mailbox check will be made after the SOS message has been
successfully sent. ViewPoint notifies the operator of an alert message by
raising an alarm to ensure fast reaction. The alert mode can be configured for
shorter reporting intervals so the user can be tracked more regularly under
stress conditions. The SOS tracking message can be configured to be sent:
•
One time, then alert mode is disabled.
•
At a configured interval until a specified timeout has expired.
Note:
Additional charges may apply for mailbox checks when no messages are
waiting.