User`s manual

TWIG LOCATOR FEATURES
13
The other way to activate tracking is by send-
ing Locator a ?TRC (simple tracking request
with interval in minutes), ?TRS (simple track-
ing request with interval in seconds), or ?TRG
(complex tracking request) message from a
mobile phone or a back-end system support-
ing MPTP protocol.
• Simple tracking request, interval in minutes
The format of the request is:
?TRC_Interval_Number of reports.
- Interval : Time interval for position
updates. A value between 1 and
65535 (minutes).
-
Number of reports : Total number of
position updates. A value between 1
and 65535.
Example of a message: ?TRC_10_20
• Simple tracking request, interval in seconds
The format of the request is:
?TRS_Interval_Number of reports
- Interval : Time interval for position
updates. A value between 60 and
65535 (seconds).
-
Number of reports : Total number of
position updates. A value between 1
and 65535.
Example of a message: ?TRS_60_30
• Complex tracking request, area tracking
The format of the request is: ?TRG_Trigger
type_Service state_Radius_Method_Area
centre_Interval
- Trigger type : Defines tracking type.
Choose 0 to activate area tracking.
-
Service state : Defines whether service
is on or not. Choose 1 to activate and
0 to deactivate the service.
-
Radius : Defines radius for the tracked
area. A value between 1 and 9999
(metres).
-
Method : Defines when tracking
updates are sent by Locator. Choose 0
if you want to receive tracking
updates while Locator stays outside
the defined area. If you wish Locator
to alert you when the device leaves
the defined area, choose 3.