Smart Tracker GT03A User Manual - page 9
20:08:18 http://maps.\google.com/maps?q=N22.577169,E113.916754.”
After the message, the device will dial the preset SOS numbers in turn. If any SOS number
answers the call or no response from all the number which been dialed for three cycles, it
will stop dialing. After dialing the SOS numbers, if GPS is located, the device will send GPS
location SMS again.
After activating SOS alarm, if the GPS is not located and fail to connect to the platform
either, the device can not get the position information, and it will send SMS “Emergency call,
Attention” to the preset SOS numbers.
Note: SOS numbers should be preset for this function!
6.6 Geo-fence
You can set a special area as geo-fence field. When the car or person gets in/out of this
area, the device will send alarm to SOS numbers when the geo-fence function is ON.
6.6.1 Activate geo-fence function
Geo-fence function is off as default. You can activate it by SMS command.
There are two kinds of Geo-fences, circular and rectangle.
(1) Circular fence
Set a coordinate as the centre of the circular fence, and then set a distance as radius.
Go in/out fence SMS:
“
FENCE,ON,0,latitude,longitude,radius#
”
e.g.: FENCE,ON,0,N22.57139,E113.87710,5#
It means the radius is 500 meters
(
radius 1=100M
,
2=200M····and so on
)
The device will reply “OK” if set successfully. As long as the device goes in or out of this
circular area, it will send alarm to the SOS numbers.
You can also set current location coordinates as the centre of the circular fence,
“
FENCE,ON,0,0,0,radius#
” (This SMS is only available when device get located)
Go in fence SMS:
Any number can send the following message”
FENCE,ON,0,latitude,longitude,radius,IN#
”
to turn on circular fence function
e.g.: FENCE,ON,0,N22.57139,E113.87710,5,IN#
It means the radius is 500 meters
(
radius 1=100M
,
2=200M····and so on
)
The device will reply “OK” if set successfully. As long as the device goes in this circular area,