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2. General Description
The Tracker can be operated by standard SMS messages, or via GPRS. Via an SMS,
the GPS position data can be requested and will be sent back to the requested party’s
mobile phone via an SMS. The number and the time sequence of these GPS data
blocks and other parameters are fully programmable by an instruction SMS.
2.1 Data Format of SMS Command Messages:
The data has to comply with an exact format able to be read by the tracker module.
The format is
:
[Password]-[mode]-[Sub-Group1]-[Sub-Group2]
Password
:
Factory default password is
1234
Mode
:
Select the operating mode. This can be a Direct command,
Set-up command, or a Recall command.
Sub-Group1
:
ON / OFF commands; or Set-up (Initialization) or Request group.
Sub-Group2
:
Parameters of the set-up group. Information like Telephone
numbers, setting string of T and C mode, data format for GPS
information (DMS,Google,Ddec) etc.
2.2 SOS function:
When the SOS button is pressed, the position data will be sent to a preset phone
number(s). Maximum 8 numbers can be stored which all will be notified if a SOS situation
occurs. These phone numbers can be set via a SMS message sent to the tracker unit.
2.3 Line-In and Line-Out:
(Only applicable for TRC0078)
This tracker has 4 Line-inputs, of which 2 can be used to detect switch positions. The
other 2 can be used for relative values such as temperature or fuel level. Via the Out-put
lines remote equipment can be activated like an Alarm or immobilizer
2.4 Geo-Fence feature:
This tracker has a geo-fence feature. If activated, the instructed party will receive a SMS
when the Tracker unit exits set boundary area.
2.5 Car Battery connection:
(TRC0078 only)
This tracker has a built-in DC-DC converter to allow to be connected to the 12-24V car
battery. This circuitry is special design to meet the ISO 7637 requirements
2.6 Battery Low alert:
When the Internal battery is nearly empty and reaches a certain voltage level the charge
LED starts blinking and later an SMS message will be sent to indicate
“Battery Low”
2.7 Stationary or on the move:
(TRE0078 only)
In “Tracking” mode; if the position data equals the 4 previous transmitted positions (to be
retrieved from SMS 4), the “Tracking” mode will stop, a SMS message will be sent with
extra info in the SMS message
“Stationary Position”.
2.8 Motion sensor:
The tracker has a motion sensor and when switched ON the tracker will automatically
switch to Track Mode when acceleration is detected twice within 30 sec to 1 minute.
