Neomatica, LLC. Terminal ADM700 3G GLONASS/GPS. Ed. 7.2, dd. 24.11.2018
9
3 Design
The tracker consists of a microcontroller, non-volatile memory, GLONASS/GPS-modules,
GSM-module, RS-485 digital interface, RS-232 digital interface, 1-Wire digital interface, CAN
digital interface, analogue (discrete) inputs, pulse (discrete) inputs, discrete outputs, an
acceleration meter, a memory card interface.
GLONASS/GPS module
is used for receiving signals from satellites of GLONASS/GPS
systems and receiver antenna positioning (latitude, longitude and altitude) as well the exact GMT
time, travel speed and direction.
GSM/GPRS module
installed in the tracker has the following functions:
⎯
Setting and maintaining the outbound TCP/IP connection (receiving and transmitting data in
GPRS mode);
⎯
SMS messages receiving and sending;
⎯
Incoming voice call receiving and voice connection setting.
For data transmission GSM/GPRS module establishes and maintains connection to the
server and from time to time transmits information packets. Time of data transmission to the server
during the vehicle parking and movement is different and might be changed by the user.
For displaying the working condition, the tracker has got 3 LED indicators: red, green and
blue.
Red LED indicator
displays presence/absence of the tracker external power supply. When
the external power supply is there, the light is always on.
Green LED indicator
displays the GLONASS/GPS module condition:
−
blinks four times: GLONASS/GPS module is switched off because of the low battery and
the external power supply cut off;
−
blinks three times: GLONASS/GPS module is switched on but no data have been received
from it yet;
−
blinks twice: data from GLONASS/GPS module have been received but coordinates are not
valid;
−
blinks once: GLONASS/GPS module has defined the time and the valid coordinates.
