Neomatica, LLC. Terminal ADM700 3G GLONASS/GPS. Ed. 7.2, dd. 24.11.2018
6
depending on the GSM connection condition. Data transmission is possible only if there is a
mobile connection signal of the GSM 850/900/1800/1900 standard supporting the packet data
transmission (GPRS).
The vehicle travel route is described in the form of separate points in time where all the
information coming to the tracker from inner sensors and extra equipment is recorded. The route
point is saved when at least one event occurs, such as:
−
travel direction changes by an angle which is greater than the pre-set one;
−
the straight-ahead travel is performed at a distance, which is longer than the pre-set one;
−
the pre-set acceleration limit is broken;
−
the time for putting the point while traveling (parking) is expired;
−
device status change (see the Appendix A);
−
an event occurs in analogue and/or discrete inputs.
In this way, route points might be saved with the time interval from one second to several
minutes allowing for a quality routing, recording any changes without a surfeit of information saved
in the “black box” and increase in GPRS traffic.
The tracker with the GLONASS/GPS module ensures time and navigation parameters
measuring based on GLONASS and/or GPS satellites. After being connected to the power supply,
the tracker starts receiving data from satellites, locating itself, identifying speed, time, measuring
voltage in inputs and connecting to the server. After being connected to the server, the tracker
transmits thereto the data packets with the pre-set frequency or when an event occurs. If for any
reason the connection to the server fails, all the information will be saved in the tracker non-
volatile memory and transmitted as soon as the connection is restored.
Data transmitted by the tracker:
⎯
GMT date and time;
⎯
coordinates (latitude, longitude, altitude);
⎯
speed, acceleration and travel direction;
⎯
number of satellites when fixing a navigation problem;
⎯
precision loss factor in a horizontal plane;
⎯
voltage values in analogue inputs;
⎯
values from pulse inputs;
⎯
data about events occurred;
⎯
data from connected sensors;
⎯
discrete outputs condition;
⎯
device condition (see the Appendix A).
