Автофон S-Маяк 5.x [5/44] Operation principle

AutoFon SE-Mayak

AutoFon SE-Mayak has a GSM/GPRS-modem, GPS/GLONASS-

receiver, microprocessor, and an independent power source.

Autonomy and the small size of this device, allows it to be hidden

into the most hard to nd and unexpected places. It is dicult to de

tect the device with GSM-signal detectors because it is in hiberna-

tion most of the time.

During interval mode the device is active only for a few minutes.

When the device is oine, internal batteries allow

AutoFon SE-Mayak to operate in interval mode by activating it for a

few minutes. In this mode the device consumes little battery power.

Interval mode does not allow instantaneous communication with the

device – it will execute commands during the next online session.

The communication interval can be set from 15 minutes to 30 days.

When operating in interval mode, the device hibernates most of the

time and wakes up by Alarm clock, which can be setted up up to 4

dierent modes.

G - GPS and GSM-coordinates detection

The device determines location by satellites and sends a message

with the exact coordinates in a format specied by the conguration

command: SETUP= (parameter 8, page 20). Coordinates are either

in the form of numerical data or hyperlinks to dierent map servers

(Google Maps and Yandex.Maps). Additional parameters (date and

time positioning, speed, etc.) can also be delivered within the message.

S - GSM-coordinates detection mode

The device sends an SMS-message with IDs of four nearby GSM base

stations, level of signal strength from the current GSM base station,

the device’s temperature, battery charge and operating mode. This

mode is used when it is not necessary to determine exact coordinates.

F - Standby mode

The most economical operation mode. The device is activated by

set alarm time, turns the GSM-module on and waits SMS-messages.

After receiving the command, the device executes it. If there is no

OPERATION PRINCIPLE