FIEDLER H1, Руководство пользователя

Страница: 11 / 82

Hydro Logger H1 User manual
FIEDLER
electronics for ecology
11
3.4. Architecture of automatic data collection via
The H1 telemetry station is equipped with a GSM/GPRS data module for auto-
matic transfer of measured data from the device to the database on the server.
ACTIVE STATIONS SYSTEM
FIEDLER telemetry stations are characterized by long battery life and very low
operating costs with regular data transmission to the server. This has been
achieved by a system of active stations and a passive server:
▪
The server is always on and waiting for data from the individual teleme-
try stations, which themselves determine when the data will be
transmitted to the server.
▪
The system can receive data from multiple stations simultaneously.
▪
The GSM/GPRS modem in the station is switched on only for the ne-
cessary time needed to transfer data from the station to the server -
saving power of the power battery.
▪
If an extraordinary event occurs at the measurement location, the sta-
tion can immediately transmit this information to the server - the usual
delay of cyclical calling of stations by the server is eliminated.
▪
The system allows the use of operationally cheap types of tariff SIM
cards without a fixed IP address in the stations. The fixed IP address is
usually charged for and this increases the overall operating costs of the
system.