FIEDLER H1, Руководство пользователя

Страница: 67 / 82

Hydro Logger H1 User manual
FIEDLER
electronics for ecology
67
6.8.5. Control SMS incoming
The Hydro Logger H1 does not contain any relays and therefore, unlike the
M4016-G3, the number of control SMS is severely limited. In fact, it is only a
command to immediately send the measured data to a server on the Internet.
This command is usually used to immediately rebuild parameters according to
a new parameter file on the server.
HESLO,DIAL0 After receiving this command, the measured data is imme-
diately transferred to the server via the GPRS network and,
if necessary, a new parameter file is downloaded from the
server to the device (no waiting for a regular data session).
The stations have built-in two-level security against misuse of control
commands by an unauthorized person.
The first level of protection consists in the presence of a HESLA, which must be
used to start every command message. The password can be any sequence of
up to 12i characters, separated from subsequent commands by a comma.
Another configurable condition for executing the command is that the phone
number from which the control message was received is present in the list of
stations with SMS reception enabled (if the option "Receive messages only from
senders in the list" is set in the basic GSM parameters window).
In this case, the
phone number must be listed with the country identification, i.e. for the Czech
Republic with the 420.
The station responds to command SMS messages with a confirmation SMS
message that the command has been received and is understandable. If this
confirmation SMS is not to be sent, the special command NA (No Answer) must
be included anywhere in the text of the control SMS.
EXAMPLE CONTROL SMS
HESLO,DIAL0
PASSWORD . .. access code (enter the actual password set on the device).
DIAL0 ... the procedure is activated to send data to the server immediately
S e c u r i t y
P a s s w o r d :
S e c u r i t y
R e s p o n s e
s u p p r e s s i o n